Track circuit comprehensive detection device

Abstract

The invention discloses a comprehensive detection device for a track circuit. The comprehensive detection device is mainly composed of a steel rail trolley, a current sensor, an electromagnet, an angle encoder, an acquisition processing board, a device power source and an upper computer. According to the device, the steel rail trolley serves as a carrier, other components are all installed on the steel rail trolley, in daily operation and maintenance or troubleshooting operation, the detection device can be used, and measurement of basic parameters (rail surface voltage, steel rail current and section length) of a rail circuit can be achieved by pushing the detection device on a rail. And meanwhile, synchronous detection of various parameters of the track circuit can be realized in combination with an upper computer software algorithm. In the using process of the detection device, power failure is not needed, any track circuit equipment does not need to be dismantled, simplicity and convenience are achieved, and the current track circuit operation and maintenance working condition is improved.

Description

technical field [0001] The invention relates to the field of technical rail transportation, in particular to a comprehensive detection device for rail circuits. Background technique [0002] Track circuit is the basic equipment for train occupancy inspection, widely used in ordinary speed railway and high-speed railway system, and is the core of railway automatic blocking system. The equipment belonging to the track circuit runs from indoors to outdoors, not only has complex and variable inductance and capacitance, but also faces harsh outdoor environments. During the operation of the equipment, it is easily affected by external environments such as traction power supply, public works roadbed, and climate. Faults occur from time to time and the failure modes are changeable, especially problems such as red light bands on low track beds, failure of compensation capacitors, and near-line interference. Faults Troubleshooting and processing is difficult and consumes a lot of man...

AI Technical Summary

Problems solved by technology

Due to the long distance between the moving inspection vehicles and the inability to cover the side lines, problems such as interference coupling, signal detours, and poor traction return flow on the inside of the station are emerging endlessly.

In addition, after the construction of the public works, only by comparing the changes in the centralized monitoring data before and after the construction, the impact of the construction on the track circuit can only be qualitatively judged, and the comprehensive impact of the construction on the transmission parameters of the track circuit cannot be quantitatively analyzed, which is easy to leave hidden dangers

[0004] Conventional track circuit test instruments are small in size and relatively convenient to carry, but the detection function is relatively single, and can only be used for discrete measurements at limited positions on the track circuit

When some instruments are in use, part of the track circuit equipment needs to be removed, which is inconvenient for actual operation. For example, when measuring the resistance of the track circuit track bed according to the double-short circuit method, it is necessary to remove receivers, transmitters, compensation capacitors and other equipment

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