Scale Calibration History Checking System
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Solution Overview
Problem
Existing methods fail to effectively detect and prevent unauthorized manipulation of electronic scales, leading to unfair business transactions, despite efforts to replace mechanical scales with electronic ones and implement periodic inspections and secret codes for authorized access.
Innovation Solution
A system comprising a scale with a weight measuring unit, memory for storing reference data, and a communication unit, a management server for storing identification and calibration data, and a mobile terminal for checking the calibration history, which compares reference data from the scale to the most recently calibrated data to detect unauthorized manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic inspection and secret codes are used for authorized access, then scale manipulation is prevented to some extent, but unauthorized manipulation detection capability is insufficient
Solution Approach 1:
The system implements feedback by continuously monitoring scale operation data, comparing it against authorized parameters, and providing real-time alerts when unauthorized manipulation is detected. The server receives data from the scale and provides feedback to both the scale operator and authorities, creating a closed-loop detection system that enhances reliability without compromising detection capability.
Solution Approach 2:
A server acts as an intermediary between the scale and authorized users or monitoring authorities. This intermediary receives encrypted operation data from the scale, processes it, and provides calibration history and manipulation detection results, enabling remote monitoring and detection capabilities that neither the scale alone nor periodic inspections could achieve.
2Reliability
If electronic scales replace mechanical scales, then manipulation resistance is improved, but vulnerability to electronic manipulation increases
Solution Approach 1:
The system applies preliminary anti-action by pre-configuring the scale with encrypted authorized parameter sets and implementing authentication mechanisms before operations. The server pre-establishes calibration credentials and monitors for unauthorized changes, preventing electronic manipulation before it can occur rather than detecting it after the fact.
Solution Approach 2:
The system changes parameters by encrypting scale operation data and calibration information, transforming readable parameters into protected formats. The server decrypts and verifies these parameters, creating a parameter transformation system that protects against electronic manipulation while maintaining operational functionality.
3Device complexity
If calibration history is not monitored, then system complexity is reduced, but ability to detect unauthorized manipulation is insufficient
Solution Approach 1:
The scale performs self-service by automatically recording its own calibration history and operation data, storing it in encrypted format. The system self-monitors for unauthorized manipulations and automatically reports anomalies to the server, eliminating the need for complex manual monitoring systems while maintaining detection capabilities.
Data Source
AI summary
The present invention relates to a terminal for checking a calibration history of a scale, a system for managing a calibration history of a scale and a method of checking a calibration history of a scale, and more particularly, a terminal for managing history of calibrating or revising the reference data being a standard when calculating a weight, the system thereof and the method thereof. According to the present invention, it is expected to prevent business transactions of a scale user because a general user as well as a qualified person can determine whether a scale is manipulated without authority. In addition, according to the system of the present invention, it is possible to greatly lower the calibration cost of a scale.