Automatic pantograph detection method based on active shape model
An active shape model and automatic detection technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of too many devices in the system, cannot be fully covered, and complicated
Inactive Publication Date: 2016-12-28
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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The main disadvantages of this method are: First, the requirements for materials are relatively high. Sensors must be embedded in the pantograph slide, and the material technology requirements are high. Changes in the material structure of the pantograph slide may reduce the service life of the pantograph and improve Second, the sensor cannot cover the entire pantograph carbon slide, so the data obtained is several points, and the wear status of each point cannot be obtained; third, the entire system has many devices and is relatively complicated, and the system installation and maintenance are inconvenient
In view of the poor precision of the current domestic image-based online pantograph detection method, it is urgent to develop a new online automatic detection method for pantograph operating status
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[0093] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0094] like figure 1 As shown, it is a flowchart of an automatic pantograph detection method based on an active shape model according to an embodiment of the present invention. This embodiment includes the following steps:
[0095] Step 10: Obtain a pantograph image learning sample set;
[0096] The pantograph images in this embodiment include at least 50 pantograph images, and some of the collected pantograph images are as follows: Figure 4 As shown, the resolution of each pantograph image remains consistent.
[0097] Step 20: Construct the active shape model of the pantograph;
[0098] In this embodiment, the steps of constructing the pantograph active shape model ...
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The invention belongs to the technical field of computer digital image processing and mode identification, and mainly relates to an automatic pantograph onsite detection method used by an electric traction engine, in particular to an automatic pantograph onsite detection method based on an active shape model. The method includes the steps that a plurality of pantographs are collected through a pantograph onsite photographing system to constitute a pantograph image learning sample set, the active shape model of a pantograph is built on the basis of sample learning, pantograph initial positioning is carried out on newly obtained images and images to be detected, exact matching is carried out on the shape of the pantograph in a single resolution ratio searching algorithm by combination of the pantograph initial positioning result and the active shape model built through learning, and ultimately quantitative detection and analysis are carried out on the basis of an exact matching result. Automatic onsite quantitative detection can be effectively carried out on the thickness of a carbon contact strip of the pantograph, vehicle maintenance can be quickly carried out, and detection cost of the pantograph is saved.
Description
technical field [0001] The invention belongs to the technical field of computer digital image processing and pattern recognition, and mainly relates to an online automatic detection method for a pantograph used by an electric traction locomotive, in particular to an online automatic detection method for a pantograph based on an active shape model. Background technique [0002] Electric traction locomotive pantograph is a device for electrified railway electric locomotive to receive power from catenary. During the actual operation of the locomotive, the carbon slide plate of the pantograph is in direct contact with the catenary wire, and the current is drawn from the catenary wire for the use of the locomotive. In high-speed electrified railway systems, locomotives must maintain a steady state of flow. Damaged pantograph bows and excessive wear of carbon skateboards not only affect the normal power supply of electric locomotives, but even cause interruption of rail traffic. ...
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IPC IPC(8): G01B11/06
Inventor 赵忠明岳安志汪承义
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI