High-speed contact network locator gradient detection method and apparatus thereof based on video analysis

Abstract

The invention discloses a high-speed contact network locator gradient detection method and an apparatus thereof based on video analysis. The method comprises the following steps of: a video acquisition step for acquiring operating environment video of a contact network in real time through a video acquisition device; a data processing step for performing fast detection and accurate location on a locator in the image, and respectively performing acquisition control, analysis and display of images by a multithread processing framework; and a step of obtaining the angle of the locator in an imaging plane coordinate system by a basic image processing operator after detecting out the locator successfully. In the detection method, a high resolution and high frame frequency photographic surveying device is mounted at the roof of a detection car so as to acquire the operating environment video of the contact network, a video camera is mounted in a manner of ensuring an imaging plane thereof to be perpendicular to a working direction of a train, and the angle measurement based on a cross axis of a roof section is transformed to be based on the cross axis of the imaging plane. The method and the apparatus provided by the invention can solve the defect that the prior locator gradient detection method can only detect the gradient when the detection car moves at low speed, and is poor in system flexibility and adaptability.

Description

technical field [0001] The invention relates to the technical field of electrified railway catenary detection technology, in particular to a method and equipment for detecting the slope of a high-speed catenary positioner based on video analysis. Background technique [0002] A locator is a device that supports and determines the lateral position of the contact line relative to the centerline of the line. The slope of the locator is a structural parameter of the catenary itself that is closely related to the safety of the pantograph operation. [0003] to combine figure 1 As shown, a positioning device including a positioner 10 and a positioning tube 20 is shown. When the pantograph is running, the contact force of the pantograph to the catenary will cause the catenary to rise to a certain extent. Therefore, the structure and state of the positioning device (locator, positioning tube, etc.) should ensure that when the pantograph passes the positioning point, the contact l...

AI Technical Summary

Problems solved by technology

[0020] The technical problem to be solved by the present invention is: to provide a high-speed catenary locator slope detection method and equipment based on video analysis, so as to solve the problem that the existing locator slope detection method can only detect when the detection vehicle is running at a low speed, and the system flexibility and poor adaptability

Images