POS Machine Testing With Time-Varying Magnetic Field Simulation
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Solution Overview
Problem
Conventional methods for testing POS machines are inefficient due to high operational complexity, requiring physical card swiping and replacement operations.
Innovation Solution
A method using a test terminal that generates a magnetic field varying over time based on sample magnetic track data to simulate card swiping, eliminating the need for physical cards and reducing operational complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical card swiping operations are used for testing, then the POS machine can be tested for actual card reading functionality, but the operational complexity increases and testing efficiency decreases
Solution Approach 1:
The patent uses a magnetic field generator to create a virtual magnetic stripe card that copies the magnetic field characteristics of a real card. Instead of physically swiping a card, the system generates equivalent magnetic field signals electronically, thereby maintaining test accuracy while eliminating the complexity of physical card handling and replacement operations
Solution Approach 2:
The patent replaces the mechanical card swiping operation with an electronic magnetic field generation system. The magnetic field generator produces magnetic field variations that simulate card swiping without requiring physical contact or mechanical movement, thus reducing operational complexity while preserving the essential testing function
2Measurement precision
If physical magnetic stripe cards are used for testing, then accurate card data can be obtained, but the preparation and replacement of physical cards increases operational complexity and reduces testing efficiency
Solution Approach 1:
The system creates virtual copies of magnetic stripe card data in digital form and reproduces the magnetic field patterns electronically. This allows multiple card types to be tested by simply changing digital parameters rather than physically replacing cards, thereby maintaining measurement precision while dramatically improving testing efficiency
Solution Approach 2:
The patent pre-generates magnetic field patterns and test data in digital form before the actual testing process. By preparing test cases as electronic configurations rather than physical cards, the system eliminates the time-consuming steps of card preparation, insertion, and replacement during testing, thus improving productivity without compromising data accuracy
3Reliability
If conventional card swiping testing methods are used, then the POS machine can be tested, but mechanical operations increase the risk of malfunctions and reduce testing reliability
Solution Approach 1:
The patent eliminates mechanical card swiping operations by using an electronic magnetic field generator to produce the necessary magnetic signals. This substitution removes sources of mechanical failure such as card readers jamming, cards bending or breaking, and physical wear, thereby improving testing reliability while reducing the risk of mechanical malfunctions
Solution Approach 2:
The magnetic field generator system is self-contained and electronically controlled, requiring no external physical media or manual card insertion. The system automatically generates and controls the magnetic field signals, eliminating human error and mechanical issues associated with manual card handling, thus enhancing testing reliability
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 method improves testing efficiency by avoiding physical card operations, reducing mechanical malfunctions, and lowering testing costs while ensuring accurate simulation of card swiping and password input.
Implementation Method 1
The POS machine reads magnetic track data in the magnetic stripe card according to the electromagnetic induction force
Data Source
AI summary
A method for testing a POS machine is applied to the test terminal and includes: obtaining sample data of a magnetic track; outputting a first test level according to the sample data of the magnetic track and generating a magnetic field that varies over time according to the first test level; and obtaining a first operation result generated by a POS machine under test and obtaining a test result of whether the POS machine under test can perform a card swiping operation normally according to the first operation result. The first operation result is an operation result which is generated by the POS machine under test according to an electromagnetic induction effect generated according to the magnetic field that varies over time. By performing the method, operational complexity of testing of the POS machine can be reduced, and the efficiency of testing of the POS machine can be improved.