JP5421202B2 - Portable machine - Google Patents

Description

  The present invention relates to a portable device configured to be attachable to a cellular phone.

  2. Description of the Related Art Conventionally, an electronic key system is configured to be capable of controlling door locking / unlocking and the like through transmission / reception of various signals including an ID code between a portable device (electronic key) carried by a user and a vehicle. In recent years, from the viewpoint of convenience, it has been studied to configure a mobile device so that it can be attached to a mobile phone. Thereby, since it is not necessary to own a portable machine and a mobile telephone separately, a user's convenience improves (for example, refer patent document 1).

  Here, there is a possibility that the portable device attached to the mobile phone is illegally extracted. In this case, there is a possibility that the vehicle door may be locked or unlocked by itself or by mounting the mobile device on another person's mobile phone. Therefore, measures for imposing certain restrictions on the use of portable devices are being studied. For example, an ID code unique to a mobile phone is registered in the vehicle. Then, the portable device attached to the cellular phone transmits a radio signal including the ID code to the vehicle. The vehicle executes control such as locking / unlocking of the vehicle door on the condition that the ID code included in the received wireless signal is verified. As a result, even if the portable device is illegally extracted from a regular mobile phone and the portable device is attached to a non-regular mobile phone, ID code verification is not established in the vehicle. Etc. become impossible. Here, it is considered that the identification information such as the telephone number and the contractor stored in the SIM card is used as the ID code unique to the mobile phone.

JP 2009-147810 A

  By the way, a vehicle may be temporarily rented out to a family member or a friend. In this case, in the configuration in which the ID code of the mobile phone described above is registered in the vehicle, the ID code is not verified in the vehicle when only the mobile device is lent, and the vehicle door cannot be locked and unlocked. Although it is possible to lock and unlock the vehicle door by renting the mobile phone with the mobile device attached as it is, there is resistance to renting the mobile phone to others for the user. Although it is conceivable to register an ID code unique to the mobile phone of the portable device lending partner in the vehicle, the registration work is troublesome and is not suitable for suddenly and temporarily lending the vehicle. As described above, a technique for easily renting a vehicle while maintaining security has been desired.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a portable device that is improved in convenience while maintaining security.

Hereinafter, means for achieving the above-described object and its operation and effects will be described.
The invention described in claim 1 is configured to be attachable to and detachable from the first and second mobile phones, and the first mobile phone is provided on the condition that the license is acquired in the first mobile phone. The wireless signal including the first ID code corresponding to the first mobile phone is transmitted to the control target in a state where the wireless communication device is attached to the first mobile phone, and the validity of the first ID code included in the wireless signal received by the control target In the portable device whose control is executed when the license is confirmed, a temporary license grant signal including the first ID code and the temporary license is sent to the second mobile phone by the first mobile phone that has acquired the license. To the second mobile phone, provided that the temporary license is granted to the second mobile phone and the temporary license is acquired by the second mobile phone. In the above state to send a radio signal including a first ID code and the second mobile phone has acquired the control target through the temporary license granted signal is set to its gist.

  According to this configuration, the first mobile phone that has acquired this license grants a temporary license to the second mobile phone through a temporary license grant signal. On the condition that the second mobile phone has acquired a temporary license, the mobile device transmits a radio signal to the control target while being attached to the mobile phone. The temporary license grant signal includes not only the temporary license but also the first ID code corresponding to the first mobile phone. Therefore, even when the mobile device is attached to the second mobile phone, the mobile device transmits a wireless signal including the first ID code acquired by the second mobile phone through the temporary license grant signal to the control target. By doing so, the controlled object can be remotely controlled.

  As a result, even if the mobile device is illegally extracted from the first mobile phone and attached to an unauthorized mobile phone, the mobile phone does not have a temporary license, so the control target is illegally controlled remotely. Is suppressed. Further, even if there is a temporary license, the validity of the first ID code included in the radio signal is not confirmed in the control target in the case of a temporary license granted from a mobile phone other than the first mobile phone. Therefore, unauthorized remote control of the controlled object is suppressed. Further, when it is desired to lend the portable device to another person, it is possible to lend the portable device in a usable state by transmitting a temporary license grant signal to another person's portable phone (second portable phone). Thereby, convenience can be improved, maintaining security.

  According to a second aspect of the present invention, in the portable device according to the first aspect, the first mobile phone transmits an erasure request signal for requesting the erasure of the temporary license to the second mobile phone. The gist of this is to erase the temporary license of the second mobile phone.

  According to this configuration, the first mobile phone can erase the temporary license of the second mobile phone to which it has given a temporary license. Thereby, when the rented portable device returns, the temporary license can be deleted. Even if the rented mobile device does not return, the temporary license of the second mobile phone is deleted from the first mobile phone, so that the control object through the mobile device attached to the second mobile phone can be controlled. Remote control is disabled. Thereby, security is improved.

  According to a third aspect of the present invention, in the portable device according to the first or second aspect, the portable device stores a second ID code unique to the portable device, and further adds the second ID to the wireless signal. The gist is that control is executed when the validity of the first and second ID codes is confirmed in the control object.

  According to the configuration, even if the temporary license and the first ID code are illegally acquired through the temporary license grant signal from the regular mobile phone, if the regular mobile device is not attached, The validity of the second ID code unique to the portable device included in the wireless signal from the portable device is not confirmed. Therefore, unauthorized remote control of the controlled object is suppressed, and security can be further improved.

  According to a fourth aspect of the present invention, in the portable device according to any one of the first to third aspects, identification information stored in a SIM card attached to the first cellular phone is used as the first ID. The gist is to use it as a code.

  According to this configuration, identification information (SIMID) stored in the SIM card is used as the first ID code. Therefore, it is not necessary to store the first ID code in the memory of the first mobile phone.

  According to the present invention, it is possible to improve convenience while maintaining security.

The block diagram of an electronic key system. The block diagram of the 1st and 2nd mobile phone.

Hereinafter, an embodiment in which a portable device according to the present invention is embodied in an electronic key system for a vehicle will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, the electronic key system in this example includes a vehicle 10, a mobile phone 20, a master key 30, and a portable device 40. The master key 30 can lock and unlock the vehicle door through wireless communication with the vehicle 10. In addition, the portable device 40 can lock and unlock the vehicle door through wireless communication with the vehicle 10 while being attached to the mobile phone 20. Thereby, even when the user does not carry the master key 30, the vehicle door can be locked and unlocked, and convenience is improved.
<Vehicle 10>
The vehicle 10 includes an in-vehicle control device 11, a short-range communication unit 12, a door lock device 13, and a door handle switch 14. The in-vehicle control device 11 performs overall control of the vehicle 10 and includes a memory 11a. The memory 11a stores first and second key ID codes, a vehicle ID code, and a first SIMID code. As will be described in detail later, the first key ID code and the vehicle ID code are used when authenticating the master key 30, and the second key ID code and the first SIMID code are attached to the portable device 40 and the portable device 40. Used when authenticating the mobile phone 20. The door handle switch 14 is provided at each door handle of the vehicle door, and outputs an operation signal to that effect to the in-vehicle control device 11 when operated by the user.

The in-vehicle control device 11 generates a response request signal including a vehicle ID code for requesting a response to the master key 30 or the portable device 40 and outputs the response request signal to the short-range communication unit 12. The short-range communication unit 12 includes a transmission / reception antenna, a transmission / reception circuit, and the like. Then, the short-range communication unit 12 modulates the response request signal into a signal of an LF (Low Frequency) band, and transmits the modulated response request signal as a radio wave around the vehicle at a predetermined transmission cycle.
<Master key>
The master key 30 includes a master control device 31 and a short-range communication unit 32. The master control device 31 performs overall control of the master key 30 and includes a memory 31a. The memory 31a stores the same first key ID code and vehicle ID code as the code stored in the memory 11a of the vehicle 10. The short-range communication unit 32 includes a transmission / reception antenna, a transmission / reception circuit, and the like.

  When the user carrying the master key 30 approaches the vehicle, the master key 30 receives a response request signal through the short-range communication unit 32. The short-range communication unit 32 demodulates the response request signal and outputs the demodulated response request signal to the master control device 31. When recognizing the response request signal, the master control device 31 collates the vehicle ID code contained in the response request signal with the vehicle ID code stored in the memory 31a (vehicle ID collation). When the vehicle ID verification is established, the master control device 31 recognizes that the vehicle 10 is an object of communication. Then, the master control device 31 generates a first response signal including the first key ID code stored in the memory 31 a and outputs the first response signal to the short-range communication unit 32. The short-range communication unit 32 modulates the first response signal into an RF band (Radio Frequency) signal, and transmits the modulated first response signal to the vehicle 10 as a radio wave.

The short-range communication unit 12 of the vehicle 10 demodulates the first response signal from the master key 30 and outputs the demodulated first response signal to the in-vehicle control device 11. When the in-vehicle control device 11 recognizes the first response signal, the in-vehicle control device 11 collates the first key ID code included in the first response signal with the first key ID code stored in the memory 11a ( Key ID verification). The in-vehicle control device 11 enters the unlocking permitted state when the key ID verification is established. In this unlocking permitted state, the vehicle-mounted control device 11 unlocks the vehicle door via the door lock device 13 when receiving an operation signal indicating that the door handle switch 14 has been operated. Further, when the on-vehicle control device 11 receives an operation signal indicating that the door handle switch 14 has been operated again in the unlocking permitted state, the on-vehicle control device 11 locks the vehicle door via the door lock device 13.
<Mobile phone 20>
The mobile phone 20 includes a telephone-side control device 21, a short-range communication unit 22, a long-range communication unit 24, and a switch group 25. The telephone-side control device 21 performs overall control of itself, and the telephone-side control device 21 includes a memory 21a.

  The telephone-side control device 21 receives an operation signal from the switch group 25 based on the switch operation of the switch group 25 including a numeric keypad. The telephone-side control device 21 performs communication via the long-distance communication unit 24 according to the operation signal. The long-distance communication unit 24 includes a transmission / reception antenna, a transmission / reception circuit, and the like, and performs communication related to a call, electronic mail, and the Internet through a communication network. Specifically, the telephone-side control device 21 can exchange information with the center 50 through the long-distance communication unit 24.

  The telephone-side control device 21 downloads an application (application program) for performing control related to the portable device 40 from the memory 51a of the center 50 via the long-distance communication unit 24 according to the operation of the switch group 25 by the user. Is stored in the memory 21a.

  The near field communication unit 22 is configured similarly to the near field communication unit 12 of the vehicle 10. The near field communication unit 22 communicates with the master key 30. The mobile phone 20 communicates with other devices such as the master key 30 using communication standards such as NFC (Near Field Communication) and Bluetooth (registered trademark). Since the communication function using the communication standard (the short-range communication unit 22 in this example) is provided in the mobile phone in advance, the mobile phone 20 can communicate with other devices without adding a new configuration. It can be carried out. This also enables communication between mobile phones without using a communication network.

In brief, the mobile phone 20 acquires the main license and the temporary license from the center 50 based on the information acquired through communication with the master key 30.
Specifically, the telephone-side control device 21 generates an information request signal for requesting information from the master key 30 and outputs the information request signal to the short-range communication unit 22. The short-range communication unit 22 modulates the information request signal and transmits the modulated information request signal to the master key 30 as a radio wave. The short-range communication unit 32 demodulates the information request signal and outputs the demodulated information request signal to the master control device 31. When the master control device 31 recognizes the information request signal, the master control device 31 generates an information response signal including the first key ID code and the vehicle ID code stored in the memory 31a and transmits the information response signal as a radio wave via the short-range communication unit 32. 40. The information request signal is transmitted through the operation of the switch group 25 by the user. At this time, by prompting the mobile phone 20 to input a password or the like, it is possible to suppress the information request signal from being transmitted from the mobile phone 20 illegally.

  The telephone-side control device 21 recognizes the information response signal received and demodulated via the short-range communication unit 22, and uses the first key ID code and vehicle ID code included in the information response signal in its own memory 21a. To remember. Then, the telephone side control device 21 transmits a license request signal including the first key ID code and the vehicle ID code to the center 50 via the communication network 24 via the long distance communication unit 24.

  Here, in the memory 51a of the center 50, the first key ID code and vehicle ID code of the regular master key 30 as well as information related to the temporary license and the main license are registered. This registration work is performed, for example, by a dealer at the time of delivery.

  Does the center 50 match any one of a plurality of sets of the first key ID code and the vehicle ID code stored in the memory 51a with the first key ID code and the vehicle ID code included in the license request signal? Judge whether or not. When the center 50 determines that they match, the center 50 transmits a license grant signal including information on the main license and the temporary license stored in the memory 51a to the long-distance communication unit 24 of the mobile phone 20 through the communication network. The telephone-side control device 21 stores information on the main license and the temporary license included in the license grant signal received via the long-distance communication unit 24 in its own memory 21a. Thereby, the main license and the temporary license are acquired. If it is determined that they do not match, the license grant signal is not transmitted, and the mobile phone 20 does not acquire the license and the temporary license. A series of processing from transmission of the information request signal to acquisition of the main license and the temporary license is executed through an application stored in the memory 21a.

  Here, this license permits use of the portable device 40 attached to the mobile phone 20. A provisional license permits use of the portable device 40 attached to another mobile phone by giving the mobile phone 20 to another mobile phone. A method of granting a temporary license from the mobile phone 20 to another mobile phone will be described in detail later.

Further, a SIM (Subscriber Identification Module) card 5 is attached to the mobile phone 20. The SIM card 5 stores information for identifying a telephone number and a contractor. The SIM card 5 can be used as its own mobile phone simply by removing it from the original mobile phone and inserting it into a new mobile phone when changing the model of the mobile phone. In this example, the telephone number and information for identifying the contractor are used as a SIMID code for authentication of the portable device 40 in the vehicle 10 and the portable phone 20 to which the portable device 40 is attached.
<Portable device 40>
The portable device 40 includes a portable device-side control device 41 and a short-range communication unit 42. Here, an existing mobile phone is provided with a slot into which a memory card or the like is inserted. The portable device 40 can be inserted into the slot. When the portable device 40 is inserted into the slot of the cellular phone 20, the portable device side control device 41 and the telephone side control device 21 are connected so as to be communicable. Thereby, the portable device side control device 41 recognizes the first SIMID code stored in the SIM card 5 via the telephone side control device 21 or the vehicle ID stored in the memory 21a of the telephone side control device 21. Can recognize the code. The near field communication unit 42 of the portable device 40 is configured similarly to the near field communication unit 32 of the master key 30. The memory 41 a of the portable device side control device 41 stores a second key ID code unique to the portable device 40.

  The telephone-side control device 21 outputs a communication permission signal to the portable device-side control device 41 when at least one of the main license and the temporary license is stored in its own memory 21a. This communication permission signal includes information indicating whether the permission is based on the current license or the temporary license. Since the temporary license is always stored when this license is stored, in this case, the communication permission signal includes information indicating permission based on this license.

  When receiving a communication permission signal from the telephone-side control device 21, the portable device-side control device 41 recognizes whether the license is a license or a temporary license and performs communication through the short-range communication unit 42. . In this example, the portable device-side control device 41 communicates with the vehicle 10 by recognizing that the license is permitted by this license. The portable device 40 communicates with the vehicle 10 in the same manner as the master key 30 described above. Specifically, when the user carrying the mobile phone 20 to which the mobile device 40 is attached approaches the vehicle, the mobile device 40 receives a response request signal. The short-range communication unit 42 of the portable device 40 receives and demodulates the response request signal, and outputs the demodulated response request signal to the portable device-side control device 41. When recognizing the response request signal, the portable device side control device 41 collates the vehicle ID code included in the response request signal with the vehicle ID code stored in the memory 21a recognized through the telephone side control device 21 ( Vehicle ID verification). The portable device-side control device 41 recognizes that the vehicle 10 is an object of communication when the vehicle ID verification is established.

  When the vehicle ID verification is established, the portable device side control device 41 receives the second response signal including the second key ID code stored in the memory 41a and the first SIMID code recognized through the telephone side control device 21. Is output to the short-range communication unit 42. The short-range communication unit 42 modulates the second response signal into an RF band signal, and transmits the modulated second response signal to the vehicle 10 as a radio wave.

  Here, the portable device-side control device 41 changes the location where the SIMID code included in the second response signal is acquired based on the type of license acquired by the mobile phone 20. Specifically, as described above, when the portable device-side control device 41 recognizes that the license is permitted under this license, it includes the SIMID code stored in the SIM card 5 in the second response signal. Further, when the portable device side control device 41 recognizes that the permission is based on the temporary license, the second SIMID code stored in the memory of the mobile phone (the memory 121a of the second mobile phone 120 described later) is stored in the second SIMID code. Included in the response signal. A method of generating the second response signal when it is recognized that the permission is based on the temporary license will be described in detail later.

  The short-range communication unit 12 of the vehicle 10 demodulates the received second response signal and outputs the demodulated second response signal to the in-vehicle control device 11. After recognizing the second response signal, the in-vehicle control device 11 performs verification of the second key ID code included in the second response signal and the second key ID code stored in the memory 11a. (Key ID verification), the first SIMID code included in the second response signal is compared with the first SIMID code stored in the memory 11a (SIMID verification). The vehicle-mounted control device 11 enters the unlocking permitted state when the key ID verification and the SIMID verification are established. In this unlocking permitted state, the vehicle-mounted control device 11 unlocks the vehicle door via the door lock device 13 when receiving an operation signal indicating that the door handle switch 14 has been operated. In this manner, the vehicle door can be unlocked through the portable device 40 attached to the cellular phone 20 that has acquired this license. Further, when the on-vehicle control device 11 receives an operation signal indicating that the door handle switch 14 has been operated again in the unlocking permitted state, the on-vehicle control device 11 locks the vehicle door via the door lock device 13.

  On the other hand, when there is no communication permission signal input from the telephone-side control device 21, that is, when the mobile phone 20 has not acquired either the main license or the temporary license, the portable device-side control device 41 has a near field communication unit 42. Do not communicate through Therefore, even if the portable device 40 is illegally extracted, if the mobile phone to which the portable device 40 is attached has not acquired this license or a temporary license, the vehicle door can be opened through the portable device 40. Lock is suppressed. Thereby, the security of the portable device 40 can be improved.

  As described above, the first key ID code, the vehicle ID code, the second key ID code, and the first SIMID code are stored in the memory 11a of the vehicle 10 in order to perform the above various verifications. Has been. Since the first key ID code and the vehicle ID code are used for collation between the master key 30 as the main key and the vehicle 10, they are registered at the time of delivery. On the other hand, the portable device 40 can additionally be registered in the vehicle 10 after delivery. The registration of the portable device 40 is performed by storing the second key ID code and the first SIMID code in the memory 11a of the vehicle 10. For example, the second key ID code and the first SIMID code can be registered in the vehicle 10 through communication between the mobile device 40 attached to the mobile phone 20 and the vehicle 10. This registration is restricted by the application so as to be possible on condition that the mobile phone 20 to which the mobile device 40 is attached has acquired this license. In addition to this condition, for example, by requesting input of a password or executing biometric authentication through execution of an application, registration work can be permitted only to authorized users.

  According to the above configuration, even if the portable device 40 is illegally extracted from the legitimate mobile phone 20 from which this license has been acquired by a third party, this license or temporary license can be assigned to the third party's mobile phone. Therefore, even if the portable device 40 is attached to the cellular phone, the vehicle door cannot be unlocked through the portable device 40.

  In addition, even if the third party mobile phone has obtained this license, the first SIMID code of the SIM card that is attached to the third party mobile phone is assigned to the authorized mobile phone 20. Different from the first SIMID code of the SIM card 5 to be installed. Therefore, the SIMID verification is not established in the vehicle 10, and the vehicle door is not unlocked.

  Furthermore, not only the portable device 40 but also the SIM card 5 may be illegally extracted from the regular mobile phone 20. However, when the SIM card 5 is extracted, a call or the like through the mobile phone 20 becomes impossible, but the user notices the SIM card 5 being stolen. Therefore, measures can be taken quickly. Specifically, by removing the second key ID code and the first SIMID code from the memory 11 a of the vehicle 10, the unlocking of the vehicle door through the portable device 40 can be prevented.

  By the way, since the mobile phone 20 does not determine whether or not the master key is authorized, the mobile phone 20 also receives an information response signal from the unauthorized master key. The first key ID code and vehicle ID code included in the information response signal are not regular. Although the mobile phone 20 stores both codes that are not legitimate in the memory 21a, in this case, when the mobile phone 20 requests a license, both codes do not match the codes of each set in the memory 51a at the center 50. Is not sent. Therefore, the mobile phone 20 cannot acquire the license and the temporary license. As a result, the telephone-side control device 21 does not output a communication permission signal to the portable device-side control device 41, and the unlocking of the vehicle door through the portable device 40 is restricted. As described above, the collation at the center 50 prevents the mobile phone 20 from acquiring the license or the like using an unauthorized master key, so that the security of the mobile device 40 is improved.

  Next, a provisional license grant method will be described with reference to FIG. The mobile phone 20 that has acquired this license can grant a temporary license to another mobile phone. Hereinafter, for convenience of explanation, the mobile phone 20 is referred to as a first mobile phone 20, and another mobile phone to which a temporary license is given from the first mobile phone 20 is referred to as a second mobile phone 120. Provision of a temporary license is only possible for the first mobile phone 20 having this license through the execution of the application.

  Similar to the first mobile phone 20, the second mobile phone 120 includes a telephone-side control device 121, a short-range communication unit 122, a long-range communication unit 124, and a switch group 125. The function of each part is the same as that of the first mobile phone 20. In addition, the SIM card 105 is attached to the second mobile phone 120. The SIM card 105 stores a second SIMID code. The second SIMID code is different from the first SIMID code. The same application as that of the first mobile phone 20 is stored in the memory 121 a of the second mobile phone 120.

  When the user of the first mobile phone 20 lends the vehicle 10 to the user of the second mobile phone 120, the portable device 40 attached to the first mobile phone 20 is replaced with the second mobile phone 120. At this time, neither the main license nor the temporary license is stored in the memory 121 a of the second mobile phone 120. Therefore, in this state, a communication permission signal is not output from the telephone side control device 121 to the portable device side control device 41, and the portable device 40 cannot be used.

  The telephone side control device 121 of the second mobile phone 120 generates a temporary license request signal and outputs it to the short-range communication unit 122. The short-range communication unit 122 modulates the temporary license request signal and transmits the modulated temporary license request signal to the first mobile phone 20. The provisional license request signal is transmitted through the operation of the switch group 125 by the user.

  The short-range communication unit 22 of the first mobile phone 20 demodulates the received temporary license request signal and outputs the demodulated temporary license request signal to the telephone-side control device 21. When the telephone side control device 21 recognizes the temporary license request signal, the telephone side control device 21 generates a temporary license grant signal including the temporary license stored in the memory 21a and the first SIMID code stored in the SIM card 5. Output to the distance communication unit 22. The short-range communication unit 22 modulates the temporary license grant signal and transmits the modulated temporary license grant signal to the second mobile phone 120. The short-range communication unit 122 of the second mobile phone 120 demodulates the received temporary license grant signal and outputs the demodulated temporary license grant signal to the telephone-side control device 121. When recognizing the temporary license grant signal, the telephone-side control device 121 stores the temporary license included in the temporary license grant signal and the first SIMID code in the memory 121a. Thereby, a temporary license is acquired. When the temporary license is stored in the memory 121a, the telephone-side control device 121 outputs a communication permission signal including permission based on the temporary license to the portable device-side control device 41.

  Here, when the first mobile phone 20 grants a temporary license to the second mobile phone 120, specifically, when the temporary license request signal is recognized, for example, the first mobile phone 20 illegally requests an input of a password or the like. Transmission of the temporary license grant signal to the second mobile phone 120 through the first mobile phone 20 is suppressed.

  The portable device side control device 41 can communicate through the short-range communication unit 42 by inputting a communication permission signal. The mobile device 40 attached to the second mobile phone 120 communicates with the vehicle 10 in substantially the same manner as when the mobile device 40 is attached to the first mobile phone 20 described above. However, unlike the case described above, when the portable device-side control device 41 recognizes that the temporary license is permitted based on the communication permission signal, the first SIMID code stored in the memory 121a of the telephone-side control device 121 is changed to the first SIMID code. 2 response signals. Therefore, as a result, as in the case described above, the portable device 40 attached to the second mobile phone 120 transmits the second response signal including the first SIMID code and the second key ID code. To do. That is, the second SIMID code of the second mobile phone 120 is not included in the second response signal. The vehicle 10 enters the unlocking permitted state when collation is established for each of the first SIMID code and the second key ID code based on the received response signal. When the door handle switch 14 is operated in this state, the vehicle door is unlocked. In this way, the vehicle door can be unlocked through the portable device 40 attached to the second cellular phone 120 by giving the temporary license along with the rental of the portable device 40.

  As described above, the SIMID code included in the second response signal from the portable device 40 regardless of whether the portable device 40 is attached to the first portable phone 20 or the second portable phone 120. Are the same. Thereby, it is not necessary to newly store the second SIMID code in the memory 11a of the vehicle 10. Therefore, the vehicle 10 can be lent out through the portable device 40 easily.

  Next, a temporary license for the second mobile phone 120 and a method for deleting the first SIMID code will be described. The temporary license and the first SIMID code are erased through the communication network.

  The telephone side control device 21 of the first mobile phone 20 transmits an erasure request signal for requesting erasure of the temporary license or the like via the long-distance communication unit 24. This is performed through the operation of the switch group 25 by the user. The erasure request signal is transmitted to the second mobile phone 120 via the communication network. When the telephone-side control device 121 of the second mobile phone 120 receives and recognizes the erasure request signal through the long-distance communication unit 124, it erases the temporary license and the first SIMID code stored in the memory 121a. When the telephone-side control device 121 recognizes that the temporary license and the first SIMID code have been erased, it transmits a completion signal via the long-distance communication unit 124. The completion signal is transmitted to the first mobile phone 20 via the communication network. When the telephone-side control device 21 of the first mobile phone 20 receives and recognizes the completion signal through the long-distance communication unit 24, the telephone-side control device 21 notifies the user through a display unit (not shown). As a result, the user can recognize that the temporary license and the first SIMID code have been successfully erased.

  Thus, even if the portable device 40 lent to the user of the second mobile phone 120 is returned to the user of the first mobile phone 20 by deleting the temporary license or the like, Use of the portable device 40 by the user of the second mobile phone 120 without the user of the first mobile phone 20 is suppressed.

  Even if the rented portable device 40 does not return, the temporary license of the second mobile phone 120 existing at a position away from the first mobile phone 20 can be deleted. Therefore, the security is further improved.

As described above, according to the embodiment described above, the following effects can be obtained.
(1) A temporary license is granted from the first mobile phone 20 that has acquired this license to the second mobile phone 120 through a temporary license grant signal. The portable device 40 can communicate with the vehicle 10 on the condition that the second mobile phone has acquired a temporary license. Further, the temporary license grant signal includes not only the temporary license but also the SIMID code of the SIM card 5 attached to the first mobile phone 20. Accordingly, the portable device 40 attached to the second mobile phone 120 transmits the second response signal including the SIMID code to the vehicle 10 as in the case where the first mobile phone 20 has the license. Thus, the vehicle 10 can be brought into the unlocking permitted state. Thus, even if the portable device 40 is illegally extracted from the first mobile phone 20 and attached to an unauthorized mobile phone, the mobile phone 10 has no license or temporary license. Is prevented from being unauthorizedly unlocked. In addition, even if there is a temporary license, if the temporary license is granted from a mobile phone other than the first mobile phone 20, the validity of the SIMID code included in the second response signal is confirmed in the vehicle 10. Therefore, the vehicle 10 is prevented from being illegally allowed to be unlocked. Further, when it is desired to lend the portable device 40 to another person, it is possible to lend the vehicle to another person easily by transmitting a temporary license grant signal to the other person's mobile phone (second mobile phone 120). Thereby, convenience can be improved, maintaining security.

  (2) Even if a temporary license is illegally obtained from a legitimate mobile phone, the validity of the second key ID code is not confirmed in the vehicle 10 unless the legitimate portable device 40 is attached. Therefore, it is possible to prevent the vehicle 10 from being unauthorizedly unlocked and further improve the security.

  (3) The first mobile phone 20 can erase the temporary license of the second mobile phone 120 to which it has given a temporary license. Thereby, when the lent portable device 40 returns, the temporary license can be deleted. Even if the rented portable device 40 does not return, the portable device 40 attached to the second portable phone 120 can be deleted by deleting the temporary license of the second portable phone 120 from the first portable phone 20. The vehicle 10 cannot be controlled through the vehicle. Thereby, security is improved.

  (4) The SIMID code (identification information) stored in the SIM card 5 is used as the ID code corresponding to the first mobile phone 20. Therefore, it is not necessary to store the ID code corresponding to the first mobile phone 20 in the memory 21 a of the first mobile phone 20.

  Further, since the SIMID code of the SIM card is highly secure information, copying of the code is restricted. Therefore, the SIMID code is prevented from being stolen illegally.

  (5) Provision of a temporary license is possible only for the first mobile phone 20 having this license. As a result, the second mobile phone 120 further grants a temporary license to another mobile phone, thereby preventing provisional licenses from being given in a chain. Thereby, security can be maintained.

In addition, the said embodiment can be implemented with the following forms which changed this suitably.
In the above embodiment, the unlocking permitted state is established through communication between the master key 30 or the portable device 40 existing outside the vehicle and the vehicle 10. In addition, when the user of the master key 30 or the portable device 40 gets on, the engine start permission state may be made through communication between the master key 30 or the portable device 40 existing in the vehicle and the vehicle 10. Specifically, the vehicle-mounted control device 11 transmits a response request signal in the vehicle through the short-range communication unit 12 at a predetermined transmission cycle. The in-vehicle control device 11 enters the engine start permission state when collation of the first key ID code included in the first response signal received from the master key 30 with respect to the response request signal transmitted into the vehicle is established. . Similarly, the in-vehicle controller 11 performs verification of the second key ID code and verification of the first SIMID code included in the second response signal received from the portable device 40 in response to the response request signal transmitted into the vehicle. When established, the engine is allowed to start. The vehicle-mounted control device 11 starts the engine when receiving an operation signal indicating that an engine switch provided near the driver's seat is operated in the engine start permission state.

  In the above embodiment, the user unlocks the vehicle door without operating the master key 30 or the portable device 40 through two-way communication between the vehicle 10 and the master key 30 or the portable device 40 as an electronic key system. The so-called key operation free system that can be used has been adopted. However, the electronic key system is not limited to the key operation free system. For example, a wireless key system that locks and unlocks the vehicle door through unidirectional communication from the master key 30 or the portable device 40 to the vehicle 10 may be employed. In this case, the master key 30 and the portable device 40 are provided with a lock switch and an unlock switch. When the lock switch is operated, a control request signal for requesting the vehicle 10 to be locked is transmitted, and when the unlock switch is operated, a control request signal for requesting the vehicle 10 to be unlocked is transmitted. The control request signal transmitted from the master key 30 includes the first key ID code, and the control request signal transmitted from the portable device 40 includes the second key ID code and the first SIMID code. Yes. That is, when the first key ID code is verified for the control request signal from the master key 30, the vehicle 10 verifies the second key ID code for the control request signal from the portable device 40 and the first key ID code. When the verification of the SIMID code is established, the vehicle door is unlocked. Similarly, the vehicle door is locked by operating the lock switch. Unlike the above embodiment, since the response request signal is not transmitted from the vehicle 10 to the master key 30 and the portable device 40, the vehicle ID code stored in each of the memories 11a, 21a, 31a, 51a can be omitted.

  Further, different methods may be adopted even in the case of bidirectional communication as in the above embodiment. Specifically, a non-contact IC chip is provided on the master key 30 or the portable device 40. The communication unit of the vehicle 10 outputs driving radio waves in the vicinity thereof. When the master key 30 or the portable device 40 is held over the communication unit, the non-contact IC chip is activated by receiving the driving radio wave, and transmits the first or second response signal as in the above embodiment. In this configuration, a vehicle ID code may be included in the driving radio wave, or the vehicle ID code may be omitted.

  In the above embodiment, the second key ID code is stored in the memory 41a of the portable device 40, but the second key ID code may not be stored. This is because even in this case, communication between the portable device 40 and the vehicle 10 is not possible unless the mobile phone has acquired this license or a temporary license. In this case, it is not necessary to store the second key ID code in both memories 41a and 11a, and in some cases, the memory 41a of the portable device 40 can be omitted.

  In the above embodiment, the second response signal includes the second key ID code and the first SIMID code. However, in addition to this, the first key ID code may be further included. . In this case, the in-vehicle control device 11 enters the unlocking permitted state when a total of three verifications of the first and second key ID codes and the first SIMID code are established. This further improves security.

  In the above embodiment, the temporary license and the first SIMID code are erased based on the erase request signal, but it is sufficient if either the temporary license or the first SIMID code is erased. Specifically, if the temporary license is deleted, communication between the portable device 40 and the vehicle 10 becomes impossible. If the first SIMID code is deleted, the first SIMID code is verified in the vehicle 10. No longer. In either case, the vehicle door cannot be locked / unlocked through the portable device 40 attached to the second cellular phone 120. Thereby, security is maintained even when a temporary license is granted.

  In the above embodiment, the erase request signal and the completion signal between the first mobile phone 20 and the second mobile phone 120 are exchanged through the communication network. However, similarly to the temporary license grant signal and the temporary license request signal, the short-distance communication units 22 and 122 may be used to exchange the deletion request signal and the completion signal. Further, the erasure request signal may not be transmitted from the first mobile phone 20. In this case, the temporary license is deleted through the operation of the second mobile phone 120. Further, for example, in the case of a temporary license, security can be maintained by automatically deleting when a predetermined time has elapsed or the number of communication with the vehicle 10 exceeds a predetermined number. Further, only the completion signal from the second mobile phone 120 may be omitted.

  In the above embodiment, the SIMID code of the SIM card 5 is used as the ID code unique to the first mobile phone 20. However, if it is an ID code corresponding to the first mobile phone 20, it may not be a SIMID code. In this case, for example, an ID code unique to the first mobile phone 20 is stored in the memory 21a. This ID code is included in the temporary license grant signal instead of the first SIMID code of the above embodiment, or is stored in the memory 11a of the vehicle 10.

  In the above embodiment, the control object of the master key 30 or the portable device 40 is a vehicle, but the control object is not limited to the vehicle, and may be a door for a house, for example, and its locking / unlocking may be controlled. .

Next, the technical idea that can be grasped from the embodiment will be described together with the effects.
(A) The portable device according to claim 2, wherein the erasure request signal is transmitted from the first portable phone to the second portable phone through a communication network.

  According to this configuration, even if the second mobile phone to which the temporary license is granted is located away from the first mobile phone, the first mobile phone uses the communication network to make the second mobile phone The temporary license can be deleted. Therefore, the security can be further improved.

  5 ... SIM card, 10 ... vehicle, 12, 22, 32, 42, 122 ... near field communication unit, 20 ... first mobile phone, 30 ... master key, 40 ... portable device, 50 ... center, 120 ... second Mobile phone.

Claims (4)

The first mobile phone is configured to be attachable to and detachable from the first mobile phone, and the first mobile phone is attached to the first mobile phone on the condition that the license is acquired in the first mobile phone. When a radio signal including the first ID code corresponding to the mobile phone is transmitted to the control target and the validity of the first ID code included in the radio signal received by the control target is confirmed, the control is performed. In the mobile device to be executed,
A temporary license grant signal including the first ID code and a temporary license is transmitted to the second mobile phone by the first mobile phone that has acquired the main license, so that the temporary license is granted to the second mobile phone. Granted,
The first ID code acquired by the second mobile phone through the temporary license grant signal in a state of being attached to the second mobile phone on the condition that the temporary license has been acquired by the second mobile phone A portable device that transmits a radio signal including a signal to a control target. The portable device according to claim 1,
The first mobile phone is a portable device that erases the temporary license of the second mobile phone by transmitting to the second mobile phone an erasure request signal for requesting erasure of the temporary license. The portable device according to claim 1 or 2,
The portable device stores a second ID code unique to the portable device, transmits the wireless signal by further including the second ID code, and transmits the first ID code and the second ID code in the control target. A portable device that controls when it is validated. In the portable machine as described in any one of Claims 1-3,
A portable device using identification information stored in a SIM card attached to the first cellular phone as the first ID code.

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