JP2007113306A - Keyless entry system and its method, key information management device, vehicle, key issue method, and vehicle operation control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a keyless entry system allowing a user to use it easily and capable of canceling check of unnecessary use conditions. <P>SOLUTION: This key information management device 10 issues a master key, a copy key, and use limit of the copy key, transmits the master key to a vehicle 30 and a portable terminal unit 20, and transmits the copy key and use limit information of the copy key to a portable terminal unit 21. A key information storage device 31 stores the master key issued by the key information management device 10 and the use limit information of the copy key transmitted by the terminal unit 21. A vehicle controller 34 operates a driving part 33 when a key in the master key received from the portable terminal unit 20 is in the key information storage device 31 and operates the driving part 33 when a key in the copy key received from the portable terminal unit 21 is in the key information storage device 31 and use of the copy key is within use limit of the copy key in the key information storage device 31. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a keyless entry system and method, a key information management device, a vehicle, a key issuing method, and a vehicle operation control method, and more particularly, to a keyless entry system and method for controlling the operation of a vehicle using a mobile terminal, and a key. The present invention relates to an information management device, a vehicle, a key issuing method, and a vehicle operation control method.

  Conventionally, a user has to carry a car key when using the car.

  When the user loses the key, he / she requests the dealer to reissue the key, but it takes time until the key is reissued, and the user cannot use the car during that time. Also, if the user locks the key in the car, the user has to call a road service provider to open the door.

  Patent Document 1 (Japanese Patent Laid-Open No. 2004-187096) describes a keyless entry system that uses a mobile phone as a key of an automobile.

  If the user of this system loses the mobile phone that stores the key information, the user transmits an invalid signal for changing the key information to the security service site to change the key information. The changed key information is provided to the substitute mobile phone.

  The security service site authenticates the user of the substitute mobile phone using the user password, and then provides the changed key information to the substitute mobile phone.

  Thereafter, the user unlocks the car using the updated key information stored in the substitute mobile phone.

  Therefore, even if the user loses the mobile phone that is the key of the car, the user can immediately use the substitute mobile phone as the car key.

  Japanese Patent Laid-Open No. 2002-31068 discloses a house monitoring system that uses a mobile phone as a key.

  In this house monitoring system, the monitoring control device provides authentication information as a key to the mobile phone together with the expiration date of the authentication information. The user uses the authentication information provided to the mobile phone as a key until the expiration date.

When the expiration date of the authentication information expires, the monitoring control device generates new authentication information and wirelessly transmits the expiration date together with the new authentication information to the mobile phone.
JP 2004-187096 A JP 2002-31068 A

  In the keyless entry system described in Patent Document 1, even if a lost mobile phone is found, the key information stored in the mobile phone cannot be used as a car key. Therefore, this system is not easy to use for the user.

  Moreover, in the house monitoring system described in Patent Document 2, the monitoring and control device must check the expiration date of all keys. Therefore, in this system, the usage condition of the key is checked up to the key that does not need to be checked for the validity condition.

  An object of the present invention is to provide a keyless entry system, a key management device, a vehicle, a keyless entry method, a key issuance method, and a vehicle operation control method that are easy for the user to use and that can eliminate unnecessary usage condition checks. .

  In order to achieve the above object, a keyless entry system of the present invention includes a vehicle, a key information management device that issues a master key and a copy key including a key for operating the vehicle, and a first portable device that receives the master key. A keyless entry system including a terminal and a second portable terminal that accepts the copy key, wherein the key information management device issues a use limit of the copy key when issuing the copy key; The first portable terminal transmits the master key issued by the key information management device to the vehicle, and the second portable terminal determines the copy key issued by the key information management device and its usage limit. The vehicle transmits to the vehicle, and the vehicle executes an operation corresponding to the master key and the copy key, and the key information management device. When the master key is received from the first portable terminal, the master key is included in the master key, the storage unit storing the copy key usage limit transmitted by the second terminal device, and the master key When the key is stored in the storage unit, the driving unit is operated, and when the copy key is received from the second portable terminal, the key included in the copy key is stored in the storage unit, And a control unit that operates the driving unit when the usage of the copy key is within the usage limit of the copy key stored in the storage unit.

  The keyless entry method of the present invention includes a vehicle, a key information management device that issues a master key and a copy key including a key for operating the vehicle, a first portable terminal that receives the master key, and the copy key. A keyless entry method performed by a keyless entry system including a master key issuance step in which the key information management device issues the master key, and the vehicle obtains the master key. A master key vehicle storing step for receiving and storing; a master key receiving step for receiving the master key by the first portable terminal; and a master key transmitting step for transmitting the master key by the first portable terminal; The vehicle receives the master key from the first portable terminal. Then, when a key in the master key is stored, a master key operation step for executing a predetermined operation, and the key information management device issues the copy key and a use limit of the copy key. A copy key issuing step, a copy key receiving step in which the second portable terminal accepts the copy key and a usage limit of the copy key, and a usage limit of the copy key in the second portable terminal. A use limit transmission step for transmitting, a use limit storage step for the vehicle to accept and store a use limit for the copy key, a copy key transmission step for the second portable terminal to transmit the copy key, and When the vehicle receives the copy key from the second portable terminal, the key in the copy key is stored, and the use of the copy key is stored. And a copy key operation step of executing the predetermined operation in the case of the credit line of the copy key being.

  According to the above invention, no usage restrictions are imposed on the master key, and usage restrictions are imposed on the copy key.

  For this reason, the user can use the master key without restriction, and the vehicle does not need to check the usage condition of the master key, and the possibility that the copy key is illegally used can be reduced.

  Preferably, the master key includes a master key identifier, and the copy key includes a copy key identifier.

  According to the above invention, the master key and the copy key can be reliably identified.

  The usage limit is an effective number and an expiration date of the copy key, and it is preferable that the effective number of the copy key is updated according to the usage number of the copy key.

  According to the above invention, it is possible to restrict the use of the copy key based on the number of times the copy key is valid and the expiration date.

  The key information management device of the present invention provides a master key for operating the vehicle to the vehicle and the first portable terminal, and provides a copy key for operating the vehicle to the second portable terminal. An issuing unit that issues the master key, the copy key, and a usage limit of the copy key, and a master key issued by the issuing unit is provided to the vehicle and the first portable terminal. And a providing unit that provides the second portable terminal with the copy key issued by the issuing unit and the use limit of the copy key.

  The key issuing method of the present invention provides a key information management for providing a master key for operating a vehicle to the vehicle and the first portable terminal, and providing a copy key for controlling the vehicle to the second portable terminal. A key issuing method performed by an apparatus, wherein a master key issuing step for issuing the master key, a master key providing step for providing the master key to the vehicle and the first portable terminal, the copy key, and the copy A copy key issuing step for issuing a key usage limit; and a copy key providing step for providing the copy key and the copy key usage limit to a second portable terminal.

  According to the above invention, it is possible to issue a master key that is not subject to usage restrictions and a copy key that is subject to usage restrictions.

  For this reason, the user can use the master key without restriction, the vehicle does not have to check the usage condition of the master key, and the possibility that the copy key is illegally used is reduced. It becomes possible.

  Further, the vehicle of the present invention receives a master key including a key for operating the vehicle issued by the key information management device from the key information management device and the first portable terminal, and receives the key issued by the key information management device. A copy key including a copy key and a use limit of the copy key from a second portable terminal, the drive unit executing an operation corresponding to the master key and the copy key, and the master received from the key information management device A storage unit that stores a key, a use limit of a copy key received from the second portable terminal, and a key in the master key is stored in the storage unit when the master key is received from the first portable terminal. If the drive unit is operated when stored in the storage area and the copy key is received from the second portable terminal, the key in the copy key is received. There are stored in the storage unit, and includes a control unit for use of the copy key operates the drive unit in the case of the credit line of the copy key stored in the storage unit.

  Further, the vehicle operation control method of the present invention receives a master key including a key for operating a vehicle issued by the key information management device from the key information management device and the first portable terminal, and the key information management device issues the master key. A vehicle key control method performed by a vehicle that receives a copy key including the key and a use limit of the copy key from a second portable terminal, the master key storing step storing the master key received from the key information management device; When receiving the master key from the first portable terminal, a master key operation step for executing a predetermined operation when the key in the master key is stored, and a copy received from the second portable terminal A usage limit storing step for storing a key usage limit; and receiving the copy key from the second portable terminal. It is saved key in the copy key, and includes a copy key operational steps utilized in the copy key to perform the predetermined operation in the case of the credit line of the copy key being the saved.

  According to the above invention, no usage restrictions are imposed on the master key, and usage restrictions are imposed on the copy key.

  For this reason, the user can use the master key without restriction, and the vehicle does not need to check the usage condition of the master key, and the possibility that the copy key is illegally used can be reduced.

  According to the present invention, the user can use the master key without restriction, and it is not necessary to check the usage condition of the master key, and the possibility that the copy key is used illegally can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a keyless entry system according to an embodiment of the present invention.

  In FIG. 1, the keyless entry system includes a key information management device 10, a first mobile terminal 20, a second mobile terminal 21, and a vehicle 30.

  The key information management device 10, the portable terminals 20 and 21, and the vehicle 30 can be connected via a network 40 such as the Internet.

  The key information management device 10 is used by a dealer who sells the vehicle 30 such as a dealer. The portable terminal (first portable terminal) 20 is carried by the owner of the vehicle 30 (hereinafter referred to as “user A”). The mobile terminal (second mobile terminal) 21 is used by the user A.

  The key information management apparatus 10 issues master key information (master key), copy key information (copy key), and usage restrictions on copy key information. The master key information and the copy key information include a key value (key) for controlling the vehicle 30.

  FIG. 2 is a block diagram illustrating an example of the key information management apparatus 10.

  In FIG. 2, the key information management apparatus 10 includes a communication unit 101, a storage device 102, and a processing device 103.

  The communication unit 101 is an example of a providing unit, is connected to the network 40, and transmits / receives data to / from the mobile terminal 20, the mobile terminal 21, and the vehicle 30.

  The storage device 102 stores various data.

  FIG. 3 is an explanatory diagram showing an example of user A information stored in the storage device 102.

  As shown in the figure, the information of the user A includes the terminal ID of the mobile terminal 20, the user name and password used when the user A connects to the key information management apparatus 10, the key ID, the key presence limit value, and the copy It includes the key ID, the effective number and expiration date, which are copy key usage restriction information, and the mail address of the portable terminal 21 storing the copy key.

  The key ID is master key information and includes a master key identifier (“M” in FIG. 3) and a key value (“001ABC” in FIG. 3).

  The copy key ID is copy key information and includes a copy key identifier (“C” in FIG. 3) and a key value (“001ABC” in FIG. 3).

  The key value included in the key ID is the same as the key value included in the copy key ID, and these are keys for controlling the operation of the vehicle 30.

  The key value is set to a value different from the key values of other users.

  The key existence limit value is a limit value of the total number of keys including the master key and the copy key. In other words, the key existence limit value is a copy key creation limit value.

  In addition, the storage device 102 may further include user A's address / name / phone number, mobile terminal 20 e-mail address, user A's license as necessary for user identification and user authentication and contact with the user. Information such as a number may be stored.

  Returning to FIG. 2, the processing device 103 controls the entire key information processing device 10.

  The processing device 103 is an example of an issuing unit, and issues master key information, copy key information, and copy key information usage restriction information, and the master key information, the copy key information, and the copy key information. Usage restriction information is stored in the storage device 102 (see FIG. 3).

  The communication unit 101 transmits the issued master key information to the vehicle 30 and the portable terminal 20, and transmits the issued copy key information and usage restriction information of the copy key information to the portable terminal 21.

  Returning to FIG. 1, the portable terminal 20 includes an IC chip 205 that stores master key information.

  The portable terminal 21 includes an IC chip 205 that stores copy key information and copy key information use restriction information.

  FIG. 4 is a block diagram illustrating an example of the mobile terminals 20 and 21. In the present embodiment, it is assumed that the mobile terminal 20 and the mobile terminal 21 have the same configuration. For this reason, only the portable terminal 20 will be described below.

  In FIG. 4, the mobile terminal 20 is, for example, a mobile phone, and includes a communication unit 201, a display unit 202, a storage unit 203, a call unit 204, an IC chip 205, an operation unit 206, a processing unit 207, a bus 208, an antenna 209, and 210 is included.

  The mobile terminal 20 is not limited to a mobile phone and can be changed as appropriate.

  The communication unit 201 communicates with the key information management apparatus 10 via the antenna 209 and the network 40. For example, the communication unit 201 receives master key information from the key information management apparatus 10.

  The display unit 202 is an LCD, for example, and displays various information.

  The storage unit 203 is a semiconductor memory, for example, and stores various information.

  The call unit 204 includes a microphone, a receiver, and a voice processing device.

  The IC chip 205 stores key information, specifically, master key information received from the key information management apparatus 10.

  Note that the IC chip 205 of the portable terminal 21 stores the copy key information received from the key information management apparatus 10 and the usage restriction information of the copy key information.

  For example, the IC chip 205 is a non-contact IC chip including a non-volatile memory and a wireless communication chip, and transmits information stored in the non-volatile memory to the key information reader / writer 32 of the vehicle 30 in a non-contact manner.

  The operation unit 206 receives various information from the user. The operation unit 206 is, for example, a key button for a user to input information.

  The processing unit 207 performs overall control and data processing of the mobile terminal 20.

  The bus 208 connects each part.

  The antenna 210 transmits the master key information stored in the IC chip 205 to the vehicle 30.

  The antenna 210 of the mobile terminal 21 transmits to the vehicle 30 copy key information stored in the IC chip 205 and use restriction information on the copy key information.

  Returning to FIG. 1, the vehicle 30 is an automobile whose operation is controlled by the mobile terminals 20 and 21, for example.

  The vehicle 30 includes a key information storage device 31, a key information reader / writer 32, a drive unit 33, and a vehicle control device 34.

  The key information storage device 31 is an example of a storage unit, and stores master key information received from the key information management device 10. The key information storage device 31 stores the copy key information received from the portable terminal 21 and the usage restriction information of the copy key information.

  The key information reader / writer 32 transmits / receives information to / from the IC chip 205 of the mobile terminals 20 and 21 by short-range wireless communication.

  The drive unit 33 performs an operation corresponding to the key value included in the master key information stored in the key information storage device 31. For example, the drive unit 33 is a door locking device of the vehicle 30. The drive unit 33 may be an engine control unit that drives 30 engines of the vehicle.

  The vehicle control device 34 is an example of a control unit, and controls the entire vehicle 30.

  When the vehicle control device 34 receives master key information from the key information management device 10 via the network 40, the vehicle control device 34 stores the master key information in the key information storage device 31.

  Further, when the key information reader / writer 32 receives the master key information from the portable terminal 20, the vehicle control device 34 determines whether or not the key value of the master key information is stored in the key information storage device 31.

  When the key value is stored in the key information storage device 31, the vehicle control device 34 operates the drive unit 33 to unlock the door of the vehicle 30, while the key value is the key information storage device 31. Otherwise, the door of the vehicle 30 is kept locked without operating the drive unit 33.

  Further, when the key information reader / writer 32 receives the usage restriction information on the copy key information from the portable terminal 21, the vehicle control device 34 stores the usage restriction information on the copy key information in the key information storage device 31.

  Further, when the key information reader / writer 32 receives the copy key information from the portable terminal 21, the vehicle control device 34 determines whether or not the key value of the copy key information is stored in the key information storage device 31.

  When the key value is stored in the key information storage device 31, the vehicle control device 34 stores the use of the copy key information (specifically, the number of uses and the date and time of use) in the key information storage device 31. It is determined whether it is within the usage limit indicated in the usage limit information of the copy key information being stored.

  The vehicle control device 34 is driven when the key value is stored in the key information storage device 31 and the use of the copy key information is within the use limit of the copy key information stored in the key information storage device 31. The part 33 is operated to unlock the door of the vehicle 30.

  On the other hand, the vehicle control device 34 does not store the key value in the key information storage device 31 or the use of the copy key information limits the use limit of the copy key information stored in the key information storage device 31. If it exceeds, the door of the vehicle 30 is kept locked without operating the drive unit 33.

  Next, the operation will be described.

  FIG. 5 is a flowchart for explaining the operation when user A uses a master key. Hereinafter, the operation when the user A uses the master key will be described with reference to FIG.

  First, the user A inputs a terminal ID, a user name, a password, and a key presence limit value to the key information management apparatus 10 when purchasing the vehicle 30.

  When the key information management device 10 receives the terminal ID, the user name, the password, and the key presence limit value, the key information management device 10 executes Step S101.

  In step S101, the processing device 103 of the key information management device 10 stores the terminal ID, the user name, the password, and the key presence limit value in the storage device 102 (see FIG. 3). The processing apparatus 103 will perform step S102, if they are preserve | saved.

  In step S <b> 102, the processing device 103 generates a key ID of the master key (see FIG. 3) and transmits the key ID to the vehicle 30 and the portable terminal 20. Further, the processing device 103 stores the key ID in the storage device 102. The key ID is master key information, that is, a master key.

  The vehicle control apparatus 34 of the vehicle 30 will perform step S103, if key ID is received. In step S <b> 103, the vehicle control device 34 stores the accepted key ID in the key information storage device 31.

  On the other hand, when receiving the key ID, the processing unit 207 of the mobile terminal 20 executes Step S104. In step S104, the processing unit 207 stores the accepted key ID in the IC chip 205.

  When using the vehicle 30, the user A causes the mobile terminal 20 to execute step S105.

  In step S <b> 105, the mobile terminal 20 transmits the key ID stored in the IC chip 205 from the antenna 210 to the vehicle 30.

  For example, when the IC chip 205 is configured by a non-contact IC chip used for RFID, the mobile terminal 20 is held by the user A over the key information reader / writer 32 provided on the door of the vehicle 30 or the like. Then, the IC chip 205 transmits the key ID, and the key ID is received by the vehicle 30.

  When receiving the key ID, the vehicle control device 34 of the vehicle 30 executes Step S106.

  In step S106, the vehicle control device 34 collates the key value in the received key ID with the key value in the key ID stored in the key information storage device 23.

  The vehicle control device 34 executes step S107 if the two match and the identifier in the received key ID indicates the master key (M), while if the two do not match, step S108 is executed. Execute. In addition, when the identifier in key ID has shown the copy key (C), the vehicle control apparatus 34 performs step S210 mentioned later.

  In step S107, the vehicle control device 34 operates the drive unit 33 to release the door lock.

  On the other hand, in step S108, the vehicle control device 34 notifies the key information management device 10 when a predetermined number of collation errors occur within a predetermined time, for example, when another person tries to release the door lock. To be notified.

  When receiving the error occurrence, the key information management apparatus 10 executes Step S109.

  In step S109, the processing device 103 of the key information management device 10 notifies the user A of the occurrence of an error by voice or mail.

  6 and 7 are flowcharts for explaining the operation when the copy key is used. Hereinafter, with reference to FIG. 6 and FIG. 7, an operation when the copy key is used such as when the user A loses the portable terminal 20 or when the user A lends the vehicle 30 to a friend will be described. To do.

  First, the user A informs the vehicle dealer that the copy key is to be used by telephone or the like, or connects to the key information management device 30 using the portable terminal 21 on which the IC chip 205 is mounted. The key information management device 10 is input with the mail address of the copy key terminal (specifically, the portable terminal 21), the number of times the copy key is valid, and the validity limit.

  When the processing apparatus 103 of the key information management apparatus 10 accepts the mail address of the copy key terminal, the valid number of valid copy keys, and the valid limit, it executes step S201.

  In step S201, the processing apparatus 103 stores the mail address of the copy key terminal, the number of valid copies, and the valid limit in the storage device 102 (see FIG. 3). The copy key valid count and valid limit are examples of copy key usage limit information. Note that the copy key use restriction information is not limited to these, and can be changed as appropriate.

  The processing apparatus 103 will perform step S202, if they are preserve | saved.

  In step S202, the processing apparatus 103 generates a copy key ID (see FIG. 3).

  However, if the number of copy key generations exceeds the key existence limit value, the processing apparatus 103 stops generating the copy key ID. The copy key ID is copy key information, that is, a copy key.

  When generating the copy key ID, the processing apparatus 103 executes step S203.

  In step S <b> 203, the processing device 103 generates a URL for downloading the copy key ID and the usage restriction information, and transmits a mail describing the URL from the communication unit 101 to the mail address of the mobile terminal 21. When the communication unit 101 transmits the mail, the mobile terminal 21 executes Step S204.

  In step S <b> 204, the processing unit 207 of the mobile terminal 21 receives the mail via the antenna 209 and the communication unit 201. When receiving the mail, the processing unit 207 executes step S205.

  In step S205, the processing unit 207 accesses the URL described in the mail.

  When the URL 103 is accessed, the processing unit 103 of the key information management apparatus 10 executes step S206.

  In step S <b> 206, the processing unit 103 requests the portable terminal 21 to input the user name and password of the user A information stored in the storage device 102. Thereafter, the processing unit 103 collates the user name and password transmitted from the portable terminal 21 with the user name and password of the user A information stored in the storage device 102.

  The processing unit 103 executes step S207 if they match, and completes the operation if they do not match.

  In step S <b> 207, the processing apparatus 103 transmits the copy key ID and the copy key usage restriction information (valid number and expiration date) to the mobile terminal 21.

  When receiving the copy key ID and the copy key usage restriction information, the processing unit 207 of the portable terminal 21 executes Step S208.

  In step S208, the processing unit 207 stores the copy key ID, the copy key usage restriction information, and the IC chip 205 (following FIG. 7).

  When the user A uses the vehicle 30 using the mobile terminal 21, the user A causes the mobile terminal 21 to execute step S209.

  In step S <b> 209, the mobile terminal 21 transmits the copy key ID stored in the IC chip 205 from the antenna 210 to the vehicle 30.

  In the case where the IC chip 205 is formed of a non-contact IC chip, when the portable terminal 21 is held over the key information reader / writer 32 provided on the door of the vehicle 30 or the like, the IC chip 205 is copied key ID. And the copy key ID is received by the vehicle 30.

  When the key information reader / writer 32 receives the copy key ID, the vehicle control device 34 of the vehicle 30 executes step S210.

  In step S210, the vehicle control device 34 compares the key value in the received ID with the key value stored in the key information storage device 31, and the key value is the same as the key value of the master key ID. And whether or not the received key (ID) is a copy key is determined based on the master / copy identifier.

  If the key value in the accepted ID does not match the key value of the master key ID, the key value is not valid, and the vehicle control device 34 ends the operation.

  On the other hand, when the key value in the accepted ID is the same as the key value of the master key ID and the identifier indicates the copy key (C), the vehicle control device 34 executes step S211.

  In step S <b> 211, the vehicle control device 34 checks whether or not the accepted copy key ID has been saved in the key information storage device 31.

  If the accepted copy key ID is not stored in the key information storage device 31, the vehicle control device 34 sends the usage restriction information (valid number of times and expiration date) via the key information reader / writer 32 to the portable terminal. 21.

  When the portable terminal 21 receives the request, it executes Step S213.

  In step S <b> 213, the IC chip 205 of the mobile terminal 21 transmits the usage restriction information stored in the IC chip 205.

  When the key information reader / writer 32 receives the usage restriction information, the vehicle control device 34 executes step S214.

  In step S214, the vehicle control device 34 stores the use restriction information in the key information storage device 31 together with the copy key ID. When the vehicle control device 34 stores the use restriction information and the copy key ID in the key information storage device 31, the vehicle control device 34 executes Step S216.

  In step S216, the vehicle control device 34 operates the drive unit 33 to release the door lock.

  On the other hand, when the copy key ID has been stored in step S211, the vehicle control device 34 executes step S215.

  In step S215, the vehicle control device 34 determines whether or not the usage status of the copy key ID satisfies the usage restriction information condition.

  If the usage status of the copy key ID satisfies the conditions of the usage restriction information, the vehicle control device 34 executes step S216 to release the door lock.

  The vehicle control device 34 executes Step S217 after releasing the door lock.

  In step S217, the vehicle control device 34 updates the usage restriction information, such as reducing the number of effective times, and ends.

  In the present embodiment described above, a reader / writer for engine control may be provided in the vehicle so that the engine can be started when a key ID is transmitted from the portable terminal.

  According to the present embodiment, in a system in which key information for unlocking a car is input to a mobile phone and the key can be opened / closed using RFID, the network is lost when the key (mobile phone) is lost. The key information can be copied to another mobile phone through the key, and the key can be opened and closed with usage restrictions.

  According to the present embodiment, the following effects can be obtained.

  Since the vehicle key information is stored in the portable terminal, the user does not have to carry a single key.

  Further, since the key information can be stored in another portable terminal via the network, the door lock can be released using the other portable terminal even when the key or the portable terminal is lost.

  Further, when storing the copy key in another portable terminal, authentication can be performed with a user name and password that only the user A having the master key knows, and the number of valid copies, number of valid times, and expiration date can be set. Therefore, sufficient security is maintained.

  The key information management device 10 and the vehicle 30 impose usage restrictions on the master key and do not impose usage restrictions on the copy key.

  For this reason, the user can use the master key without restriction, and the vehicle does not need to check the usage condition of the master key, and the possibility that the copy key is illegally used can be reduced.

  In this embodiment, the master key includes a master key identifier, and the copy key includes a copy key identifier. In this case, the master key and the copy key can be reliably identified.

  In the present embodiment, the usage limit is the valid number of times and valid period of the copy key. In this case, it is possible to restrict the use of the copy key based on the number of times the copy key is valid and the expiration date.

  Further, the key information management apparatus 10 issues a master key that is not subject to usage restrictions and a copy key that is subject to usage restrictions. For this reason, the user can use the master key without restriction, the vehicle does not have to check the usage condition of the master key, and the possibility that the copy key is illegally used is reduced. It becomes possible.

  Further, the vehicle 30 imposes usage restrictions on the copy key without imposing usage restrictions on the master key. For this reason, the user can use the master key without restriction, and the vehicle does not need to check the usage condition of the master key, and the possibility that the copy key is illegally used can be reduced.

  In addition, a present Example may be changed as follows.

  The key information management device 10 may transmit the copy key ID to the vehicle 30 and store it in the key information storage device 31 in advance. In that case, by making the key value of the copy key different from the key value of the master key, the master key is decrypted by some means, and the vehicle 30 is prevented from being illegally used by the decrypted master key. Can do.

  In the embodiment described above, the illustrated configuration is merely an example, and the present invention is not limited to the configuration.

It is the block diagram which showed the keyless entry system of one Example of this invention. 3 is a block diagram illustrating an example of a key information management device 10. FIG. 4 is an explanatory diagram illustrating an example of information on a user A stored in a storage device 102. FIG. 3 is a block diagram showing an example of mobile terminals 20 and 21. FIG. It is a flowchart for demonstrating operation | movement of this keyless entry system. It is a flowchart for demonstrating operation | movement of this keyless entry system. It is a flowchart for demonstrating operation | movement of this keyless entry system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Key information management apparatus 101 Communication part 102 Storage device 103 Processing apparatus 20 Portable terminal 201 Communication part 202 Display part 203 Storage part 204 Calling part 205 IC chip 206 Operation part 207 Processing part 208 Bus 209 Antenna 210 Antenna 21 Portable terminal 30 Vehicle 31 Key information storage device 32 Key information reader / writer 33 Drive unit 34 Vehicle control device 40 Network

Claims (10)

A vehicle, a key information management device that issues a master key including a key for operating the vehicle and a copy key, a first portable terminal that accepts the master key, and a second portable terminal that accepts the copy key. Including keyless entry system,
When the key information management device issues the copy key, it also issues a usage limit for the copy key,
The first portable terminal transmits the master key issued by the key information management device to the vehicle,
The second portable terminal transmits the copy key issued by the key information management device and its use limit to the vehicle,
The vehicle is
A drive unit that performs an operation corresponding to the master key and the copy key;
A storage unit for storing a master key issued by the key information management device and a use limit of a copy key transmitted by the second terminal device;
When the master key is received from the first portable terminal, the drive unit is operated when the key included in the master key is stored in the storage unit, and the copy from the second portable terminal When the key is received, the drive unit is operated when the key included in the copy key is stored in the storage unit and the use of the copy key is within the use limit of the copy key stored in the storage unit. A keyless entry system including a control unit. In the keyless entry system according to claim 1,
The master key includes a master key identifier;
The keyless entry system, wherein the copy key includes a copy key identifier. In the keyless entry system according to claim 1 or 2,
The usage limit is the number of times and the expiration date of the copy key,
The control unit is a keyless entry system that updates the effective number of times of the copy key according to the number of times of use of the copy key. A key information management device for providing a master key for operating a vehicle to the vehicle and the first portable terminal, and providing a copy key for operating the vehicle to a second portable terminal,
An issuing unit for issuing the master key, the copy key, and a usage limit of the copy key;
A providing unit that provides the master key issued by the issuing unit to the vehicle and the first portable terminal, and provides a copy key issued by the issuing unit and a usage limit of the copy key to the second portable terminal. And a key information management device. A master key including a key for operating the vehicle issued by the key information management device is received from the key information management device and the first portable terminal, and a copy key including the key issued by the key information management device and the copy key A vehicle that accepts a usage limit from a second mobile terminal,
A drive unit that performs an operation corresponding to the master key and the copy key;
A storage unit for storing a master key received from the key information management device and a use limit of a copy key received from the second portable terminal;
When the master key is received from the first portable terminal, the drive unit is operated when the key in the master key is stored in the storage unit, and the copy key is received from the second portable terminal. When the key is stored in the storage unit and the usage of the copy key is within the usage limit of the copy key stored in the storage unit, the control unit operates the driving unit. And a vehicle including the part. A vehicle, a key information management device that issues a master key including a key for operating the vehicle and a copy key, a first portable terminal that accepts the master key, and a second portable terminal that accepts the copy key. A keyless entry method performed by a keyless entry system including:
A master key issuing step in which the key information management device issues the master key;
A master key vehicle storing step in which the vehicle receives and stores the master key;
A master key receiving step in which the first portable terminal receives the master key;
A master key transmission step in which the first portable terminal transmits the master key;
When the vehicle receives the master key from the first portable terminal, a master key operation step of executing a predetermined operation when the key in the master key is stored;
A copy key issuing step in which the key information management device issues the copy key and a usage limit of the copy key;
A copy key receiving step in which the second portable terminal receives the copy key and a usage limit of the copy key;
A usage limit transmission step in which the second portable terminal transmits a usage limit of the copy key;
A use limit storing step in which the vehicle receives and stores a use limit of the copy key;
A copy key transmission step in which the second portable terminal transmits the copy key;
When the vehicle receives the copy key from the second portable terminal, the key in the copy key is stored, and the use of the copy key is within the usage limit of the stored copy key. A keyless entry method including a copy key operation step of executing the predetermined operation. The keyless entry method according to claim 6,
The master key includes a master key identifier;
The keyless entry method, wherein the copy key includes a copy key identifier. The keyless entry method according to claim 6 or 7,
The usage limit is the number of times and the expiration date of the copy key,
A keyless entry method including an updating step of updating an effective number of times of the copy key according to the number of times the copy key is used. A key issuing method performed by a key information management apparatus that provides a master key for operating a vehicle to the vehicle and the first portable terminal, and provides a copy key for controlling the vehicle to a second portable terminal,
A master key issuing step for issuing the master key;
A master key providing step of providing the master key to the vehicle and the first portable terminal;
A copy key issuing step for issuing the copy key and a use limit of the copy key;
Providing a copy key and a copy key providing step of providing a copy key usage limit to a second portable terminal. A master key including a key for operating the vehicle issued by the key information management device is received from the key information management device and the first portable terminal, and a copy key including the key issued by the key information management device and the copy key A vehicle operation control method performed by a vehicle that accepts a usage limit from a second portable terminal,
A master key storing step for storing a master key received from the key information management device;
When receiving the master key from the first portable terminal, a master key operation step of executing a predetermined operation when the key in the master key is stored;
A usage limit storing step of storing a usage limit of the copy key received from the second portable terminal;
When the copy key is received from the second portable terminal, the predetermined operation is performed when the key in the copy key is stored and the use of the copy key is within the use limit of the stored copy key. And a copy key operation step for executing the vehicle operation control method.

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