A Method for Charging Holes Identifying in Electric Vehicle Automatic Charging System

The identification and positioning of charging holes is a necessary step in the automatic charging system of electric vehicles. An automatic identification and positioning method for charging holes is introduced in this paper. The precise location of charging holes can be obtained by this method based on machine vision, collecting and processing images. The implementation process and results of filtering, spatial conversion, HSL color adjustment, contour detection, Hough circle detection, and other steps are described in detail. At the same time, There is also a certain description of the impact of parameters in the process. The exception phenomena in the experimental process such as the error caused by too few image and multiple minimum circles during the experiment are analyzed and targeted solutions are provided in this paper. At last, it is experimentally verified that using this method to process and analyze the captured image can achieve the goal of charging hole recognition and positioning.