Food safety tracing method and food safety tracing system based on two-dimensional code

Abstract

Embodiments of the invention provide a food safety tracing method and a food safety tracing system based on a two-dimensional code. The method mainly comprises the following steps: generating a two-dimensional code of a set format, and attaching the two-dimensional code to packaged food; recording the circulation information of the packaged food at each circulation node, combining the circulation information and the product information of the packaged food into the traceability information of the packaged food, and storing the traceability information and the information of the two-dimensional code in an associative manner; and scanning the two-dimensional code on the packaged food to get the information of the two-dimensional code, and querying the traceability information of the packaged food according to the scanned information of the two-dimensional code. According to the embodiments of the invention, the content of the private area in the two-dimensional code is hidden, so the public are unaware of the existence of the authentication code in the private area, the safety of the two-dimensional code is enhanced on the premise of not affecting the user experience, and the safety of the product attached with the two-dimensional code is improved. Identification of packaged food based on 'one object one code' is realized, and the anti-counterfeiting ability of products is enhanced. The circulation of each product at each circulation node is recorded, so faulty products can be located easily and recalled quickly when there is a food quality problem.

Description

technical field [0001] The invention relates to the field of food safety traceability, in particular to a food safety traceability method and system based on a two-dimensional code. Background technique [0002] Food safety is an important source of protection of public health and life safety. In recent years, frequent food safety accidents have attracted widespread attention from all walks of life. As a means of ensuring food safety, food safety traceability has been widely used at home and abroad. [0003] Two-dimensional codes have the characteristics of large capacity, low cost, and strong error correction capabilities. It is not uncommon to use two-dimensional codes to mark packaged foods and achieve food safety traceability. However, most of the traceability systems currently on the market are established by the enterprises themselves, and the construction cost is high, and the traceability information lacks objectivity and authority, and it is not conducive to the co...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the traceability method based on the two-dimensional code in the above-mentioned prior art is: since each distribution needs to authorize the encrypted verification code and generate a new two-dimensional code, this puts forward higher requirements for the distributor, and also makes the work of distribution difficult. It becomes cumbersome; moreover, since the distribution information of each distribution needs to be coded into the QR code, when there are many distribution links, the information in the QR code will become a lot, and the size of the QR code will also become very large It is not easy to attach to the product, even if there is enough space to print the two-dimensional code, the two-dimensional code is easy to reduce the reading rate due to deformation and wear; finally, the same production or distribution batch in this implementation method uses the same QR codes do not realize "one item, one code", which reduces the anti-counterfeiting ability of QR codes, and it is not easy to track the location of each product, which is not conducive to product recall

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