Point-of-sale radioactivity detection using barcode scanner integration
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Solution Overview
Problem
Conventional POS systems lack the capability to check for radioactive contamination of products, which can occur at various stages of the distribution route, including manufacture, transport, wholesales, arrival at store, and display, and thus fail to ensure product safety at the point of sale.
Innovation Solution
A POS system equipped with a storage means for product codes and radioactivity thresholds, a barcode scanner for reading product codes, a radioactivity measurement part for detecting radiation, and an alarm output system to alert when radioactivity exceeds the threshold, allowing for the detection of radioactive contamination without increasing the sales workload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional POS system is used without radioactivity measurement capability, then the device complexity and operational simplicity are maintained, but the ability to detect radioactive contamination of products is lost
Solution Approach 1:
The patent combines the barcode scanner and radioactivity measurement part into a single integrated POS terminal. The barcode scanner reads product identification information while the radioactivity measurement part simultaneously measures the radioactivity of the product, merging two previously separate functions into one unified device that maintains simplicity while enhancing safety capabilities
Solution Approach 2:
The POS terminal is designed with multi-functionality, serving both as a traditional point-of-sale system for processing transactions and as a radioactivity detection system. The terminal can perform barcode scanning, product identification, and radioactivity measurement all within the same device, making it a universal system that addresses both commercial and safety needs
2Reliability
If radioactivity measurement is added to the POS system, then the ability to detect radioactive contamination is improved, but the measurement precision and detection accuracy may be compromised due to integration constraints
Solution Approach 1:
The radioactivity measurement part is positioned at a specific location within the POS terminal that is optimized for detection accuracy. The measurement part is placed to directly face the product scanning area, creating a localized detection zone that ensures precise measurement of product radioactivity while maintaining the overall compact design of the terminal
3Productivity
If the radioactivity measurement part is positioned at the scanning position, then the workflow efficiency is improved, but the measurement capability may be compromised due to spatial constraints
Solution Approach 1:
The radioactivity measurement part is nested within the existing POS terminal structure, utilizing the available space efficiently. The measurement part is integrated into the terminal housing and positioned to work seamlessly with the barcode scanning mechanism, allowing both functions to operate simultaneously without compromising either capability
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
Enables the reliable checking of radioactive contamination at the point of sale, ensuring product safety and reducing the risk of contaminated products being sold, while maintaining minimal workload and operational complexity.
Implementation Method 1
a radioactivity measurement part for measuring radioactivity of the product based on a radiation dose emitted from the product
Data Source
AI summary
POS system checks for radioactive contamination of products without increasing any personnel workload. The POS system includes: a storage means for storing a product code and a radioactivity threshold defined for each product code in association with each other; a barcode scanner; a radioactivity measurement part for measuring radioactivity of a product based on a radiation dose emitted from the product; a comparison means for comparing a radioactivity threshold associated with the product code read by the barcode scanner with a radioactivity measurement value measured by the radioactivity measurement part; and alarm an output means for outputting an alarm when the radioactivity measurement value exceeds the radioactivity threshold. The radioactivity measurement part is arranged at such a position that, when the product exists at a scanning position (A) where the product code is read with the barcode scanner, the radioactivity measurement part detects the radioactivity of the product.