Identification Card Test Method
辨識與安全科技中心
張博光經理
©2008 GS1 Taiwan
Content
ISO 10373 IntroductionTest equipment set upProximity Card test method
PICC (Proximity Card, Card) PCD (Proximity Coupling Device, Reader)
Functional Test Conclusion
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ISO 10373 Introduction
Part 6 : Proximity cards ISO 14443 Protocol (< 10cm)High security Card
Part 7 : Vicinity cards ISO 15693 Protocol (up to 1 meter)Library
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Identification Cards Test Apparatus
Test PCD AssemblyCalibration coil
Reference PICCSignal Generator (PCD)Digital Sampling Oscillocope
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Test equipment and test circuits(1)
Calibration coilAt 13.56MHz the approximate inductance is 200nH and the approximate resistance is 0.25ohmThickness : 0.76mm+- 10%Corner radius : 5mmThe area over which the field is integrated is approximately 3000mm2The size of connections pads shall be 1.5mmx1.5mm
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Test equipment and test circuits(2)
Test PCD (Proximity Coupling Device) assembly
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Test equipment and test circuits(3)
Test PCD Antenna tuning step 1
Match the impedance of the signal from signal generator to 50 Ohm
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Test equipment and test circuits(4)Test PCD Antenna tuning step 2
Tune the phase to 0 to match the impedance of the antenna to signal generator (50 Ohm)
Before tuning
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Test equipment and test circuits(5)Reference PICCs
L C1 C3
R1 R2
R3C4
C2
C1: Stray capacitance < 5 pF Jumper settings:J1 a: min. fieldstrength b: max. fieldstrength
J1
a b
D1 D2
D3 D4VDC
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Functional Test
Function test – PICCAlternating magnetic field testAmplitude of the PICC load modulation signal
Function test – PCDPCD field strengthModulation index and waveform
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Function test - PICCCatch the response of PICC
Connect to Osilloscope and monitor the field strength of PCD
PICC under test
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Alternating magnetic field test - PICC
Alternating magnetic field test10A/m rms (5 mins) Remove the PICC at least 5 sec5 minutes an ASK 100% modulation to this field with the following duty cycle
5 sec at 0 A/m rms25 sec at 12 A.\/m rms
Check the PICC operates as intended
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Function test - PICCCatch the response of PICC
•We get 4 subcarrier cycles for DFT process
• Get the Amplitude of the PICC load modulation signal
PCD PICC
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Function test - PCDPCD field strength
Hmax (7.5A/m) : Maximum fieldstrength of the PCD antenna fieldHmin (1.5A/m) :Minimum fieldstrength of the PCD antenna field
Reader
Reference PICC
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Function test - PCD
Modulation index and waveform
Reader
Calibration coil
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Function test - PCDModulation index and waveform
t1
t4
t3t3
t2
60%90%
100%
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Conclusion
Function test – PICCAlternating magnetic field testAmplitude of the PICC load modulation signal
Determine the amplitude of PICC load modulation signal can be detected by PCD
Function test – PCDPCD field strength
Determine the PCD is able to supply a certain power to PICCModulation index and waveform
Determine the index modulation of the PCD field as well as the rise and fall times and the overshoot values as defined in ISO/IEC 14443-2