WO2014036859A1 - 一种触摸屏终端的近场通信方法、系统及触摸屏终端 - Google Patents

一种触摸屏终端的近场通信方法、系统及触摸屏终端 Download PDF

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Publication number
WO2014036859A1
WO2014036859A1 PCT/CN2013/079490 CN2013079490W WO2014036859A1 WO 2014036859 A1 WO2014036859 A1 WO 2014036859A1 CN 2013079490 W CN2013079490 W CN 2013079490W WO 2014036859 A1 WO2014036859 A1 WO 2014036859A1
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Prior art keywords
touch screen
screen terminal
electrode
receiving
information
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PCT/CN2013/079490
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English (en)
French (fr)
Inventor
冉锐
邓耿淳
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深圳市汇顶科技股份有限公司
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Publication of WO2014036859A1 publication Critical patent/WO2014036859A1/zh
Priority to US14/215,077 priority Critical patent/US9191077B2/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H04B5/263—Multiple coils at either side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Definitions

  • the present invention belongs to the field of communications, and in particular, to a near field communication method and system for a touch screen terminal and a touch screen terminal.
  • Near Field Communication Near Field Communication
  • NFC Near Field Communication
  • NFC magnetic field communication
  • NFC needs to add an inductive card reader or the like to a handheld device such as a mobile phone.
  • the modified handheld device is relatively large, and has limitations on the structural layout and component materials of mobile devices such as mobile phones.
  • the first technical problem to be solved by the present invention is to provide a method for transmitting information in a near field communication by a first touch screen terminal, aiming at realizing near field communication without changing the original volume of the touch screen terminal.
  • a second technical problem to be solved by the present invention is to provide an information transmission system for realizing near field communication of a first touch screen terminal.
  • a third technical problem to be solved by the present invention is to provide a first touch screen terminal including the information transmitting system as described above.
  • a fourth technical problem to be solved by the present invention is to provide a method for information reception by a second touch screen terminal in near field communication.
  • a fifth technical problem to be solved by the present invention is to provide an information receiving system for realizing near field communication of a second touch screen terminal.
  • a sixth technical problem to be solved by the present invention is to provide a second touch screen terminal including the information receiving system as described above.
  • a seventh technical problem to be solved by the present invention is to provide a method of implementing near field communication between a first touch screen terminal and a second touch screen terminal.
  • An eighth technical problem to be solved by the present invention is to provide a system for implementing near field communication between a first touch screen terminal and a second touch screen terminal.
  • the present invention is achieved by providing a method for transmitting information in a near field communication by a first touch screen terminal, the first touch screen terminal including a touch sensor, and the touch sensor includes a plurality of devices disposed on a substrate for A driving electrode and a sensing electrode constituting a capacitor structure, at least one of the driving electrode and the sensing electrode serving as a transmitting electrode, and at least one of the driving electrode and the sensing electrode serving as a receiving electrode; the method comprising the steps of:
  • the first touch screen terminal transmits the near field communication request information to the second touch screen terminal through the transmitting electrode;
  • the first touch screen terminal After receiving the response information returned by the second touch screen terminal, the first touch screen terminal establishes a communication connection with the second touch screen terminal;
  • the first touch screen terminal transmits communication information to the second touch screen terminal through the transmitting electrode.
  • the present invention also provides an information transmission system for implementing near field communication of a first touch screen terminal, the first touch screen terminal comprising a touch sensor, the touch sensor comprising a plurality of transmitting electrodes arranged on the substrate for forming a capacitor structure And a receiving electrode, the transmitting electrode and the receiving electrode respectively for transmitting and receiving signals; the system comprising:
  • a near field communication request information generating unit configured to generate near field communication request information, and send the near field communication request information to the second touch screen terminal through the transmitting electrode;
  • a communication connection establishing unit configured to establish a communication connection with the second touch screen terminal after the receiving electrode receives the response information returned by the second touch screen terminal;
  • the first communication unit is configured to send the communication information to the second touch screen terminal by using the transmitting electrode.
  • the present invention also provides a first touch screen terminal including the information transmitting system as described above.
  • the present invention also provides a method for receiving information in a near field communication of a second touch screen terminal, the touch screen terminal comprising a touch sensor, the touch sensor comprising a plurality of transmitting electrodes arranged on the substrate for forming a capacitor structure And a receiving electrode, the transmitting electrode and the receiving electrode respectively for transmitting and receiving signals; the method comprising the steps of:
  • the second touch screen terminal After the second touch screen terminal returns the response information to the second touch screen terminal by using the sending electrode, establishing a communication connection with the second touch screen terminal;
  • the second touch screen terminal receives the communication information sent by the first touch screen terminal through the receiving electrode.
  • the present invention also provides an information receiving system for implementing near field communication of a second touch screen terminal, the second touch screen terminal comprising a touch sensor, wherein the touch sensor comprises a plurality of transmitting electrodes arranged on the substrate for forming a capacitor structure And a receiving electrode, the transmitting electrode and the receiving electrode respectively for transmitting and receiving signals; the system comprising:
  • a near field communication request response unit configured to respond after receiving the near field communication request information sent by the first touch screen terminal through the receiving electrode, and return the response information to the first touch screen terminal through the transmitting electrode;
  • a communication connection establishing unit configured to establish a communication connection with the first touch screen terminal after the near field communication request response unit returns the response information to the first touch screen terminal;
  • a second communication unit configured to receive communication information of the first touch screen terminal through the receiving electrode.
  • the present invention also provides a second touch screen terminal including the information receiving system as described above.
  • the present invention also provides a method for implementing near field communication between a first touch screen terminal and a second touch screen terminal, wherein the first touch screen terminal and the second touch screen terminal each include a touch sensor, and the touch sensor includes a substrate disposed on the substrate. a plurality of transmitting electrodes and receiving electrodes for constituting a capacitor structure, the transmitting electrodes and the receiving electrodes respectively for transmitting and receiving signals; the method comprising the steps of:
  • the first touch screen terminal transmits the near field communication request information to the second touch screen terminal through the transmitting electrode;
  • the first touch screen terminal After receiving the response information returned by the second touch screen terminal, the first touch screen terminal establishes a communication connection with the second touch screen terminal;
  • the first touch screen terminal and the second touch screen terminal communicate.
  • the present invention also provides a system for implementing near field communication between a first touch screen terminal and a second touch screen terminal, including the first touch screen terminal as described above and the second touch screen terminal as described above.
  • the invention realizes the transmission and reception of signals by multiplexing the electrodes of the touch screen terminal, realizes the near field communication based on the electric field, and the processing part of the signal can be built in the chip, and there is no need to separately provide an inductive card reader or the like. Does not change the original volume of the touch screen terminal.
  • FIG. 1 is a schematic diagram of implementing near field communication between a first touch screen terminal and a second touch screen terminal according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an implementation of a method for implementing near field communication between a first touch screen terminal and a second touch screen terminal according to an embodiment of the present invention
  • FIG. 3 is a sequence diagram of detecting, by a touch screen terminal, whether there is a near field communication request according to an embodiment of the present invention
  • FIG. 4 is a sequence diagram of performing near field communication between a first touch screen terminal and a second touch screen terminal according to an embodiment of the present invention
  • FIG. 5 is a structural diagram of a data frame according to an embodiment of the present invention.
  • FIG. 6 is a logical architecture diagram of a system for implementing near field communication between a first touch screen terminal and a second touch screen terminal according to an embodiment of the present invention
  • FIG. 7 is a hardware structural diagram of a touch screen terminal according to an embodiment of the present invention.
  • FIG. 8 is a hardware structural diagram of another touch screen terminal according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of transmission and reception conflicts according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of automatic switching of functions of a transmitting electrode and a receiving electrode according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram showing a spacing arrangement of a transmitting electrode and a receiving electrode according to an embodiment of the present invention.
  • the electrodes of the touch screen terminal are multiplexed to transmit and receive signals, and the NFC communication is realized by using an electric field as a communication medium.
  • an electric field As a communication medium.
  • FIG. 1 there is a near electric field 3 between the touch screen terminal 1 and the touch screen terminal 2.
  • both have a transceiving function.
  • the touch screen terminal 1 transmits information to the touch screen terminal 2
  • the applied communication medium is directed to the touch screen terminal by the electric field direction.
  • the electric field portion of 2 is as shown in FIG. 1, and when the touch screen terminal 2 transmits information to the touch screen terminal 1, the applied communication medium is the electric field portion of the electric field direction pointing to the touch panel terminal 1.
  • the X channel and the Y channel in Fig. 1 respectively indicate a transmitting electrode and a receiving electrode which are disposed on a substrate for constituting a capacitor structure.
  • FIG. 2 is an implementation flow of a method for implementing near field communication between a first touch screen terminal and a second touch screen terminal according to an embodiment of the present invention, which is described in detail as follows:
  • step S201 the first touch screen terminal transmits the near field communication request information to the second touch screen terminal through the transmitting electrode.
  • the first touch screen terminal and the second touch screen terminal each include a touch sensor
  • the touch sensor includes a plurality of transmitting electrodes and receiving electrodes disposed on the substrate for forming a capacitor structure, and the transmitting electrode and the receiving electrode are respectively used for transmitting And receiving signals.
  • FIG. 3 is a diagram showing the timing of detecting whether there is a near field communication request by the touch screen terminal according to the embodiment of the present invention.
  • the touch screen terminal When the touch screen terminal is working, periodically transmitting and scanning signals, assuming that there are n transmit signal channels X, and the receive signal channel Y has m One.
  • Each scan, X1 ⁇ Xn use T1 ⁇ Tn time units to transmit signals, and each time unit Y1 ⁇ Ym channel simultaneously receives and processes signals.
  • a time window Tn+1 is added to detect whether the NFC communication needs to be established.
  • the near field communication request information carries the ID information of the first touch screen terminal.
  • step S202 the second touch screen terminal receives the near field communication request information sent by the first touch screen terminal through the receiving electrode, and responds.
  • the ID information of the second touch screen terminal is carried in the response information.
  • step S203 the first touch screen terminal establishes a communication connection with the second touch screen terminal after receiving the response information returned by the second touch screen terminal through the receiving electrode.
  • step S204 the first touch screen terminal and the second touch screen terminal communicate.
  • the data frame of the communication information includes data bits and check bits, as shown in FIG. 5, one or more frames of communication information are received at the second touch screen terminal. Then, the second touch screen terminal performs a check calculation on the data bit, and compares the check result with the check bit to determine whether the two are consistent. If not, send the switch to the first touch screen terminal through the sending electrode. send request.
  • the process of transmitting and receiving information of both parties can be performed simultaneously.
  • the half-duplex mode the transceiver must be alternately performed.
  • the control right of the channel needs to be involved, and the second touch screen terminal needs to be sent.
  • the electrode sends the channel control right request information to the first touch screen terminal.
  • the first touch screen terminal After receiving the channel control right request information sent by the second touch screen terminal, the first touch screen terminal sends the used channel information through the sending electrode, and then the second touch screen.
  • the terminal further receives the channel information returned by the first touch screen terminal through the receiving electrode, and performs communication according to the agreed channel.
  • the first touch screen terminal needs to send the synchronization signal to the second touch screen terminal through the transmitting electrode, and the second touch screen terminal transmits and receives the information according to the synchronization signal.
  • FIG. 4 is a complete timing diagram of performing near field communication between touch screen terminals according to an embodiment of the present invention. After establishing a communication connection, the two ends are first synchronized, and are verified after each frame or multiple frames. .
  • FIG. 5 shows a logical architecture of a system for implementing near field communication between touch screen terminals according to an embodiment of the present invention. For convenience of description, only parts related to the present invention are shown.
  • the information transmitting system 1 and the information receiving system 2 are respectively built in the first touch screen terminal touch terminal and the second touch screen terminal touch terminal.
  • the touch screen terminals at both ends include a touch sensor, and the touch sensor includes the layout.
  • a plurality of transmitting electrodes and receiving electrodes for constituting a capacitor structure on the substrate, the transmitting electrodes and the receiving electrodes are respectively used for transmitting and receiving signals.
  • the information transmitting system 1 includes at least a near field communication request information generating unit 11, a communication connection establishing unit 12, and a first communication unit 13.
  • the near field communication request information generating unit 11 is configured to generate near field communication request information, and send the near field communication request information to the second touch screen terminal through the transmitting electrode.
  • the communication connection establishing unit 12 establishes a communication connection with the second touch screen terminal after the receiving electrode receives the response information returned by the second touch screen terminal. After the communication connection is established, the communication information is transmitted by the first communication unit 13 through the transmitting electrode to the second touch screen terminal.
  • the information receiving system 2 includes at least a near field communication request response unit 21, a communication connection establishing unit 22, and a second communication unit 23.
  • the near field communication request response unit 21 responds after receiving the near field communication request information transmitted by the first touch screen terminal through the receiving electrode, and returns the response information to the first touch screen terminal through the transmitting electrode.
  • the communication connection establishing unit 22 establishes a communication connection with the first touch screen terminal after the near field communication request response unit 21 returns the response information to the first touch screen terminal. Finally, the communication information of the first touch screen terminal is received by the second communication unit 23 through the receiving electrode.
  • the data frame of the communication information includes a data bit and a check digit. Therefore, the information receiving system 2 further includes a check unit 24, configured to verify the data bit after receiving the communication information by the second touch screen terminal. The calculation is performed, and the verification result is compared with the check digit to determine whether the two are consistent. If not, the retransmission request is sent to the first touch screen terminal through the transmitting electrode.
  • a check unit 24 configured to verify the data bit after receiving the communication information by the second touch screen terminal. The calculation is performed, and the verification result is compared with the check digit to determine whether the two are consistent. If not, the retransmission request is sent to the first touch screen terminal through the transmitting electrode.
  • the information transmitting system 1 further includes a first synchronization unit 14 for generating a synchronization signal and transmitting the synchronization signal to the second touch screen terminal through the transmitting electrode, and controlling the first communication unit 13 to synchronize with the second touch screen terminal, correspondingly
  • the information receiving system 2 further includes a second synchronization unit 25 for controlling the second communication unit 23 to synchronize with the first touch screen terminal according to the synchronization signal received by the receiving electrode.
  • the information transmitting system 1 and the information receiving system 2 are often built in the same touch screen terminal, and the roles of the transmitting end and the receiving end may be frequently exchanged during the application process, but Specifically for each small communication process, the working principles of the first touch screen terminal and the second touch screen terminal are the same as above.
  • FIG. 7 and FIG. 8 are two types of hardware structures of the touch screen terminal provided by the present invention, except that FIG. 7 is first converted into a digital signal and then mixed, and FIG. 8 is first mixed and then converted into a digital signal.
  • the signal generating component functionally includes the near field communication request information generating unit 11, the first synchronizing unit 15, and the verifying information generating unit 24, and the remaining units may be built in the digital signal processor/microprocessor.
  • Software unit in .
  • the transmitting electrode of one touch screen substrate transmits the communication information to the transmitting electrode of the other touch screen substrate, and the present invention evades the two ways in the present invention. This problem is generated:
  • Method 1 As shown in FIG. 10, when a collision occurs, the functions of the transmitting electrode and the receiving electrode are automatically reciprocated.
  • the transmitting electrode TX is spaced apart from the receiving electrode RX. When colliding, the transmitting electrode TX can transmit communication information to an adjacent receiving electrode.
  • the invention realizes the transmission and reception of signals by multiplexing the electrodes of the touch screen terminal, realizes the near field communication based on the electric field, the communication rate can reach above 500 Kbit/s, and the processing part of the signal can be built in the chip, and no additional sensing is needed.
  • the card reader or the like function does not change the original volume of the touch screen terminal, and the chip can be fabricated on the same silicon chip as the driving chip of the touch screen terminal itself, or even partially or completely multiplex the driving chip of the touch screen terminal itself. Components.

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Abstract

本发明适用于通信领域，提供了一种触摸屏终端的近场通信方法、系统及触摸屏终端。所述触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的驱动电极和感应电极，所述驱动电极和感应电极中至少一个作为发送电极，所述驱动电极和感应电极中至少一个作为接收电极。本发明通过复用触摸屏终端的电极来进行信号的发送和接收，实现基于电场的近场通信，并且信号的处理系统可内置于芯片中，无需再另行设置感应式读卡器或类似功能的部件，不改变触摸屏终端原有体积。

Description

一种触摸屏终端的近场通信方法、系统及触摸屏终端 技术领域
本发明属于通信领域，尤其涉及一种触摸屏终端的近场通信方法、系统及触摸屏终端。
背景技术
　　　近场通信（Near Field Communication，NFC）是一种非接触式识别和互联技术，其采用13.56MHz的近场磁场通信方式，可在移动设备、消费类电子产品、PC 和智能控件工具间进行近距离无线通信，让用户简单直观地交换信息、访问内容与服务。
手机等手持设备集成NFC的市场需求已经成熟，可用来进行移动支付甚至当做POS机来用，然而NFC因采用磁场通信，需要在手机等手持设备上增设感应式读卡器或类似功能的部件，但是改装后的手持设备体积较大，而且对手机等手持设备的结构布局、部件用材均有限制。
 技术问题
本发明所要解决的第一个技术问题在于提供一种第一触摸屏终端在近场通信中进行信息发送的方法，旨在不改变触摸屏终端原有体积的基础上实现近场通信
本发明所要解决的第二个技术问题在于提供一种实现第一触摸屏终端近场通信的信息发送系统。
本发明所要解决的第三个技术问题在于提供一种包含如上所述的信息发送系统的第一触摸屏终端。
本发明所要解决的第四个技术问题在于提供一种第二触摸屏终端在近场通信中进行信息接收的方法。
本发明所要解决的第五个技术问题在于提供一种实现第二触摸屏终端近场通信的信息接收系统。
　　　本发明所要解决的第六个技术问题在于提供一种包含如上所述的信息接收系统的第二触摸屏终端。
本发明所要解决的第七个技术问题在于提供一种在第一触摸屏终端和第二触摸屏终端之间实现近场通信的方法。
本发明所要解决的第八个技术问题在于提供一种在第一触摸屏终端和第二触摸屏终端之间实现近场通信的系统。
 技术解决方案
　　　本发明是这样实现的，提供一种第一触摸屏终端在近场通信中进行信息发送的方法，所述第一触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的驱动电极和感应电极，所述驱动电极和感应电极中至少一个作为发送电极，所述驱动电极和感应电极中至少一个作为接收电极；所述方法包括下述步骤：
　　　第一触摸屏终端通过发送电极发送近场通信请求信息至第二触摸屏终端；
　　　第一触摸屏终端通过接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接；
　　　第一触摸屏终端通过发送电极发送通信信息至第二触摸屏终端。
　　　本发明还提供一种实现第一触摸屏终端近场通信的信息发送系统，所述第一触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述系统包括：
　　　近场通信请求信息产生单元，用于产生近场通信请求信息，并通过发送电极发送所述近场通信请求信息至第二触摸屏终端；
　　　通信连接建立单元，用于在接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接；
　　　第一通信单元，用于通过发送电极发送通信信息至第二触摸屏终端。
　　　本发明还提供一种包含如上所述的信息发送系统的第一触摸屏终端。
　　　本发明还提供一种第二触摸屏终端在近场通信中进行信息接收的方法，所述触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述方法包括下述步骤：
　　　第二触摸屏终端通过接收电极接收第一触摸屏终端发送的近场通信请求信息，并予以应答；
　　　第二触摸屏终端通过发送电极向第二触摸屏终端返回应答信息后，与第二触摸屏终端建立通信连接；
　　　第二触摸屏终端通过接收电极接收第一触摸屏终端发送的通信信息。
　　　本发明还提供一种实现第二触摸屏终端近场通信的信息接收系统，所述第二触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述系统包括：
　　　近场通信请求应答单元，用于在通过接收电极接收到第一触摸屏终端发送的近场通信请求信息后予以应答，并通过发送电极返回应答信息至第一触摸屏终端；
　　　通信连接建立单元，用于在所述近场通信请求应答单元向第一触摸屏终端返回应答信息后，与第一触摸屏终端建立通信连接；
　　　第二通信单元，用于通过接收电极接收第一触摸屏终端的通信信息。
　　　本发明还于提供一种包含如上所述的信息接收系统的第二触摸屏终端。
　　　本发明还提供一种在第一触摸屏终端和第二触摸屏终端之间实现近场通信的方法，所述第一触摸屏终端和第二触摸屏终端均包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述包括下述步骤：
　　　第一触摸屏终端通过发送电极发送近场通信请求信息至第二触摸屏终端；
　　　第二触摸屏终端通过接收电极接收第一触摸屏终端发送的近场通信请求信息，并予以应答；
　　　第一触摸屏终端通过接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接；
　　　第一触摸屏终端和第二触摸屏终端进行通信。
　　　本发明还提供一种在第一触摸屏终端和第二触摸屏终端之间实现近场通信的系统，包括如上所述的第一触摸屏终端和如上所述的第二触摸屏终端。
 有益效果
　　　本发明通过复用触摸屏终端的电极来进行信号的发送和接收，实现基于电场的近场通信，并且信号的处理部分可内置于芯片中，无需再另行设置感应式读卡器或类似功能的部件，不改变触摸屏终端原有体积。
 附图说明
　　　图1是本发明实施例提供的第一触摸屏终端和第二触摸屏终端之间实现近场通信的原理图；
　　　图2是本发明实施例提供的一种在第一触摸屏终端和第二触摸屏终端之间实现近场通信的方法的实现流程图；
　　　图3是本发明实施例提供的触摸屏终端检测是否存在近场通信请求的时序图；
　　　图4是本发明实施例提供的第一触摸屏终端和第二触摸屏终端之间进行近场通信的时序图；
　　　图5是本发明实施例提供的数据帧结构图；
　　　图6是本发明实施例提供的第一触摸屏终端和第二触摸屏终端之间实现近场通信的系统的逻辑架构图；
　　　图7是本发明实施例提供的一种触摸屏终端的硬件结构图；
　　　图8是本发明实施例提供的另一种触摸屏终端的硬件结构图；
　　　图9是本发明实施例提供的发送和接收冲突示意图；
　　　图10是本发明实施例提供的发送电极和接收电极的功能自动交换的示意图；
图11是本发明实施例提供的发送电极和接收电极间隔排列的示意图。
 本发明的实施方式
　　　为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
　　　本发明中，复用触摸屏终端的电极来进行信号的发送和接收，进而以电场为通信媒介实现NFC通信。参照图1，触摸屏终端1和触摸屏终端2之间具有近电场3，本发明中二者均具有收发功能，当触摸屏终端1向触摸屏终端2发送信息时，应用的通信媒介是电场方向指向触摸屏终端2的电场部分，如图1所示，而当触摸屏终端2向触摸屏终端1发送信息时，应用的通信媒介是电场方向指向触摸屏终端1的电场部分。图1中的X通道、Y通道分别表示布设在基板上用于构成电容结构的发送电极和接收电极。
　　　图2是本发明实施例提供的在第一触摸屏终端和第二触摸屏终端之间实现近场通信的方法的实现流程，详述如下：
　　　在步骤S201中，第一触摸屏终端通过发送电极发送近场通信请求信息至第二触摸屏终端。
　　　本发明中，第一触摸屏终端和第二触摸屏终端均包括一触摸传感器，触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，发送电极和接收电极分别用于发射和接收信号。
　　　图3示出了本发明实施例提供的触摸屏终端检测是否存在近场通信请求的时序，触摸屏终端工作时，周期性发射和扫描信号，假定发射信号通道X有n个，接收信号通道Y有m个。每次扫描，X1～Xn分别利用T1～Tn个时间单元发射信号，每个时间单元Y1～Ym通道同时进行信号接收和处理。若终端支持NFC通信，则在每次电容检测扫描结束后，增加一个时间窗口Tn+1用于检测NFC通信是否需要建立。
　　　当现场存在多个触摸屏终端时，为避免与错误的目标建立通信，上述近场通信请求信息中携带有第一触摸屏终端的ID信息。
　　　在步骤S202中，第二触摸屏终端通过接收电极接收第一触摸屏终端发送的近场通信请求信息，并予以应答。
　　　相应地，应答信息中携带有第二触摸屏终端的ID信息。
　　　在步骤S203中，第一触摸屏终端通过接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接。
　　　在步骤S204中，第一触摸屏终端和第二触摸屏终端进行通信。
　　　进一步地，为保证通信信息的正确送达，本发明中，通信信息的数据帧包含有数据位和校验位，如图5所示，在第二触摸屏终端接收到一帧或多帧通信信息之后，第二触摸屏终端对所述数据位进行校验计算，并将校验结果与所述校验位相比对以判断两者是否一致，若不一致，则通过发送电极向第一触摸屏终端发送重新发送请求。
　　　若NFC通信采用全双工模式，双方的收发信息过程可以同时进行，但是若采用半双工模式，则收发必须交替进行，此时需要涉及到信道的控制权，需要由第二触摸屏终端通过发送电极向第一触摸屏终端发送信道控制权请求信息，第一触摸屏终端通过接收电极接收到第二触摸屏终端发送的信道控制权请求信息后，将所使用的信道信息通过发送电极发送，然后第二触摸屏终端再通过接收电极接收第一触摸屏终端返回的信道信息二者根据约定好的信道进行通信。
　　　进一步地，为保证两端信息的收发同步，在进行通信前，第一触摸屏终端需通过发送电极将同步信号发送至第二触摸屏终端，第二触摸屏终端据此同步信号进行信息的收发。
　　　图4示出了本发明实施例提供的一种在触摸屏终端之间进行近场通信的完整的时序图，建立通信连接之后，二端首先同步，并且在每一帧或多帧之后进行校验。
　　　图5示出了本发明实施例提供的一种在触摸屏终端之间实现近场通信的系统的逻辑架构，为了便于描述，仅示出了与本发明相关的部分。
　　　参照图6，信息发送系统1和信息接收系统2分别内置于第一触摸屏终端触摸终端和第二触摸屏终端触摸终端中，如上文所述，两端的触摸屏终端均包括一触摸传感器，触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，发送电极和接收电极分别用于发送和接收信号。
　　　信息发送系统1至少包括近场通信请求信息产生单元11、通信连接建立单元12和第一通信单元13。其中近场通信请求信息产生单元11用于产生近场通信请求信息，并通过发送电极发送该近场通信请求信息至第二触摸屏终端。通信连接建立单元12在接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接。建立通信连接之后，由第一通信单元13通过发送电极发送通信信息至第二触摸屏终端。
　　　信息接收系统2至少包括近场通信请求应答单元21、通信连接建立单元22、第二通信单元23。具体地，近场通信请求应答单元21在通过接收电极接收到第一触摸屏终端发送的近场通信请求信息后予以应答，并通过发送电极返回应答信息至第一触摸屏终端。通信连接建立单元22在近场通信请求应答单元21向第一触摸屏终端返回应答信息后，与第一触摸屏终端建立通信连接。最后，由第二通信单元23通过接收电极接收第一触摸屏终端的通信信息。
　　　进一步地，上述通信信息的数据帧包含有数据位和校验位，因此信息接收系统2还包括一校验单元24，用于在第二触摸屏终端接收到通信信息后，对数据位进行校验计算，并将校验结果与校验位相比对以判断两者是否一致，若不一致，则通过发送电极向第一触摸屏终端发送重新发送请求。
　　　进一步地，信息发送系统1还包括一第一同步单元14，用于产生同步信号并通过发送电极将同步信号发送至第二触摸屏终端，并控制第一通信单元13与第二触摸屏终端同步，相应地，信息接收系统2还包括一第二同步单元25，用于根据接收电极接收到的同步信号，控制第二通信单元23与第一触摸屏终端同步。
　　　应当理解，具体实现时，往往同一个触摸屏终端内同时内置有上述信息发送系统1和信息接收系统2，而在应用过程中，所承担的发送端和接收端的角色也可能会经常互换，但是具体到每一个小的通信过程，第一触摸屏终端与第二触摸屏终端的工作原理均与上文相同。
　　　图7、图8是本发明提供的触摸屏终端的两种硬件结构类型，不同之处在于图7是先转换成数字信号再混频，而图8是先混频再转换成数字信号。其中，信号产生组件在功能上包括上文中的近场通信请求信息产生单元11、第一同步单元15、校验信息产生单元24，而其余各单元可以是内置于数字信号处理器/微处理器中的软件单元。
　　　进一步地，考虑到应用时通信信息的发送和接收可能产生冲突，如图9所示，一个触摸屏基板的发送电极向另一个触摸屏基板的发送电极发送通信信息，本发明中通过两种方式来规避此问题的产生：
　　　方式一：如图10所示,当发生冲突时，自动交会发送电极和接收电极的功能。
　　　方式二：如图11所示，将发送电极TX与接收电极RX间隔排列，当冲突时，发送电极TX可以向临近的接收电极发送通信信息。
　　　本发明通过复用触摸屏终端的电极来进行信号的发送和接收，实现基于电场的近场通信，通信速率可达500Kbit/s以上，并且信号的处理部分可内置于芯片中，无需再另行设置感应式读卡器或类似功能的部件，不改变触摸屏终端原有体积，并且，此芯片可以和触摸屏终端本身的驱动芯片制作于同一硅片上，甚至复用触摸屏终端本身的驱动芯片的部分或全部元器件。
以上所述仅为本发明的较佳实施例而已，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、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (22)

  1. 　　　一种第一触摸屏终端在近场通信中进行信息发送的方法，其特征在于，所述第一触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的驱动电极和感应电极，所述驱动电极和感应电极中至少一个作为发送电极，所述驱动电极和感应电极中至少一个作为接收电极；所述方法包括下述步骤：
    　　　第一触摸屏终端通过发送电极发送近场通信请求信息至第二触摸屏终端；
    　　　第一触摸屏终端通过接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接；
    第一触摸屏终端通过发送电极发送通信信息至第二触摸屏终端。
  2. 如权利要求1所述的方法，其特征在于，在所述第一触摸屏终端通过发送电极发送通信信息至第二触摸屏终端的步骤之后，所述方法还包括下述步骤：
    第一触摸屏终端通过接收电极接收到来自第二触摸屏终端的重新发送请求后，重新发送通信信息至第二触摸屏终端。
  3. 如权利要求1所述的方法，其特征在于，在所述第一触摸屏终端通过发送电极发送通信信息至第二触摸屏终端的步骤之前，所述方法还包括下述步骤：
    　　　第一触摸屏终端通过接收电极接收到第二触摸屏终端发送的信道控制权请求信息后，将所使用的信道信息通过发送电极发送至第二触摸屏终端。
  4. 如权利要求1所述的方法，其特征在于，在所述第一触摸屏终端通过发送电极发送通信信息至第二触摸屏终端的步骤之前，所述方法还包括下述步骤：
    第一触摸屏终端通过发送电极将同步信号发送至第二触摸屏终端。
  5. 如权利要求1至4任一项所述的方法，其特征在于，所述近场通信请求信息中携带有所述第一触摸屏终端的ID信息；所述应答信息中携带有所述第二触摸屏终端的ID信息。
  6. 一种实现第一触摸屏终端近场通信的信息发送系统，其特征在于，所述第一触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述系统包括：
    　　　近场通信请求信息产生单元，用于产生近场通信请求信息，并通过发送电极发送所述近场通信请求信息至第二触摸屏终端；
    　　　通信连接建立单元，用于在接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接；
    第一通信单元，用于通过发送电极发送通信信息至第二触摸屏终端。
  7. 如权利要求6所述的系统，其特征在于，所述第一通信单元还用于在接收到来自第二触摸屏终端的重新发送请求后，通过发送电极重新发送通信信息至第二触摸屏终端。
  8. 如权利要求6所述的系统，其特征在于，所述系统还包括：
    第一同步单元，用于产生同步信号并通过发送电极将所述同步信号发送至第二触摸屏终端，并控制所述第一通信单元与第二触摸屏终端同步。
  9. 如权利要求6所述的系统，其特征在于，所述发送电极和接收电极间隔排列，或发送电极和接收电极的功能可互换。
  10. 一种包括如权利要求6至9任一项所述的信息发送系统的第一触摸屏终端。
  11. 一种第二触摸屏终端在近场通信中进行信息接收的方法，其特征在于，所述触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述方法包括下述步骤：
    　　　第二触摸屏终端通过接收电极接收第一触摸屏终端发送的近场通信请求信息，并予以应答；
    　　　第二触摸屏终端通过发送电极向第二触摸屏终端返回应答信息后，与第二触摸屏终端建立通信连接；
    第二触摸屏终端通过接收电极接收第一触摸屏终端发送的通信信息。
  12. 如权利要求11所述的方法，其特征在于，所述通信信息的数据帧包含有数据位和校验位；在第二触摸屏终端通过接收电极接收第一触摸屏终端发送的通信信息的步骤之后，所述方法还包括下述步骤：
    第二触摸屏终端接收到通信信息后，对所述数据位进行校验计算，并将校验结果与所述校验位相比对以判断两者是否一致，若不一致，则通过发送电极向第一触摸屏终端发送重新发送请求。
  13. 如权利要求11所述的方法，其特征在于，在第二触摸屏终端通过接收电极接收第一触摸屏终端发送的通信信息的步骤之前，所述方法还包括下述步骤：
    第二触摸屏终端通过发送电极向第一触摸屏终端发送信道控制权请求信息，并通过接收电极接收第一触摸屏终端返回的信道信息。
  14. 如权利要求11所述的方法，其特征在于，在第二触摸屏终端通过接收电极接收第一触摸屏终端发送的通信信息的步骤之前，所述方法还包括下述步骤：
    第二触摸屏终端通过接收电极接收第一触摸屏终端发送的同步信号。
  15. 如权利要求11至14任一项所述的方法，其特征在于，所述近场通信请求信息中携带有所述第一触摸屏终端的ID信息；所述应答信息中携带有所述第二触摸屏终端的ID信息。
  16. 一种实现第二触摸屏终端近场通信的信息接收系统，其特征在于，所述第二触摸屏终端包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述系统包括：
    　　　近场通信请求应答单元，用于在通过接收电极接收到第一触摸屏终端发送的近场通信请求信息后予以应答，并通过发送电极返回应答信息至第一触摸屏终端；
    　　　通信连接建立单元，用于在所述近场通信请求应答单元向第一触摸屏终端返回应答信息后，与第一触摸屏终端建立通信连接；
    第二通信单元，用于通过接收电极接收第一触摸屏终端的通信信息。
  17. 如权利要求16所述的系统，其特征在于，所述通信信息的数据帧包含有数据位和校验位；所述系统还包括：
    一校验单元，用于在第二触摸屏终端接收到通信信息后，对所述数据位进行校验计算，并将校验结果与所述校验位相比对以判断两者是否一致，若不一致，则通过发送电极向第一触摸屏终端发送重新发送请求。
  18. 如权利要求16所述的系统，其特征在于，所述系统还包括：
    第二同步单元，用于根据接收电极接收到的同步信号，控制所述第二通信单元与第一触摸屏终端同步。
  19. 如权利要求16所述的系统，其特征在于，所述发送电极和接收电极间隔排列，或发送电极和接收电极的功能可互换。
  20. 一种包括如权利要求16至19任一项所述的信息接收系统的第二触摸屏终端。
  21. 一种在第一触摸屏终端和第二触摸屏终端之间实现近场通信的方法，其特征在于，所述第一触摸屏终端和第二触摸屏终端均包括一触摸传感器，所述触摸传感器包括布设在基板上的多个用于构成电容结构的发送电极和接收电极，所述发送电极和接收电极分别用于发射和接收信号；所述包括下述步骤：
    　　　第一触摸屏终端通过发送电极发送近场通信请求信息至第二触摸屏终端；
    　　　第二触摸屏终端通过接收电极接收第一触摸屏终端发送的近场通信请求信息，并予以应答；
    　　　第一触摸屏终端通过接收电极接收到第二触摸屏终端返回的应答信息后，与第二触摸屏终端建立通信连接；
    第一触摸屏终端和第二触摸屏终端进行通信。
  22. 一种在第一触摸屏终端和第二触摸屏终端之间实现近场通信的系统，其特征在于，包括如权利要求10所述的第一触摸屏终端和如权利要求20所述的第二触摸屏终端。
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