WO2011044740A1 - 移动支付的实现方法及移动支付系统 - Google Patents

移动支付的实现方法及移动支付系统 Download PDF

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Publication number
WO2011044740A1
WO2011044740A1 PCT/CN2009/075441 CN2009075441W WO2011044740A1 WO 2011044740 A1 WO2011044740 A1 WO 2011044740A1 CN 2009075441 W CN2009075441 W CN 2009075441W WO 2011044740 A1 WO2011044740 A1 WO 2011044740A1
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WIPO (PCT)
Prior art keywords
frequency
card
dual
mobile terminal
sim card
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PCT/CN2009/075441
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English (en)
French (fr)
Inventor
罗魏熙
孙迎彤
Original Assignee
国民技术股份有限公司
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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
Publication of WO2011044740A1 publication Critical patent/WO2011044740A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Charging, metering or billing arrangements for data wireline or wireless communications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1453Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network
    • H04L12/1464Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network using a card, such as credit card, prepay card or SIM

Definitions

  • the present invention relates to the field of electronic payment, and in particular, to a method for implementing mobile payment and a mobile payment system. Background technique
  • the use of 13. 56 MHz passive RFID (Radio Frequency Ident I ica ion) technology is very mature.
  • 13. The 56MHz passive RFID card obtains the working energy from the 13.56MHz magnetic field emitted by the card reader, and does not need to provide additional power to work, and completes the electronic payment operation.
  • bus cards that are currently in large use.
  • the form of the reader's antenna coil in this manner determines the characteristic that the magnetic field energy of 13.56 MHz decays rapidly as the distance between the card and the reader increases, that is, the near-field characteristic.
  • the near-field characteristics are: The magnetic field strength is inversely proportional to the third power of the distance. Therefore, when the passive RFID card of 13.56MHz is far away from the card reader, sufficient energy cannot be obtained from the magnetic field, so as to achieve the purpose of distance control, the general distance control requirement is that the operating distance is less than 10cm.
  • Solution 1 Attach a 13.56MHz RFID signal forwarding circuit foil card to the mobile phone.
  • the SIM card and card reader in the mobile phone cooperate with the mobile payment operation.
  • the RFID film card and the card reader use 13.56MHz communication, and the RFID film card uses the higher frequency communication with the s im card in the mobile phone, for example, using the frequency band of 2.45 GHz.
  • the already mature 13.56MHz RFID technology can already complete the payment function separately without the support of s im card, such as the commonly used bus card.
  • the RFID film card can be used to complete the payment function.
  • the s im card and the film card enable the s im card to be transferred through the RFID film card to realize the mobile payment function. If it is a metal case phone, the film card can only be attached to the outer surface of the phone case for normal use, and the film card is easily worn and damaged. Since the RFID film card and the s im card in the mobile phone use higher radio frequency communication, in order to avoid the RFID film card communicating with other mobile phones nearby, the mobile phone payment misoperation requires binding of the s im card and the RFID film card. When the user replaces the mobile phone, the original s im card is loaded into the new mobile phone, and the RFID film card needs to be torn off and attached to the new mobile phone. This operation has great reliability problems. When the user replaces the phone, or uses a new RFID film card, then an operation is required to bind the s im card to the new RFID film card.
  • Option 2 Improvements in Option 1. Attach a 13.56MHz RFID film card to the mobile phone.
  • the RFID film card only communicates with the card reader.
  • the RFID film card does not communicate with the s im card.
  • the card reader reads the ID from the RFID film card, the card reader communicates with the s im card through a higher radio frequency, and the s im card verifies whether the ID read by the card reader is an ID bound to itself, and if so, Subsequent business, so that the distance control is realized by the RFID film card, and the s im card communicates directly with the card reader through the radio frequency to realize the payment operation.
  • the RFID film card does not need to bear the work of bridging and forwarding communication, and does not need to complete the payment operation, which simplifies the RFID film card circuit and reduces the power consumption of the RFID film card, making it easier to provide from the card reader. 13. Get enough working energy in a 56MHz magnetic field. But its shortcomings are the same as in Option 1.
  • NFC solution It is the only program approved by the International Standards Association.
  • the NFC solution uses a 13.56 MHz signal, and the card reader communicates with the SIM card through the mobile phone motherboard or directly communicates with the SIM card.
  • the mobile phone is designed with a 13.56MHz signal transceiver antenna.
  • NFC needs a customized mobile phone, and has restrictions on the structural design of the mobile phone, which is not conducive to designing various types of mobile phones, and it is necessary to replace the mobile phone for promotion.
  • Solution 4 The principle is the same as that of the NFC solution.
  • the antenna coil in the NFC custom mobile phone is changed to the antenna coil on the mobile phone, and the transmitting and receiving antenna coil is directly connected to the s im card. There is a problem with the reliability of the increased transceiver antenna coil.
  • Option 5 RFID-SIM card solution. Sim card communicates directly with the card reader via RF, reading the card The device measures the field strength of the transmitted signal of the s im card, and determines the distance of the mobile phone according to the field strength value. The distance control between the mobile phone and the card reader is inaccurate, and the distance of the payment operation cannot be absolutely and reliably controlled.
  • the technical problem to be solved by the present invention is to provide a method for implementing mobile payment and improve the reliability of mobile payment.
  • the present invention provides a method for implementing mobile payment, which includes the following steps:
  • the dual-frequency SIM card receives the wireless test signal of the first frequency transmitted by the card reading device, and detects the a field strength of a frequency wireless test signal, the dual frequency SIM card having a mobile payment function;
  • the dual-frequency SIM card compares the field strength of the first frequency wireless test signal with a card threshold value stored by itself, if the field of the first frequency wireless test signal is stronger than the card threshold Value, then transmitting its own identity information to the card reading device with a wireless signal of a second frequency;
  • the card reading device receives the wireless signal of the second frequency, obtains identity information of the dual-frequency SIM card, and sends the identity information to the first frequency signal;
  • the dual-frequency SIM card receives the first frequency signal and obtains identity information from the first frequency signal, and then compares it with the identity information stored by itself, and if allowed, allows the card reading device to Perform a swipe operation.
  • the mobile terminal performs calibration before performing the first mobile payment to set a credit threshold of the dual-frequency SIM card in the mobile terminal, where the calibration includes the following: Steps:
  • the dual-frequency SIM card in the uncalibrated mobile terminal detects the transmission by the card reading device After the field strength value of the wireless test signal of the first frequency reaches the set effective value, sending an automatic calibration request to the card reading device;
  • the card reading device after receiving the automatic calibration request, the card reading device detects a distance between the mobile terminal and itself, and searches for a calibrated mobile terminal in the set card reading range, if not Determining whether the distance between the mobile terminal and itself is less than a set calibration distance;
  • the card reading device if the distance between the mobile terminal and itself is less than the set calibration distance, the card reading device notifies the dual-frequency SIM card in the mobile terminal to detect the received wireless of the first frequency Test signal field strength value;
  • the dual-frequency SIM card stores the measured difference between the measured first field wireless test signal field strength value and the preset field strength margin as its own credit card threshold value in itself.
  • the mobile terminal performs calibration before performing the first mobile payment to set a credit threshold of the dual-frequency SIM card in the mobile terminal, where the calibration includes the following: Steps:
  • the calibrator transmits the wireless test signal of the first frequency, and sends the calibration communication protocol information to the dual-frequency SIM card of the mobile terminal by using the wireless signal of the second frequency;
  • the dual-frequency SIM card of the mobile terminal detects the field strength value of the received first frequency wireless test signal
  • the dual-frequency SIM card stores the measured difference between the measured first field wireless test signal field strength value and the preset field strength margin as its own credit card threshold value in itself.
  • the foregoing method may further have the following feature: after the mobile terminal is calibrated, the dual-frequency SIM card of the mobile terminal further stores an IMEI number of the mobile terminal, to determine before the mobile terminal performs a mobile payment operation. Whether calibration is required, specifically: if the IMEI number stored in the dual-frequency SIM card is consistent with the IMEI number of the mobile terminal where the dual-band SIM card is located, no calibration is required, otherwise Need to calibrate.
  • the above method may further have the following feature: the first frequency is in a high frequency HF band, and the second frequency is in a very high frequency VHF, ultra high frequency UHF or ultra high frequency SHF band.
  • the present invention also provides a mobile payment system, including a mobile terminal and a card reading device, wherein the mobile terminal has a dual frequency SIM card, wherein:
  • the card reading device includes a first main processing module and a first radio frequency transmitting module and a first communication module respectively connected to the first main processing module, wherein:
  • the first radio frequency transmitting module is configured to transmit a radio test signal of a first frequency, and send the identity information of the dual-frequency SIM card as a first frequency signal;
  • the first communication module is configured to receive a second frequency wireless signal that is sent by the dual-frequency SIM card and includes the identity information of the dual-frequency SIM card, obtain the identity information, and transmit the identity information to the a first radio frequency transmitting module;
  • the first main processing module is configured to perform a card swiping operation on the dual-frequency SIM card;
  • the dual-frequency SIM card includes a second main processing module and a first radio frequency receiving module connected to the second main processing module, and
  • the second communication module wherein:
  • the first radio frequency receiving module is configured to: when the dual-band SIM card enters a set card reading range of the card reading device, receive the wireless test signal of the first frequency, and detect the first frequency wireless Comparing the field strength of the test signal with the swipe threshold value stored by itself, and notifying the second communication module of the comparison result, and receiving the first frequency signal of the card reading device and from the first frequency signal Obtaining identity information, and then comparing with the identity information stored by itself, and if not, notifying the second main processing module to allow the card reading device to perform a card swipe operation;
  • the second communication module is configured to use the second frequency of the identity information of the dual-frequency SIM card when the comparison result is that the field of the first frequency wireless test signal is greater than the card threshold Wireless signal is sent to the card reading device;
  • the second main processing module is configured to process, according to the notification of the first radio frequency receiving module, The card swiping operation of the card reading device.
  • the above system may further have the following features, further comprising a calibrator, the calibrator comprising a third main processing module and a third interface module, a test signal transmitting module and a third communication module connected to the third main processing module , among them:
  • the third interface module is configured to receive user button information and initiate calibration
  • the test signal transmitting module is configured to: after the third interface module starts calibration, transmit a wireless test signal of the first frequency;
  • the third communication module is configured to send calibration communication protocol information to the dual-frequency SIM card of the mobile terminal by using the wireless signal of the second frequency;
  • the second communication module of the dual-frequency SIM card is further configured to receive the calibration communication protocol information, and notify the first radio frequency receiving module; the first radio frequency receiving module of the dual-frequency SIM card is further configured to The notification, receiving and detecting the field strength value of the first frequency wireless test signal, and then subtracting the difference between the field strength value of the first frequency wireless test signal and the preset field strength margin as a credit card threshold And store it.
  • the card reading device further includes a distance detecting module, wherein the distance detecting module is connected to the first main processing module, wherein:
  • the first radio frequency receiving module of the dual-frequency SIM card in the mobile terminal is further configured to: when detecting that the wireless signal field strength of the first frequency transmitted by the card reading device reaches After the valid value is set, the automatic calibration is started, and the second communication module is notified, and after receiving the notification from the distance detection module, the received field strength value of the first frequency of the wireless test signal is detected, and the field is measured.
  • the difference value after subtracting the preset field strength margin is stored in the self as the credit card threshold; the second communication module is further configured to: after receiving the notification of starting the automatic calibration, to read the The first communication module of the card device sends an automatic calibration request;
  • the first communication module of the card reading device is further configured to notify the distance detecting module to detect a distance between the mobile terminal and the card reading device after receiving the automatic calibration request;
  • the distance detecting module is configured to: after receiving the notification of the first communication module, detect a distance between the mobile terminal and the card reading device, and simultaneously search for whether the set card reading range has been The calibrated mobile terminal, if not, determines whether the distance between the mobile terminal and itself is less than a set calibration distance, and if not, notifies the first radio frequency receiving module of the dual-frequency SIM card to detect the received first frequency The wireless test signal field strength value.
  • the dual-band SIM card further includes a second interface module, configured to communicate with a motherboard of the mobile terminal where the dual-band SIM is located.
  • the above system may further have the following characteristics: the first frequency is in a high frequency HF band, and the second frequency is in a very high frequency VHF, ultra high frequency UHF or ultra high frequency SHF band.
  • the invention not only eliminates various restrictions on the design of a mobile terminal such as a mobile phone having a mobile payment function, but also ensures the accuracy of the communication distance control in the mobile payment process, thereby effectively improving the reliability of the mobile payment.
  • FIG. 1 is a structural diagram of a card reading device in a mobile payment system according to the present invention.
  • FIG. 2 is a structural diagram of a dual-frequency SIM card of a mobile terminal in the mobile payment system of the present invention
  • FIG. 3 is a structural diagram of a calibrator in the mobile payment system of the present invention.
  • the mobile payment payment method is used to perform mobile payment using the mobile payment implementation method of the present invention.
  • the method and process for calibration will be described later.
  • the implementation method of the mobile payment of the present invention comprises the following steps: Step 101: When the mobile terminal with the dual-frequency SIM card enters the set card reading range of the card reading device, the dual-frequency SIM card receives the wireless test signal of the first frequency transmitted by the card reading device, and detects the first frequency wireless test. The field strength of the signal, wherein the dual-frequency SIM card has a mobile payment function;
  • the mobile payment implementation method of the present invention requires a dual-frequency SIM card in the mobile terminal, and the so-called dual-frequency SIM card refers to a SIM card capable of communicating at two frequencies, and the use of the two frequencies is mainly based on the consideration of the mobile payment function.
  • One of the frequencies is used for distance control of mobile payments, to avoid accidental card swiping, and another frequency for communication, including payment operations.
  • the setting of the card reading range can be preset by the mobile payment system, for example, it can be set within 10 cm from the card reading device.
  • the first frequency is in the high frequency HF band, for example, it can be 13.16 MHz.
  • the card reading device here refers to various card readers, such as an electronic sales terminal P0S (point of sale) machine.
  • Step 102 The dual-frequency SIM card compares the field strength of the first frequency wireless test signal with the credit card threshold stored by itself, and if the field of the first frequency wireless test signal is stronger than the credit card threshold, The information is sent to the card reading device by the wireless signal of the second frequency;
  • the credit card threshold is obtained by calibration. After the dual-frequency SIM card is loaded into the mobile terminal, it needs to be performed once and only needs one calibration to obtain a magnetic field strength swipe threshold of the first frequency wireless signal (referred to herein as Swipe threshold), no further calibration is required for subsequent swipe operations.
  • Swipe threshold a magnetic field strength swipe threshold of the first frequency wireless signal
  • the second frequency is higher than the first frequency, and the second frequency is in the VHF, UHF UHF or UHF SHF frequency band, for example, 2.45 GHz, the same below, and will not be described again.
  • the dual frequency SIM card establishes a communication channel with the wireless signal of the second frequency between the card reader and the card reading device.
  • Step 103 The card reading device receives the wireless signal of the second frequency, obtains the identity information of the dual-frequency SIM card, and then sends the identity information by using the first frequency signal.
  • Step 104 The dual-frequency SIM card receives the first frequency signal of the card reading device and obtains the identity information therefrom, and then compares with the identity information stored by itself, and if allowed, the card reading device allows the card reading device to perform the card swiping operation.
  • the card reading device performs a card swipe operation on itself.
  • the calibration is explained in detail below.
  • the payment operation of the mobile terminal is started when the magnetic field strength detected by the dual-frequency sim card is greater than the credit card threshold. It is also necessary to set a new card threshold for the dual-band s im card when replacing the mobile terminal. Calibration is the process of setting a new swipe threshold for a dual-band sim card.
  • the basic principle of mobile terminal calibration is: attach the mobile terminal to the card reading device (or dedicated calibrator), let the mobile terminal be closest to the card reading device (or dedicated calibrator), and test the dual-frequency sim card of the mobile terminal.
  • the magnetic field strength of the wireless signal transmitted by the card reader (or dedicated calibrator) received, and the measured magnetic field strength minus a magnetic field strength margin (ie, the preset field strength margin) to obtain the magnetic field strength threshold value.
  • the magnetic field strength margin is used to ensure that the mobile phone is slightly farther away from the card reader, but the magnetic field strength when the distance is less than about 10 cm is also greater than the adjustment value of the magnetic field strength threshold.
  • the interface module can interact with the mobile terminal to read the IMEI (International Mobile Equipment Identity) number of the mobile terminal.
  • IMEI International Mobile Equipment Identity
  • the IMEI numbers of different mobile terminals are different.
  • the dual-frequency sim card compares with the IMEI number stored in the card. If it is not the same, it is determined that the dual-frequency sim card has replaced the mobile terminal or is the first time using the mobile terminal, and the card-swapping operation is prohibited. Calibration operation.
  • the IMEI number of the read mobile terminal is stored in the card, and is used for the comparison judgment data source for starting the calibration when the power is turned on next time, that is, if the IMEI number saved in the dual-frequency sim card is current and current If the IMEI number of the mobile terminal where the dual-frequency SIM card is located is the same, no calibration is required, otherwise calibration is performed.
  • the automatic calibration method can include the following steps:
  • Step 11 The dual-frequency SIM card in the uncalibrated mobile terminal detects that the field strength value of the wireless test signal of the first frequency transmitted by the card reading device reaches the set effective value, and sends an automatic calibration request to the card reading device, that is, starts Calibration
  • the set effective value here is the minimum value of the swipe threshold of the mobile terminal of these models after being tested by a large number of swipe thresholds of various types of mobile terminals.
  • the dual frequency SIM card uses the wireless signal of the second frequency to establish a communication channel with the card reading device, and sends an automatic calibration request.
  • Step 12 After receiving the automatic calibration request, the card reading device detects the distance between the mobile terminal and itself, and searches for a calibrated mobile terminal within the set card reading range. If not, determines the uncalibrated mobile terminal and itself. Whether the distance between them is less than the set calibration distance;
  • the card reading device searches for the calibrated mobile terminal within the set card reading range while performing the distance detection. If so, the current calibration operation is stopped to avoid miscalibration. Because the dual-frequency sim card in the calibrated mobile terminal detects that the magnetic field strength of the first frequency wireless test signal transmitted by the card reading device is greater than the credit card threshold, communication with the card reading device is initiated, thereby interacting with the card reading device Perform a swipe operation.
  • Step 13 If the distance between the mobile terminal and the card reading device itself is less than the set calibration distance, the card reading device notifies the dual frequency SIM card in the mobile terminal to detect the field strength of the received wireless test signal of the first frequency.
  • Step 14 The dual-frequency SIM card stores the measured difference between the measured first-order wireless signal field strength value and the preset field strength margin as its own credit card threshold value in itself.
  • the preset field strength margin is used to ensure that the mobile terminal is slightly farther away from the card reading device, but the magnetic field strength when the distance is less than the set card reading range (for example, 10 cm) is greater than the adjustment amount of the card threshold.
  • the dual-frequency s im card after automatic calibration can also record the IMEI number of the mobile terminal. Whether it is necessary to make an automatic calibration judgment for future mobile payment operations. Specifically: if dual frequency
  • the IMEI number stored in the SIM card does not need to be calibrated if it matches the IMEI number of the mobile terminal where the dual-band SIM card is located. Otherwise, calibration is required.
  • the dual-band s im card and the card reader immediately start the normal mobile payment operation, so that the user does not feel the calibration process, and the whole user uses the same process as the normal card process.
  • the professional calibration method can include the following steps:
  • Step 21 When the mobile terminal power is turned on, the mobile terminal is placed on the calibrator to start calibration;
  • Step 22 The calibrator transmits a wireless test signal of the first frequency, and sends the calibration communication protocol information to the dual-frequency SIM card of the mobile terminal by using the wireless signal of the second frequency;
  • the first frequency can be 13.56 MHz.
  • Step 23 After receiving the calibration communication protocol information, the dual-frequency SIM card of the mobile terminal detects the field strength value of the received first frequency wireless ⁇ ! 'J test signal;
  • Step 24 The dual-frequency SIM card stores the measured difference between the measured field strength of the first frequency wireless test signal and the preset field strength margin as its own card threshold value in itself.
  • the calibrated dual-band s im card can also record the IMEI number of the mobile terminal, and it is used for the judgment of whether the calibration needs to be performed in the subsequent mobile payment operation. Specifically, if the IMEI number stored in the dual-frequency SIM card is the same as the IMEI number of the mobile terminal where the dual-band SIM card is located, calibration is not required, otherwise calibration is required. The entire calibration process can be completed in about 3 seconds. After the calibration is completed, the calibrator can emit an audible and visual signal through the LED and sounding device of the human interface.
  • the implementation method of the mobile payment of the invention not only eliminates various restrictions on the design of mobile terminals such as mobile phones with mobile payment functions, but also ensures communication distance control in the process of mobile payment. The accuracy of the system, thus effectively improving the reliability of mobile payments.
  • the present invention also proposes a mobile payment system comprising a mobile terminal and a card reading device, wherein the mobile terminal has a dual frequency SIM card.
  • 1 is a structural diagram of a card reading apparatus in a mobile payment system of the present invention.
  • the card reading device 100 can include a first main processing module 104 and a first RF transmitting module 102 and a first communication module 101 respectively connected to the first main processing module 104, wherein:
  • the first RF transmitting module 102 is configured to transmit a wireless test signal of the first frequency, and send the identity information of the dual-frequency SIM card 200 as the first frequency signal;
  • the first communication module 101 is configured to receive a wireless signal of a second frequency that includes the identity information of the dual-frequency SIM card 200 sent by the dual-frequency SIM card 200, obtain the identity information, and transmit the identity information to the first radio frequency. Transmitting module 102;
  • the first main processing module 104 is used for performing the card swiping operation on the dual-frequency SIM card 200, and can also be used to coordinate the work of each part of the card reading device 100.
  • the dual-band SIM card 20Q includes a second main processing module 204 and a first radio frequency receiving module 202 and a second communication module 201 connected to the second main processing module 204, wherein:
  • the first RF receiving module 202 is configured to receive a wireless test signal of a first frequency and detect a field strength of the first frequency wireless test signal when the dual-frequency SIM card 200 enters a set card reading range of the card reading device 100, Comparing with the stored credit card threshold value, and notifying the second communication module 201 of the comparison result, and receiving the first frequency signal of the card reading device 100 and acquiring the identity information from the first frequency signal, and then The stored identity information is compared, and if yes, the second main processing module 2 is notified to allow the card reading device 1 to perform a card swipe operation;
  • the second communication module 201 is configured to send the identity information of the dual-frequency SIM card 200 to the card reading device 100 by using the wireless signal of the second frequency when the comparison result is that the field of the first frequency wireless test signal is stronger than the card threshold.
  • the second main processing module 204 is configured to process the card swiping operation of the card reading device 100 according to the notification of the first radio frequency receiving module, and can also be used to coordinate the work of each part of the dual frequency S IM card 200.
  • the mobile payment system of the present invention may also include a calibrator 300.
  • Fig. 3 is a structural diagram of a calibrator in the mobile payment system of the present invention.
  • the calibrator 300 can include a third main processing module 304 and a third interface module 303, a test signal transmitting module 302, and a third communication module 301 connected to the third main processing module 304, wherein:
  • the third interface module 303 is configured to receive user button information, initiate calibration, and the third interface module 303 is a human interface module;
  • the test signal transmitting module 302 is configured to transmit a wireless test signal of a first frequency after the third interface module 303 starts calibration;
  • the third communication module 301 is configured to send calibration communication protocol information to the dual-band SIM card 200 of the mobile terminal by using the wireless signal of the second frequency.
  • the third main processing module 304 is for coordinating the operation of various parts of the calibrator 300;
  • the second communication module 101 of the dual-frequency SIM card 200 can also be configured to receive the calibration communication protocol information and notify the first radio frequency receiving module 202.
  • the first radio frequency receiving module 202 of the dual-band SIM card 200 can also be used to And receiving and detecting the field strength value of the first frequency wireless test signal, and then subtracting the difference between the field strength value of the first frequency wireless test signal and the preset field strength margin as a credit card threshold value and storing.
  • the card reading device 100 may further include a distance detecting module 103.
  • the distance detecting module 103 is connected to the first main processing module 104.
  • the card reading device 100 may further include a first interface module 105, where:
  • the first radio frequency receiving module 202 of the dual-frequency SIM card 200 in the mobile terminal can also be used to detect that the wireless signal field strength value of the first frequency transmitted by the card reading device 100 reaches the set effective value.
  • the automatic calibration is started, and the second communication module 201 is notified, and after receiving the notification from the distance detecting module 103, the received field strength value of the wireless test signal of the first frequency is detected.
  • the difference between the measured field strength value and the preset field strength margin is stored as a credit card threshold value in the self; the second communication module 201 can also be used to read the card after receiving the notification of starting the automatic calibration.
  • the first communication module 101 of the device 100 sends an automatic calibration request;
  • the first communication module 101 of the card reading device 100 can also be configured to notify the distance detecting module 103 to detect the distance between the mobile terminal and the card reading device 100 after receiving the automatic calibration request;
  • the distance detecting module 103 is configured to detect the distance between the mobile terminal and the card reading device 100 after receiving the notification of the first communication module 101, and simultaneously search for a calibrated mobile terminal within the set card reading range, if not Determining whether the distance between the uncalibrated mobile terminal and itself is less than a set calibration distance, and if not, notifying the first radio frequency receiving module 202 of the dual-frequency SIM card 200 to detect the received wireless test signal field of the first frequency Strong value.
  • the first interface module 105 can be used to connect to an electronic consumer terminal (such as a POS machine) and accept control of the electronic consumer terminal.
  • an electronic consumer terminal such as a POS machine
  • the dual-band SIM card 200 may further include a second interface module 203 for communicating with the main board of the mobile terminal where the dual-band SIM card 200 is located.
  • the mobile payment system of the invention not only has various limitations on the design of the mobile terminal structure such as a mobile phone with mobile payment function, but also ensures the accuracy of the communication distance control in the mobile payment process, thereby effectively improving the reliability of the mobile payment. Sex.

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Description

说 明 书 移动支付的实现方法及移动支付系统 技术领域
本发明涉及电子支付领域,尤其涉及一种移动支付的实现方法及一种移 动支付系统。 背景技术
使用 13. 56MHz的无源 RFID ( Radio Frequency Ident if ica t ion,射频识 别)技术已经非常成熟。 13. 56MHz的无源 RFID卡从读卡器发出的 13. 56MHz 的磁场中获取工作能源, 不需要另外提供电源即可工作, 完成电子支付的操 作。 比如目前大量使用的公交卡。 这种方式的读卡器天线线圈的形式决定了 13. 56MHz的磁场能量随着卡与读卡器的距离的增加而迅速衰减的特性,即近 场特性。 近场特性为: 磁场强度与距离的 3次方成反比。从而使得 13. 56MHz 的无源 RFID卡离读卡器较远的距离时, 不能从磁场中获得足够的能量, 从 而实现距离控制的目的, 一般的距离控制要求为操作距离小于 10cm。
目前, 已有的各种手机等移动终端支付的解决方案都不太成熟, 有各种 各样的缺点, 不利于推广使用。 主要有以下 5种方案。
方案 1 : 在手机上贴上一个 13. 56MHz的 RFID信号转发电路贴膜卡,手 机中的 SIM卡、读卡器 3者配合完成手机支付的操作。 RFID贴膜卡与读卡器 之间使用 13. 56MHz通讯, RFID贴膜卡同时与手机内的 s im卡使用更高的射 频通讯, 比如使用 2. 45GHz的频段。 读卡器与 s im卡之间不能直接通讯, 通 过 RFID贴膜卡桥接转发通讯。 目前已经成熟的 13. 56MHz RFID技术已经可 以不需要 s im卡的支持单独完成支付功能, 比如常用的公交卡。 RFID贴膜卡 本来就可以单独完成支付功能。为了让手机 SIM卡支持支付功能而强行改造 s im卡和贴膜卡, 让 s im卡可以透过 RFID贴膜卡转发而实现手机支付功能。 如果是金属外壳手机,贴膜卡只能贴于手机外壳的外表面,才可以正常使用, 贴膜卡容易磨损被破坏。 由于 RFID贴膜卡与手机内的 s im卡使用更高的射 频通讯, 为了避免 RFID贴膜卡与周围别的手机进行通讯, 造成手机支付误 操作, 需要绑定 s im卡和 RFID贴膜卡。 用户更换手机时, 将原有 s im卡装 入新手机的同时, 需要将 RFID贴膜卡撕下来贴于新的手机上, 这个操作存 在很大的可靠性问题。 用户更换手机时, 或者使用购买新的 RFID贴膜卡, 然后需要一个操作, 让 s im卡与新的 RFID贴膜卡绑定。
方案 2: 方案 1的改进。 在手机上贴上一个 13. 56MHz的 RFID贴膜卡, RFID贴膜卡只与读卡器通讯, RFID贴膜卡不与 s im卡通讯。 读卡器从 RFID 贴膜卡读取 ID, 读卡器通过更高的射频与 s im卡通讯, s im卡验证读卡器读 到的 ID是否为与自己绑定的 ID,如果是,才进行后续的业务,从而通过 RFID 贴膜卡来实现距离控制, s im卡通过射频直接与读卡器通讯实现支付操作。 这种方案 RFID贴膜卡不需承担桥接转发通讯的工作, 也不需要完成支付的 操作, 简化了 RFID贴膜卡电路, 减小了 RFID贴膜卡的电源消耗, 使其更容 易从读卡器提供的 13. 56MHz的磁场中获取足够的工作能量。 但是其缺点与 方案 1一样。
方案 3: NFC方案。 是唯一得到国际标准协会认可的方案。 NFC方案使用 13. 56MHz的信号, 读卡器通过手机主板与 SIM卡通讯或直接与 SIM卡通讯。 手机上设计有 13. 56MHz 的信号收发天线。 NFC需要定制手机, 而且对手机 的结构设计有限制, 不利于设计各种款式的手机, 推广使用必须更换手机。
方案 4: 原理与 NFC方案相同, 只是将 NFC定制手机中的天线线圈, 改 为在手机上增加收发天线线圈, 收发天线线圈直接与 s im卡连接。 增加的收 发天线线圈的可靠性存在问题。
方案 5: RFID-SIM卡的方案。 Sim卡通过射频直接与读卡器通讯, 读卡 器测量 s im卡的发射信号的场强, 根据场强值来判断手机的距离。 这个方案 手机和读卡器的距离控制不准确, 不能绝对可靠的控制支付操作的距离。
由上可见, 现有的各种移动支付解决方案中, 都不同程度地存在可靠性 差的问题。 发明内容
本发明所要解决的技术问题是提供一种移动支付的实现方法,提高移动 支付的可靠性。
为解决上述技术问题, 本发明提出了一种移动支付的实现方法, 包括以 下步骤:
( a )具有双频 SIM卡的移动终端进入读卡装置的设定读卡范围内时, 所 述双频 SIM卡接收所述读卡装置发射的第一频率的无线测试信号, 并检测该 第一频率无线测试信号的场强, 所述双频 SIM卡具有移动支付功能;
( b )所述双频 SIM卡将所述第一频率无线测试信号的场强同自身存储 的刷卡门限值进行比较,若所述第一频率无线测试信号的场强大于所述刷卡 门限值, 则将自身的身份信息用第二频率的无线信号发送给所述读卡装置;
( c ) 所述读卡装置接收所述第二频率的无线信号, 获得所述双频 SIM 卡的身份信息, 再将该身份信息以第一频率信号发送出去;
( d )所述双频 SIM卡接收所述第一频率信号并从所述第一频率信号中 获取身份信息, 然后与自身存储的身份信息进行比较, 若一致则允许所述读 卡装置对自身进行刷卡操作。
进一步地, 上述方法还可具有以下特点, 所述移动终端在进行第一次移 动支付之前先进行校准, 以设定该移动终端中双频 S IM卡的刷卡门限值, 所 述校准包括以下步骤:
( 11 )未经校准的移动终端中的双频 SIM卡检测到所述读卡装置发射的 第一频率的无线测试信号场强值达到设定有效值后, 向所述读卡装置发送自 动校准请求;
( 12 )所述读卡装置收到所述自动校准请求后, 检测所述移动终端与自 身之间的距离, 同时搜索所述设定读卡范围内是否有已校准的移动终端, 若 无则判断所述移动终端与自身之间的距离是否小于设定的校准距离;
( 13 )若所述移动终端与自身之间的距离小于所述设定的校准距离, 则 所述读卡装置通知所述移动终端中的双频 S IM卡检测接收到的第一频率的无 线测试信号场强值;
( 14 )所述双频 S IM卡将测得的第一频率无线测试信号场强值减去预设 场强余量之后的差值作为自身的刷卡门限值存储于自身中。
进一步地, 上述方法还可具有以下特点, 所述移动终端在进行第一次移 动支付之前先进行校准, 以设定该移动终端中双频 S IM卡的刷卡门限值, 所 述校准包括以下步骤:
( 21 )在所述移动终端电源开启的情况下, 将所述移动终端放在校准器 上, 启动校准;
( 22 )所述校准器发射所述第一频率的无线测试信号, 通过所述第二频 率的无线信号向所述移动终端的双频 SIM卡发送校准通讯协议信息;
( 23 )所述移动终端的双频 SIM卡收到所述校准通讯协议信息后, 检测 接收到的所述第一频率无线测试信号的场强值;
( 24 )所述双频 S IM卡将测得的第一频率无线测试信号场强值减去预设 场强余量之后的差值作为自身的刷卡门限值存储于自身中。
进一步地, 上述方法还可具有以下特点, 所述移动终端校准后, 所述移 动终端的双频 SIM卡还存储所述移动终端的 IMEI号, 用以在所述移动终端 进行移动支付操作前判断是否需要校准, 具体为: 若所述双频 SIM卡中存储 的 IMEI号与所述双频 SIM卡所在移动终端的 IMEI号一致则不需校准, 否则 需要校准。
进一步地, 上述方法还可具有以下特点, 所述第一频率处于高频 HF频 段中, 所述第二频率处于甚高频 VHF、 特高频 UHF或超高频 SHF频段中。
为解决上述技术问题, 本发明还提出了一种移动支付系统, 包括移动终 端和读卡装置, 所述移动终端中具有双频 SIM卡, 其中:
所述读卡装置包括第一主处理模块以及分别与该第一主处理模块相连 的第一射频发射模块和第一通讯模块, 其中:
所述第一射频发射模块, 用于发射第一频率的无线测试信号, 并将双频 SIM卡的身份信息以第一频率信号进行发送;
所述第一通讯模块, 用于接收所述双频 SIM卡发送的包含该双频 SIM卡 的身份信息的第二频率的无线信号, 获取所述身份信息, 并将该身份信息传 送给所述第一射频发射模块;
所述第一主处理模块, 用于对所述双频 SIM卡进行刷卡操作; 所述双频 S IM卡包括第二主处理模块以及与该第二主处理模块相连的第 一射频接收模块和第二通讯模块, 其中:
所述第一射频接收模块, 用于在所述双频 SIM卡进入所述读卡装置的设 定读卡范围内时, 接收所述第一频率的无线测试信号, 并检测该第一频率无 线测试信号的场强, 同自身存储的刷卡门限值进行比较, 并将比较结果通知 所述第二通讯模块,还用于接收所述读卡装置的第一频率信号并从该第一频 率信号中获取身份信息, 然后与自身存储的身份信息进行比较, 若一致则通 知所述第二主处理模块允许所述读卡装置进行刷卡操作;
所述第二通讯模块, 用于在所述比较结果为所述第一频率无线测试信号 的场强大于所述刷卡门限值时, 则将所述双频 SIM卡的身份信息用第二频率 的无线信号发送给所述读卡装置;
所述第二主处理模块, 用于根据所述第一射频接收模块的通知, 处理所 述读卡装置的刷卡操作。
进一步地, 上述系统还可具有以下特点, 还包括校准器, 所述校准器包 括第三主处理模块以及与该第三主处理模块相连的第三接口模块、测试信号 发射模块和第三通讯模块, 其中:
所述第三接口模块, 用于接收使用者按键信息, 启动校准;
所述测试信号发射模块, 用于在所述第三接口模块启动校准后, 发射所 述第一频率的无线测试信号;
所述第三通讯模块,用于通过所述第二频率的无线信号向所述移动终端 的双频 SIM卡发送校准通讯协议信息;
所述双频 SIM卡的第二通讯模块, 还用于接收所述校准通讯协议信息, 并通知所述第一射频接收模块; 所述双频 SIM卡的第一射频接收模块, 还用 于根据所述通知, 接收并检测所述第一频率无线测试信号的场强值, 然后将 该第一频率无线测试信号的场强值减去预设场强余量之后的差值作为刷卡 门限值并存储。
进一步地, 上述系统还可具有以下特点, 所述读卡装置还包括距离检测 模块, 所述距离检测模块与所述第一主处理模块相连, 其中:
在所述移动终端未经校准时, 所述移动终端中双频 S IM卡的第一射频接 收模块,还用于在检测到所述读卡装置发射的第一频率的无线信号场强值达 到设定有效值后, 启动自动校准, 并通知所述第二通讯模块, 以及在收到所 述距离检测模块的通知后检测接收到的第一频率的无线测试信号场强值,将 测该场强值减去预设场强余量之后的差值作为刷卡门限值存储于自身中; 所述第二通讯模块, 还用于在收到所述启动自动校准的通知后, 向所述 读卡装置的第一通讯模块发送自动校准请求;
所述读卡装置的第一通讯模块, 还用于在收到所述自动校准请求后, 通 知所述距离检测模块检测所述移动终端与所述读卡装置之间的距离; 所述距离检测模块, 用于在收到所述第一通讯模块的通知后, 检测所述 移动终端与所述读卡装置之间的距离, 同时搜索所述设定读卡范围内是否有 已校准的移动终端, 若无则判断所述移动终端与自身之间的距离是否小于设 定的校准距离,若小于则通知所述双频 SIM卡的第一射频接收模块检测接收 到的第一频率的无线测试信号场强值。
进一步地, 上述系统还可具有以下特点, 所述双频 S IM卡中还包括第二 接口模块, 用于与所述双频 SIM所在移动终端的主板进行通信。
进一步地, 上述系统还可具有以下特点, 所述第一频率处于高频 HF频 段中, 所述第二频率处于甚高频 VHF、 特高频 UHF或超高频 SHF频段中。
本发明不仅消除了对于具有移动支付功能的手机等移动终端结构设计 上的各种限制, 而且保证了移动支付过程中通信距离控制的准确性, 因此有 效地提高了移动支付的可靠性。 附图说明
图 1为本发明移动支付系统中读卡装置的一种结构图;
图 2为本发明移动支付系统中移动终端的双频 SIM卡的一种结构图; 图 3为本发明移动支付系统中校准器的一种结构图。 具体实施方式
以下结合附图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。
首先说明一下,使用本发明移动支付的实现方法进行移动支付的移动终 进行移动支付, 关于校准的方法及过程我们在后面说明。
本发明移动支付的实现方法包括以下步骤: 步骤 101 , 具有双频 SIM卡的移动终端进入读卡装置的设定读卡范围内 时, 双频 SIM卡接收读卡装置发射的第一频率的无线测试信号, 并检测该第 一频率无线测试信号的场强, 其中, 双频 SIM卡具有移动支付功能;
本发明移动支付的实现方法中要求移动终端中具有双频 SIM卡,所谓的 双频 SIM卡是指能够以两种频率进行通信的 SIM卡,使用两种频率主要是基 于移动支付功能的考虑, 其中一种频率用于移动支付的距离控制, 避免误刷 卡, 另一种频率用来通信, 包括支付操作等。 设定读卡范围可以由移动支付 系统预先设定, 比如可以设定为距离读卡装置 10cm以内。
其中, 第一频率处于高频 HF频段中, 比如可以为通用的 13. 56MHz。 这里的读卡装置就是指各种读卡器, 比如电子销售终端 P0S (销售点) 机等。
步骤 102 , 双频 SIM卡将上述第一频率无线测试信号的场强同自身存储 的刷卡门限值进行比较, 若第一频率无线测试信号的场强大于刷卡门限值, 则将自身的身份信息用第二频率的无线信号发送给读卡装置;
其中, 刷卡门限值是通过校准得到的, 双频 SIM卡装入移动终端后, 需 要进行一次且仅需一次校准,得到一个第一频率无线信号的磁场强度刷卡门 限值(本文中简称为刷卡门限值) , 以后的刷卡操作不再需要校准。
其中, 第二频率高于第一频率, 第二频率处于甚高频 VHF、 特高频 UHF 或超高频 SHF频段中, 比如可以是 2. 45GHz , 下同, 不再赘述。 双频 S IM卡 与读卡装置之间使用第二频率的无线信号建立通信信道。
步骤 103 , 读卡装置接收第二频率的无线信号, 获得双频 S IM卡的身份 信息, 再将该身份信息以第一频率信号进行发送;
步骤 104 , 双频 SIM卡接收读卡装置的第一频率信号并从中获取身份信 息, 然后与自身存储的身份信息进行比较, 若一致则允许该读卡装置对自身 进行刷卡操作, 否则不允许该读卡装置对自身进行刷卡操作。 下面具体说明一下校准。虽然移动终端中双频 s im卡检测到的磁场强度, 随着与读卡装置之间的距离增大衰减很快,很容易实现约 10cm的距离控制, 但不同移动终端的结构不相同,对双频 sim卡接收到的磁场信号的屏蔽衰减 量不相同, 所以, 不同的移动终端需要设定不同的磁场强度刷卡门限值。 当 双频 sim 卡检测到的磁场强度大于刷卡门限值时才启动移动终端的支付操 作。 更换移动终端时也需要对双频 s im卡设置新的刷卡门限值。 校准就是设 置双频 sim卡新的刷卡门限值的过程。
移动终端校准的基本原理是: 将移动终端贴于读卡装置(或者专用的校 准器)上, 让移动终端距离读卡装置(或者专用的校准器)最近, 移动终端 的双频 sim卡测试此时接收到的读卡装置 (或者专用的校准器)发射的无线 信号的磁场强度, 将测得的磁场强度再减去一个磁场强度余量(即预设场强 余量)得到磁场强度门限值。磁场强度余量是用于保证手机距读卡器稍远时, 但小于约 10cm的距离时的磁场强度也大于磁场强度门限值的调整值。
双频 sim卡上电复位后可以通过接口模块与移动终端交互,读取移动终 端的 IMEI ( International Mobile Equipment Identity, 国际移动设备身 份码)号, 不同的移动终端的 IMEI号是不同的。 双频 sim卡读到移动终端 的 IMEI号后与卡内存储的 IMEI号比对, 如果不相同, 就判定为双频 sim卡 更换了移动终端或者是初次使用移动终端,便禁止刷卡操作,启动校准操作。 校准操作完成后, 将读取的移动终端的 IMEI 号存到卡中, 用于下次开机上 电时是否需要启动校准的比较判断数据源, 即若双频 sim卡中保存的 IMEI 号与当前该双频 sim卡所在移动终端的 IMEI号一致, 则不需校准, 否则就 要进行校准。
校准方式可以有很多, 这里我们给出两种校准方式: 自动校准方式和专 业校准方式。 当然, 只要能实现设定正确刷卡门限值的目的, 可以采用其他 的任何校准方式。 自动校准方式可以包括如下步骤:
步骤 11 ,未经校准的移动终端中的双频 SIM卡检测到读卡装置发射的第 一频率的无线测试信号场强值达到设定有效值后, 向读卡装置发送自动校准 请求, 即启动校准;
这里的设定有效值, 是经过测试大量各种型号移动终端的刷卡门限值, 统计出来的这些型号移动终端的刷卡门限值的最小值。双频 SIM卡使用第二 频率的无线信号与读卡装置建立通信信道, 发送自动校准请求。
步骤 12 ,读卡装置收到自动校准请求后,检测移动终端与自身之间的距 离, 同时搜索设定读卡范围内是否有已校准的移动终端, 若无则判断未校准 的移动终端与自身之间的距离是否小于设定的校准距离;
读卡装置实现距离监测的方法很多, 比如可以使用下列中的任何一种: 射频回波检测、 超声波检测、 磁场强度变化检测等。
读卡装置在进行距离检测的同时搜索设定读卡范围内是否有已校准的 移动终端同时, 如果有, 就停止本次的校准操作, 以避免误校准。 因为已校 准的移动终端中的双频 s im卡如果检测到读卡装置发射的第一频率无线测试 信号的磁场强度大于刷卡门限值就会启动与读卡装置的通讯,从而与读卡装 置进行刷卡操作。
步骤 13 , 若移动终端与读卡装置自身之间的距离小于设定的校准距离, 则读卡装置通知该移动终端中的双频 SIM卡检测接收到的第一频率的无线测 试信号的场强值;
步骤 14 ,所述双频 SIM卡将测得的第一频率无线信号场强值减去预设场 强余量之后的差值作为自身的刷卡门限值存储于自身中。
预设场强余量是用于保证移动终端距离读卡装置稍远时,但小于设定的 读卡范围 (比如 10cm ) 的距离时的磁场强度也大于刷卡门限值的调整量。
实现自动校准后的双频 s im卡可以将本移动终端的 IMEI号也记录下来, 用于以后的移动支付操作时是否需要进行自动校准的判断。 具体为: 若双频
SIM卡中存储的 IMEI号与该双频 SIM卡所在移动终端的 IMEI号一致则不需 校准, 否则需要校准。 经自动校准后, 双频 s im卡和读卡器立即启动正常的 移动支付操作, 让用户感觉不到校准的过程, 整个用户使用过程就象正常刷 卡过程一样。
专业校准方式可以包括如下步骤:
步骤 21 , 在移动终端电源开启的情况下, 将移动终端放在校准器上, 启 动校准;
当用户使用新的双频 s im卡,或者更换新移动终端使用原有双频 s im卡 时, 只需打开移动终端的电源后, 将移动终端放在专用的校准器上。 然后按 下专用校准器上的的启动校准按钮启动校准。
步骤 22 ,校准器发射第一频率的无线测试信号,通过第二频率的无线信 号向移动终端的双频 SIM卡发送校准通讯协议信息;
比如第一频率可以为 13. 56MHz。
步骤 23 ,移动终端的双频 SIM卡收到校准通讯协议信息后,检测接收到 的第一频率无线^! 'J试信号的场强值;
步骤 24 ,双频 SIM卡将测得的第一频率无线测试信号场强值减去预设场 强余量之后的差值作为自身的刷卡门限值存储于自身中。
实现校准后的双频 s im卡可以将本移动终端的 IMEI号也记录下来, 用 于以后的手机支付操作时是否需要进行校准的判断。 具体为: 若双频 SIM卡 中存储的 IMEI号与该双频 SIM卡所在移动终端的 IMEI号一致则不需校准, 否则需要校准。 整个校准过程大约 3秒钟内就可完成, 校准完成后, 校准器 可以通过人机接口的 LED和发声装置, 发出声光提示信号。
本发明移动支付的实现方法不仅消除了对于具有移动支付功能的手机 等移动终端结构设计上的各种限制, 而且保证了移动支付过程中通信距离控 制的准确性, 因此有效地提高了移动支付的可靠性。
为了实现上述的移动支付的实现方法, 本发明还提出了一种移动支付系 统, 包括移动终端和读卡装置, 其中移动终端中具有双频 SIM卡。 图 1为本 发明移动支付系统中读卡装置的一种结构图。 如图 1所示, 读卡装置 100可 以包括第一主处理模块 104以及分别与该第一主处理模块 104相连的第一射 频发射模块 102和第一通讯模块 101 , 其中:
第一射频发射模块 102用于发射第一频率的无线测试信号, 将双频 SIM 卡 200的身份信息以第一频率信号进行发送;
第一通讯模块 101用于接收双频 S IM卡 200发送的包含该双频 S IM卡 200 的身份信息的第二频率的无线信号, 获取该身份信息, 并将该身份信息传送 给第一射频发射模块 102;
第一主处理模块 104用于对双频 SIM卡 200进行刷卡操作,还可以用于 协调读卡装置 100各部分的工作。
图 2为本发明移动支付系统中移动终端的双频 SIM卡的一种结构图。如 图 2所示,双频 S IM卡 20Q包括第二主处理模块 204以及与该第二主处理模 块 204相连的第一射频接收模块 202和第二通讯模块 201 , 其中:
第一射频接收模块 202用于在双频 SIM卡 200进入读卡装置 100的设定 读卡范围内时, 接收第一频率的无线测试信号, 并检测该第一频率无线测试 信号的场强, 同自身存储的刷卡门限值进行比较, 并将比较结果通知第二通 讯模块 201 , 还用于接收读卡装置 100的第一频率信号并从该第一频率信号 中获取身份信息, 然后与自身存储的身份信息进行比较, 若一致则通知第二 主处理模块 2 Q4允许读卡装置 1 QQ进行刷卡操作;
第二通讯模块 201用于在比较结果为第一频率无线测试信号的场强大于 刷卡门限值时, 则将双频 SIM卡 200的身份信息用第二频率的无线信号发送 给读卡装置 100; 第二主处理模块 204用于根据第一射频接收模块的通知,处理读卡装置 100的刷卡操作, 还可以用于协调双频 S IM卡 200各部分的工作。
本发明的移动支付系统还可以包括校准器 300。 图 3为本发明移动支付 系统中校准器的一种结构图。 如图 3所示, 校准器 300可以包括第三主处理 模块 304以及与该第三主处理模块 304相连的第三接口模块 303、 测试信号 发射模块 302和第三通讯模块 301 , 其中:
第三接口模块 303用于接收使用者按键信息, 启动校准, 第三接口模块 303为人机接口模块;
测试信号发射模块 302用于在第三接口模块 303启动校准后,发射第一 频率的无线测试信号;
第三通讯模块 301用于通过第二频率的无线信号向移动终端的双频 SIM 卡 200发送校准通讯协议信息。
第三主处理模块 304用于协调校准器 300各部分的工作;
双频 S IM卡 200的第二通讯模块 101还可以用于接收校准通讯协议信息 , 并通知第一射频接收模块 202; 双频 SIM卡 200的第一射频接收模块 202还 可以用于根据该通知, 接收并检测第一频率无线测试信号的场强值, 然后将 该第一频率无线测试信号的场强值减去预设场强余量之后的差值作为刷卡 门限值并存储。
再如图 1所示, 读卡装置 100还可以包括距离检测模块 103 , 距离检测 模块 103与第一主处理模块 104相连,读卡装置 100还可以包括第一接口模 块 105 , 其中:
在移动终端未经校准时,移动终端中双频 SIM卡 200的第一射频接收模 块 202还可以用于在检测到读卡装置 100发射的第一频率的无线信号场强值 达到设定有效值后, 启动自动校准, 并通知第二通讯模块 201 , 以及在收到 距离检测模块 103的通知后检测接收到的第一频率的无线测试信号场强值, 将测该场强值减去预设场强余量之后的差值作为刷卡门限值存储于自身中; 第二通讯模块 201还可以用于在收到启动自动校准的通知后, 向读卡装 置 100的第一通讯模块 101发送自动校准请求;
读卡装置 100的第一通讯模块 101还可以用于在收到自动校准请求后, 通知距离检测模块 103检测移动终端与读卡装置 100之间的距离;
距离检测模块 103用于在收到第一通讯模块 101的通知后,检测移动终 端与读卡装置 100之间的距离, 同时搜索设定读卡范围内是否有已校准的移 动终端,若无则判断该未校准的移动终端与自身之间的距离是否小于设定的 校准距离,若小于则通知双频 S IM卡 200的第一射频接收模块 202检测接收 到的第一频率的无线测试信号场强值。
第一接口模块 105可以用于与电子消费终端(比如 pos机)相连, 接受 电子消费终端的控制。
再如图 2所示, 双频 S IM卡 200中还可以包括第二接口模块 203 , 第二 接口模块 203用于与双频 S IM卡 200所在移动终端的主板进行通信。
本发明移动支付系统不仅;肖除了对于具有移动支付功能的手机等移动 终端结构设计上的各种限制, 而且保证了移动支付过程中通信距离控制的准 确性, 因此有效地提高了移动支付的可靠性。
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. 一种移动支付的实现方法, 其特征在于, 包括以下步骤:
( a )具有双频 SIM卡的移动终端进入读卡装置的设定读卡范围内时, 所 述双频 SIM卡接收所述读卡装置发射的第一频率的无线测试信号, 并检测该 第一频率无线测试信号的场强, 所述双频 SIM卡具有移动支付功能;
( b )所述双频 SIM卡将所述第一频率无线测试信号的场强同自身存储 的刷卡门限值进行比较,若所述第一频率无线测试信号的场强大于所述刷卡 门限值, 则将自身的身份信息用第二频率的无线信号发送给所述读卡装置;
( c ) 所述读卡装置接收所述第二频率的无线信号, 获得所述双频 SIM 卡的身份信息, 再将该身份信息以第一频率信号发送出去;
( d )所述双频 SIM卡接收所述第一频率信号并从所述第一频率信号中 获取身份信息, 然后与自身存储的身份信息进行比较, 若一致则允许所述读 卡装置对自身进行刷卡操作。
2. 根据权利要求 1 所述的移动支付的实现方法, 其特征在于, 所述移 动终端在进行第一次移动支付之前先进行校准, 以设定该移动终端中双频 SIM卡的刷卡门限值, 所述校准包括以下步骤:
( 11 )未经校准的移动终端中的双频 SIM卡检测到所述读卡装置发射的 第一频率的无线测试信号场强值达到设定有效值后, 向所述读卡装置发送自 动校准请求;
( 12 )所述读卡装置收到所述自动校准请求后, 检测所述移动终端与自 身之间的距离, 同时搜索所述设定读卡范围内是否有已校准的移动终端, 若 无则判断所述移动终端与自身之间的距离是否小于设定的校准距离;
( 13 )若所述移动终端与自身之间的距离小于所述设定的校准距离, 则 所述读卡装置通知所述移动终端中的双频 S IM卡检测接收到的第一频率的无 线测试信号场强值;
( 14 )所述双频 S IM卡将测得的第一频率无线测试信号场强值减去预设 场强余量之后的差值作为自身的刷卡门限值存储于自身中。
3. 根据权利要求 1 所述的移动支付的实现方法, 其特征在于, 所述移 动终端在进行第一次移动支付之前先进行校准, 以设定该移动终端中双频 S IM卡的刷卡门限值, 所述校准包括以下步骤:
( 21 )在所述移动终端电源开启的情况下, 将所述移动终端放在校准器 上, 启动校准;
( 22 )所述校准器发射所述第一频率的无线测试信号, 通过所述第二频 率的无线信号向所述移动终端的双频 S IM卡发送校准通讯协议信息;
( 23 )所述移动终端的双频 S IM卡收到所述校准通讯协议信息后, 检测 接收到的所述第一频率无线测试信号的场强值;
( 24 )所述双频 S IM卡将测得的第一频率无线测试信号场强值减去预设 场强余量之后的差值作为自身的刷卡门限值存储于自身中。
4. 根据权利要求 2或 3所述的移动支付的实现方法, 其特征在于, 所 述移动终端校准后,所述移动终端的双频 S IM卡还存储所述移动终端的 IMEI 号, 用以在所述移动终端进行移动支付操作前判断是否需要校准, 具体为: 若所述双频 S IM卡中存储的 IMEI号与所述双频 S IM卡所在移动终端的 IMEI 号一致则不需校准, 否则需要校准。
5. 根据权利要求 1 所述的移动支付的实现方法, 其特征在于, 所述第 一频率处于高频 HF频段中,所述第二频率处于甚高频 VHF、特高频 UHF或超 高频 SHF频段中。
6. 一种移动支付系统, 其特征在于, 包括移动终端和读卡装置, 所述 移动终端中具有双频 S IM卡, 其中:
所述读卡装置包括第一主处理模块以及分别与该第一主处理模块相连 的第一射频发射模块和第一通讯模块, 其中:
所述第一射频发射模块, 用于发射第一频率的无线测试信号, 并将双频
SIM卡的身份信息以第一频率信号进行发送;
所述第一通讯模块, 用于接收所述双频 SIM卡发送的包含该双频 SIM卡 的身份信息的第二频率的无线信号, 获取所述身份信息, 并将该身份信息传 送给所述第一射频发射模块;
所述第一主处理模块, 用于对所述双频 SIM卡进行刷卡操作;
所述双频 S IM卡包括第二主处理模块以及与该第二主处理模块相连的第 一射频接收模块和第二通讯模块, 其中:
所述第一射频接收模块, 用于在所述双频 SIM卡进入所述读卡装置的设 定读卡范围内时, 接收所述第一频率的无线测试信号, 并检测该第一频率无 线测试信号的场强, 同自身存储的刷卡门限值进行比较, 并将比较结果通知 所述第二通讯模块,还用于接收所述读卡装置的第一频率信号并从该第一频 率信号中获取身份信息, 然后与自身存储的身份信息进行比较, 若一致则通 知所述第二主处理模块允许所述读卡装置进行刷卡操作;
所述第二通讯模块, 用于在所述比较结果为所述第一频率无线测试信号 的场强大于所述刷卡门限值时, 则将所述双频 SIM卡的身份信息用第二频率 的无线信号发送给所述读卡装置;
所述第二主处理模块, 用于根据所述第一射频接收模块的通知, 处理所 述读卡装置的刷卡操作。
7. 根据权利要求 6所述的移动支付系统, 其特征在于, 还包括校准器, 所述校准器包括第三主处理模块以及与该第三主处理模块相连的第三接口 模块、 测试信号发射模块和第三通讯模块, 其中:
所述第三接口模块, 用于接收使用者按键信息, 启动校准;
所述测试信号发射模块, 用于在所述第三接口模块启动校准后, 发射所 述第一频率的无线测试信号;
所述第三通讯模块,用于通过所述第二频率的无线信号向所述移动终端 的双频 SIM卡发送校准通讯协议信息;
所述双频 SIM卡的第二通讯模块, 还用于接收所述校准通讯协议信息, 并通知所述第一射频接收模块; 所述双频 SIM卡的第一射频接收模块, 还用 于根据所述通知, 接收并检测所述第一频率无线测试信号的场强值, 然后将 该第一频率无线测试信号的场强值减去预设场强余量之后的差值作为刷卡 门限值并存储。
8. 根据权利要求 6所述的移动支付系统, 其特征在于, 所述读卡装置 还包括距离检测模块,所述距离检测模块与所述第一主处理模块相连,其中: 在所述移动终端未经校准时, 所述移动终端中双频 S IM卡的第一射频接 收模块,还用于在检测到所述读卡装置发射的第一频率的无线信号场强值达 到设定有效值后, 启动自动校准, 并通知所述第二通讯模块, 以及在收到所 述距离检测模块的通知后检测接收到的第一频率的无线测试信号场强值,将 测该场强值减去预设场强余量之后的差值作为刷卡门限值存储于自身中; 所述第二通讯模块, 还用于在收到所述启动自动校准的通知后, 向所述 读卡装置的第一通讯模块发送自动校准请求;
所述读卡装置的第一通讯模块, 还用于在收到所述自动校准请求后, 通 知所述距离检测模块检测所述移动终端与所述读卡装置之间的距离;
所述距离检测模块, 用于在收到所述第一通讯模块的通知后, 检测所述 移动终端与所述读卡装置之间的距离, 同时搜索所述设定读卡范围内是否有 已校准的移动终端, 若无则判断所述移动终端与自身之间的距离是否小于设 定的校准距离,若小于则通知所述双频 SIM卡的第一射频接收模块检测接收 到的第一频率的无线测试信号场强值。
9. 根据权利要求 6 所述的移动支付系统, 其特征在于, 所述双频 SIM 卡中还包括第二接口模块, 用于与所述双频 S IM所在移动终端的主板进行通 信。
10.根据权利要求 6所述的移动支付系统, 其特征在于, 所述第一频率 处于高频 HF频段中, 所述第二频率处于甚高频 VHF、 特高频 UHF或超高频 SHF频段中。
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