Fault online diagnosis method of uninsulated track circuit tuning zone equipment

Abstract

The invention discloses a fault online diagnosis method of uninsulated track circuit tuning zone, which relates to the online diagnosis of a track circuit. The method comprises the steps of obtaining cab signal inductive voltage amplitude envelope, shunt point positions, train speed and track circuit signal carrier frequency information, pretreating the data to obtain the length of the track circuit, the quantity and position of compensation capacitors and cab signal inductive voltage normalized amplitude envelope, performing segmented fitting on the cab signal inductive voltage normalized amplitude envelope and establishing corresponding feature vectors, establishing a neural network, training the neural network by utilizing the feature vectors and performing fault diagnosis on the uninsulated track circuit tuning zone equipment, and sending diagnosis results of the tuning zone equipment to a corresponding ground monitoring client-side through a cab signal remote monitoring system. The method has the characteristics of being complete in functions, high in detection accuracy, high in applicability, simple in method, good in real-timeness and the like, no any hardware equipment is added in the method based on the existing cab signal system, and the cost is low.

Description

technical field [0001] The invention relates to the field of railways, and relates to a fault diagnosis method, in particular to an on-line diagnosis method for equipment faults in a tuning area of ​​a non-insulated track circuit. technical background [0002] Trains run on the line, and the guarantee of driving safety and the improvement of operating efficiency are realized by the corresponding train operation control system. As one of the key devices of the system, the track circuit plays an important role in train positioning, integrity check, and continuous transmission of ground-workshop running commands. At present, the non-insulated track circuit has been widely used throughout the country due to its strong anti-interference ability and easy realization of traction return. The so-called non-insulated track circuit uses the two rails of the railway line as conductors, and the signal sending equipment and the receiving equipment are respectively connected at both ends ...

AI Technical Summary

Problems solved by technology

The main disadvantage of this method is that it can only determine whether there is a fault in the tuning area, but cannot locate the fault. At the same time, it needs the cooperation of professionals and special software and hardware equipment, so there are problems of low detection performance and relatively high detection cost. question

In addition, the comprehensive inspection vehicle usually only runs once every 15 days or so, which means that there are also shortcomings in the timeliness of inspection.

It can be seen that with the rapid development of railways and the increase of transportation volume, the traditional equipment fault diagnosis method in the tuning area can no longer meet the requirements of state monitoring and fault diagnosis in the tuning area of ​​the track circuit

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