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A Mobile Robot Positioning Method Based on Number and Alphabet Recognition

A technology of mobile robots and digital letters, applied in navigation computing tools, ground navigation, etc., to achieve flexible deployment, wide application, and easy reading

Active Publication Date: 2021-05-14
河南冠晶半导体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the positioning accuracy and cost issues in the prior art, the present invention provides a mobile robot positioning method based on digital letter recognition

Method used

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  • A Mobile Robot Positioning Method Based on Number and Alphabet Recognition
  • A Mobile Robot Positioning Method Based on Number and Alphabet Recognition
  • A Mobile Robot Positioning Method Based on Number and Alphabet Recognition

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] In the method of the present invention, the working area is set in the world coordinate system, and the robot is positioned by setting a picture containing numbers and letters and optical marking points on the ground of the working area as a ground mark, and then the robot is further planned according to the current position route. That is to paste multiple logo pictures on the ground of the work area, each logo picture contains the position information and direction information of the logo picture in the world coordinate system, and the logo is laid out on the ground to form a grid grid, and the mobile robot runs in the warehouse At the same time, the ground mark is read by the camera installed on the mobile robot, and transmitted to the control system through the wireless network, so as to obtain the current position, and pla...

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Abstract

The invention provides a mobile robot positioning method based on digital letter recognition, including: making a logo picture, setting a number logo for obtaining coordinate information and an angle logo for obtaining direction and angle information on the logo picture; placing the robot working area in the world coordinate system , and lay multiple logo pictures in the working area, and establish a number logo-coordinate comparison table at the same time; when the robot is moving, when the logo picture is photographed, it will recognize the number logo and compare it with the number logo-coordinate comparison table to obtain The coordinate information corresponding to the current ID number; identify the angle ID at the same time, and obtain the current traveling direction of the robot and the offset angle relative to the world coordinate system. The logo containing coordinate information in the logo picture of the present invention is a number letter, which has the advantages of sufficient number information and easy reading, and does not require alignment, and the information can be read correctly regardless of scanning at any angle.

Description

technical field [0001] The invention belongs to the field of positioning of mobile robots, and more specifically relates to the positioning of mobile robots based on ground reference marks, which are used to effectively control the correct operation of mobile robots in automated factories or automated warehouses. Background technique [0002] With the advancement of science and technology, the application of mobile robots is becoming more and more extensive, especially in industrial fields such as warehousing logistics and mobile operations. In order to achieve effective control of the correct operation of mobile robots in automated factories or automated warehouses, it is necessary to accurately position mobile robots and plan routes on this basis. Therefore, it is a problem to be solved to seek an accurate and fast method to locate the mobile robot. At present, most mobile robots use RFID, electromagnetic induction technology, machine vision technology and laser technolog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/04G01C21/22
CPCG01C21/04G01C21/22
Inventor 翟晓彤安宁张西平曾劲松刘国宁李和林
Owner 河南冠晶半导体科技有限公司
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