Positioning and guiding system and method based on ground road sign

A ground and road sign technology, applied in directions such as navigation, mapping and navigation, and measuring devices, can solve problems such as limited viewing angle, inability to obtain positioning information, and inability to obtain good navigation effects, achieving high positioning accuracy and reducing guidance costs.

Active Publication Date: 2013-03-27
SHANGHAI JIAO TONG UNIV
View PDF9 Cites 44 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention will not be able to obtain a good navigation effect in an environment with insufficient light or when road signs are blocked; at the same time, for a single camera and non-omnidirectional vision, under discontinuous and limited number of road signs, due t...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Positioning and guiding system and method based on ground road sign
  • Positioning and guiding system and method based on ground road sign
  • Positioning and guiding system and method based on ground road sign

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation is provided, but the protection scope of the present invention is not limited to the following embodiments.

[0024] figure 1 Composition module block diagram for the system of the present invention, as figure 1 As shown, in this embodiment, the system provided according to the present invention is oriented to digital assembly tasks, which includes: vision system, ground road signs, AGV car body, embedded controller, wherein the vision system and embedded controller are installed on the AGV On the car body, the visual system includes visual equipment, lighting equipment and a shading cover. The lighting equipment provides enough light to ensure that the camera as the visual equipment can better obtain image information. Im...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses positioning and guiding system and method based on a ground road sign. The positioning and guiding system is characterized by comprising a visual system, the ground road sign, an AGV (automatic guided vehicle) body, and an embedded controller, wherein the visual system is used for obtaining a ground road signal feature image; the ground road sign is a characteristic band composed of black and white templates and is paved on the ground; the embedded controller utilizes a template matching method to compare and match the obtained ground road sign feature image with a characteristic band image in a memory vault, to obtain the position and the gesture of the AGV body according to the position of the feature road sign in the image and a geometrical relationship in a world coordinate system to achieve global positioning and guiding functions. The invention also provides a corresponding method. The black and white dual-color encoding characteristic band is adopted as the ground road sign, and the system also can realize the global positioning besides an automatic guiding function of an AGV. Thus, the foundation is provided for realizing multi-AGV collaborative transportation, assembly and the like, and the system has a good application prospect.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a positioning and guiding method based on vision technology, which is suitable for use in digital assembly, and in particular to a positioning and guiding system and method based on ground road signs. Background technique [0002] Automatic guidance technology mainly includes electromagnetic induction guidance, laser guidance, visual guidance, inertial guidance, ultrasonic guidance and magnetic nails. Among them, visual guidance refers to the image recognition of the environment of the driving area by AGV (Automatic Guided Vehicle) to realize intelligent driving. This is a guidance technology with great potential. The visual sensor receives information passively and is not interfered by other sensors; the amount of information collected by the visual sensor is large, and even after a large amount of information is discarded, it can still navigate the vehicle well. At the same ti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01C21/00
Inventor 冷春涛曹其新方波杜建军杨扬
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap