An Efficient Dynamic K - Papa Architecture for Communicating with the Things using Collision-Free Algorithm

Abstract

The research is based on tracking the lost assets within a distance of 30 ft using ultra-high frequency (UHF) RFID tags by implying a system that includes a micro USB RFID reader, smartphone, and UHF RFID tags. The system uses a micro-USB RFID reader and a smartphone application that tracks the UHF RFID tag affix with the assets to be found. The smartphone application will use a tag identification and location-based collision-free algorithm with the help of asset tracking is done in a fast and efficient way. There could be many RFID tags present in a specific area and all of those tags will emit the radio signals simultaneously, which creates high chances of tag collision. The tag identification and location-based collision-free algorithm works even in the presence of many UHF RFID tag readers and will detect all the RFID tags present nearby and authenticate them by comparing the information present in the database. In the first phase, the tag identification and location-based collision-free algorithm will detect all the UHF RFID tags and authenticate them through the information present in the database, and in the second phase, it will send the correct location and their distance with the help of RSSI (Received Signal Strength Indicator) value of the tag. This value becomes more accurate by repeating the calculation process twice, which results in a minimum error and maximum accuracy. The system will also intimates the user about the UHF RFID tag going out of range with the help of a notification on the smartphone application. This feature acts as a security measure, as it protects the assets from theft and will also protect it from getting lost.