基于ZigBee和GPRS的大气污染监测系统设计

Design of air pollution monitoring system based on ZigBee and GPRS

设计一种基于ZigBee和GPRS的大气污染监测系统,该系统由资源层、中间层和应用层3部分组成。资源层采用ZigBee模块作为无线组网模块,利用STM32F107单片机作为控制芯片,与传感器一起组成一个监测节点;传感器采集的数据经过单片机处理后,以串行通信协议发给ZigBee模块,再通过无线传感器网络发送到数据集中器;集中器由ZigBee模块、单片机和GPRS模块组成,集中器将收到的数据通过GPRS模块发送给服务器,并实时存入数据库。中间层负责对传感器网络进行管理。应用层通过中间层对数据库进行访问,得到相关的监测信息并对空气质量状况做出报道。

An air pollution monitoring system was designed based on ZigBee and GPRS,which consists of resource layer,middle layer and application layer.The ZigBee module is chosen in the resource layer to be the wireless networking module.STM32F107 microcontroller is used as the central control chip,which,together with sensors,constructs a monitoring node.The data collected from sensors are processed by the microcontroller first and then sent to the ZigBee module by serial communication protocol.After that,wireless sensor network transmits the data to data concentrator,which is composed of Zigbee module,microcontroller and GPRS module.The data concentrator relays the data to remote server by GPRS,which are deposited in real time into the database.The middle layer is responsible for the management of sensor network.Application layer accesses the database through the middle layer,obtaining related monitoring information and reporting the status of air quality.