Method for positioning mobile robots on basis of digital letter recognition

A technology of mobile robots and digital letters, applied in ground navigation, navigation calculation tools, etc., to achieve the effects of flexible deployment, easy reading, and low cost

Active Publication Date: 2018-03-09
河南冠晶半导体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on the positioning accuracy and cost issues in the prior art, the present

Method used

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  • Method for positioning mobile robots on basis of digital letter recognition
  • Method for positioning mobile robots on basis of digital letter recognition
  • Method for positioning mobile robots on basis of digital letter 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 method for positioning mobile robots on the basis of digital letter recognition. The method includes manufacturing identification pictures and setting number identification for acquiring coordinate information and angle identification for acquiring direction and angle information on the identification pictures; placing working regions of the robots in world coordinate systems, laying a plurality of identification pictures in each working region and creating number identification-coordinate comparison tables; recognizing the number identification when the identificationpictures are photographed in robot advancing procedures, comparing the number identification to the number identification-coordinate comparison tables and acquiring the coordinate information corresponding to the current number identification; recognizing the angle identification and acquiring current advancing directions of the robots and deviation angles relative to the world coordinate systems. The method has the advantages that identification, which contains the coordinate information, in the identification pictures is digital letters, accordingly, sufficient number information can be acquired by the aid of the method and is easy and convenient to read, and information can be corrected read without alignment regardless of scanning at optional angles.

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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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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