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Pélissier, Frantz. "Modélisation et développement d'une plateforme intelligente pour la capture d'images panoramiques cylindriques." Thesis, Clermont-Ferrand 2, 2014. http://www.theses.fr/2014CLF22486/document.
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Dans la plupart des applications de robotique, un système de vision apporte une amélioration significative de la perception de l’environnement. La vision panoramique est particulièrement intéressante car elle rend possible une perception omnidirectionnelle. Elle est cependant rarement utilisée en pratique à cause des limitations technologiques découlant des méthodes la permettant. La grande majorité de ces méthodes associent des caméras, des miroirs, des grands angles et des systèmes rotatifs ensembles pour créer des champs de vision élargis. Les principaux défauts de ces méthodes sont les importantes distorsions des images et l’hétérogénéité de la résolution. Certaines autres méthodes permettant des résolutions homogènes, prodiguent un flot de données très important qui est difficile à traiter en temps réel et sont soit trop lents soit manquent de précision. Pour résoudre ces problèmes, nous proposons la réalisation d’une caméra panoramique intelligente qui présente plusieurs améliorations technologiques par rapport aux autres caméras linéaires rotatives. Cette caméra capture des panoramas cylindriques homogènes avec une résolution de 6600 × 2048 pixels. La synchronisation de la capture avec la position angulaire est possible grâce à une plateforme rotative de précision. Nous proposons aussi une solution au problème que pose le gros flot de données avec l’implémentation d’un extracteur de primitives qui sélectionne uniquement les primitives invariantes des images pour donner un système panoramique de vision qui ne transmet que les données pertinentes. Le système a été modélisé et une méthode de calibrage spécifiquement conçue pour les systèmes cylindriques rotatifs est présentée. Enfin, une application de localisation et de reconstruction 3D est décrite pour montrer une utilisation pratique dans une application de type Simultaneous Localization And Mapping ( SLAM )In most robotic applications, vision systems can significantly improve the perception of the environment. The panoramic view has particular attractions because it allows omnidirectional perception. However, it is rarely used because the methods that provide panoramic views also have significant drawbacks. Most of these omnidirectional vision systems involve the combination of a matrix camera and a mirror, rotating matrix cameras or a wide angle lens. The major drawbacks of this type of sensors are in the great distortions of the images and the heterogeneity of the resolution. Some other methods, while providing homogeneous resolutions, also provide a huge data flow that is difficult to process in real time and are either too slow or lacking in precision. To address these problems, we propose a smart panoramic vision system that presents technological improvements over rotating linear sensor methods. It allows homogeneous 360 degree cylindrical imaging with a resolution of 6600 × 2048 pixels and a precision turntable to synchronize position with acquisition. We also propose a solution to the bandwidth problem with the implementation of a feature etractor that selects only the invariant feaures of the image in such a way that the camera produces a panoramic view at high speed while delivering only relevant information. A general geometric model has been developped has been developped to describe the image formation process and a caligration method specially designed for this kind of sensor is presented. Finally, localisation and structure from motion experiments are described to show a practical use of the system in SLAM applications
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Baykent, Hayri Kerem. "Implementation Of A Low-cost Smart Camera Apllication On A Cots System." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12613944/index.pdf.
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The objective of this study is to implement a low-cost smart camera application on a
Commercial off the Shelf system that is based on Texas Instrument&rsquos DM3730 System on Chip processor. Although there are different architectures for smart camera applications, ARM plus DSP based System on Chip architecture is selected for implementation because of its different core abilities. Beagleboard-XM platform that has an ARM plus DSP based System on Chip processor is chosen as Commercial off the Shelf platform. During this thesis, firstly to start-up the Commercial off the Shelf platform the design steps of porting an embedded Linux to ARM core of System on Chip processor is described. Then design steps that are necessary for implementation of smart camera applications on both ARM and DSP cores in parallel are given in detail. Furthermore, the real-time image processing performance of the Beagleboard-xM platform for the smart camera applications is evaluated with simple implementations.
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Szczepanski, Michał. "Online stereo camera calibration on embedded systems." Thesis, Université Clermont Auvergne (2017-2020), 2019. http://www.theses.fr/2019CLFAC095.
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Cette thèse décrit une approche de calibration en ligne des caméras stéréo pour des systèmes embarqués. Le manuscrit introduit une nouvelle mesure de la qualité du service de cette fonctionnalité dans les systèmes cyber physiques. Ainsi, le suivi et le calcul des paramètres internes du capteur (requis pour de nombreuses tâches de vision par ordinateur) est réalisé dynamiquement. La méthode permet à la fois d'augmenter la sécurité et d'améliorer les performances des systèmes utilisant des caméras stéréo. Elle prolonge la durée de vie des appareils grâce à cette procédure d'auto-réparation, et peut accroître l'autonomie. Des systèmes tels que les robots mobiles ou les lunettes intelligentes en particulier peuvent directement bénéficier de cette technique.La caméra stéréo est un capteur capable de fournir un large spectre de données. Au préalable, le capteur doit être calibré extrinsèquement, c'est à dire que les positions relatives des deux caméras doivent être déterminées. Cependant, cette calibration extrinsèque peut varier au cours du temps à cause d'interactions avec l'environnement extérieur par exemple (chocs, vibrations...). Ainsi, une opération de recalibration permet de corriger ces effets. En effet, des données mal comprises peuvent entraîner des erreurs et le mauvais fonctionnement des applications. Afin de contrer un tel scénario, le système doit disposer d'un mécanisme interne, la qualité des services, pour décider si les paramètres actuels sont corrects et/ou en calculer des nouveaux, si nécessaire. L'approche proposée dans cette thèse est une méthode d'auto-calibration basée sur l'utilisation de données issues uniquement de la scène observée (sans modèles contrôlés). Tout d'abord, nous considérons la calibration comme un processus système s'exécutant en arrière-plan devant fonctionner en continu et en temps réel. Cette calibration interne n'est pas la tâche principale du système, mais la procédure sur laquelle s'appuient les applications de haut niveau. Pour cette raison, les contraintes systèmes limitent considérablement l'algorithme en termes de complexité, de mémoire et de temps. La méthode de calibration proposée nécessite peu de ressources et utilise des données standards provenant d'applications de vision par ordinateur, de sorte qu'elle est masquée à l'intérieur du pipeline applicatif. Dans ce manuscrit, de nombreuses discussions sont consacrées aux sujets liés à la calibration de caméras en ligne pour des systèmes embarqués, tels que des problématiques sur l'extraction de points d'intérêts robustes et au calcul du facteur d'échelle, les aspects d’implémentation matérielle, les applications de haut niveau nécessitant cette approche, etc.Enfin, cette thèse décrit et explique une méthodologie pour la constitution d'un nouveau type d'ensemble de données, permettant de représenter un changement de position d'une caméra,pour valider l’approche. Le manuscrit explique également les différents environnements de travail utilisés dans la réalisation des jeux de données et la procédure de calibration de la caméra. De plus, il présente un premier prototype de casque intelligent, sur lequel s’exécute dynamiquement le service d’auto-calibration proposé. Enfin, une caractérisation en temps réel sur un processeur embarqué ARM Cortex A7 est réaliséeThis thesis describes an approach for online calibration of stereo cameras on embeddedsystems. It introduces a new functionality for cyber physical systems by measuring the qualityof service of the calibration. Thus, the manuscript proposes a dynamic monitoring andcalculation of the internal sensor parameters required for many computer vision tasks. Themethod improves both security and system efficiency using stereo cameras. It prolongs the lifeof the devices thanks to this self-repair capability, which increases autonomy. Systems such asmobile robots or smart glasses in particular can directly benefit from this technique.The stereo camera is a sensor capable of providing a wide spectrum of data. Beforehand, thissensor must be extrinsically calibrated, i.e. the relative positions of the two cameras must bedetermined.. However, camera extrinsic calibration can change over time due to interactionswith the external environment for example (shocks, vibrations...). Thus, a recalibrationoperation allow correcting these effects. Indeed, misunderstood data can lead to errors andmalfunction of applications. In order to counter such a scenario, the system must have aninternal mechanism, a quality of service, to decide whether the current parameters are correctand/or calculate new ones, if necessary.The approach proposed in this thesis is a self-calibration method based on the use of data coming only from the observed scene, without controlled models. First of all, we consider calibration as a system process running in the background and having to run continuously in real time. This internal calibration is not the main task of the system, but the procedure on which high-level applications rely. For this reason, system constraints severely limit the algorithm in terms of complexity, memory and time. The proposed calibration method requires few resources and uses standard data from computer vision applications, so it is hidden within the application pipeline. In this manuscript, we present many discussions to topics related to the online stereocalibration on embedded systems, such as problems on the extraction of robust points ofinterest, the calculation of the scale factor, hardware implementation aspects, high-levelapplications requiring this approach, etc. Finally, this thesis describes and explains amethodology for the building of a new type of dataset to represent the change of the cameraposition to validate the approach. The manuscript also explains the different workenvironments used in the realization of the datasets and the camera calibration procedure. Inaddition, it presents the first prototype of a smart helmet, on which the proposed self-calibration service is dynamically executed. Finally, this thesis characterizes the real-timecalibration on an embedded ARM Cortex A7 processor
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Hasanzadeh, Mujtaba, and Alexandra Hengl. "Real-Time Pupillary Analysis By An Intelligent Embedded System." Thesis, Mälardalens högskola, Inbyggda system, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44352.
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With no online pupillary analysis methods today, both the medical and the research fields are left to carry out a lengthy, manual and often faulty examination. A real-time, intelligent, embedded systems solution to pupillary analysis would help reduce faulty diagnosis, speed-up the analysis procedure by eliminating the human expert operator and in general, provide a versatile and highly adaptable research tool. Therefore, this thesis has sought to investigate, develop and test possible system designs for pupillary analysis, with the aim for caffeine detection. A pair of LED manipulator glasses have been designed to standardize the illumination method across testing. A data analysis method of the raw pupillary data has been established offline and then adapted to a real-time platform. ANN was chosen as classification algorithm. The accuracy of the ANN from the offline analysis was 94% while for the online classification the obtained accuracy was 17%. A realtime data communication and synchronization method has been developed. The resulting system showed reliable and fast execution times. Data analysis and classification took no longer than 2ms, faulty data detection showed consistent results. Data communication suffered no message loss. In conclusion, it is reported that a real-time, intelligent, embedded solution is feasible for pupillary analysis.
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Abtahi, Shabnam. "Driver Drowsiness Monitoring Based on Yawning Detection." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23295.
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Driving while drowsy is a major cause behind road accidents, and exposes the driver to a much higher crash risk compared to driving while alert. Therefore, the use of assistive systems that monitor a driver’s level of vigilance and alert the fatigue driver can be significant in the prevention of accidents. This thesis introduces three different methods towards the detection of drivers’ drowsiness based on yawning measurement. All three approaches involve several steps, including the real time detection of the driver’s face, mouth and yawning. The last approach, which is the most accurate, is based on the Viola-Jones theory for face and mouth detection and the back projection theory for measuring both the rate and the amount of changes in the mouth for yawning detection. Test results demonstrate that the proposed system can efficiently measure the aforementioned parameters and detect the yawning state as a sign of a driver’s drowsiness.
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Bouderbane, Mustapha. "Système de vision à haute gamme dynamique auto adaptable." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCK048.
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La génération d’images à grande gamme de dynamique (HDR) à l’aide de plusieurs expositions est largement utilisée pour récupérer la gamme de dynamique entière d’une scène filmée. La technique se base sur la fusion de deux images (ou plus) à faibles gamme de dynamique(LDR). Cependant, cette technique doit être utilisée pour les scènes statiques et elle ne peut pas être appliquée directement pour les scènes contenant du mouvement. Les mouvements introduits par les objets dans les images de pile d’images LDR créent des artefacts fantômes dans l’image HDR reconstruite.Dans cette thèse, nous avons étudié et évalué un grand nombre d’algorithmes utilisés pour corriger ou éviter ces artefacts. Nous avons fait un compromis entre robustesse et complexité dans le choix de la méthode permettant la suppression de cet artefact afin de proposer un système de générationde vidéo HDR en temps réel (caméra intelligente). Ce dernier est implémenté sur un circuit FPGA.Cette caméra intelligente basée sur un FPGA est présentée avec des résultats expérimentaux de la conception démontrant l’efficacité de la méthode sélectionnée. Le système proposé permet de générer des flux vidéo HDR, y compris le processus de suppression des artefacts fantômes, à 60images/s pour une résolution de capteur complète (1280 × 1024)High dynamic range (HDR) image generation using temporal exposure bracketing is widely used to recover the whole dynamic range of a filmed scene by fusion of two or more low dynamic range (LDR) images. Temporal exposure bracketing technique should be employed for static scenes and it cannot be applied directly for dynamic scenes. Motions introduced by moving objects in the LDR stack images create ghosts artifacts in the reconstructed HDR image. In this thesis, we have studied and evaluated a large nuber of algorithms used to correct or avoid these artifacts and we mad a trade-off between robustness and complexity in order to propose a real-time HDR video generation system.The real-time HDR image generation system is implemented on a FPGA circuit. This FPGA-based smart camera is presented with some experimental results to demonstrate the selected method and design efficiency. The proposed system enables HDR video streams, including ghost removal processing, to be generated at 60 f ps for a full sensor resolution (1280 × 1024)
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Burbano, Andres. "Système de caméras intelligentes pour l’étude en temps-réel de personnes en mouvement." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS139/document.
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Nous proposons un système dedétection et de suivi des personnes enmouvement dans des grands espaces. Notresolution repose sur un réseau de camérasintelligentes pour l'extraction desinformations spatio-temporelles despersonnes. Les caméras sont composées d'uncapteur 3D, d'un système embarqué et decommunication. Nous avons montrél'efficacité du placement des capteurs 3D enposition zénithale par rapport auxoccultations et variations d’échelle.Nous garantissons l'exécution des traitementsen temps-réel (~20 fps), permettantde détecter des déplacements rapides avecune précision jusqu’à 99 %, et capable d’unfiltrage paramétrique des cibles non désiréescomme les enfants ou les caddies.Nous avons réalisé une étude sur la viabilitétechnologique des résultats pour de grandsespaces, rendant la solution industrialisableWe propose a detection and trackingsystem of people moving in large spacessystem. Our solution is based on a network ofsmart cameras capable of retrievingspatiotemporal information from the observedpeople. These smart cameras are composed bya 3d sensor, an onboard system and acommunication and power supply system. Weexposed the efficacy of the overhead positionto decreasing the occlusion and the scale'svariation.Finally, we carried out a study on the use ofspace, and a global trajectories analysis ofrecovered information by our and otherssystems, able to track people in large andcomplex spaces
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Boussadi, Mohamed Amine. "Conception et développement d'un circuit multiprocesseurs en ASIC dédié à une caméra intelligente." Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22552/document.
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Suffisante pour exécuter les algorithmes à la cadence de ces capteurs d’images performants, tout en gardant une faible consommation d’énergie. Les systèmes monoprocesseur n’arrivent plus à satisfaire les exigences de ce domaine. Ainsi, grâce aux avancées technologiques et en s’appuyant sur de précédents travaux sur les machines parallèles, les systèmes multiprocesseurs sur puce (MPSoC) représentent une solution intéressante et prometteuse. Dans de précédents travaux à cette thèse, la cible technologique pour développer de tels systèmes était les FPGA. Or les résultats ont montré les limites de cette cible en terme de ressource matérielles et en terme de performance (vitesse notamment). Ce constat nous amène à changer de cible c’est-à-dire à passer sur cible ASIC nécessitant ainsi de retravailler profondément l’architecture et les IPs qui existaient autour de la méthode existante (appelée HNCP, pour Homogeneous Network of Communicating Processors). Afin de bénéficier de la performance offerte par la cible ASIC, les systèmes multiprocesseurs proposés s’appuient sur la flexibilité de son architecture. Combinés à des squelettes de parallélisation facilitant la programmabilité de l’architecture, les circuits proposés permettent d’offrir des systèmes supportant le portage en temps réels de différentes classes d’algorithme de traitement d’images. Le résultat de ce travail a abouti à la fabrication d’un circuit intégré à base d’un seul processeur et de ses périphériques en technologie ST CMOS 65nm dont la surface est d’environ 1 mm² et à la définition de 2 architectures multiprocesseurs flexibles basées sur le concept des squelettes de parallélisation (une architecture de 16 coeurs de processeur en technologie ST CMOS 65 nm et une deuxième architecture de 64 coeurs de processeur en technologie ST CMOS FD-SOI 28 nm)Smart sensors today require processing components with sufficient power to run algorithms at the rate of these high-performance image sensors, while maintaining low power consumption. Monoprocessor systems are no longer able to meet the requirements of this field. Thus, thanks to technological advances and based on previous works on parallel computers, multiprocessor systems on chip (MPSoC) represent an interesting and promising solution. Previous works around this thesis have used FPGA as technological target. However, results have shown the limits of this target in terms of hardware resources and in terms of performance (speed in particular). This observation leads us to change the target from FPGA to ASIC. This migration requires deep rework at the architecture level. Particularly, existing IPs around the method (called HNCP for Homogeneous Network of Communicating Processors) have to be revisited. To take advantage of the performance offered by the ASIC target, proposed multiprocessor systems are based on the flexibility of its architecture. Combined with parallel skeletons that ease programmability of the architecture, the proposed circuits allow to offer systems that support various real-time image processing algorithms. This work has led to the fabrication of an integrated circuit based on a single processor and its peripheral using ST CMOS 65nm technology with an area around 1 mm². Moreover, two flexible multiprocessor architectures based on the concept of parallel skeletons have been proposed (a 16 cores 65 nm CMOS multiprocessors and a 64 cores 28 nm FD-SOI CMOS multiprocessors)
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Uddin-Al-Hasan, Main. "Real-time Embedded Panoramic Imaging for Spherical Camera System." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2518.
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Panoramas or stitched images are used in topographical mapping, panoramic 3D reconstruction, deep space exploration image processing, medical image processing, multimedia broadcasting, system automation, photography and other numerous fields. Generating real-time panoramic images in small embedded computer is of particular importance being lighter, smaller and mobile imaging system. Moreover, this type of lightweight panoramic imaging system is used for different types of industrial or home inspection. A real-time handheld panorama imaging system is developed using embedded real-time Linux as software module and Gumstix Overo and PandaBoard ES as hardware module. The proposed algorithm takes 62.6602 milliseconds to generate a panorama frame from three images using a homography matrix. Hence, the proposed algorithm is capable of generating panorama video with 15.95909365 frames per second. However, the algorithm is capable to be much speedier with more optimal homography matrix. During the development, Ångström Linux and Ubuntu Linux are used as the operating system with Gumstix Overo and PandaBoard ES respectively. The real-time kernel patch is used to configure the non-real-time Linux distribution for real-time operation. The serial communication software tools C-Kermit, Minicom are used for terminal emulation between development computer and small embedded computer. The software framework of the system consist UVC driver, V4L/V4L2 API, OpenCV API, FFMPEG API, GStreamer, x264, Cmake, Make software packages. The software framework of the system also consist stitching algorithm that has been adopted from available stitching methods with necessary modification. Our proposed stitching process automatically finds out motion model of the Spherical camera system and saves the matrix in a look file. The extracted homography matrix is then read from look file and used to generate real-time panorama image. The developed system generates real-time 180° view panorama image from a spherical camera system. Beside, a test environment is also developed to experiment calibration and real-time stitching with different image parameters. It is able to take images with different resolutions as input and produce high quality real-time panorama image. The QT framework is used to develop a multifunctional standalone software that has functions for displaying real-time process algorithm performance in real-time through data visualization, camera system calibration and other stitching options. The software runs both in Linux and Windows. Moreover, the system has been also realized as a prototype to develop a chimney inspection system for a local company.Main Uddin-Al-Hasan, E-mail: main.hasan@gmail.com
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Birem, Merwan. "Localisation et détection de fermeture de boucle basées saillance visuelle : algorithmes et architectures matérielles." Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22558/document.
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Dans plusieurs tâches de la robotique, la vision est considérée comme l’élément essentiel avec lequel la perception de l’environnement ou l’interaction avec d’autres utilisateurs peut se réaliser. Néanmoins, les artefacts potentiellement présents dans les images capturées rendent la tâche de reconnaissance et d’interprétation de l’information visuelle extrêmement compliquée. Il est de ce fait, très important d’utiliser des primitives robustes, stables et ayant un taux de répétabilité élevé afin d’obtenir de bonnes performances. Cette thèse porte sur les problèmes de localisation et de détection de fermeture de boucle d’un robot mobile en utilisant la saillance visuelle. Les résultats en termes de précision et d’efficacité des applications de localisation et de détection de fermeture sont évalués et comparés aux résultats obtenus avec des approches de l’état de l’art sur différentes séquences d’images acquises en milieu extérieur. Le principal inconvénient avec les modèles proposés pour l’extraction de zones de saillance est leur complexité de calcul, ce qui conduit à des temps de traitement important. Afin d’obtenir un traitement en temps réel, nous présentons dans ce mémoire l’implémentation du détecteur de régions saillantes sur la plate forme reconfigurable DreamCamIn several tasks of robotics, vision is considered to be the essential element by which the perception of the environment or the interaction with other users can be realized. However, the potential artifacts in the captured images make the task of recognition and interpretation of the visual information extremely complicated. It is therefore very important to use robust, stable and high repeatability rate primitives to achieve good performance. This thesis deals with the problems of localization and loop closure detection for a mobile robot using visual saliency. The results in terms of accuracy and efficiency of localization and closure detection applications are evaluated and compared to the results obtained with the approaches provided in literature, both applied on different sequences of images acquired in outdoor environnement. The main drawback with the models proposed for the extraction of salient regions is their computational complexity, which leads to significant processing time. To obtain a real-time processing, we present in this thesis also the implementation of the salient region detector on the reconfigurable platform DreamCam
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Isaksson, Jakob, and Lucas Magnusson. "Camera pose estimation with moving Aruco-board. : Retrieving camera pose in a stereo camera tolling system application." Thesis, Tekniska Högskolan, JTH, Datateknik och informatik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-51076.
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Stereo camera systems can be utilized for different applications such as position estimation,distance measuring, and 3d modelling. However, this requires the cameras to be calibrated.This paper proposes a traditional calibration solution with Aruco-markers mounted on avehicle to estimate the pose of a stereo camera system in a tolling environment. Our method isbased on Perspective N Point which presumes the intrinsic matrix to be already known. Thegoal is to find each camera’s pose by identifying the marker corners in pixel coordinates aswell as in world coordinates. Our tests show a worst-case error of 21.5 cm and a potential forcentimetre accuracy. It also verifies validity by testing the obtained pose estimation live in thecamera system. The paper concludes that the method has potential for higher accuracy notobtained in our experiment due to several factors. Further work would focus on enlarging themarkers and widening the distance between the markers.
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Dokur, Omkar. "Embedded System Design of a Real-time Parking Guidance System." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5939.
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The primary objective of this work is to design a parking guidance system to reliably detect entering/exiting vehicles to a parking garage in a cost-efficient manner. Existing solutions (inductive loops, RFID based systems, and video image processors) at shopping malls, universities, airports etc., are expensive due to high installation and maintenance costs. There is a need for a parking guidance system that is reliable, accurate, and cost-effective. The proposed parking guidance system is designed to optimize the use of parking spaces and to reduce wait times. Based on a literature review we identify that the ultrasonic sensor is suitable to detect an entering/exiting vehicle. Initial experiments were performed to test the sensor using an Arduino based embedded system. Detection logic was then developed to identify a car after analyzing the initial test results. This logic was extended to trigger a camera to take an image of the vehicle for validation purposes. This system consists of Arduino, ultrasonic sensor, and a temperature sensor. It was installed and tested in Richard Beard Garage at the University of South Florida for five days. The test results of each trial are provided and average error for all the trials is calculated. The error cases occur due to golf carts, straddling cars on both entry/exit lanes, and people walking under the sensor. The average error of the system is 5.36% over five days (120 hrs). The estimated cost for one detector per lane is approximately $30.
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Beitman, Bruce A. "Dog Smart Vest Microprocessing." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1331144297.
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Stenbrunn, Alf, and Theodor Lindquist. "Hosting a building management system on a smart network camera: On the development of an IoT system." Thesis, Malmö högskola, Fakulteten för teknik och samhälle (TS), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20517.
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The Internet of Things (IoT) is an umbrella term for smart things connected to the Internet. Connected sensors may be used to the benefit of smart building management systems. This thesis describes the development of a sensor based building management system prototype, lightweight enough to run on a single network camera. The focus of the research was investigating if the system prototype was scalable, and capable of storing and analyzing data gathered from a large amount of sensors relevant to the field of building management. The prototype was developed through a five-stage systems development process, and evaluated using simulations and case studies. The finished prototype was able to gather and store data from a few hundred real-time sensors using limited hardware. Tests showed that the network camera should be capable of managing at least 100 sensors. The system itself is scalable with the use of more powerful hardware. However, using a distributed architecture would be preferable if more sensors are required. This could be achieved by creating a distributed network of cameras, where each camera manages its own set of sensors. This could both increase scalability and make the system more robust and reliable.
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Mavuduru, RajaGanapathiNandan, and Vikas Reddy Nallamilli. "Asset Condition Monitoring System : Using IoT and Embedded Technologies." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-18969.
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Global logistics market is expected to reach US$15.5 trillion by 2023 but many companies loss billions of dollars because of improper handling, theft and tracking problems. Especially when high value goods are transported there is a need to monitor their condition because they can be affected by the environmental changes that might be harmful or due to any dangerous mechanical conditions during transportation. Real time condition monitoring applications serve the purpose of providing alerts, analytics and reports of these harmful or dangerous conditions to ensure that goods are transported without any damage or with minimal damage. This thesis considers how to combine software and hardware solution to monitor different conditions and report during transportation. This report focusses on designing and testing the device for real time condition monitoring of consumer goods package during transportation. The proposed device, called Asset Condition Monitoring System, uses FTP protocol to transfer the GPS information along with monitored information through different sensors as an event over a GSM network to a server. The design can be adapted to any type of product. The prototype developed is equipped with different sensors that assess the environmental conditions along with some of mechanical aspects of the package throughout the transit. The device is tested in a real time environment and provides information on the possible events that might compromise the integrity of the package. The system enables the customer to assess the quality of the package. The design is based on agile method in a user driven framework. The thesis design, model and tests the condition monitoring system according to the requirements and constraints, which can be different to different assets while considering packaging and mode of transportation. For this project, Seagate Hard Drives are considered as an asset to monitor.
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Jazavac, Nedim, and Hikmat Tatari. "IoT-based air pollution monitoring system for smart villages." Thesis, Högskolan Kristianstad, Fakulteten för naturvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-21952.
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Air pollution is a global issue which has negative impacts not only on the environment but also on human health. Therefore, it is important to design and implement systems to allow cities and villages to monitor air quality so that they take the required actions to maintain a good air quality in the city/village. Since IoT facilitates implementing efficient monitoring systems, many IoT systems have been proposed to monitor air pollution. In this paper, we review different IoT-based systems to monitor air quality. In addition, we do an experiment where we propose and evaluate our system to monitor air pollution in a smart village, Veberöd, utilizing the LoRaWAN and the IoT platform, Yggio, which is already used in the village. Our proposed system is used to monitor temperature, humidity, pressure, PM1, PM2.5, PM10, CO2, and CO. As a result of our experiment, we found that the data received by Yggio was encoded, and Yggio did not provide the decoding functionality to decode the data sent from our devices. Therefore, another IoT platforms were used to decode, visualize, and analyse the data. The results of the experiments shows that as far as PM1, PM2.5, PM10, and CO are concerned, the air quality in the village is good. The results also showed that some LoRaWAN messages were lost and never received on Yggio.
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Das, Piyali. "Smart Shoe for Remote Monitoring of Parkinson’s Patients." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1445342741.
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Strapina, Tomáš. "Návrh kamerového systému." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229959.
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Rudd, Clive. "Energialstring för drivande av smart enhet utan batterier : Design av ett energialstrande system för smart sko genom piezoelektronik och solceller." Thesis, KTH, Hälsoinformatik och logistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-260359.
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Projektet beskriver ett tillvägagångssätt för att alstra energi genom solceller och piezoelektronik. Ett kretskortsbaserat system designades som utnyttjade superkondensatorer som lagringsenhet. Planen var att integrera systemet i en sko. Genom denna teknik kan man då substituera eller minimera batteriladdningen för smarta enheter eller mindre anordningar. Det önskvärda resultatet med projektet var att se om det gick att koppla detta system till en mikrokontroller som kunde drivas på låg spänning. Rapporten fick ett positivt resultat med en konstant utspänning på 1.8 volt som kunde driva en mikrokontroller. Dock tog det lång tid för superkondensatorerna att laddas upp på grund av den impedans som fanns i systemet. Aktiviteter som utnyttjar detta system kommer att påverka uppladdningens resultat. Detta gör kretsen optimal för aktiviteter som involverar rörelse och sol, såsom hiking.The past couple of decades gave rise to smartphones, smart watches, and smart homes. Now researchers are looking for ways to make smart clothing. One use case of smart clothing is smart shoes which can give some very useful sensed information especially in the sports industry and healthcare. Such sensed data include temperature, distance and calories, fall detection and many more. This application scenario can be designed to be battery free if we make use of the human motion and solar power. Many research papers exist which present how to exploit swing and shock excitations from the shoes to harvest energy. In this project this energy combined with solar energy will be used to power a low driven MCU. I design a pcb which include solar panels and piezoelectric modules to store the energy in supercapacitors. The goal is to integrate this pcb in a shoe, meaning that it has to have a small size and low power. The results of the project showed that a constant voltage at 1.8 volt could be achieved however recharge time is a factor to take into consideration. The system showed positive results for activities including movements and sun such as hiking.
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Knight, Joseph T. "Optical Communication (OpCom) using Visible Light Communication (VLC) to Securely Configure Embedded Systems." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1553618192441296.
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Eldh, Ida. "Navigation and informational architecture in smart electrical testing and diagnostic devices." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-204583.
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This degree project begins with a general introduction of the topic embedded systems in electrical testing and diagnostic devices in industries within the field of human-computer interaction. Then it continues with a deeper view of the problem area and the specific products which are in focus of this project. The company which the study is carried out in, produces and develops many types of test equipment (in a more generalized term called smart electrical testing and diagnostic devices) to the electrical supply industry. The importance of a usable user-interface is greater today than several years ago as the competition between companies include not only technical performance but also usability [4]. Therefore it is highly important to design a user-interface and navigation structure to combine a company’s all products and create a sense of recognition within them. A high level of recognition is in this case, a userinterface and a navigation structure that are recognizable and understandable when the end-user interacts with different products. The information architecture and user-interface design is not very often prioritized in a company as the budget is often much greater for technology than it is for information architecture. Prior the information architecture was more about technology but today it is about system information and content [8]. In this study, three methods are used to make an attempt to collect data to answer and discuss the research question “Is it possible to design a homogenous navigation structure in electrical testing and diagnostic devices for different end-user types?” This study shows that it is very difficult to get a straight forward answer to how a sustainable and homogeneous information architecture and navigation structure for smart electrical testing and diagnostic devices should be designed. Although, the results could give a substantial input and information towards a common userinterface platform and act as guidelines for the development of products.Den här uppsatsen är en fördjupning i området människa-dator interaktion och användbarhet och börjar med en generell introduktion om ämnet inbyggda system som används i elektriska test- och verifieringsverktyg i industrin. Fortsättningsvis beskrivs en problemformulering och en förklaring av de produkter som är i fokus i denna studie. Företaget som studien är utförd hos utvecklar och tillverkar olika typer av provutrustning för elkraftsbranschen. Sådan mätutrustning ingår i begreppet intelligenta elektriska test- och verifieringsverktyg och hanteras med hjälp av inbyggda pekskärmar. Att ha ett användarbart grafiskt gränssnitt är viktigare idag än det var för många år sedan, detta eftersom företag konkurrerar med användbarhet i produkter och inte enbart med teknisk prestanda [4]. Därför är det viktigt att designa ett användargränssnitt och navigationsstruktur för att sammanföra ett företags alla produkter och skapa en känsla av igenkänning mellan dem. Ett bra mått på igenkänningsfaktorn är i det här fallet ett användargränssnitt och en navigationsstruktur som är igenkänningsbara och förstådda när slutanvändaren interagerar med olika typer av produkter. Informationsarkitektur och användardesign är inte alltid prioriterat hos ett industriellt företag då budgeten för tekniken är långt större än för användardesignen. Tidigare handlade informationsarkitektur mer om teknik, men nuförtiden är det mer om systeminformation och dess innehåll [8]. I den här studien har tre metoder använts för att samla data till och besvara frågan ”Är det möjligt att designa en homogen navigationsstruktur till olika typer av slutanvändare av elektriska test- och verifieringsverktyg?” Den här studien visar att det är svårt att erhålla ett rättframt och entydigt svar på ämnesområdet hur man designar en hållbar och homogen informations- och navigationsstruktur för intelligenta elektriska mätutrustningar. Studien påvisar också att en mängd information kan inhämtas genom att studera användbarhet med hjälp av olika testmetoder. Allt detta i syfte att ge en plattform till utvecklarna som kan agera grund för deras utvecklingsarbete med gränssnittet.
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Hallberg, Anders, and Jonathan Lindberg. "ATT UTVECKLA EN KRETSKORTSPROTOTYP : UTVECKLING AV EN SMART PILLERDOSA." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264199.
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Allt fler människor är beroende av medicinering för sin överlevnad. Dessa hittas främst i de äldre åldersgrupperna. Många av dessa tar medicin dagligen och bördan av medicinering är påtaglig. På grund av deras problematik skapas en oerhörd stress i samband med medicinering eftersom dessa människor har särskilt svårt att minnas när den ska intas, vilken dos, men också vilken medicin. En del behöver ta medicin så ofta som 8 ggr på en dag.Dessa människor behandlas av läkare. Läkare bedömer medicineringens verkningsgrad baserat på patientens förmåga och vilja att återge korrekt information medicineringens följsamhet. Allt för ofta återger patienten fel information.Vi har fått i uppgift att vidareutveckla en prototyp för en ”smart” pillerdosa vars mål är att förbättra patientens upplevelse av medicinering samt ge läkaren ett pålitligt och säkert sätt att följa sina patienters följsamhet till medicinering.Vi har vidareutvecklat en tidigare framtagen prototyp genom att utveckla en ny prototyp som implementerar alla önskvärda funktioner på ett måttanpassat kretskort.Fördelarna med en speciellt framtagen kretskortsprototyp gentemot en modulbaserad prototyp undersöks med avseende på storleksförminskning, energieffektivisering samt kostnadseffektivisering.Ett lämpligt tillvägagångsätt för att utveckla en kretskortsprototyp, resultatet av undersökning samt rekommendationer för vidareutveckling avhandlas och presenteras i rapporten.En kretskortsprototyp enligt angivna specifikationer utvecklades på utsatt tid. Undersökningarna visade att storleksförminskning, energieffektivisering samt kostnadseffektivisering kunde uppnås.More and more people are dependent on medication for their survival. These are mainly found in older age groups. Many of these are medicated daily and the burden of medication is noticeable. Because of their problems, enormous stress is associated with medication because it is particularly difficult to remember when it is to be taken, which dose, but also which medicine. Some need to take medicine as often as eight times in one day.These people are treated by doctors. Doctors assess the effectiveness of medication based on the patient's ability and willingness to recall accurate information regarding their compliance with medication. All too often, the patient recalls wrongful information.We have been given the task of further developing a prototype for a "smart" pillbox whose goal is to improve the patient's experience in medication and give the doctor a reliable and safe way to follow the patients' compliance with medication.We have further developed a previous prototype by creating a new prototype that implements all the desired features on a customized circuit board.The advantages of a specially developed circuit board prototype against a modular prototype are investigated regarding size reduction, energy efficiency and cost efficiency.A suitable approach for developing a circuit board prototype, the results of the investigation and recommendations for further development are discussed and presented in the report.A circuit board prototype according to the stated specifications was successfully developed in the specified timeframe. The investigation showed that greater sizereduction, energy-efficiency and cost-efficiency were possible to achieve.
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Söldner, Constantin, Frank Danzinger, Angela Roth, and Kathrin Möslein. "Open Innovation by Opening Embedded Systems." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-100980.
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1 INTRODUCTION
With the increasing capabilities of today’s smart phones, the demand of consumers for new applications has risen dramatically. By opening up these smart phones and providing third parties the opportunity to develop “apps” for their systems, producers like Apple and platform owners like Google can offer much more value to their customers. As smart phones are one kind of embedded systems (ES), the question arises if similar development can also take place in other kinds of embedded systems. ES, consisting of hardware and software, are embedded in a device to realize a specific function, in contrast to personal computers, which serve multiple purposes [4,30]. The notion of incorporating external actors in the innovation process has been coined open innovation which has become increasingly popular in research and practice since Chesbrough introduced the term in 2003 [12]. By opening up their innovation processes for external actors, firms could benefit from internal as well as from external ideas. In this paper, the notion of open innovation will be explored in the context of ES. The case of ES is particularly interesting, as it requires not only the opening of innovation processes, but also the opening of the embedded system itself. Some of these platforms are opened only to a small degree like Apple’s iPhone, in order to enable others to create new applications for it. Similar developments also take place for example in the automotive software domain, especially concerning infotainment systems. However, most kinds of ES have been spared out by this development until now. As more than 98% of all chips manufactured are used for ES [10] and high-performing computer chips are getting cheaper [38], opening considerations could also prove valuable for a large number of other application domains. However, opening up innovation processes in the context of ES is challenging from both an organizational and technical perspective. First of all, embedded systems are subject to a variety of constraints in contrast to multi-purpose computing devices, like realtime and security constraints or costs and resource constraints. Second, ES are quite diverse both in their composition and in terms on their requirements. In this paper, we want to explore, how the different properties of embedded systems influence possible open innovation processes. This will be done by drawing on to the characteristics of firms implementing the three core open innovation processes suggested by Gassmann and Enkel (2004) [15] and conceptually explaining how the characteristics of ES enable or hinder open innovation processes. As a result, a classification of the OI processes in terms of ES characteristics is provided.
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Corzani, Andrea. "Progettazione e realizzazione di uno smart distributed system per il controllo degli accessi in ambito aziendale." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7980/.
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Il lavoro svolto è dedicato alla realizzazione ed implementazione di un sistema distribuito "smart" per il controllo degli accessi. Il progetto sviluppato è inquadrato nel contesto di "SPOT Software", che necessita di migliorare il processo aziendale di controllo accessi e gestione presenze al fine di aumentarne usabilità ed efficienza.
Saranno affrontate in generale le tematiche di Internet of Things, Smart Building, Smart City e sistemi embedded, approfondendo il ruolo delle tecnologie di comunicazione NFC e BLE, al centro di questo lavoro. Successivamente sarà discussa la progettazione di ognuno dei tre nodi del sistema, motivando le scelte tecnologiche e progettuali: Web application, Smart device e Smartphone app.
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Vizcarra, Christopher, Gabriel Medina, and Alfredo Barrientos. "Implementation of a Fashion Virtual Assistant with the Use of a Kinect v2 Camera and Image Processing." Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/653792.
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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.This article is about the problem and development of a fashion virtual assistant proposed by using a Kinect v2 camera and image processing, for fashion retail stores. It comes up mainly as a response to the inability of providing unique experiences during the shopping process through the use of diverse devices. Because of this, similar virtual assistant solutions, oriented to provide clothing recommendations, were analyzed to be able to provide software that could give a more personalized suggestion for the users based on their physical characteristics.
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Čechmánek, Martin. "Brána inteligentní domácnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2015. http://www.nusl.cz/ntk/nusl-264959.
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In area of Smart-home control, there are requirements for miniaturisation, security and advanced control logic of individual member of system at present. One of the challenges is the way of data collecting from terminal nodes and data processing, including their distribution to the others nodes of Smart-home. The goal of this thesis is to design and to produce Smart-home control node, which will be a gateway between sensoric net and database and will be developed and produced on embedded system with speci c HW boards. Functionality of this gateway should include error states, e.g. should cache sensor messages when the connection between gateway and server interrupts, or take care about time synchronising. The thesis describes theoretical side of gateway design and also practical side of programming and producing SW for the gateway in Smart-home system.
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Paiva, Jailton Carlos de. "e-Pontos: Uma solu??o embarcada de automa??o comercial aplicada a clubes de fidelidade baseado em tecnologia RFID e esmart card." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15440.
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Previous issue date: 2012-07-27In practically all vertical markets and in every region of the planet, loyalty marketers have adopted the tactic of recognition and reward to identify, maintain and increase the yield of their customers. Several strategies have been adopted by companies, and the most popular among them is the loyalty program, which displays a loyalty club to manage these rewards. But the problem with loyalty programs is that customer identification and transfer of loyalty points are made in a semiautomatic. Aiming at this, this paper presents a master's embedded business automation solution called e-Points. The goal of e-Points is munir clubs allegiances with fully automated tooling technology to identify customers directly at the point of sales, ensuring greater control over the loyalty of associate members. For this, we developed a hardware platform with embedded system and RFID technology to be used in PCs tenant, a smart card to accumulate points with every purchase and a web server, which will provide services of interest to retailers and customers membership to the club
Em praticamente todos os mercados verticais e em cada regi?o do planeta, os comerciantes de fidelidade adotaram a t?tica de reconhecimento e recompensa para identificar, manter e aumentar o rendimento de seus clientes. V?rias estrat?gias t?m sido adotadas pelas empresas, e a mais popular entre elas ? o programa de fidelidade, que exibe um clube de fidelidade para gerenciar essas recompensas. Mas o problema com os programas de fidelidade ? que a identifica??o dos clientes e a transmiss?o dos pontos de fidelidade s?o feitas de forma semiautom?tica. Visando isto, o presente trabalho de mestrado apresenta uma solu??o embarcada de automa??o comercial intitulada e-Pontos. O objetivo do e-Pontos ? munir os clubes de fidelidades com ferramental tecnol?gico totalmente automatizado para identificar os clientes diretamente nos pontos de vendas, garantindo um maior controle dos pontos de fidelidade dos membros associados. Para isso, foi desenvolvida uma plataforma de hardware com sistema embarcado e tecnologia RFID que ser? utilizada nos PCs dos lojistas, um smart card para acumular os pontos a cada compra e um servidor web, o qual disponibilizar? servi?os de interesse para os lojistas e os clientes conveniado ao clube
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Nordberg, Emil, and Lucas Sjödahl. "Implementation of Video-based Person Tracking in a Drone System." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296633.
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Technological instruments are used in sports to record and analyze data of performing athletes, in order to improve techniques and increase competitiveness. A method to allow for recording of data of a moving subject is by usage of a depth camera mounted on a drone that can track and follow a subject. The objective was to develop a drone system that was capable of autonomous operation based on follow-me mode. The original prototype lacked required hardware for reliable orientation in environments with varying air-pressure, and software for a follow-me mode-system. Height above ground was measured using a downward facing depth sensor and a 3D image of the subject was generated by a depth camera. The data was then used by the drone to navigate through the environment. Overall performance of the height adjustment would be sufficient to allow for autonomous operation according to test results. Testing of the follow-me mode showed that the current configuration was not capable of retaining a sufficiently consistent position relative to the subject, hence high video quality was not achieved. However, it gave a positive indication that autonomous operation based on a depth camera is possible. The concept has a high potential and if the system would be further developed it could allow athletes to record and analyze data in order to improve techniques and increase competitiveness.Teknologiska instrument används inom sport för att samla in och analysera data om idrottare, detta för att kunna förbättra teknik och öka prestationsförmåga. En metod för att kunna samla in data från ett rörligt subjekt är genom användandet av en djupkamera monterad på en drönare som kan spåra och följa efter ett subjekt. Målet var att utveckla ett drönarsystem som är kapabel till autonom drift baserat på ett “följ mig-läge” (från engelskans follow-me mode). Den ursprungliga modellen saknade hårdvara som krävs för en pålitlig orientering i miljöer med varierande lufttryck samt mjukvara för följ mig-läge. Höjd över markytan mättes med en nedåtriktad djupsensor och en 3D-bild av ett subjekt genererades av en djupkamera. Datan användes sedan av drönaren för navigation i omgivningen. Övergripande prestandan för höjdjusteringen skulle vara tillräcklig för att möjliggöra autonom drift enligt testresultat. Testning av följ mig-läget visade att aktuell konfiguration ej är kapabel till att erhålla en tillräckligt konsekvent position relaterat till subjektet, därav var hög video kvalite ej uppnåelig. Däremot gavs en positiv indikation på att autonom drönarnavigering kan baseras på ett system med djupkamera. Konceptet har en hög potential och vid vidare utveckling skulle det kunna möjliggöra för idrottare att kunna samla in och analysera data för att kunna förbättra teknik och öka prestationsförmåga.
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Yang, Can. "Adaptive Sensor : Exploring the use of dynamic role allocation based on interesting to detect blood and tumors in a smart pill." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42626.
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For intelligent systems, the ability to adapt a sensor's sensing capabilities offers promise for reducing numbers, weight, and volume of sensors required. This basic idea is in line with a recent assertion by the well-known roboticist Rodney Brooks, that versatile robots could be used to perform various tasks instead of requiring a large number of specialized robots.In the current work, we consider the concept of a "smart" sensor which could dynamically adapt itself to replace multiple static sensors--within the application area of ingestible smart pills, where small sensors might be required to detect problems such as bleeding or tumours.\\ Simulations were used to evaluate some basic strategies for how to adapt the sensor and their effectiveness was compared; as well, a hardware prototype using LEDs to indicate system switching was prepared.
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Yeoman, Christina. "FPGA TO POWER SYSTEM THEORIZATION FOR A FAULT LOCATION AND SPECIFICATION ALGORITHM." UKnowledge, 2013. http://uknowledge.uky.edu/ece_etds/21.
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Fault detection and location algorithms have allowed for the power industry to alter the power grid from the traditional model to becoming a smart grid. This thesis implements an already established algorithm for detecting faults, as well as an impedance-based algorithm for detecting where on the line the fault has occurred and develops a smart algorithm for future HDL conversion using Simulink. Using the algorithms, the ways in which this implementation can be used to create a smarter grid are the fundamental basis for this research. Simulink was used to create a two-bus power system, create environment variables, and then Matlab was used to program the algorithm such that it could be FPGA-implementable, where the ways in which one can retrieve the data from a power line has been theorized. This novel approach to creating a smarter grid was theorized and created such that real-world applications may be further implemented in the future.
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Lima, David Henrique de Souza. "Um sistema oportunista para detecção de vagas de estacionamento utilizando placas inteligentes acopladas em câmeras de segurança." Universidade Federal de Alagoas, 2014. http://www.repositorio.ufal.br/handle/riufal/1610.
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This work aims to present a system for parking spaces detection using opportunistic cameras. The central idea is to use images from cameras that are already installed to identify possible parking spaces. It is important to highlight that legal, privacy and security issues in using cameras for parking detection is out of scope. This work addressed the problem of how to use cameras opportunistically to detect free parking spaces. The idea for the solution is that by means of embedded systems, adapted them to the cameras already installed in the city, we can successfully design the detection of vacancies. The main objective of this work is to present the feasibility of using embedded systems to detect parking spaces, for such, it is proposed three image processing techniques to solve the problem and as main contribution it is presented a distributed architecture for use of cameras opportunistically to obtain the images. The major contributions of this work were the development of three image processing techniques for vehicle detection; a distributed and opportunistic architecture proposal using cameras to detect parking spaces; comparative evaluation of the proposed architecture and two other existing architectures; a routing algorithm for routing requests in the Embedded architecture Initially, it was evaluated three proposed image processing techniques to detect parking spaces, the best technique was the Dilation after Border Detection with a success rate close to 100%, this evaluation was performed to choose the technique used in the rest of this work. After choose the best technique, it was performed an experiment using the proposed architecture and two others that are used for comparison, the result of the experiment demonstrated the feasibility of use the Embedded architecture. To conduct large experiments is a complex task, because of this a simulation was developed using the network simulator Sinalgo to analyze four variables in the system (communication radius, number of auxiliary cameras, amount of simultaneous requests and percentage of failed cameras). The simulation result shows that the factors with the greatest influence on the variation of the average times of the requests are the size of the communication radius and the amount of auxiliary cameras.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Este trabalho apresenta um sistema para detecção de vagas de estacionamento utilizando câmeras de forma oportunista. A ideia central é a utilização de imagens provenientes de câmeras já instaladas para verificar a existência de vagas de estacionamento. É importante ressaltar que questões legais, de segurança e privacidade no uso de câmeras para detecção de vagas de estacionamento estão fora do escopo desta dissertação. Neste trabalho é abordado o problema de como utilizar câmeras de forma oportunista para detecção de vagas de estacionamento. A ideia para a solução é que por intermédio de sistemas embarcados, adaptado-os às câmeras já instaladas na cidade, podemos conceber satisfatoriamente a detecção de vagas. O objetivo principal deste trabalho é apresentar a viabilidade da utilização de sistemas embarcados para detecção de vagas de estacionamento. Para tal são propostas três técnicas de processamento de imagens para resolução do problema e como principal contribuição temos a apresentação de uma arquitetura distribuída para utilização de câmeras de forma oportunista para obtenção das imagens. As principais contribuições deste trabalho são a avaliação de três técnicas de processamento de imagens para detecção de veículos; proposta de uma arquitetura distribuída e oportunista utilizando câmeras para detecção de vagas de estacionamento; uma avaliação comparativa entre a arquitetura proposta e outras duas arquiteturas existentes; e um algoritmo de roteamento para encaminhamento das requisições na arquitetura Embutida. Inicialmente foram avaliadas três técnicas propostas de processamento de imagens para detecção de vagas de estacionamento, sendo a melhor delas a Dilatação após Detecção de Borda com uma eficácia de aproximadamente 100%. Essa avaliação serviu para escolhermos a técnica usada no restante do trabalho. Após a escolha da técnica, realizamos um experimento utilizando a arquitetura proposta e outras duas que serviram para comparação. O resultado do experimento demonstrou a viabilidade da utilização da arquitetura Embutida. Como realizar experimentos de grande porte é uma tarefa complexa, foi desenvolvida uma simulação utilizando o simulador de redes Sinalgo para analisar quatro variáveis no sistema (raio de comunicação, quantidade de câmeras auxiliares, quantidade de requisições simultâneas e percentual de falhas nas câmeras). Com o resultado da simulação pode-se concluir que os fatores com maior influência na variação dos tempos médios das requisições são o tamanho do raio de comunicação e a quantidade de câmeras auxiliares.
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Damborský, Roman. "Připojování vestavěných systémů k intranetu." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2009. http://www.nusl.cz/ntk/nusl-235499.
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This thesis studies possibilities of connecting embedded systems to intranet. Available technologies and resources usable for control and capturing of data on remote sensors are considered. It goes into IEEE 1451.1 standard, which defines abstract interface of transducer for sensors connecting, while avoiding specification of concrete implementation of communication between these entities. Design and implementation of application with architecture based on IEEE 1451.1 standard takes also place in this thesis.
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Bellini, Federico. "Il sistema Trauma Tracker - individuazione e analisi di parametri vitali acquisiti da monitor multiparametrico." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11898/.
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Lo scopo della presente tesi è lo studio e la progettazione di un sistema Hands-Free applicato in ambito Healthcare, volto ad aiutare il personale sanitario nello svolgimento delle mansioni lavorative. Il progetto, denominato Trauma Tracker, ha avuto origine grazie alla collaborazione con medici ed infermieri dell'ospedale Maurizio Bufalini di Cesena. In particolare, il sistema in prodotto si prende carico della compilazione del report finale contenente tutte le operazioni svolte sui pazienti nell'ambito del Pronto Soccorso, riducendo così notevolmente le possibilità di errori dovuti a fattori umani.
Durante le fasi di sviluppo e progettazione sono state aggiunte ulteriori funzionalità al sistema, fino a farlo diventare vero e proprio oggetto incantato, in grado di esibire proprietà finora inimmaginabili in questo campo di applicazione.
Trauma Tracker, almeno in queste prime fasi, non si propone come uno strumento immediatamente utilizzabile sul campo e pronto ad affiancare i medici, poiché necessiterebbe subito di qualità come robustezza ed affidabilità a livelli estremamente elevati. Per questo motivo il progetto è stato trattato come un "Proof of Concept", ossia un prototipo che ha lo scopo di dimostrare la fattibilità di tale sistema nella realtà, e di verificarne l'utilità una volta applicato in uno scenario concreto. L'argomento trattato ha quindi una grande importanza, poiché getta le basi di una tecnologia che un giorno potrà aiutare medici ed infermieri a svolgere al meglio l'impegnativo compito di salvare vite.
In questa tesi, è stato approfondito in particolare il sottosistema utilizzato per il riconoscimento dei parametri vitali dal monitor multi-parametrico posto nei diversi reparti ospedalieri. Esso ha richiesto lunghe fasi di implementazione e collaudo per ottenere dei risultati soddisfacenti, che alla fine sono stati raggiunti.
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Azmat, Shoaib. "Multilayer background modeling under occlusions for spatio-temporal scene analysis." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54005.
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This dissertation presents an efficient multilayer background modeling approach to distinguish among midground objects, the objects whose existence occurs over varying time scales between the extremes of short-term ephemeral appearances (foreground) and long-term stationary persistences (background). Traditional background modeling separates a given scene into foreground and background regions. However, the real world can be much more complex than this simple classification, and object appearance events often occur over varying time scales. There are situations in which objects appear on the scene at different points in time and become stationary; these objects can get occluded by one another, and can change positions or be removed from the scene. Inability to deal with such scenarios involving midground objects results in errors, such as ghost objects, miss-detection of occluding objects, aliasing caused by the objects that have left the scene but are not removed from the model, and new objects’ detection when existing objects are displaced. Modeling temporal layers of multiple objects allows us to overcome these errors, and enables the surveillance and summarization of scenes containing multiple midground objects.
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Kovacs, Emilie, and Joel Abrahamsson. "Videoströmning från trådlöskamera." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177404.
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Denna rapport beskriver utvecklingen av en referensdesign för en WiFi-modul från före- taget H&D Wireless. Referensdesignen skulle vara en kamera som kan skicka videodata trådlöst via den nyss nämnda WiFi-modulen. Projektet genomfördes under våren 2015 på företaget som examensarbete för Högskoleingenjörsprogrammet i elektronik och da- torteknik på KTH. Projektet delades upp i tre olika faser: en förstudiefas, en genomförbarhetsfas och en avslutande fas. I förstudiefasen gjordes en litteraturstudie som behandlade vanliga funktioner hos ex- isterande nätverkskameror, videokodningstekniker samt en något djupare studie av olika typer av bildsensorer. Förstudiefasen fortsatte med en analys av olika hårdvarulösningar som skulle kunna användas i projektet. I slutet av fasen valdes den hårdvara som skulle användas i projek- tet. Genomförbarhetsfasen gick ut på att ta reda på om den valda lösningen gick att ge- nomföra. I denna fas skedde huvudsakligen mjukvaruutveckling, under vilken testdriven utveckling tillämpades. En videobuffert samt en HTTP-server för videoströmning togs fram i denna fas. I den avslutande fasen färdigställdes projektrapporten och mjukvaruutvecklingen av- slutades. Mjukvaruutvecklingen för den valda videokodaren sköts upp på grund av att den levererades sent i projektet. I projektet användes en Scruminspirerad projektmetod. Projektmetoden upplevdes fungera bra på grund av metodens flexibilitet och påtvingande av tydliga uppgifter. Vid projektets slut kunde inte den trådlösa kameran färdigställas på grund av problem i kommunikationen med videokodaren. Om videokodaren hade kommit tidigare hade detta problem troligtvis hunnit åtgärdas innan projektets slut, men det är osäkert om implementationen hade hunnit färdigställas ändå på grund av den korta tid som fanns tillgänglig. Trots att projektet inte hann färdigställas helt har det gett många nyttiga lärdomar för framtiden.company H&D Wireless. The reference design would be a wireless camera that can send video data wirelessly using the aforementioned WiFi-module. The project was carried out at the company during spring 2015 as a thesis project for the Degree Program in Electronics and Computer Engineering at KTH. The project was divided into three stages: a pilot study stage, a feasibility stage and a concluding stage. A literature study was performed during the pilot study stage, which described common functions in existing network cameras, techniques for video encoding and a slightly deeper study of different types of image sensors. The pilot study stage continued with an analysis of different hardware solutions which could be used in the project. The hardware solution which would be used in the project was chosen at the end of the pilot study stage. The purpose of the feasibility stage was to find out whether the chosen hardware solution would be possible to implement. This stage consisted mainly of software de- velopment, during which test driven development was practiced. A video buffer and a HTTP-server for video streaming was developed in this stage of the project. The project report was finished and the software development was wrapped up during the concluding stage. The development of the software for the chosen video encoder was delayed until the concluding stage because of its late delivery. A Scrum inspired project method was used for this project. The project method was perceived to work well in the project because of its flexibility and demand of clear tasks. The wireless camera could was not finished at the end of the project, because of problems in the communication with the video encoder. The problem could probably have been resolved before the end of the project if the video encoder had arrived earlier. It is not sure if the implementation had been possible to complete anyways because of lack of time. Although the project was not completely finished a lot of valuable knowledge was obtained for future work.
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Lallali, Saliha. "A scalable search engine for the Personal Cloud." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLV009.
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Un nouveau moteur de recherche embarqué conçu pour les objets intelligents. Ces dispositifs sont généralement équipés d'extrêmement de faible quantité de RAM et une grande capacité de stockage Flash NANAD. Pour faire face à ces contraintes matérielles contradictoires, les moteurs de recherche classique privilégient soit la scalabilité en insertion ou la scalabilité en requête, et ne peut pas répondre à ces deux exigences en même temps. En outre, très peu de solutions prennent en charge les suppressions de documents et mises à jour dans ce contexte. nous avons introduit trois principes de conception, à savoir y Write-Once Partitioning, Linear Pipelining and Background Linear Merging, et montrent comment ils peuvent être combinés pour produire un moteur de recherche intégré concilier un niveau élevé d'insertion / de suppression / et des mises à jour. Nous avons mis en place notre moteur de recherche sur une Board de développement ayant un représentant de configuration matérielle pour les objets intelligents et avons mené de vastes expériences en utilisant deux ensembles de données représentatives. Le dispositif expérimental résultats démontrent la scalabilité de l'approche et sa supériorité par rapport à l'état des procédés de l'artA new embedded search engine designed for smart objects. Such devices are generally equipped with extremely low RAM and large Flash storage capacity. To tackle these conflicting hardware constraints, conventional search engines privilege either insertion or query scalability but cannot meet both requirements at the same time. Moreover, very few solutions support document deletions and updates in this context. we introduce three design principles, namely Write-Once Partitioning, Linear Pipelining and Background Linear Merging, and show how they can be combined to produce an embedded search engine reconciling high insert/delete/update rate and query scalability. We have implemented our search engine on a development board having a hardware configuration representative for smart objects and have conducted extensive experiments using two representative datasets. The experimental results demonstrate the scalability of the approach and its superiority compared to state of the art methods
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Björklund, Henrik, and Sebastian Kullengren. "Detektering av hindrat trafikflöde på väg." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232122.
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Antalet vägtrafikanter ökar varje år, och med det ökar trängseln. För att bekämpa detta har undersökningar gjorts på uppkoppling av infrastruktur och användning av sensorer. Sensorer kan användas för att minska trafikköer, genom att till exempel upptäcka stillastående fordon eller föremål på vägen. Detta examensarbete undersöker konceptuellt hur en Light Detection and Ranging-sensor kan användas för att detektera ett hindrat trafikflöde på väg. En prototyp skapas för att undersöka konceptet, som består av en datainsamlingsmodul och en detekteringsapplikation. Genom att jämföra olika insamlad data, avgörs det om trafikflödet är hindrat eller ej. För att möjliggöra detekteringen av trafikflöde nyttjas en servomotor vilket ger datainsamlingsmodulen möjligheten att mäta punkter i ett tvådimensionellt plan. Styrning av motor och insamling av data sker med hjälp av en Arduino Uno. Data behandlas sedan på en persondator för att avgöra om hinder uppstått. Resultaten från tester i olika testmiljöer visar på att datainsamlingsmodul med detekteringsapplikation kan detekterar hindrat trafikflöde och statisk miljö, och med en godtagbar noggrannhet i avståndsmätningarna. Slutsatsen är således att prototypen har duglig funktion för att detektera ett hindrat trafikflöde. Metoderna för att detektera hinder är rudimentära men fungerande för enkla trafikflöden. Testning av mer varierande trafik under längre tidsperioder krävs för att ytterligare verifiera konceptets lämplighet.The number of urban dwellers is increasing, and as a result traffic congestion increases. To combat this, investigations to connect infrastructure are being done, and the use of several different sensors are relevant to this study. Sensors can be used to reduce traffic congestion, for example by detecting stationary vehicles or objects on the road. This graduate work examines the concept of how a Light Detection and Ranging sensor can be used to detect any obstructed traffic flow on roads. A prototype is created to examine the concept, which consists of a data acquisition module and a detection application. By comparing varying collected data, it is determined if traffic flow is obstructed or not. To enable the detection of traffic flow, a servo motor is used to provide the data acquisition module with the ability to measure points in a two-dimensional plane. Control of motor and data collection is done by an Arduino Uno. Data is processed on a personal computer to determine if any obstruction has occurred. The results of the tests in different test environments indicate that the data acquisition module with the detection application can detect blocked traffic flow and static environment, and with an acceptable accuracy in the distance measurements. The conclusion is that the prototype is capable of detecting a blocked traffic flow. The methods for detecting obstacles are rudimentary but effective for simple traffic flows. Testing more varied traffic for longer periods of time is required to further verify the feasibility of the concept
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Výborný, Filip. "Konfigurovatelná vestavná foto/videopast se záznamem dat a samočinnou adaptací na okolí." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2015. http://www.nusl.cz/ntk/nusl-234965.
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This diploma thesis deals with a design and construction of an embeded camera trap with a video recording and night vision support, which is able to self adapt to surroundings. The device is based on the Raspberry Pi platform and configurable by touch screen control with a user-friendly graphical interface. Also the web-application for easy remote administration was developed in Ruby On Rails framework. The camera trap was built and successfully tested under the real conditions. There are also typical application cases and requirements for camera trap construction described in this thesis.
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Fučík, Jan. "Inteligentní řízení domácnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2014. http://www.nusl.cz/ntk/nusl-412897.
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This thesis summarizes the subject of intelligent homes and describes commonly used standards and commercial solutions on the market. The thesis covers the design of a low-cost and easy to use smart home system which can be managed over the internet, uses a genetic algorithm for heating regulation optimization and its central computing unit is a low-cost, embedded device with low power consumption. The functionality of the system is verified on a practical application of heating regulation in a house. The efficacy of the system for energy savings is shown; it is based on measured data statistics.
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Tai, Te-jen, and 戴德仁. "Embedded Smart Home Access Control System." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/k269rd.
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碩士開南大學
資訊學院碩士在職專班
106
This paper utilizes the Raspberry Pi of the IOT (Internet of things) device to develop a low-cost embedded face recognition system and build back-end service, Django Python Web as a management interface for monitoring data. Users can use mobile devices or personal computers to query data in a web-browsing manner. There are two kind of architectures. The first type of architecture must check by RFID reader at first to confirm the identity of the person. Then dynamic captured face picture directly compared to the whole face database. The second one that does not need RFID check, just dynamically captures face picture by the Web Camera. Then the human face be trained, the model is created and the classifier is created. Finally, it processes the face recognition and the alignment similarity. The two flows of architecture that got the final face recognition results will be use as the basis for access control. In the experiment, this paper uses the Adaboost algorithm to locate the face and the SVM for face recognition classifier. The experimental results show that if the light is sufficient and under positive face conditions. The average identification rate can achieved approximately at 90.4%. Keyword: IOT、Face Recognition、Raspberry Pi、OpenCV
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Shun, He Kang, and 康順和. "An Embedded Object Storage System with Smart Functions." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/97017574408044351987.
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碩士南台科技大學
電機工程系
96
There are numbers of inconvenient disadvantages when using traditional file systems. The promotion of network speed and the digitizing of data bring the new era of information technology. Any person can access data with variety and diversity from internet. The trend of large amount of data such as multimedia files is sooner or later eating up the storages, and the management of storages is still a main problem. Therefore, the new technique of object storage is proposed, that overcomes disadvantages of traditional file systems and eases management problems to a profusion of data. For the need of data management, the storages are no longer to be a single purpose for data read/write. An object storage system shifts jobs of file management from the file system to the storage device. The storage device itself maintains the data and therefore relieves burdens of file system. Metadata and data of a file are managed separately by MDS (metadata server) and OSD (object storage device) respectively to increase the IO efficiency. This thesis discusses development status of current object storage systems, and also introduces T10 as well. We analyze an object storage system which is open source and originally developed by Intel. We propose a mechanism of pre-processor and post-processor for file storage according the file attribute. By the mechanism, we implement a smart function to compress text files whenever saving data. The mechanism benefits the object storage system by increasing more usable storage space.
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WANG, YU-HSIAN, and 王育祥. "A Distance Measuring System Using Single CCD Camera Based on Embedded System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/88193127736726008229.
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碩士聖約翰科技大學
電子工程系碩士班
99
Image information is often applied to the distance measurement such as camera measuring and computer vision. In spite of high identification for the camera measuring, it still can not complete real-time image processing, and it also needs the support of the related equipments with high cost. As for the computer vision, two or more cameras are required to cooperate with each other for achieving real-time image processing. Besides, it is difficult to identify if the gray levels are similar between object and back ground. In this thesis, a CCD distance measurement based on embedded system (XScal270) is proposed to complete the pixels-to-distance transformation by the assistance of CCD camera and laser projector. The proposed method not only can achieve real-time distance measurement but also can be applied to the abominable environments that people do not suit.
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Jhang, Jia-Yu, and 張嘉育. "Daytime and Nighttime Flame Detection Technology in Embedded Camera System." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/quytpb.
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碩士朝陽科技大學
資訊工程系
103
The cameras and video surveillance systems are getting popular and ubiquitous. The computing power of the embedded camera system is also increasing with the growth of hardware technology. It enables many image-based functions can be realized in the embedded camera system without any additional hardware, such as personal computer. Intelligent video surveillance (IVS) is an important development direction. An industrial-academic project was funded by Telexper Co. Ltd. to generate the value-added function of IVS in an embedded camera system. In this study, a flame detection technology was developed to detect flame at the daytime or nighttime. Two processes are designed for the flame in color at the daytime and flame in grayscale at the nighttime. The process of the flame detection at the daytime consists of two steps: color filtering and flicker detection. The process of the flame detection at the nighttime consists of three steps: bright area detection, motion detection, and blinking detection. The built-in ambient light sensor of the camera system can be used to determining the execution of the daytime or nighttime flame detection process. Besides, eight sensitivities and three kinds of monitoring areas are designed. All the parameter settings for every sensitivity and monitoring area are also designed to increase the feasibility of the flame detection technology. The experiment results show that the detect time of daytime is about 7~20 seconds and detect time of nighttime is about 5~7 seconds.
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Yang, Kai-Xiang, and 楊凱翔. "Embedded System Design of Image Target Tracking for PTZ camera." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/40004416147769201636.
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碩士國立雲林科技大學
電子工程系
103
In this paper, we present an image target tracking algorithm, and then design its hardware based on PTZ camera and field-programmable gate array (FPGA). Our proposed design can process 1280×720 resolution video sequences and provide accurate image target tracking in real time. In tracking algorithm, an adaptive local edge detection method is presented to extract the edge points of tracking object. In order to enhance the tracking accuracy, neighboring texture clustered feature method is employed to describe the edge points of tracking object. Then, a matching pair statistic is also proposed for analysis so that the algorithm can adapt to the dynamic scene. Since the proposed tracking algorithm is suitable for hardware design, a high efficient hardware architecture is designed and implemented on an FPGA chip. At the working frequency with 48 MHz, the image processing speed by the hardware achieve 390 frames per second. We integrate FPGA, embedded platform, and PTZ camera, to accomplish an image target tracking system. The experimental results demonstrate that the whole system can deal with various complex situations, including scene illumination changes, object deformation, partial occlusion, and complex background.
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Chen, Ren-Hao, and 陳人豪. "Using PTZ Camera to Construct a Smart Video Surveillance System." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/71079936511062199566.
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碩士國立成功大學
電腦與通信工程研究所
96
Due to the fast development of times and people owning more and more riches but the crime rate increases continuously, the safe demand of the public security will be more and more important. Though the America is a powerful country owning the most developed science and technology, it is also mauled heavily in the 911 attack event, hence other countries in the world focus on video tracking technology as the most research topic. The videos of the cameras are shown on one or plenty of the monitors in the traditional surveillance system and it still needs considerable human input to monitor potential threats and trigger warning according to the abnormal behavior. A great deal of cameras are deployed due to the cameras cost are dropped at present and relatively the loading of monitoring operators grows up along with days passing by, hence it may cause a large number of the key frames to be lost. Therefore this paper will propose a smart video surveillance system to obtain this aim of the detecting, monitoring and warning abnormal events dynamically by combining numerous smart functions including the moving object tracking, the moving object locating, the key frames capturing by adjusting various zoom-in values in the different positions, the lost and found strategy of the losing moving object, the entrance management of the pass in and out, the moving trajectory recording in the surveillance space, and the abnormal behavior detection in the warning section. We expect to eliminate the faults of the man-made interference and the damages of the abnormal event as far as possible.
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Chao, Kuo-Liang, and 趙國樑. "The Wireless Home Automation Base on the Embedded IP Camera System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/19442553297972648585.
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碩士國立勤益科技大學
電子工程系
98
This study constructs a wireless home automation system (HAS) based on an indented IP Cam system. Home electronic products and equipment can be wireless controlled by several learnable IR translator modules which are connected to a network router integrating the software and hardware of IP Cam. All commands can be transmitted visually due to the core of the system is composed of IP Cam. This design can not only confirm the results of remote control, but also increase the safety while using the HAS. Several predominant HAS were examined and compared in this study. It is found that most existing HAS needed exclusive control networks. Although some of the control networks can be replaced by power circuits, the exclusive bridge circuits and solutions to overcome the power disturbance are still needed. Therefore, a novel network based on the wide band and wireless network is proposed and validated in this study. Most existing HAS must depend on specialized controllers to communicate with their users. However, most of these specialized controllers cannot satisfy their users in terms of customization, expansibility and portability. Hence, this study develops a new application of IP Cam including the features of electronic maps. This design can substitute the specialized controllers of HAS without increasing hardware. Additionally, this application was transferred to the intelligent mobile phones to validate its performance and preciseness. The test scenario includes the control of lights, curtains, air conditioners, TV, amplifiers, DVD players and projectors.
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Yan, Yu-Hu, and 鄢玉虎. "Development of a Smart Control System with Wireless-Based Android Embedded System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/00767266730559003330.
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碩士國立交通大學
電機學院電機與控制學程
100
In the past decades, the development of smart home appliances had been limited by the current hardware technology. Until the surge of wireless technology and mobile devices in the recent years, smart home appliances have once again caught the attention of the developers. This thesis focuses on the integration of IEEE 802.15.3 (Bluetooth); IEEE802.15.4 and the embedded system to realize a smart lighting system. A lighting control protocol is defined based on the IEEE802.15.4, this protocol includes internet initialization, sub-point requirement to join the network, formation of instruction, etc. A new device can be connected to the server through the SPP (Serial Port Profile) of Bluetooth via an Android cell phone. User can remotely monitor and control the connected devices via the IEEE802.15.4 PAN coordinator. Various new control and sensing devices can be connected to the server and be configured by the user to realize a smart system for lighting, appliances, or security control. A simple TRIAC dimmer with light sensor have been implemented for the demo of the designed network based smart control system.
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Hsueh, Jen-Kai, and 薛任凱. "Design and Implementation of Smart Cloud Monitoring in Embedded System." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/y2d6r6.
Full textAbstract:
碩士義守大學
電機工程學系
104
In this thesis, an embedded system is designed and implemented for cloud monitoring issues. The cloud monitoring system consists of software setup and hardware aspects. An Arduino Yun board is chosen to be used as the platform, and two Pyro-electric InfraRed sensors (PIR sensors) as well as a camera are set for the purpose of monitoring. Once the PIR sensors detect someone close to the system, not only a buzzer will sound audio warning, the camera will take photos, but also the system will sent the photographs to a predefined cloud system which is set by Dropbox and will alert users via email simultaneously. Users can decide to live-stream or to process after receiving the mailed message. In order to show the efficiency of the cloud monitoring system, some experiments are shown at the end of this thesis. According to the experimental results, the cloud monitoring system works well no matter in day and night. Users can remotely control this system and live-stream via cellphones. The requirement for real time of the embedded system can also be guaranteed.
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Hsieh, Ming-Ting, and 謝明廷. "Research of Embedded System for Home Care and Smart Home." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/92970772321734979774.
Full textAbstract:
碩士健行科技大學
電機工程所
101
Thanks to the modern medications, more aging illness and social behavior of the senior citizens have become issues in our worldwide communities. The specific topics of Home-Care and Smart-Home are brought up to be discussed in recent years. For the issue of how to get quality of life, many scholars and researchers have started to do the research on Smart-Home-Care topics. As in the result of the topics, elderly people at home will be able to receive proper medical care and to improve quality of their lives. In this proposal, three embedded systems on SPCE3200-Experimental Platforms, the User, the Smart-Home and the Home-Care Systems are proposed to construct our mentioned Smart-Home-Care System. Among platforms, through short-range wireless communication links them. The ZigBees are used to transfer vital signs of the elderly from the User System to the Home-Care System and also to remote control of the home multimedia appliances of the Smart-Home System. For example, once the irregular vital signals are detected, the User System will issue alerts and notify the Home-Care System, and the Home-Care System will then notify selected Medical-Care Server via Ethernet. The Home-Care System also has equipped with video surveillance, while the System has detected abnormal pictures, vital-sign alerts or environmental failure detection, which is abnormal brightness at home, the Home-Care System will send control instructions to Smart-Home System. In this thesis, the User, the Smart-Home and the Home-Care Systems are integrated to an embedded Smart-Home-Care System for providing a happy and safe environment to elderly people who can enjoy more convenient, secure and healthy life.
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Zhang, Zhe-Wei, and 張哲瑋. "Real-time Pose Evaluation using Dual Camera on Low Cost Embedded System." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/45553230165805561039.
Full textAbstract:
碩士國立臺灣科技大學
電子工程系
105
In recent years, Human-computer interaction becomes a trend. Instead of relying on the input devices such as the button, rocker, and keyboard, moving the body or making a pose can communicate with a computer directly based on cameras. However, human pose evaluation is a huge challenge in computer vision, this technology is usually achieved with high computational demand. In this thesis, we propose a dual-camera based real-time human pose evaluation method, whose demand of computation is lower than recent methods, hence can be implemented on low-cost hardware. First, a moderate quality of disparity map can be generated with low computation by combining the block-matching algorithm and optical flow based restoration process. Then, a segmentation of an object can be obtained by analyzing the histogram of the disparity map and performing peak analysis. Next, we compute the bounding box from the segmentation of the object per frame and apply an inertia model to enhance the continuity of the sequence of bounding boxes. Finally, human pose evaluation can be achieved by processing the bounding box data with three proposed processes: Average Process, Group Comparing Process, Multi-frame Comparing Process. Most of the image processing algorithms in this thesis have been implemented in GPU to reduce the load of CPU. In this study, we used Kinect sensor as our ground truth to compare the performance. The experimental results show that our proposed method is capable of evaluating human poses efficiently, the average score difference between the Correctly-dancing condition and the Incorrectly-dancing condition is 36.1%. In addition, in the comparison between dual-camera and Kinect sensor, the deviation under the Correctly-dancing condition is 2.26% and the deviation under the Incorrectly-dancing condition is 3.57%. It reveals that we can use dual-camera to achieve the same performance as using Kinect when applying the proposed pose evaluation method.