村镇河道水质在线监测系统的设计与实现

Design and implementation of online monitoring system for water environment quality of river in town

针对村镇河道水环境自动化、系统化、规模化的监测需求,以物联网技术为基础,结合基于富客户端的WebGIS技术,设计水质在线监测系统的总体结构,将系统分为感知数据采集层、网络数据传输层和服务应用层3部分。研究设计水质自动监测设备,实现水环境信息数据采集端的硬件设计;分析水质在线监测平台的功能设计,阐述基于百度地图API的水质监测信息网络地图可视化方法,提出一种监测点时空关联采集感知方法,在发生水质异常情况时,计算估计污染物扩散情况,进行针对性的密集采集监测,最大程度还原水质真实情况。实际应用结果表明,该系统效果良好。

According to the demands of automatic intelligent river water environment monitoring, the general structure of online water quality monitoring system was designed based on internet of things technology and WebGIS of rich clients. The system was divided into three parts including perception data acquisition layer, network layer and application layer. The hardware structure of the automatic water quality monitoring equipment was analyzed. The functions of online water quality monitoring system were proposed, the web map visualization method of water quality monitoring information based on Baidu map API was described and the spatial-temporal correlation monitoring method was presented, When the water quality was abnormal, the diffusion of con- taminants was estimated for intensive collection, restoring the real situation of water quality. Results of the real application show the system has good effects.