WO2009109075A1 - Dispositif et procédé pour régler la distance de communication d'une carte sim radio - Google Patents

Dispositif et procédé pour régler la distance de communication d'une carte sim radio Download PDF

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Publication number
WO2009109075A1
WO2009109075A1 PCT/CN2008/001789 CN2008001789W WO2009109075A1 WO 2009109075 A1 WO2009109075 A1 WO 2009109075A1 CN 2008001789 W CN2008001789 W CN 2008001789W WO 2009109075 A1 WO2009109075 A1 WO 2009109075A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio frequency
sim card
power
communication distance
calibration device
Prior art date
Application number
PCT/CN2008/001789
Other languages
English (en)
Chinese (zh)
Inventor
王仁发
余运波
朱杉
Original Assignee
深圳市中兴集成电路设计有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市中兴集成电路设计有限责任公司 filed Critical 深圳市中兴集成电路设计有限责任公司
Publication of WO2009109075A1 publication Critical patent/WO2009109075A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/08—Interfaces between hierarchically different network devices between user and terminal device

Definitions

  • This invention relates to record carriers for use with machines, and more particularly to record carriers with semiconductor circuit components, and more particularly to apparatus and methods for calibrating the communication distance of a radio frequency SIM card. Background technique
  • SIM Subscriber Identity Model
  • mobile phones ordinary mobile phones
  • the radio frequency SIM card involved in the present invention is a mobile phone card having these functions, and is a mobile phone smart card with radio frequency wireless communication function after modifying a normal mobile phone SIM card.
  • the mobile smart card not only has all the functions of the conventional SIM card, but also has an interface for short-distance two-way data communication with other external processing devices.
  • the mobile phone can have both functions such as Card functions such as credit card, micro payment card, time card, etc., and the information generated during the card process can be directly seen on the cardholder's mobile phone screen, and the cardholder needs to complete the various items through the mobile phone keyboard. operating.
  • Card functions such as credit card, micro payment card, time card, etc.
  • the radio frequency SIM (Subscriber Identity Model) card of the present invention comprises a card body and a circuit in the card body; the card body is provided with an interface that can be matched with the mobile phone card holder, and the card circuit includes a CPU, a memory, and a radio frequency transceiver circuit. , RF transceiver antenna, the entire circuit is connected to the corresponding end of the interface. In this way, the whole circuit can start to work by first obtaining power from the mobile phone. Next, under the control of the CPU, the entire circuit can communicate with the mobile phone to realize the standard functions of the conventional SIM, and can also pass the RF transceiver circuit and the RF transceiver antenna. Communicate with the supporting peripheral processing device within a short distance. The communication content and process are specifically processed by the CPU in the card. If necessary, the CPU sends a command to the mobile phone through the data line on the SIM card holder of the mobile phone and uses a standard protocol to control the screen display of the mobile phone. keyboard input.
  • the memory referred to herein may also be included in the CPU to make the CPU and the memory an integral part; the memory in the card circuit stores an IMSI (international Mobile Subscriber Identification Number), and may also store other applications.
  • IMSI international Mobile Subscriber Identification Number
  • the RF transceiver antenna is a loop antenna or a dipole antenna or a spiral antenna or a whip antenna;
  • the function of the mobile phone smart card in the mobile phone is running software
  • the APDU protocol communicates with the mobile phone to control and use the screen, keyboard and other resources of the mobile phone through the STK (SIM card Tool Kit) function of the mobile phone.
  • STK SIM card Tool Kit
  • the mobile phone B with poor signal shielding effect is far away from the card reader, and when the two mobile phones are close to the card reader at the same time (the mobile phone A is close to the card reader, the mobile phone B is far away from the card reader), at this time If the card reader is outside the card reading operation distance of the mobile phone A, and within the reading distance of the mobile phone B, the actual operation is that the mobile phone B is performing the card reading operation, and it is considered that the distance should be the distance.
  • the recent mobile phone A is contrary to the phenomenon of reading the card; another example is that, for the mobile phone B in the above example, since the card reading distance is relatively long, when it passes near the card reader but does not need to read the card operation, Produces the behavior of a card reading operation, which results in an erroneous card reading operation.
  • the radio frequency SIM card according to the present invention is a SIM card applied to a mobile terminal such as a mobile phone, which works in a radio frequency band or even a higher frequency band, and is capable of performing communication and payment functions, and is based on an existing mobile phone SIM card. On the other, additional functions such as wireless payment, access control and attendance have been added.
  • the technical problem to be solved by the present invention is to avoid the above-mentioned deficiencies of the prior art and to provide an apparatus and method for calibrating the short-range wireless communication distance of a radio frequency SIM card.
  • the invention utilizes a radio frequency power calibration device to compare the value of the radio frequency SIM card in the mobile terminal with the calibration value set in the radio frequency power calibrator, and if the detected value is inconsistent with the calibration value, The power calibration device sends an instruction to request the radio frequency SIM card to change the transmit power until the requirements are met.
  • the transmission power of the radio frequency SIM card in different mobile phones is adjusted to be different, but the power when reaching the card reader is the same or the power is the same when the surface of the mobile phone is the same, thus achieving the solution.
  • the purpose of the problem is to be different, but the power when reaching the card reader is the same or the power is the same when the surface of the mobile phone is the same, thus achieving the solution.
  • a radio frequency power calibration device for calibrating the communication distance of a radio frequency SIM card, including a microcontroller MCU, a radio frequency transmitting and receiving modem, a radio frequency power detecting module, and an analog to digital conversion And RF antennas.
  • the RF antenna of the microcontroller is electrically connected to the RF power detection module and the RF transmitting and receiving modem respectively; the RF power detection module is electrically connected to the analog-to-digital converter; the analog-to-digital converter and the corresponding port of the microcontroller MCU are The bus is electrically connected; the RF transmitting and receiving modem and the corresponding port of the microcontroller MCU are electrically connected through the bus.
  • the instruction of the microcontroller MCU is modulated by the radio frequency transmitting and receiving modem into a radio frequency signal and then transmitted through the radio frequency antenna; the radio frequency power detecting module converts the radio frequency signal received from the radio frequency antenna into an analog voltage signal; the analog to digital converter The analog signal is converted into a digital signal and transmitted to the microcontroller MCU for comparison processing, and the relevant command is sent according to the comparison result to control the radio frequency SIM card to increase or decrease the transmission power to achieve the communication distance of the calibration SIM card.
  • the RF power calibration device has the same operating frequency as the RF SIM card.
  • the radio frequency power calibration device has the same communication protocol as the radio frequency SIM card device, and is capable of data exchange with each other.
  • the microcontroller MCU converts the command data through a radio frequency transmitting and receiving modem and transmits it to the radio frequency antenna.
  • the RF power detection module is configured to detect a power intensity of an external RF signal and convert it into an analog voltage signal; the analog to digital converter converts the analog voltage signal into a digital signal; the microcontroller MCU will Digital signals are processed.
  • the present invention solves the technical problem described above, and can further implement the following technical solutions, and a calibration
  • the method for communicating the distance of the radio frequency SIM card is based on creating a radio frequency power calibration device for calibrating the communication distance of the radio frequency SIM card, and the method includes the following steps in sequence:
  • the RF power calibration device sends an instruction to the RF SIM card, and the RF SIM card receives the command of the power calibration device, and continuously transmits power;
  • the RF power calibration device detects the power transmitted by the RF SIM card and performs correlation calculation to convert into a voltage value.
  • step B if the judgment result is "Yes", that is, the operation result is greater than or equal to the set value, it is further determined whether the operation result is greater than or equal to the calibration value, and if it is determined that the calculation result is greater than the calibration value, the RF power calibrator Sending an instruction to the radio frequency SIM card, reducing the radio frequency SIM card transmission power, and returning to step D;
  • step F if it is determined that the calculation result is equal to the calibration value, it indicates that the radio frequency SIM card satisfies the power transmission requirement, and the process of calibrating the short-range wireless communication distance of the radio frequency SIM card is completed.
  • the method works in the SHF band, the VHF band or the UHF ultra-high band.
  • the calibration value in the RF power calibration device described in step A can be changed.
  • FIG. 1 is a working principle diagram of a method for calibrating a communication distance of a radio frequency SIM card according to the present invention
  • 2 is an internal logic block diagram of a radio frequency power calibration apparatus
  • 3 is a flow chart showing the operation of the method for calibrating the communication distance of the radio frequency SIM card of the present invention. detailed description
  • the apparatus includes a microcontroller MCU 200, a radio frequency transmitting and receiving modem 201, and a radio frequency power detecting module 202, which is a radio frequency power calibration apparatus 100 for calibrating a radio frequency SIM card 104.
  • Analog to digital converter 203 and radio frequency antenna 204 As shown in FIG. 2 , the apparatus includes a microcontroller MCU 200, a radio frequency transmitting and receiving modem 201, and a radio frequency power detecting module 202, which is a radio frequency power calibration apparatus 100 for calibrating a radio frequency SIM card 104. Analog to digital converter 203 and radio frequency antenna 204. As shown in FIG.
  • the microcontroller radio frequency antenna 204 is electrically connected to the radio frequency power detecting module 202 and the radio frequency transmitting and receiving modem 201, respectively; the radio frequency power detecting module 202 is electrically connected to the analog to digital converter 203; The digital converter 203 is electrically connected to the corresponding port of the microcontroller MCU 200 via a bus; the corresponding port of the RF transmitting and receiving modem 201 and the microcontroller MCU 200 is electrically connected through the bus.
  • the instruction of the microcontroller MCU 200 is modulated into a radio frequency signal by the radio frequency transmitting and receiving modem 201 and then transmitted through the radio frequency antenna 204.
  • the radio frequency power detecting module 2 G2 converts the radio frequency signal received from the radio frequency antenna 201 into an analog voltage signal.
  • the analog-to-digital converter 203 converts the analog signal into a digital signal and transmits it to the microcontroller MCU 200 for comparison processing, and sends a relevant command according to the comparison result to control the radio frequency SIM card 104 to increase or decrease the transmission power to implement calibration of the SIM card. Communication distance.
  • the RF power calibration device 100 has the same operating frequency as the RF SIM card 104.
  • the RF power calibration device 100 and the RF SIM card 104 device have the same communication protocol and are capable of data exchange with each other.
  • the microcontroller MCU 200 converts the command data through the RF transmitting and receiving modem 201 and transmits it to the RF antenna 204.
  • the RF power detecting module 202 is configured to detect the power intensity of the external RF signal. Converting it to an analog voltage signal; the analog to digital converter 203 converts the analog voltage signal into a digital signal; the microcontroller MCU 200 processes the digital signal.
  • the working principle diagram of the radio frequency power calibration apparatus 100 when controlling the transmission power of the radio frequency SIM card 104 can refer to FIG. 1.
  • the radio frequency power detection module 202 in the radio frequency power calibration apparatus 100 detects the power transmitted from the radio frequency SIM card 104, and then performs correlation. Processing, and transmitting the relevant operation instruction to the radio frequency SIM card 104 through the microcontroller MCU 200, to implement the transmission power control of the radio frequency SIM card 104.
  • the technical solution may further provide a method for calibrating the short-range wireless communication distance of the radio frequency SIM card 104, based on creating a communication distance of the calibration radio frequency IM card 104.
  • the RF power calibration apparatus 100 comprising the following steps, as shown in FIG. 3:
  • the mobile terminal 102 with the built-in RF SIM card 104 is placed in an assumed position in the sensing area of the RF power calibration apparatus 100;
  • the radio frequency power calibration apparatus 100 sends an instruction to the radio frequency SIM card 104, and the radio frequency SIM card 104 receives the instruction of the power calibration apparatus 100 to continuously transmit power.
  • the radio frequency power calibration apparatus 100 detects the power transmitted by the radio frequency SIM card 104, and performs correlation calculation to convert into a voltage value, and performs the next step;
  • step 304 of FIG. 3 it is determined whether the operation result in the radio frequency power calibration apparatus 100 is greater than or equal to the calibration value described in step A. If the determination result is "NO", the operation result is less than the calibration value, and the radio frequency power is The calibrator 100 sends an instruction to the radio frequency SIM card 104 to increase the transmit power of the radio frequency SIM card 104 and returns to step D.
  • step E if the determination result is "Yes", that is, the operation result is greater than or equal to the set value, it is further determined whether the operation result is greater than or equal to the calibration value, and if it is determined as the operation result Greater than the calibration value, the RF power calibrator 100 sends an instruction to the radio frequency SIM card 104, reducing the radio frequency SIM card 104 transmit power, and returns to step D;
  • step F if the determination is "NO”, the operation result is equal to the calibration value, indicating that the radio frequency SIM card 104 satisfies the power transmission requirement, and the short-range wireless communication distance of the radio frequency SIM card 104 is completed. process.
  • the method works in the SHF band, the VHF band or the UHF ultra-high band.
  • the method is to calibrate the short-range wireless communication distance of the radio frequency SIM card 104, and the different mobile terminals 102 with the built-in radio frequency SIM card 104 must be placed in the same assumed position in the sensing area described in step B, by the present invention.
  • the method for calibrating the short-range wireless communication distance of the radio frequency SIM card 104 is such that when the radio frequency SIM card 104 in different mobile phones is at the same distance from the sensing area of the card reader, the power when reaching the card reader is the same or The power on the surface of the phone is the same, so that different phones maintain the same card reading distance.
  • the calibration value in the RF power calibration device 100 described in step A can be changed.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un dispositif et un procédé pour régler la distance de communication d'une carte SIM radio, ledit dispositif comprenant : un microcontrôleur MCU (200), un modem d'émission et de réception radio (201), un module de détection de puissance radio (202), un convertisseur A/N (203) et une antenne radio. Ledit procédé comprend les étapes de : définition d'une valeur de réglage sur le dispositif de réglage de puissance radio ; le dispositif de réglage de puissance radio envoie une commande à la carte SIM radio et reçoit la puissance envoyée par la carte SIM radio, et compare la puissance à la valeur de réglage définie ; le dispositif de réglage de puissance radio envoie une commande adéquate à la carte SIM radio pour augmenter ou diminuer la puissance envoyée par la carte SIM radio, jusqu'à ce qu'elle devienne entièrement équivalente à la valeur de réglage. L'utilisation du procédé de réglage de l'invention peut éliminer les différentes influences d'effet d'écran générées par le terminal mobile pour le signal de la carte SIM radio, et permet aux différents terminaux mobiles d'avoir la même distance de lecture de carte.
PCT/CN2008/001789 2008-03-04 2008-10-23 Dispositif et procédé pour régler la distance de communication d'une carte sim radio WO2009109075A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810065531.3 2008-03-04
CN2008100655313A CN101330334B (zh) 2008-03-04 2008-03-04 一种用于校准射频sim卡通信距离的装置及方法

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Publication Number Publication Date
WO2009109075A1 true WO2009109075A1 (fr) 2009-09-11

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Families Citing this family (14)

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CN101996301B (zh) * 2009-08-24 2012-10-03 国民技术股份有限公司 通讯距离的控制方法及射频读卡装置
CN102065172B (zh) * 2009-11-16 2013-08-07 东信和平科技股份有限公司 应用红外线测距控制射频sim卡通讯距离的方法和装置
CN102193091B (zh) * 2010-03-10 2014-06-18 国民技术股份有限公司 一种近场距离判断装置和方法
CN102196605B (zh) * 2010-03-15 2014-02-26 国民技术股份有限公司 移动射频装置、射频ic卡及射频存储卡
CN101902284B (zh) * 2010-04-02 2012-10-24 深圳市普联技术有限公司 一种通信参数校准方法和装置
CN103023445B (zh) * 2010-05-10 2015-09-09 国民技术股份有限公司 一种用于低频信号检测及传输系统的差分模拟前端装置
CN102244530B (zh) * 2010-05-10 2013-12-18 国民技术股份有限公司 一种近距离通信方法及系统
CN102055539A (zh) * 2010-12-28 2011-05-11 大唐移动通信设备有限公司 仪表输出信号的自动化校准方法及设备
CN102810146B (zh) * 2011-05-31 2016-06-15 中兴通讯股份有限公司 一种电子标签及其功率校准方法、校准设备及校准系统
CN102324991B (zh) * 2011-08-16 2013-11-06 惠州Tcl移动通信有限公司 一种校准移动终端发射gsm频段功率的方法
CN102790649B (zh) * 2011-08-23 2016-03-30 深圳中科讯联科技有限公司 调测射频sim卡和射频读卡器通信距离的装置及方法
CN102955955A (zh) * 2011-08-25 2013-03-06 深圳光启高等理工研究院 一种基于倏逝波的移动通讯系统及方法
CN105101373B (zh) * 2014-05-07 2019-04-19 神讯电脑(昆山)有限公司 电子装置及天线发射功率调整方法
CN106353585A (zh) * 2016-10-20 2017-01-25 成都前锋电子仪器有限责任公司 一种用于射频功率反射计的数据处理电路

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CN101330334B (zh) 2011-08-10
CN101330334A (zh) 2008-12-24

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