JP2009302866A - Electric field communication portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric field communication portable terminal 1 that can be integrated with a portable phone 2 by attaching to the portable phone 2, and can free a user A from a trouble to simultaneously carry the electric field communication portable terminal 1 with the portable phone as another individual separated from the portable phone. <P>SOLUTION: The electric field communication portable terminal 1 has a transceiver 112 for performing electric field communications, a computer 111, an electric field communication electrode 13, and an attaching means 12 for attaching to the portable phone 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric field communication portable terminal used by being mounted on a mobile phone in order to perform electric field communication through an electric field transmission medium at a close distance.

  In recent years, an IC card type portable terminal in which a microchip CPU as a wearable computer that performs electric field communication and a transceiver that performs electric field communication is incorporated into one card has been developed. Japanese Patent Laying-Open No. 2006-86584 (Patent Document 1) describes such a portable terminal.

  As shown in FIG. 7, in the conventional portable terminal 101, if the user 102 is carrying it, a part of the body of the user 102 touches the electric field communication electrode 104 of another electric field communication device 103, so that the transmission path 105 is formed, electric field communication is started, and conversely, the electric field communication can be ended by leaving the electric field communication electrode 104.

  Therefore, in FIG. 7, in the case where the entry / exit management device for the room where the electric field communication device 103 is provided provides a security service in which only a registered ID person is permitted to enter / exit, the electric field communication technology is as follows. Can be used. An ID number assigned for each user is registered in the portable terminal 101 carried by the user 102. Then, the transmitter / receiver of the electric field communication device 103, at least the electric field communication electrode 104, is installed on the door 106 at the entrance or the wall near the door, and the mobile phone in which the ID number of the user 102 permitted to enter the room is registered. In the case of the terminal 101, when the user touches the electric field communication electrode 104 on the door 106 or the wall, electric field communication is performed between the portable terminal 101 and the electric field communication device 103, and ID authentication processing is performed. The device 103 permits the door lock to be released and releases the door lock, thereby enabling the user 102 to open the door, or opening the automatic door.

  In this way, by allowing a user to carry a portable terminal capable of electric field communication, the user can perform an ID input operation or request an operation to approach or insert the reading device like a security IC card. There is the convenience that ID verification can be completed automatically only by touching the door knob to unlock the door and opening the door, or only by moving toward the automatic door.

On the other hand, in recent years, there has been a remarkable spread of mobile phones, and most people have carried them. Therefore, if an electric field communication portable terminal is united with a mobile phone so that it can be carried as a single device, the user has the trouble of carrying two portable devices of the mobile phone and the electric field communication portable terminal at the same time. You are freed.
JP 2006-86584 A

  The present invention has been made in view of the above-described problems of the prior art, and can be attached to a mobile phone so as to be integrated with the mobile phone, and the user can be carried at the same time as the mobile phone as a separate individual from the mobile phone. An object of the present invention is to provide an electric field communication portable terminal that can be released from inconvenience.

  One feature of the present invention is an electric field communication portable terminal that includes a transceiver that performs electric field communication, a computer, and an electric field communication electrode, and further includes attachment means for attachment to a mobile phone.

  In the electric field communication portable terminal of the above invention, the terminal device main body is a connection connector that can be connected to an adapter connection terminal that is provided in common to many types of mobile phones as mounting means for mounting on the mobile phone. Can be provided.

  In the electric field communication portable terminal according to the above invention, the electric field communication electrode extends along the back side where the operation button of the mobile phone does not exist in a state where the terminal device body is mounted on the mobile phone. An electrode plate may be provided.

  In the electric field communication portable terminal of the above invention, the electrode plate is a laminate of a transmission / reception signal electrode plate and a ground electrode with an insulating material interposed therebetween, and the ground electrode is provided on the back surface of the mobile phone. Facing and having a posture in which the transmission / reception signal electrode plate is exposed.

  Furthermore, in the electric field communication portable terminal according to the above invention, the electrode plate is provided with a slit through which a radio signal for a mobile phone, a radio signal for a non-contact IC card or the like built in the mobile phone is passed. be able to.

  According to the electric field communication portable terminal of the present invention, the mobile phone can be used not only for wireless communication by the mobile phone but also for electric field communication by being mounted on the mobile phone by the mounting means. You are freed from the hassle of carrying your mobile terminal at the same time.

  In addition, according to the electric field communication portable terminal of the present invention, the attachment means can be connected to an adapter connection terminal provided in common for many types of mobile phones, thereby adding an electric field communication function. There is an advantage that the mobile phone side can be used as a retrofit device without requiring any function change.

  Moreover, according to the electric field communication portable terminal of the present invention, it is assumed that the terminal device main body is provided with the electrode plate extending along the back side where the operation button of the portable phone does not exist in a state where the terminal device body is mounted on the portable phone. As a result, if the user carries the electric field communication terminal on the mobile phone and carries it, the electrode plate always touches the user or his / her clothing, and electric field communication can be performed reliably.

  Further, according to the electric field communication portable terminal of the present invention, the electrode plate has a structure in which the transmission / reception signal electrode plate and the ground electrode are laminated via the insulating material, and the ground electrode faces the back surface of the mobile phone, Since the signal electrode plate is provided in an exposed posture, the transmission / reception signal electrode plate and the ground electrode pass through the user's living body and clothes when the user is carrying the electric field communication terminal mounted on the mobile phone. Electric field communication with high reliability can be performed without causing a short circuit.

  Furthermore, according to the electric field communication portable terminal of the present invention, the electrode plate is provided with a slit that allows a wireless signal for a mobile phone and a wireless signal for a non-contact IC card or the like built in the mobile phone to pass through. There is an advantage that radio signals and reception / transmission of radio signals for a non-contact IC card built in a mobile phone are not hindered.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 1A to 1C show a state in which the electric field communication portable terminal 1 according to one embodiment of the present invention is attached to the mobile phone 2, and FIG. 2 shows the electric field communication portable terminal 1 according to the present embodiment. The internal circuit structure of the terminal device main body 11 is shown.

  This electric field communication portable terminal 1 includes a terminal device main body 11 having an internal circuit configuration shown in FIG. 2 and an external connection connector 21 that is installed in common to all types of mobile phones. An adapter connection terminal 12 for connection to the mobile phone 2 and an electrode plate 13 extending along the back side where the operation button 22 of the mobile phone 2 is not present when the terminal device body 11 is mounted on the mobile phone 2. Has been. As the connection terminal 21 on the mobile phone 2 side, if it is a FOMA (registered trademark) mobile phone of NTT DoCoMo, Inc., it is preferable to use an external connection connector for power connection. In addition, it is preferable to use an external connection connector for connecting the power supply to a mobile phone of KDDI or Softbank.

  As shown in detail in FIG. 1B, the electrode plate 13 includes a transmission / reception signal electrode plate 14, a ground electrode 15, and an insulating sheet 16 that insulates them. As shown in detail in FIG. 1C, the transmission / reception signal electrode plate 14 and the ground electrode 15 are provided with slits 17 in an X shape as shown. The slit 17 is provided so that the electrode plate 13 does not hinder transmission / reception of a radio signal for the mobile phone 2 and a radio signal for a non-contact IC card built in the mobile phone. The form of the slit 17 is not particularly limited, and may be a cross shape or a stripe shape, for example. The transmission / reception signal electrode plate 14 and the ground electrode 15 are connected to a transceiver in the terminal device body 11 as will be described later.

  As shown in FIG. 2, the circuit configuration in the terminal device body 11 is as follows. In the terminal device body 11, a computer 111, a transceiver 112, a UART (Universal Asynchronous Receiver Transmitter) interface 113 for performing personal authentication with the mobile phone 2, and a built-in battery serving as a power source for the computer 111 and the transceiver 112 114. In FIG. 2, the transmission / reception signal electrode 14 and the ground electrode 15 described above are connected to the transceiver 112 in the terminal device body 11.

  The mobile phone 2 incorporates a program for executing personal authentication with the connected electric field communication portable terminal. When the electric field communication portable terminal 1 of the present embodiment is connected to the mobile phone 2, the personal authentication procedure is performed. And the mobile phone 2 confirms that the electric field communication mobile terminal 1 belongs to a legitimate user.

  Next, a method of using the electric field communication portable terminal 1 having the above configuration will be described. The electric field communication mobile terminal 1 according to the present embodiment is obtained separately from the mobile phone 2 and is used by connecting to the mobile phone 2. Connection to the mobile phone 2 is performed by inserting the connection connector 12 into the external connection terminal 21 of the mobile phone 2. When the attachment to the mobile phone 2 is detected on the mobile phone 2 side, a personal authentication built-in program is started on the mobile phone 2 side, and the connected device is the electric field communication mobile terminal 1. Personal authentication processing is executed in order to confirm that the user is an authorized user (for example, a proper owner or user of the mobile phone 2). The personal authentication procedure can be verified by inputting a personal identification number on the mobile phone 2 side.

  The user carries and moves the mobile phone 2 to which the electric field communication mobile terminal 1 of the present embodiment is connected in the same manner as a general mobile phone carrying method. For example, it moves in a pocket of clothes, moves in a belt holder, moves on a neck strap, or moves in a bag.

  Below, the electric field communication operation | movement in the case of using the electric field communication portable terminal 1 of this Embodiment as an ID authentication apparatus for the door lock cancellation | release of a security zone is demonstrated.

  As shown in FIG. 3, an electric field communication transceiver 6 for performing electric field communication with the electric field communication portable terminal 1 is installed on a wall near the door 5 in the security zone, and a control device 7 composed of a computer is provided. The electric field communication transceiver 6 is connected to a network such as a LAN.

  The transceiver 6 for electric field communication uses a signal detection technique based on an electro-optical technique using a laser beam and an electro-optic crystal, and induces an electric field based on information to be transmitted on a living body which is an electric field transmission medium. It is a transceiver that transmits and receives information by using a generated electric field.

  As shown in FIG. 4, when the electric field communication transceiver 6 receives transmission data from the control device 7 formed of a computer via an input / output (I / O) circuit 601, the transmission data is transmitted via a transmission unit 602. The electric field is supplied to the transmission / reception electrode 603, an electric field is induced in the electric field transmission medium A through the transmission / reception electrode 603 and the insulating film 604, and the electric field is transmitted to other parts of the electric field transmission medium A. Further, the electric field induced and transmitted by the electric field transmission medium A is detected by the transmission / reception electrode 603 through the insulating film 604, and this electric field is coupled to the electric field detection optical unit 605 and converted into an electric signal. The electric signal is subjected to signal processing such as amplification and noise removal by the signal processing circuit 606, and further shaped by the waveform shaping circuit 607, and then the control device via the input / output (I / O) circuit 601. 7 is output. The control device 7 performs door lock release control of the security door 5 if ID verification described later is established.

  As shown in FIG. 3, when the authorized user A approaches the security door 5 in the security zone and touches the insulating film 604 or electrode 603 portion of the electric field communication transceiver 6, the security door 5 is subjected to the following ID verification process. The door lock release control is performed.

  The electric field communication portable terminal 1 of the present embodiment is assumed to be put in the pocket of the clothes of the user A while being attached to the mobile phone 2. The user A may hold the mobile phone 2 to which the electric field communication mobile terminal 1 is attached.

  When the user A contacts the electric field communication transceiver 6, the ID signal is transmitted to the control device 7 through the human body of the user A and the transceiver 6. And the control apparatus 7 will transmit a Received signal to the electric field communication portable terminal 1, if ID signal is received. And the electric field communication portable terminal 1 will transmit an Action signal to the control apparatus 7, if a Received signal is received. Then, when receiving the Action signal, the control device 7 transmits a lock release control signal to the security door 5, and the security door 5 releases the door lock.

  Next, the normal process of FIG. 3 will be described in more detail. FIG. 5 is a sequence diagram of the normal process of FIG. FIG. 6 shows packet configuration examples of various signals transmitted by the electric field communication portable terminal 1 and the control device 7. As shown in FIG. 6 (0), the basic configuration of the packet includes the ID information of the electric field communication portable terminal 1, the ID information of the control device 7, the Received flag, the Action flag, the time information, and the parity.

  First, the user A carrying the electric field communication portable terminal 1 receives the electrode 603 and the insulating film 604 of the electric field communication transceiver 6 (hereinafter referred to as “electrode 603 etc.”) installed on the wall or floor in front of the security door 5. To touch. As a result, a communication path is established between the computer 111 of the electric field communication portable terminal 1 and the control device 7 via the transceiver 112 of the electric field communication portable terminal 1, the human body of the user A as the electric field transmission medium, and the transceiver 6. The Then, the computer 111 transmits the ID signal shown in FIG. 6A to the control device 7 via the communication path (S11). That is, the computer 111 on the portable terminal 1 side generates and transmits an ID signal in which the ID stored in the storage unit and the parity are set.

  And the signal transmission part 71 of the control apparatus 7 will discriminate | determine whether ID of the said ID signal is a valid ID memorize | stored in the ID memory | storage part 73, if an ID signal is received (S12). In the case of the ID stored in the ID storage unit 73, the signal transmission unit 71 transmits the Received signal shown in FIG. 6 (2) to the electric field communication portable terminal 1 via the communication path (S13). The signal transmission unit 71 sets the ID of the control device 7, the received flag and the reception time of the ID signal in the packet of the ID signal transmitted from the electric field communication portable terminal 1, and receives the received signal in which the parity is set. Generate and send. The ID of the control device 7 is stored in a storage device such as a memory.

  The Received flag is a flag indicating that the ID is a valid ID stored in the ID storage unit 73. In the case of an ID signal of an illegal ID that is not stored in the ID storage unit 73, the signal transmission unit 71 transmits a Received signal for which the Received flag is not set, or does not transmit a Received signal.

  Then, the computer 111 of the electric field communication portable terminal 1 receives the Received signal. When the computer 111 receives the received signal in which the received flag is set, the computer 111 transmits the action signal shown in FIG. 6 (3) to the control device 7 via the communication path (S14). In other words, an action flag is set in the received signal packet transmitted from the control device 7, and an action signal packet in which parity is set is generated and transmitted. Note that the computer 111 does not transmit an action signal when a received signal for which the received flag is not set is received or when no received signal is received.

  And the control part 72 of the control apparatus 7 will transmit the control signal of a door lock cancellation | release to the security door 5, and will release a door lock, if an Action signal is received (S15). In addition, the control unit 72 stores the log information (FIG. 6 (4)) in which the time information of the packet of the received Action signal is rewritten to the time of receiving the Action signal and the parity is set (FIG. 6 (4)) in the log information storage unit 74.

  Through the normal processing described above, the control device 7 sends a door lock release control signal to the security door 5 when the user A carrying the electric field communication portable terminal 1 with the mobile phone 2 contacts the transceiver 6. Send to unlock the door.

  Thus, according to the electric field communication portable terminal 1 of the present embodiment, it is possible to carry the mobile phone 2 almost without any sense of incongruity by attaching it to the mobile phone 2. Since it is rarely forgotten as an indispensable item of life, there is a low possibility that the electric field communication terminal 1 attached to and used for this will be left at home in daily life, or the transfer may be forgotten when changing clothes. The original convenience of the electric field communication terminal can be fully exhibited.

  Further, according to the electric field communication portable terminal 1 of the present embodiment, the adapter connection terminal 12 can be connected to the external connection connector 21 provided in common to the various types of mobile phones 2, thereby There is an advantage that the mobile phone side can be used as a retrofit device without requiring any function change to add a communication function.

  Further, according to the electric field communication portable terminal 1 of the present embodiment, the electrode extending along the back side where the operation button 22 of the mobile phone 2 does not exist in a state where the terminal device body 11 is mounted on the mobile phone 2. Since the board 13 is provided, the user A can reliably carry out electric field communication using the user A as a medium when carrying the mobile phone 2 in his / her hand, putting it in a pocket of clothes or putting it in a belt holder. .

  Further, according to the electric field communication portable terminal 1 of the present embodiment, the electrode plate 13 has a structure in which the transmission / reception signal electrode plate 14 and the ground electrode 15 are stacked via the insulating material 16, and the ground electrode 15 is portable. By facing the back surface of the telephone 2 so that the transmission / reception signal electrode plate 14 is exposed, the user A holds the mobile telephone 2 in his / her hand, puts it in a pocket of clothes, puts it in a belt holder, etc. Therefore, the transmission / reception signal electrode plate 14 and the ground electrode 15 are not short-circuited via the user A when being carried, and electric field communication with high reliability can be performed.

  Furthermore, according to the electric field communication portable terminal 1 of the present embodiment, the electrode plate 13 is provided with a slit through which a wireless signal for a mobile phone and a wireless signal for a non-contact IC card built in the mobile phone are passed. There is an advantage that radio signals for the cellular phone 2 and radio signals for a non-contact IC card built in the cellular phone are not obstructed.

  While the embodiments of the present invention have been described above, various modifications and changes can be made to the embodiments of the present invention without departing from the spirit of the present invention. In the above embodiment, the electric field communication technology using the ID number for opening and closing the automatic door and the automatic lock door is illustrated. However, the present invention is not limited to this. For example, the electric field communication electrode installed on the printer side is portable. If the user carrying the terminal touches, it can also be applied to a document printing system that specifies and prints out the user's document with an ID number registered in the portable terminal.

1A to 1C are a front view, a side view, and a rear view of a state where an electric field communication mobile terminal according to an embodiment of the present invention is mounted on a mobile phone. FIG. 2 is a block diagram of the electric field communication portable terminal of the above embodiment. FIG. 3 is an explanatory view for explaining a usage mode used for unlocking a door of a security door that is used by mounting the electric field communication portable terminal of the above embodiment on a cellular phone. FIG. 4 is a block diagram of a transceiver and a control device that perform electric field communication with the electric field communication portable terminal according to the embodiment and perform door lock release control of the security door. FIG. 5 is a sequence diagram of normal operation between the electric field communication portable terminal of the above embodiment and the transceiver and the control device that perform electric field communication for door lock release control of the security door. FIG. 6 is a packet configuration diagram of various signals used during normal operation between the electric field communication portable terminal of the above embodiment and the transceiver and the control device that perform electric field communication for door lock release control of the security door. FIG. 7 is an explanatory diagram of a conventional electric field communication system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric field communication portable terminal 2 Mobile telephone 5 Security door 6 Transceiver 7 Control apparatus 11 Terminal apparatus main body 12 Adapter connection terminal 13 Electrode board 14 Transmission / reception signal electrode board 15 Ground electrode 16 Insulation sheet 17 Slit 21 External connection connector 22 Operation button 71 Signal Transmission unit 72 Control unit 73 ID storage unit 74 Log information storage unit 101 Mobile terminal 102 User 103 Electric field communication device 104 Electric field communication electrode 105 Transmission path 106 Door 111 Computer 112 Transceiver 114 Battery 601 Input / output circuit 602 Transmission unit 603 Transmission / reception electrode 604 Insulation Film 605 Electric field detection optical part 606 Signal processing circuit 607 Waveform shaping circuit A User

Claims (5)

  An electric field communication portable terminal comprising a transceiver for performing electric field communication, a computer, and an electric field communication electrode, and further comprising mounting means for mounting on a mobile phone.   2. The terminal device main body includes a connection connector that can be connected to an adapter connection terminal that is provided in common to various types of mobile phones as mounting means for mounting on the mobile phone. The electric field communication portable terminal described in 1.   2. The electric field communication electrode, comprising: an electrode plate extending along a back side where no operation button of the mobile phone is present when the terminal device body is mounted on the mobile phone. Or the electric field communication portable terminal of 2.   The electrode plate is formed by laminating a transmission / reception signal electrode plate and a ground electrode with an insulating material interposed therebetween, and the ground electrode faces a back surface of the mobile phone and the transmission / reception signal electrode plate is exposed. The electric field communication portable terminal according to claim 3, wherein the electric field communication portable terminal is provided.   5. The electric field communication according to claim 3, wherein the electrode plate is provided with a slit through which a radio signal for a mobile phone and a radio signal for a non-contact IC card built in the mobile phone pass. Mobile device.

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