基于PLC和GPRS的供水管网监测系统

Remote Monitoring System for Water Supply Based on PLC and GPRS

针对具体工程实例,分析了在供水管网监测系统中采用传统的无线电台等传输方式存在的缺点以及GPRS技术的优点,选用GPRS DTU作为无线监测设备,通过与单片机系统比较,选用西门子PLC S7-200作为现场数据采集设备。介绍了该系统的结构,硬件的选择,通信的实现,以及主要的监控功能,并说明实际运行三年来所显明的优越性。

By comparing the defaults of radio station and advantages of GPRS,the system chooses a GPRS DTU as wireless e- quipment to monitoring water supply.Then it chooses the PLC S7-200 replace the single-chip.Then the structure and hardware of the system is introduced,and the realization of communication and other monitoring functions is illustrated.At last,the system is put into operation about three years and work well in more aspects.