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

Measuring method for swaying quantity of unstable platform in reference mode

A technology of stable platform and reference mode, which is applied in the directions of measuring devices, photogrammetry/video metrology, surveying and navigation, etc. It can solve the problems that the reference platform is prone to shaking, high-precision determination of the static reference of the unstable platform, etc., to achieve The effect of simplified configuration

Active Publication Date: 2012-12-19
NAT UNIV OF DEFENSE TECH
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the theodolite works directly under the quasi-moving reference of the vehicle-mounted platform. Since there is no fixed reference, and the vehicle-loaded platform may be parked on the ground in various road conditions, the reference platform is prone to shaking during work, especially in the state of high-speed tracking and measurement. Therefore, determining the static benchmark of the unstable platform with high precision becomes the key to the problem

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
  • Measuring method for swaying quantity of unstable platform in reference mode
  • Measuring method for swaying quantity of unstable platform in reference mode
  • Measuring method for swaying quantity of unstable platform in reference mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The basic idea is as figure 1 As shown, two high-resolution cameras and an absolute horizontal reference are fixed on the ground, and the cooperation mark is fixedly connected with the unstable platform, and the camera images the unstable platform and the absolute horizontal reference in real time, by comparing the current moment with the initial state Calculate the absolute attitude change of the current unstable platform.

[0017] Take any three points of the platform cooperation logo to establish a local coordinate system O s -X s Y s Z s , in order to simplify the calculation process, the camera coordinate system is directly calibrated on the absolute horizontal datum, and the three-dimensional coordinates of the cooperative marker point in the absolute horizontal datum coordinate system are measured through the intersection of binocular lines, then a point p in the local coordinate system i Point P corresponding to the camera coordinate system i There are the ...

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 provides a real-time high-precision measuring method for relative and absolute horizon reference swaying quantity of a platform. The method is as follows: a high resolution camera fixed in inertial space is used for simultaneous imaging of an absolute horizon reference and a cooperation sign on an unstable platform; pose relationship between a relative horizon reference and an absolute horizon reference of a coordinate system of the cooperation sign on the unstable platform is obtained by using pose estimation algorithm; since the cooperation sign and the unstable platform are in fixed connection, pose parameters of relative and absolute horizon references of the unstable platform can be determined therefrom.

Description

technical field [0001] The present invention mainly utilizes the camera measurement technology to determine the absolute shaking amount of the attitude of the unstable platform in real time and with high precision. Background technique [0002] Most domestic shooting ranges use fixed tower photoelectric theodolites with high precision, but due to their fixed range of action, the application of fixed tower photoelectric theodolites has been greatly restricted with the increasing mobility requirements of modern weapons and equipment. The vehicle-mounted mobile type installs the theodolite directly on the vehicle-mounted platform, and the theodolite can work directly on the vehicle-mounted platform, which can meet the requirements of tracking and measuring the target in real time at different locations and at different times. It has strong mobility and makes up for the shortcomings of the fixed tower-type theodolite. Adapted to the rapid response capabilities of the troops. Ho...

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): G01C11/00
Inventor 张小虎朱肇昆尚洋于起峰
Owner NAT UNIV OF DEFENSE TECH
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