基于ARM与ZigBee的温室环境无线监控系统设计

Monitoring System Design of Agricultural Environment Based on ARM and ZigBee Wireless Network

针对农作物生长有线监控系统的局限性,采用ATM板作为下位机对农作物生长环境进行监控,利用PID闭环控制系统反馈调节机制对ZigBee无线网络监控模型进行了改进,提高了系统反应的灵敏度,设计了一个新的ZigBee无线传感器网络。该无线传感器网络利用可视化显示技术,可以对农作物生长过程中土壤的温度和湿度进行实时在线监测。系统选用三轴数字加速度传感器ADXL345作为环境监测的传感器,采用IIC方式和ZigBee无线网络节点进行互联,利用数据选择性输出,节省了数据传输成本,降低了数据冗余量,从而节省比较多的传感器网络能量,为现代农业技术研究提供了技术参考。

According to the limitations of crop growth cable in monitoring system, this paper uses ATM board as lower computer to monitor the environment for the growth of crops, and uses PID closed-loop control system feedback regulation mechanism to improve ZigBee wireless network monitoring mode, which has improved the sensitivity of the system re-sponse, and has designed a new ZigBee wireless sensor network.The wireless sensor network （ WSN） uses visual display technology to implement real-time online monitor the soil temperature and humidity in the process of crops growth.It uses three-axis digital acceleration sensor ADXL345 as environmental monitoring sensor, and uses IIC and ZigBee wireless network to interconnect the nodes,and utilizes the alternative output data to save the cost of data transmission, reduces the data redundancy,which has saved more energy of sensor network and has provided the technical reference to the re-search of agricultural modernization technology.