Detection method and device for PCB (Printed Circuit Board)
A PCB board and detection method technology, which is applied in the field of PCB board detection method and its device and device, can solve the problems of low efficiency, parts not installed, not installed, etc.
Pending Publication Date: 2022-03-11
江苏普达迪泰科技有限公司
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Problems solved by technology
[0002] In the production process of PCB boards, due to various reasons, parts may not be installed, or they may not be installed in the correct position, and the installation angle may be incorrect. In the prior art, manual inspection is usually used , which is not only inefficient, but also has a higher probability of error
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Embodiment Construction
[0017] The present invention will be described in further detail below in combination with specific embodiments.
[0018] Embodiment 1 of the present invention provides a detection method for PCB board, such as figure 1 As shown, it includes the following steps:
[0019] Step 101: Control multiple cameras to take pictures of the PCB board to be detected to be processed, and obtain the template information of the PCB board. The template information includes at least: characteristic pictures and preset positions of several components on the PCB board and its preset angle value; here, the multiple cameras can shoot the PCB to be detected from multiple different angles, so that the PCB to be detected can be detected more comprehensively, and each PCB (Printed Circuit Board, printed circuit board) to be detected Board) board, all can be provided with template information, and this template information has included a plurality of components that should be included in this PCB board...
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The invention provides a detection method and device for a PCB, and the method comprises the following steps: controlling a plurality of cameras to shoot to-be-processed pictures of a to-be-detected PCB, and obtaining the template information of the PCB, the template information at least comprising the preset angle information of the pictures, the feature pictures of a plurality of parts on the PCB, the preset positions and the preset angle values; preprocessing the to-be-processed picture; based on the template information, obtaining an ROI region corresponding to each part from the to-be-processed picture, and an actual position and an actual angle value of the part in the ROI region; when the difference value between the preset position and the actual position is greater than a first preset threshold value, or the interpolation value between the preset angle value and the actual angle value is greater than a second preset threshold value, the PCB does not pass the detection; therefore, the PCB can be detected.
Description
technical field [0001] The invention relates to the technical field of PCB boards, in particular to a detection method for PCB boards and a device thereof. Background technique [0002] In the production process of PCB boards, due to various reasons, parts may not be installed, or they may not be installed in the correct position, and the installation angle may be incorrect. In the prior art, manual inspection is usually used , which is not only inefficient, but also has a relatively high probability of error. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a detection method for a PCB board and its device and device. [0004] In order to achieve the above object, the technical solution of the present invention is as follows: a detection method for PCB boards, comprising the following steps: controlling multiple cameras to take pictures of the PCB boards to be detected, and obtaining template info...
Claims
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IPC IPC(8): G06T7/00G06T5/00G06T3/60G06V10/25G06V10/46
CPCG06T7/0004G06T3/60G06T2207/30141G06T5/70
Inventor 范生宏陈坚侍海东
Owner 江苏普达迪泰科技有限公司