A positive azimuth towing guidance method for road rescue equipment based on license plate location

Abstract

The invention discloses a positive azimuth towing guidance method of road rescue equipment based on license plate positioning. The method combines the structure of road rescue equipment and the characteristics of positive azimuth towing operation, firstly, a region of interest of the license plate is set. Then Gaussian smoothing filtering and gray stretching are performed on the image of this region, and vertical Sobel edge detection and binarization are carried out. Secondly, the binary image is processed morphologically, and the license plate location is realized according to the algorithm of selecting the candidate region and the effective region of the license plate. Then according to the determined license plate center to implement towing guidance, and finally the Kalman filter is used to predict and set the next frame of the image of the license plate of interest, so as to improve the rescue efficiency and safety performance of road rescue equipment. The guidance method providedby the invention has good real-time performance, environmental adaptability and anti-interference ability, and effectively improves the rescue efficiency of the road rescue equipment.

Description

technical field [0001] The invention belongs to the field of intelligent operation of road rescue equipment, and in particular relates to a method for inducing towing and pulling of road rescue equipment based on license plate positioning. Background technique [0002] With the continuous growth of social economy and the acceleration of urbanization, the road traffic infrastructure conditions have gradually improved, my country's automobile industry has developed rapidly, and the number of motor vehicles has increased significantly year by year. We have gradually entered the era of motorization. However, while enjoying the convenience brought by cars, traffic accidents caused by improper driving or vehicle failures occur frequently, which has become the public safety issue that the masses and government departments are most concerned about. Therefore, road traffic emergency rescue, as an important part of national public security capacity building, has gradually become one o...

AI Technical Summary

Problems solved by technology

In the traditional towing operation in the positive direction, the efficiency of aligning the front wheel of the trailer with the support arm of the road rescue equipment mainly depends on human factors such as the driver's technical experience, and it usually requires repeated reversing to adjust the position. Correction, the operation takes too long and the rescue efficiency is low

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