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A two-dimensional code design method for AGV positioning and navigation

A technology of two-dimensional coding and design method, which is applied in the fields of information coding and machine vision recognition, can solve the problems of easy blurring of images, high price, and difficulty of two-dimensional code image recognition, and achieves the effect of fast travel deviation and reduced hardware cost.

Active Publication Date: 2020-08-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-speed camera at the bottom of the robot can capture clear images of the road surface when moving at high speed, but the high-speed camera is expensive, and the image of the ordinary camera is easy to blur when shooting high-speed moving objects, and it is very difficult to recognize the blurred QR code image, and Inertial navigation is expensive

Method used

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  • A two-dimensional code design method for AGV positioning and navigation
  • A two-dimensional code design method for AGV positioning and navigation
  • A two-dimensional code design method for AGV positioning and navigation

Examples

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Embodiment

[0063] This embodiment provides a two-dimensional code design method for AGV positioning and navigation, including the following:

[0064] 1. The design of coding signs

[0065] The coded logo can be quickly identified even if the image is blurred, the coded logo is as attached figure 1 As shown, 1 in the figure represents the first navigation pattern, 2 represents the second navigation pattern, 3 represents the third navigation pattern, 4 represents the fourth navigation pattern, 5 represents the fifth navigation pattern, 6 represents the positioning pattern, 7 denotes an encoding pattern (encoding area). The positioning pattern is rotation invariant. The positioning pattern is placed at any angle, and the progressive scan pattern meets:

[0066] Black border: white border: black border: white border: black border=1:1:3:1:1

[0067] With this feature, progressive scan images can quickly find the registration pattern. The navigation pattern is also rotation invariant, sat...

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Abstract

The invention discloses a two-dimensional coding design method for AGV positioning and navigation. The method comprises steps: (1) a coding mark is designed, a manual coding two-dimensional code markwith two main functions of navigation and positioning is designed, and an image is ensured to be quickly and accurately recognized in a blurred condition; (2) an AGV vision system model is designed, based on the characteristics of the manual coding mark, the AGV vision system model is designed, conversion of the mark image recognized by the AGV under different coordinate systems is ensured, and the recognition precision is improved; (3) a coding representation quick recognition method comprises image preprocessing, positioning pattern recognition, navigation pattern recognition and coding pattern information analysis, and through accurate recognition of a ground coding mark, the information contained in the coding can be quickly acquired; and (4) an automatic navigation control strategy ofthe AGV is made, based on the recognized coding mark information, the information is converted to AGV control signals, and the AGV is controlled to execute a corresponding command. The method can stably and quickly recognize the manual coding mark by the AGV under high speed motion.

Description

technical field [0001] The invention relates to the fields of information coding and machine vision recognition, in particular to a two-dimensional code design method for AGV positioning and navigation. Background technique [0002] my country is a big country with the Internet, the number of Internet users is the largest in the world, e-commerce is developing rapidly in my country, and online shopping is very popular in my country. As an important link in the online shopping process, logistics affects consumers' online shopping experience. Consumers hope to obtain the purchased goods as quickly as possible, but the actual situation is that consumers usually have to wait for a few days, or even more than a week during e-commerce activities, which greatly reduces the availability of online shopping goods, and consumption Satisfaction has also been significantly reduced. [0003] The application of Automated Guided Vehicle (AGV) in the logistics industry is a new model forme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 谢巍廉胤东
Owner SOUTH CHINA UNIV OF TECH
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