Dual-camera overhead line system geometric parameter detection device

By using a dual-camera contact network geometric parameter detection device with opposing cameras and lasers, the problem of detection accuracy under sunlight interference is solved, achieving high-precision and stable contact network geometric parameter detection, adapting to complex lighting conditions, and improving detection efficiency and equipment lifespan.

CN223727071UActive Publication Date: 2025-12-26CHINA RAILWAY XIAN GRP CO LTD
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Patent Information

Application Number
CN202520160982.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2025-12-26
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

In open-air environments, glare and spot effects caused by sunlight interference affect the accuracy and stability of contact wire geometric parameter detection, which is difficult to effectively suppress with existing technologies.

Method used

The device employs a dual-camera contact network geometric parameter detection system, which includes a first camera and a second camera positioned opposite each other, as well as a laser located between the two cameras. The laser emitted by the laser is perpendicular to the cross-section of the encapsulation shell. The cameras are encapsulated within the overall encapsulation shell and have the ability to autonomously switch working modes to adapt to different lighting conditions.

Benefits of technology

It enables continuous and high-precision detection of contact network geometric parameters under strong sunlight during the day, has strong environmental adaptability and flexibility, improves detection efficiency, and extends equipment life by protecting the camera and laser through a casing.

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Abstract

The utility model relates to the technical field of contact networks, and discloses a double-camera contact network geometric parameter detection device, which comprises a first camera, a second camera and a laser, the first camera and the second camera are oppositely arranged at the top of an installation main body, and the laser is positioned between the two cameras, so that high-precision double-view-angle shooting of the contact network is realized. The device can ensure that at least one camera works normally under any natural illumination condition, a clear overhead line system image is acquired, pixel coordinates of the bottom of the contact line in the image are accurately found out through an image processing algorithm, and the geometric position of the contact line in an actual space is calculated through a coordinate system. Besides, the device has the capability of autonomously switching the working modes of the double cameras, can realize continuous high-precision detection in a strong sun illumination environment in the daytime, is suitable for any geometric detection method of the overhead line system, has strong environmental adaptability, universality and flexibility, and improves the detection efficiency at the same time.
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