基于PLC的电缆隧道无线分布式监控系统

PLC-based wireless distributed supervision system for cable tunnel

电缆隧道在一些特大型的现代化工业企业普遍存在,根据实际情况,对1700m长的电缆隧道建立了基于S7-200可编程序逻辑控制器PLC(ProgrammableLogicController)的无线电缆隧道分布式监控系统。计算机系统实现了对通风装置、排水设备、防火门的自动控制。给出了系统结构及功能设计,介绍了无线通信系统及温度信号处理。

There are normally electronic cable tunnels in large modern industrial enterprises.According to the real conditions,a wireless distributed supervision system for an electronic cable tunnel of 1 700 meters is built,which is based on the programmable logic controller of S7-200. It controls the ventilator,drainage and fire doors automatically. The system structure and function design are presented,and the wireless communication system and temperature signal processing are introduced.