Machine vision based technical inspection and detection system and method for railway trains

Abstract

The invention discloses a machine vision based technical inspection and detection system and method for railway trains and belongs to the field of technical inspection on railway freight trains. According to the system, a light-duty rail, a portable moving device, a laser device, an optical image acquisition device and a wireless transmitting device are arranged outside a train inspection room; a wireless receiving device, a communication management server, a control server and a central server are arranged in the train inspection room. According to the system and the method, the automation and the intellectualization of technical inspection on the railway trains are achieved through controlling the portable moving device running on the light-duty rail, automatically acquiring image and video data on the bottom of a vehicle, carrying out data processing and outputting a current state of each component of the vehicle, an air testing test result and a repair processed result. According to the system and the method, manpower can be replaced for outdoor vehicle guarding operation, and the high quality, the accuracy and the reliability of train inspection can be guaranteed; the system and the method can adapt to various climatic conditions and natural environments and high-strength operation, so that the work efficiency of train inspection is increased.

Description

technical field [0001] The invention belongs to the field of technical inspection of railway freight trains (hereinafter referred to as train inspection), and specifically relates to machine vision technology, automatic control technology, pattern recognition technology, railway vehicle maintenance regulations, railway vehicle technology inspection and detection systems and methods. Background technique [0002] Train technical inspection, referred to as train inspection, is a technical inspection of the entire train at the station after the train has been marshalled and before it is driven, or after the train arrives and before it is disassembled. The inspection before the train is driven is the departure inspection, and the inspection after the train arrives is the arrival inspection. When the train only stays for a short time or when there is an operation of adding or dropping trains, the train must also be inspected, which is called passing train inspection or transit tr...

AI Technical Summary

Problems solved by technology

The technical inspection of freight trains adopts a manual operation method, which has the following problems: (1) Obtaining vehicle information through the back and forth displacement of the operating technicians on the site, and judging whether the vehicle is faulty or not, the single mode of the artificial naked eye cannot realize complete, Accurately find out where the problem lies; (2) In the environment where the on-site technical workers have long working hours, high labor intensity, and complex weather conditions, they are prone to fatigue, which leads to artificial missed inspections, false inspections, and missed repairs; (3) Vehicle manufacturing The dynamic system test is completed within the specified time. At present, it is easy to misjudge the braking test by repeating a single run on the rail to observe the state of the brake wind test process, which will bring serious accident hazards to the operation of the vehicle; ( 4) Due to the fatigue of technical workers and the repetition of the operation process, it is inevitable to violate the operation process in the process of handling the fault, and the lack of strict supervision mechanism and review mechanism will cause secondary fault hidden dangers after the fault is resolved, and even cause train accidents after driving. accident or casualty

[0005] To sum up, the existing manual train inspection operation method is single and repetitive, with high failure rate, unfriendly working environment, and low work efficiency, which is difficult to cope with important and heavy train inspection work

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