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Multilateral measurement calibration method, device and equipment, and medium

A calibration method and multilateral measurement technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of unconsidered measurement error and low measurement accuracy, and achieve the effect of improving reliability and measurement accuracy

Active Publication Date: 2022-02-15
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Application Information

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Problems solved by technology

[0004] The main purpose of this application is to provide a multilateral measurement calibration method, device, equipment and medium, aiming at solving the problem of measuring Technical issues with lower accuracy

Method used

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  • Multilateral measurement calibration method, device and equipment, and medium
  • Multilateral measurement calibration method, device and equipment, and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] refer to Figure 1-Figure 2 , the present embodiment provides a multilateral measurement calibration method, comprising the following steps:

[0057] Build a multilateral ranging platform; wherein, the multilateral ranging platform includes a plurality of ranging equipment;

[0058] Move the measuring point within the space area of ​​the multilateral ranging platform, and obtain the distance value from each station point to each of the measuring points; wherein, the station point is the origin of the measuring coordinate system of each of the distance measuring devices ;

[0059] Establishing a first measurement calibration model according to the distance value;

[0060] Acquiring a distance measurement error coefficient, and correcting the first measurement calibration model according to the distance measurement error coefficient to obtain a second measurement calibration model;

[0061] The second measurement calibration model is simulated multiple times through a ...

Embodiment 2

[0104] This embodiment provides a multilateral measurement calibration device on the basis of Embodiment 1, including:

[0105] A platform building module, used to build a multilateral ranging platform; wherein, the multilateral ranging platform includes a plurality of ranging devices;

[0106] The distance value acquisition module is used to move the measurement point in the space area of ​​the multilateral ranging platform, and obtain the distance value from each station point to each of the measurement points; wherein, the station point is each of the measurement points Distance from the origin of the equipment measurement coordinate system;

[0107] A model establishing module, configured to establish a first measurement calibration model according to the distance value;

[0108] A model correction module, configured to obtain a distance measurement error coefficient, and correct the first measurement calibration model according to the distance measurement error coefficie...

Embodiment 3

[0112] This embodiment provides a computer device on the basis of Embodiment 1. The computer device includes a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the computer program described in Embodiment 1. described method.

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Abstract

The invention discloses a multilateral measurement calibration method, device and equipment, and a medium. The method comprises the following steps: building a multilateral distance measurement platform, wherein the multilateral distance measurement platform comprises a plurality of distance measuring devices; moving measuring points in the space area of the multilateral distance measurement platform, and obtaining the distance value from each station point to each measuring point, wherein each station point is an original point of a measurement coordinate system of each distance measuring device; establishing a first measurement calibration model according to the distance values; obtaining a distance measurement error coefficient, and correcting the first measurement calibration model according to the distance measurement error coefficient to obtain a second measurement calibration model; simulating the second measurement calibration model for multiple times through a Monte Carlo simulation analysis method, and obtaining the optimized coordinate values of all the station points. According to the method, the influence of distance measurement errors on calibration precision is fully considered, station calibration optimization is conducted through the Monte Carlo simulation analysis method, and therefore the calibration precision of the multilateral measurement method is improved.

Description

technical field [0001] The present application relates to the technical field of error measurement, and in particular to a multilateral measurement calibration method, device, equipment and medium. Background technique [0002] In the process of three-dimensional space error compensation of CNC machine tools and three-coordinate measuring machines, at least three laser interferometers or laser trackers need to be used for networking, and measurement is performed based on the multilateral measurement method to ensure the accuracy of CNC machine tools or three-coordinate measuring machines. Spatial measurement accuracy. Multilateral measurement method has extremely high precision because it only uses laser interferometric distance measurement as the basis for its coordinate calculation. [0003] In the actual implementation of the current multilateral measurement method, the influence of the measurement error caused by the measurement system is not considered. Therefore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/04
CPCG01B21/045
Inventor 朱绪胜王浩宇谭清中周凡
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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