Control and monitoring system for railway switch location

Abstract

The invention mainly relates to an electronic device used for intelligently controlling and monitoring a track traffic interlocking control point switch, in particular to a system for controlling and monitoring the position of railway points. The invention is characterized in that the electronic device comprises a control mechanism (1), an electrical signal between an execution mechanism (2) and a point switch (5), and a monitoring mechanism (3) for the self-detection of the device; the control mechanism (1) and the monitoring mechanism (3) are connected with an external computer by a communication fieldbus; the execution mechanism (2) is connected with the control mechanism (1) and the point switch (5); the monitoring mechanism (3) is connected with the execution mechanism (2) and the control mechanism (1); the monitoring mechanism (3) is connected with the external computer by a data communication fieldbus. In the invention, the electronic device is adopted for replacing the existing relay contact circuit; an interlocking control device for railway signal is realized by the integration of controlling, monitoring and supervising, therefore, the invention has the advantages of self-detection function, fault position, and stable and reliable work.

Description

Technical field: [0001] The invention mainly relates to an electronic device for intelligent control and monitoring of rail transit interlocking control switch machines, in particular to a control and monitoring system for railway turnout positions. Background technique: [0002] The existing railway signal basic equipment——the switch machine all follow the traditional relay control circuit. At present, the signal equipment widely used in the railway system is electrical centralized equipment. The input control of the relay is connected to multiple groups of relays by the level signal of the electrical command. The action of driving the switch machine is to implement its control operation through the on-off of the relay combined contacts. of. The relay combination requires routine maintenance to ensure reliable contact of the contacts. Moreover, due to the complex wiring of the relay assembly, it is difficult to find faults, and there are inherent defects such as short lif...

AI Technical Summary

Problems solved by technology

Moreover, due to the complex wiring of the relay combination, it is not easy to find faults, and there are inherent defects such as short life, large volume, slow action time, and difficult fault location

The indication circuit composed of relays can only monitor the signal of one turnout position at the same time period, and it is easy to give a false indication signal artificially, resulting in wrong indication of the turnout, causing the train to enter the wrong route by mistake and cause a vicious accident.

In order to achieve fault detection, there is currently a method of adding an auxiliary circuit to the relay control circuit to achieve detection, which cannot fundamentally solve the problem, which greatly restricts the improvement of railway operation safety and transportation capacity

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