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A system and method for pcb board positioning recognition based on image processing
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A PCB board, positioning and identification technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problem of increasing costs
Active Publication Date: 2020-10-23
江西鸿宇电路科技有限公司
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The system also requires a set of mechanical positioning structures, and different positioning mechanisms need to be designed for different sizes of PCBs; in addition, due to the introduction of mechanical structures, the cost is increased
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Embodiment 1
[0052] figure 1 It is a structural diagram of a PCB board positioning recognition system based on image processing in this embodiment, as figure 1 As shown, in this embodiment, a PCB board positioning recognition system based on image processing includes: a visual sensor 10, a photoelectric sensor 20 and a control module 30;
[0053] Described visual sensor 10 is used for taking the picture that has PCB board;
[0054]In this embodiment, the visual sensor 10 is directly fixed on the production line for taking pictures.
[0055] The photoelectric sensor 20 is used for sensing the PCB board, and sends a trigger signal to the control module 30;
[0056] In this embodiment, the photoelectric sensor 20 is fixed below the production line. When the PCB passes the position of the photoelectric sensor 20, the photoelectric sensor 20 is triggered, and the photoelectric sensor 20 sends a trigger signal to the control module 30 to control the visual sensor 10 to take pictures.
[0057]...
Embodiment 2
[0088] image 3 It is a flow chart of a PCB board location recognition method based on image processing in this embodiment, as image 3 As shown, a kind of PCB board position recognition method based on image processing in the present embodiment comprises steps:
[0089] S1. After the photoelectric sensor 20 senses the PCB board, the visual sensor 10 takes pictures with the PCB board;
[0090] S2. The control module 30 judges whether the PCB board is qualified according to the number of position identification points of the PCB board in the picture, and sends the judgment result to the server.
[0091] In this embodiment, before step S1, it also includes:
[0092] Perform position calibration on the visual sensor 10 .
[0093] Step S1 is specifically:
[0094] S11. After the photoelectric sensor 20 senses the PCB board, send a trigger signal to the control module 30;
[0095] S12. The control module 30 receives the trigger signal sent by the photoelectric sensor 20, and c...
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Abstract
The invention discloses a PCB (Printed Circuit Board) positioning and recognition system and a PCB positioning and recognition method based on image processing. The system comprises a vision sensor, aphotoelectric sensor and a control module, wherein the vision sensor is used for shooting a picture with a PCB; the photoelectric sensor is used for sensing the PCB and sending a trigger signal to the control module; and the control module is used for receiving the trigger signal sent by the photoelectric sensor, controlling the vision sensor to shoot the picture, recognizing the number of pointsaccording to the position of the PCB in the picture to judge whether the PCB is qualified or not, and sending the judgment result to a server. Compared with the prior art, the embodiments of the invention reduce the system cost, are suitable for recognition and positioning of multiple types of PCBs, and improve the production efficiency.
Description
technical field [0001] The invention relates to the technical field of PCB detection, in particular to a PCB board positioning recognition system and method based on image processing. Background technique [0002] With the rapid development of the electronic information industry, PCBs are widely used in various fields, and the quality of PCB boards is related to whether each product is qualified. All walks of life have put forward stricter requirements on the quality of PCBs. In order to produce qualified electrical products, PCBs must be strictly tested before production. At present, in order to improve production efficiency, PCB manufacturers make multiple identical small boards from one large board, but sometimes some small boards are unqualified during the production process. In order to save costs, it is necessary to identify unqualified small boards (each small board There are a fixed number of mark points, and the number of mark points on unqualified boards at the fa...
Claims
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