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Soft board detection partition position-alignment correction method

A soft board and partition technology, which is applied in the direction of measuring devices, analyzing materials, and material analysis through optical means, can solve problems such as deformation and deviation that cannot be correctly identified, improve detection efficiency and accuracy, eliminate cumulative errors, and save The effect of production costs

Active Publication Date: 2013-07-24
KUNSHAN THETA MICRO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problem in the prior art that the soft board detection process cannot be correctly identified due to deformation and deviation

Method used

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  • Soft board detection partition position-alignment correction method
  • Soft board detection partition position-alignment correction method
  • Soft board detection partition position-alignment correction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A soft board detection method for zone alignment detection, such as figure 2 , 3 , 4, 5, and 6, including the following steps:

[0042] a) Use linear ccd equipment combined with stepping motor to scan line by line to obtain soft board image;

[0043] b) Through the recognition algorithm, the openings and lines in the image are converted into graphics;

[0044] c) Set the P1 and P2 two-point graphic marks on the two diagonal vertices of the soft board, and perform the two-point initial alignment through the P1 and P2 graphic marks;

[0045] d) Set the upper limit N of the number of partition graphics, and the distance between the height Y1 of the partition Y direction and the step value X'in the X direction;

[0046] e) Starting from the first graphic position in the upper left corner, the Y direction is fixed to Y1, and the X direction is extended to the right, each time X'distance is extended. When X is extended to X1, the number of graphics in the partition reaches or just exc...

Embodiment 2

[0061] A soft board detection method for zone alignment detection includes the following steps:

[0062] a) Use linear ccd equipment combined with stepping motor to scan line by line to obtain soft board image;

[0063] b) Through the recognition algorithm, the openings and lines in the image are converted into graphics;

[0064] c) Set the P1 and P2 two-point graphic marks on the two diagonal vertices of the soft board, and perform the two-point initial alignment through the P1 and P2 graphic marks;

[0065] d) Set the upper limit N of the number of partition graphics, and the distance between the height Y1 of the partition Y direction and the step value X'in the X direction;

[0066] e) Starting from the first graphic position in the upper left corner, the Y direction is fixed to Y1, and the X direction is extended to the right, each time X'distance is extended. When X is extended to X1, the number of graphics in the partition reaches or just exceeds N , Determine the range Z1 of the...

Embodiment 3

[0075] A soft board detection method for zone alignment detection, such as figure 2 , 3 , 4, 5, and 6, including the following steps:

[0076] a) Use linear ccd equipment combined with stepping motor to scan line by line to obtain soft board image;

[0077] b) Through the recognition algorithm, the openings and lines in the image are converted into graphics;

[0078] c) Set the P1 and P2 two-point graphic marks on the two diagonal vertices of the soft board, and perform the two-point initial alignment through the P1 and P2 graphic marks;

[0079] d) Set the upper limit N of the number of partition graphics, and the distance between the height Y1 of the partition Y direction and the step value X'in the X direction;

[0080] e) Starting from the first graphic position in the upper left corner, the Y direction is fixed to Y1, and the X direction is extended to the right, each time X'distance is extended. When X is extended to X1, the number of graphics in the partition reaches or just exc...

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Abstract

The invention relates to a soft board detection partition position-alignment correction method. The soft board detection partition position-alignment correction method solves the problem that based on the prior art, in soft board detection, correct identification is failed because of deformation offset. The soft board detection partition position-alignment correction method comprises the following steps of acquiring a soft board image, transforming openings and lines in the soft board image into figures, arranging P1 and P2 figure markers at two diagonal line vertexes of the soft board, carrying out two-point primary position-alignment by the P1 and P2 figure markers, setting an upper limit value N of the partition figure number, partition Y-direction height Y1 and a X-direction stepping value X' distance, determining a first partition range Z1, selecting two diagonal points P1 and P3 in the range Z1, carrying out two-point positioning, comparing design figures and the recognized figures, and carrying out continuous area scanning until the whole scanning is finished so that partition position-alignment detection of the soft board is finished. The soft board detection partition position-alignment correction method solves the above problem well, and can be used for a SMT template cutting and detection integrated system and especially in a SMT laser template cutting and detection device system.

Description

[0001] Technical field [0002] The invention relates to a soft board detection and self-adaptive partition alignment correction method. Background technique [0003] In the process of using flatbed scanning equipment for soft board inspection, the soft board is placed on the flat glass of the detector, and the image of the soft board is obtained by the linear scan camera combined with the stepping motor. After the feature recognition of the image, the position of the opening and the marking on the soft board is obtained, and the data file is generated and compared with the original design file to judge whether the opening and the marking are accurate. However, due to the unevenness of the soft board itself during the placement process, it cannot fully adhere to the glass surface of the flat plate during the scanning process, such as figure 1 As shown, it is easy to cause partial distortion of the figure. In the process of large-area alignment recognition, two diagonal points are...

Claims

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Application Information

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IPC IPC(8): G01N21/84
Inventor 魏志凌宁军龚关
Owner KUNSHAN THETA MICRO
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