Remote fault diagnosis system of infrared axle temperature detection station

Abstract

The invention relates to a remote fault diagnosis system of an infrared axle temperature detection station, comprising host machines mounted at the dynamic repair shop of a railway car depot and lineside maintenance and repair teams, and extensions mounted at the railway lineside infrared axle temperature detection station. The host machines as well as the host machines and the extensions are connected through telephone networks; each host machine comprises an industrial computer and an industrial computer control card; the industrial computer control card comprises a ringing detecting circuit, an answering circuit, a receiving-sending controller, a CPU module, a code error test circuit, an RS232 interface and a level switching circuit; each extension comprises a ringing detecting circuit, an answering circuit, a receiving-sending controller, a CPU module, a code error test circuit, a speech prompt circuit, a power supply detecting circuit, a power transmission-cutoff control circuit, a battery charging circuit, a voltage monitoring circuit and a noise measuring circuit; the monitoring signaling of the system adopts the dual-tone multifrequency transport protocol; and the code error testing adopts the mode of software, and the algorithm adopts the linear congruence method. The invention provides a technical support means for an infrared axle temperature detection system to cancel weekly check and rapidly handle failures.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a remote fault diagnosis system for an infrared shaft temperature detection station. Background technique [0002] The railway infrared shaft temperature detection station is a safety system for real-time detection, transmission and processing of train shaft temperature distributed along the railway line every 30 kilometers. The infrared shaft temperature detection station system consists of three parts: power supply, communication and detection station, and is installed in unattended machine rooms along the railway. About 5,000 sets of infrared shaft temperature detection stations are installed on the 70,000-kilometer railway line, forming a huge infrared shaft temperature detection network covering the national railway lines. Ensure the safe operation of passenger and freight trains. [0003] Such a huge train axle temperature real-time monitoring system...

AI Technical Summary

Problems solved by technology

All these tasks require maintenance personnel to carry out door-to-door maintenance of detection stations one by one along the railway line. This is a work with a large workload and high cost for the maintenance unit. The railway depot needs to set up a staff of 50-100 for this purpose. The maintenance team spends millions of yuan in maintenance costs every year; when dealing with sudden failures, it takes 1-2 hours to drive hundreds of kilometers. When the personnel arrive, the train passing the fault detection station may pass 10- If there are 20 trains, if there is a hot-axle car, it cannot be found and stopped in time, which will lead to train failure, damage to people's lives and property, and loss to the reputation of the railway.

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