WO2011120241A1 - 一种带低频磁通信的射频sim卡冲突检测方法 - Google Patents

一种带低频磁通信的射频sim卡冲突检测方法 Download PDF

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Publication number
WO2011120241A1
WO2011120241A1 PCT/CN2010/071819 CN2010071819W WO2011120241A1 WO 2011120241 A1 WO2011120241 A1 WO 2011120241A1 CN 2010071819 W CN2010071819 W CN 2010071819W WO 2011120241 A1 WO2011120241 A1 WO 2011120241A1
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WO
WIPO (PCT)
Prior art keywords
card
radio frequency
sim card
frequency sim
low frequency
Prior art date
Application number
PCT/CN2010/071819
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English (en)
French (fr)
Inventor
李美祥
杨贤伟
Original Assignee
国民技术股份有限公司
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Filing date
Publication date
Application filed by 国民技术股份有限公司 filed Critical 国民技术股份有限公司
Priority to US13/638,168 priority Critical patent/US9076051B2/en
Priority to EP20100848702 priority patent/EP2555441A4/en
Priority to BR112012025194-5A priority patent/BR112012025194B1/pt
Publication of WO2011120241A1 publication Critical patent/WO2011120241A1/zh

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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
    • G06K7/10118—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 the sensing being preceded by at least one preliminary step
    • G06K7/10128—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 the sensing being preceded by at least one preliminary step the step consisting of detection of the presence of one or more record carriers in the vicinity of the interrogation device
    • 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
    • G06K7/10019—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 resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • 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
    • G06K7/10356—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 using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
    • 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
    • G06K7/10366—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 the interrogation device being adapted for miscellaneous applications
    • G06K7/10475—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 the interrogation device being adapted for miscellaneous applications arrangements to facilitate interaction with further interrogation devices, e.g. such that at least two interrogation devices may function and cooperate in a network of such devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a radio frequency SIM card collision detection method with low frequency magnetic communication. Background technique
  • SIM card Subscribescr iber Identity Model
  • RF SIM card with low-frequency magnetic communication is one example.
  • the RF SIM card with low frequency magnetic communication is a SIM card with radio frequency communication, low frequency magnetic communication and low frequency magnetic induction intensity detection, including the card body and the integrated circuit in the card body.
  • the SIM card of the radio frequency SIM card is provided with a SIM card interface that can be matched with the mobile phone.
  • the integrated circuit in the card body includes a central processing unit CPU, a SIM card memory electrically connected to the processor, a radio frequency transceiver circuit and an interface circuit, and an RF A transceiver antenna electrically connected to the transceiver circuit.
  • the RF SIM card can not only communicate with the mobile communication terminal to realize the function of the ordinary SIM card, but also can communicate with the external processing device (such as a card reader) through the RF transceiver circuit and the interface circuit. The communication process and content are handled by the central processing unit CPU in the RF SIM card.
  • the radio frequency SIM card with low frequency magnetic communication is mostly used for mobile phones.
  • the mobile phone can also have smart cards such as bus travel cards, access control communication cards, credit cards, micro payment cards, time cards and the like. Function, and the information generated during the use of various smart cards can be directly displayed on the screen of the mobile phone, and the user completes the operations through the keyboard of the mobile phone. Work.
  • a radio frequency SIM card with low frequency magnetic communication When a radio frequency SIM card with low frequency magnetic communication is used as a smart card such as a bus pass card, an access control communication card, a credit card, a micro payment card, a time card, etc., the working principle is as follows: a low frequency channel is passed between the card reader and the radio frequency SIM card. Trade distance control, trading through the RF channel.
  • the process of short-range communication between the card reader and the radio frequency SIM card is: the card reader sends a low frequency signal, and the radio frequency SIM card receives the low frequency signal and detects its intensity if the intensity of the low frequency signal received by the radio frequency SIM card reaches a preset
  • the threshold value indicates that the RF SIM card has entered the transaction range of the card reader and can be traded.
  • the RF communication part of the RF SIM card is activated, and the RF SIM card is exchanged with the card reader through the RF channel. If the strength of the low frequency signal received by the radio frequency SIM card does not reach the preset threshold, it indicates that the radio frequency SIM card does not enter the transaction range of the card reader, and the transaction cannot be performed. At this time, the radio frequency communication part of the radio frequency SIM card is not When activated, the RF SIM card cannot establish a connection to the RF channel of the reader.
  • the RF SIM card In order to avoid misreading the card operation, the RF SIM card needs to enter a certain area of the card reader to open the transaction function.
  • the low-frequency magnetic induction detection can effectively control the distance between different types of mobile communication terminals and readers within a certain range.
  • the transaction result is generally not confirmed by the user on the mobile communication terminal.
  • radio frequency SIM card short-range communication system with low-frequency magnetic communication
  • the card reader will be random. Access one of the RF S IM cards for trading.
  • the radio frequency SIM card is first dealt, but at this time the user will not be able to discriminate which radio SIM card is being traded.
  • the existing low frequency magnetic communication card reader transmits the feature information to the radio frequency SIM card through the low frequency channel, and the unique binding of the radio frequency SIM card and the card reader is realized by the feature information.
  • the data transmission rate cannot be very high, so it cannot Too many low frequency reader feature identification information is transmitted thereon.
  • the characteristics of low frequency card search may be duplicated.
  • the feature information is repeated, if the radio frequency SIM card with low frequency magnetic communication is activated on a card reader, its radio frequency channel may communicate with another adjacent card reader that transmits the same low frequency feature information.
  • the technical problem to be solved by the present invention is to provide a radio frequency S IM card conflict detection method with low frequency magnetic communication, which can improve the security and reliability of radio frequency SIM card transactions on the basis of ensuring user convenience.
  • the present invention provides a radio frequency SIM card collision detection method with low frequency magnetic communication, which is applied to a short-range communication system including a card reader and a plurality of radio frequency SIM cards, the method comprising the following steps :
  • Step a the card reader sends low frequency card search feature information
  • Step b The radio frequency SIM card A determines whether the low frequency magnetic induction signal strength reaches a preset threshold value, and if so, receives the low frequency card finding feature information, and sends the card search response information through the radio frequency channel; step c, the card reader receiving station Describe the card response information and establish a radio connection with the radio frequency SIM card A Connect, open the set time window;
  • Step d when the set time window is closed, the card reader interrupts the transaction process with the radio frequency SIM card A, and transmits the low frequency card search feature information again;
  • Step e If the card reader receives the card search response message sent by another radio frequency SIM card B, there is a radio frequency SIM card conflict.
  • the above method may further have the following feature.
  • the radio frequency SIM card A does not establish a radio frequency connection with the card reader.
  • the above method may further have the following feature.
  • the card reader does not receive the card-seeking response information sent by another radio frequency SIM card B, the card reader continues the transaction with the radio frequency SIM card A. Until the transaction is completed.
  • the foregoing method may further have the following features.
  • the method further includes: Step f: The card reader disconnects from the radio frequency SIM card A and the radio frequency SIM card B.
  • the foregoing method may further have the following feature: the low frequency card search feature information is randomly generated at each card reader end, remains unchanged during a card search process, and is different from each other in different card search processes. Information.
  • the present invention also provides a radio frequency SIM card collision detecting method with low frequency magnetic communication, which is applied to a short-range communication system including at least two card readers and a plurality of radio frequency SIM cards, and the method includes the following steps.
  • Step b the card reader receives the card search response information sent by the radio frequency SIM card A through the radio frequency channel, the card search response information carries the identification code IDA of the radio frequency SIM card A and the random number RN;
  • Step c the card reader performs MAC operation on the card-searching feature information, the ID code IDA and the random number RN, and obtains MAC information that uniquely confirms a pair of card readers and a radio frequency SIM card, and sends the MAC information through the low-frequency channel;
  • Step d if the radio frequency SIM card A receives the MAC information, the MAC information and the radio frequency SIM The results of the card A's own MAC operation are compared, and if they do not match, a collision is detected.
  • the foregoing method may further have the following features.
  • the result of the MAC address calculation of the radio frequency SIM card A is that the radio frequency SIM card A generates the low frequency card search feature information, its own identification code IDA, and itself.
  • the random number RN performs the MAC operation.
  • the foregoing method may further have the following feature.
  • the step d if the MAC information received by the radio frequency SIM card A is consistent with the result of the self MAC operation, the transaction between the card reader and the radio frequency SIM card A is legal, and the card is read. The transaction continues with the RF SIM card A until the transaction is completed.
  • the foregoing method may further have the following features.
  • the method further includes: Step e: The card reader disconnects from the radio frequency SIM card A.
  • the foregoing method may further have the following features.
  • the random number RN is information generated by the radio frequency SIM card and remains unchanged during a card search process, and is different from each other in different card searching processes. .
  • the radio frequency SIM card conflict detection method with low frequency magnetic communication provided by the invention can improve the security and reliability of the radio frequency SIM card transaction on the basis of ensuring the user's convenience.
  • FIG. 1 is a structural block diagram of a card reader in the present invention
  • FIG. 2 is a structural block diagram of a radio frequency SIM card in the present invention.
  • FIG. 3 is a schematic diagram showing a typical situation of radio frequency SIM card conflicts in the first embodiment of the present invention
  • FIG. 4 is a schematic diagram showing a typical situation of radio frequency SIM card conflicts in the second embodiment of the present invention
  • FIG. 6 is a flowchart of a radio frequency SIM card collision detecting method with low frequency magnetic communication according to a second embodiment of the present invention. detailed description
  • the main idea of the present invention is to detect the existence of a radio frequency SIM card conflict by transmitting the low frequency card search feature information twice or more times within a certain time, so as to be able to perform corresponding application processing when the conflict occurs, for example, prohibiting the conflict.
  • Transaction of one or more radio frequency SIM cards to ensure the security and reliability of RF SIM card transactions. And because this process does not require manual participation, it does not sacrifice the convenience of RF SIM card applications.
  • FIG. 1 is a structural block diagram of the card reader in the present invention.
  • the card reader 100 capable of performing short-range communication with a radio frequency SIM card includes at least one microcontroller 103, at least one radio frequency transceiver module 102, and at least one radio frequency antenna 101, at least one.
  • the low frequency signal generating device 104 is configured to process the information transmitted and received by the radio frequency transceiver module 102 and generate low frequency data information.
  • the RF transceiver module 102 is coupled to the microcontroller 103 and the RF antenna 101 for transmitting and receiving RF signals.
  • the radio frequency antenna 101 detects and radiates radio frequency signals.
  • the low frequency signal generating device 104 is connected to the microcontroller 103 to transmit low frequency data information generated by the microcontroller 103.
  • the radio frequency SIM card involved in the present invention is a radio frequency SIM card with low frequency magnetic communication.
  • 2 is a structural block diagram of a radio frequency SIM card in the present invention.
  • the radio frequency SIM card 200 includes at least one radio frequency transceiver module 202, at least one radio frequency antenna 201, at least one microcontroller 203, at least one low frequency magnetic induction and information receiving module 205, and a SIM card module 204.
  • the radio frequency transceiver module 202 is respectively connected to the radio frequency antenna 201 and the micro controller 203 for transmitting and receiving radio frequency signals.
  • the microcontroller 203 is configured to process the transmitted and received radio frequency information and the received low frequency magnetic induction information.
  • the radio frequency antenna 201 is used to detect and radiate radio frequency signals.
  • the SIM card module 204 processes the SIM card application of the mobile communication terminal.
  • the low frequency magnetic induction and information receiving module 205 is configured to inductively receive and detect the low frequency magnetic field strength transmitted by the card reader low frequency signal generating device 104 to confirm whether it is within the set transaction distance and receive the low frequency magnetic communication information.
  • FIG. 3 is a schematic diagram showing a typical situation of a radio frequency SIM card conflict in the first embodiment of the present invention.
  • the two radio frequency SIM card radio frequency IM card 301 and radio frequency SIM card 302 simultaneously enter the transaction range 304 of the card reader 303.
  • the radio frequency SIM card 301 and the radio frequency SIM card 302 turn on the radio frequency receiving function.
  • the card reader 303 first finds the radio frequency SIM card 301 through the low frequency card search feature information, and sets an open time window to start the transaction process with the radio frequency SIM card 301. When the time window is closed, the card reader 303 interrupts the current transaction flow with the radio frequency SIM card 301 and retransmits the low frequency card finding feature information. If the card reader 303 finds another RF SIM card 302 at this time, it is determined that there is a radio frequency SIM card conflict.
  • the card reader 303 disconnects the radio frequency SIM card 301 and the radio frequency SIM card 302, respectively, and restarts the card search.
  • FIG. 5 is a flow chart showing a radio frequency SIM card collision detecting method with low frequency magnetic communication in the first embodiment of the present invention.
  • the radio frequency SIM card collision detection process with low frequency magnetic communication includes the following steps:
  • Step 501 The card reader sends low frequency card search feature information.
  • Step 502 the radio frequency SIM card A and the radio frequency SIM card B sense the low frequency magnetic field signal, and detect the intensity of the low frequency magnetic field, to determine whether it has entered the card reader's swipe range, then step 503 is performed, otherwise repeat this step 502;
  • radio frequency SIM card By comparing the intensity of the sensed low frequency magnetic field with a preset threshold value, it is a common practice for a radio frequency SIM card to determine whether or not to enter the card reader's swipe range. Of course, in other embodiments of the present invention, other methods may be employed to determine whether the radio frequency SIM card has entered the card reader's swipe range.
  • Step 503 The radio frequency SIM card A and the radio frequency SIM card B receive the card-searching feature information carried in the low-frequency magnetic field;
  • Step 504 The radio frequency SIM card A and the radio frequency SIM card B send the card search response information.
  • Step 506 the card reader opens a set time window
  • Step 507 the card reader and the radio frequency SIM card A enter the transaction process, step 510;
  • Step 510 the time window is interrupted
  • Step 511 the time window is closed
  • the time window may be a short time, or even 0, that is, after the card reader receives the card search response information of the radio frequency SIM card, the low frequency card search feature information is immediately transmitted.
  • Step 512 the card reader maintains a connection with the radio frequency SIM card A;
  • Step 513 the card reader sends the low frequency card search feature information again;
  • Step 514 the card reader determines whether the card search response information of the radio frequency SIM card B is received, and if yes, step 515 is performed; otherwise, step 507 is performed until the transaction is completed to perform step 508;
  • Step 515 the card reader disconnects from the radio frequency SIM card B, step 509;
  • Step 508 the transaction is completed
  • Step 509 the card reader disconnects from the radio frequency SIM card A, and exits.
  • step 514, step 515, and step 509 are sequentially performed to indicate that the card reader receives the card search response information of the radio frequency SIM card B, and disconnects the radio frequency SIM card A and the radio frequency SIM card B, respectively.
  • step 514, step 507, step 508, and step 509 are sequentially performed to indicate that the card reader does not receive the card search response information of the radio frequency SIM card B within the set time window, and after the radio frequency SIM card A completes the transaction normally. drop out.
  • the low frequency card finding feature information is randomly generated by each card reader end, and remains unchanged in a card search process, and is different from each other in different card searching processes.
  • the scenario is that there are two radio frequency SIM cards in the transaction range of the card reader.
  • the card according to the method of the present invention, can detect the conflict of the radio frequency SIM card. After detecting the conflict of the radio frequency SIM card, the card reader can avoid the transaction by disconnecting the connection. The occurrence of a wrong transaction.
  • the radio frequency SIM card collision detection method with low frequency magnetic communication provided by the present invention does not need to sacrifice the convenience of the user, and can improve the security and reliability of the radio frequency SIM card transaction.
  • FIG. 4 is a schematic diagram showing a typical situation of a radio frequency SIM card conflict in the second embodiment of the present invention.
  • the two radio frequency SIM card radio frequency SIM card 401 and radio frequency SIM card 402 enter the transaction range 405 and the transaction range 406 of the card reader 403 and the card reader 404, respectively (the radio frequency SIM card 401 enters the reading).
  • the radio frequency SIM card 402 enters the transaction range 406 of the card reader 404).
  • the radio frequency SIM card 401 and the radio frequency SIM card 402 receive the same low frequency card finding feature information transmitted by the card reader 403 and the card reader 404, respectively.
  • the radio frequency SIM card 401 and the radio frequency SIM card 402 calculate the MAC information by using the received low frequency card search feature information and its unique identification code ID information and the random number RN generated by the radio frequency SIM card. Then, the radio frequency SIM card 401 and the radio frequency SIM card 402 respectively send the card search response information including the unique ID and the random number RN to the card reader 403 and the card reader 404 through the radio frequency channel. After receiving the card search response information, the card reader 403 and the card reader 404 respectively transmit the card search feature information and the corresponding received radio frequency SIM card identification code to the radio frequency SIM card 401 and the radio frequency SIM card 402 through the low frequency channel. The ID and the random number RN information are used to calculate the MAC information.
  • the radio frequency SIM card 401 and the radio frequency SIM card 402 respectively receive the MAC information sent by the card reader 403 and the card reader 404 through the low frequency, and then compare with the MAC information calculated by themselves, and if they do not match, the conflict is detected. If the information is consistent, the card reader 403 and the card reader 404 continue the transactions with the radio frequency SIM card 401 and the radio frequency SIM card 402, respectively.
  • FIG. 6 is a flow chart showing a radio frequency SIM card collision detecting method with low frequency magnetic communication in a second embodiment of the present invention.
  • the radio frequency SIM card collision detection process with low frequency magnetic communication includes the following steps:
  • Step 601 the card reader A and the card reader B simultaneously send the same low frequency card search feature information;
  • Step 602 The radio frequency SIM card A and the radio frequency SIM card B enter the transaction range of the card reader A and the card reader B, respectively;
  • Step 603 The radio frequency SIM card A and the radio frequency SIM card B receive the low frequency card search feature information of the card reader A and the card reader B, respectively;
  • Step 604 The radio frequency 8 card and the radio frequency SIM card B respectively perform MAC operations on the received low frequency card search feature information and its own unique ID and the self-generated random number RN to obtain MAC information.
  • the random number RN is a radio frequency SIM card. Generated information that remains the same during a card-finding process and differs from one another during different card-finding processes.
  • Step 605 The radio frequency SIM card A and the radio SIM card B send the card search response information including the unique ID and the random number RN through the radio channel.
  • Step 606 the card reader A receives the card search response information of the radio frequency SIM card B, and the card reader B receives the card search response information of the radio frequency SIM card A;
  • Step 607 The card reader A and the card reader B perform MAC operations on the received card-recovery information of the received radio frequency SIM card and the card-searching feature information sent by the card reader to obtain MAC information.
  • Step 608 the card reader A, the card reader B sends the generated MAC information as characteristic information through low frequency transmission;
  • Step 609 the radio frequency SIM card A and the radio frequency SIM card B respectively compare the MAC information sent by the card reader A and the card reader B from the low frequency;
  • Step 610 The radio frequency 8 card and the radio frequency SIM card B respectively determine whether the received MAC information is consistent with the MAC information calculated by itself. If step 611 is performed, otherwise step 614 is performed; step 611, the radio frequency 8 card and the radio frequency SIM card B respectively Establishing a connected card reader for transaction, that is, the radio frequency SIM card A and the card reader A are engaged in transactions, and the radio frequency SIM card B is transacted with the card reader B;
  • Step 612 the transaction is completed
  • Step 613 the card reader A and the card reader B are respectively disconnected from the radio frequency SIM card and the radio frequency SIM card B. Connection;
  • Step 614 detecting a conflict
  • Step 615 the radio frequency SIM card A and the radio frequency SIM card B respectively notify the card reader B, and the card reader A detects the conflict, that is, the radio frequency SIM card A notifies the card reader B to detect the conflict, and the radio frequency SIM card B notifies the reading.
  • Card A detects a conflict
  • Step 616 the radio frequency 3 card and the radio frequency SIM card B are disconnected from the card reader B and the card reader A respectively, that is, the radio frequency SIM card A is disconnected from the card reader B, and the radio frequency SIM card B is disconnected and read. Card connector A connection.
  • the card search response information includes a unique identification code ID of each radio frequency SIM card and each radio frequency SIM card generated, which remains unchanged during a card search process, and is mutually in a different card search process. Not the same information RN.
  • the hypothetical scenario is that two card readers simultaneously transmit the same low frequency card search feature information.
  • more than two card readers can simultaneously send the same low frequency card search.
  • the feature information can detect the conflict of the radio frequency SIM card. After detecting the conflict of the radio SIM card, the card reader can avoid the occurrence of the erroneous transaction by disconnecting the connection and terminating the transaction.
  • the radio frequency SIM card collision detection method with low frequency magnetic communication provided by the present invention does not need to sacrifice the convenience of the user, and can improve the security and reliability of the radio frequency SIM card transaction.

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Description

说 明 书
一种带低频磁通信的射频 SIM卡冲突检测方法 技术领域
本发明涉及通信领域，尤其涉及一种带低频磁通信的射频 SIM卡沖突检 测方法。 背景技术
随着移动通信技术的发展， 移动通信终端作为大众化的消费产品， 已经 非常普及。 移动通信终端中的 S IM卡 ( Subscr iber Ident i ty Model , 用户 身份识别模块）， 作为移动通信终端的重要组成部分而被广泛地使用。 为满 足人们不断提高的移动通信终端使用体验， 具备多种新功能的 S IM卡被开发 并投入使用， 带低频磁通信的射频 S IM卡就是其中的一例。
带低频磁通信的射频 SIM卡是具有射频通信、低频磁通信和低频磁感应 强度检测功能的 SIM卡， 包括卡体及卡体内的集成电路。 射频 SIM卡的卡体 上设置可与移动电话匹配的 SIM卡接口，卡体内的集成电路包括中央处理器 CPU, 与该处理器电连接的 SIM卡存储器、 射频收发电路和接口电路， 以及 与射频收发电路电连接的射频收发天线。射频 SIM卡不仅能够与移动通信终 端通信以实现普通 SIM卡的功能，还能够通过射频收发电路和接口电路与配 套的外部处理装置（例如读卡器）进行近距离通信。 通信过程和内容由射频 SIM卡内的中央处理器 CPU具体处理。
带低频磁通信的射频 SIM卡多用于移动电话， 除具备常规 SIM卡的所有 功能， 还可以让移动电话具有诸如公交乘车卡、 门禁通信卡、 信用卡、 小额 支付卡、 考勤卡等智能卡的功能， 而且各种智能卡的使用过程中产生的信息 能够直接在移动电话的屏幕上显示，用户通过移动电话的键盘来完成各项操 作。
当带低频磁通信的射频 SIM卡作为公交乘车卡、 门禁通信卡、 信用卡、 小额支付卡、 考勤卡等智能卡使用时， 其工作原理是： 读卡器和射频 SIM卡 之间通过低频通道进行交易距离控制， 通过射频通道进行交易。 读卡器和射 频 SIM卡之间进行近距离通信的过程是： 读卡器发出低频信号， 射频 S IM卡 接收该低频信号并检测其强度，如果射频 SIM卡接收的低频信号的强度达到 预设的门限值， 则说明射频 SIM卡已进入到读卡器的交易范围内， 可以进行 交易， 这时射频 SIM卡的射频通信部分被激活， 射频 SIM卡通过射频通道与 读卡器进行交易，如果射频 SIM卡接收的低频信号的强度没有达到预设的门 限值， 则说明射频 SIM卡没有进入到读卡器的交易范围内， 不能进行交易， 这时射频 SIM卡的射频通信部分不被激活，射频 SIM卡不能够与读卡器建立 射频通道的连接。
为了避免误读卡操作， 射频 SIM卡需要进入读卡器一定的区域范围内， 才能开启交易的功能。 利用低频磁感应强度检测， 可以有效的将不同类型的 移动通信终端与读卡器之间的距离控制在一定区域范围内。 并且在典型的射 频 SIM卡应用中， 射频 SIM卡作为一种身份识别或小额支付的工具时， 为增 加应用的便捷性， 交易结果一般不会在移动通信终端上由用户显示确认。
在现有的带低频磁通信的射频 S IM卡近距离通信系统中，如果在交易范 围 （本文中也称为刷卡范围） 内， 同时存在 2个或多个射频 SIM卡， 读卡器 将随机接入其中的一个射频 S IM卡进行交易。 这样我们发现， 当存在 2个或 多个射频 SIM卡同时在这个区域范围时，将有一个其中射频 SIM卡首先被交 易， 但此时用户将无法判别哪个射频 SIM卡被交易了。
另外一种情况，现有的低频磁通信读卡器是通过在低频通道发送特征信 息给射频 SIM卡， 并通过该特征信息来实现射频 SIM卡与读卡器的唯一绑定 的。 但由于低频通道物理特性决定了其数据传输速率不可能很高， 因此不能 在其上面传送太多的低频读卡器特征识别信息。 当同一场景范围内 （例如地 铁闸机口， 超市付账出口）， 存在多个带低频磁通信的读卡器时， 其低频寻 卡的特征信息就有可能出现重复。 在特征信息重复时， 如果带低频磁通信的 射频 SIM卡在一个读卡器上被激活后， 其射频通道可能与另一相邻的发送相 同低频特征信息的读卡器进行通信。
上面两种情况都是由于多个读卡器和多个射频 S IM卡同时存在而导致的 不确定的交易过程， 我们将这种不确定的交易定义为射频 SIM卡沖突， 而把 可能出现这种不确定交易的区域定义为射频 SIM卡交易沖突区域。 沖突的产 生给射频 SIM卡交易的安全性和可靠性带来了一定的隐患。
上述问题的一种解决方法是，在交易时将交易信息在移动通信终端上显 示， 由用户确认， 但这是以牺牲便捷性为代价的。 因此， 如何在不牺牲便捷 性的基础上避免射频 SIM卡交易的安全性和可靠性上的隐患成为亟待解决的 问题。 发明内容
本发明所要解决的技术问题是提供一种带低频磁通信的射频 S IM卡沖突 检测方法， 能够在保证用户使用便捷性的基础上提高射频 SIM卡交易的安全 性和可靠性。
为解决上述技术问题，本发明提出了一种带低频磁通信的射频 S IM卡沖 突检测方法， 应用于包括一个读卡器和多个射频 SIM卡的近距离通信系统， 所述方法包括以下步骤：
步骤 a , 读卡器发送低频寻卡特征信息；
步骤 b,射频 SIM卡 A判断低频磁感应信号强度是否达到预设的门限值， 若是则接收所述低频寻卡特征信息， 并通过射频通道发送寻卡响应信息； 步骤 c , 读卡器接收所述寻卡响应信息， 并与射频 SIM卡 A建立射频连 接， 打开设定时间窗；
步骤 d, 在所述设定时间窗关闭时， 读卡器中断与射频 SIM卡 A的交易 过程， 并再次发送低频寻卡特征信息；
步骤 e, 若读卡器接收到另外一张射频 S IM卡 B发送的寻卡响应信息， 则存在射频 S IM卡沖突。
进一步地， 上述方法还可具有以下特点， 所述步骤 b中， 若低频磁感应 信号强度未达到预设的门限值， 则射频 SIM卡 A不与读卡器建立射频连接。
进一步地， 上述方法还可具有以下特点， 所述步骤 e中， 若读卡器未接 收到另外一张射频 SIM卡 B发送的寻卡响应信息， 则读卡器继续与射频 SIM 卡 A的交易直至交易完成。
进一步地， 上述方法还可具有以下特点， 所述步骤 e之后还包括： 步骤 f , 读卡器断开与射频 SIM卡 A和射频 SIM卡 B的连接。
进一步地， 上述方法还可具有以下特点， 所述低频寻卡特征信息是每个 读卡器端随机产生的， 在一次寻卡过程中保持不变的、 在不同的寻卡过程中 互不相同的信息。
为解决上述技术问题， 本发明还提出了带低频磁通信的射频 SIM卡沖突 检测方法，应用于包括至少两个读卡器和多个射频 S I M卡的近距离通信系统， 所述方法包括以下步骤： 步骤 b, 读卡器收到射频 SIM卡 A通过射频通道发送的寻卡响应信息， 所述寻卡响应信息中携带射频 SIM卡 A的识别码 IDA和随机数 RN;
步骤 c , 读卡器对寻卡特征信息、 身份识别码 IDA和随机数 RN进行 MAC 运算， 得到唯一确认一对读卡器和射频 SIM卡的 MAC信息， 并通过低频通道 发送该 MAC信息；
步骤 d,若射频 SIM卡 A接收到所述 MAC信息，将该 MAC信息与射频 SIM 卡 A自身 MAC运算的结果进行比较， 若不一致则检测到沖突。
进一步地， 上述方法还可具有以下特点， 所述步骤 d中， 射频 SIM卡 A 自身 MAC运算的结果为射频 S IM卡 A对接收到的低频寻卡特征信息、 自身的 识别码 IDA和自身产生的随机数 RN进行 MAC运算得到的结果。
进一步地， 上述方法还可具有以下特点， 所述步骤 d中， 若射频 SIM卡 A接收到的 MAC信息与自身 MAC运算的结果一致， 则读卡器与射频 SIM卡 A 的交易合法， 读卡器与射频 SIM卡 A继续交易直至交易完成。
进一步地， 上述方法还可具有以下特点， 所述步骤 d之后还包括： 步骤 e, 读卡器断开与射频 SIM卡 A的连接。
进一步地， 上述方法还可具有以下特点， 所述步骤 b中， 随机数 RN是 射频 SIM卡产生的、 在一次寻卡过程中保持不变的、 在不同的寻卡过程中互 不相同的信息。
本发明提供的带低频磁通信的射频 SIM卡沖突检测方法， 能够在保证用 户使用便捷性的基础上提高射频 SIM卡交易的安全性和可靠性。 附图说明
图 1为本发明中读卡器的结构框图；
图 2为本发明中射频 S IM卡的结构框图；
图 3是本发明第一实施例中射频 S IM卡沖突的典型情况示意图； 图 4是本发明第二实施例中射频 S I M卡沖突的典型情况示意图； 图 5为本发明第一实施例中带低频磁通信的射频 SIM卡沖突检测方法流 程图；
图 6为本发明第二实施例中带低频磁通信的射频 SIM卡沖突检测方法流 程图。 具体实施方式
本发明的主要构思是： 通过在一定的时间内二次或多次发送低频寻卡特 征信息来检测射频 SIM卡沖突的存在， 以便能够在沖突产生时做相应的应用 处理， 例如禁止沖突的两个或多个射频 SIM卡进行交易， 从而保证射频 SIM 卡交易的安全性和可靠性。 并且由于此过程不需要人工参与， 不会牺牲射频 SIM卡应用的便捷性。
首先对本发明方法中涉及的射频 SIM卡和读卡器的结构作一介绍： 图 1为本发明中读卡器的结构框图。 如图 1所示， 本发明中所涉及的能 够与射频 S IM卡进行近距离通信的读卡器 100包含至少一个微控制器 103 , 至少一个射频收发模块 102 , 至少一个射频天线 101 , 至少一组低频信号发 生装置 104 , 其中， 控制器 103处理射频收发模块 102收发的信息， 并产 生低频数据信息。 射频收发模块 102与微控制器 103和射频天线 101连接， 用于发射和接收射频信号。 射频天线 101检测和辐射射频信号。 低频信号发 生装置 104与微控制器 103连接， 发送微控制器 103产生的低频数据信息。
本发明中所涉及的射频 SIM卡为带低频磁通信的射频 SIM卡。 图 2为本 发明中射频 SIM卡的结构框图。 如图 2所示， 该射频 SIM卡 200包括至少一 个射频收发模块 202、 至少一个射频天线 201、 至少一个微控制器 203 , 至少 一个低频磁感应和信息接收模块 205 , 以及一个 SIM卡模块 204。 其中， 射 频收发模块 202分别与射频天线 201和微控制器 203连接，用于发射和接收 射频信号。微控制器 203用于对收发的射频信息和接收的低频磁感应信息进 行处理。 射频天线 201用于检测和辐射射频信号。 SIM卡模块 204处理移动 通信终端的 SIM卡应用。低频磁感应和信息接收模块 205用于感应接收并检 测读卡器低频信号发生装置 104发送的低频磁场强度， 以确认是否在设定的 交易距离内，并接收低频磁通信信息。
以下结合附图和实施例对本发明的原理和特征进行描述， 所举实例只用 于解释本发明， 并非用于限定本发明的范围。
第一实施例
图 3是本发明第一实施例中射频 SIM卡沖突的典型情况示意图。 如图 3 所示， 两个射频 SIM卡射频 S IM卡 301和射频 SIM卡 302同时进入距离读卡 器 303的交易范围 304内。射频 SIM卡 301和射频 SIM卡 302打开射频接收 功能。 读卡器 303首先通过低频寻卡特征信息寻到射频 SIM卡 301 , 并设定 打开时间窗， 开始与射频 S IM卡 301的交易流程。 当时间窗关闭时， 读卡器 303中断当前与射频 SIM卡 301的交易流程， 转而重新发送低频寻卡特征信 息。 如果此时读卡器 303寻到另一张射频 SIM卡 302 , 则判断存在射频 S IM 卡沖突。 读卡器 303分别断开与射频 S IM卡 301和射频 SIM卡 302的连接， 重新开始寻卡。
图 5为本发明第一实施例中带低频磁通信的射频 SIM卡沖突检测方法流 程图。 如图 5所示， 本实施例中， 带低频磁通信的射频 SIM卡沖突检测过程 包括如下步骤：
步骤 501， 读卡器发送低频寻卡特征信息；
步骤 502， 射频 SIM卡 A和射频 SIM卡 B感应低频磁场信号， 并检测低 频磁场的强度， 判断是否已进入读卡器的刷卡范围内， 是则执行步骤 503 , 否则重复本步骤 502;
通过将感应到低频磁场的强度与预设的门限值进行比较，从而判断是否 进入读卡器的刷卡范围是射频 SIM卡通常采取的一种手段。 当然， 在本发明 的其他实施例中， 判断射频 SIM卡是否已进入读卡器的刷卡范围内也可以采 用其他的方法。
步骤 503 , 射频 SIM卡 A和射频 SIM卡 B接收低频磁场中携带的寻卡特 征信息；
步骤 504 , 射频 S IM卡 A和射频 SIM卡 B发送寻卡响应信息； 步骤 505 , 读卡器接收到射频 SIM卡 A的寻卡响应信息；
步骤 506 , 读卡器打开设定时间窗；
步骤 507 , 读卡器和射频 SIM卡 A进入交易流程， 执行步骤 510;
步骤 510 , 时间窗计时中断；
步骤 511 , 时间窗关闭；
其中， 时间窗可以是 ^艮短的时间， 甚至为 0 , 即在读卡器收到射频 S IM 卡的寻卡响应信息后， 立即发送低频寻卡特征信息。
步骤 512 , 读卡器维持与射频 SIM卡 A的连接；
步骤 513 , 读卡器再次发送低频寻卡特征信息；
步骤 514 , 读卡器判断是否收到射频 SIM卡 B的寻卡响应信息， 若是则 执行步骤 515 , 否则执行步骤 507直至交易完成执行步骤 508 ;
步骤 515 , 读卡器断开与射频 SIM卡 B的连接， 执行步骤 509;
步骤 508 , 交易完成；
步骤 509 , 读卡器断开与射频 SIM卡 A的连接， 退出。
图 5中， 依次执行步骤 514、 步骤 515和步骤 509表示读卡器收到射频 SIM卡 B的寻卡响应信息，分别断开与射频 SIM卡 A和射频 S IM卡 B的连接。
图 5中， 依次执行步骤 514、 步骤 507、 步骤 508和步骤 509表示读卡 器在设定时间窗内没有收到射频 SIM卡 B的寻卡响应信息， 而在射频 SIM卡 A正常完成交易后退出。
本实施例中， 低频寻卡特征信息是每个读卡器端随机产生的， 在一次寻 卡过程中保持不变的、 在不同的寻卡过程中互不相同的信息。
本实施例中， 殳的场景是在读卡器的交易范围内同时有 2个射频 SIM 卡， 在本发明的其他实施例中， 在读卡器的交易范围内也可以同时有 2个以 上的射频 SIM卡， 根据本发明的方法， 都可以检测到射频 SIM卡的沖突。 检 测到射频 SIM卡的沖突后，读卡器就可以通过断开连接终止交易的方式避免 错误交易的发生。
由本实施例可见，本发明提供的带低频磁通信的射频 SIM卡沖突检测方 法， 既不需要牺牲用户的使用便捷性， 又可以提高射频 SIM卡交易的安全性 和可靠性。
第二实施例
图 4是本发明第二实施例中射频 SIM卡沖突的典型情况示意图。 如图 4 所示， 两个射频 SIM卡射频 S IM卡 401和射频 SIM卡 402分别同时进入读卡 器 403和读卡器 404的交易范围 405和交易范围 406内（射频 S IM卡 401进 入读卡器 403的交易范围 405内，射频 S IM卡 402进入读卡器 404的交易范 围 406内）。 射频 SIM卡 401和射频 SIM卡 402分别接收读卡器 403和读卡 器 404发送的内容相同的低频寻卡特征信息。然后射频 SIM卡 401、射频 SIM 卡 402用接收到的低频寻卡特征信息与自身唯一的识别码 ID信息和射频 SIM 卡产生的随机数 RN进行运算得到 MAC信息。 接着射频 S IM卡 401、 射频 SIM 卡 402分别通过射频通道向读卡器 403和读卡器 404发送包含自身唯一 ID 和随机数 RN的寻卡响应信息。 读卡器 403和读卡器 404接收到寻卡响应信 息后，分别通过低频通道向射频 SIM卡 401和射频 SIM卡 402发送由自身的 寻卡特征信息和对应接收到的射频 SIM卡的识别码 ID以及随机数 RN信息计 算得到 MAC信息。 射频 SIM卡 401和射频 SIM卡 402分别接收到读卡器 403 和读卡器 404通过低频发送的 MAC信息后， 与自己算的 MAC信息进行比较， 如果不一致则表示检测到沖突。 如果信息一致， 则读卡器 403和读卡器 404 分别继续与射频 SIM卡 401和射频 S IM卡 402的交易。
图 6为本发明第二实施例中带低频磁通信的射频 SIM卡沖突检测方法流 程图。 如图 6所示， 本实施例中， 带低频磁通信的射频 SIM卡沖突检测过程 包括如下步骤：
步骤 601 , 读卡器 A和读卡器 B同时发送相同的低频寻卡特征信息； 步骤 602 , 射频 SIM卡 A和射频 SIM卡 B分别进入读卡器 A和读卡器 B 的交易范围内；
步骤 603 , 射频 SIM卡 A和射频 SIM卡 B分别接收读卡器 A和读卡器 B 的低频寻卡特征信息；
步骤 604 , 射频 8 卡 、 射频 SIM卡 B分别对接收到的低频寻卡特征 信息与自身的唯一 ID和自己产生的随机数 RN进行 MAC运算，得到 MAC信息； 其中， 随机数 RN是射频 SIM卡产生的、 在一次寻卡过程中保持不变的、 在不同的寻卡过程中互不相同的信息。
步骤 605 , 射频 SIM卡卡 A、 射频 SIM卡卡 B通过射频通道发送包含自 身唯一 ID和随机数 RN的寻卡响应信息；
步骤 606 , 读卡器 A收到射频 SIM卡 B的寻卡响应信息， 读卡器 B收到 射频 S IM卡 A的寻卡响应信息；
步骤 607 , 读卡器 A、 读卡器 B分别对收到的射频 SIM卡的寻卡响应信 息与自身发送的寻卡特征信息进行 MAC运算， 得到 MAC信息；
步骤 608 , 读卡器 A、 读卡器 B将生成的 MAC信息做为特征信息通过低 频发送；
步骤 609 , 射频 SIM卡 A、 射频 SIM卡 B分别比较读卡器 A和读卡器 B 从低频发送来的 MAC信息；
步骤 610 , 射频 8 卡 、 射频 SIM卡 B分别判断接收到的 MAC信息是 否与自身计算的 MAC信息一致， 若是执行步骤 611 , 否则执行步骤 614; 步骤 611 , 射频 8 卡 、 射频 SIM卡 B分别与建立连接的读卡器进行 交易， 即射频 SIM卡 A与读卡器 A进行交易， 射频 S IM卡 B与读卡器 B进行 交易；
步骤 612 , 交易完成；
步骤 613 , 读卡器 A、 读卡器 B分别断开与射频 SIM卡 、 射频 SIM卡 B 的连接；
步骤 614 , 检测到沖突；
步骤 615 , 射频 SIM卡 A、 射频 S IM卡 B分别通知读卡器 B、 读卡器 A 检测到沖突， 即射频 S IM卡 A通知读卡器 B检测到沖突， 射频 S IM卡 B通知 读卡器 A检测到沖突；
步骤 616 , 射频 3 卡 、 射频 SIM卡 B分别断开与读卡器 B、 读卡器 A 的连接， 即射频 SIM卡 A断开与读卡器 B的连接， 射频 SIM卡 B断开与读卡 器 A的连接。
本实施例中， 寻卡响应信息包含每个射频 S IM卡的唯一身份识别码 ID 和每个射频 SIM卡产生的、 在一次寻卡过程中保持不变的、 在不同的寻卡过 程中互不相同的信息 RN。
本实施例中，假设的场景是 2个读卡器同时发送相同的低频寻卡特征信 息， 在本发明的其他实施例中， 也可以同时有 2个以上的读卡器发送相同的 低频寻卡特征信息， 根据本发明的方法， 都可以检测到射频 SIM卡的沖突。 检测到射频 SIM卡的沖突后，读卡器就可以通过断开连接终止交易的方式避 免错误交易的发生。
由本实施例可见，本发明提供的带低频磁通信的射频 SIM卡沖突检测方 法， 既不需要牺牲用户的使用便捷性， 又可以提高射频 SIM卡交易的安全性 和可靠性。
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明 的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发 明的保护范围之内。

Claims

权 利 要 求 书
1. 一种带低频磁通信的射频 SIM卡沖突检测方法， 其特征在于， 应用于 包括一个读卡器和多个射频 S IM卡的近距离通信系统，所述方法包括以下步骤： 步骤 a , 读卡器发送低频寻卡特征信息；
步骤 b,射频 SIM卡 A判断低频磁感应信号强度是否达到预设的门限值， 若是则接收所述低频寻卡特征信息， 并通过射频通道发送寻卡响应信息； 步骤 c , 读卡器接收所述寻卡响应信息， 并与射频 SIM卡 A建立射频连 接， 打开设定时间窗；
步骤 d, 在所述设定时间窗关闭时， 读卡器中断与射频 SIM卡 A的交易 过程， 并再次发送低频寻卡特征信息；
步骤 e, 若读卡器接收到另外一张射频 SIM卡 B发送的寻卡响应信息， 则存在射频 S IM卡沖突。
2. 根据权利要求 1所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述步骤 b中， 若低频磁感应信号强度未达到预设的门限值， 则射频 SIM卡 A不与读卡器建立射频连接。
3. 根据权利要求 1所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述步骤 e中， 若读卡器未接收到另外一张射频 S IM卡 B发送 的寻卡响应信息， 则读卡器继续与射频 SIM卡 A的交易直至交易完成。
4. 根据权利要求 1所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述步骤 e之后还包括：
步骤 f , 读卡器断开与射频 SIM卡 A和射频 SIM卡 B的连接。
5. 根据权利要求 1所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述低频寻卡特征信息是每个读卡器端随机产生的， 在一次寻 卡过程中保持不变的、 在不同的寻卡过程中互不相同的信息。
6. 一种带低频磁通信的射频 SIM卡沖突检测方法， 其特征在于， 应用 于包括至少两个读卡器和多个射频 S IM卡的近距离通信系统， 所述方法包括 以下步骤： 步骤 b, 读卡器收到射频 SIM卡 A通过射频通道发送的寻卡响应信息， 所述寻卡响应信息中携带射频 SIM卡 A的识别码 IDA和随机数 RN;
步骤 c , 读卡器对寻卡特征信息、 身份识别码 IDA和随机数 RN进行 MAC 运算， 得到唯一确认一对读卡器和射频 SIM卡的 MAC信息， 并通过低频通道 发送该 MAC信息；
步骤 d,若射频 SIM卡 A接收到所述 MAC信息，将该 MAC信息与射频 SIM 卡 A自身 MAC运算的结果进行比较， 若不一致则检测到沖突。
7. 根据权利要求 6所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述步骤 d中， 射频 SIM卡 A自身 MAC运算的结果为射频 SIM 卡 A对接收到的低频寻卡特征信息、 自身的识别码 IDA和自身产生的随机数 RN进行 MAC运算得到的结果。
8. 根据权利要求 6所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述步骤 d中， 若射频 SIM卡 A接收到的 MAC信息与自身 MAC 运算的结果一致， 则读卡器与射频 SIM卡 A的交易合法， 读卡器与射频 SIM 卡 A继续交易直至交易完成。
9. 根据权利要求 6所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述步骤 d之后还包括：
步骤 e, 读卡器断开与射频 SIM卡 A的连接。
10. 根据权利要求 6所述的带低频磁通信的射频 SIM卡沖突检测的方法， 其特征在于， 所述步骤 b中， 随机数 RN是射频 SIM卡产生的、 在一次寻卡 过程中保持不变的、 在不同的寻卡过程中互不相同的信息。
PCT/CN2010/071819 2010-04-02 2010-04-16 一种带低频磁通信的射频sim卡冲突检测方法 WO2011120241A1 (zh)

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013060172A1 (zh) * 2011-10-24 2013-05-02 国民技术股份有限公司 发起终端、响应终端、通信系统及方法
CN103067050B (zh) * 2011-10-24 2015-09-16 国民技术股份有限公司 一种通信系统及方法
CN103187984B (zh) * 2011-12-29 2016-09-14 国民技术股份有限公司 一种移动终端、移动终端系统及移动终端信号传输方法
CN103077409B (zh) * 2011-10-25 2016-05-11 国民技术股份有限公司 数据交换系统及数据交换方法、存储设备
CN104022803B (zh) * 2013-02-28 2017-08-25 原相科技股份有限公司 通信协议系统及其自动更新数据的方法
CN103440468B (zh) * 2013-08-30 2016-08-10 东信和平科技股份有限公司 一种射频读卡器、射频模块及射频通信方法
CN104637340A (zh) * 2013-11-15 2015-05-20 国民技术股份有限公司 车辆监控装置及管理系统、车载装置和车辆管理方法
CN105809078B (zh) * 2014-12-31 2023-03-24 国民技术股份有限公司 一种由双频读卡器执行的异频卡间防重复支付交易的方法及双频读卡器
CN106228095B (zh) * 2016-07-19 2019-03-29 天津市炳华节能技术有限公司 一种射频卡自动寻卡的实现方法
CN108288008B (zh) * 2018-02-08 2021-12-28 飞天诚信科技股份有限公司 一种卡片激活的方法及装置
CN115442780A (zh) * 2021-06-04 2022-12-06 华为技术有限公司 一种基于nfc的数据交互方法及设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060144943A1 (en) * 2005-01-03 2006-07-06 Samsung Electronics Co., Ltd. Anti-collision coupling for contactless cards
CN101023434A (zh) * 2004-07-15 2007-08-22 万事达卡国际股份有限公司 非接触式卡支付系统的冲突检测和避免方案
CN101330303A (zh) * 2008-05-19 2008-12-24 深圳市中兴集成电路设计有限责任公司 通过短信息自动调整射频sim卡有效通信距离的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6995655B2 (en) * 2002-10-02 2006-02-07 Battelle Memorial Institute Method of simultaneously reading multiple radio frequency tags, RF tags, and RF reader
US20090267747A1 (en) * 2003-03-31 2009-10-29 Rivest Ronald L Security and Data Collision Systems and Related Techniques for Use With Radio Frequency Identification Systems
CN1609892A (zh) * 2004-11-16 2005-04-27 李作雪 Mifare desfire IC卡的应用方法
US7257374B1 (en) * 2004-12-10 2007-08-14 Cingular Wireless Ii, Llc Automatic security locking method and system for wireless-enabled devices
US7624918B2 (en) * 2005-02-04 2009-12-01 Philip Morris Usa Inc. Wireless identification based display
US7274284B2 (en) * 2005-02-04 2007-09-25 Atmel Corporation Method for RF card detection in a contactless system
US7741965B2 (en) * 2005-05-19 2010-06-22 Chung Nam Electronics Co., Ltd. Radio frequency identification (RFID) system
JP4817768B2 (ja) * 2005-09-07 2011-11-16 富士通株式会社 情報アクセス・システムおよびアクティブ型非接触情報記憶装置
US7924141B2 (en) * 2006-12-01 2011-04-12 Round Rock Research, Llc RFID communication systems and methods, and RFID readers and systems
US8905312B2 (en) * 2007-11-21 2014-12-09 Infineon Technologies Ag Identification of contactless cards

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101023434A (zh) * 2004-07-15 2007-08-22 万事达卡国际股份有限公司 非接触式卡支付系统的冲突检测和避免方案
US20060144943A1 (en) * 2005-01-03 2006-07-06 Samsung Electronics Co., Ltd. Anti-collision coupling for contactless cards
CN101330303A (zh) * 2008-05-19 2008-12-24 深圳市中兴集成电路设计有限责任公司 通过短信息自动调整射频sim卡有效通信距离的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WANG WEN-CHUANG ET AL.: "Radio frequency identification middleware data filtering algorithm based on dynamic time window", INFORMATION AND LECTRONIC ENGINEERING, vol. 7, no. 3, June 2009 (2009-06-01), pages 178 - 179, XP008171052 *

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