Authentication System Using Concentration Distribution Changes
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Solution Overview
Problem
Existing disinfection visualization techniques using information codes are vulnerable to fraudulent use as the codes can be easily copied, leading to errors in recording disinfection application situations, especially when dealing with multiple disinfection targets.
Innovation Solution
An authentication system utilizing an information encoding article with a detection unit that reads a concentration distribution change in an encoding region upon application of an external stimulus, comparing pre- and post-stimulus information to authenticate the disinfection process, thereby reducing fraudulent use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an information code is used to visualize disinfection operation, then measurement precision is improved, but reliability deteriorates due to fraudulent use
Solution Approach 1:
The patent changes the parameter from a static information code to a dynamic concentration distribution pattern that evolves over time. The encoding region's concentration distribution is captured at multiple time points (before and after disinfectant application), creating a temporal parameter change that is difficult to replicate fraudulently.
Solution Approach 2:
The patent addresses the copying vulnerability by making the concentration distribution pattern unique and time-dependent. Instead of a static code that can be copied, the dynamic concentration changes create a fingerprint that is hard to replicate, as each disinfection event produces a unique temporal pattern.
2Device complexity
If manual recording is used for disinfection operation, then device complexity is reduced, but measurement precision deteriorates due to human error
Solution Approach 1:
The encoding article performs self-verification by automatically providing concentration distribution data that proves disinfectant application. The article itself carries the verification information through its concentration changes, eliminating the need for complex external recording systems while improving accuracy.
Solution Approach 2:
The patent utilizes concentration distribution changes (analogous to color changes) as a visual and measurable indicator of disinfectant application. The encoding region's concentration distribution serves as a self-indicating mechanism that provides precise recording without requiring complex manual or electronic systems.
3Reliability
If concentration distribution change is detected, then reliability is improved, but device complexity increases
Solution Approach 1:
The encoding region serves multiple functions: it stores information, provides concentration distribution data for authentication, and acts as a visual indicator. This multi-functionality reduces the need for separate complex detection systems, as the same encoding structure provides both information storage and verification capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces fraudulent activities by ensuring accurate recording of disinfection processes through authentication based on concentration distribution changes, enhancing the reliability of disinfection operation documentation.
Implementation Method 1
the concentration distribution in the encoding region, to be read by the detection unit, changes upon application of the external stimulus to the encoding region
Data Source
AI summary
An authentication system using an information encoding article that includes an information code, the authentication system includes a detection unit capable of reading the information code, an information acquisition unit configured to acquire first information regarding a concentration distribution in an encoding region before and after the application of an external stimulus, and an authentication unit configured to execute authentication by using at least both second information acquired prior to the first information and regarding the concentration distribution in the encoding region and the first information, wherein the information encoding article having the encoding region where the information code is formed, the concentration distribution in the encoding region, to be read by the detection unit, changing upon application of the external stimulus to the encoding region.