Vehicle speed measurement method, device, system, electronic equipment and storage medium

Abstract

The present application discloses a vehicle speed measurement method, device, system, electronic device and storage medium, which relate to the technical field of speed measurement and can measure the vehicle speed more simply. The vehicle speed measurement method comprises: obtaining the position coordinate value of the first original image in one frame of video image and the position coordinate value of the second original image in another frame of video image of a designated part on the vehicle to be tested; An original image position coordinate value and the second original image position coordinate value are respectively input into a pre-established mapping model, and the corresponding first physical position coordinate value and second physical position coordinate value are obtained; according to the first physical position coordinate value and the coordinate value of the second physical position to determine the actual moving distance of the vehicle to be tested; according to the actual moving distance of the vehicle to be tested and the interval time between the one frame of video image and the other frame of video image, determine the actual moving distance of the vehicle to be tested. the speed of the vehicle to be tested. The present application is adapted to the measurement of vehicle speed.

Description

technical field [0001] The present application relates to the technical field of speed measurement, and in particular to a vehicle speed measurement method, device, system, electronic equipment and storage medium. Background technique [0002] Vehicle speed monitoring is of great significance to the work of the traffic department. Using the vehicle speed monitoring system can monitor the speed of vehicles on speed-limited roads to limit speeding. [0003] Vehicle speed monitoring can be roughly divided into active measurement and passive measurement. Among them, the active measurement relies on the specially installed speed measuring equipment or software system in advance, and the method of measuring the speed of vehicles in a specific area at a fixed location is the pre-measurement; The method of vehicle speed measurement is post-event measurement. [0004] The above-mentioned speed measurement method has obvious defects: the active measurement method can only measure th...

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Problems solved by technology

[0004] The above-mentioned speed measurement method has obvious defects: the active measurement method can only measure the vehicle speed at a fixed location, the scope of application is not wide, and the preliminary layout work is also very cumbersome

However, in order to calculate the measured distance, there needs to be reference objects or marking lines that have not changed in the video to determine the start and end measurement points (such as zebra crossings, isolation piles, trees, etc.), and use these reference objects for spatial modeling calculations , and as a passive measurement method (no reference objects are arranged in advance), the probability of finding a qualified reference object in the video that has not changed is relatively small, and its size must be re-measured afterwards; The device calculates the moving distance in proportion to the size in the plane. However, this requires the shooting angle and requires the lens to be perpendicular to the road surface, so the application is very limited.

[0005] For how to measure vehicle speed more easily, there is no effective solution in the relevant technical field

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