JP5469018B2 - Mobile phone with electronic key function - Google Patents

Description

  The present invention relates to a mobile phone with an electronic key function.

  In the conventional electronic key system, the door can be locked and unlocked through transmission and reception of various signals including an electronic key carried by the user and an ID code between the vehicle or the house. In recent years, in order to further improve convenience, for example, as shown in Patent Document 1, an attempt to add an electronic key function to a mobile phone has been studied. For example, it is considered to register an ID code in a SIM (Subscriber Identity Module) card that is detachable from a mobile phone. The SIM card is an IC card in which information for identifying a telephone number and a contractor is stored. When a user purchases a mobile phone, the user can make a call or the like as his / her mobile phone by simply removing the SIM card from the original mobile phone and inserting it into a new mobile phone.

  As described above, if an ID code used in the electronic key system is newly registered in the SIM card, simply replacing the SIM card not only makes a call as its own mobile phone, but also uses the mobile phone as an electronic key for an ID code. The door can be locked and unlocked through transmission / reception of various signals. Thereby, a highly convenient mobile phone with an electronic key function can be realized.

JP 2007-181119 A

  By the way, in the mobile phone with the electronic key function that has been studied, if the SIM card is illegally removed from the mobile phone, if the SIM card is inserted into a different mobile phone, the door is illegally passed through the mobile phone. There is a risk of locking and unlocking.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a mobile phone with an electronic key function that has improved security while ensuring convenience.

Hereinafter, means for achieving the above-described object and its operation and effects will be described.
The invention according to claim 1 is configured to be detachable from the main body of the mobile phone, and various data in a state in which a main ID code is stored and a part of various data is designated as a sub ID code. And a control device for transmitting a radio signal including the main ID code for requesting control to be controlled, the sub ID code being present in the internal memory, and The control object can be controlled on the condition that the validity of the main ID code included in the radio signal is confirmed on the control object side, and the sub ID code is used in the function of the mobile phone Its gist is that it is part of the data .

According to the configuration, when a part of various data stored in the internal memory is designated as the sub ID code and the sub ID code exists in the internal memory, the wireless signal including the main ID code is transmitted from the mobile phone. The control object can be controlled through the transmission of. Therefore, even if the external memory is illegally extracted from its own mobile phone and inserted into another mobile phone, the sub-ID code is not stored in the other mobile phone. I can't control it. Thereby, since control of the control object through another mobile phone can be prevented, security can be improved. For example, when changing the model of a mobile phone, if the data including the sub ID code stored in the internal memory of the original mobile phone is transferred to the internal memory of the new mobile phone, its own electronic key function It can be used as an attached mobile phone, and user convenience can be ensured.
In addition, since a part of data used in the function of the mobile phone is used as the sub ID code, it is possible to suppress the sub ID code from pressing the storage capacity of the internal memory.

  According to a second aspect of the present invention, in the mobile phone with an electronic key function according to the first aspect, the control device transmits the radio signal including the sub ID code, and the control target side transmits the same. The gist of the invention is that when the validity of the main ID code and the sub ID code included in the radio signal is confirmed, the control of the control target is executed.

  According to this configuration, the radio signal transmitted by the mobile phone includes the sub ID code in addition to the main ID code. Then, when the validity of the main ID code and the sub ID code included in the wireless signal is confirmed on the control target side, control of the control target is executed. Here, when the validity of the main ID code is confirmed, the condition “the sub ID code exists in the internal memory” is satisfied. Therefore, even if the external memory is illegally extracted from its own mobile phone and plugged into another mobile phone, the other mobile phone does not store the legitimate sub-ID code. Even if a wireless signal is transmitted from the mobile phone, the validity of the sub-ID code included in the wireless signal is not confirmed on the control target side. Therefore, the above condition is not satisfied, and control of the control target is not executed. In addition, when changing the model, as described above, it can be easily used as a mobile phone with its own electronic key function by transferring data including the sub ID code. As described above, it is possible to improve security while ensuring convenience. Further, since the control device only includes the sub ID code in the wireless signal and does not determine the validity of the sub ID code, the processing load can be reduced.

  According to a third aspect of the present invention, in the mobile phone with an electronic key function according to the first aspect, the sub-ID code is stored in the external memory, and the control device reads the sub-ID read from the internal memory. The gist of the invention is that a wireless signal including the main ID code can be transmitted on condition that the verification of the code and the sub ID code of the external memory is established.

  According to this configuration, when the sub ID code read from the internal memory and the sub ID code of the external memory are verified, it is assumed that the condition that “the sub ID code exists in the internal memory” is satisfied. A radio signal including the ID code is transmitted. Therefore, even if the external memory is illegally extracted from its own mobile phone and inserted into another mobile phone, the verification of the sub ID code is not established in the other mobile phone, and the transmission of the radio signal Is not done. Thereby, since control of the control object through another mobile phone can be prevented, security can be improved. In addition, when changing the model, as described above, it can be easily performed by transferring data including the sub ID code.

According to a fourth aspect of the present invention, the mobile phone with an electronic key function according to any one of the first to third aspects further includes a biological information acquisition unit that acquires biological information. The gist is that at least a part of the acquired biometric information is stored in the internal memory as the sub ID code.

  According to this configuration, the biological information acquired through the biological information acquisition unit is used as the sub ID code. Here, the biological information is information that only a specific user can have. Accordingly, it is possible to prevent another person from illegally generating the sub ID code through the biometric information acquisition unit, and to ensure security. Moreover, if it is a regular user, biometric information, ie, sub ID code, can be easily acquired through a biometric information acquisition part as needed. Therefore, for example, convenience is high when changing the model of a mobile phone.

According to a fifth aspect of the present invention, in the mobile phone with an electronic key function according to the second aspect, the main ID code is stored in the control target and the external memory is attached to a new mobile phone. The mobile phone control device wirelessly transmits to the center a registration request signal including the main ID code and the new mobile phone sub-ID code stored in the external memory, and the center transmits the registration request signal. When the validity of the main ID code included in the mobile phone is confirmed and it is recognized that the user is a legitimate user through authentication means for authenticating the user of the new mobile phone, the registration command signal including the sub ID code The sub ID code is stored in the control target through wireless transmission, and the main ID code and the sub I included in the radio signal from the new mobile phone are stored in the control target. The gist is that control is executed when the validity of the main ID code and the sub ID code is confirmed when both the code and the main ID code and the sub ID code stored in the code are verified. .

  According to this configuration, when the external memory is attached to a new mobile phone, the sub ID code of the mobile phone is stored in the control target, so that the new mobile phone is registered in the control target. Specifically, the mobile phone transmits a registration request signal including a main ID code and a sub ID code to the center. When the center confirms the validity of the main ID code included in the registration request signal and recognizes that it is a legitimate mobile phone user through the personal authentication means, the center transmits a registration command signal including the sub ID code to the controlled object. To do. When receiving the registration command signal, the control object stores the sub ID code included in the registration command signal. Thus, the registration of the sub ID code of the new mobile phone is completed, and the control target can be controlled through the mobile phone.

According to a sixth aspect of the present invention, in the mobile phone with an electronic key function according to the fifth aspect , the control target can confirm the validity of the main ID code included in the radio signal, and the sub ID code. When the validity of the registration cannot be confirmed, the registration trigger signal is wirelessly transmitted to the new mobile phone, and the mobile phone transmits the registration request signal to the center when the registration trigger signal is received. It is said.

  According to the configuration, when the verification is not established for only the sub ID code included in the radio signal in the control target, the registration trigger signal is transmitted to the mobile phone. When the mobile phone receives the registration trigger signal, the mobile phone transmits a registration request signal on the assumption that its own sub ID code is not registered in the control target. Thereby, the registration of the sub ID code of the mobile phone is performed. As described above, the sub ID code is registered when control of the control target is attempted through an unregistered mobile phone. Therefore, the registration of the sub ID code when the control target is not controlled at all through the mobile phone is suppressed. As a result, careless registration of the secondary ID code is suppressed, and security is improved.

  According to the present invention, in a mobile phone with an electronic key function, it is possible to improve security while ensuring convenience.

The block diagram of the electronic key system in 1st Embodiment. The signal diagram which showed the sub ID code in 1st Embodiment. The block diagram of the electronic key system in 2nd Embodiment. The block diagram of the electronic key system in 3rd Embodiment. The block diagram of the electronic key system in 4th and 5th embodiment.

(First embodiment)
Hereinafter, a first embodiment in which a mobile phone with an electronic key function according to the present invention is embodied in an electronic key system for a vehicle will be described with reference to FIGS.

As shown in FIG. 1, in the electronic key system, the vehicle door can be locked and unlocked through wireless communication between the mobile phone 10 and the vehicle-mounted device 20.
Specifically, the mobile phone 10 includes a mobile-side control device 11 that performs overall control of itself. Connected to the portable control device 11 are a telephone function unit 14 for executing functions such as a call and mail, and a switch group 15 including a numeric keypad. The portable control device 11 receives an operation signal from the switch group 15 based on the switch operation of the user switch group 15. The portable control device 11 executes various functions of the telephone function unit 14 according to the operation signal.

  In addition, the SIM card 5 is detachably provided on the mobile phone 10. The SIM card 5 stores a main ID code, a telephone number, and information for identifying a contractor, which will be described later. When changing the model of the mobile phone, the user can use the mobile phone as his / her mobile phone by simply removing the SIM card 5 from the original mobile phone and inserting it into a new mobile phone.

  The portable control device 11 is connected to a nonvolatile internal memory 16 that stores various data such as music data and image data. Data stored in the internal memory 16 is represented by a sequence of codes (binary code). The portable control device 11 designates a part of the data in the internal memory 16 as the sub ID code 16a. Here, the sub ID code 16a constitutes a part of music data or image data.

  Specifically, as shown in FIG. 2, specific data is selected from various data (music data or the like) stored in the internal memory 16, and the Xth bit to the Yth bit (X < Y) is designated as the sub ID code 16a. The internal memory 16 stores the selected data (selected data) and information necessary for specifying a designated area (X bit to Y bit in this example) in the data. The portable control device 11 recognizes the sub ID code 16a based on the selection data stored in the internal memory 16 and the information required for specifying the specified area.

  As shown in FIG. 1, when the mobile communication unit 12 receives a trigger signal that is a radio signal, the mobile communication unit 12 outputs a signal to that effect to the mobile control device 11. When recognizing that the trigger signal has been received, the portable control device 11 generates a response signal including the main ID code and the sub ID code 16a. That is, when the portable control device 11 receives the trigger signal, the portable control device 11 sends a response signal to the sub ID code 16a recognized based on the selection data stored in the internal memory 16 and the information required for specifying the specified area. Included. At the same time, the portable control device 11 generates a response signal including the main ID code and the sub ID code 16a by including the main ID code stored in the SIM card 5 in the response signal. The portable control device 11 wirelessly transmits the generated response signal via the portable communication unit 12.

The in-vehicle device 20 includes an in-vehicle control device 21, an in-vehicle communication unit 22, and a door lock device 23. The in-vehicle control device 21 performs overall control of the in-vehicle device 20 and includes a memory 21a. In the memory 21a, the same main ID code as the main ID code stored in the SIM card 5 and the same sub ID code 16a as the sub ID code 16a designated in the internal memory 16 are stored.

  The in-vehicle communication unit 22 is provided at a vehicle door, for example. The in-vehicle communication unit 22 transmits a trigger signal in the vicinity thereof in a predetermined cycle. The mobile phone 10 can receive a trigger signal transmitted from the in-vehicle communication unit 22 by being held over the vehicle door. The in-vehicle communication unit 22 receives the response signal from the mobile phone 10 that has received the trigger signal, and outputs the received response signal to the in-vehicle control device 21.

  When recognizing this response signal, the vehicle-mounted control device 21 collates the main ID code included in the response signal with the main ID code stored in its own memory 21a. When the verification of the main ID code is established, the in-vehicle control device 21 performs verification between the sub ID code 16a included in the response signal and the sub ID code 16a stored in its own memory 21a. The in-vehicle control device 21 switches the locking / unlocking state of the vehicle door via the door lock device 23 when the sub ID code 16a is verified. That is, the in-vehicle control device 21 can recognize the locked / unlocked state of the vehicle door via the door lock device 23. The in-vehicle control device 21 unlocks the vehicle door via the door lock device 23 when the main ID code and the sub ID code 16a are verified in the locked state. Similarly, the in-vehicle control device 21 locks the vehicle door via the door lock device 23 when the verification of the main ID code and the sub ID code 16a is established in the unlocked state. That is, unless both the main ID code and the sub ID code 16a are verified, the vehicle door is not locked or unlocked.

  Here, the SIM card 5 is provided so that it can be inserted into and removed from the mobile phone 10. However, the SIM card 5 may be illegally removed from the mobile phone 10 and inserted into another mobile phone. . Other mobile phones can be transmitted with the same configuration as the mobile phone 10 described above, that is, the response signal includes the main ID code and the sub ID code 16a registered in the SIM card 5 in response to the trigger signal. It is assumed that the configuration is as follows. In this case, the other mobile phone recognizes the sub ID code based on the selection data stored in its own internal memory and the information required for specifying the specified area, and uses the sub ID code as a response signal. Include and send. However, since the data stored in the internal memory 16 is different between the own mobile phone 10 and another mobile phone, the sub ID codes are different. Further, even if the same data is stored, the sub ID code is different if the selected data and the designated area are different.

  Therefore, even when a response signal including the sub ID code is transmitted from another mobile phone, the in-vehicle device 20 includes the sub ID code included in the response signal and the sub ID code 16a stored in its own memory 21a. Is not verified. For this reason, as described above, when the SIM card 5 is illegally extracted from the mobile phone 10 and inserted into another mobile phone, the vehicle door is prevented from being unlocked and unlocked through transmission of a response signal. Can be improved.

  Further, when changing the model of the mobile phone 10, it is necessary to replace the SIM card 5 and specify the data in the internal memory 16, particularly the data including the sub ID code 16a, the selection data, and the designated area thereof. What is necessary is just to memorize | store the said information in the internal memory 16 of a new mobile telephone. Such a transfer of data in the internal memory 16 is a service that is usually performed in a mobile phone shop or the like. Therefore, it is possible to change the model of the mobile phone with the electronic key function added without being particularly conscious.

As described above, according to the embodiment described above, the following effects can be obtained.
(1) The mobile phone 10 receives the sub ID code 16a in which a part of data stored in the internal memory 16 is designated in response to the trigger signal from the in-vehicle device 20 and the main ID code stored in the SIM card 5. A response signal including is transmitted. And when collation of the main ID code and sub ID code 16a which are contained in a response signal is materialized in in-vehicle machine 20, locking and unlocking of a vehicle door are performed. Therefore, when the SIM card 5 is illegally extracted from its own mobile phone and inserted into another mobile phone, the sub ID code is not verified in the response signal from the other mobile phone. For this reason, locking / unlocking of the vehicle door through another mobile phone can be prevented, and security can be improved.

  In addition, when changing the model of the mobile phone 10, the data including the sub ID code 16 a stored in the internal memory 16 of the original mobile phone, the selection data, and the information necessary for specifying the specified area, respectively. Is transferred to the internal memory 16 of the new mobile phone, the vehicle door can be locked and unlocked as its own mobile phone.

Further, since the mobile control device 11 only includes the sub ID code 16a in the response signal and does not determine the validity of the sub ID code 16a, the processing load can be reduced.
(2) The sub ID code 16a constitutes a part of music data, image data, and the like. Therefore, unlike the case where the sub ID code is separately stored in the internal memory 16, the capacity of the internal memory 16 is not compressed by the sub ID code 16a.

(Second Embodiment)
A second embodiment in which a mobile phone with an electronic key function according to the present invention is embodied in an electronic key system will be described below. The cellular phone 10 in this embodiment is different from the first embodiment in the usage mode of the sub ID code 16a. Hereinafter, a description will be given focusing on differences from the first embodiment. Note that the electronic key system of this embodiment has substantially the same configuration as the electronic key system of the first embodiment shown in FIG.

  As shown in FIG. 3, in addition to the main ID code and the like, the SIM card 5 stores a sub ID code 16a that is the same as the sub ID code 16a that is a part of the data stored in the internal memory 16 of the mobile phone 10. Is done. Specifically, in order to perform pairing of the mobile phone 10 and the SIM card 5 at a mobile phone shop or the like, the internal memory 16 stores the selection data and information necessary for specifying the designated area, The sub ID code 16a including information in the designated area is also stored in the SIM card 5. Unlike the first embodiment, the sub ID code 16a stored in the memory 21a of the in-vehicle control device 21 is omitted. The sub ID code 16a of the SIM card 5 is normally invalid, and is valid when the collation of the sub ID code is established on the mobile phone 10 side.

  Specifically, when the SIM card 5 is inserted into the mobile phone 10, the mobile side control device 11 recognizes the sub ID code 16 a registered in the SIM card 5. Then, the portable control device 11 collates the sub ID code 16 a of the SIM card 5 with the sub ID code 16 a read from the internal memory 16. When the verification of the sub ID code 16a is established, the mobile side control device 11 validates the main ID code of the SIM card 5 by assuming that the SIM card 5 corresponds to the mobile phone 10. When the main ID code is valid, when the mobile phone 10 receives the trigger signal, the mobile phone 10 transmits a response signal including the main ID code to the in-vehicle device 20. The response signal in this embodiment does not include the sub ID code 16a. The in-vehicle control device 21 detects the vehicle via the door lock device 23 when the main ID code included in the response signal received via the in-vehicle communication unit 22 is matched with the main ID code stored in the memory 21a. Lock and unlock the door.

  When the verification of the sub ID code 16a is not established, the mobile side control device 11 does not validate the main ID code of the SIM card 5, and the mobile phone 10 does not transmit a response signal even if it receives a trigger signal. Therefore, for example, when the SIM card 5 is illegally pulled out from its own mobile phone 10 and inserted into another mobile phone, the verification of the sub ID code 16a is not established in the other mobile phone. For this reason, the locking / unlocking of the vehicle door through another mobile phone is prevented, and the security can be improved.

As mentioned above, according to embodiment described, in addition to the effect of (2) of 1st Embodiment, there can exist the following effects.
(3) When the verification of the sub ID code 16a in the internal memory 16 and the sub ID code 16a in the SIM card 5 is established, the mobile phone 10 transmits a response signal including the main ID code to the trigger signal. Therefore, even if the SIM card 5 is illegally extracted from its own mobile phone 10 and inserted into another mobile phone, the verification of the sub ID code 16a is not established in the other mobile phone, and the response Signal transmission is disabled. Thereby, security can be improved. Further, registration of the sub ID code 16a and verification of the sub ID code 16a in the in-vehicle device 20 are not required.

(Third embodiment)
Hereinafter, a third embodiment in which a mobile phone with an electronic key function according to the present invention is embodied in an electronic key system will be described. The mobile phone 10 in this embodiment is different from the first embodiment in that the sub ID code 16a is collated through face authentication. Hereinafter, a description will be given focusing on differences from the first embodiment. As shown in FIG. 4, the electronic key system of this embodiment has substantially the same configuration as the electronic key system of the first embodiment shown in FIG.

  As shown in FIG. 4, the mobile phone 10 includes a camera 30. The camera 30 corresponds to a biological information acquisition unit. Image data captured by the camera 30 is stored in the internal memory 16 via the portable control device 11. At this time, all the image data stored in the internal memory 16 is used as the sub ID code. Further, the SIM card 5 stores image data of the face of the user of the mobile phone 10 as a sub ID code. The portable control device 11 performs face authentication based on the user face image data stored in the SIM card 5 to determine whether the user face data is included in the image data stored in the internal memory 16. This face authentication corresponds to verification of the sub ID code 16a. When it is determined that there is user face data in the image data stored in the internal memory 16, that is, when face authentication is established, the mobile side control device 11 validates the main ID code of the SIM card 5, Enable transmission.

As described above, according to the embodiment described above, the following operation and effect can be obtained in addition to the operation and effect of (3) of the second embodiment.
(4) With face authentication, face image data can be stored in the internal memory 16 by easily taking a face picture with the camera 30 as necessary. Therefore, for example, when changing the model of a mobile phone, the main ID code becomes valid and a response signal can be transmitted if a picture of the face is taken. By transmitting this response signal, the locking / unlocking state of the vehicle door is switched by the in-vehicle device 20 as in the first embodiment.

(Fourth embodiment)
Hereinafter, a fourth embodiment in which a mobile phone with an electronic key function according to the present invention is embodied in an electronic key system will be described with reference to FIG. The electronic key system of this embodiment has substantially the same configuration as the electronic key system of the first embodiment shown in FIG.

  In this embodiment, when the SIM card is replaced with a new mobile phone, the sub ID code of the new mobile phone is registered in the in-vehicle device through wireless communication. Accordingly, the vehicle door can be locked and unlocked through a new mobile phone. Hereinafter, a description will be given focusing on differences from the first embodiment.

  As shown in FIG. 5, the long-distance communication unit 18 of the mobile phone 50 communicates with the center 40 via a communication network. The center 40 includes a memory 41a, and a main ID code and a password corresponding to the SIM card 5 are registered in advance in the memory 41a. This personal identification number is information that only a legitimate user can know. This registration work is performed, for example, at a dealer. The in-vehicle device 20 includes a long-distance communication unit 28 as with the mobile phone 50.

  In the present embodiment, the serial number of the mobile phone 50 is used as the sub ID code stored in the internal memory 16. The serial number is a unique identification number assigned to each mobile phone. Each mobile phone can be identified by this identification number.

Next, a manner of registering the sub ID code 16a of the mobile phone 50 in the in-vehicle device 20 when the SIM card 5 is inserted into a new mobile phone 50 will be described.
As shown in FIG. 5, the SIM card 5 is pulled out from the original mobile phone 10 in which the sub ID code 16 a is registered and inserted into a new mobile phone 50. The sub ID code of the new mobile phone 50 is not registered in the in-vehicle device 20. Therefore, even if a response signal is transmitted from the mobile phone 50 in this state, the verification of the sub ID code 16a is not established in the in-vehicle device 20, and the vehicle door cannot be unlocked. Therefore, registration work described below is required.

  Here, the internal memory 16 of the mobile phone 50 stores application software that is activated when the sub ID code 16 a of the mobile phone 50 is registered in the in-vehicle device 20. This application software can be downloaded from the center 40 through a communication network. The portable control device 11 registers the sub ID code 16a in the in-vehicle device 20 according to the application software.

  Specifically, when the portable control device 11 recognizes that the SIM card 5 has been inserted, the portable control device 11 requests the user to input a personal identification number. Then, the portable control device 11 recognizes the personal identification number input through the switch group 15, the main ID code of the SIM card 5, and the sub ID code 16a (serial number) of the internal memory 16, and sends a registration request signal including them. The data is transmitted via the long-range communication unit 18. This registration request signal is transmitted to the center 40 via the communication network. The center 40 collates the personal identification number included in the registration request signal with the personal identification number stored in its own memory 41a, and the main ID code included in the registration request signal and the main ID stored in its own memory 41a. Check against the code. The validity of the user of the mobile phone 50 is confirmed through verification of the personal identification number. Further, the center 40 can recognize a vehicle to be newly registered with a sub ID code through verification of the main ID code. That is, the memory 41a stores not only the main ID code but also vehicle information corresponding to the code. The sub-ID code included in the received registration request signal is temporarily stored in the memory 41a of the center 40.

  The center 40 transmits a registration command signal including the sub ID code 16a to the in-vehicle device 20 when it is determined that both the password number and the main ID code are verified. When receiving the registration command signal via the long-distance communication unit 28, the in-vehicle control device 21 newly stores the sub ID code included in the registration command signal in the memory 21a.

  When the in-vehicle control device 21 recognizes that the storage of the sub ID code 16 a in the memory 21 a is completed, the in-vehicle control device 21 transmits a completion signal indicating that the registration work is completed to the center 40 through the long-distance communication unit 28. When the center 40 receives the completion signal from the in-vehicle control device 21, the center 40 erases the sub ID code temporarily stored in the memory 41a and transmits the completion signal to the mobile phone 50 through the communication network. When recognizing that the completion signal has been received through the long-distance communication unit 18, the portable control device 11 notifies the user that registration of the sub ID code has been completed through a display unit (not shown).

  With the above registration work, it is possible to switch the lock / unlock state of the vehicle door through the new mobile phone 50. That is, when the new mobile phone 50 with the SIM card 5 attached receives a trigger signal from the in-vehicle device 20, the new mobile phone 50 transmits a response signal including the main ID code and the sub ID code 16a. The sub ID code 16a is registered in the vehicle as described above. The in-vehicle device 20 switches the locking / unlocking state of the vehicle door when both verification of the main ID code and the sub ID code 16a included in the received response signal is established.

  Further, the mobile phone 50 can erase the sub ID code 16a stored in the memory 21a of the in-vehicle device 20. When the portable control device 11 recognizes that an operation related to the deletion of the sub ID code 16a has been performed through the switch group 15, the portable control device 11 requests the user to input a personal identification number. Thereafter, similarly to the registration request signal, an erasure request signal including a code number, a main ID code, and a sub ID code 16a is transmitted to the center 40 through the communication network. The center 40 transmits an erasure command signal including the sub ID code 16a to the in-vehicle device 20 when both the password number and the main ID code included in the erasure request signal are verified. When the in-vehicle device 20 receives the erasure command signal, the in-vehicle device 20 erases the sub ID code 16a identical to the sub ID code 16a included in the erasure command signal from the memory 21a. When the in-vehicle device 20 recognizes that the sub ID code 16 a has been erased, it transmits a completion signal to the mobile phone 50 through the center 40. When the cellular phone 50 receives the completion signal, the cellular phone 50 notifies the user through a display unit (not shown). Thereby, for example, when changing the model of the mobile phone, the security can be maintained by deleting the sub ID code 16a of the original mobile phone from the in-vehicle device 20.

As described above, according to the embodiment described above, the following effects can be obtained.
(5) When the SIM card 5 is attached to a new mobile phone 50, the sub-ID code 16a of the mobile phone 50 is stored in the in-vehicle device 20 so that the new mobile phone 50 is registered in the vehicle. . Specifically, the mobile phone 50 transmits a registration request signal including the main ID code, the sub ID code 16 a and the personal identification number to the center 40. When the center 40 recognizes that the verification of both the main ID code and the password included in the registration request signal has been established, the center 40 transmits a registration command signal including the sub ID code 16a to the in-vehicle device 20. When receiving the registration command signal, the in-vehicle device 20 stores the sub ID code 16a included in the registration command signal in its own memory 21a. Thus, the registration of the sub ID code 16a of the new mobile phone 50 is completed, and the vehicle door can be locked and unlocked through the mobile phone 50.

  Thus, even when the data in the internal memory 16 including the sub ID code 16a is lost due to a failure of the original mobile phone 10, the new sub ID code 16a of the mobile phone 50 can be easily registered in the vehicle. it can. Further, since the sub ID code 16a is registered through the center 40, the sub ID code 16a can be registered even when the mobile phone 50 is located away from the vehicle.

  (6) A serial number is used as the sub ID code 16a. Since the serial number is a number unique to the mobile phone assigned to each mobile phone, it is suitable as a sub ID code. Further, since the serial number is stored in advance in the internal memory 16 of the mobile phone 50, the sub ID code does not press the capacity of the internal memory 16.

  (7) When the SIM card 5 is inserted into a new mobile phone 50, a registration request signal is automatically transmitted after waiting for the input of a password. Therefore, the trouble of registering the sub ID code 16a in the vehicle through the transmission of the registration request signal by the user's operation can be saved.

(Fifth embodiment)
Hereinafter, a fifth embodiment in which a mobile phone with an electronic key function according to the present invention is embodied in an electronic key system will be described. The electronic key system of this embodiment has substantially the same configuration as the electronic key system of the fourth embodiment shown in FIG. In this embodiment, the registration timing of the sub ID code 16a corresponding to the mobile phone 50 to the vehicle is different from that of the fourth embodiment. Hereinafter, the difference from the fourth embodiment will be mainly described.

  When the SIM card 5 is inserted into a new mobile phone 50 and the sub ID code 16a is not registered in the vehicle, the in-vehicle device 20 does not verify the sub ID code. When the verification of the main ID code is established, but the verification of the sub ID code is not established, the in-vehicle control device 21 transmits a registration trigger signal through the in-vehicle communication unit 22.

  When the portable control device 11 receives the registration trigger signal through the portable communication unit 12, the portable control device 11 requests the user to input a personal identification number as in the fourth embodiment. Hereinafter, similarly to the fourth embodiment, the sub ID code 16a of the mobile phone 50 is stored in the memory 21a of the in-vehicle device 20 through the registration request signal and the registration command signal. Thereby, it becomes possible to switch the locking / unlocking state of the vehicle door through the new mobile phone 50.

As described above, according to the embodiment described above, the following operational effects can be obtained in addition to the operational effects of (5) and (6) of the fourth embodiment.
(8) In the in-vehicle device 20, when only the sub ID code included in the response signal is not verified, a registration trigger signal is transmitted to the mobile phone 50. When the mobile phone 50 receives the registration trigger signal, the mobile phone 50 transmits a registration request signal on the assumption that its own sub ID code is not registered in the in-vehicle device 20. Thereby, the registration of the sub ID code of the mobile phone 50 is performed as in the fourth embodiment. As described above, when the unlocking of the vehicle door is attempted through the unregistered mobile phone 50, the sub ID code is registered. Therefore, when the vehicle door is not locked or unlocked through the mobile phone 50, the registration of the sub ID code is suppressed. As a result, careless registration of the secondary ID code is suppressed, and security is improved. In addition, it is possible to reduce communication and costs related to registration of the sub ID code.

In addition, the said embodiment can be implemented with the following forms which changed this suitably.
In the fourth and fifth embodiments, the registration work of the main ID code and the personal identification number to the memory 41a of the center 40 is performed at the dealer. However, it may be performed from the mobile phone 50 through a communication network. Also in this case, it is preferable that the registration work can be performed only by the user of the specific mobile phone through the input of the password.

  -In 4th and 5th embodiment, the input of a PIN was requested | required as a personal authentication means. However, the identity authentication means is not limited to this as long as the identity authentication is possible. For example, biometric authentication such as fingerprint authentication may be used. In this case, the mobile phone 50 acquires biological information through a biological information acquisition unit (not shown). For example, in the case of fingerprint authentication, it is a fingerprint sensor. The mobile phone 50 transmits the acquired biometric information to the center 40 by including it in the registration request signal instead of the password. The biometric information of the authorized user is registered in advance in the memory 41a of the center 40. Then, the biometric information is collated in the same manner as the password.

  In addition, the mobile phone 50 may collate a password or biometric information. In this case, when it is determined that the collation is established, the mobile phone 50 includes that fact in the registration request signal instead of the password. In this configuration, it is not necessary to register a password or the like in the center 40 in advance.

  -In 4th and 5th embodiment, the vehicle equipment 20 added the serial number (sub ID code 16a) memorize | stored in the memory 21a based on the received registration command signal. However, the serial number may be overwritten. In this case, the serial number stored in the memory 21a is deleted. In this configuration, since the number of mobile phones that can be used as electronic keys can be limited, security can be maintained.

  In the fourth embodiment, when the mobile phone 50 recognizes that a new SIM card 5 has been inserted, it waits for the input of a password and automatically communicates with the in-vehicle device 20 via the center 40. It was. However, the insertion of a new SIM card 5 may not be used as a trigger, and communication with the in-vehicle device 20 may be performed manually via the center 40 by operating the switch group 15 of the mobile phone 50.

  In the fourth and fifth embodiments, the registration command signal transmitted from the center 40 to the in-vehicle device 20 includes only the sub ID code 16a (serial number). However, the registration command signal may further include a main ID code. Here, a plurality of types of main ID codes may be stored in the memory 21a depending on the master key, the sub key, and the like. In this case, the sub ID code can belong to the same main ID code stored in the memory 21a as the main ID code included in the registration command signal.

  In the fourth and fifth embodiments, the personal authentication is performed in the mobile phone 50 and the center 40, but the personal authentication may be performed in the in-vehicle device 20. In this case, the in-vehicle device 20 includes a biometric authentication device such as a fingerprint center. The in-vehicle device 20 stores the sub ID code included in the registration command signal in the memory 21a only when the registration command signal is received in a state where the validity of the user is confirmed through the biometric authentication device. In this configuration, the personal identification number can be omitted from the registration request signal.

  In the third embodiment, the image data of the user's face is stored in the SIM card 5 as the sub ID code 16a. However, the image data of the user's face may be stored as the sub ID code 16a in the memory 21a of the in-vehicle control device 21 instead of the SIM card 5. In this case, image data of the user's face as the sub ID code 16a is designated in the internal memory 16, and a response signal including the sub ID code 16a and the main ID code is transmitted. When the verification of the main ID code is established, the in-vehicle control device 21 performs face authentication as verification of the sub ID code. That is, when it is authenticated that the image data included in the response signal and the image data stored in the memory 21a are image data of the face of the same person, that is, when face authentication is established, the unlocking / unlocking state of the vehicle door is Can be switched. Also in this configuration, the same effect as that of the third embodiment can be obtained.

-In 3rd Embodiment, face authentication was performed as collation of a sub ID code. However, the biometric authentication is not limited to face authentication, but may be other fingerprints, vein authentication, or the like.
In the first to third embodiments, the data stored in the internal memory 16 may be locked to restrict data export. As a result, it is possible to place certain restrictions on the selection data including the sub ID code 16a being copied to a storage medium such as a memory card different from the SIM card 5 or attached to an e-mail. The certain restriction may be, for example, that copy of selected data or the like may be completely disabled, or a password input may be requested at the time of copying or the like. Thereby, the taking out of the sub ID code 16a is restricted, and the security can be further improved.

  In the first to fifth embodiments, the vehicle door can be locked and unlocked through wireless communication between the mobile phone 10 and the vehicle-mounted device 20, but it is also possible to start the engine or the like. Specifically, when the in-vehicle communication unit 22 is provided in the vicinity of the driver's seat and the mobile phone 10 is held over the in-vehicle communication unit 22, both of the main ID code and the sub ID code are verified, the engine start permission state It becomes. In this state, the engine can be started by operating an engine switch provided near the driver's seat.

  In the first to fifth embodiments, the short-range wireless communication is automatically performed by holding the mobile phone 10 over the in-vehicle communication unit 22, and the vehicle door can be locked and unlocked through this communication. Was adopted. However, the present invention is not limited to this as long as it is an electronic key system. For example, a wireless key to which a request signal for requesting execution of door locking / unlocking in one direction is transmitted from the mobile phone 10 to the in-vehicle device 20 through operation of the switch group 15. It is good also as a system. This request signal includes a main ID code, a sub ID code, and a command code indicating the requested control content. Further, when a request signal for requesting a response is transmitted from the in-vehicle device 20 to the mobile phone 10 inside or outside the vehicle interior, when the mobile phone 10 enters an area where the request signal is transmitted, a response signal is transmitted from the mobile phone 10. A so-called operation free key system may be used. The in-vehicle control device 21 performs locking and unlocking of the door based on the determination result of the validity of the response signal.

In the first to fifth embodiments, the main ID code is registered in the SIM card 5. However, the external memory is not limited to the SIM card 5.
In the first to third embodiments, the sub ID code 16a constitutes a part of music data or image data. However, the data only for generating the sub ID code is created and used. The sub ID code 16a may be used.

  -In 1st-5th embodiment, although the mobile telephone with an electronic key function was applied to the electronic key system for vehicles, you may apply not only for vehicles but for the electronic key system for houses, for example .

Next, the technical idea that can be grasped from the embodiment will be described together with the effects.
(B ) A camera is provided, and image data of a user's face photograph is stored as the sub ID code in the external memory, and the control device stores image data captured through the camera as a sub ID code in the internal memory. A mobile phone with an electronic key function that stores and collates through face authentication of image data between the sub ID code of the external memory and the sub ID code of the internal memory.

  According to the configuration, face authentication is performed between the image data as the sub ID code stored in the external memory and the image data as the sub ID code stored in the internal memory, and the face authentication is established. That is, when the face of the same person is shown in the image data, it is possible to transmit a radio signal on the assumption that the sub ID code has been verified. As described above, in the case of face authentication, it is possible to save face image data in the internal memory and transmit a wireless signal by easily taking a face photograph with a mobile phone camera as necessary. .

  DESCRIPTION OF SYMBOLS 5 ... SIM card (external memory), 10,50 ... Mobile phone, 11 ... Portable side control device, 16 ... Internal memory, 16a ... Sub ID code, 20 ... In-vehicle device, 21 ... In-vehicle control device, 30 ... Camera (biological Information acquisition unit), 40 ... center.

Claims (6)

An external memory configured to be detachable from the main body of the mobile phone and storing a main ID code;
An internal memory in which various data is stored in a state where a part of the various data is designated as a sub ID code;
A control device that transmits a radio signal including the main ID code for requesting control of a control target;
The control target can be controlled on condition that the sub ID code exists in the internal memory and that the validity of the main ID code included in the radio signal is confirmed on the control target side. ,
The sub ID code is a mobile phone with an electronic key function which is a part of data used in the function of the mobile phone. The mobile phone with an electronic key function according to claim 1,
The control device transmits the wireless signal including the sub ID code,
A mobile phone with an electronic key function in which control of the control target is executed when validity of the main ID code and the sub ID code included in the radio signal is confirmed on the control target side. The mobile phone with an electronic key function according to claim 1,
The sub-ID code is stored in the external memory,
The control device is capable of transmitting a radio signal including the main ID code on condition that the sub ID code read from the internal memory and the sub ID code of the external memory are collated. Mobile phone. In the mobile phone with an electronic key function according to any one of claims 1 to 3 ,
A biometric information acquisition unit for acquiring biometric information;
A mobile phone with an electronic key function, wherein at least part of biometric information acquired through the biometric information acquisition unit is stored in the internal memory as the sub ID code. The mobile phone with an electronic key function according to claim 2,
The main ID code is stored in the control target,
In a state where the external memory is attached to a new mobile phone, the control device of the mobile phone sends a registration request signal including the main ID code and the sub ID code of the new mobile phone stored in the external memory. Wirelessly sent to the center,
When the center confirms the validity of the main ID code included in the registration request signal and recognizes that the user is a legitimate user by authenticating the user of the new mobile phone, Storing the sub ID code in the control object through wireless transmission of a registration command signal including the ID code;
In the control object, when both the main ID code and the sub ID code included in the radio signal from the new mobile phone and the main ID code and the sub ID code stored in itself are verified, the main ID A mobile phone with an electronic key function in which control is executed when the validity of the code and the sub ID code is confirmed. The mobile phone with an electronic key function according to claim 5 ,
When the control object can confirm the validity of the main ID code included in the wireless signal and cannot confirm the validity of the sub ID code, it wirelessly transmits a registration trigger signal to the new mobile phone,
The mobile phone is a mobile phone with an electronic key function that, when receiving the registration trigger signal, transmits the registration request signal to the center.

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