Auxiliary calibration method, device, electronic equipment and storage medium for machine vision
A technology of machine vision and calibration method, applied in welding equipment, laser welding equipment, metal processing equipment, etc., can solve the problem of unclear image feature points, and achieve the effect of reducing human labor and improving production efficiency.
Active Publication Date: 2021-12-28
WUHAN YIFI LASER EQUIP CO LTD
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[0004] In view of this, the object of the present invention is to provide a machine vision auxiliary calibration method, device, electronic equipment and storage medium, which avoids the problem of requiring manual intervention in the welding of electric cores due to unknown image feature points, and improves the Productivity
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[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0054] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.
[0055] It should be noted that in this article, relation...
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Embodiments of the present invention provide a machine vision auxiliary calibration method, device, electronic equipment, and storage medium, which relate to the field of automatic manufacturing. The method includes obtaining an image containing the feature points of the battery pole; determining the visual information quality score of the image, and the visual information quality score is used to characterize the recognition accuracy of the battery pole feature point; when the visual information quality score is less than or equal to When the quality score threshold is reached, the auxiliary calibration interface is output; the auxiliary calibration point input by the user is obtained; the calibration offset is obtained according to the auxiliary calibration point and the characteristic point of the battery pole; when the calibration offset meets the offset range, the welding control device is sent Sending an offset welding instruction, where the offset welding instruction is used to instruct to weld the characteristic point of the pole of the battery cell according to the calibrated offset. It can greatly avoid the problem of manual intervention for repair welding caused by the unrecognizable feature points in the picture during the welding process, which reduces manpower and improves production efficiency.
Description
technical field [0001] The invention relates to the field of automatic manufacturing, in particular to a machine vision auxiliary calibration method, device, electronic equipment and storage medium. Background technique [0002] At present, for the welding of battery core modules, due to the high accuracy of the laser welding position (about 0.1mm), it is often necessary to control the welding position more accurately. Otherwise, once the welding position deviates from the battery pole, the entire battery module will be scrapped. [0003] In the prior art, the control of the welding position is realized by taking pictures of the welding objects, and then identifying the welding position in the image. However, in the existing identification methods, for the welding position of the battery pole, the feature points in the image are often stained, missing, and not obvious, which leads to the need for manual intervention to identify the feature points after the machine welding p...
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IPC IPC(8): B23K26/03B23K26/70B25J9/16
CPCB23K26/03B23K26/032B23K26/70B25J9/1697B25J9/1653B25J9/161B23K2101/36
Inventor 吴轩冉昌林李洪武刘继顺
Owner WUHAN YIFI LASER EQUIP CO LTD