Platform shield door intelligent control method

Abstract

An intelligent control method for platform screen doors is provided, which belongs to the field of automatic control technology. In the method, firstly the images of platform in train pull-in and pull-off states are collected by a CMOS camera and then outputted to a signal processor, the signal processor extracts feature information of the images and produces two basic templates and simultaneously establishes equations and indices for determining image threshold grey level of field image and basic template and error and correlation therebetween; then the filed images are collected by the CMOS camera and outputted to the signal processor, the signal processor processes and identifies the filed images and then produces an accurate control command and outputs the command to a controller; and finally the controller converts the received digital control command to an analog control command and the outputs to a driver, and the driver drives a servomechanism of the screen door after the amplification of the analog control command. The invention has high operational reliability and high identification accuracy, and can ensure the comfort and safety of pick-up and drop-off for passengers.

Description

technical field [0001] The invention relates to a method in the technical field of automatic control, in particular to an intelligent control method for a platform screen door. Background technique [0002] With the rapid development of my country's urban subway and light rail transportation, cities such as Shenzhen and Shanghai have successively installed screen doors on existing subway or light rail platforms in order to improve the riding environment. There is no doubt that installing screen doors on subway or light rail platforms can achieve energy-saving effects on the platform environment control system, and can provide passengers with a safe and comfortable riding / waiting environment. However, the platform screen door directly faces passengers and is the only channel for passengers to get on and off the train. Its operation mode and reliability are directly related to the quality of service provided by the station to passengers, and directly related to the convenience...

AI Technical Summary

Problems solved by technology

[0006] ① In addition to sensing when the shielded door hits an obstacle, there is a lack of automatic detection means for the operating state of the shielded door. The entire device system is only controlled by a program and manually monitored, so the overall degree of automation is not high;

[0007] ②Precisely because the system needs to be intervened and controlled by manual monitoring, there is a problem of human response lag when accidents occur. Therefore, when accidents happen unexpectedly, the tragedy is irreversible;

[0008] ③In an emergency situation, the door can be opened by the passengers getting off the bus by "hand pulling the handle" or "hand pressing the crossbar on the emergency door". This auxiliary means is undoubtedly necessary, but it is unreliable, because most passengers Often do not have these "emergency common sense" or even know nothing about it

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