2 research outputs found

    Object localization with RFID technology

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    In this work we analyse the approaching of a mobile robot using RFID (Radio Frequency Identification) Technology with the purpose of finding and navigating towards RFID tags without visual object detection. The aim is the evaluation of ROS to provide the means to allow a mobile robot to approach to RFID tags, using a radiofrequency antenna as a transmitter/receptor element of signals. As part of this system the robot emits radiofrequency signals searching for a particular RFID tag, and then it is approached towards the particular RFID tag until the signal strength was maximized, it means that the object was localized and captured. The approach has been tested using two different algorithms which work together: - Linear search. - Advanced search. All the code and tests of this project are based to work with one antenna. On one hand it means simplicity, but on the other hand it can mean a lack of precision.En este proyecto se pone en pr谩ctica la tecnolog铆a RFID (Radio Frequency Identification) con el prop贸sito de localizaci贸n y aproximaci贸n de un robot m贸vil hacia una etiqueta RFID fijada en un objeto sin utilizar detecci贸n visual. El objetivo es utilizar ROS (Robot Operating System) para lograr que un robot m贸vil se acerque a las etiquetas RFID, utilizando una antena RF como elemento TX/ RX. El robot emite se帽ales RF en busca de una etiqueta RFID en particular. Tras hallar la etiqueta RFID deseada se comienza a realizar la maniobra de aproximaci贸n hasta superar cierto umbral de potencia de se帽al recibida, RSSI (Received Signal Strengh Indicator), especificado por par谩metro. Este proyecto funciona con una sola antena. Esto significa simplicidad, pero por otro lado, cierta falta de precisi贸n.Ingenier铆a de Telecomunicaci贸
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