An Active Integrated Zigbee RFID System with GPS Functionalities for Location Monitoring Utilizing Wireless Sensor Network and GSM Communication Platform

An active integrated Radio Frequency Identification (RFID) system that operates in 2.45 GHz ISM band frequency is developed to support indoor and outdoor real-time location monitoring by utilizing Global Positioning System (GPS) in Wireless Sensor Network (WSN) and Global System for Mobile (GSM) communication platform. The proposed active RFID system is based on an automated switching mechanism between indoor and outdoor location and the capabilities of the system is extended by providing a contactless communication between the tagged items or persons and the monitoring station. There are two types of communication protocol; Reader Talk First (RTF) and Tag Talk First (TTF) involved in the proposed RFID system. The effectiveness of the proposed RFID system is evaluated based on the communication protocols implemented and the capability of the proposed RFID reader to read multiple tags is tested by analyzing the tag collection process in the RFID system. From the results, it is shown that the system with TTF protocol is better than the RTF protocol in terms of data collision and average time delay while performing transmission and reception processes.