Design and Realization of 2.45GHz Active RFID System

An active 2.45 GHz RFID system based on C8051F3XX series MCU and nRF24L01 low power radio transceiver chip is introduced in this article with emphasis on the system´s hardware design, realization scheme of anti-collision algorithm (combined with the principle of power control technology) ,safety solution and realization of label´s low power consumption. This active RFID system designed in this article can be used as automatic identification remotely for containers in the environment of the terminals, as well as the system for remote identification and control such as in the information collection and control for the vehicle transit and the toll gate in the case of vehicle non-stopping.