Can copying a QR code make it fake? The single barcode traceability system already has obvious loopholes: criminals transfer genuine QR codes to counterfeit materials, which easily leads to production line mixing and misjudgment of authenticity, laying serious quality risks and supply chain compliance hazards for consumer electronics manufacturing enterprises. In view of the common pain points in this industry, Liankang Information's invention patent "A Product Identity Verification Method Combining QR Code and Visual Fingerprint" was officially authorized by the China National Intellectual Property Administration (patent number: ZL202511710326.8).

Noun Explanation

1. QR code: Ordinary one item one code (carrying product basic ID and traceability information)

2. Visual fingerprint (product physical texture fingerprint): Visual fingerprint is not a biological fingerprint, but a microscopic random texture and spot pattern naturally formed on the surface of product film, components, and shells. These physical features are innate and unique to each product, and cannot be replicated manually. The traditional solution relies solely on QR codes to carry product IDs, and once the barcode is copied, the verification system becomes ineffective. This patent scheme establishes a dual verification logic:

Scan the QR code during the production process and capture the surface texture of the product. Encrypt the QR code ID and texture features and store them on the server;

Consumers check their mobile phones and scan the code while taking photos of the surface area of the product;

Cloud double comparison ① to determine whether the QR code is legal and valid; ② Does the texture of the product captured on site match the registered visual fingerprint

✅  Only when both items match can it be judged as genuine;

❌  Simply copying the QR code and replacing it with a fake product, as the texture is inconsistent, is directly judged as counterfeit.

Applicable scenarios

Commercial Value Avoidance of Material Mixing Risks: Avoiding material errors caused by QR code copying and transfer from the bottom layer, reducing batch quality accidents; Improve traceability and compliance capabilities: Establish an immutable product unique digital file to meet the stringent supply chain traceability audit standards of overseas customers; Reduce quality control costs: rely on visual recognition automation to complete verification, reduce manual re inspection investment, and continuously optimize the overall yield of the production line.

Liankang Information continues to increase research and development investment, continuously improve technological innovation capabilities, and continuously enrich the enterprise's intellectual property matrix. Welcome all sectors to carry out technology customization cooperation, jointly build a joint research and development mechanism, work together to create highly reliable and efficient precision electronic testing solutions, and concentrate on industrial innovation and development.