Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Photoelectric detection system based ground vehicle accurate positioning orientation method

A photoelectric detection and precise positioning technology, applied in the field of navigation and positioning, can solve the problem that the positioning and orientation accuracy of the land navigation system cannot meet the requirements of specific tasks, and achieve the effect of eliminating susceptible to interference, ensuring the success rate, and improving the level of positioning and orientation accuracy.

Inactive Publication Date: 2007-08-08
BEIHANG UNIV
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem of the present invention is to provide a method for quickly and accurately determining the position and heading of ground vehicles using the photoelectric detection system in view of the fact that the positioning and orientation accuracy of the existing land navigation system cannot meet the requirements of specific tasks

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
  • Photoelectric detection system based ground vehicle accurate positioning orientation method
  • Photoelectric detection system based ground vehicle accurate positioning orientation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The specific implementation process of the present invention will be described below by taking the situation in the plane coordinate system as an example.

[0016] Fig. 1 has provided the schematic diagram of principle of the present invention, and in Fig. 1A, the ground vehicle is positioned at the origin of coordinates, and the true heading points to the north, and when the initial heading angle has no error, the three straight lines determined by the positions and azimuth angles of the three mark points will be Intersect at one point, which is the real position of the vehicle. However, when there is an error in the initial heading angle, the three straight lines no longer intersect at one point, but intersect at three points, as shown in FIG. 1B .

[0017] Assume that the ground vehicle is located at the origin of the coordinates, that is (x, y) = (0, 0), and the true heading is north, that is, ψ T =0°, the positions of the mark points are respectively (x Li ,y Li...

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 ground vehicle precise positioning and directional method based on the photoelectric detection system: in the vehicle is equipped with the inertial navigation system INS or DR system and photoelectric detection system, and after the vehicle entering the correction region and stopping, using the current INS or DR system position and direction as the vehicle initial location and the initial direction angle; using the photoelectric detection system measures the angles between the three sign points and the vehicle in turn, and from the vehicle's initial direction angle to obtain the azimuth of three sign points; from the above three sign points known positions and the measured azimuth making three straights, to produce an error triangle, which estimates the INS or DR system location and direction angle error; finally, correcting the output of vehicle INS or DR system, to improve positioning and directional accuracy. The invention is not dependent on GPS, and its implementation is very simple and rapid, and it can also serve the multiple ground vehicles at the same time, which provide a new technical way for the fast and accurate positioning and directional of ground vehicles before the tasks.

Description

technical field [0001] The invention relates to a method for accurately determining the position and heading of a ground vehicle by using a vehicle-mounted photoelectric detection system to measure angle information between three known marker points and a ground vehicle, and belongs to the technical field of navigation and positioning. Background technique [0002] Modern warfare has put forward higher and higher requirements for the combat performance of vehicles and weapons (such as self-propelled artillery, tanks, armored vehicles, etc.) that undertake combat tasks. They must have good mobility and flexibility, and at the same time need to know where they are Position and direction, so as to achieve organic joint defense and effective strike against the enemy. Therefore, the Land Navigation System (LNS, Land Navigation System) has become an important part of the modernization of army equipment in developed countries in the world. LNS is the basic element of informationiz...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/26G01C21/28G01C21/20G01C21/16
Inventor 冯培德王玮王丹高文
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com