Railway line foreign substance detection method and system based on radar and image analysis

Abstract

The invention discloses a railway line foreign substance detection method and system based on radar and high-definition image analysis. In the method, the advantage that a microwave radar senses a moving object in real time is fully utilized, a real-time high-definition video stream of the moving object is acquired by use of high-definition video equipment; then the moving object is analyzed in combination with the advantage and the real-time high-definition video stream so as to judge whether the moving object is an foreign substance object needing to be warned. Warning in different grades can be performed for sizes and types of different foreign substance objects so as to improve the detection precision and the response speed for an invasive foreign substance. Compared with the prior art, according to the railway line foreign substance detection method and system based on radar and high-definition image analysis, the effect that the invasive foreign substance in a railway line is accurately sensed and warned in real time can be implemented, the omission detection rate and the false alarm rate are effectively reduced, a major accident caused by invasion of the foreign substance isavoided, and the method and the system have good application prospects in the field of railway line safety.

Description

technical field [0001] The invention belongs to the technical field of rail transit safety, and relates to a method and system for detecting foreign matter on a railway line based on radar and image analysis. Background technique [0002] In recent years, with the increasing intensity of my country's railway construction, especially in the construction of high-speed railways, the country has invested a lot of manpower and financial resources in development and construction. It also makes my country's high-speed rail technology in the forefront of the world, becoming a new business card of our country. At the same time, with the continuous increase of train speed, the safety requirements for railway lines are also getting higher and higher. To ensure the safety of train operation, in addition to the reliable quality of the train and the railway foundation itself, residents, animals, and various foreign objects caused by bad weather such as branches, falling rocks or artifici...

AI Technical Summary

Problems solved by technology

Although this method can detect whether there are foreign objects on the railway track under certain conditions, its defects are also obvious. (1) The same object reflects different wavelengths of electromagnetic waves in different weathers, such as for railway tracks , if the track is frozen in heavy rain or even heavy snow, the wavelength reflected by the electromagnetic wave will be affected, so this method is extremely vulnerable to the influence of the weather

(2) Only using the area array CCD to obtain the size of the foreign matter, so that the detailed outline information of the foreign matter cannot be obtained, and the foreign matter cannot be accurately classified

In addition, the difference in distance will also affect the imaging size of the object on the CCD, so that the real size of the object cannot be accurately obtained only by using the imaging size

(3) The installation position of the equipment is required to be lower than the track, which leads to the limited range of radar equipment and is easily damaged by man-made, so that the actual foreign object recognition and warning effectiveness cannot be exerted

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