研究了一种低功耗有源射频识别系统组网与设计技术,该系统可在软硬件两方面实现低功耗设计。在硬件方面,采 用NORDIC公司的nRF24LE1芯片作为有源标签,nRF24L01+芯片作为节点射频芯片,STM32单片机作为节点控制芯片, 实现了芯片与节点的注册与通信;软件方面,采用时分复用方法,合理分配有源芯片的时隙,设计了防冲突机制,使得芯片 在极端的时间内工作,实现了低功耗组网通信。

A design of low power consumption active radio frequency identification (RFID) is proposed in this paper. The scheme reduces the power consumption of active RFID tag from two aspects of hardware design and software design. At the hardware level, the system uses STM32F103C8 MCU as a control node and nRF24LE1 from Nordic company as a radio frequency tag. At the software level, it completed the anti-collision design through the slot allocation of tags so that the tags can work only in a short time. In this way, the system accomplishes networking and communicating with reduced power consumption.