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A kind of automatic testing system and method of magnetic card decoding chip

A technology for automated testing and decoding chips, applied in electronic circuit testing and other directions, can solve the problems of unreliable test results, unreproducible test results, and increased development difficulty, and achieve stable and reliable test results, rich test scenarios, and test costs. low effect

Active Publication Date: 2017-04-19
兆讯恒达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual card swiping usually cannot be 100% replicated due to factors such as the gesture speed of swiping cards. Sometimes the test results cannot be reproduced, and the problem cannot be located, which increases the difficulty of development.
Moreover, the output of manual card-swiping test chips is limited per person per day. To ensure shipments, a large amount of manpower, testing equipment and other resources are required, and the cost is high and the efficiency is low.
The analog signals generated by the existing automated testing methods are limited, and the simulated test scenarios are single, so the test results are unreliable and the product quality cannot be guaranteed

Method used

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  • A kind of automatic testing system and method of magnetic card decoding chip
  • A kind of automatic testing system and method of magnetic card decoding chip
  • A kind of automatic testing system and method of magnetic card decoding chip

Examples

Experimental program
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Effect test

Embodiment 1

[0064] Such as figure 2 , 3 As shown, the automatic test system of the magnetic card decoding chip of the present invention includes a PC 1, which is used to send the signal to be tested and receive the test results reported by the decoding chip; the PC1 is provided with an interactive interface, which can be used for human control and monitor. The PC 1 includes a signal pool storing various signals to be tested; one or more signals to be tested are selected and sent to the single-chip microcomputer 2 during each test. These signals to be tested include but are not limited to a variety of card swiping rates and card swiping waveforms, as well as the D / A used in the test, the number of the op amp, the gain of the op amp, etc.

[0065] Single-chip microcomputer 2, it is for example connected described PC machine 1 by a kind of in RS-232, USB and SPI interface type, is used to receive signal to be tested and output digital waveform according to this signal to be tested, and de...

Embodiment 2

[0081] The automatic test system of the magnetic card decoding chip of the present invention includes a PC 1, which is used to send the signal to be tested and receive the test results reported by the decoding chip; the PC 1 is provided with an interactive interface, which can be used for human control and monitoring. The PC 1 includes a signal pool storing various signals to be tested; one or more signals to be tested are selected and sent to the single-chip microcomputer 2 during each test. These signals to be tested include a variety of card swiping rates and card swiping waveforms, as well as the D / A used for testing, the number of operational amplifiers, and the gain of operational amplifiers.

[0082] Single-chip microcomputer 2, it is for example connected described PC by a kind of in RS-232, USB and SPI interface type and is used to receive signal to be measured and output digital waveform according to this signal to be measured, and digital waveform is output to descri...

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Abstract

The invention provides an automatic test system for a magnetic card decoding chip. The automatic test system for the magnetic card decoding chip comprises a PC, a single chip, a D / A converter, an operational amplifier circuit and a chip peripheral circuit. The automatic test system for the magnetic card decoding chip provided by the invention is simple in structure and convenient to operate, and realizes an automatic test; meanwhile, the provided test scenes are more abundant, the test range is larger, and the test result is more stable and reliable. The invention further provides an automatic test method for a magnetic card decoding chip.

Description

technical field [0001] The invention relates to the field of magnetic card testing, in particular to an automatic testing system and method for a magnetic card decoding chip. Background technique [0002] Magnetic cards are currently widely used in bank cards, identification cards and shopping cards. A series of binary data using F2F bi-phase encoding is recorded on the magnetic card. These data include information such as card number and identification, and conform to the ISO7811 standard coding rules. [0003] The principle of biphase encoding is as figure 1 Shown: If the magnetic signal does not change within a data period, the data is 0, otherwise the data changes once and the data is 1. The magnetic medium on the magnetic card represents data 0 and data 1 by whether there is a magnetic polarity change within a unit period. The magnetic card decoding chip can identify the binary bit stream represented by whether the magnetic polarity changes within the magnetic strip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/28
Inventor 刘洋刘守杰吕继华鲍妍尚星宇
Owner 兆讯恒达科技股份有限公司
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