Academic literature on the topic 'Tag'

I kursen KPP106 som är ett examensarbete mot formgivning för högskoleingenjörer så ingår det att produktutveckla en produkt mot formgivning samt skriva en rapport kring arbetet. Denna rapport har valts att delas in i fyra delar för att kunna ge läsaren en bättre förståelse för projektets riktning. De olika faserna är: förståelse av problemet, en idégenerering för att kunna finna så många lösningar som möjligt, framtagning av väsentliga lösningar till projektet samt ett val av koncept och slutligen en bearbetning av det utvalda konceptet där det omvandlas till ett resultat. Projektdirektiv har getts från handledare och uppdragsgivaren Mauri Modin. Det främsta direktivet med projektet var att omforma den nuvarande produkten så att utseendet blev mer tilltalande. Produktens syfte är att sanera klotter. Det koncept som vidareutvecklats är en förbättrad modell av den nuvarande produkten där utseende, montering och ergonomi har förbättrats.

This thesis project aims to develop an active Radio Frequency Identification tag (RFID) which uses an interesting method for positioning and ID detection. In this project, rather than classical ways of positioning methods such as triangulation or radio maps, infrared light and a camera with an infrared filter was used for the positioning. Tag identification detection is done by applying image analysis on camera images. When a specific part is wanted from the warehouse, this part is addressed through the active RFID system and the tag attached to that part starts to blink with the tag ID. A camera with an infrared filter above the goods in the ceiling finds the blinking infrared led, detects the tag’s position by image analysis, and confirms the ID with the requested ID number. A led transmitting visual light is used to ensure the tag also can be seen by the forklift driver in the warehouse environment when he is in close range of the part. First of all, related work and scientific papers were examined mostly from the IEEE database, which was instrumental in constructing this thesis project. Under the circumstances of low power consumption and the demands from the tag, additional possible components for an RFID tag such as an infrared led, a visual led, transistors for the LED amplifier stage and an LDO (Low-dropout) voltage regulator are chosen. Necessary technical calculations such as gain, power consumption are calculated. The RFID tag is built with these components, and transferred into the software environment .First the schematic is drawn and footprints created for the each component and the case styles are decided for transferring the circuit into the layout environment. For the radio circuit part which is used for the communication between the server and the tag, transmission lines of PCB demands are examined and the necessary calculations are made for impedance matching to prevent any disorder. After preparation of the PCB, gerber files are sent for the manufacturing process and the hardware part is completed. The components are mounted and the LED’s blinking time interval is set depending on the camera’s applicable frame speed, relevant tests for the ID detection and positioning (see fig.1). With optimisation of the time interval for recognition of the ID, an algorithm for the positioning of the RFID tag is developed and the related ID detection algorithm is developed for the real time applications by using a camera. As a result of this thesis project, instead of using complex systems for the positioning, such as triangulation or creating a radio map with multiple readers etc. a basic solution is produced as an alternative.  The efficiency of the system, the distance that allows the positioning and how applicable the system is are examined.

Developing and maintaining software is a difficult task, and finding effective methods of understanding software is more necessary now than ever with the last few decades seeing a dramatic climb in the scale of software. Appropriate visualisations may enable greater understanding of the datasets we deal with in software engineering. As an aid for sense-making, visualisation is widely used in daily life (through graphics such as weather maps and road signs), as well as in other research domains, and is thought to be exceedingly beneficial. Unfortunately, there has not been widespread use of the multitude of techniques which have proposed for the software engineering domain. Tag clouds are a simple, text-based visualisation commonly found on the internet. Typically, implementations of tag clouds have not included rich interactive features which are necessary for data exploration. In this thesis, I introduce design considerations and a task set for enabling interaction in a tag cloud visualisation system. These considerations are based on an analysis of challenges in visualising software engineering data, and the perceptive influences of visual properties available in tag clouds. The design and implementation of interactive system Taggle based on these considerations is also presented, along with its broad-based evaluation. Evaluation approaches were informed by a systematic mapping study of previous tag cloud evaluation, providing an overview of existing research in the domain. The design of Taggle was improved following a heuristic evaluation by domain experts. Subsequent evaluations were divided into two parts - experiments focused on the tag cloud visualisation technique itself, and a task-based approach focused on the whole interactive system. As evidenced in the series of evaluative studies, the enhanced tag cloud features incorporated into Taggle enabled faster visual search response time, and the system could be used with minimal training to discover relevant information about an unknown software engineering dataset.

In questo lavoro di tesi è stato realizzato un software di elaborazione dei segnali ricevuti da una etichetta (tag) RFID chipless con l’obiettivo di stimare la distanza del tag rispetto alla posizione dei ricevitori. Questo progetto trova importanti applicazioni legate alla localizzazione sia in ambito hi-tech che di largo consumo, come ad esempio la logistica, l’automotive e i sistemi di automazione. In questo progetto è stato curato specificamente il processo di acquisizione ed elaborazione dati, processando al calcolatore con l’ausilio del software MATLAB® i risultati provenienti da un simulatore circuitale del tag. In particolare, i dati da elaborare sono stati forniti da un progetto di ricerca correlato a questo dove è stato studiato e realizzato un tag RFID chipless passivo di tipo armonico non lineare.

<p>Free2Move AB is developing products for the market within wireless communication</p><p>and identification, among those active RFID-tags. The company had an idea about</p><p>providing one of their active RFID tags with a GPS receiver and transmit positions via</p><p>an existing RFID protocol. Desire from the company was also the possibility to log</p><p>positions and measure temperature. The finished prototype should also be able to be</p><p>activated by movement. The company had proposal about components that were to be</p><p>used in the project. A large part of the work was to understand how these worked and</p><p>how to combine them to fulfill the requirements established in agreement with</p><p>supervisor at Free2Move. A PIC microcontroller was used in the design of the prototype</p><p>and software implemented for communication with GPS, RFID tag and other</p><p>components. The result was a working prototype where an existing RFID tag was</p><p>integrated in the same printed circuit board layout as the GPS receiver and other</p><p>components that were used in the project.</p>

Während sich der Chemnitzer Linux-Tag über die vergangenen fünf Jahre mit jedem Mal in der Zahl der Aussteller, Helfer und Gäste steigerte, wuchs auch in jedem Jahr das Tagungsnetzwerk. Den Informatikern wird häufig nachgesagt, daß sie wenig dokumentieren würden. Dieses Vorurteil traf auch für das Netzwerk der vergangenen Chemnitzer Linux-Tage zu. Unter anderem, um diesem Mißstand abzuhelfen, haben wir uns bemüht, möglichst detailliert Informationen über Konzept, eingesetzte Technologieen und konkrete Konfiguration des Tagungsnetzwerks des Chemnitzer Linux-Tags 2004 zusammenzutragen.

In recent years, camera-equipped mobile devices have undergone significant  evelopments due to increasing computational power as well as reduction of manufacturing unit costs. This has allowed for the development of new stateof- the-art applications, such as object analysis and detection. The focus of this thesis is the detection of visual markers which can be used in various applications such as positioning systems, object tracking and ‘Augmented Reality’. More specifically, the work has been motivated by ongoing research in indoor positioning, where global satellite navigation systems are not reliable enough. The goal is to develop a new visual tag detector, that is both simple and reliable. In the report the necessary background for understanding the development of the detector, as well as a detailed analysis of the current detectors, will be presented. Moreover, through an analysis of the current available image processing tools, we will present the proposed detector. Finally, in order to give a better overview of the system developed, complexity and performance results are presented, ending with some conclusions and suggested further lines of work.