Electric vehicle charging interface visual recognition positioning method and charging system

Abstract

The invention discloses an electric vehicle charging interface visual recognition positioning method and a charging system. By adopting the method, the mechanical structure of the charging interface of the electric vehicle does not need to be greatly changed; compared with the prior art, complex instruments such as laser ranging are not needed, only a monocular camera needs to be additionally arranged on an existing electric vehicle charging gun, the pose of the charging interface can be recognized through one frame of image, and therefore the method is better in adaptability and lower in cost. And the position and posture of the charging interface of the electric vehicle under the camera coordinate system are recognized, so that the charging interface posture recognition method is higherin precision and better in robustness, and the requirement that the mechanical arm is guided to insert the charging gun into the charging interface can be met.

Description

Technical field [0001] The invention belongs to the field of electric vehicle charging, and in particular relates to a visual recognition positioning method of an electric vehicle charging interface and a charging system. Background technique [0002] With the scarcity of fossil energy and increasing environmental pressures, energy conservation and emission reduction have received increasing attention. 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 and time-consuming and laborious, which greatly reduces the user experience. In addition, some misoperations by users may cause corrosion and damage to the charging gun. [0004] Chinese patent number CN 104786865 discloses ...

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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