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Trouble of moving freight car detection system (TFDS) block key loss fault automatic identification method

A technology for automatic identification and key blocking, which is used in character and pattern recognition, instruments, computer parts, etc.

Inactive Publication Date: 2013-04-10
HUBEI UNIV OF TECH
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an automatic identification method for the failure of TFDS gear key loss in view of the above-mentioned prior art, so as to effectively solve the problems of low manual detection efficiency and high labor intensity

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  • Trouble of moving freight car detection system (TFDS) block key loss fault automatic identification method
  • Trouble of moving freight car detection system (TFDS) block key loss fault automatic identification method
  • Trouble of moving freight car detection system (TFDS) block key loss fault automatic identification method

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Embodiment Construction

[0022] In order to describe the technical content, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with specific implementation methods and accompanying drawings.

[0023] like figure 1 Shown, the present invention comprises the following steps:

[0024] Step 1: The TFDS outdoor image acquisition equipment captures real-time dynamic images of key parts such as the bogie, braking device, coupler buffer device, undercarriage, and both sides of the car body of the passing train, and transmits them to the train inspection station through the optical fiber network.

[0025] Step 2: For the original image collected by TFDS (such as figure 2 (a) and (d)) are preprocessed, and the median filter is applied to eliminate the influence of the shooting environment on the original image.

[0026] Specifically, the median filter is a nonlinear spatial filter. It has good denoising ability for many random noises, and ...

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Abstract

The invention relates to a block key loss fault automatic identification method of a train fault track side image detection system, and belongs to the field of railway detection. A trouble of moving freight car detection system (TFDS) block key loss fault automatic identification method is characterized by including the following steps: (1) preprocessing images collected by a TFDS so as to eliminate the influence of shot environments on original images, and then processing denoising images in a picture segmentation mode; (2) positioning train axles and through holes through Hough circle transformation, and indirectly calibrating a block key target area according to the geometrical relationship among an axle area, a through hole area and a block key area; and (3) judging whether block keys are lost or not by analyzing the gray level transformation of the block key target area. By means of the TFDS block key loss fault automatic identification method, the accurate positioning of a fault area is achieved, the recognition rate of a block key loss fault is improved, and thus practical value is high, and a foundation is laid for the engineering application of train fault image automatic identification.

Description

technical field [0001] The invention relates to image analysis and processing technology, in particular to an automatic identification method for a fault key loss of a train fault trackside image detection system (TFDS), which belongs to the field of railway detection. Background technique [0002] For a long time, my country's train technical inspection (referred to as train inspection) has basically relied on train inspectors to "touch, hammer, see, hear, and smell", which is inefficient, labor-intensive, and the quality of work is easily affected by weather, trains, etc. Inspector quality and fatigue and other factors. Therefore, the traditional manual train inspection method is becoming more and more difficult to adapt to the needs of heavy-duty, high-speed and high-density train operation under the new situation. Aiming at the key factors of railway train safety, optical, electronic, infrared and other technologies are used to dynamically monitor the running status of t...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/38
Inventor 孙国栋冯维赵大兴王璜
Owner HUBEI UNIV OF TECH
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