基于物联网的土壤含水率监测及灌溉系统

摘要

In order to improve the efficiency of agricultural water saving irrigation and ensure the normal crops growth , this paper gives a wireless transmission system which uses CC 2520 and CC2591 as the wireless network node of Zigbee based on TI MSP430F149.This system can send the soil moisture content , the temperature and humidity information to GPRS by Zigbee to complete the functions of soil dry humidity collection , storage and remote network monitoring .Then the irrigation amount can be controlled based on the soil dry humidity situation .The hardware and software of this system is given in this paper .The test results show the node hardware has high receiving sensitivity and the communication dis -tance is satisfactory .%　　为了提高农业节水灌溉的效率，保证农作物正常生长，以TI公司的 MSP430F149低功耗单片机为基础，利用CC2520结合CC2591作为ZigBee 的无线网络节点，实现了无线传输和灌溉控制。同时，采用ZigBee 无线技术将土壤含水率、温湿度信息传输至GPRS无线网络，实现了土壤干湿度信息采集、存储和远程网络监控的功能，继而可以根据土壤干湿度情况控制灌溉量，设计出该系统的软硬件。测试结果表明，节点硬件接收灵敏度高，通信距离较理想。