A method for visual recognition and positioning of an electric vehicle charging interface and a charging system

Abstract

The invention discloses a visual identification and positioning method and a charging system of an electric vehicle charging interface. The method of the invention does not need to make significant changes to the mechanical structure of the electric vehicle charging interface, does not require complex instruments such as laser ranging, and only requires A monocular camera is added to the existing electric vehicle charging gun, and the position and orientation of the charging interface can be recognized by using one frame of image, so this method has better adaptability and lower cost. Moreover, the present invention makes the charging interface pose identification method more accurate and robust by recognizing the position and posture of the electric vehicle charging interface in the camera coordinate system, and can meet the requirements of guiding the mechanical arm to insert the charging gun into the charging interface.

Description

technical field [0001] The invention belongs to the field of electric vehicle charging, and in particular relates to a method for visual recognition and positioning of a charging interface of an electric vehicle and a charging system. Background technique [0002] With the shortage of fossil energy and the continuous increase of environmental pressure, people pay more and more attention to energy conservation and emission reduction. Electric vehicles use electric energy instead of fossil energy, which can significantly alleviate the problem of environmental pollution. Therefore, in recent years, the electric vehicle industry has received strong support from the state. [0003] The traditional charging process of electric vehicles requires manual plugging and unplugging, which is complicated, time-consuming and laborious, and greatly reduces the user experience. Moreover, some misoperations by users may cause corrosion and damage to the charging gun. [0004] Chinese Paten...

AI Technical Summary

Problems solved by technology

[0003] The traditional charging process of electric vehicles requires manual plugging and unplugging, which is complicated, time-consuming and laborious, and greatly reduces the user experience

Moreover, some misoperations by the user may cause corrosion and damage to the charging gun

[0004] Chinese Patent No. CN 104786865 discloses a charging and docking device and method for electric vehicles based on monocular vision, which uses a horizontal chute and a longitudinal chute as the actuator of the mechanical arm, which makes the charging device only adaptable to the charging interface car with horizontal orientation

In the actual scene, the charging interface of many cars has a certain angle of inclination, and the device cannot adapt to this situation

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