Method and device for measuring position and attitude in space

A measuring device and measuring method technology, applied in measuring devices, optical devices, instruments, etc., can solve the problems of high price, inability to realize length measurement, poor effect of three Euler angles, etc., and achieve low price and high use The effect of value and performance-price ratio and good market prospects

Inactive Publication Date: 2002-05-01
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for precise measurements over large areas without being influenced from external influences or requiring expensive equipment. Its technical effect includes improved accuracy and ease of implementation during manufacture processes while maintaining cost efficiency through reduced costs associated with hardware components like sensors and data processing devices.

Problems solved by technology

This patented technical problem addressed in this patents relates to accurately determining 3Eormodic Angles (the angular positions) within a rigged object's location without expensive specialized instruments like coordinate measurements systems or scanners. Additionally, current methods require multiple steps with different orientations before being able to measure both rotational and linear components simultaneously due to their limitations on accuracy.

Method used

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  • Method and device for measuring position and attitude in space
  • Method and device for measuring position and attitude in space
  • Method and device for measuring position and attitude in space

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Embodiment Construction

[0022] See also figure 1 and figure 2 , to introduce the operation steps and working principle of the method for measuring the full space position and attitude of the present invention: first, a motion coordinate system oxyz is established on the space motion rigid body 20, and then on a relatively fixed object 30, that is, when measuring A fixed coordinate system OXYZ is established on the reference object, the position of the space moving rigid body 20 relative to the fixed object 30 is expressed by the coordinates of the origin o of the moving coordinate system oxyz in the fixed coordinate system OXYZ, and the attitude of the moving rigid body is It is represented by three Euler angles of the moving coordinate system oxyz relative to the fixed coordinate system OXYZ. Next, set three ball seats 21 on the moving rigid body 20 (that is, the moving coordinate system oxyz), which are respectively A 01 、A 02 、A 03 (exist figure 2 Only one of the tees is shown in ), and the...

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Abstract

A method for measuring the space position and attitude of a target is characterized by use of said present invented large-size ball-rod instrument to measure distances, and includes such steps as measuring the distances from three fixed points on the rigid body moving in space to the three fixed point in a fixed coordinate system to obtian 9 central distances, reading them from the display of said ball-rod instrument or computer, listing 9 non-linear equations, and analyzing them to obtain the space position and attitude of said rigid body. Its advantages are simple method, low cost and high precision.

Description

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Claims

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Application Information

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Owner BEIJING UNIV OF POSTS & TELECOMM
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