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Automatic charging system and method based on backup camera

A reversing image and automatic charging technology, which is applied to electric vehicle charging technology, charging stations, electric vehicles, etc., can solve the problem of high cost, achieve high positioning accuracy, improve reliability, and ensure charging efficiency.

Active Publication Date: 2021-03-30
GUOCHUANG INNOVATION CENTER OF MOBILE ENERGY (JIANGSU) CO.,LTD.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an automatic charging method to realize unmanned charging, high-precision positioning, and low-cost charging, so as to solve the problem of high cost in the existing automatic charging methods

Method used

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  • Automatic charging system and method based on backup camera
  • Automatic charging system and method based on backup camera
  • Automatic charging system and method based on backup camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of automatic charging method based on reversing image, it is characterized in that comprising the steps:

[0028] Step 1. Target recognition:

[0029] Such as figure 1 As shown, set the color anchor point A on the charging pile. After the vehicle is parked, the reversing image is taken to obtain a photo containing the positioning point A. What target recognition adopted is the recognition algorithm meanshift algorithm (prior art) based on color, and concrete steps are as follows:

[0030] (1) Select a search box W in the color distribution diagram;

[0031] (2) Calculate the zero-order matrix M 00 =∑∑I(x,y); where

[0032] (3) Calculate the first-order matrix M 01 =∑∑xI(x,y) and M 10 =∑∑yI(x,y);

[0033] (4) Calculate the size of W;

[0034] (5) Calculate the centroid coordinates of the search box, that is, the centroid coordinates of the color anchor point A.

[0035] Step two, target positioning:

[0036] Utilize the monocular positioning principle o...

Embodiment 2

[0044] An automatic charging system based on reversing images, including:

[0045] The image acquisition unit uses the camera of the reversing image to collect images containing the color anchor points set on the charging pile; the target recognition module uses a color-based recognition algorithm to calculate the centroid coordinates of the color anchor points;

[0046] The target positioning module uses the monocular positioning principle of the reversing image to obtain the three-dimensional coordinates of the color positioning point;

[0047] The coordinate conversion module converts the camera coordinate system into a world coordinate system with the color anchor point as the coordinate origin, and obtains the three-dimensional coordinates of the camera optical center relative to the color anchor point;

[0048] The coordinate superposition module superimposes the matrix representing the distance between the car charging port and the camera light center on the three-dimen...

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Abstract

The invention discloses an automatic charging system and method based on a backup camera, and belongs to the technical field of new energy vehicles. The automatic charging system comprises an image acquisition unit, a target identification module, a target positioning module, a coordinate conversion module, a coordinate superposition module and a control unit. An unmanned charging mode is adopted,and compared with a traditional manual charging method, human resources are saved, and the charging efficiency is guaranteed. The positioning precision is high, and the reliability of automatic charging is improved. According to the invention, the backup camera is adopted for target identification and target positioning, so that the cost is greatly reduced.

Description

technical field [0001] The invention relates to an automatic charging system and method, belonging to the technical field of new energy vehicles. Background technique [0002] Car charging is currently a research hotspot in the new energy vehicle industry, and unmanned charging is the direction of future development. Most of the existing charging piles are manually charged, which reduces the charging efficiency and wastes manpower. Some charging piles use the unmanned charging method, but the traditional binocular positioning method requires the use of two cameras. Although the accuracy is high, the cost of the two cameras is expensive. With the development of the new energy automobile industry, using machines instead of manual work to achieve fully automatic, high-precision positioning and low-cost charging systems has become the goal pursued by the industry. Contents of the invention [0003] The purpose of the present invention is to provide an automatic charging meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/35B60L53/37B60L53/16B60L53/65B60W30/06
CPCB60L53/35B60L53/37B60L53/16B60L53/65B60W30/06Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 黄一凡许波曹云鹏张育铭
Owner GUOCHUANG INNOVATION CENTER OF MOBILE ENERGY (JIANGSU) CO.,LTD.
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