CN100514350C - Detecting method used for the second generation resident identification card and equipment thereof - Google Patents
Detecting method used for the second generation resident identification card and equipment thereof Download PDFInfo
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- CN100514350C CN100514350C CNB2006100897794A CN200610089779A CN100514350C CN 100514350 C CN100514350 C CN 100514350C CN B2006100897794 A CNB2006100897794 A CN B2006100897794A CN 200610089779 A CN200610089779 A CN 200610089779A CN 100514350 C CN100514350 C CN 100514350C
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Abstract
A detection method and device for second generation ID card are provided, which relates to non-touch IC card technology in microelectronic field. The device in the invention, which comprises a main control circuit unit, a radiofrequency carrier frequency control unit, a radiofrequency fiend density and carrier modulation depth control unit and a radiofrequency power amplification unit, is characterized in that: the input end of the main control circuit unit is connected to the output end of computer; the main control circuit unit is respectively connected to the radiofrequency power amplification unit via the radiofrequency carrier frequency control unit and the radiofrequency field density and carrier modulation depth control unit. The output end of the radiofrequency power amplification is connected to an antenna. Therefore, the invention, which is able to realize the detection of the electric performance of non-touch IC card for the second generation ID card, has the advantages of convenient application and precise detection.
Description
Technical field
The present invention relates to the non-contact IC card technique of microelectronic, especially for the detection method and the device thereof that detect second generation resident identification card non-contact IC card.
Background technology
What second generation resident identification card adopted is non-contact IC card, designs based on the contiguous formula non-contact IC card of ISO/IEC 14443Type-B standard.Defined the physical characteristics and the electrical characteristics of non-contact IC card in ISO/IEC 14443 standards, electrical characteristics wherein comprise indexs such as field intensity, carrier frequency, depth of modulation.These index request non-contact IC cards should be able to be in the magnetic field intensity of 1.5A/m-7.5A/m, and below the carrier frequency of 13.553-13.567MHz, and depth of modulation is an operate as normal under the condition of 8-14%.Only meet the requirement of above-mentioned standard, could guarantee that non-contact IC card mates with relevant read-write machine.
Along with comprehensive startup of second generation resident identification card project, a large amount of second generation resident identification cards is faced with one and detects the problem of demarcating.Only environment, physical characteristics etc. is tested and existing inspection machine is basic, and to the electrical characteristics of contactless I card, except that carrying out normal experiments such as static, alternating electromagnetic field, can't test the field intensity that requires in the standard, carrier frequency, depth of modulation etc.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the purpose of this invention is to provide a kind of easy to use, detect detection method and the equipment thereof be used for second generation resident identification card accurately.This checkout equipment can be realized by the adjustment to magnetic field intensity, carrier frequency, depth of modulation size the electrical property of second generation resident identification card non-contact IC card is detected.
In order to realize above-mentioned goal of the invention, technical scheme of the present invention realizes as follows:
A kind of detection method that is used for second generation resident identification card, it comprise use a computer, main control circuit unit, radio frequency carrier frequency control module, radio field intensity and carrier modulation degree of depth control module, radiofrequency power amplification unit and antenna, its key step is:
1. the steering order sent of main control circuit unit receiving computer, and the output frequency control signal is given radio frequency carrier frequency control module and voltage control signal and is treated that the adjusting data signal gives radio field intensity and carrier modulation degree of depth control module respectively.
2. the radio frequency carrier frequency control module is exported the variation of different frequencies to radiofrequency power amplification unit control output frequency parameter, and the voltage that radio field intensity is different with the output of carrier modulation degree of depth control module is controlled the variation of output magnetic field intensity parameter and the adjustment of carrying out depth of modulation to radiofrequency power amplification unit.
3. according to the variation of frequency parameter, magnetic field intensity parameter and depth of modulation of output, be implemented under the different electrical parameters detection to second generation resident identification card IC-card sheet.
In above-mentioned detection method, the variation of described frequency parameter is to select the frequency of three crystal oscillators of 13.56MHz, 13.553MHz and 13.567MHz to export to radiofrequency power amplification unit respectively by the three elections switch that is provided with in the radio frequency carrier frequency control module.
In above-mentioned detection method, the variation of described magnetic field intensity parameter is to obtain the different output voltage of two-way with carrier modulation degree of depth control module for radio field intensity by main control circuit unit output two-way voltage control signal, and selects arbitrary voltage to export to radiofrequency power amplification unit by the adjusting data signal controlling either-or switch for the treatment of of main control circuit unit output.
In above-mentioned detection method, described adjustment to depth of modulation is under the situation that arbitrary road voltage is constant in the different output voltage of two-way, controls the variation that another road voltage is exported by voltage control signal, makes the output amplitude difference of radiofrequency power amplification unit.
Realize the equipment of above-mentioned detection method, it comprises main control circuit unit, radio frequency carrier frequency control module, radio field intensity and carrier modulation degree of depth control module and radiofrequency power amplification unit.Its design feature is that the input end of described main control circuit unit is connected with the output of computing machine.Main control circuit unit is connected to radiofrequency power amplification unit by radio frequency carrier frequency control module and radio field intensity and carrier modulation degree of depth control module respectively.The output of radiofrequency power amplification unit connects antenna.
In above-mentioned checkout equipment, described radio frequency carrier frequency control module is built-in with multiselect one switch.The input end of multiselect one switch connects the crystal oscillator of different frequency respectively, and the output terminal of multiselect one switch is as the frequency source of radiofrequency power amplification unit.
In above-mentioned checkout equipment, described multiselect one switch is a three elections switch, and the frequency of three crystal oscillators is respectively 13.56MHz, 13.553MHz and 13.567MHz.
In above-mentioned checkout equipment, described radio field intensity and carrier modulation degree of depth control module are built-in with variable voltage source one, variable voltage source two and either-or switch.The data input pin of either-or switch connects variable voltage source one and variable voltage source two respectively.The control input end of either-or switch connects main control circuit unit, and the output terminal of either-or switch is as the power supply of radiofrequency power amplification unit.
In above-mentioned checkout equipment, described main control circuit unit adopts the RS232 interface to be connected with the output of computing machine, and the chip model that main control circuit unit is used is AT89C52 and MAX3232.
In above-mentioned checkout equipment, all use model to be the chip of LM317 and model digital regulation resistance in variable voltage source one in described radio field intensity and the carrier modulation degree of depth control module and the variable voltage source two as MCP41010.
In above-mentioned checkout equipment, the model of the power amplification triode that uses in the described radiofrequency power amplification unit is FDV301.
The present invention is owing to adopted above-mentioned method and structure, under the control of computing machine, export different frequencies, voltage to radiofrequency power amplification unit, realize the adjustment of outgoing carrier frequency, magnetic field intensity and depth of modulation, thereby finish detection to second generation resident identification card non-contact IC card electrical property, have easy to use, detect accurate characteristics.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the frame principle figure of present device;
Fig. 2 is the structural representation of main control circuit unit among the embodiment;
Fig. 3 is the structural representation of radio frequency carrier frequency control module among the embodiment;
Fig. 4 is the structural representation of radio field intensity and carrier modulation degree of depth control module among the embodiment;
Fig. 5 is the circuit connection diagram of main control circuit unit among the embodiment;
Fig. 6 is the circuit connection diagram of radio field intensity and carrier modulation degree of depth control module among the embodiment;
Fig. 7 is the circuit connection diagram of radiofrequency power amplification unit among the embodiment.
Embodiment
Referring to Fig. 1 to Fig. 4, present device comprises main control circuit unit 1, radio frequency carrier frequency control module 2, radio field intensity and carrier modulation degree of depth control module 3 and radiofrequency power amplification unit 4.The input end of main control circuit unit 1 adopts the RS232 interface to be connected with the output of computing machine 5.Main control circuit unit 1 is connected with radiofrequency power amplification unit 4 with carrier modulation degree of depth control module 3 by radio frequency carrier frequency control module 2, radio field intensity respectively.Radio frequency carrier frequency control module 2 is built-in with three elections switch 7, and the input of three elections switch 7 connects the crystal oscillator that frequency is 13.56MHz, 13.553MHz and 13.567MHz respectively, and its output is as the frequency source of radiofrequency power amplification unit 4.Radio field intensity and carrier modulation degree of depth control module 3 are built-in with variable voltage source 1, variable voltage source 29 and either-or switch 10.The data input pin of either-or switch 10 connects variable voltage source 1 and variable voltage source 29 respectively, and the control input end of either-or switch 10 connects main control circuit unit 1.The output terminal of either-or switch 10 is as the power supply of radiofrequency power amplification unit 4.The output of radiofrequency power amplification unit 4 connects antenna 6.
Referring to Fig. 5 to Fig. 7, the chip model that main control circuit unit 1 is used is AT89C52 and MAX3232, all use model to be the chip of LM317 and the model digital regulation resistance as MCP41010 in variable voltage source 1 in radio field intensity and the carrier modulation degree of depth control module 3 and the variable voltage source 29, the model of the power amplification triode that uses in the radiofrequency power amplification unit 4 is FDV301.
Step when present device is used is:
1. the steering order sent by RS232 interface receiving computer 5 of main control circuit unit 1, the output frequency control signal is given radio frequency carrier frequency control module 2 and voltage control signal and is treated that the adjusting data signal gives radio field intensity and carrier modulation degree of depth control module 3 respectively then.
2. select the frequency of three crystal oscillators of 13.56MHz, 13.557MHz and 13.567MHz to export to radiofrequency power amplification unit 4 respectively by the three elections switch 7 that is provided with in the radio frequency carrier frequency control module 2, the variation of control radiofrequency power amplification unit 4 output frequency parameters.
3. one road voltage control signal one of main control circuit unit 1 output is controlled the variable voltage source 1 in radio field intensity and the carrier modulation degree of depth control module 3, the output voltage that makes variable voltage source 1 is A, another road voltage control signal two control variable voltage sources 29 of main control circuit unit 1 output, the output voltage that makes variable voltage source 29 is B.The control signal of adjusting data signal as either-or switch 10 treated in main control circuit unit 1 output, makes and treats that the adjusting data signal is at 1 o'clock, and output voltage A treats that the adjusting data signal is at 0 o'clock, output voltage B.Output voltage is as the power supply of radiofrequency power amplification unit 4, and the variation of radiofrequency power amplification unit 4 supply voltages changes its output field intensity, has promptly realized the adjustment to magnetic field intensity.
4. under the constant situation of variable voltage source 1, change the output voltage B of variable voltage sources 29 by voltage control signal two.Make the output amplitude difference of radiofrequency power amplification unit 4, promptly realized adjustment depth of modulation.
5. radiofrequency power amplification unit 4 will be launched through frequency parameter, magnetic field intensity parameter and the depth of modulation of adjustment by the antenna 6 that connects, and be implemented under the different electrical parameters detection to second generation resident identification card IC-card sheet.
Claims (11)
1, a kind of detection method that is used for second generation resident identification card, it comprise use a computer, main control circuit unit, radio frequency carrier frequency control module, radio field intensity and carrier modulation degree of depth control module, radiofrequency power amplification unit and antenna, its key step is:
1. the steering order sent of main control circuit unit receiving computer, and the output frequency control signal is given radio frequency carrier frequency control module and voltage control signal and is treated that the adjusting data signal gives radio field intensity and carrier modulation degree of depth control module respectively;
2. the radio frequency carrier frequency control module is exported the variation of different frequencies to radiofrequency power amplification unit control output frequency parameter, and the voltage that radio field intensity is different with the output of carrier modulation degree of depth control module is controlled the variation of output magnetic field intensity parameter and the adjustment of carrying out depth of modulation to radiofrequency power amplification unit;
3. according to the variation of frequency parameter, magnetic field intensity parameter and depth of modulation of output, be implemented under the different electrical parameters detection to second generation resident identification card IC-card sheet.
2, the detection method that is used for second generation resident identification card according to claim 1, it is characterized in that the variation of described frequency parameter is to select the frequency of three crystal oscillators of 13.56MHz, 13.553MHz and 13.567MHz to export to radiofrequency power amplification unit respectively by the three elections switch that is provided with in the radio frequency carrier frequency control module.
3, the detection method that is used for second generation resident identification card according to claim 1, it is characterized in that, the variation of described magnetic field intensity parameter is to obtain the different output voltage of two-way with carrier modulation degree of depth control module for radio field intensity by main control circuit unit output two-way voltage control signal, and selects arbitrary voltage to export to radiofrequency power amplification unit by the adjusting data signal controlling either-or switch for the treatment of of main control circuit unit output.
4, the detection method that is used for second generation resident identification card according to claim 1, it is characterized in that, described adjustment to depth of modulation is under the situation that arbitrary road voltage is constant in the different output voltage of two-way, control the variation that another road voltage is exported by voltage control signal, make the output amplitude difference of radiofrequency power amplification unit.
5, realize the described equipment that is used for second generation resident identification card detection method of claim 1, it comprises main control circuit unit (1), radio frequency carrier frequency control module (2), radio field intensity and carrier modulation degree of depth control module (3) and radiofrequency power amplification unit (4), it is characterized in that, the input end of described main control circuit unit (1) is connected with the output of computing machine (5), main control circuit unit (1) is connected to radiofrequency power amplification unit (4) by radio frequency carrier frequency control module (2) and radio field intensity and carrier modulation degree of depth control module (3) respectively, and the output of radiofrequency power amplification unit (4) connects antenna (6).
6, the checkout equipment that is used for second generation resident identification card according to claim 5, it is characterized in that, described radio frequency carrier frequency control module (2) is built-in with multiselect one switch (7), the input end of multiselect one switch (7) connects the crystal oscillator of different frequency respectively, and the output terminal of multiselect one switch (7) is as the frequency source of radiofrequency power amplification unit (4).
7, the checkout equipment that is used for second generation resident identification card according to claim 6 is characterized in that, described multiselect one switch (7) is a three elections switch, and the frequency of three crystal oscillators is respectively 13.56MHz, 13.553MHz and 13.567MHz.
8, the checkout equipment that is used for second generation resident identification card according to claim 5, it is characterized in that, described radio field intensity and carrier modulation degree of depth control module (3) are built-in with variable voltage source one (8), variable voltage source two (9) and either-or switch (10), the data input pin of either-or switch (10) connects variable voltage source one (8) and variable voltage source two (9) respectively, the control input end of either-or switch (10) connects main control circuit unit (1), and the output terminal of either-or switch (10) is as the power supply of radiofrequency power amplification unit (4).
9, the checkout equipment that is used for second generation resident identification card according to claim 5, it is characterized in that, described main control circuit unit (1) adopts the RS232 interface to be connected with the output of computing machine (5), and the chip model that main control circuit unit (1) is used is AT89C52 and MAX3232.
10, the checkout equipment that is used for second generation resident identification card according to claim 8, it is characterized in that, all use model to be the chip of LM317 and model digital regulation resistance in variable voltage source one (8) in described radio field intensity and the carrier modulation degree of depth control module (3) and the variable voltage source two (9) as MCP41010.
11, the checkout equipment that is used for second generation resident identification card according to claim 5 is characterized in that, the model of the power amplification triode that uses in the described radiofrequency power amplification unit (4) is FDV301.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100897794A CN100514350C (en) | 2006-07-17 | 2006-07-17 | Detecting method used for the second generation resident identification card and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100897794A CN100514350C (en) | 2006-07-17 | 2006-07-17 | Detecting method used for the second generation resident identification card and equipment thereof |
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| CN101110099A CN101110099A (en) | 2008-01-23 |
| CN100514350C true CN100514350C (en) | 2009-07-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103048538B (en) * | 2012-11-29 | 2015-07-22 | 焦作市神盾科技有限公司 | Method for testing collective frequency of radio frequency card and tester for realizing method |
| CN106645986A (en) * | 2016-11-29 | 2017-05-10 | 北京中电华大电子设计有限责任公司 | Handheld device for automatically detecting field intensity |
| CN107563470A (en) * | 2017-10-23 | 2018-01-09 | 公安部第研究所 | A kind of hand-held personnel identity perceives and metal detection device |
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