基于无线传感网络的环境监测系统

摘要

无线传感器网络是目前环境监测领域研究的热点技术。结合ZigBee和无线传感网络设计了集多种功能于一体的完整环境监测系统。在本系统中，节点选用CC2530芯片作为zigbee通信模块，网关采用GPRS作为系统与3G网络的通信模式。系统实现了采集温度、湿度、光线亮度等环境信息，并进行了相应处理，设计了网关数据处理软件算法。系统具体的工作方式为：传感器节点对室内的环境信息进行采集并将数据以ZigBee无线自组网方式发送到无线传感网络的控制中心网关，网关负责将传感器数据处理后上传到云服务器；用户能够通过手机APP和网页查看，对于重要的警告信息网关会发短信到用户的手机，而服务器端会发邮件或微博提醒用户。经过测试和使用，本系统运行可靠，能准确获取环境数据，网关和服务器端数据能够实时更新，环境参数能实现自动调节与校准。%Wireless sensor network is the hotspot technology in environmental monitoring area. Combining ZigBee and wireless sensor network,we designed an environmental monitoring system which integratesa variety of functions. In this system,the CC2530 was as ZigBee communication module,and GPRS was used as gateway communication mode with 3 G network. The system realized collecting the environmental information such as temperature,humidi⁃ty,light intensity and so on,andthe informationswere handled accordingly in the gateway,and the gateway data pro⁃cessing algorithms hasbeen designed. The specific working way of system is that the sensor nodes of environment monitoring system got the data of environmental information and sent it to the coordinator nodes by adhoc ,as well as the gateway can uploaded the sensor datato the cloud serverby GPRS after being processed;So the user can use cell⁃phone and web page to check the environmental information. If there is the danger information,the important warn⁃ing data will be sent to the user's mobile phone,in the meantime send email orweibo to remind users through the server. After using and testing,The system operates reliably,and can obtain environmental data correctly,and the data of gateway and server can be real-time update,the environmental parameters can realize automatic adjustment and calibration.