Dual-Marked Labels for Traceability After Code Cutout
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Solution Overview
Problem
Existing product management systems impose a significant burden on manufacturers and distributors by requiring them to introduce digital watermarking systems to ensure traceability, and dishonest acts like cutting out product codes while retaining brand information can still bypass digital watermarking solutions.
Innovation Solution
A label management system that includes a code printing device, information reading device, and database, where labels are printed with both a digital watermark for label identification and a product code, allowing these to be read and stored together, enabling traceability even if the product code is cut out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital watermarking is implemented to ensure product traceability, then product traceability is improved, but the burden on manufacturers and distributors increases significantly
Solution Approach 1:
The patent introduces a label management system as an intermediary between the product labeling process and traceability verification. This system includes a database that stores the relationship between label information (digital watermark) and product information (code), allowing traceability to be verified without requiring manufacturers to implement complex digital watermarking systems directly on their production lines. The label management system acts as a mediator that handles the complexity of digital watermark verification centrally.
2Reliability
If code is printed on label for product tracing, then product traceability is enabled, but dishonest acts like cutting out the code can bypass tracing
Solution Approach 1:
The patent segments the traceability information into two separate components: label information (printed as digital watermark) and product information (printed as code). These segments are stored in separate regions on the label but are associated in the label management system's database. This segmentation ensures that if one segment (the code) is cut out or damaged, the other segment (the digital watermark) remains intact and can still be used to verify product traceability through the database association.
Solution Approach 2:
The patent implements preliminary action by pre-storing the association between label information and product information in the label management system's database before any traceability verification occurs. This pre-established relationship allows the system to verify product authenticity by matching the digital watermark on the label with the corresponding product information in the database, even if the code on the label is later removed or tampered with. The preliminary storage of this association creates a backup verification mechanism that is resilient to code removal attacks.
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 3A~3B
AI summary
A label management system is a system that allows product management using a label, and comprises a code printing device, an information reading device, and a database. The label includes a print surface printed with a digital watermark that shows label information. The label information is information for individual identification of the label itself. The code printing device prints a code of product information on the print surface of the label. The product information is information for individual identification of a product to which the label is to be attached. The information reading device reads the label information and the product information from the digital watermark and the code respectively printed on the print surface of the label, for the label as a unit. The label information and the product information that are read by the information reading device are stored into the database in association with each other for the label as a unit.