System and method for online monitoring turnout junction errors in real time by virtue of state of relay

Abstract

The invention relates to the technical field of rail traffic and particularly relates to a system and a method for online monitoring turnout junction errors in real time by virtue of the state of a relay. The method comprises the following steps: emitting light beams by virtue of a light emitter according to a preset logic time sequence, wherein the light beams can be shielded by an armature of the relay under a suction state; receiving the light beams which are not shielded by the armature by virtue of a light receiver, and generating a corresponding relay logic time sequence; monitoring curve characters of a motor current by virtue of a current sensor; and respectively carrying out comparison on the relay logic time sequence and the preset logic time sequence as well as the curve characters of the motor current and preset curve characters, and when normal data occurs, triggering an assessment mechanism. According to the method, the relay relevant with a turnout junction is monitoredin real time, the working condition of the turnout junction is judged according to the condition whether the light beams are received by the light receiver, and the turnout junction errors can be monitored in real time through the combination with the change state of the motor current.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a real-time on-line monitoring system and a monitoring method for switch faults by using relay states. Background technique [0002] With the continuous development of the rail transit industry, the road network is gradually increasing, the circuit technology is becoming more complex, and the related components and devices are increasing geometrically. These time-limited components will inevitably cause equipment failure. Facing the current situation, how to quickly identify the cause of the fault is a difficult problem for rail transit at present; a higher standard is put forward for more rapid judgment of the fault location, timely treatment and restoration of the impact of the fault, and improvement of operational efficiency. The key part that directly affects the passing capacity of trains is the turnout. The turnout is a line connection conversion device that allows rol...

AI Technical Summary

Problems solved by technology

Since the conversion of the turnout is an extremely complex electromechanical integration process, any abnormality will cause the turnout to fail to work normally; so far there is no complete and detailed monitoring method to accurately locate the fault, especially for occasional and The judgment of self-recovery failure cannot implement effective maintenance

At present, interlocking technology is widely used to judge turnouts, but the variables collected by interlocking technology are all contact circuit information, and the contactable circuit information is not the end of the information, which cannot objectively reflect the equipment failure point. For sporadic and self-recovery failures It is impossible to implement monitoring and processing, and the interlocking technology itself is also part of the track circuit. Once a problem occurs, it cannot effectively give a correct judgment

Some rail transit industries use high-definition cameras to record the actions of relevant brake relay groups as a basis for judgment, but the movement of relay groups has a very meticulous logical relationship, and the action timing between relays is at the millisecond level. They are all stacked, and it is difficult to call and collect data. Therefore, it takes a lot of money to install high-definition cameras and use human eyes to judge relay failures.

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