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Contact pressure measurement model construction method based on image processing

A technology for measuring model and contact pressure, applied in image data processing, image analysis, instruments, etc., can solve the problems of random operation, uncontrollable errors, uncontrollable errors, etc., to remove uncontrollable errors, reduce dispersion, The effect of improving production quality

Active Publication Date: 2021-09-03
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current common measurement method is manual measurement. Because people's perception of tiny forces is not accurate, even the same person can measure different forces at different times, which causes uncontrollable errors and affects the production quality of relays.
Therefore, we propose a method for constructing a contact pressure measurement model based on image processing to solve the above-mentioned problems of uncontrollable error, scattered, random and complex operation of the manual measurement method

Method used

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  • Contact pressure measurement model construction method based on image processing
  • Contact pressure measurement model construction method based on image processing
  • Contact pressure measurement model construction method based on image processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] On the basis of the above content, this embodiment can build a moving contact pressure measurement model, specifically, the following steps:

[0073] Collect at least two complete images of the static contacts of the relay;

[0074] The pictures corresponding to each set of complete images are extracted to form a corresponding picture set.

[0075] Extract some random pictures from any set of pictures;

[0076] Cut random pictures to make corresponding static contact templates;

[0077] Get three pictures of different states in any set of pictures, including the picture of no contact between the moving contact and the static contact, the picture of stable contact between the moving contact and the moving contact, and the picture of only the moving contact and the moving contact Steady exposure to pictures.

[0078] Obtain the sub-areas corresponding to each picture in different states;

[0079] Use the static contact template to traverse the sub-regions of each pict...

Embodiment 2

[0106] On the basis of the above content, this embodiment can build a dynamic contact pressure measurement model, specifically, the following steps:

[0107] Collect at least two complete images of the static contacts of the relay;

[0108] The pictures corresponding to each set of complete images are extracted to form a corresponding picture set.

[0109] Extract some random pictures from any set of pictures;

[0110] Cut random pictures to make corresponding static contact templates;

[0111] Get three pictures of different states in any set of pictures, including the picture of no contact between the moving contact and the static contact, the picture of stable contact between the moving contact and the moving contact, and the picture of only the moving contact and the moving contact Steady exposure to pictures.

[0112] Obtain the sub-areas corresponding to each picture in different states;

[0113] Use the static contact template to traverse the sub-regions of each pic...

Embodiment 3

[0172] Please refer to figure 2 The shown flow diagram of a system based on the image processing-based contact pressure measurement model construction method described in Embodiment 1 and Embodiment 2 provided by the present application includes: an image acquisition module 101 and an image processing module 102 , tracking module 103, computing module 104, storage module 105 and display module 106;

[0173] The image collection module 101 is used to obtain a picture collection of the static contact movement process of the relay, and transmit it to the picture processing module 102;

[0174] The picture processing module 102 is used to obtain the static contact template and three pictures of different states according to the picture set, so as to determine the target area;

[0175] The tracking module 103 is used to track the movement trajectory of the static contact within the target area, determine the target coordinate sequence, and send it to the calculation module 103; ...

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Abstract

The invention discloses a contact pressure measurement model construction method based on image processing. The method comprises the following steps: acquiring a picture set of at least two groups of relay static contact motion processes; obtaining a static contact template in each group of picture set and three pictures with different states in any group of picture set; traversing three pictures in different states by using the static contact template, and determining a target area; tracking the motion trail of the static contact in the target area range, and extracting a target coordinate sequence; calculating a target displacement value by taking the target coordinate sequence as a reference; calculating a pressure calculation value by using the target displacement value; obtaining a manual measured value; and fitting the pressure calculation value and the corresponding manual actual measurement value to obtain a pressure measurement model. The purposes of reducing the dispersity of errors, removing uncontrollable errors and effectively improving the production quality of the relay are achieved.

Description

technical field [0001] The present disclosure generally relates to the technical field of contact pressure measurement, and in particular to a method for constructing a contact pressure measurement model based on image processing. Background technique [0002] Contact pressure is a very important parameter for relay contacts, and it needs multiple measurements in the initial design stage of product production to be properly selected. If the pressure is small, the reliability requirements of the relay cannot be met; if the pressure is high, the requirements for the reaction spring will be increased, and more funds will need to be invested. In order to manufacture a more cost-effective relay, it is very necessary to obtain a more accurate contact pressure. However, the current common measurement method is manual measurement. Because people's perception of tiny forces is not accurate, even the same person can measure different forces at different times, which causes uncontroll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246G06T7/55G06T7/70G06T7/00
CPCG06T7/246G06T7/70G06T7/55G06T7/0004
Inventor 潘如政杜博爱李文华
Owner HEBEI UNIV OF TECH
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