基于KW01的无线RFID读卡系统设计

The Wireless RFID Card Reader System Design Based On KW01 Processor

摘要:

针对以Mifare卡为基础的传统有线RFID系统组网复杂,成本高等问题,采用飞思卡尔2014年最新推向市场的KW01 MCU(集成ARM Cortex-M0+内核与Zigbee Sub-1G无线射频收发器)与射频芯片 MF RC531开发了一套无线RFID读卡系统,以构件化思想设计了系统各模块的硬件电路,封装了KW01与RC531的底层软件驱动构件,并以此为基础给出了结构清晰的工程框架,降低了系统开发的难度,提高了系统的可扩展性与可移植性；同时在软件设计中移植了飞思卡尔SMAC无线精简协议栈实现网络组建,并改进了通信协议与数据收发机制。在433M频率下的测试表明系统节点通信距离远、功耗低、性能稳定,达到了预期要求。

Abstract:

Aiming at the complex network and high cost of the traditional wired RFID system, This paper introduces a wireless RFID card reader system based on the MCU KW01 (ARM Cortex-M0+), describes the design of component circuit of KW01 and MF RC531, and a RFID component engineering framework and universal component to achieve more efficient software design, ameliorates and transplants SMAC protocol stack to implement Sub-1GHz wireless communication. Test results prove that the system has low power consumption and stability performance which is useful in practical engineering.