基于WSN的温湿度节点研制

Development of WSN-Based Temperature and Humidity Node

针对农业气象监测中,温湿度、露点等测量仪器布线困难、移动性差的难题,研制了一种基于WSN的温湿度计节点。采用高精度温湿度传感器SHT75、CC2530无线处理器、SD2003A时钟芯片以及GPS模块TU-30等电路构成了高精度温湿度测量节点,完成了各功能模块外围电路的设计。采用Zigbee协议进行组网,节点执行温湿度检测程序后,将数据无线发送到网络中。本节点可作为网络节点部署在农田、温室大棚、粮仓或者养殖场的不同位置,与其他气象网络节点共同构成为农服务监测系统,实现温度、湿度等要素的测量。

For wiring difficulties and poor mobility problems of temperature and humidity, dew point, and other measuring instruments in agro-meteorologieal monitoring, a temperature and humidity node is designed based on WSN, which is constituted by the high precision temperature and humidity sensor SHT75, CC2530 wireless processor, SD2003A clock chip, GPS module TU-30, and other circuits, and the peripheral circuit design of each functional module is completed. Using the Zigbee protocol for networking, after the testing procedures of temperature and humidity, the node sends the data to the network through wireless. This node can be used as a network node arranged in different positions in farmlands, greenhouses or granary, constructing the monitoring system for agricultural services together with other meteorological network nodes and achieving the measurement of temperature, humidity, etc .