Monitoring system for railway passenger ticket checking channel

Abstract

The invention discloses a monitoring system for a railway passenger ticket checking channel. Light-emitting curtain bars are divided into first, second, third and fourth light-emitting curtain bars and light-receiving curtain bars are divided into first, second, third and fourth light-receiving curtain bars, thereby forming first, second, third and fourth light-emitting / receiving curtain bar pairs; a synchronous clock generating module is used for generating a synchronous continuous square signal containing a lead code, a detecting pulse code and a stop code; an emitting enable signal generator is arranged; four light curtain controllers are arranged; and a master controller is used for receiving respective working condition sequence information from the four light curtain controllers and the synchronous continuous square signal from the synchronous clock generating module and obtaining a shielded position of a to-be-monitored object according to the position of the detecting pulse code corresponding to a receiver under a shielded state in the respective working condition sequence information of the four light curtain controllers. The monitoring system provided by the invention is high in identification precision and can avoid crosstalk problem and real-time problem between light beams when a distance between infrared emission and receiving units is shorter.

Description

technical field [0001] The invention relates to the field of railway ticket checking, in particular to a monitoring system applied to railway passenger ticket checking channels. Background technique [0002] The usual area detection light curtain generally contains dozens or even hundreds of infrared emitting and receiving points. The problem of crosstalk between beams, that is, the receiver cannot confirm which emission point the beam comes from; secondly, the existing technology has poor real-time performance, so how to design a system with high recognition accuracy and can ensure that when the distance between infrared transmitting and receiving units is small? A monitoring system that avoids the problem of crosstalk between beams has become the direction of ordinary computing personnel in this field. Contents of the invention [0003] The invention provides a monitoring system applied to railway passenger ticket checking channels. The monitoring system has high identi...

AI Technical Summary

Problems solved by technology

[0002] The usual area detection light curtain generally contains dozens or even hundreds of infrared emitting and receiving points. The problem of crosstalk between beams, that is, the receiver cannot confirm which emission point the beam comes from; secondly, the existing technology has poor real-time performance, so how to design a system with high recognition accuracy and can ensure that when the distance between infrared transmitting and receiving units is small? A monitoring system that avoids the problem of crosstalk between beams has become the direction of ordinary computing personnel in this field.

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