WO2010012129A1 - 利用探测器阵列实现可靠近距离通信的系统和方法 - Google Patents

利用探测器阵列实现可靠近距离通信的系统和方法 Download PDF

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Publication number
WO2010012129A1
WO2010012129A1 PCT/CN2008/001748 CN2008001748W WO2010012129A1 WO 2010012129 A1 WO2010012129 A1 WO 2010012129A1 CN 2008001748 W CN2008001748 W CN 2008001748W WO 2010012129 A1 WO2010012129 A1 WO 2010012129A1
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Prior art keywords
radio frequency
detector
communication
mobile terminal
distance
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PCT/CN2008/001748
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English (en)
French (fr)
Inventor
余运波
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深圳市中兴集成电路设计有限责任公司
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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 WO2010012129A1 publication Critical patent/WO2010012129A1/zh
Priority to US12/949,453 priority Critical patent/US8929805B2/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves

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 a system and method for controlling the radio frequency communication distance of a mobile terminal. Background technique
  • the radio frequency communication terminal (hereinafter referred to as "mobile phone") has been popularized, and it has become more and more demanding to realize functions such as mobile payment by transforming it to have a short-distance communication function.
  • the user identification module SIM card has been added.
  • RF function (becoming a radio frequency SIM) or adding a short-range communication module on the mobile phone motherboard to realize the method of short-distance communication of the mobile phone.
  • the appearance of this method makes the mobile phone become a super intelligent terminal that can be recharged, consumed, traded and authenticated.
  • the earth meets the urgent needs of the market.
  • the RF SIM-based mobile phone short-range communication solution has gained wide attention because of its simplicity and no need to change the mobile phone.
  • the RF SIM adopts UHF or VHF technology to make the RF signal can be transmitted from the mobile phone, thereby realizing
  • the mobile phone can be equipped with short-range communication without modifying the mobile phone.
  • some mobile phones have high transmission intensity due to poor shielding performance, and their communication distance can reach about 1 meter.
  • some mobile phones have excellent shielding effect and RF signals cannot be transmitted. When it comes out, it is impossible to send and receive data normally, and it is impossible to complete the transaction. It is very difficult to accurately control the distance covered by the RF signal in the face of so many types of mobile phones.
  • the existing technology for controlling the distance of radio frequency communication so that it does not exceed the specified value is only passive sensing technology, such as the non-contact card technical specification specified in the IS014443 protocol, or the RFID technical specification specified by IS018000. These technologies are characterized by no card side. The source can only work by sensing the energy from the reader side coupling to achieve communication with the card reader.
  • the RF SIM-based mobile phone short-range communication uses an active mode, and basically uses the UHF band, which makes it impossible to use passive technology to control the communication distance, because the UHF band RF signal has strong penetration. Ability, its distance control problem is more prominent.
  • the radio frequency SIM-based mobile phone short-range communication adopts an active mode, and basically uses In the UHF band, passive technology cannot be used to control its communication distance;
  • the method of adjusting the radio frequency signal emission intensity of the mobile phone and the receiving sensitivity of the card reader is affected by various factors such as standing wave and signal reflection, and it is difficult to achieve reliable short-range communication.
  • the prior art adopts methods such as adjusting the radio frequency signal emission intensity of the mobile phone and the receiving sensitivity of the card reader to control the communication distance.
  • this method is difficult to achieve reliable short-range communication due to various factors such as standing wave and signal reflection.
  • the invention provides a simple and low-cost solution, which can reliably control the data communication distance between the radio frequency communication terminal and the radio frequency communication device within a set distance range, thereby ensuring the security of the transaction; From the ⁇ to ensure the reliability of communication. Summary of the invention
  • the technical problem to be solved by the present invention is to avoid a disadvantage of the above prior art and to propose a system and method for controlling the radio frequency communication distance of a mobile terminal.
  • the invention provides a simple and low-cost solution, which can reliably control the data communication distance between the radio frequency communication terminal and the radio frequency communication device within a set distance range, thereby ensuring the security of the transaction; Fundamentally ensure the reliability of communication.
  • the invention provides a system for realizing proximity-to-distance communication by using a detector array, comprising a radio frequency mobile terminal and a radio frequency control terminal including a radio frequency SIM card;
  • the radio frequency control terminal detects the communication state of the radio frequency mobile terminal through the detector array, and analyzes the detection result to determine the communication distance of the radio frequency mobile terminal.
  • the radio frequency control terminal includes a card reader.
  • the detector array includes antennas or coupling structures with different gain and radiation characteristics to aid in achieving different receive gains by adjusting the detector's problems.
  • the detector array comprises a set of beacon detectors, a set of minimum scale detectors and at least one set of scale detectors, each set of detectors comprising at least one detector, each detector having a corresponding amplifier and attenuator, adjusting the amplifier And the parameter value of the attenuator can achieve the purpose of increasing the magnification of the detector array.
  • the attenuator parameter values will be emitted by each set of detectors in the remaining groups of the detector array
  • the power gain and the receiving sensitivity are adjusted to a unique corresponding value between A1 and A2, and used as a scale detector to determine the approximate range of distance of the RF mobile terminal.
  • the beacon detector and the scale detector can be combined into one group.
  • the magnification of the beacon detector, the minimum scale detector, and the scale detector can be determined based on test data or experience, and can be achieved by adjusting the parameter values of the amplifier and the attenuator.
  • the present invention solves the technical problem by adopting the following technical solutions: Providing a method for realizing proximity-to-distance communication by using a detector array, based on a system for realizing close-to-distance communication by using a detector array, the system including the embedded
  • the radio frequency mobile terminal and the radio frequency control terminal of the radio frequency SIM card include steps:
  • the RF mobile terminal to be tested first communicates with the RF control terminal through the beacon detector, and informs the RF control terminal of the communication status database stored therein, and the RF control terminal will according to the parameter values corresponding to each group of detectors in the database. Adjust the magnification;
  • the RF mobile terminal communicates with each group of detectors of the RF control terminal at a certain test distance, and records the test results;
  • the test distance described in step A is the communication distance between the radio frequency mobile terminal and the radio frequency control terminal, and can be freely selected according to actual conditions.
  • the detector array further includes a limit detector to ensure that the radio frequency mobile terminal cannot communicate with the radio frequency control terminal at a certain target distance to ensure the communication distance is safe.
  • DRAWINGS Figure 1 is a schematic view showing the composition of the system of the present invention.
  • FIG. 2 is a composition diagram of an RF control terminal and a detector array of the present invention
  • Embodiment 3 is a communication state database of a radio frequency mobile terminal according to Embodiment 1 of the method of the present invention.
  • the system 10 for implementing proximity-to-distance communication using the detector array, as shown in FIG. 1, includes a radio frequency mobile terminal 12 and a radio frequency control terminal 13 including a radio frequency SIM card 11;
  • the radio frequency control terminal 13 detects the communication state of the radio frequency mobile terminal 12 through the detector array 131, and analyzes the detection result to determine the communication distance of the radio frequency mobile terminal 12.
  • the radio frequency mobile terminal 12 includes a mobile terminal including a radio frequency SIM card 11; the radio frequency control terminal 13 includes a card reader.
  • detector array 131 includes antennas or coupling structures having different gain and radiation characteristics that assist in achieving different receive gains by adjusting the position of the detector.
  • the detector array 131 includes a set of beacon detectors 1311, a set of minimum scale detectors 1313, and at least one set of scale detectors 1312, each set of detectors including at least one detector, each The detector has a corresponding amplifier and attenuator, and the parameter values of the amplifier and the attenuator can be adjusted to increase the amplification factor of the detector array 131.
  • the preferred embodiment of the present invention employs a set of beacon detectors 1311, a set of minimum scale detectors 1313, and three sets of scale detectors 1312, which can be adjusted by adjusting corresponding amplifiers and attenuators. And receiving sensitivity.
  • the parameter values of the amplifier and the attenuator adjust the amplification factor of the other detector of the detector array 131 to a smaller value A2 as the minimum scale detector 1313, so that the RF mobile terminal 12 can communicate with it when it is very close. ;
  • the parameter values of the amplifier and the attenuator are adjusted, and the amplification factor of each group of detectors in the remaining groups of the detector array 131 is adjusted to a unique corresponding value between A1 and A2, as the scale detector 1312, for The approximate range of distance of the radio frequency mobile terminal 12 is determined.
  • the magnification of the minimum scale detector 1313 is adjusted to 0.2 times the magnification of the minimum scale detector 1313 is 0. 2 times, the magnification of the minimum scale detector 1313 is adjusted to 0.2 times
  • the magnification of the beacon detector 1311 is adjusted to 1 time, and the greater the transmission power of the scale detector, the farther the communication distance with the radio frequency mobile terminal 12 can be.
  • the beacon detector 1311 and the scale detector 1312 may be combined into one group.
  • the magnification of the beacon detector 1311, the minimum scale detector 1313, and the scale detector 1312 can be determined based on test data or experience, and can be implemented by parameter values of the amplifier and the attenuator.
  • the present invention solves the technical problem by adopting the following technical solutions: Providing a method for realizing proximity-to-distance communication by using a detector array, based on utilizing a detector array to implement a close-to-distance communication system 10, the system including The radio frequency mobile terminal 12 and the radio frequency control terminal 13 including the radio frequency SIM card 11 are as shown in FIG.
  • the RF mobile terminal 12 to be tested first communicates with the radio frequency control terminal 13 through the beacon detector 1311, as shown in step 402, and informs the radio frequency control of the communication status database stored therein.
  • the terminal 13, the radio frequency control terminal 13 will adjust the parameter values of the amplifier and the attenuator according to the parameter values corresponding to each group of detectors in the database, the process parameter step 403;
  • the radio frequency mobile terminal 12 communicates with each group of detectors 131 of the radio frequency control terminal 13 at a certain test distance, and records the test results, and judges whether all the detectors complete the test, such as Step 405 is shown;
  • step 406 the actual test result is compared with the case recorded in the communication status database, thereby determining the approximate range of the communication distance between the radio frequency mobile terminal 12 and the radio frequency control terminal 13.
  • each type of mobile terminal is respectively at each test distance, as shown in FIG. 2, and this embodiment respectively tests that the radio frequency mobile terminal 12 is 0CM, 2CM, 5CM from the radio frequency control terminal 13 respectively.
  • Each of the detector status information at 10CM, 15CM, 20CM, 30CM, and 50CM, the status information includes whether or not the radio frequency mobile terminal 12 can communicate with each detector at a magnification of the distance.
  • the T N2008/001748 state information library is simultaneously written to the corresponding radio frequency mobile terminal 12 so that they can pre-transmit the information base to the radio frequency control terminal 13 when establishing communication.
  • step C when the radio frequency mobile terminal 12 to be tested is placed at a certain distance and communicates with the radio frequency control terminal 13 by a certain distance, the radio frequency mobile terminal 13 sends the established state database to the radio frequency control terminal 13 .
  • the radio frequency control terminal 13 adjusts the amplification factor of the detector.
  • steps 404 and 405 of FIG. 4 it is tested whether it can communicate with the radio frequency mobile terminal 12.
  • all the detectors are compared with the received communication status database after the test is completed. If the result of the recording is 5 CM scale detector, 2CM scale detector and minimum scale detector can communicate, then check The communication status database table shows that the current distance of the mobile radio communication terminal is 5 CM.
  • the test distance described in step A is the communication distance between the radio frequency mobile terminal 12 and the radio frequency control terminal 13, and can be freely selected according to actual conditions.
  • the detector array 1 31 further includes a limit detector to ensure that the RF mobile terminal 12 cannot communicate with the RF control terminal 13 at a certain target distance to ensure the security of the communication.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

利用探测器阵列实现可靠^巨离通信的系统和方法 技术领域
本发明涉及连同机器一起使用的记录载体， 特别涉及带有半导体电路元件的记 录载体， 尤其涉及一种控制移动终端射频通信距离的系统和方法。 背景技术
射频通信终端（以下简称 "手机"） 巳经普及， 通过改造使其具备近距离通信功 能， 以实现手机支付等功能的需求越来越强烈， 目前已经出现了在用户识別模块 SIM 卡上增加射频功能 （成为射频 SIM )或者在手机主板上增加近距离通信模块来实现 手机近距离通信的方法， 这种方法的出现使得手机成为一个可以充值、 消费、 交易 及身份认证的超级智能终端， 极大地满足市场的迫切需求。
其中， 基于射频 SIM的手机近距离通信解决方案以其简单、 无需更改手机等优 势得到广泛的关注， 在该方案中， 射频 SIM采用 UHF或 VHF技术使得射频信号可以 从手机中透射出来， 从而实现不改造手机就可使得手机具备近距离通信功能。但是， 由于不同手机屏蔽效果差距很大， 有的手机因为屏蔽效果不好其射频信号透射强度 大， 其通信距离甚至可以达到 1米左右， 而有的手机因为屏蔽效果特別好， 射频信 号不能透射出来， 造成不能正常收发数据， 不能完成交易， 面对如此多的手机种类 要都能做到精确地控制射频信号覆盖的距离十分困难。
实际生活中的许多应用， 尤其是公交刷卡， 对于交易的有效距离范围控制提出 了严格的要求， 过长的距离 （如 10CM以上）会带来很大的安全隐患， 因此， 手机在 增加近距离通信功能的同时， 还必须能够有效控制其交易的有效距离范围。
现有针对射频通信的距离进行控制， 使其不超过规定值的技术只有被动感应技 术， 如 IS014443协议规定的非接触卡技术规范， 或者 IS018000规定的 RFID技术规 范， 这些技术的特点是卡侧无源的， 只能通过感应的方式从读卡器侧耦合获得能量 来工作， 从而实现与读卡器之间的通信。 而基于射频 SIM的手机近距离通信采用的 是有源方式， 且基本上使用的是 UHF频段， 这就导致其无法使用无源技术来控制通 信距离， 由于 UHF频段射频信号具备很强的穿透能力， 其距离控制问题更加突出。
上述现有技术控制移动终端射频通信距离的方法存在以下不足：
1、 基于射频 SIM的手机近距离通信的采用的是有源方式， 且基本上使用的是 UHF频段， 无法使用无源技术来控制其通信距离；
2、 采用调整手机射频信号发射强度及读卡器接收灵敏度等方法枣控制通信距 离的方法受驻波、 信号反射等多种因素的影响， 难以实现可靠的近距离通信。
针对这个问题， 现有技术采用调整手机射频信号发射强度及读卡器接收灵敏度 等方法来控制通信距离， 但此方法由于驻波、 信号反射等多种因素的影响难以实现 可靠的近距离通信。 本发明提出一种简单易行、 低成本的解决方案， 该方案可以使 得射频通信终端与射频通信设备的数据通信距离可靠地控制在设定的距离范围内 , 从而保证了交易的安全； 还能从 ~本上确保通信的可靠。 发明内容
本发明要解决的技术问题在于避免上述现有技术的不足之处而提出一种控制移 动终端射频通信距离的系统和方法。
本发明提出一种简单易行、 低成本的解决方案， 该方案可以使得射频通信终端 与射频通信设备的数据通信距离可靠地控制在设定的距离范围内， 从而保证了交易 的安全； 还能从根本上确保通信的可靠。
本发明提供了一种利用探测器阵列实现可靠近距离通信的系统， 包括内含射频 SIM卡的射频移动终端和射频控制终端；
所迷射频控制终端通过探测器阵列检测射频移动终端的通信状态， 并对检测结 果进行分析， 从而判断射频移动终端的通信距离。
所述射频控制终端包括读卡器。
探测器阵列包括具有不同增益及辐射特性的天线或耦合结构 , 通过调整探测器 的问题来辅助实现不同的接收增益。
所述探测器阵列包含一组信标探测器、一组最小刻度探测器和至少一組刻度探 测器， 每组探测器至少包括一个探测器， 每个探测器有对应放大器及衰减器， 调整 放大器及衰减器的参数值可达到增加探测器阵列的放大倍数的目的。
调整放大器及衰减器的参数值将探测器阵列其中一組探测器的放大倍数调至 一较大值 A1 , 作为信标探测器， 用于首先与射频移动终端进行通信；
调整放大器及衰减器的参数值将探测器阵列其中另一組探测器的放大倍数至 一较小值 A2 , 作为最小刻度探测器， 使射频移动终端在非常接近时才能与之通信； 调整放大器及衰减器的参数值将探测器阵列其余各组中的每組探测器的发射 功率增益和接收灵敏度调至介于 A1和 A2间的唯一对应数值， 作为刻度探测器， 用 于判断射频移动终端大致的距离范围。
所述信标探测器和刻度探测器可合为一组。
所述信标探测器、 最小刻度探测器和刻度探测器的放大倍数可以根据试-验数据 或者经验来确定， 可通过调整放大器及衰减器的参数值实现。
本发明解决所述技术问题可以通过采用以下技术方案来实现： 提供一种利用探 测器阵列实现可靠近距离通信的方法， 基于利用探测器阵列实现可靠近距离通信的 系统， 所述系统包括内含射频 SIM卡的射频移动终端和射频控制终端， 包括步骤：
A. 通过试验为每一类型射频移动终端建立其通信状态数据库， 所述数据库包括 各组探测器在每个试脸距离上是否可以与所述射频移动终端进行通信以及在 该距离上各探测器放大倍数；
B. 将所述通信状态数据库写入射频移动终端或射频 SIM卡内， 作为射频移动终 端自身通信状态数据库；
C 待测试射频移动终端首先通过信标探测器与射频控制终端进行通信， 并将存 储在其内的通信状态数据库告知射频控制终端， 射频控制终端将根据数据库 中各组探测器对应的参数值来调整放大倍数；
D. 射频移动终端在某个测试距离与射频控制终端的各组探测器进行通信， 并将 测试结果记录下来；
E. 将实际的测试结果和通信状态数据库记录的情况进行比较，进而判断射频移 动终端与射频控制终端的通信距离的大致范围。
步骤 A所述的试验距离为射频移动终端与射频控制终端之间的通信距离， 可以 根据实际情况自由选择。
所述探测器阵列还包括限位探测器， 用以确保射频移动终端在某个目标距离时 不能与射频控制终端进行通信， 以保证通信距离的安全。
同现有技术相比较， 本发明的有益效果在于：
1 > 本发明所述方案简单易行、 成本低；
2、本发明所述方案可以使得射频通信终端与射频通信设备的数据通信距离可靠 地控制在近场范围内， 保证了交易的安全， 还能从根本上确保通信的可靠。 附图说明 图 1是本发明所述系统组成示意图；
图 2是本发明之射频控制终端与探测器阵列组成图；
图 3是本发明方法实施例一之射频移动终端通信状态数据库；
图 4是本发明方法距离判断流程图。 具体实施方式
以下结合附图所示之最佳实施例作进一步详述。
本发明之利用探测器阵列实现可靠近距离通信的系统 10, 如图 1所示， 包括内 含射频 SIM卡 11的射频移动终端 12和射频控制终端 13;
所述射频控制终端 13通过探测器阵列 131检测射频移动终端 12的通信状态， 并对检测结果进行分析， 从而判断射频移动终端 12的通信距离。
所述射频移动终端 12包括含射频 SIM卡 11的移动终端；所述射频控制终端 13 包括读卡器。
如图 2所示，探测器阵列 131包括具有不同增益及辐射特性的天线或耦合结构， 通过调整探测器的位置来辅助实现不同的接收增益。
如图 2所示， 所述探测器阵列 131包含一组信标探测器 1311、一组最小刻度探 测器 1313和至少一組刻度探测器 1312 , 每组探测器至少包括一个的探测器， 每个 探测器有对应放大器及衰减器， 调整放大器及衰减器的参数值可达到增加探测器阵 列 131的放大倍数的目的。
如图 2所示， 本发明优先实施例采用一组信标探测器 1311、 一组最小刻度探测 器 1313和三组刻度探测器 1312， 可以通过调整对应的放大器及衰减器调整他们的 发射功率增益和接收灵敏度。
调整放大器及衰减器的参数值， 将探测器阵列 131其中一组探测器的放大倍数 调至一较大值 A1 , 作为信标探测器 1311 , 用于首先与射频移动终端 12进行通信； 再调整放大器及衰减器的参数值， 将探测器阵列 131其中另一组探测器的放大 倍数调至一较小值 A2 , 作为最小刻度探测器 1313, 使射频移动终端 12在非常接近 时才能与之通信；
其后又调整放大器及衰减器的参数值， 将探测器阵列 131其余各组中的每组探 测器的放大倍数调至介于 A1和 A2间的唯一对应数值， 作为刻度探测器 1312 , 用于 判断射频移动终端 12大致的距离范围。 如图 1所示， 将三组的刻度探测器 1312的放大倍数分别调整为 0. 3倍、 0. 4倍 和 0. 5倍； 将最小刻度探测器 1313的放大倍数调整成 0. 2倍； 将信标探测器 1311 放大倍数调整至 1倍， 刻度探测器的发射功率越大， 能与射频移动终端 12的通信距 离就越远。
所述信标探测器 1311和刻度探测器 1312可合为一组。
所述信标探测器 1311、最小刻度探测器 1313和刻度探测器 1312的放大倍数可 以根据试驺数据或者经验来确定， 可通过整放大器及衰减器的参数值实现。
本发明解决所述技术问题可以通过采用以下技术方案来实现： 提供一种利用探 测器阵列实现可靠近距离通信的方法， 基于利用探测器阵列实现可靠近距离通信的 系统 10, 所述系统包括内含射频 SIM卡 11的射频移动终端 12和射频控制终端 13, 如图 4所示， 包括步骤：
A. 通过试验为每一类型射频移动终端 12建立其通信状态数据库， 所述数据库 包括各組探测器 （131 )在每个试验距离上是否可以与所述射频移动终端 12进行通 信以及在该距离上的各探测器的放大倍数；
B. 将所述通信状态数据库写入所述射频移动终端 12或射频 SIM卡 11 内， 作 为该射频移动终端 12 自身通信状态数据库；
C. 如图 4步骤 401所示， 待测试射频移动终端 12首先通过信标探测器 1311 与射频控制终端 13进行通信， 如步骤 402所示， 并将存储在其内的通信状态数据库 告知射频控制终端 13 , 射频控制终端 13将根据数据库中各组探测器对应的参数值 来调整其放大器及衰减器的参数值， 该过程参数步骤 403;
D. 如步骤 404所示， 射频移动终端 12在某个测试距离与射频控制终端 13的 各组探测器 131进行通信， 并将测试结果记录下来， 并就是否全部探测器完成测试 进行判断， 如步骤 405所示；
E. 如步骤 406 所示， 将实际的测试结果和通信状态数据库记录的情况进行比 较，进而判断射频移动终端 12与射频控制终端 13的通信距离的大致范围。
在进行 A所述的步骤时， 将每一类型的移动终端分别在各个试验距离， 如图 2 所示， 本实施例分别测试了射频移动终端 12在距离射频控制终端 13为 0CM、 2CM、 5CM、 10CM、 15CM、 20CM、 30CM和 50CM时各个探测器状态信息， 该状态信息包括是 否可以与射频移动终端 12进行通信、 该距离上的各个探测器放大倍数。
射频控制终端 13为每一种射频移动终端 12建立好他们的状态信息库后， 将状 T N2008/001748 态信息库同时在写入对应射频移动终端 12 , 以便他们在建立通信时可以将该信息库 预先发送给射频控制终端 13。
步糠 C 中， 将待测试的射频移动终端 12放在某个距离与某个距离与射频控制 终端 13进行通信时， 射频移动终端 13将自身已经建立好的状态数据库发送给射频 控制终端 13 , 射频控制终端 13在收到射频移动终端 12发过来的状态信息库后， 就 调整探测器的放大倍数， 如图 4步骤 404和 405所示， 再测试其是否可以与射频移 动终端 12进行通信， 如图 4步骤 406所示， 所有的探测器测试完毕后再与收到的通 信状态数据库进行比较， 假如记录结果是 5 CM刻度探测器、 2CM刻度探测器以及最 小刻度探测器可以通信， 那么查通信状态数据库表可知目前移动射频通信终端的大 致距离为 5CM。
步骤 A所述的试验距离为射频移动终端 12与射频控制终端 1 3之间的通信距离， 可以根据实际情况自由选择。
所述探测器阵列 1 31还包括限位探测器，用以确保射频移动终端 12在某个目标 距离时不能与射频控制终端 13进行通信， 以保证通信 3巨离的安全。
上述实现过程为本发明的优先实现过程， 本领域的技术人员在本发明的基础上 进行的通常变化和替换包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1、 一种利用探测器阵列实现可靠近距离通信的系统（10 ), 其特征在于， 包括 内含射频 SIM卡（11 ) 的射频移动终端 （12 )和射频控制终端 （13 );
所述射频控制终端（ 13 )通过探测器阵列 （ 131 )检测射频移动终端（ 12 )的通 信状态， 并对检测结果进行分析， 从而判断射频移动终端 （12 ) 的通信距离。
2、如权利要求 1所述的利用探测器阵列实现可靠近距离通信的系统， 其特征在 于：
所述的射频控制终端 （13 ) 包括读卡器。
3、 如权利要求 1所述的利用探测器阵列实现可靠近距离通信的系统， 其特征在 于：
探测器阵列（131 )包括具有不同增益及辐射特性的天线或耦合结构， 通过调整 探测器的位置来辅助实现不同的接收增益。
4、如权利要求 1所述的利用探测器阵列实现可靠近距离通信的系统， 其特征在 于：
所述探测器阵列（ 131 )包含一组信标探测器（ 1311 )、一組最小刻度探测器（ 1313 ) 和至少一组刻度探测器（1312 ), 每组探测器至少包括一个探测器， 每个探测器有对 应放大器及衰减器， 调整放大器及衰减器的参数值可达到增加探测器阵列（131 )的 放大倍数的目的。
5、 如权利要求 1或 4所述的利用探测器阵列实现可靠近距离通信的系统， 其特 征在于：
调整放大器及衰减器的参数值将探测器阵列（ 131 )其中一组探测器的放大倍数 调至一较大值 Al > 作为信标探测器 （1311 ), 用于首先与射频移动终端 （12 )进行 通信；
调整放大器及衰减器的参数值将探测器阵列（ 131 )其中另一組探测器的放大倍 数调至一较小值 A2 , 作为最.小刻度探测器（1313 ), 使射频移动终端 （12 )在非常 接近时才能与之通信；
调整放大器及衰减器的参数值将探测器阵列（ 131 )其余各组中的每组探测器的 放大倍数调至介于 A1和 A2间的唯一对应数值， 作为刻度探测器 ( 1312 ), 用于判断 射频移动终端 （12 ) 大致的距离范围。 6、如权利要求要求 1或 4所述的利用探测器阵列实现可靠近距离通信的系统， 其特征在于：
所述信标探测器（ 1311 )和刻度探测器 （ 1312 )可合为一组。
7、如权利要求 1所述的利用探测器阵列实现可靠近距离通信的系统， 其特征在 于:
所述信标探测器（ 1311 )、 最小刻度探测器（ 1313 )和刻度探测器（ 1312 )的放 大倍数可以根据试验数据或者经验来确定， 可通过调整放大器及衰减器的参数值实 现。
8、一种利用探测器阵列实现可靠近距离通信的方法， 基于利用探测器阵列实现 可靠近距离通信的系统（ 10 ), 所述系统包括内含射频 SIM卡（ 11 )的射频移动终端
( 12 )和射频控制终端 （13 ), 其特征在于， 包括步骤：
A. 通过试验为每一类型射频移动终端 （12 )建立其通信状态数据库， 所述数据 库包括各组探测器（ 131 )在每个试验距离上是否可以与射频移动终端（ 12 )进行通 信以及在该距离上各探测器的放大倍数；
B. 将所述通信状态数据库写入所述射频移动终端（ 12 )或射频 SIM卡（ 11 )内， 作为该射频移动终端 （12 ) 自身通信状态数据库；
C 待测试射频移动终端（ 12 )首先通过信标探测器（ 1311 )与射频控制终端（ 13 ) 进行通信， 并将存储在其内的通信状态数据库告知射频控制终端（13 ), 射频控制终 端 （13 )将根据数据库中各组探测器对应的参数值来调整其放大器及衰减器的参数 值；
D.射频移动终端（ 12 )在某个测试距离与射频控制终端（ 13 )的各组探测器（ 131 ) 进行通信， 并将测试结果记录下来；
E. 将实际的测试结果和通信状态数据库记录的情况进行比较，进而判断射频移 动终端 （12 )与射频控制终端 （13 ) 的通信距离的大致范围。
9、 如权利要求 8所述的利用探测器阵列实现可靠近距离通信的方法， 其特征在 于：
步驟 A所述的试验距离为射频移动终端 （12 )与射频控制终端 （13 )之间的通 信距离， 可以根据实际情况自由选择。
10、 如权利要求 8所述的利用探测器阵列实现可靠近距离通信的方法， 其特征 在于： 所述探测器阵列 （ 131 )还包括限位探测器， 用以确保射频移动终端（ 12 )在某 个目标距.离时不能与射频控制终端 （ 13 )进行通信， 以保证通信距离的安全。
PCT/CN2008/001748 2007-10-30 2008-10-17 利用探测器阵列实现可靠近距离通信的系统和方法 WO2010012129A1 (zh)

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