CN107045617B - Device and method for identifying authenticity of IC card - Google Patents

Device and method for identifying authenticity of IC card Download PDF

Info

Publication number
CN107045617B
CN107045617B CN201710127621.XA CN201710127621A CN107045617B CN 107045617 B CN107045617 B CN 107045617B CN 201710127621 A CN201710127621 A CN 201710127621A CN 107045617 B CN107045617 B CN 107045617B
Authority
CN
China
Prior art keywords
card
signal
excitation voltage
voltage
antenna
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.)
Active
Application number
CN201710127621.XA
Other languages
Chinese (zh)
Other versions
CN107045617A (en
Inventor
张开生
王小瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN201710127621.XA priority Critical patent/CN107045617B/en
Publication of CN107045617A publication Critical patent/CN107045617A/en
Application granted granted Critical
Publication of CN107045617B publication Critical patent/CN107045617B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

A device and method for distinguishing the true and false of IC card, couple IC card reader-writer with main control board, take charge of the information interaction between main control board and IC card, namely the card is swiped; the micro voltage amplifier is connected with an antenna receiving end of the IC card reader-writer and amplifies alternating voltage signals received by the antenna; the bridge rectifier circuit is responsible for converting the amplified alternating signals into direct-current voltage signals; when a new card is swiped for the first time, the main control board collects direct-current voltage signals output by the bridge rectifier circuit and carries out AD conversion, the obtained numerical value is processed to remove common-mode interference, the common-mode interference is marked as dimensionless IC card excitation voltage and is associated with an IC card number, and the dimensionless IC card excitation voltage is stored in a background database through a network; when the card is later swiped, if the card number is not matched with the excitation voltage and the database storage information, the card is judged to be a false card.

Description

一种鉴别IC卡真伪的装置及方法A device and method for identifying authenticity of IC card

技术领域technical field

本发明属于电子安全和射频识别技术领域，特别涉及一种鉴别IC卡真伪的装置及方法。The invention belongs to the technical field of electronic security and radio frequency identification, and in particular relates to a device and method for identifying the authenticity of an IC card.

背景技术Background technique

IC卡广泛应用于社会的各行各业，如校园一卡通，门禁卡，电梯卡，银行卡。但是，现如今一些不法分子通过特殊手段对IC卡进行复制，使用复制卡进行非法活动，给人们的生命和财产安全造成了巨大的安全隐患。IC cards are widely used in all walks of life in society, such as campus cards, access control cards, elevator cards, and bank cards. However, some criminals now copy the IC card by special means, and use the copied card to carry out illegal activities, which has caused huge security risks to people's life and property safety.

发明内容SUMMARY OF THE INVENTION

为了克服上述现有技术的缺点，本发明的目的在于提供一种鉴别IC卡真伪的装置及方法，能鉴别出原卡与复制卡，具有可靠性高、适用范围广的特点。In order to overcome the above shortcomings of the prior art, the purpose of the present invention is to provide a device and method for identifying the authenticity of an IC card, which can identify the original card and the duplicate card, and has the characteristics of high reliability and wide application range.

为了实现上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:

一种鉴别IC卡真伪的装置，包括：A device for identifying the authenticity of an IC card, comprising:

带有天线的IC卡读写器5，用于读取IC卡；IC card reader 5 with antenna for reading IC cards;

微小电压放大器1，输入端与IC卡读写器5的天线相连，接收读卡时在天线端的激励电压信号，进行放大；Micro voltage amplifier 1, the input end is connected to the antenna of IC card reader 5, receives the excitation voltage signal at the antenna end when the card is read, and amplifies;

桥式整流电路2，输入端与微小电压放大器1的输出端相连接，将交变的电压信号转换为直流电压信号；The bridge rectifier circuit 2, the input terminal is connected with the output terminal of the micro voltage amplifier 1, and converts the alternating voltage signal into a DC voltage signal;

主控板3，与桥式整流电路2的输出端相连，接收直流电压信号进行AD转换，得到激励电压V并与卡号关联，与存储的信号进行比较，如果信号一致，则鉴别为真卡，如不一致，则鉴别为伪卡；The main control board 3 is connected to the output end of the bridge rectifier circuit 2, receives the DC voltage signal for AD conversion, obtains the excitation voltage V and associates it with the card number, and compares it with the stored signal. If the signal is consistent, it is identified as a real card. If they are inconsistent, it will be identified as a fake card;

LCD显示屏4，与主控板3相连，显示鉴别结果。The LCD display screen 4, which is connected with the main control board 3, displays the identification result.

所述IC卡读写器5在天线位置设有卡槽，保证每次刷卡时与IC卡的相对位置是固定的。The IC card reader/writer 5 is provided with a card slot at the antenna position to ensure that the relative position to the IC card is fixed each time the card is swiped.

所述IC卡读写器5的天线与3296W-100 10欧电位器串联，对其进行校准。The antenna of the IC card reader/writer 5 is connected in series with a 3296W-100 10-ohm potentiometer to calibrate it.

所述IC卡读写器5型号为RC522。The model of the IC card reader/writer 5 is RC522.

所述微小电压放大器1核心器件采用AD620，能够对毫伏级交直流信号进行1000倍的放大。The core device of the tiny voltage amplifier 1 adopts AD620, which can amplify the millivolt-level AC and DC signals by 1000 times.

所述主控板3通过网络接口与后台数据库6进行通信，将采集到的IC卡激励电压V与卡号存储至数据库，在鉴别时，通过卡号在后台数据库6进行信息查询。The main control board 3 communicates with the background database 6 through a network interface, and stores the collected IC card excitation voltage V and card number in the database. During identification, information is queried in the background database 6 through the card number.

本发明还提供了一种利用所述鉴别IC卡真伪的装置鉴别IC卡真伪的方法：The present invention also provides a method for identifying the authenticity of the IC card by utilizing the device for identifying the authenticity of the IC card:

在使用之前，通过电位器对读写器5天线上的初始电压值进行校准，确保所有读卡器5天线初始电压值初始电压值一致；Before use, calibrate the initial voltage value on the antenna of the reader 5 through the potentiometer to ensure that the initial voltage value of the antenna of all card readers 5 is the same;

利用微小电压放大器1接收在IC卡读写器5天线端的激励电压信号，进行放大，利用桥式整流电路2将激励电压信号由交变信号转换为直流信号，主控板3将该直流信号进行AD转换，得到无量纲的信号u，将刷卡前得到的信号u的值记为u0，将刷卡时得到的信号u的值记为u1，通过u1-u0去除由于采集装置差异所导致的共模干扰，将结果记为V，V为IC卡对天线的激励电压，且V值不受IC卡读写器5、微小电压放大器1和桥式整流电路2硬件差异的影响，与采集平台无关，只与IC卡的差异有关；The micro voltage amplifier 1 is used to receive the excitation voltage signal at the antenna end of the IC card reader 5 and amplify it, and the bridge rectifier circuit 2 is used to convert the excitation voltage signal from an alternating signal to a DC signal, and the main control board 3 processes the DC signal. AD conversion to obtain a dimensionless signal u, the value of the signal u obtained before swiping the card is recorded as u0, the value of the signal u obtained when the card is swiped is recorded as u1, and the common mode caused by the difference of the acquisition device is removed by u1-u0 Interference, record the result as V, V is the excitation voltage of the IC card to the antenna, and the V value is not affected by the hardware differences of the IC card reader 5, the micro voltage amplifier 1 and the bridge rectifier circuit 2, and has nothing to do with the acquisition platform. Only related to the difference of IC card;

将新卡首次刷卡时主控板得到的激励电压V记为V0，并与卡号关联，存入后台数据库6；The excitation voltage V obtained by the main control board when the new card is swiped for the first time is recorded as V0, associated with the card number, and stored in the background database 6;

再次刷卡时，将得到激励电压V记为V1并与卡号关联，与后台数据库6中该卡的激励电压V0进行比较，如果数据一致，则鉴别为真卡，如不一致，则鉴别为伪卡。When the card is swiped again, the obtained excitation voltage V will be recorded as V1 and associated with the card number, and compared with the excitation voltage V0 of the card in the background database 6. If the data is consistent, it will be identified as a real card, if not, it will be identified as a fake card.

与现有技术相比，本发明的有益效果是：本发明通过采集IC卡刷卡时在IC卡读卡器天线上产生的激励电压来协助判断IC卡的真伪，由于生产工艺等各种因素导致每张IC卡的得到的激励电压V是不同的，且激励电压V的值随机分布，所以可靠性高，破解难度大，从而有效地实现了对复制卡鉴别，提高了IC卡的安全性。Compared with the prior art, the beneficial effects of the present invention are: the present invention assists in judging the authenticity of the IC card by collecting the excitation voltage generated on the IC card reader antenna when the IC card is swiped. As a result, the excitation voltage V obtained by each IC card is different, and the value of the excitation voltage V is randomly distributed, so the reliability is high and the cracking is difficult, thus effectively realizing the identification of the duplicate card and improving the security of the IC card. .

附图说明Description of drawings

图1为本发明的硬件结构框图。FIG. 1 is a block diagram of the hardware structure of the present invention.

图2为本发明的工作流程图。FIG. 2 is a working flow chart of the present invention.

具体实施方式Detailed ways

下面结合附图和实施例详细说明本发明的实施方式。The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.

如图1所示，一种鉴别IC卡真伪的装置，包括有IC卡读写器5，IC卡读写器5与主控板3相连；微小电压放大器1输入端与IC卡读写器5的天线相连，桥式整流电路2输入端与微小电压放大器1的输出端相连接，桥式整流电路2的输出端与主控板3相连。主控板3与LCD显示屏4相连，当刷卡时将IC卡的真伪结果进行显示。IC卡读写器5在天线位置设有卡槽，保证每次读卡时IC卡与读卡器之间的相对位置是固定的。主控板3可以将桥式整流电路2输出的电压信号进行AD转换，得到激励电压V并与卡号关联。主控板3可以通过网络接口与后台数据库6进行通信，将采集到的IC卡激励电压V与卡号存储至数据库，并可以通过卡号在后台数据库进行信息查询。As shown in Figure 1, a device for identifying the authenticity of an IC card includes an IC card reader/writer 5, the IC card reader/writer 5 is connected to the main control board 3; the input end of the tiny voltage amplifier 1 is connected to the IC card reader/writer 5 5 is connected to the antenna, the input end of the bridge rectifier circuit 2 is connected to the output end of the micro voltage amplifier 1, and the output end of the bridge rectifier circuit 2 is connected to the main control board 3. The main control board 3 is connected with the LCD display screen 4, and the authenticity result of the IC card is displayed when the card is swiped. The IC card reader/writer 5 is provided with a card slot at the antenna position to ensure that the relative position between the IC card and the card reader is fixed each time the card is read. The main control board 3 can perform AD conversion on the voltage signal output by the bridge rectifier circuit 2 to obtain the excitation voltage V and associate it with the card number. The main control board 3 can communicate with the background database 6 through the network interface, store the collected IC card excitation voltage V and the card number in the database, and can query the information in the background database through the card number.

IC卡读写器5型号为RC522，其天线与3296W-100 10欧电位器串联，可对其进行校准。IC card reader 5 model is RC522, its antenna is connected in series with 3296W-100 10 ohm potentiometer, which can be calibrated.

所述的微小电压放大器1所述的微小电压放大器核心器件采用AD620，可对毫伏级交直流信号进行1000倍的放大。The micro voltage amplifier core device of the micro voltage amplifier 1 adopts AD620, which can amplify the millivolt level AC and DC signals by 1000 times.

如图2所示：一种能鉴别IC卡真伪的方法，不同厂家，不同批次，不同型号的IC卡在IC卡读写器5进行刷卡操作时，在天线接收端激励的电压信号幅值是不同的，通过微小电压放大器1将IC卡读写器5天线接收端的电压信号进行采集并放大，将放大后的信号输出到桥式整流电路2；As shown in Figure 2: a method that can identify the authenticity of IC cards, different manufacturers, different batches, and different types of IC cards are swiped at the IC card reader 5. The voltage signal amplitude excited at the receiving end of the antenna The values are different. The voltage signal at the receiving end of the IC card reader 5 antenna is collected and amplified by the tiny voltage amplifier 1, and the amplified signal is output to the bridge rectifier circuit 2;

桥式整流电路2负责将接受到的交变信号转换为直流电压信号并输出至主控板3。The bridge rectifier circuit 2 is responsible for converting the received alternating signal into a DC voltage signal and outputting it to the main control board 3 .

主控板3将该直流信号进行AD转换，得到无量纲的信号u，将刷卡前得到的信号u的值记为u 0,将刷卡时得到的信号u的值记为u1,通过u1-u0去除由于采集装置差异所导致的共模干扰，将得到结果记为V，V为IC卡对天线的激励电压，且V值不受IC卡读写器5、微小电压放大器1和桥式整流电路2硬件差异的影响，与采集平台无关，只与IC卡的差异有关。The main control board 3 performs AD conversion on the DC signal to obtain a dimensionless signal u. The value of the signal u obtained before swiping the card is recorded as u 0, and the value of the signal u obtained when the card is swiped is recorded as u1, through u1-u0 Remove the common mode interference caused by the difference of the acquisition device, and record the result as V, V is the excitation voltage of the IC card to the antenna, and the value of V is not affected by the IC card reader 5, the micro voltage amplifier 1 and the bridge rectifier circuit 2 The impact of hardware differences is not related to the acquisition platform, but only related to the differences in IC cards.

将新卡首次刷卡时主控板得到的激励电压V记为V0，并与卡号关联，存入后台数据库6；The excitation voltage V obtained by the main control board when the new card is swiped for the first time is recorded as V0, associated with the card number, and stored in the background database 6;

再次刷卡时，将得到激励电压V记为V1并与卡号关联，与后台数据库(6)中该卡的激励电压V0进行比较，如果数据一致，则鉴别为真卡，如不一致，则鉴别为伪卡并在LCD显示屏4上进行显示。When the card is swiped again, the obtained excitation voltage V is recorded as V1 and associated with the card number, and compared with the excitation voltage V0 of the card in the background database (6). card and displayed on the LCD display 4.

主控板3将IC卡读卡器读到的卡号与激励电压V关联存储是为了保证在卡内信息正确的同时，IC卡也是原卡。The main control board 3 stores the card number read by the IC card reader in association with the excitation voltage V to ensure that the IC card is also the original card while the information in the card is correct.

参见图2，本发明的工作流程如下：通过微小电压放大器1将刷卡过程中IC卡读写器5天线接收端的电压信号进行采集并放大，将放大后的信号输出到桥式整流电路2；桥式整流电路2负责将接受到的交变信号转换为直流电压信号并输出至主控板3；Referring to FIG. 2 , the work flow of the present invention is as follows: the voltage signal at the antenna receiving end of the IC card reader/writer 5 during the card swiping process is collected and amplified by the tiny voltage amplifier 1, and the amplified signal is output to the bridge rectifier circuit 2; The rectifier circuit 2 is responsible for converting the received alternating signal into a DC voltage signal and outputting it to the main control board 3;

主控板3将桥式整流电路2输出的直流电压信号进行采集并进行AD转换，得到无量纲的信号u，将刷卡前得到的信号u的值记为u 0,将刷卡时得到的信号u的值记为u1,通过u1-u0去除由于采集装置差异所导致的共模干扰，将得到结果记为V。The main control board 3 collects the DC voltage signal output by the bridge rectifier circuit 2 and performs AD conversion to obtain a dimensionless signal u. The value of is recorded as u1, and the common mode interference caused by the difference of the acquisition device is removed by u1-u0, and the obtained result is recorded as V.

将新卡首次刷卡时主控板得到的激励电压V记为V0，并与卡号关联，存入后台数据库6；The excitation voltage V obtained by the main control board when the new card is swiped for the first time is recorded as V0, associated with the card number, and stored in the background database 6;

再次刷卡时，将得到激励电压V记为V1并与卡号关联，与后台数据库(6)中该卡的激励电压V0进行比较，如果数据一致，则鉴别为真卡，如不一致，则鉴别为伪卡并在LCD显示屏4上进行显示。When the card is swiped again, the obtained excitation voltage V is recorded as V1 and associated with the card number, and compared with the excitation voltage V0 of the card in the background database (6). card and displayed on the LCD display 4.

Claims (7)

1. An apparatus for authenticating an IC card, comprising:
an IC card reader/writer (5) with an antenna for reading an IC card;
the input end of the micro voltage amplifier (1) is connected with an antenna of the IC card reader-writer (5), receives an excitation voltage signal at the antenna end when reading the card and amplifies the excitation voltage signal;
the input end of the bridge rectifier circuit (2) is connected with the output end of the tiny voltage amplifier (1) and converts the alternating voltage signal into a direct current voltage signal;
the main control board (3) is connected with the output end of the bridge rectifier circuit (2), receives the direct-current voltage signal and carries out AD conversion to obtain a dimensionless signal u, the value of the signal u obtained before card swiping is recorded as u0, the value of the signal u obtained during card swiping is recorded as u1, common mode interference caused by the difference of the acquisition devices is removed through u1-u0, the result is recorded as V, the V is the excitation voltage of the IC card to the antenna, the excitation voltage V is associated with the card number and is compared with the stored signal, if the signal is consistent, the card is identified as a true card, and if the signal is inconsistent, the card is identified as a false card;
and the LCD display screen (4) is connected with the main control panel (3) and displays the identification result.
2. The apparatus for authenticating the authenticity of an IC card according to claim 1, wherein the IC card reader/writer (5) is provided with a card slot at the position of the antenna to ensure that the position relative to the IC card is fixed every time the card is swiped.
3. The apparatus for authenticating the authenticity of an IC card according to claim 1, wherein the antenna of the IC card reader/writer (5) is calibrated by connecting in series a 3296W-10010 ohm potentiometer.
4. The apparatus for authenticating an IC card according to claim 1, wherein the IC card reader/writer (5) has a model number RC 522.
5. The apparatus for authenticating the authenticity of an IC card according to claim 1, wherein the core device of the micro voltage amplifier (1) is AD620 capable of amplifying millivolt level ac/dc signals by 1000 times.
6. The apparatus for authenticating the authenticity of an IC card according to claim 1, wherein the main control board (3) communicates with the background database (6) through a network interface, stores the collected excitation voltage V of the IC card and the card number in the database, and performs information inquiry in the background database (6) through the card number during authentication.
7. A method for discriminating authenticity of an IC card using the apparatus for discriminating authenticity of an IC card according to claim 1, characterized in that:
before the card reader is used, the initial voltage values of the antennas of the reader-writer (5) are calibrated through a potentiometer, and the initial voltage values of the antennas of all the card readers (5) are ensured to be consistent;
the method comprises the steps that an excitation voltage signal at the antenna end of an IC card reader-writer (5) is received by a tiny voltage amplifier (1) and amplified, the excitation voltage signal is converted into a direct current signal from an alternating signal by a bridge rectifier circuit (2), the direct current signal is subjected to AD conversion by a main control board (3) to obtain a dimensionless signal u, the value of the signal u obtained before card swiping is recorded as u0, the value of the signal u obtained during card swiping is recorded as u1, common mode interference caused by differences of acquisition devices is removed through u1-u0, the result is recorded as V, the V is the excitation voltage of the IC card to an antenna, the V value is not influenced by hardware differences of the IC card reader-writer (5), the tiny voltage amplifier (1) and the bridge rectifier circuit (2), and is independent of an acquisition platform and only related to the differences of the IC card;
marking an excitation voltage V obtained by a main control board when a new card is swiped for the first time as V0, associating the excitation voltage V with the card number, and storing the excitation voltage V into a background database (6);
when the card is swiped again, the obtained excitation voltage V is marked as V1 and is associated with the card number, the obtained excitation voltage V is compared with the excitation voltage V0 of the card in the background database (6), if the data are consistent, the card is identified as a true card, and if the data are inconsistent, the card is identified as a false card.
CN201710127621.XA 2017-03-06 2017-03-06 Device and method for identifying authenticity of IC card Active CN107045617B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710127621.XA CN107045617B (en) 2017-03-06 2017-03-06 Device and method for identifying authenticity of IC card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710127621.XA CN107045617B (en) 2017-03-06 2017-03-06 Device and method for identifying authenticity of IC card

Publications (2)

Publication Number Publication Date
CN107045617A CN107045617A (en) 2017-08-15
CN107045617B true CN107045617B (en) 2020-01-21

Family

ID=59544624

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710127621.XA Active CN107045617B (en) 2017-03-06 2017-03-06 Device and method for identifying authenticity of IC card

Country Status (1)

Country Link
CN (1) CN107045617B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1288546A (en) * 1998-01-23 2001-03-21 艾普－特普格霍尔德科公司 Device and method for recognizing authentic electronic integrated circuit cards
CN1971579A (en) * 2005-11-24 2007-05-30 上海华虹集成电路有限责任公司 Method for judging validity of non-contact intelligent card
CN102073838A (en) * 2010-12-24 2011-05-25 兆日科技（深圳）有限公司 Method and system for preventing counterfeit by using differentiation of electromagnetic signals of RFID

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090201133A1 (en) * 2007-12-03 2009-08-13 Skyetek, Inc. Method For Enhancing Anti-Cloning Protection of RFID Tags

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1288546A (en) * 1998-01-23 2001-03-21 艾普－特普格霍尔德科公司 Device and method for recognizing authentic electronic integrated circuit cards
CN1971579A (en) * 2005-11-24 2007-05-30 上海华虹集成电路有限责任公司 Method for judging validity of non-contact intelligent card
CN102073838A (en) * 2010-12-24 2011-05-25 兆日科技（深圳）有限公司 Method and system for preventing counterfeit by using differentiation of electromagnetic signals of RFID

Also Published As

Publication number Publication date
CN107045617A (en) 2017-08-15

Similar Documents

Publication Publication Date Title
CN103493070B (en) Use reader device and the method thereof of mobile device
US10248819B2 (en) Card reader and method of use thereof
US8608063B2 (en) Systems and methods employing intermittent scanning techniques to identify sensitive information in data
JP5781094B2 (en) Card reader device and method of use
IL172670A (en) Apparatus, method and system for positively identifying an item
JP2012519889A5 (en)
CN106803316A (en) It is a kind of based on the VTM machines of multiple identities identifying system and its recognition methods
CN101945123A (en) RFID mobile phone and combination key technology-based authenticity identification method
CN103295033A (en) Book self-inspection system and book self-inspection method
CN110246249A (en) Substation's business is self-service to handle method and device
US20100127065A1 (en) Authenticating a document with a magnetic stripe
CN103366194A (en) A Seal Recognition and Recording System
CN107045617B (en) Device and method for identifying authenticity of IC card
CN206594222U (en) A kind of device for differentiating the IC-card true and false
Zhang et al. Identification of cloned HF RFID proximity cards based on RF fingerprinting
CN107045646A (en) Integrate the information collecting device of portrait, fingerprint, identity card
CN102402674B (en) A kind of method for anti-counterfeit based on RF tag and Antiforge system
CN201226167Y (en) POS terminal
CN109272595A (en) One kind is registered and is signed from method and device
CN105426953A (en) Data processing method and system and cash-counting machine
CN106875590A (en) A kind of VTM machines based on recognition of face
CN109147946A (en) A kind of method and data collection system acquiring health data by intelligent water dispenser
CN108830593B (en) Mechanism for preventing illegal brushing of micro-information code
CN204028925U (en) Article characteristics sampling anti-counterfeiting identification device
CN205354163U (en) Local police station handles a case and distinguishes business turn over management system

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
GR01 Patent grant
GR01 Patent grant