CN106908709A - The system and method for electromagnetic distu during detection intelligent card non-contact communication - Google Patents
The system and method for electromagnetic distu during detection intelligent card non-contact communication Download PDFInfo
- Publication number
- CN106908709A CN106908709A CN201510980372.XA CN201510980372A CN106908709A CN 106908709 A CN106908709 A CN 106908709A CN 201510980372 A CN201510980372 A CN 201510980372A CN 106908709 A CN106908709 A CN 106908709A
- Authority
- CN
- China
- Prior art keywords
- host computer
- unit
- signal
- data
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2855—Environmental, reliability or burn-in testing
- G01R31/2872—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation
- G01R31/2879—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation related to electrical aspects, e.g. to voltage or current supply or stimuli or to electrical loads
Abstract
The invention discloses a kind of system of electromagnetic distu during detection intelligent card non-contact communication, signal generating unit, the test instruction that host computer unit is issued is converted to analog signal and sends to tested smart card, and the analog signal that tested smart card is returned is converted into data signal is transferred to host computer unit；Signal gathering unit, is connected with the signal generating unit, for recording the carrier waveform in the specified time period；Host computer unit, is connected with the signal generating unit and signal gathering unit, for the carrier waveform, process test data and the discriminating test result that are recorded with signal generating unit interactive testing instruction, acquisition signal processing unit.The invention discloses a kind of method of electromagnetic distu during detection intelligent card non-contact communication.The present invention can enable electromagnetic distu quantify, and be supported for assessment smart card provides strong data with the presence or absence of demodulation risk in advance.
Description
Technical field
Lead to the present invention relates to smart card detection technical field, more particularly to a kind of noncontact of detection smart card
The system of electromagnetic distu during letter.The invention further relates to one kind detection intelligent card non-contact communication process
The method of middle electromagnetic distu.
Background technology
Smart card, also referred to as CPU card, carry microprocessor CPU, memory cell in the integrated circuit in card
(including random access memory ram, program memory ROM, user data memory EEPROM) and core
Piece operating system COS.Smart card equipped with COS equivalent to a microcomputer, not only with data
Store function, while having the functions such as command process and data security protecting.The communication mode of smart card
Comprising two kinds of contact and noncontact.Contactless communication frequency between smart card and card reader is
13.56MHz, card reader sends energy and data by electromagnetic field, and card is coupled by radio circuit and connect
The start-up operation of the integrated circuits such as CPU is supplied after receiving energy, and data exchange is carried out with card reader, from
And various applications can be completed.Contactless communication has high, swift and convenient to operate etc. excellent using reliability
Point, but triggering card reader is also easier to simultaneously the problems such as demodulate in advance.
Card reader demodulate in advance problem be due to some smart cards CPU to instruction carried out it is a series of
The operation such as quick complex calculation or continuous several times read-write EEPROM makes card energy ezpenditure increase suddenly, leads
Cause carrier waveform short time electromagnetic distu by a small margin occur, be demodulated more sensitive Card Reader chance error and know
Not Wei card return signal, i.e., card reader card signal correctly return before carry out understanding transfer in advance
Make, so as to correct card cannot be received return, in causing the interaction between smart card and card reader
It is disconnected.Because the parameters such as the generation for demodulating phenomenon in advance is linear with card reader antenna, demodulation sensitivity have close
Cut association, the card reader model of every profession and trade application is various, thus with prior art routinely examination in very
Hardly possible judges whether card can occur to demodulate problem in advance on a certain model card reader.
The content of the invention
The technical problem to be solved in the present invention is to provide electricity during a kind of detection intelligent card non-contact communication
The system of magnetic disturbance, can enable electromagnetic distu quantify, and be demodulated in advance for assessment smart card whether there is
Risk provides strong data and supports；Therefore, the present invention also provides a kind of detection smart card noncontact
The method of electromagnetic distu in communication process.
In order to solve the above technical problems, electromagnetism is disturbed during detection intelligent card non-contact communication of the invention
Dynamic system, including：
One signal generating unit, the test instruction for host computer unit to be issued is converted to analog signal
Send to tested smart card, and the analog signal that tested smart card is returned is converted into data signal and pass
It is handed to the host computer unit；
One signal gathering unit, is connected with the signal generating unit, for recording the specified time period
Interior carrier waveform；
One host computer unit, is connected with the signal generating unit and signal gathering unit, for
The signal generating unit interactive testing instruction, the carrier waveform of the acquisition signal processing unit record,
Process test data and discriminating test result.
The method of electromagnetic distu, comprises the following steps during the detection intelligent card non-contact communication：
Step 1, use with reference to card detecting system ground noise；
Step 2, write and Run Script, tested smart card is reached original state to be tested；
Step 3, transmission test are instructed and judge the correctness of return value；
Step 4, use signal gathering unit record the frame stand-by period in carrier waveform；
Step 5, carrier waveform, process test data and discriminating test result are obtained by host computer unit.
System and side using electromagnetic distu during the detection intelligent card non-contact communication that the present invention is provided
Method, can enable the electromagnetic distu in the frame stand-by period quantify, and filled up the country and disturbed in smart card electromagnetism
Blank in dynamic detection, while to predict that it is strong that smart card is provided with the presence or absence of demodulation risk in advance
Data are supported.
System provided by the present invention is easy to build, and the instrument and equipment for being used more is commonly used, wherein
Host computer unit collection hardware driving control, test instruction transmitting-receiving, sampled data acquisition, data operation,
In one, simple to operate, the speed of service is fast for interpretation of result.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be right
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described.
Fig. 1 is the system principle diagram of electromagnetic distu during the detection intelligent card non-contact communication；
Fig. 2 is the method flow diagram of electromagnetic distu during the detection intelligent card non-contact communication；
Fig. 3 is the method flow diagram of detecting system ground noise.
Specific embodiment
To enable that goal of the invention of the invention, feature, advantage are more obvious and understandable, below
The accompanying drawing in the present invention will be combined, the technical scheme in the present invention is clearly and completely described.
Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained all other embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the system of electromagnetic distu is following during the detection intelligent card non-contact communication
In embodiment, including signal generating unit, signal gathering unit and host computer unit.Wherein：
Signal generating unit is by a signal generator and three layers of antenna sets being connected with the signal generator
Into the responsible test instruction for issuing host computer test software is converted to analog signal and sends to tested intelligence
Can block, while the analog signal that card is returned is converted into data signal is back to host computer test software.
The oscillography that signal gathering unit is matched by the oscillograph and the oscillograph of sample rate >=1GSa/s
Device is popped one's head in and is constituted with reference to card, and oscilloprobe is arranged on the oscillograph.Oscillograph with its phase
The simulation when probe matched somebody with somebody gathers signal generator and tested smart card communications from three layers of intermediate layer of antenna
Signal, and by adjusting the carrier waveform in the oscillograph recording specified time period.
Host computer test software of the host computer unit by a PC and in the PC is constituted, and is used
In the carrier wave that the signal processing unit record is instructed, obtained with the signal generating unit interactive testing
Waveform, process test data and discriminating test result.
The interactive testing instruction refers to driving letter of the host computer test software by call signal generator
Configuration-direct, the interaction of test instruction are counted up into, is specifically included：Adjusted by host computer test software
The electromagnetic field intensity that three layers of antenna sends；By Python (a kind of object-oriented, explanation type computer
Programming language, alias " boa language "；Also being called for having is a kind of script of open source code
Programming language) language write in host computer test software test script realize test instruction transmission with
Receive.
The carrier waveform for obtaining the signal processing unit record refers to host computer test software by calling
The driving function of oscillograph obtains the waveform of its record, and (comma separated value has to be converted into csv
When be also referred to as character separation value) form saves as data 1-1.
Process test data refer to the calculation that the computational load provided according to ISO/IEC 14443 adjusts depth
Method carries out computing to the data 1-1, and operation result is saved as into data 1-2 with csv forms.
Discriminating test result is to judge whether data 1-2 meets in the specifications of ISO/IEC 14443 on electricity
The judgment criteria of magnetic disturbance, as met, represents that tested smart card has successfully passed electromagnetic distu detection,
To in graphical form be shown beyond the data of judgment criteria with if as not being inconsistent.
With reference to shown in Fig. 2, the method for electromagnetic distu during the detection intelligent card non-contact communication,
Concrete operations flow includes in the following embodiments：
Step 1, use with reference to card detecting system ground noise；
Step 2, intelligence to be measured is placed in three layers of upper surface of antenna, then tests soft by host computer
Part configuration field intensity is desired value；
Step 3, test script is write in host computer test software with Python, then made
Test is sent with host computer test software control signal generator to tested smart card by three layers of antenna to refer to
Order, makes tested smart card reach original state to be tested；
Step 4, using host computer test software control signal generator by three layers of antenna to tested intelligence
Card sends test instruction, while the response that the tested smart card of reception is returned judges whether it returns with expected
Value is consistent；
Step 5, oscilloprobe is placed in three layers of antenna intermediate layer, is tested by described in oscillograph recording
Carrier waveform in the command frame stand-by period；
Step 6, use host computer unit to obtain carrier waveform, process test data, judge tested intelligence
Card whether there is electromagnetic interference, and concrete operation step is followed successively by：
Step 601, called by host computer test software the driving function of oscillograph obtain its record load
Waveform, is converted into the data 3-1 of csv forms；
Step 602, the computational load provided according to ISO/IEC 14443 adjust the algorithm process institute of depth
Data 3-1 is stated, operation result is saved as into data 3-2 with csv forms；
Step 603, judge whether the data 3-2 meets in the specifications of ISO/IEC 14443 on electromagnetism
The judgment criteria of disturbance, as met, represents that tested card has successfully passed electromagnetic distu detection, is not inconsistent such as
To then be shown in scattergram form beyond the data point of judgment criteria.
In conjunction with shown in Fig. 3, the method for the detecting system ground noise, in the following embodiments
Concrete operations flow includes：
Step a, configure signal generator by host computer test software to adjust the electricity that three layers of antenna are provided
Magnetic field intensity and carrier frequency, field intensity are configured to 1.5A/m, and carrier frequency is configured to 13.56MHz；
Step b, by with reference to being placed in three layers of upper surface of antenna, regulation makes its output voltage be with reference to card
6V；
Step c, oscilloprobe is placed in three layers of antenna intermediate layer, by oscillograph recording at least 250 μ s
Carrier waveform；
Step d, using host computer unit decision-making system ground noise, concrete operation step is followed successively by：
Step d01, called by host computer test software the driving function of oscillograph obtain its record load
Waveform, is converted into the data 2-1 of csv forms；
Step d02, the computational load provided according to ISO/IEC 14443 adjust the algorithm process institute of depth
Data 2-1 is stated, operation result is saved as into data 2-2 with csv forms；
Step d03, judge whether the data 2-2 meets noise criteria, can be to tested if meeting
Smart card carries out electromagnetic distu test, as not being inconsistent, needs to make signal gathering unit further optimization directly
To reaching noise criteria.
Field intensity is configured to by 7.5A/m, repeat step a~d by host computer test software.
Claims (12)
1. it is a kind of detect intelligent card non-contact communication during electromagnetic distu system, it is characterised in that
Including：One signal generating unit, a signal gathering unit and a host computer unit；
The signal generating unit, the test instruction for the host computer unit to be issued is converted to mould
Intend signal to send to tested smart card, and the analog signal that tested smart card is returned is converted into numeral
Signal transmission is to the host computer unit；
The signal gathering unit, is connected with the signal generating unit, for recording the specified time
Carrier waveform in section；
The host computer unit, is connected with the signal generating unit and signal gathering unit, is used for
With signal generating unit interactive testing instruction, the carrier wave ripple of the signal processing unit record is obtained
Shape, process test data and discriminating test result.
2. the system as claimed in claim 1, it is characterised in that：The signal generating unit is by a letter
Number generator and the three floor antenna composition being connected with the signal generator.
3. the system as claimed in claim 1, it is characterised in that：The signal gathering unit is by a ginseng
Picture ID, an oscillograph and the oscilloprobe on the oscillograph composition.
4. the system as claimed in claim 1, it is characterised in that：The host computer unit is by a PC
Machine and the host computer test software in the PC are constituted.
5. the system as claimed in claim 1, it is characterised in that：On interactive testing instruction refers to
Position machine test software completes configuration-direct, test and instructs by the driving function of call signal generator
Interaction, specifically includes：The electromagnetic field intensity that three layers of antenna send is adjusted by host computer test software；
By Python write in host computer test software test script realize test instruction transmission with
Receive.
6. the system as claimed in claim 1, it is characterised in that：Obtain the signal processing unit note
The carrier waveform of record refers to that host computer test software is recorded by calling the driving function of oscillograph to obtain it
Waveform, and be converted into csv forms and save as data 1-1.
7. the system as claimed in claim 1, it is characterised in that：Process test data refer to according to
The algorithm of the computational load regulation depth that ISO/IEC 14443 is provided carries out computing to the data 1-1,
Operation result is saved as into data 1-2 with csv forms.
8. the system as claimed in claim 1, it is characterised in that：Discriminating test result is to judge data
Whether 1-2 meets the judgment criteria on electromagnetic distu in the specifications of ISO/IEC 14443, the table if meeting
Show that tested smart card has successfully passed electromagnetic distu detection, will be beyond the number of judgment criteria as not being inconsistent with if
Diagrammatic form shows according to this.
9. it is a kind of detect intelligent card non-contact communication during electromagnetic distu method, it is characterised in that
Comprise the following steps：
Step 1, use with reference to card detecting system ground noise；
Step 2, write and Run Script, tested smart card is reached original state to be tested；
Step 3, transmission test are instructed and judge the correctness of return value；
Step 4, use signal gathering unit record the frame stand-by period in carrier waveform；
Step 5, carrier waveform, process test data and discriminating test result are obtained by host computer unit.
10. method according to claim 9, it is characterised in that detecting system described in step 1
The method of ground noise, comprises the following steps：
Step 101, the electromagnetic field intensity that the signal generating unit is configured by the host computer unit；
Step 102, the carrier waveform specified by signal gathering unit record in the time；
Step 103, the carrier waveform is converted to by csv forms by the host computer unit, then
Ground noise is calculated according to load modulation depth algorithm, judges whether it meets standard.
11. methods according to claim 10, it is characterised in that judge whether ground noise accords with
The method of standardization comprises the following steps：
The driving function of oscillograph is called to obtain its carrier waveform for recording by host computer test software,
It is converted into the data 2-1 of csv forms；
Data described in the algorithm process of the computational load regulation depth provided according to ISO/IEC 14443
2-1, data 2-2 is saved as by operation result with csv forms；
Judge whether the data 2-2 meets noise criteria, as met, electricity is carried out to tested smart card
Magnetic disturbance is tested；As not being inconsistent, need to make signal gathering unit further optimization until reaching noise mark
It is accurate.
12. methods according to claim 9, it is characterised in that by upper described in step 5
The method that machine unit obtains sample waveform, process test data and discriminating test result comprises the following steps：
When step 501, the frame for obtaining the signal gathering unit record using the host computer unit are waited
The carrier waveform is simultaneously converted to csv forms and is preserved by interior carrier waveform；
Step 502, using the host computer unit according to load modulation depth algorithm to the csv forms
Data are calculated and operation result are preserved with csv forms；
Step 503, using the host computer unit according in the specifications of ISO/IEC 14443 provide electromagnetism
Disturbance criterion is judged the operation result；
Step 504, the data that the electromagnetic distu criterion will not be met using the host computer unit
Point shows in scattergram form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980372.XA CN106908709A (en) | 2015-12-23 | 2015-12-23 | The system and method for electromagnetic distu during detection intelligent card non-contact communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980372.XA CN106908709A (en) | 2015-12-23 | 2015-12-23 | The system and method for electromagnetic distu during detection intelligent card non-contact communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106908709A true CN106908709A (en) | 2017-06-30 |
Family
ID=59200362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510980372.XA Pending CN106908709A (en) | 2015-12-23 | 2015-12-23 | The system and method for electromagnetic distu during detection intelligent card non-contact communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106908709A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505560A (en) * | 2017-08-28 | 2017-12-22 | 北京银联金卡科技有限公司 | Energy parameter adjustment system and method in chip error injection test |
| CN108197019A (en) * | 2017-12-20 | 2018-06-22 | 大唐微电子技术有限公司 | Test system, test equipment, the test method of smart card |
| CN111337766A (en) * | 2020-02-21 | 2020-06-26 | 中山市德马汽车零部件有限公司 | Automobile electronic and electric appliance testing method and device and storage medium |
| CN113759237A (en) * | 2021-09-29 | 2021-12-07 | 北京中电华大电子设计有限责任公司 | Non-contact intelligent card testing device and testing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201403B1 (en) * | 1997-09-22 | 2001-03-13 | Nortel Networks Limited | Integrated circuit package shielding characterization method and apparatus |
| CN1567219A (en) * | 2003-07-04 | 2005-01-19 | 上海华园微电子技术有限公司 | Test circuit for non-contact type integrated circuit and test method thereof |
| JP3634690B2 (en) * | 1999-09-16 | 2005-03-30 | 株式会社東芝 | Semiconductor device EMI measurement system |
| CN1948977A (en) * | 2005-10-11 | 2007-04-18 | 上海华虹集成电路有限责任公司 | Non-contacting intelligent card noise detecting method and detecting circuit thereof |
| CN101349729A (en) * | 2008-09-04 | 2009-01-21 | 北京航空航天大学 | Electromagnetic compatible transmitting test method |
| CN102928713A (en) * | 2012-11-02 | 2013-02-13 | 北京美尔斯通科技发展股份有限公司 | Background noise measuring method of magnetic antennas |
| CN105068910A (en) * | 2015-08-13 | 2015-11-18 | 大唐微电子技术有限公司 | Testing method and apparatus for smart card |
-
2015
- 2015-12-23 CN CN201510980372.XA patent/CN106908709A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201403B1 (en) * | 1997-09-22 | 2001-03-13 | Nortel Networks Limited | Integrated circuit package shielding characterization method and apparatus |
| JP3634690B2 (en) * | 1999-09-16 | 2005-03-30 | 株式会社東芝 | Semiconductor device EMI measurement system |
| CN1567219A (en) * | 2003-07-04 | 2005-01-19 | 上海华园微电子技术有限公司 | Test circuit for non-contact type integrated circuit and test method thereof |
| CN1948977A (en) * | 2005-10-11 | 2007-04-18 | 上海华虹集成电路有限责任公司 | Non-contacting intelligent card noise detecting method and detecting circuit thereof |
| CN101349729A (en) * | 2008-09-04 | 2009-01-21 | 北京航空航天大学 | Electromagnetic compatible transmitting test method |
| CN102928713A (en) * | 2012-11-02 | 2013-02-13 | 北京美尔斯通科技发展股份有限公司 | Background noise measuring method of magnetic antennas |
| CN105068910A (en) * | 2015-08-13 | 2015-11-18 | 大唐微电子技术有限公司 | Testing method and apparatus for smart card |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505560A (en) * | 2017-08-28 | 2017-12-22 | 北京银联金卡科技有限公司 | Energy parameter adjustment system and method in chip error injection test |
| CN107505560B (en) * | 2017-08-28 | 2019-09-06 | 北京银联金卡科技有限公司 | Energy parameter in chip error injection test adjusts system and method |
| CN108197019A (en) * | 2017-12-20 | 2018-06-22 | 大唐微电子技术有限公司 | Test system, test equipment, the test method of smart card |
| CN111337766A (en) * | 2020-02-21 | 2020-06-26 | 中山市德马汽车零部件有限公司 | Automobile electronic and electric appliance testing method and device and storage medium |
| CN113759237A (en) * | 2021-09-29 | 2021-12-07 | 北京中电华大电子设计有限责任公司 | Non-contact intelligent card testing device and testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7298266B2 (en) | RFID communication systems and methods | |
| JP5237431B2 (en) | Detection system for smart cards and identification devices | |
| CN106908709A (en) | The system and method for electromagnetic distu during detection intelligent card non-contact communication | |
| CN102539970A (en) | RFID (radio frequency identification) equipment testing method and system | |
| MX2007000542A (en) | Payment card signal characterization methods and circuits. | |
| CN101592704A (en) | Radio frequency identification RFID test method | |
| US8442796B2 (en) | Method and system for simulating a proximity-based transaction device | |
| CN101592705A (en) | Radio frequency identification RFID test system | |
| CN201527655U (en) | Non-contact IC card double-frequency card reading device with mobile phone card swiping distance detecting function | |
| CN202513936U (en) | Testing device of radio frequency tag | |
| CN201654821U (en) | Radio frequency identification electronic tag simulator | |
| CN101170324A (en) | Testing system and testing method of near-field communication device | |
| CN103033683A (en) | Passive radio frequency identification devices (RFID) electronic tag resonant frequency detection system based on Chirp signal and passive RFID electronic tag resonant frequency detection method based on the Chirp signal | |
| CN101093535A (en) | Method for testing whether there is responsion from passive UHF label or not | |
| CN105656574B (en) | The detection device of NFC reader sensitivity | |
| CN102542222B (en) | Radio frequency identification technique is applied to the apparatus and method for of subscript operation | |
| CN102065171B (en) | Method and device for controlling communication distance of radio-frequency SIM card by using ultrasonic ranging | |
| CN101996303B (en) | Method and device for controlling communication distance in radio frequency SIM (Subscriber Identity Module) card communication system by applying magnetic induction | |
| CN208061213U (en) | Signal mode detection device, double frequency passive electronic label and electronic labelling system | |
| CN109799446A (en) | Path Recognition card test system | |
| CN109726607A (en) | Switching method and device, storage medium, the electronic device of communication channel | |
| CN104899623B (en) | A kind of method, system and the equipment of control Non-contact Media Reader modulation depth | |
| Mitsugi et al. | A practical method for UHF RFID interrogation area measurement using battery assisted passive tag | |
| CN107067700A (en) | Gather the methods, devices and systems of power information | |
| CN102065172B (en) | Method and device for controlling communication distance of radio frequency SIM card by infrared distance measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |