JP2005171666A - Mobile device of remote controller and function limiting device for mobile device of remote controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile device of a remote controller and a function limiting device for the mobile device by which illegal operation of an operated object hardly occurs even when one loses the mobile device. <P>SOLUTION: A smart key 3 has a built-in vibration sensor 23 which detects vibrations applied to a case 3a. A microcomputer 17 computes a vibration value based on the value detected by the vibration sensor 23. When the vibration value exceeds a threshold value, the microcomputer 17 interprets it that the user dropped the smart key 3 on the ground without noticing, and limits the key function. To limit the key function, the microcomputer 17 is made to be in a state that a predetermined signal is not transmitted from a transmitting circuit 19 and a transmitting antenna 19a (a state of signal transmission inhibition). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention performs identification collation with an operation object via wireless communication, and permits the operation of the operation object when the identification code matches, and the portable device function of the remote operation apparatus It relates to a restriction device.

  In recent years, vehicles equipped with a smart key system have been developed to improve the convenience of vehicle operation. The smart key system collates the ID code unique to the key transmitted from the smart key with the ID code registered in the vehicle. If the codes match, the door lock / unlock, steering unlock, engine start It is a system that enables permission, luggage open operation, etc. If the smart key system is installed, various operations of the vehicle can be executed without performing key operations, so that troubles such as key operations and key removal can be saved, and convenience is improved.

  However, if the user (mobile device owner) drops the mobile device without noticing it, if the dropped mobile device is picked up by a third party, problems such as unauthorized entry into the vehicle or vehicle theft may occur. There was a need for some countermeasures. In recent years, a technique for locking and unlocking a door of a house with a portable device for a vehicle has been proposed in order to further improve convenience. However, if this technology becomes widespread, the door of the house can be unlocked with the dropped portable device, which may cause a big problem of unauthorized entry into the house, so measures when dropping the portable device It was necessary to ensure everything.

  An object of the present invention is to provide a portable device of a remote operation device and a portable device function restriction device of a remote operation device that can prevent an unauthorized operation of an operation target even if the portable device is dropped.

  In order to solve the above problem, in the invention according to claim 1, an identification signal is transmitted from the transmission means to the operation target, and identification verification is performed with the operation target via wireless communication. In the portable device of the remote control device that allows the operation of the operation target if the identification information matches with the operation target, the vibration detection means for detecting vibration and the detection value of the vibration detection means The gist of the present invention is that it includes control means for limiting the functions of the portable device.

  According to this invention, when a user (for example, a portable device owner) drops the portable device without noticing it, the vibration of the collision between the portable device and the ground at that time is detected by the vibration detecting means. When the control unit determines that the function restriction should be performed based on the detection value from the vibration detection unit, the control unit recognizes that the user has dropped the portable device without noticing and restricts the portable device function. Therefore, since the portable device function is restricted when the portable device is dropped, the operation object is not operated without permission by a third party who picks up the portable device, and security is ensured.

  According to a second aspect of the present invention, in the first aspect of the present invention, the control unit restricts a portable device function when the vibration value exceeds a threshold value, and the identification signal is used as a function restriction at that time. The gist is to make the external signal receivable while stopping transmission. According to the present invention, in addition to the operation of the invention described in claim 1, since the transmission of the identification signal is stopped as a function restriction, the external signal can be received. Therefore, for example, the restriction release permission signal is received from the outside. Function restriction is released.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the vibration detecting means outputs a restriction command signal when a vibration value exceeds a threshold value, and the control means is provided with the restriction. The gist is to start limiting the function of the portable device when a command signal is input. According to this invention, in addition to the operation of the invention described in claim 1 or 2, it is not necessary for the control means to sequentially determine whether or not the detected value exceeds the threshold value, and the calculation load on the control means is reduced. The

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, when the function is limited by the generation of vibration, a notification request signal indicating the occurrence of vibration is transmitted from the transmission means. The gist of the invention is that it is provided with notification control means for transmitting to a wide-area wireless communication network to notify the user terminal or management center of the occurrence of vibration. According to this invention, in addition to the operation of the invention according to any one of claims 1 to 3, when the function restriction is performed, the user terminal or the management center notifies that fact. It is possible to report to the user that it has been dropped.

  In the invention according to claim 5, in the invention according to any one of claims 1 to 4, the function restriction state is established when a condition for performing the function restoration is established after the function restriction due to the occurrence of vibration is started. The gist of the present invention is that a function return means for canceling the function is provided. According to this invention, in addition to the action of the invention according to any one of claims 1 to 4, the function restriction state is canceled if the condition for performing the function return is established, so that the function restriction is not caused. It becomes possible to return to the state (normal state).

  In the invention according to claim 6, a unique identification signal is transmitted from the portable device via wireless communication, the identification signal and the identification signal of the operation target are collated, and if the identification information matches, In the portable device function restriction device of the remote control device that allows the operation of the operation target, the portable device is provided with vibration detection means for detecting vibration to the portable device main body, and one of the portable device and the operation target The gist of the invention is that control means is provided for restricting the function of the portable device when it is determined that vibration has occurred in the portable device body based on the detection value of the vibration detecting means. According to the present invention, an effect similar to that of the first aspect can be obtained.

  According to the present invention, even if the user drops the portable device, the function of the portable device is limited by the vibration at that time, so even if the dropped portable device is picked up by a third party, the operation by the third party It is possible to make the manipulation of the object difficult to occur.

(First embodiment)
Hereinafter, a first embodiment of a portable device of a remote control device and a portable device function restriction device of a remote control device embodying the present invention will be described with reference to FIGS.

  FIG. 2 is a plan view of the vehicle showing an outline of the smart key system 1. A vehicle 2 as an operation target is equipped with a smart key system 1 as a remote operation device capable of various vehicle operations without performing key operations. The smart key system 1 sends the ID code (identification code) of the smart key 3 as a portable device to the vehicle 2 by wireless communication, performs ID verification on the ID code and the ID code registered in the vehicle 2, and has no key operation. In this system, various operations of the vehicle 2 are permitted and started. As various operations of the vehicle 2, the door lock 4 can be locked / unlocked, the steering lock 5 can be locked / unlocked, the engine 6 can be started, the luggage 7 can be opened.

  Each door 8 is equipped with an outdoor transmitter 9 and an outdoor antenna 10 in a pair. The outdoor transmitter 9 intermittently transmits a request signal Srq within the range of the outdoor detection area E1 indicated by the alternate long and short dash line in FIG. 1 in a parked state (a door is locked without a passenger). When the key owner enters the outdoor detection area E1, the smart key 3 responds to the request signal Srq and transmits a smart signal Sid as an identification signal carrying an ID code unique to the key. The outdoor antenna 10 can receive the smart signal Sid from the smart key 3.

  When the ID verification matches in the outdoor verification (smart verification), locking / unlocking of the door lock 4 is permitted. That is, when the outdoor lock is established when the door lock 4 is locked, the unlocking of the door lock 4 is permitted. When the door outside handle 11 is touched in this state, the internal touch sensor 12 reacts to react the door lock 4. Is unlocked. Further, when the door lock 4 is unlocked and the outdoor verification is established, the door lock 4 is allowed to be locked. When the door lock switch 13 is pressed in this state, the door lock 4 is locked.

  A plurality (two in this example) of indoor transmitters 14 and indoor receivers 15 are mounted in the room. The indoor transmitter 14 is disposed on the front side and the rear side of the room, and the indoor receiver 15 is embedded in a rearview mirror or the like. The indoor transmitter 14 is a range of the indoor detection area E2 indicated by a one-dot chain line in FIG. 1 instead of the outdoor transmitter 9 when the driver gets on (when the door is opened and closed, when the smart ignition is operated, when the door is locked). Request signal Srq is intermittently transmitted. When the smart key 3 receives the request signal Srq, it transmits the smart signal Sid, and the indoor receiver 15 can receive the smart signal Sid.

  When the ID code matches in the indoor verification (smart verification), the unlocking of the steering lock 5 is permitted and the steering lock 5 enters the unlock standby state. When the knob-type engine switch 16 (see FIG. 1) is pushed in the off position, the steering lock 5 is unlocked and the engine 6 enters a start permission state (engine standby state). When the engine switch 16 is turned from the off position to the start position in the engine standby state, the engine 6 starts to start.

  FIG. 1 is a block diagram showing an electrical configuration of the smart key system 1. The smart key 3 includes a case 3a as a portable device body, and a microcomputer (hereinafter referred to as a microcomputer) 17, a receiving circuit 18, and a transmitting circuit 19 are built in the case 3a. The reception circuit 18 and the transmission circuit 19 each include a reception antenna 18a and a transmission antenna 19b, and are connected to the microcomputer 17. The microcomputer 17 constitutes control means, notification control means, and function return means, and the transmission circuit 19 and the transmission antenna 19a constitute transmission means.

  On the other hand, the vehicle 2 includes a controller 20 that performs outdoor collation and indoor collation ID collation, door lock 4 locking / unlocking control, steering lock 5 locking / unlocking control, engine control, and the like. Connected to the controller 20 are a touch sensor 12, a door lock switch 13, an engine switch 16, an outdoor transmitter 9, an outdoor antenna 10, an indoor transmitter 14, an indoor receiver 15, a door lock 4, a steering lock 5 and an engine 6. Yes. When the vehicle 2 is parked, the controller 20 intermittently transmits a request signal Srq via the outdoor transmitter 9 in order to perform outside verification.

  The microcomputer 17 of the smart key 3 manages the main control of the smart key 3, and includes various devices such as a CPU, a RAM (both not shown), a ROM 17a, and an EEPROM 17b. When the microcomputer 17 receives the request signal Srq from the vehicle 2 via the reception antenna 18a and the reception circuit 18, the microcomputer 17 intermittently transmits a smart signal Sid carrying a key-specific ID code via the transmission circuit 19 and the transmission antenna 19a. To do.

  In the EEPROM 20a of the controller 20, an ID code unique to the vehicle is stored in advance. The controller 20 compares the ID code received from the smart key 3 with the ID code stored by itself to determine whether or not outdoor verification is established, and determines that the vehicle owner gets into the vehicle if the ID codes match. As a result, the door is unlocked. On the condition of this door unlock standby state, the controller 20 unlocks the door lock 4 when the door outside handle 11 is touched, and locks the door lock 4 when the door lock switch 13 is pressed.

  Subsequently, the controller 20 detects that the driver has entered the vehicle 2 when door open → close is detected, switches the ID verification to indoor verification, and intermittently transmits the request signal Srq from the indoor transmitter 14 to perform indoor verification. Attempts to establish When the indoor verification is established, the controller 20 enters a steering unlock standby state. When the engine switch 16 is pressed in the steering unlock standby state, the controller 20 unlocks the steering lock 5. On the other hand, if the indoor verification does not match, unlocking of the steering lock 5 is not permitted and the engine 6 cannot be started.

  When the unlocking of the steering lock 5 is completed, the controller 20 enters an engine start standby state. When the controller 20 detects that the engine switch 16 is turned from the off position to the start position in the engine start standby state, the controller 20 turns on the ACC relay and the ST relay (both not shown) to turn on the engine starter (not shown). ) Is activated. Then, the controller 20 performs ignition control and fuel injection control to start the engine 6.

  The smart key 3 is provided with a lock button 21 and an unlock button 22, and these buttons 21 and 22 are connected to the microcomputer 17. When the lock button 21 is pressed, the microcomputer 17 transmits a door lock locking request signal Sa, and the controller 20 uses the reception of the door lock locking request signal Sa as a trigger to unlock the door lock 4 on the condition that outdoor verification is established. On the other hand, when the unlock button 22 is pressed, the microcomputer 17 transmits a door lock unlock request signal Sb, and the controller 20 uses the reception of the door lock unlock request signal Sb as a trigger to set the door lock 4 on the condition that outdoor verification is established. Lock.

  The ROM 17a of the microcomputer 17 stores a key function restriction program that restricts the key function when excessive vibration is applied to the smart key 3. The microcomputer 17 executes a key function restriction program, and restricts the key function of the smart key 3 when excessive vibration is applied to the smart key 3. This key function restriction will be described in detail below. The smart key 3 has a built-in vibration sensor 23 as vibration detecting means for detecting vibration applied to the case 3a. The vibration sensor 23 is composed of, for example, an acceleration sensor, and is connected to the microcomputer 17 and outputs a detection value corresponding to vibration applied to the case 3 a to the microcomputer 17.

  The microcomputer 17 calculates the vibration value W based on the detection value from the vibration sensor 23, and when the vibration value W exceeds the threshold value X (W> X is established), the user does not notice the smart key 3 on the ground or the like. It is judged that the key has been dropped, and the key function is limited. The threshold value X is set to a value corresponding to an impact when the smart key 3 is dropped on the ground or the like without the user's knowledge. On the other hand, if the vibration value W is equal to or less than the threshold value X, it is regarded as vibration that can normally occur (for example, shaking when the smart key 3 is put in a bag or a pocket of clothes).

  Further, the key function restriction performed by the microcomputer 17 includes a state in which an external signal can be received by the reception antenna 18a and the reception circuit 18, but a predetermined signal is not transmitted from the transmission circuit 19 and the transmission antenna 19a (signal transmission prohibited state). Become. That is, even if the microcomputer 17 receives the request signal Srq transmitted from the vehicle 2, it does not transmit the smart signal Sid from the transmission circuit 19 and the transmission antenna 19a, and even if the buttons 21 and 22 are pressed, the door The lock / lock request signal Sa and the door lock / unlock request signal Sb are not transmitted.

  The smart key 3 is provided with a notification function for notifying the mobile phone 24 as a user terminal, the security center 25 as a management center, or the like when the key function is restricted. The notification function will be described in detail below. In the EEPROM 17b of the microcomputer 17, the telephone number (or mail address or the like) of the mobile phone 24 or the security center 25 owned by the key owner (user) is written. This telephone number (e-mail address) can be set and changed by operating the lock button 21 and the unlock button 22, or by providing a numeric keypad on the smart key 3.

  In addition, the smart key 3 can perform data communication with the mobile phone 24 and the security center 25 via the wide-area wireless communication network 26. The wireless communication network 26 is a widely used communication network such as a telephone line. After a predetermined time (for example, about 30 seconds) Ta has elapsed after prohibiting signal transmission due to the occurrence of vibration, the microcomputer 17 uses the telephone numbers (email addresses) of the mobile phone 24 and the security center 25 as transmission destinations. 19 and the transmission antenna 19a transmit a notification request signal Sc.

  The mobile phone 24 notifies that the smart key 3 has been dropped based on the received notification request signal Sc. As this notification, for example, the mobile phone 24 is notified of mail reception, and when the mail is opened, a message indicating that the smart key 3 has been dropped is displayed. On the other hand, when receiving the notification request signal Sc, the security center 25 displays the name of the user who dropped the smart key 3 on a monitor installed in the security center 25. The monitor in the security center 25 confirms the user name and notifies the owner of the smart key 3 that the key has been dropped by making a telephone call or the like.

  In the key function restriction program executed by the microcomputer 17, a set time Tmax that is the execution time of the key restriction state is written. The microcomputer 17 counts the elapsed time T from the start of the key function restriction state using the internal counter 17c, and when the elapsed time T exceeds the set time Tmax (T> Tmax is established), the key function is activated. Release the restricted state. Therefore, when the smart key 3 receives the request signal Srq, the smart signal Sid can be returned, and when the lock button 21 or the unlock button 22 is pressed, the door lock lock request signal Sa or the door lock unlock request signal Sb is transmitted. Return to the normal state possible.

Next, key function restriction processing executed by the controller 20 based on the key function restriction program will be described with reference to the flowchart shown in FIG.
In step 100, normal operation is performed. That is, the smart key 3 is in a normal state in which signal transmission / reception and button operation are possible.

  In step 101, it is determined whether or not an impact has occurred on the smart key 3. That is, when vibration to the smart key 3 is detected and the vibration value W at that time exceeds the threshold value X (W> X is established), it is determined that the user has dropped the smart key 3 without noticing, and the process proceeds to step 102. Transition. On the other hand, when the vibration value W is less than or equal to the threshold value X (W ≦ X is established), it is determined that the user possesses the smart key 3 (the state in which it has not been lost) and the process returns to step 100 to maintain normal operation.

  In step 102, the key function of the smart key 3 is restricted. In this example, an external signal can be received by the reception antenna 18a and the reception circuit 18, but a predetermined signal is not transmitted from the transmission circuit 19 and the transmission antenna 19a (signal transmission prohibited state).

  In step 103, the mobile phone 24 and the security center 25 are notified that the smart key 3 has been dropped. Therefore, since the mobile phone 24 notifies that the smart key 3 has been dropped, or the contact that dropped the smart key 3 comes from the security center 25, the user can check the vehicle 2 or disable the smart key 3. It is possible to respond quickly such as.

  In step 104, it is determined whether or not the elapsed time T from the start of the key function restriction state exceeds the set time Tmax (T> Tmax is established). When T ≦ Tmax is satisfied, the key function restriction state is maintained as it is, and when T> Tmax is satisfied, the routine proceeds to step 105.

In step 105, normal operation is restored. That is, the key restriction state is released and the smart key 3 returns to the normal state.
Now, if the user unexpectedly drops the smart key 3, a strong impact is applied to the smart key 3. The shock at this time is detected by the vibration sensor 23, and when the vibration value W exceeds the threshold value X, the microcomputer 17 determines that the smart key 3 has been dropped from a pocket of clothes or a bag without notice, and restricts the key function. To do. Therefore, even if the smart key 3 is picked up by a malicious third party, the door lock unlocking and engine starting cannot be performed with the smart key 3 in the key function restricted state, so that an unauthorized operation by the third party is not performed. , Security is ensured when the smart key 3 is dropped.

  Further, when the smart key 3 is immediately noticed even when the smart key 3 is dropped and the smart key 3 is picked up, it is not necessary to limit the key function and to report to the mobile phone 24 or the security center 25. In this example, the key function restriction of the smart key 3 returns to the normal state after the set time Tmax has elapsed, so that it is sufficient to wait until the smart key 3 is used. On the other hand, since there is a delay of a predetermined time Ta until the notification to the mobile phone 24 or the security center 25, if the lock button 21 or the unlock button 22 is pressed according to a predetermined procedure during that time, the microcomputer 17 notifies the notification request signal. Cancel transmission of Sc and cancel the report.

According to the present embodiment, the following effects can be obtained.
(1) Even if the smart key 3 is dropped from a pocket or bag of clothes without being noticed by the user, the shock at the time of dropping is detected by the vibration sensor 23, and the key function of the smart key 3 is limited based on the vibration. Therefore, even if the dropped smart key 3 is picked up by a third party, the smart key 3 cannot perform a door lock operation or start the engine. It can be secured sufficiently.

  (2) Since the key function restriction state is released when the set time Tmax has elapsed, the key function restriction state is automatically released, and an operation for releasing the key function restriction state can be made unnecessary. .

  (3) The smart key 3 is in a signal transmission prohibited state as a key function restriction, but maintains a signal receivable state. Therefore, if a restriction state release signal for releasing the key function restriction state is transmitted externally, the smart key 3 can release the key restriction state by receiving the restriction state release signal.

  (4) When the smart key 3 enters the key function restricted state, the mobile phone 24 and the security center 25 are notified of this, so that the user is notified that the smart key 3 has been dropped. Accordingly, an early response such as immediately picking up the smart key 3 or changing the ID code registered in the vehicle 2 is attempted, and the security against vehicle theft and the like can be further improved.

  (5) After a predetermined time Ta has elapsed since the smart key 3 is in a signal transmission prohibited state, a notification is sent to the mobile phone 24 and the security center 25. During the predetermined time Ta, the lock button 21 and the unlock button If 22 is operated according to a predetermined procedure, the notification is cancelled. Therefore, even if the smart key 3 is accidentally dropped on the ground or the like and the smart key 3 enters the key restricted state, the notification is canceled if the lock button 21 or the unlock button 22 is operated immediately according to a predetermined procedure. Thus, it is not necessary to make a false report to the mobile phone 24 or the security center 25.

  (6) Since the smart key 3 is set to the signal transmission prohibited state, the key function restriction is performed on the smart key 3 side, and the smart key 3 itself cannot be used. Therefore, for example, even if the smart key 3 is also used as a key for the house door, the third person who picks up the smart key 3 does not need to unlock the house door, which contributes to an improvement in security.

The method for canceling the key function restriction state in this example may be changed to the following mode.
A fingerprint sensor 27 for collecting the handle operator's fingerprint is attached to the outer surface of the door outside handle 11 shown in FIG. The fingerprint sensor 27 is, for example, an optical type, a pressure sensitive type, a semiconductor capacitance type, or the like, and is connected to the controller 20 via a sensor input circuit 28. The fingerprint sensor 27 outputs the read fingerprint data D to the controller 20 via the sensor input circuit 28. The EEPROM 20a of the controller 20 stores the vehicle owner's fingerprint data Dx, and the controller 20 can compare the fingerprint data D inputted from the fingerprint sensor 27 with the fingerprint data Dx stored in advance.

  When the fingerprint data D matches the fingerprint data Dx and the fingerprint collation is established, the controller 20 transmits a restriction release signal Sd as an external signal from the outdoor transmitter 9. Since the smart key 3 is in the key restricted state but is in a state where signal reception is possible, when the restriction release signal Sd is received via the receiving antenna 18a and the receiving circuit 18 in the key function restricted state, the key function restricted state is released. . Therefore, if fingerprint collation is used as the release condition for the key function restriction state, the restriction state can be released with high security. As another method for transmitting the restriction release signal Sd from the vehicle 2 side, for example, when the door outside handle 11 (or touch sensor 12 is acceptable) or the door lock switch 13 is operated in accordance with a predetermined procedure, the restriction release signal Sd. May be sent.

  Furthermore, the key function restriction state can be released by (1) a method for releasing the set time Tmax, (2) a method for releasing the vehicle 2 by fingerprint verification, and (3) a door outside handle 11 (touch The sensor 12 may be used) or the door lock switch 13 may be released by an operation according to a predetermined procedure. That is, any combination of (1) and (2), (2) and (3), (1), (2), and (3) is used. May be. Such a combination can be similarly applied to the contents described below. The fingerprint sensor 27, the door outside handle 11, the touch sensor 12, and the door lock switch 13 constitute a function return means.

  The EEPROM 17b of the microcomputer 17 stores the operation procedure of the lock button 21 and the unlock button 22 when releasing the key function restriction state. When the lock button 21 and the unlock button 22 are pressed according to a predetermined procedure, for example, when the lock button 21 is pressed five times or three times, and then the unlock button 22 is pressed three times or twice, the key restriction is performed. The state may be unlocked. Alternatively, the key restriction state may be canceled by providing a numeric keypad on the smart key 3 and inputting a password by operating the numeric keypad. Further, a fingerprint sensor may be provided in the smart key 3 and the key function restriction state may be canceled when the fingerprint collation matches.

(Second Embodiment)
Next, the second embodiment will be described with reference to FIG. 4. This example is different from the first embodiment in that the key function is limited on the vehicle 2 side, and the other basic configurations are the same. . Accordingly, in this example, only the parts different from the first embodiment will be described, and the same parts will be denoted by the same reference numerals and detailed description thereof will be omitted.

  The microcomputer 17 constantly monitors the vibration applied to the smart key 3 based on the detection value from the vibration sensor 23. When the vibration value W exceeds the threshold value X, the microcomputer 17 determines that the user has dropped the smart key 3 without noticing the key function. A restriction signal Se is transmitted. The key function restriction program is stored in the EEPROM 20a of the controller 20, and the controller 20 repeatedly executes the key function restriction program at a predetermined cycle. The key function restriction of this example will be described in detail below. When the controller 20 receives the key function restriction signal Se from the smart key 3 via the outdoor antenna 10, the controller 20 receives the key function restriction state, that is, the subsequent external signal is received by the outdoor antenna 10. (No signal reception prohibited state).

  For this reason, even if the third party picks up the smart key 3 dropped by the user and the third party tries to unlock the door lock 4 using the smart key 3, the smart signal Sid or the door transmitted from the smart key 3 is used. The lock / unlock request signal Sb is not accepted by the outdoor antenna 10 of the vehicle 2. Therefore, even if the user drops the smart key 3 and the smart key 3 is picked up by a malicious third party, the third party is not allowed to unlock the door lock or start the engine, ensuring security. Is done.

  In addition, one of the outdoor transmitters 9 in each door 8 can perform data communication with the mobile phone 24 and the security center 25 via the wide-area wireless communication network 26. The controller 20 can perform network communication using the telephone numbers (mail addresses) of the mobile phone 24 and the security center 25 as destinations after a predetermined time Ta has elapsed since the start of the key function restriction state (signal reception prohibited state). A notification request signal Sc is transmitted from the outdoor transmitter 9. The mobile phone 24 and the security center 25 notify the user that the smart key 3 has been dropped based on the received notification request signal Sc.

  The key function restriction program executed by the controller 20 stores a set time Tmax that is the execution time of the key restriction state. The controller 20 counts the elapsed time T from the start of the key function restriction state using the internal counter 20b, and when the elapsed time T exceeds the set time Tmax (T> Tmax is established), the key function The restriction state, that is, the signal reception inhibition state is released. Therefore, the controller 20 can receive the smart signal Sid, the door lock locking request signal Sa, the door lock unlocking request signal Sb, etc. transmitted from the smart key 3 by the outdoor antenna 10 (indoor receiver 15).・ Can unlock and start engine.

  In addition, this example can also employ the example shown in the first embodiment as another unlocking method in the key function restricted state. For example, a fingerprint sensor 27 is installed on the door outside handle 11, and if the fingerprint data D read by the fingerprint sensor 27 matches the fingerprint data Dx registered in the vehicle 2, the key function restriction state is canceled. Also good. As another method, for example, when the door outside handle 11 (or touch sensor 12 is acceptable) or the door lock switch 13 is operated according to a predetermined procedure, the key function restriction state (signal reception inhibition state) is released. Also good. In this example, the controller 20 constitutes control means, notification control means, and function return means, and the outdoor transmitter 9 constitutes transmission means.

According to this embodiment, in addition to the effects (1), (2), (4), and (5) described in the first embodiment, the following effects can be obtained.
(7) When the user drops the smart key 3, the outdoor antenna 10 of the vehicle 2 is in a signal reception prohibited state and the key function is restricted. Accordingly, since the key function is limited on the vehicle 2 side, the vehicle 2 does not accept any signal, and the anti-theft effect of the vehicle 2 becomes very high.

In addition, the said embodiment is not restricted to the above, You may change into the following aspects.
In the first embodiment, the limitation of the key function is not limited to the smart key 3 not transmitting the smart signal Sid. For example, the operation of the smart key 3 is stopped by shutting down (powering off) the microcomputer 17 to A method of not transmitting the signal Sid to the outside may be used. In this case, the power is turned on when the lock button 21 (or the unlock button 22) is operated in a predetermined procedure, and the normal state is restored from the restricted state.

  In the first embodiment, the limitation of the key function is not limited to the transmission prohibition of the smart signal Sid. For example, a method of restricting various operations of the vehicle 2 by transmitting an ID code different from normal may be used. As another method, for example, a method of making the smart signal Sid undetectable by the outdoor antenna 10 of the vehicle 2 by weakening the output of the smart signal Sid may be employed.

  In the first and second embodiments, the notification destination when the key function is restricted is not limited to the mobile phone 24 or the security center 25, but other personal computers, PDAs (Parsonal Digital Assistants), etc. You may use a user terminal and you may report to other centers, such as a vehicle dealer.

In the first and second embodiments, the threshold value X can be appropriately changed.
In the first and second embodiments, biometric authentication is not limited to fingerprint collation, but may be voice authentication in which, for example, a microphone is installed in the vehicle 2 and the voice captured by the microphone is determined to determine whether or not the vehicle is the owner. . Further, image authentication may be performed in which a camera is installed in the vehicle 2 and it is determined whether or not the vehicle is owned by an image captured by the camera.

  In the first and second embodiments, the portable device is not limited to the smart key 3. For example, the door 8 is locked by operating the lock button 21 of the smart key 3 and the door 8 is unlocked by operating the unlock button 22. It may be a radio wave key to make a state.

  In the first and second embodiments, the operation target is not limited to the vehicle 2 and may be a building, for example. That is, the key function restriction of this example may be adopted in a system in which the lock / unlock of the building door is permitted with the smart key 3.

  -In 1st and 2nd embodiment, it is not limited to the microcomputer 17 of the smart key 3 calculating a vibration value. For example, when the vibration sensor 23 detects a vibration equal to or greater than a predetermined threshold, the restriction command signal Sz is output to the microcomputer 17, and the key function restriction is started when the microcomputer 17 inputs the restriction command signal Sz. Also good. In this case, it is not necessary for the microcomputer 17 to sequentially calculate the vibration value W, and the load on the calculation of the microcomputer 17 can be reduced. Further, even if the microcomputer 17 is in the sleep state (standby state), if the microcomputer 17 starts the key function restriction if the restriction command signal Sz is input, the microcomputer 17 is set in the standby state when it is not necessary. Can contribute to energy saving.

  In the first and second embodiments, the vibration sensor 23 may be a capacitance type, an overcurrent type, a piezoelectric element, or the like, and the detection value output from the vibration sensor 23 is an analog or digital type. either will do.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(1) In claim 5, the function return means is a time measuring means for measuring an elapsed time since the start of function restriction, and a return execution for releasing the function restriction state when the elapsed time exceeds a set time. Means.

  (2) In any one of Claim 5 and the technical idea (1), the operation object is acquired by the acquisition means (27) for acquiring personal data necessary for biometric authentication, and the acquisition means. Transmission control means (9, 20) is provided for performing biometric authentication based on personal data and transmitting a restricted state release signal (Sd) when the authentication matches, and the function return means is receiving means (18, 18a). When the restriction state release signal is received via the function restriction state, the function restriction state is released.

  (3) In claim 5 and any one of the technical ideas (1) and (2), the operation object is registered in advance with operation means (11, 12, 13) capable of manual operation. Transmission control means (9, 20) for transmitting a restriction state release signal (Sd) when it is determined that the operation means has been operated in accordance with an operation procedure, and the function return means is reception means (18, 18a). When the restriction state release signal is received via the function restriction state, the function restriction state is released.

  (4) In claim 6, the control means is provided in the portable device, and restricts the portable device function of the portable device itself when it is determined that vibration has occurred in the portable device body based on the detection value of the vibration detection means. To do.

  (5) In claim 6, when the portable device determines that vibration has occurred in the portable device main body based on the detection value of the vibration detecting means, a restriction request signal (Se) indicating that is transmitted via wireless communication. The control means is provided on the operation target and receives the restriction request signal from the portable device, and restricts the portable device function of the portable device on the operation target side based on the restriction request signal.

  (6) In Claim 6 and any one of the technical ideas (4) and (5), when vibration is generated in the portable device body, a notification request signal indicating the occurrence of vibration is transmitted from the transmitter to a wide area. A notification control unit is provided that transmits the information to the wireless communication network and notifies the user terminal or the management center of the occurrence of vibration.

  (7) In claim 6 and any one of the technical ideas (4) to (6), after the function restriction due to the occurrence of vibration is started, the function restriction state is released when a condition for performing the function restoration is satisfied. A function return means was provided.

  (8) In the technical idea (7), when the function restriction is performed on the operation object side, the function return means is provided in the operation object, and measures the elapsed time since the function restriction is started. And a return execution means for releasing the function restriction state when the elapsed time exceeds the set time.

  (9) In the technical ideas (7) and (8), when the function restriction is performed on the portable device side, taking-in means (27) for taking in personal data necessary for biometric authentication into the operation object And a transmission control means (9, 20) for performing biometric authentication based on the personal data captured by the capture means and transmitting a restricted state release signal (Sd) when the authentication matches, and the function return When the means receives the restriction state release signal via the receiving means (18, 18a), the means releases the function restriction state.

  (10) In the technical ideas (7) and (8), when the function restriction is performed on the operation object side, the operation object includes a capture means (27) that captures personal data necessary for biometric authentication. ) Is provided, and the function return means performs biometric authentication based on the personal data captured by the capture means, and releases the function restriction state when the authentication matches.

  (11) In the technical ideas (7) to (10), when the function restriction is performed on the portable device side, the operation object includes operation means (11, 12, 13) that can be manually operated. The function return means is provided and releases the function restriction state when it is determined that the operation means has been operated according to an operation procedure registered in advance.

The block diagram which shows the electric constitution of the smart key system in 1st Embodiment. 1 is a plan view of a vehicle showing an outline of a smart key system 1. FIG. Flowchart executed during key function restriction processing The block diagram which shows the electric constitution of the smart key system in 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Smart key system as a remote operation apparatus, 2 ... Vehicle as operation target object, 3 ... Smart key as portable machine, 3a ... Case as portable machine main body, 9 ... Outdoor transmitter which comprises transmission means, 17 ... A microcomputer constituting control means, notification control means and function return means, 19... Transmission circuit constituting transmission means, 19 a... Transmission antenna constituting transmission means, 20... Control means, notification control means and function return means 23 ... Vibration sensor as vibration detecting means, 24 ... Mobile phone as user terminal, 25 ... Management center as management center, 26 ... Wireless communication network, W ... Vibration value, X ... Threshold value, Sid ... Identification signal As a smart signal, Sd as a restriction state release signal as an external signal, Sc as a notification request signal, and Sz as a restriction command signal.

Claims (6)

If an identification signal is transmitted from the transmission means to the operation target, and identification verification is performed with the operation target via wireless communication, and the identification information matches with the operation target, the operation target In a portable device of a remote control device that is permitted to operate an object,
Vibration detecting means for detecting vibration;
A portable device of a remote control device, comprising: a control unit that restricts a portable device function based on a detection value of the vibration detection unit.   The control means restricts a portable device function when the vibration value exceeds a threshold value, and as a function restriction at that time, stops transmission of the identification signal, but makes an external signal receivable. The portable device of the remote control device according to claim 1. The vibration detection means outputs a restriction command signal when the vibration value exceeds a threshold value,
The portable device of the remote control device according to claim 1, wherein the control unit starts restriction of a portable device function when the restriction command signal is input.   When the function is limited due to the occurrence of vibration, a notification request signal indicating the occurrence of vibration is transmitted from the transmission means to a wide-area wireless communication network so that the user terminal or the management center is notified of the occurrence of vibration. The portable device of the remote control device according to any one of claims 1 to 3, further comprising a control unit.   5. The apparatus according to claim 1, further comprising function return means for releasing the function restriction state when a condition for performing the function restoration is satisfied after the function restriction due to the occurrence of vibration is started. The portable device of the remote control device described. A unique identification signal is transmitted from the portable device via wireless communication, the identification signal and the identification signal of the operation target are collated, and if the identification information matches, the operation of the operation target is permitted. In the portable device function restriction device of the remote control device,
The portable device is provided with vibration detecting means for detecting vibrations to the portable device main body, and vibration occurs in the portable device main body based on a detection value of the vibration detecting means in one of the portable device and the operation target. A portable device function restriction device for a remote control device, characterized in that control means for restricting a portable device function when it is determined that the portable device function is provided.

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