基于PLC的电缆隧道无线分布式监控系统

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l700m长的电缆隧道建立了基于S7-200可编程序逻辑控制器PLC(Programmable Logic Controller)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。

PLC-based wireless distributed supervision system for cable tunnel

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.