基于Si4432的温室环境监测无线组网模块设计

摘要

采用PIC24FJ64微处理器和Si4432无线收发芯片设计了无线组网模块,利用此无线组网模块搭建了温室控制器、数据采集器电路并编写了组网通信协议和上位机显示界面程序.该系统具有功耗低,数据可靠性高、适用性好的特点.经实际测试,系统休眠电流为4.5μA,空中传输速率是9.6 kbps,通信距离在空旷条件下可达1000 m.%In the paper,the wireless networking module is designed with PIC24FJ64 microprocessor and Si4432 wireless transceiver chip. The greenhouse controller and the data collector circuit are used to set up the network communication protocol and the host computer display interface program.The system has the characteristics of low-power consumption,high data reliability and high applicability.The experiment results show that the system sleep current is 4.5 μA,the air transfer rate is 9.6 kbps,the communication distance in the open condition is up to 1000 m.