Vehicle automatic paint film detection method and system

A detection method and paint film technology, applied to measuring devices, instruments, etc., can solve the problems of large manpower and working hours, poor reliability of detection data, etc., achieve labor saving, fast and accurate action, and realize automatic paint film detection. Effect

Active Publication Date: 2022-07-26
HENGFENG INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing second-hand car paint film detection mainly relies on manual work. Workers first dot the vehicle, and then use a paint film thickness detector to detect the paint film thickness. The detection process requires a lot of manpower and working hours, and the reliability of the detection data is also poor.

Method used

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  • Vehicle automatic paint film detection method and system
  • Vehicle automatic paint film detection method and system
  • Vehicle automatic paint film detection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Please refer to figure 1 , the first embodiment provided by the present invention is:

[0025] A vehicle automatic paint film detection method, the method is:

[0026] Obtain the vehicle's factory paint film thickness data, including the information corresponding to the vehicle's location and paint film thickness;

[0027] Collect vehicle accident paint film data, vehicle maintenance paint film data, including the vehicle's paint film change point information;

[0028] Collect vehicle artificial paint film detection data, including the manually detected paint film point information of the vehicle;

[0029] Select a detection surface of the vehicle, add the paint film change point information and manual detection paint film point information to the point data set, and calculate the automatic dot position information according to the point data set to the robotic arm;

[0030] Make the robotic arm move to the point that needs to be detected according to the received au...

Embodiment 2

[0033] The second embodiment provided by the present invention is:

[0034] On the basis of the first embodiment, the paint film change point information and the manually detected paint film point information are added to the point data set, and the automatic dot position information is calculated according to the point data set to the robotic arm, specifically:

[0035] S1 adds the paint film change point information and the manually detected paint film point information as samples to the point data set D=x (1) , x (2) ,...,x (m) , set the number of detection points k, and randomly select k samples from the point data set D as the initial cluster center μ (1) , μ (2) , ..., μ (k) , set k cluster groups C 1 , C 2 ....C k , each cluster center corresponds to a cluster grouping;

[0036] S2 calculates the sample point x (j) and each cluster center μ (i) the distance:

[0037] set j = 1, 2, ..., m, i = 1, 2, ..., k;

[0038] Calculate distance

[0039] where x j ,...

Embodiment 3

[0049] The third embodiment provided by the present invention is:

[0050] On the basis of Example 1, the paint film thickness detected by the paint film thickness detector is compared with the vehicle factory paint film thickness data, and the difference value of the paint film thickness is calculated. Specifically, k detection points are set. , i=1,2,...,k,Z i is the difference value of the paint film thickness at the i-th detection point, X i Detect the thickness of the paint film at the i-th detection point, Y i is the factory paint film thickness at the i-th detection point, then Z i =|X i -Y i |.

[0051] After the paint film thickness at the i-th detection point is detected, the paint film thickness difference Z is calculated based on the paint film thickness at the i-th detection point when leaving the factory. i , that is, the difference in the thickness of the paint film to be obtained. According to the difference in the thickness of the paint film at the k det...

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Abstract

The invention provides a vehicle automatic paint film detection method and system, which can obtain vehicle factory paint film thickness data, including information corresponding to location and paint film thickness; collect vehicle accident paint film data and vehicle maintenance paint film data, including paint film change point information ; Collect vehicle artificial paint film detection data, including manual detection paint film point information; select a detection surface of the vehicle, add the paint film change point information and manual detection point information to the point data set, and calculate according to the point data set Send the automatic spotting position information to the robotic arm; make the robotic arm move to the point to be detected according to the received automatic spotting position information, and drive the paint film thickness detector installed at the front end to detect the paint film thickness; The paint film thickness detected by the detector is compared with the vehicle factory paint film thickness data, and the difference value of the paint film thickness is calculated. Realize automatic vehicle paint film detection, reduce manual workload, and improve vehicle paint film detection speed.

Description

technical field [0001] The present invention relates to the technical field of vehicle automatic detection, in particular to a vehicle automatic paint film detection method and system. Background technique [0002] With the improvement of people's quality of life, urban vehicles have grown rapidly. With the growth of vehicles, the second-hand transactions of vehicles have become more frequent. During the use of vehicles, if a large or small accident occurs, the paint film of the vehicle is the part that changes frequently. If the thickness of the paint film of the vehicle exceeds the thickness of the paint film at the factory to a certain extent, the vehicle must have had an accident. If the paint film thickness of the vehicle can be measured more accurately and quickly, and the paint film thickness data can be fed back, consumers can better understand the usage of the vehicle and the estimated price in the process of buying a used car. Existing used car paint film detectio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/08
CPCG01B21/08
Inventor 许世杰熊炳中江朝保
Owner HENGFENG INFORMATION TECH CO LTD
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