Relevant bibliographies by topics / Wireless sensor , Sensor operating system

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Wireless sensor , Sensor operating system'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Wireless sensor , Sensor operating system"

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Díez-González, Javier, Rubén Álvarez, Natalia Prieto-Fernández, and Hilde Perez. "Local Wireless Sensor Networks Positioning Reliability Under Sensor Failure." Sensors 20, no. 5 (2020): 1426. http://dx.doi.org/10.3390/s20051426.

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Local Positioning Systems are collecting high research interest over the last few years. Its accurate application in high-demanded difficult scenarios has revealed its stability and robustness for autonomous navigation. In this paper, we develop a new sensor deployment methodology to guarantee the system availability in case of a sensor failure of a five-node Time Difference of Arrival (TDOA) localization method. We solve the ambiguity of two possible solutions in the four-sensor TDOA problem in each combination of four nodes of the system by maximizing the distance between the two possible solutions in every target possible location. In addition, we perform a Genetic Algorithm Optimization in order to find an optimized node location with a trade-off between the system behavior under failure and its normal operating condition by means of the Cramer Rao Lower Bound derivation in each possible target location. Results show that the optimization considering sensor failure enhances the average values of the convergence region size and the location accuracy by 31% and 22%, respectively, in case of some malfunction sensors regarding to the non-failure optimization, only suffering a reduction in accuracy of less than 5% under normal operating conditions.
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Lu, Sheng Li, Qing Yun Gao, Yan Yan Tian, and Mei Ling Liu. "Atmospheric Environmental Monitoring System Based on Wireless Sensor Network." Advanced Materials Research 518-523 (May 2012): 1475–78. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1475.

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The atmospheric environmental monitoring system based on wireless sensor network is made up of embedded gateway, sensor nodes and monitoring centre. Sensor node is composed of various sensors meeting the standards for environmental monitoring, ATmega16 microcontroller as a core and ZigBee wireless communication module used to send the acquisition data to the embedded gateway which runs Linux operating system in the S3C2440A embedded microprocessor. Atmospheric environmental monitoring center receives the environmental data uploaded by the embedded gateway and stores them in the database designed with Access 2007, and provides the function as data query based on VC.
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Liu, Yan Ju, and Xin Hua Li. "Study on Application of Wireless Sensor Networking in Environmental Monitoring." Applied Mechanics and Materials 157-158 (February 2012): 1297–300. http://dx.doi.org/10.4028/www.scientific.net/amm.157-158.1297.

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A novel wireless sensor networks is designed with integrating sensors, embedded operating systems and wireless networking technology. The temperature, humidity, light strength and pressure around the sensor could be measured accurately. The collected data by sensor networks are analysed and treated in PC computer via USB interface. LEACH communication protocol was introduced to ZigBee networks in this paper. The node programs were exploited based on IAR System platform to accomplish data collection.
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Kondratov, V. "Metrological Support for Wireless Sensor Systems." Cybernetics and Computer Technologies, no. 1 (March 31, 2020): 83–92. http://dx.doi.org/10.34229/2707-451x.20.1.9.

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The paper identifies twelve problems of metrological reliability of wireless sensor systems that require their solution. The most urgent is the problem of determining the main parameters of the metrological reliability of wireless sensor systems. It is closely related to solving the problem of self-calibration of optical smart sensors that are part of the smart nodes of the system. The task of self-calibration of smart sensors is solved when three basic conditions are met: 1) when creating and using structurally redundant optical sensors designed to implement methods of redundant measurements; 2) when developing LEDs or other highly stable sources of optical radiation, including those with controlled parameters, for any given spectral range of wavelengths; 3) when creating in micro-performance filters on a priori given range of the spectrum of optical sines. The article describes two methods of metrological support for BSS smart sensors, based on the introduction of information redundancy by conducting three clock cycles of measuring physical quantity with a smart sensor, followed by processing the data using an a priori derived algorithm. The disadvantages and advantages of the methods are shown. It is stated that the use of the theory of excess measurements is the only correct way to solve the problem of self-calibration of sensors and measuring instruments. Given the harsh operating conditions of optical smart sensors, it is preferable to manufacture them using high technology. Today, in Ukraine, no one is engaged in a practical solution to the problems of metrological reliability of wireless sensor systems and the solution of the problems of self-calibration of smart sensors.
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Frohlich, Antonio Augusto, and Lucas Francisco Wanner. "Operating System Support for Wireless Sensor Networks." Journal of Computer Science 4, no. 4 (2008): 272–81. http://dx.doi.org/10.3844/jcssp.2008.272.281.

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DO, THU-THUY, DAEYOUNG KIM, TOMAS SANCHEZ LOPEZ, et al. "AN EVOLVABLE OPERATING SYSTEM FOR WIRELESS SENSOR NETWORKS." International Journal of Software Engineering and Knowledge Engineering 15, no. 02 (2005): 265–70. http://dx.doi.org/10.1142/s0218194005002026.

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With low-power consumption, small code and data size, evolvability as design criteria, we develop an evolvable operating system (EOS) for wireless sensor network applications. The EOS provides memory space efficient thread management, collaborative thread communication model and network stack. It also supports power management of microcontroller and radio transceiver, and network wide time synchronization function. Above all, the most important feature is the concept of evolvability with which the operating system itself can be easily configurable and upgradeable.
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Lin, Cong, Lirong Cui, David Coit, and Min Lv. "An approximation method for evaluating the reliability of a dynamic k-out-of-n:F system subjected to cyclic alternating operation conditions." Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability 231, no. 2 (2017): 109–20. http://dx.doi.org/10.1177/1748006x16689541.

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This article extends the finite Markov chain imbedding approach to evaluate the system reliability of a dynamic k-out-of- n:F system operating under two cyclic alternating conditions, and this article presents a method to obtain the optimal replacement interval of the system according to age-based replacement policy. In terms of the “dynamic k-out-of- n:F” model, we regard the system as two distinct k-out-of- n:F systems with different values of k while the system is operating under each condition. We apply the proposed model to analyze the reliability of a wireless sensor network, whose sensors switching into sleep state to save energy and shifting into listen state to detect the information alternatively. We also obtain the optimal replacement interval to redeploy the wireless sensor networks.
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Wei, Qing Jian, Jin Ning, Xi Zhong Lou, Ren Zhi Ma, and Jia Xu. "Software Design for Water Environment Remote Monitoring System Based on Mobile Devices." Applied Mechanics and Materials 58-60 (June 2011): 2027–32. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.2027.

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A mobile remote data monitoring center based on Android operating system is developed for the water environment monitoring system via wireless sensor network (WSN). The monitoring center collects the sensors data from the WSN based on C/S mode. The SQLite is adopted in database module to achieve high memory speed and efficient operation management. Dynamic graphical displays are accomplished to show the topology of the WSN, the state of the nodes and the real-time and historical water environment parameters of the sensor nodes. The experiments show that the software of water environment remote monitoring system, based on mobile devices of Android operating system, can conveniently satisfy the requirements of data collecting and monitoring for water environment monitoring system based on WSN.
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Pieš, Martin, Radovan Hájovský, and Jan Velička. "Wireless Measuring System for Monitoring the Condition of Devices Designed to Protect Line Structures." Sensors 20, no. 9 (2020): 2512. http://dx.doi.org/10.3390/s20092512.

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A large number of rock formations in the Czech Republic and abroad directly threaten to damage objects or traffic along the roads located beneath these formations. For this reason, many such rock formations are stabilized using protective fences or dynamic barriers. There are several special sensors available on the market. However, there is no comprehensive monitoring system, including remote threshold settings, data processing, and alarm conditions. This statement is supported by extensive research in this area as well as information from major geotechnical companies that are interested in such a system and want to include it in their portfolio. The aim of the article is to describe the unique wireless monitoring system used to measure the geotechnical quantities we have developed. The design and implementation of systems used to measure protective fence states with accelerometers and slope shift with load anchor cells are presented. Wireless accelerometric sensors and load anchor cell sensors are proposed for both systems. To transfer data from the accelerometer sensor to a superior system, IQRF® technology is applied for the communication between the wireless nodes and the network coordinator under the IQMESH topology. The article includes a detailed description of the development of the accelerometric wireless sensor node and load anchor cell wireless sensor node. Three case studies are also discussed. The first case study focuses on the data implementation and assessment at a testing polygon at the village of Málkov. The second case study describes the data implementation and an assessment of the measuring system under operating conditions in Zbraslav, a municipality near Prague. The third case study describes the implementation and assessment of data from load anchor cell wireless nodes installed in realistic conditions on a supporting gabion wall next to a road. All communication between the sensors and with the IQMESH network coordinator and database was executed wirelessly. The data were archived in a MySQL database and it provides a data source for the assessment and visualizations using the Grafana SW system.
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Carrara, Michele, Pietro Catania, Giuseppe Lo Re, Marco Ortolani, and Mariangela Vallone. "AN INNOVATIVE SYSTEM FOR VINEYARD MANAGEMENT IN SICILY." Journal of Agricultural Engineering 41, no. 1 (2010): 13. http://dx.doi.org/10.4081/jae.2010.1.13.

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The aim of this study was to monitor the micro-climate of the grapevine in order to detect the adversities of the spring period (especially April and May), while reducing the operating costs of the vineyard, and increasing the overall quality of grapes. For this purpose a Wireless Sensor Network (WSN) was used. Furthermore, a comparison was performed between data measured by the wireless sensors and data provided by the fixed meteorological station of the Regione Siciliana (SIAS).
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Dissertations / Theses on the topic "Wireless sensor , Sensor operating system"

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Famoriyo, Olusola. "THE EVALUATION OF TINYOS WITH WIRELESS SENSOR NODE OPERATING SYSTEMS." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-886.

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Wireless Sensor nodes fall somewhere in between the single application devices that do

not need an operating system, and the more capable, general purpose devices with the

resources to run a traditional embedded operating system. Sensor node operating system

such as TinyOS, Contiki, MantisOS and SOS which is discussed in this paper exhibit

characteristics of both traditional embedded systems and general-purpose operating systems

providing a limited number of common services for application developers linking

software and hardware.

These common services typically include platform support, hardware management of sensors,

radios, and I/O buses and application construction etc. They also provide services

needed by applications which include task coordination, power management, adaptation

to resource constraints, and networking. The evaluation was concentrated on TinyOS

including an analysis on version 1.x and 2.x resource management and flexibility and its

operation with the other wireless sensor node operating systems.

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Breza, Michael. "Bio-inspired tools for a distributed wireless sensor network operating system." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/14404.

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The problem which I address in this thesis is to find a way to organise and manage a network of wireless sensor nodes using a minimal amount of communication. To find a solution I explore the use of Bio-inspired protocols to enable WSN management while maintaining a low communication overhead. Wireless Sensor Networks (WSNs) are loosely coupled distributed systems comprised of low-resource, battery powered sensor nodes. The largest problem with WSN management is that communication is the largest consumer of a sensor node’s energy. WSN management systems need to use as little communication as possible to prolong their operational lifetimes. This is the Wireless Sensor Network Management Problem. This problem is compounded because current WSN management systems glue together unrelated protocols to provide system services causing inter-protocol interference. Bio-inspired protocols provide a good solution because they enable the nodes to self-organise, use local area communication, and can combine their communication in an intelligent way with minimal increase in communication. I present a combined protocol and MAC scheduler to enable multiple service protocols to function in a WSN at the same time without causing inter-protocol interference. The scheduler is throughput optimal as long as the communication requirements of all of the protocols remain within the communication capacity of the network. I show that the scheduler improves a dissemination protocol’s performance by 35%. A bio-inspired synchronisation service is presented which enables wireless sensor nodes to self organise and provide a time service. Evaluation of the protocol shows an 80% saving in communication over similar bio-inspired synchronisation approaches. I then add an information dissemination protocol, without significantly increasing communication. This is achieved through the ability of our bio-inspired algorithms to combine their communication in an intelligent way so that they are able to offer multiple services without requiring a great deal of inter-node communication.
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Liu, Xing. "Hybrid real-time operating system integrated with middleware for resource-constrained wireless sensor nodes." Thesis, Clermont-Ferrand 2, 2014. http://www.theses.fr/2014CLF22472/document.

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Avec les avancées récentes en microélectronique, en traitement numérique et en technologie de communication, les noeuds de réseau de capteurs sans fil (noeud RCSF) deviennent de moins en moins encombrants et coûteux. De ce fait la technologie de RCSF est utilisée dans de larges domaines d’application. Comme les noeuds RCSF sont limités en taille et en coût, ils sont en général équipés d’un petit microcontrôleur de faible puissance de calcul et de mémoire etc. De plus ils sont alimentés par une batterie donc son énergie disponible est limitée. A cause de ces contraintes, la plateforme logicielle d’un RCSF doit consommer peu de mémoire, d’énergie, et doit être efficace en calcul. Toutes ces contraintes rendent les développements de logiciels dédiés au RCSF très compliqués. Aujourd’hui le développement d’un système d’exploitation dédié à la technologie RCSF est un sujet important. En effet avec un système d’exploitation efficient, les ressources matérielles d’une plateforme RCSF peuvent être utilisées efficacement. De plus, un ensemble de services système disponibles permet de simplifier le développement d’une application. Actuellement beaucoup de travaux de recherche ont été menés pour développer des systèmes d’exploitation pour le RCSF tels que TinyOS, Contiki, SOS, openWSN, mantisOS et simpleRTJ. Cependant plusieurs défis restent à relever dans le domaine de système d’exploitation pour le RCSF. Le premier des défis est le développement d’un système d’exploitation temps réel à faible empreinte mémoire dédié au RCSF. Le second défi est de développer un mécanisme permettant d’utiliser efficacement la mémoire et l’énergie disponible d’un RCSF. De plus, comment fournir un développement d’application pour le RCSF reste une question ouverte. Dans cette thèse, un nouveau système d’exploitation hybride, temps réel à énergie efficiente et à faible empreinte mémoire nommé MIROS dédié au RCSF a été développé. Dans MIROS, un ordonnanceur hybride a été adopté ; les deux ordonnanceurs évènementiel et multithread ont été implémentés. Avec cet ordonnanceur hybride, le nombre de threads de MIROS peut être diminué d’une façon importante. En conséquence, les avantages d’un système d’exploitation évènementiel qui consomme peu de ressource mémoire et la performance temps réel d’un système d’exploitation multithread ont été obtenues. De plus, l’allocation dynamique de la mémoire a été aussi réalisée dans MIROS. La technique d’allocation mémoire de MIROS permet l’augmentation de la zone mémoire allouée et le réassemblage des fragments de mémoire. De ce fait, l’allocation de mémoire de MIROS devient plus flexible et la ressource mémoire d’un noeud RCSF peut être utilisée efficacement. Comme l’énergie d’un noeud RCSF est une ressource à forte contrainte, le mécanisme de conservation d’énergie a été implanté dans MIROS. Contrairement aux autres systèmes d’exploitation pour RCSF où la conservation d’énergie a été prise en compte seulement en logiciel, dans MIROS la conservation d’énergie a été prise en compte à la fois en logiciel et en matériel. Enfin, pour fournir un environnement de développement convivial aux utilisateurs, un nouveau intergiciel nommé EMIDE a été développé et intégré dans MIROS. EMIDE permet le découplage d’une application de système. Donc le programme d’application est plus simple et la reprogrammation à distance est plus performante, car seulement les codes de l’application seront reprogrammés. Les évaluations de performance de MIROS montrent que MIROS est un système temps réel à faible empreinte mémoire et efficace pour son exécution. De ce fait, MIROS peut être utilisé dans plusieurs plateformes telles que BTnode, IMote, SenseNode, TelosB et T-Mote Sky. Enfin, MIROS peut être utilisé pour les plateformes RCSF à fortes contraintes de ressources
With the recent advances in microelectronic, computing and communication technologies, wireless sensor network (WSN) nodes have become physically smaller and more inexpensive. As a result, WSN technology has become increasingly popular in widespread application domains. Since WSN nodes are minimized in physical size and cost, they are mostly restricted to platform resources such as processor computation ability, memory resources and energy supply. The constrained platform resources and diverse application requirements make software development on the WSN platform complicated. On the one hand, the software running on the WSN platform should be small in the memory footprint, low in energy consumption and high in execution efficiency. On the other hand, the diverse application development requirements, such as the real-time guarantee and the high reprogramming performance, should be met by the WSN software. The operating system (OS) technology is significant for the WSN proliferation. An outstanding WSN OS can not only utilize the constrained WSN platform resources efficiently, but also serve the WSN applications soundly. Currently, a set of WSN OSes have been developed, such as the TinyOS, the Contiki, the SOS, the openWSN and the mantisOS. However, many OS development challenges still exist, such as the development of a WSN OS which is high in real-time performance yet low in memory footprint; the improvement of the utilization efficiency to the memory and energy resources on the WSN platforms, and the providing of a user-friendly application development environment to the WSN users. In this thesis, a new hybrid, real-time, energy-efficient, memory-efficient, fault-tolerant and user-friendly WSN OS MIROS is developed. MIROS uses the hybrid scheduling to combine the advantages of the event-driven system's low memory consumption and the multithreaded system's high real-time performance. By so doing, the real-time scheduling can be achieved on the severely resource-constrained WSN platforms. In addition to the hybrid scheduling, the dynamic memory allocators are also realized in MIROS. Differing from the other dynamic allocation approaches, the memory heap in MIROS can be extended and the memory fragments in the MIROS can be defragmented. As a result, MIROS allocators become flexible and the memory resources can be utilized more efficiently. Besides the above mechanisms, the energy conservation mechanism is also implemented in MIROS. Different from most other WSN OSes in which the energy resource is conserved only from the software aspect, the energy conservation in MIROS is achieved from both the software aspect and the multi-core hardware aspect. With this conservation mechanism, the energy cost reduced significantly, and the lifetime of the WSN nodes prolonged. Furthermore, MIROS implements the new middleware software EMIDE in order to provide a user-friendly application development environment to the WSN users. With EMIDE, the WSN application space can be decoupled from the low-level system space. Consequently, the application programming can be simplified as the users only need to focus on the application space. Moreover, the application reprogramming performance can be improved as only the application image other than the monolithic image needs to be updated during the reprogramming process. The performance evaluation works to the MIROS prove that MIROS is a real-time OS which has small memory footprint, low energy cost and high execution efficiency. Thus, it is suitable to be used on many WSN platforms including the BTnode, IMote, SenseNode, TelosB, T-Mote Sky, etc. The performance evaluation to EMIDE proves that EMIDE has less memory cost and low energy consumption. Moreover, it supports small-size application code. Therefore, it can be used on the high resource-constrained WSN platforms to provide a user-friendly development environment to the WSN users
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Zhuang, Peng Shang Yi. "Wireless sensor network aided search and rescue in trails." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4626.

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Thesis (M.S.) University of Missouri-Columbia, 2006.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 29, 2007) Includes bibliographical references.
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Skelton, Adam W. "A New Wireless Sensor Node Design for Program Isolation and Power Flexibility." Thesis, University of North Texas, 2009. https://digital.library.unt.edu/ark:/67531/metadc28378/.

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Over-the-air programming systems for wireless sensor networks have drawbacks that stem from fundamental limitations in the hardware used in current sensor nodes. Also, advances in technology make it feasible to use capacitors as the sole energy storage mechanism for sensor nodes using energy harvesting, but most current designs require additional electronics. These two considerations led to the design of a new sensor node. A microcontroller was chosen that meets the Popek and Goldberg virtualization requirements. The hardware design for this new sensor node is presented, as well as a preliminary operating system. The prototypes are tested, and demonstrated to be sustainable with a capacitor and solar panel. The issue of capacitor leakage is considered and measured.
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Le, Trong Nhan. "Global power management system for self-powered autonomous wireless sensor node." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S048/document.

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La quantité d'énergie disponible dans les batteries et le nombre limité de cycles de recharge compliquent singulièrement la conception de réseaux de capteurs sans fil (WSN) autonomes. La récupération d'énergie dans l'environnement direct des nœuds et un stockage d'énergie à base de supercondensateurs sont aujourd'hui considérés comme solutions potentielles pour atteindre une durée de vie du réseau théoriquement infinie. Un gestionnaire d'énergie (PM pour ''Power Manager'') est embarqué dans chaque nœud afin de permettre un fonctionnement en neutralité énergétique (ENO), ce qui veut dire que les énergies récupérées et consommées par un nœud sont équivalentes sur le long terme. Dans cette thèse, nous proposons de nouveaux PMs qui adaptent dynamiquement l'intervalle de réveil des nœuds en fonction de l'énergie récupérée. La faible complexité de nos PMs, leur indépendance vis-à-vis du type de source d'énergie récupérée et leur faible empreinte mémoire facilitent leur implantation sur une plate-forme réelle de réseaux de capteurs sans fil. Par ailleurs, lorsque l'on considère un réseau multi-sauts, une variation trop fréquente de l'intervalle de réveil peut s'avérer pénalisante pour l'établissement de rendez-vous entre les nœuds et risque de fortement dégrader la qualité de services globale. Nous proposons donc un gestionnaire d'énergie (WVR-PM) qui limite autant que possible ces variations et qui permet d'améliorer le débit de près de 60% par rapport aux PMs de l'état de l'art tout en diminuant de 45% l'énergie consommée par une communication réussie
The limited energy and recharge cycles of batteries are crippling the design of autonomous Wireless Sensor Networks (WSNs). To overcome this issue, everlasting harvested energy and supercapacitor-based energy storage are considered as potential solutions to achieve a theoretically infinite lifetime. A Power Manager (PM) is embedded in each WSN node to respect the Energy Neutral Operation condition (ENO), which means harvested energy is equal to consumed energy for a long period. In this thesis, a set of PMs are proposed for energy harvesting WSN nodes to adapt their average consumed energy by changing the wake-up interval according to the available harvested energy. Our PMs are low complexity, independent of energy sources, small memory footprint and therefore, can be easily implemented on a real EH-WSN node. Another issue addressed in this thesis when considering a multi-hop EH-WSN is the effect of wake-up interval variations to the global QoS. Due to its low harvested energy, a relay node is impractical to synchronize with a transmitter if its wake-up interval regularly changes, therefore degrading the global QoS. A new power manager, named Wake-up Variation Reduction power manager (WVR-PM) is proposed to reduce the variations of the wake-up interval. By using WVR-PM, the throughput of a multi-hop EH-WSN can be improved up to 59% compare to state-of-the-art PMs while the average consumed energy for one successful communication is reduced by 45%
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Dunkels, Adam. "Programming Memory-Constrained Networked Embedded Systems. PhD thesis." Doctoral thesis, Västerås : Department of Computer Science and Electronics, Mälardalen University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-173.

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Chis, Andréea. "Méthodes et outils pour la compilation et l'optimisation logicielle des systèmes embarqués sans fil dédiés à des applications." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2012. http://tel.archives-ouvertes.fr/tel-00768830.

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Les réseaux de capteurs communicants sont fortement contraints en ressources: calcul, mémoire et énergie. Dans ce contexte, une attention particulière doit être portée lors de la conception des application, des protocoles de communication et du système d'exploitation qui vont être exécutés sur les plateformes. Le but de cette thèse a été d'adapter les modèles de logiciels utilisés classiquement pour la programmation d'applications au domaine des réseaux de capteurs et de proposer des méthodes et outils permettant de construire une version adaptée du logiciel devant s'exécuter sur les cibles à partir d'un modèle de l'application. Une des composantes qui consomment le plus d'énergie d'un micro-capteur c'est son interface radio. Le comportement d'une couche MAC peut être exprimé comme un automate temporisé avec des états fixes (qui correspondent à des états spécifiques du dispositif physique) ou des états libres (dont le choix de mappage est laissé au programmeur). Le comportement d'un périphérique radio peut lui-même être exprimé comme un automate temporisé composé d'états transitoires (avec durée fixe de l'état) et non transitoires (avec une durée illimitée mais avec une contrainte de temps minimal à passer dans l'état). Le problème de mapper un état software libre de durée fixe sur un chemin dans l'automate du dispositif physique en minimisant l'énergie est prouvé NP-complète. Une heuristique permettant de mapper les états libres d'un automate correspondant à un protocole software sur des états ou chemins entre les états d'un dispositif physique est proposée. L'approche amène à des gains théoriques de 60% pour B-MAC- une couche MAC classique. Pour les 2 catégories de système d'exploitation dédiés à ce type d'applications (modèle à événements et modèle à threads), des squelettes de code sont générés. Adapté a Mantis OS, le squelette de code pour B-MAC confirme en simulation sur la plateforme Worldsens les gains théoriques. Des experimentations sur la plateforme réelle Senslab ont prouvé que l'optimisation en terme d'energie ne modifie pas les performances fonctionnelles du protocole.
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Pantzare, Sandra, and Elin Wollert. "Wireless Piezoelectric Horse Sensor System." Thesis, Linköpings universitet, Fysik och elektroteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-150152.

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The domestication of horses took place at least 2000 BCE. Since then, horses have been used for transportation, agricultural work and even for warfare. Today, horses have been bred into world athletes, used worldwide in equestrian sports. However, these explosive performance horses present characteristics that make them prone to injuries leading to lameness. According to the insurance company Agria, more than 50 % of all reported injuries on horses in Sweden each year, are related to lameness. Using more objective analysing methods can lead to earlier detection and decrease the occurrence of this kind of injuries. In this Master’s degree project, a horse sensor system was proposed, designed and manufactured as a first prototype. The system consists of a force measuring device and an external reader. The force measuring sensor itself is a piezoelectric printed sensor. The force measuring device senses, acquires and transmits the raw data to the external reader. The focus of this project was on the hardware- and software development of the force measuring device and the software development for the external reader. To develop and verify the algorithms, as well as the entire system concept, the CC1352R1 Launchpad from Texas Instruments was used. The first results have indicated that the developed hardware and software of the force measuring device performs as expected. Also, important conclusions were drawn for both the force measuring device and the external reader. E.g., the force measuring device should fit the required physical dimension of the hoof sole, and the algorithms of the external reader should be improved in terms of data flow and memory usage. To conclude, the project is a challenging application making use of modern wireless sensor technology and printed electronics.
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Choe, Insook. "Multimedia system using wireless sensor networks /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1456296481&sid=2&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Books on the topic "Wireless sensor , Sensor operating system"

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Par, Gerard. Sensor Systems and Software: Second International ICST Conference, S-Cube 2010, Miami, FL, USA, December 13-15, 2010, Revised Selected Papers. Springer-Verlag GmbH Berlin Heidelberg, 2011.

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Demeester, Piet. Wireless Sensor Networks: 10th European Conference, EWSN 2013, Ghent, Belgium, February 13-15, 2013. Proceedings. Springer Berlin Heidelberg, 2013.

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Sotiris, Nikoletseas, Orponen Pekka, and SpringerLink (Online service), eds. Algorithms for Sensor Systems: 7th International Symposium on Algorithms for Sensor Systems, Wireless Ad Hoc Networks and Autonomous Mobile Entities, ALGOSENSORS 2011, Saarbrücken, Germany, September 8-9, 2011, Revised Selected Papers. Springer Berlin Heidelberg, 2012.

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Wang, Ruchuan. Advances in Wireless Sensor Networks: 6th China Conference, CWSN 2012, Huangshan, China, October 25-27, 2012, Revised Selected Papers. Springer Berlin Heidelberg, 2013.

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Rajmohan, Rajaraman, ed. Distributed computing in sensor systems: 6th IEEE International Conference, DCOSS 2010, Santa Barbara, CA, USA, June 21-23, 2010 ; proceedings. Springer, 2010.

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ALGOSENSORS 2009 (2009 Rhodes, Greece). Algorithmic aspects of wireless sensor networks: 5th international workshop, ALGOSENSORS 2009, Rhodes, Greece, July 10-11, 2009 ; revised selected papers. Springer, 2009.

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IEEE, International Conference on Mobile Ad-hoc and Sensor Systems (2004 Ft Lauderdale Fla ). 2004 IEEE International Conference on Mobile Ad-hoc and Sensor Systems: Fort Lauderdale, FL, 25-27 October, 2004. IEEE, 2004.

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IEEE Communications Society Conference on Sensor and Ad Hoc Communications and Networks (1st 2004 Santa Clara, Calif.). 2004 First Annual IEEE Communications Society Conference on Sensor and Ad Hoc Communications and Networks: IEEE SECON 2004 : 4-7 October, 2004, Santa Clara, California, USA. IEEE, 2004.

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Song, Zhen. Optimal Observation for Cyber-physical Systems: A Fisher-information-matrix-based Approach. Springer London, 2009.

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International Conference on Location Based Services and TeleCartography (5th 2008 Salzburg, Austria). Location based services and telecartography II: From sensor fusion to context models : 5th International Conference on Location Based Services and TeleCartography 2008, Salzburg / Georg Gartner, Karl Rehrl (eds.). Springer, 2009.

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Book chapters on the topic "Wireless sensor , Sensor operating system"

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Yao, Yanjun, Lipeng Wan, and Qing Cao. "System Architecture and Operating Systems." In The Art of Wireless Sensor Networks. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40009-4_21.

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Shucker, Brian, Jeff Rose, Anmol Sheth, et al. "Embedded Operating Systems for Wireless Microsensor Nodes." In Handbook of Sensor Networks. John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/047174414x.ch6.

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Moubarak, Mohamed, and Mohamed K. Watfa. "Embedded Operating Systems in Wireless Sensor Networks." In Computer Communications and Networks. Springer London, 2009. http://dx.doi.org/10.1007/978-1-84882-218-4_13.

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Scholl, Philipp M., Martina Brachmann, Silvia Santini, and Kristof Van Laerhoven. "Integrating Wireless Sensor Nodes in the Robot Operating System." In Studies in Computational Intelligence. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55029-4_7.

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Kim, Tae-Hyung, and Seongsoo Hong. "State Machine Based Operating System Architecture for Wireless Sensor Networks." In Parallel and Distributed Computing: Applications and Technologies. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30501-9_158.

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Sinha, Amit, and Anantha P. Chandrakasan. "Operating System and Algorithmic Techniques for Energy Scalable Wireless Sensor Networks." In Mobile Data Management. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-44498-x_16.

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Rajesh, M., and B. Sreevidya. "Vulnerability Analysis of Real-Time Operating Systems for Wireless Sensor Networks." In Advances in Intelligent Systems and Computing. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1483-8_38.

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Yi, Sangho, Hong Min, Junyoung Heo, et al. "Performance Analysis of Task Schedulers in Operating Systems for Wireless Sensor Networks." In Computational Science and Its Applications - ICCSA 2006. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11751632_55.

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Farooq, Muhammad Omer, Sadia Aziz, and Abdul Basit Dogar. "State of the Art in Wireless Sensor Networks Operating Systems: A Survey." In Future Generation Information Technology. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-17569-5_61.

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Casado, Lander, and Philippas Tsigas. "ContikiSec: A Secure Network Layer for Wireless Sensor Networks under the Contiki Operating System." In Identity and Privacy in the Internet Age. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04766-4_10.

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Conference papers on the topic "Wireless sensor , Sensor operating system"

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Paramo, Daniel, and Haiying Huang. "Unpowered Wireless Ultrasound Sensor." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3745.

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This paper presents a wireless ultrasound sensor that uses frequency conversion to convert the ultrasound signal to a microwave signal and transmit it directly without digitization. Constructed from a few passive microwave components, the sensor is able to sense, modulate, and transmit the full waveform of ultrasound signals wirelessly without requiring any local power source. The principle of operation of the unpowered wireless ultrasound sensor is described first. Implementation of the sensor and the sensor interrogation unit using commercially-available antennas and microwave components is described in detail. Validation of the sensing system using an ultrasound pitch-catch system and the power analysis model of the system are also presented.
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Sunder Raj, Komandur. "Smart Sensor Technologies for Performance Optimization of Power Generating Assets." In ASME 2019 Power Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/power2019-1904.

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Abstract Significant research is ongoing on several fronts in smart sensor technologies for optimizing the performance of power generating assets. The initiatives include: 1. Real-time models with advanced computational algorithms, embedded intelligence at sensor and component level for reducing operating costs, improving efficiencies, and lowering emissions. 2. Optical sapphire sensors for monitoring operation and performance of critical components in harsh environments, for improving accuracy of measurements in combustion monitoring, and lowering operating costs. 3. Wireless technologies using (a) microwave acoustic sensors for real-time monitoring of equipment in high temperature/pressure environments (b) integrated gas/temperature acoustic sensors for combustion monitoring in diverse harsh environment locations to improve combustion efficiency, reduce emissions, and lower maintenance costs (c) sensors for sensing temperature, strain and soot accumulation inside coal-fired boilers for detailed condition monitoring, better understanding of combustion and heat exchange processes, improved designs, more efficient operation. 4. Distributed optical fiber sensing system for real-time monitoring and optimization of high temperature profiles for improving efficiency and lowering emissions. 5. Smart parts with embedded sensors for in situ monitoring of multiple parameters in existing and new facilities. 6. Optimizing advanced 3D manufacturing processes for embedded sensors in components for harsh environments to reduce costs and improve efficiency of power generation facilities with carbon capture capabilities. 7. New energy-harvesting materials for powering wireless sensors in harsh environments, improving reliability of wireless sensors in demanding environments, and in-situ monitoring and performance of devices and systems. 8. Real-time, accurate and reliable monitoring of temperature at distributed locations of sensors in harsh environments for improving operations and reducing operating costs. 9. Algorithms and methodologies for designing control systems utilizing distributed intelligence for optimal control of power generation facilities. 10. Gas sensors for monitoring high temperatures in harsh environments for lowering operating costs and better control of operations. 11. Optimizing placement of smart sensors in networks for cognitive behavior and self-learning. This paper provides an overview of the initiatives in smart sensor technologies and their applications in optimizing the performance of power generating facilities.
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Wen, Yao-Jung, Alice M. Agogino, and Kai Goebel. "Fuzzy Validation and Fusion for Wireless Sensor Networks." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60964.

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Miniaturized, distributed, networked sensors — called motes — promise to be smaller, less expensive and more versatile than other sensing alternatives. While these motes may have less individual reliability, high accuracy for the overall system is still desirable. Sensor validation and fusion algorithms provide a mechanism to extract pertinent information from massively sensed data and identify incipient sensor failures. Fuzzy approaches have proven to be effective and robust in challenging sensor validation and fusion applications. The algorithm developed in this paper — called mote-FVF (fuzzy validation and fusion) — uses a fuzzy approach to define the correlation among sensor readings, assign a confidence value to each of them, and perform a fused weighted average. A sensor network implementing mote-FVF for monitoring the illuminance in a dimmable fluorescent lighting environment empirically demonstrates the timely response of the algorithm to sudden changes in normal operating conditions while correctly isolating faulty sensor readings.
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Pohl, Nils, Stephan Stanko, Michael Caris, Axel Tessmann, and Michael Schlechtweg. "An ultra-high resolution radar-system operating at 300 GHz." In 2015 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet). IEEE, 2015. http://dx.doi.org/10.1109/wisnet.2015.7127406.

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Nishida, Toshikazu, Jenshan Lin, Khai Ngo, et al. "Wireless Hydrogen Sensor Self-Powered Using Ambient Vibration and Light." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14644.

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This paper presents the design, integration, and test of a self-contained wireless hydrogen sensor system powered using ambient vibrations and light. A large number of distributed sensors are required to safely operate hydrogen production, storage, distribution, and fuel cell facilities for aviation, space, and terrestrial applications. Due to cost and reliability issues pertaining to a widespread distributed network, a completely wireless hydrogen sensor system is desirable. For a long (10 year) operating life with minimal maintenance, a wireless system implies both wireless data transmission and local energy mining and/or wireless collection of directed RF energy. Design procedures and issues pertaining to minimizing power consumption for a self-powered hydrogen sensor system are discussed.
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Kulkarni, V., R. Ben-Mrad, and S. Eswar Prasad. "A Torsion Based Shear Mode Piezoelectric Energy Harvester for Wireless Sensor Modules." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37640.

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Energy harvesting devices are growing in popularity for their ability to capture the ambient energy surrounding a system and convert it into usable electrical energy. With an increasing demand for portable electronics and wireless sensors in a number of sectors, energy harvesting has the potential to create self-powered sensor systems operating in inaccessible locations. This paper discusses a torsion based piezoelectric energy harvester that utilizes superior shear mode piezoelectric properties to harvest energy from vibrations. Mathematical expressions are used to determine optimized geometry configurations for the harvester. Using these expressions, a harvester design is presented for use with wireless sensor networks.
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Seungmin Park, Jin Won Kim, Kee-Young Shin, and Daeyoung Kim. "A nano operating system for wireless sensor networks." In 8th International Conference on Advanced Communication Technology. IEEE, 2006. http://dx.doi.org/10.1109/icact.2006.205982.

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Mitchell, David, Anand Kulkarni, Alex Lostetter, Marcelo Schupbach, John Fraley, and Rod Waits. "Development and Testing of Harsh Environment, Wireless Sensor Systems for Industrial Gas Turbines." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-60316.

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The potential for savings provided to worldwide operators of industrial gas turbines, by transitioning from the current standard of interval-based maintenance to condition-based maintenance may be in the hundreds of millions of dollars. In addition, the operational flexibility that may be obtained by knowing the historical and current condition of life-limiting components will enable more efficient use of industrial gas turbine resources, with less risk of unplanned outages as a result of off-parameter operations. To date, it has been impossible to apply true condition-based maintenance to industrial gas turbines because the extremely harsh operating conditions in the heart of a gas turbine preclude using the necessary advanced sensor systems to monitor the machine’s condition continuously. Siemens, Rove Technical Services, and Arkansas Power Electronics International are working together to develop a potentially industry-changing technology to build smart, self-aware engine components that incorporate embedded, harsh-environment-capable sensors and high temperature capable wireless telemetry systems for continuously monitoring component condition in the hot gas path turbine sections. The approach involves embedding sensors on complex shapes, such as turbine blades, embedding wireless telemetry systems in regions with temperatures that preclude the use of conventional silicon-based electronics, and successfully transmitting the sensor information from an environment very hostile to wireless signals. The results presented will include those from advanced, harsh environment sensor and wireless telemetry component development activities. In addition, results from laboratory and high temperature rig and spin testing will be discussed.
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Heidemann, John, Fabio Silva, Chalermek Intanagonwiwat, Ramesh Govindan, Deborah Estrin, and Deepak Ganesan. "Building efficient wireless sensor networks with low-level naming." In SOSP01: 18th Symposium on Operating System Principles. ACM, 2001. http://dx.doi.org/10.1145/502034.502049.

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Lalau-Keraly, Christopher, George Daniel, Joseph Lee, and David Schwartz. "Peel-and-Stick Sensors Powered by Directed RF Energy." In ASME 2017 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2017 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/ipack2017-74150.

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PARC, a Xerox Company, is developing a low-cost system of peel-and-stick wireless sensors that will enable widespread building environment sensor deployment with the potential to deliver up to 30% energy savings. The system is embodied by a set of RF hubs that provide power to automatically located sensor nodes, and relay data wirelessly to the building management system (BMS). The sensor nodes are flexible electronic labels powered by rectified RF energy transmitted by an RF hub and can contain multiple printed and conventional sensors. The system design overcomes limitations in wireless sensors related to power delivery, lifetime, and cost by eliminating batteries and photovoltaic devices. Sensor localization is performed automatically by the inclusion of a programmable multidirectional antenna array in the RF hub. Comparison of signal strengths while the RF beam is swept allows for sensor localization, reducing installation effort and enabling automatic recommissioning of sensors that have been relocated, overcoming a significant challenge in building operations. PARC has already demonstrated wireless power and temperature data transmission up to a distance of 20m with less than one minute between measurements, using power levels well within the FCC regulation limits in the 902–928 MHz ISM band. The sensor’s RF energy harvesting antenna achieves high performance with dimensions below 5cm × 9cm.
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Reports on the topic "Wireless sensor , Sensor operating system"

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Pereira da Cunha, Mauricio. Wireless microwave acoustic sensor system for condition monitoring in power plant environments. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1406890.

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Pereira da Cunha, Mauricio. INTEGRATED HARSH ENVIRONMENT GAS / TEMPERATURE WIRELESS MICROWAVE ACOUSTIC SENSOR SYSTEM FOR FOSSIL ENERGY APPLICATIONS. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1633544.

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McDonald, R. J., T. A. Butcher, and R. F. Krajewski. Development of self-tuning residential oil-burner. Oxygen sensor assessment and early prototype system operating experience. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/308009.

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MCDONALD, R. J., T. A. BUTCHER, and R. F. KRAJEWSKI. DEVELOPMENT OF SELF-TUNING RESIDENTIAL OIL/BURNER - OXYGEN SENSOR ASSESSMENT AND EARLY PROTOTYPE SYSTEM OPERATING EXPERIENCE. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/760974.

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Dafflon, Baptiste, S. Wielandt, S. Uhlemann, et al. Revolutionizing observations and predictability of Arctic system dynamics through next-generation dense, heterogeneous and intelligent wireless sensor networks with embedded AI. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1769774.

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Christie, Benjamin, Osama Ennasr, and Garry Glaspell. Autonomous navigation and mapping in a simulated environment. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42006.

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Unknown Environment Exploration (UEE) with an Unmanned Ground Vehicle (UGV) is extremely challenging. This report investigates a frontier exploration approach, in simulation, that leverages Simultaneous Localization And Mapping (SLAM) to efficiently explore unknown areas by finding navigable routes. The solution utilizes a diverse sensor payload that includes wheel encoders, three-dimensional (3-D) LIDAR, and Red, Green, Blue and Depth (RGBD) cameras. The main goal of this effort is to leverage frontier-based exploration with a UGV to produce a 3-D map (up to 10 cm resolution). The solution provided leverages the Robot Operating System (ROS).
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CAE Correlation of Sealing Pressure of a Press-in-Place Gasket. SAE Imposter, 2021. http://dx.doi.org/10.4271/2021-01-0299.

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The Press-in-Place (PIP) gasket is a static face seal with self-retaining feature, which is used for the mating surfaces of engine components to maintain the reliability of the closed system under various operating conditions. Its design allows it to provide enough contact pressure to seal the internal fluid as well as prevent mechanical failures. Insufficient sealing pressure will lead to fluid leakage, consequently resulting in engine failures. A test fixture was designed to simulate the clamp load and internal pressure condition on a gasket bolted joint. A Sensor pad using TEKSCAN equipment was used to capture the overall and local pressure distribution of the PIP gasket under various engine loading conditions. Then, the Sensor pad test results were compared with simulated CAE results from computer models. Through the comparisons, it is found that the gasket sealing pressure of test data and CAE data show good correlation for bolt load condition 500N when compared to internal pressure side load condition of 0.138 MPa & 0.276 MPa. Moreover, the gasket cross-sectional pressure distribution obtained by experimental tests and CAE models correlated very well with R2 ranging from 90 to 99% for all load cases. Both CAE and Sensor pad test results shows increase in sealing pressure when internal side pressure is applied to the gasket seal.
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