远程环境在线监测系统的设计

Design of Remote Environmental Monitoring System

摘要:

环保数据监测系统是环境保护中的重要环节,传统的环境监测是人工采集数据，监管效果差.针对这一问题设计了一种无线远程环境在线监测系统，下位机采用西门子S7200 PLC(可编程控制器)采集、存储现场数据，通过GPRS(通用分组无线服务)DTU(数据传输单元)主动向数据中心发送采集到的实时数据，并能够在指定的时间段内接收上位机指令，进行历史数据查询；上位机利用VB 6.0的Winsock控件接收多台数据采集终端的数据，并进行分析处理.该系统已经在佛山市南海区运行，有效地提高了环境监管的效率.

Abstract:

A remote environment online monitor system was designed to replace traditional environmental data monitoring systems,which collected monitoring data manully and whose monitoring effects were not ideal.Field data can be collected and restored by Siemens S7-200 PLC,and the realtime data of equipment’s state can be sent to the host computer automatically through the GPRS DTU,and receive the host computer’s instruction and send the history data within a specific time.The host computer receives and processes the data of remote terminals with the Winsock control of VB6.0.This system is applied to Nanhai District of Foshan City to improve the efficiency of environmental regulation.