Date printing accuracy detection method and system based on two-dimensional code

Abstract

The invention discloses a date printing accuracy detection method based on a two-dimensional code. The date printing accuracy detection method comprises the following steps: acquiring a printed imageon a to-be-detected product; wherein the printed image comprises a two-dimensional code image and a product date; identifying to obtain product date information in the two-dimensional code image; acquiring system date information; comparing the product date information with the system date information; when the difference value between the product date information and the system date information is within a preset time interval, judging that the product date information is printed accurately; otherwise, judging that the date information of the product is printed wrongly. The invention also correspondingly discloses a date printing accuracy detection system based on the two-dimensional code. According to the method and the system disclosed by the invention, the production date is identifiedand detected through the two-dimensional code, so that the cost is greatly reduced, and the detection efficiency and accuracy of the production date are improved.

Description

technical field [0001] The invention belongs to the technical field of production management, and in particular relates to a date printing accuracy detection method and system based on a two-dimensional code. Background technique [0002] In the production process of existing products, according to the national quality requirements, the production date needs to be printed on the outer packaging of the product to ensure that the production quality can be monitored and traced. In the prior art, a laser printer is generally used to obtain the system date at that time, and The system date is printed on the outer packaging of the product as the production date. Since the product needs to be traceable, a QR code containing product information will be printed at the same time. When the coding equipment (laser machine) appears When there is a failure, the printed date will be unclear or there will be no printed date. Equipment failure or human error may also cause the printed date t...

AI Technical Summary

Problems solved by technology

[0002] In the production process of existing products, according to the national quality requirements, the production date needs to be printed on the outer packaging of the product to ensure that the production quality can be monitored and traced. In the prior art, a laser printer is generally used to obtain the system date at that time, and The system date is printed on the outer packaging of the product as the production date. Since the product needs to be traceable, a QR code containing product information will be printed at the same time. When the coding equipment (laser machine) appears When there is a failure, the printed date will be unclear or there will be no printed date. Equipment failure or human error may also cause the printed date to be inconsistent with the actual date. The products that come out in this way are all substandard products and need to be reworked.

[0003] In order to prevent the production date printing error of mass products from affecting the production schedule and wasting resources, the production date printed on the product outer packaging needs to be detected in time to determine whether the printing is correct. The existing technology generally uses image recognition equipment to check the production date. Direct reading, and after image processing and filtering to obtain production date data for verification, but these image recognition devices are expensive and costly, and the corresponding built-in algorithms need to be adjusted and set, which is time-consuming and labor-intensive

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