针对医疗领域的传统呼叫系统存在着布线繁琐、安装麻烦、成本高、易受环境干扰等问题,设计了一种基于ZigBee的无线呼叫医疗监护系统,并阐述了该系统的硬件设计和软件设计.该系统以ARM作为控制核心,CC2420芯片作为射频发送、接收模块,分别完成了协调器、终端控制器、显示报警以及温湿度传感器模块的设计.测试结果表明,该系统安装方便、可扩展性强,符合呼叫系统的发展趋势.%Conventional calling system in the filed of medical care has the disadvantages of cumbersome wiring, complication of installation, high cost, and is subjected to environmental interference. Here, a wireless calling medical monitoring system based on ZigBee is designed and the design method of hardware and software is described in the paper. With ARM as a control core and CC2420 chip as the RF transmitter and receiver modules, the system completes the design of the coordinator, the terminal controller, displaying alarm and temperature and humidity sensor module respectively. The test results show that the system is easy to install, and has strong scalability, which accords with the development trend of the calling system.
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