一种电梯停车保护控制系统及控制方法

Lift stopping protection controlling system and method

Abstract

本发明公开一种电梯停车保护控制方法,包括如下步骤:(1)电梯控制器根据乘客选定的楼层,控制该楼层对应的n个红外发射器启动,开始发出红外光,同时控制轿厢开始运行,其中,n为自然数;(2)轿厢在运行过程中,安装在轿厢上的n个红外接收器在接收到红外光时向PLC发送确认信号,当PLC同时收到n个确认信号时,向停车装置发送停车信号,停车装置控制轿厢停车,PLC同时向控制器发送停车信号;(3)控制器在接收到PLC发送的停车信号后,向门禁系统发出控制信号,控制该楼层的电梯门打开。此种控制方法可实现电梯轿厢准确停车,安全性高。本发明还公开一种采用前述电梯停车保护控制方法的控制系统。
The invention discloses a lift stopping protection controlling method. The lift stopping protection controlling method comprises the following steps that (1) a lift controller controls n infrared emitters corresponding to a floor selected by a passenger to start and begin to emit infrared light according to the floor selected by the passenger, and a lift car is controlled to start running at the same time, wherein n is a natural number; (2) when the lift car operates, n infrared receivers installed on the lift car sends determination signals to a PLC once receiving the infrared light, when the PLC receives the n determination signals at the same time, a stopping signal is sent to a stopping device by the PLC, the stopping device controls the lift car to stop, and the PLC sends the stopping signal to the controller at the same time; (3) after receiving the stopping signal sent by the PLC, the controller sends a control signal to an access control system, and a lift door of the floor is controlled to be opened. By the adoption of the lift stopping protection controlling method, accurate stopping of the lift car can be achieved, and high safety is achieved. The invention further discloses a control system using the lift stopping protection controlling method.

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