JP2007231654A - Cellular phone terminal unit and electronic key device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cellular phone terminal unit and an electronic key device capable of locking or unlocking a plurality of vehicles electronically by using one cellular phone terminal unit. <P>SOLUTION: This cellular phone terminal unit 7 reads distinguishing codes of a plurality of radio tags 1-1 to 1-n to which the distinguishing codes being different from each other are allotted, encrypts one type of distinguishing information constituted by combining a plurality of read distinguishing codes, and transmits this encrypted information. This electronic key device stores the distinguishing information decoded after this electronic key device receives the encrypted information transmitted from the cellular phone terminal unit 7 and locks or unlocks the vehicles when this electronic key device receives the encrypted information which agrees with the stored distinguishing information after decoding from the cellular phone terminal unit 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is used in an apparatus that electronically locks or unlocks a two-wheeled vehicle or an automobile. In particular, the present invention relates to a technique using a mobile phone terminal device as a key.

  Recent mobile phone terminal devices have various functions in addition to the function of performing telephone communication. The range of functions exceeds the range of communication functions such as mail communication, videophone, and web browsing. And has become a function as electronic money.

  For example, the proposal of patent document 1 is a proposal of unlocking the key of a two-wheeled vehicle using the identification information transmitted from a mobile phone terminal device. Further, the proposal of Patent Document 2 uses the secret key possessed by the mobile phone terminal device and the public key possessed by the locking / unlocking control device with which the mobile phone terminal device communicates to provide a security effect in the keyless entry system of the automobile. It is a proposal to increase.

  By using the mobile phone terminal device as a vehicle key in this way, the user can obtain the convenience of not having to carry the vehicle key.

JP 2006-16845 A JP 2006-9333 A JP 2003-306186 A JP-A-2004-178383

  In the usage form of the mobile phone terminal device proposed in Patent Document 1 or 2 described above, the identification information or secret key of one mobile phone terminal device is limited to a predetermined one. Therefore, one mobile phone terminal device cannot be used as a key for a plurality of vehicles. Therefore, for example, assuming a user who owns a motorcycle and a car and uses them by transiting them, even if the car can use the mobile phone terminal device as a key, the car key needs to be carried around. The convenience of substituting a car key by a mobile phone terminal device is halved.

  Of course, if a plurality of storage media such as a memory card that can be attached to and detached from the mobile phone terminal device are prepared and the identification information or the secret key is written in advance in the storage medium and then exchanged, one mobile phone terminal device can be connected to a plurality of vehicle Although it can be used as a key, in this case, it is necessary to carry a plurality of recording media, and it takes time to exchange the recording media. Therefore, the convenience of not having to carry the key disappears due to the hassle of carrying and replacing the recording medium. Therefore, usage forms using such a plurality of recording media are excluded here.

  The present invention has been made under such a background, and a mobile phone terminal capable of electronically locking or unlocking a plurality of vehicles using a single mobile phone terminal device. An object is to provide a device and an electronic key device.

  Various proposals have been made for theft prevention of motorcycles such as bicycles and motorcycles or automobiles. For example, in the proposal of Patent Document 3, early detection of a stolen bicycle is realized by attaching an RFID tag (hereinafter referred to as a wireless tag) to the bicycle. Alternatively, in the proposal of Patent Document 4, wireless tags are attached to the main parts of the motorcycle, these wireless tags are monitored, and if any of them is not detected, it is determined that the parts have been stolen and an alarm is issued. Theft monitoring by parts is realized by issuing Furthermore, the theft detection result can be notified to the mobile phone.

  The present invention pays attention to the proposal of Patent Document 4, and the mobile phone terminal device of the present invention includes a wireless tag information reading unit that reads identification codes of a plurality of wireless tags each assigned a different identification code, and the wireless tag information. Encryption means for encrypting one piece of identification information configured by combining a plurality of identification codes read by the reading means, and encrypted information transmission for transmitting the encrypted information generated by the encryption means Means.

  According to this, different identification codes are read from the wireless tags attached to the respective parts of the two-wheeled vehicle or the automobile, identification information based on the combination of the identification codes is generated, and the encrypted information is stored in the electronic key. Can be used for locking or unlocking.

  For example, the identification codes of wireless tags attached to the respective parts are generally different even in the same two-wheeled vehicle. In addition, since the component configuration is different between a two-wheeled vehicle and an automobile, the number of wireless tags attached to each component and the identification code are naturally different.

  According to the present invention, the identification information is generated by the combination of the identification codes of the wireless tags attached to the respective parts constituting one vehicle, so that it is inevitably possible to generate different identification information for each vehicle. Therefore, it is possible to lock or unlock a plurality of vehicles with one mobile phone terminal device.

  Further, in the mobile phone terminal device of the present invention, the identification information generated in this way is transmitted to the mobile phone terminal device by encrypting it using an encryption key uniquely determined, and thereby transmitting the encryption key. Even if the identification code of the wireless tag is read by another mobile phone terminal device that does not have the encryption key or has an encryption key different from the encryption key, the other mobile phone terminal device It is impossible to impersonate.

  In order to avoid theft, the encryption key can be updated periodically. However, this is conventionally handled by existing technology, and is directly related to the gist of the present invention. Since there is no relationship, explanation is omitted. The same applies to a decryption key to be described later. For example, the decryption key is updated together with the update of the encryption key.

  Another aspect of the present invention is an identification information storage means for receiving the encrypted information transmitted from the mobile phone terminal device of the present invention and storing the decrypted identification information, and storing the identification information in the identification information storage means. The electronic key device includes means for locking or unlocking when the encrypted information that matches the identification information that has been decrypted is received from the mobile phone terminal of the present invention. Needless to say, the decryption key possessed by the electronic key device corresponds to the encryption key possessed by the mobile phone terminal device.

  Convenience of electronically locking or unlocking a plurality of vehicles using a single mobile phone terminal device by combining the electronic key device of the present invention and the mobile phone terminal device of the present invention. Can be provided to the user.

  The mobile phone terminal device of the present invention further includes key information storage means for storing a plurality of pieces of identification information, and selects one of the plurality of pieces of identification information stored in the key information storage means according to an operation input. By providing the means for encrypting and transmitting, identification information corresponding to a plurality of vehicles can be held in one mobile phone terminal device. Accordingly, one mobile phone terminal device can be used as a key for a plurality of vehicles by a very simple switching operation.

  In addition, when updating one piece of identification information stored in the key information storage means, the new identification information is encrypted and transmitted together with the old identification, and the vehicle parts are replaced by means for transmitting an update request. It is possible to cope with the case where the vehicle is replaced or the vehicle itself is replaced.

  In the electronic key device of the present invention, the encrypted identification information that matches the identification information stored in the identification information storage means is received from the mobile phone terminal device of the present invention, and the encrypted new information is further received. When the update request is received together with the new identification information, it is stored by a malicious third party by providing means for updating the identification information already stored in the identification information storage means with the new identification information. It is possible to avoid rewriting the existing identification information.

  The mobile phone terminal device of the present invention does not include the key information storage means, and each time the identification code of the wireless tag is read and encrypted in the electronic key device near the vehicle to be locked or unlocked. May be transmitted. However, in this case, when a part of the part has already been stolen, it cannot be locked or unlocked. Therefore, it is useful to store the identification information generated at the stage where all the parts are ready. The key information storage means is also useful for using old identification information and new identification information when updating identification information already stored in the electronic key device. Further, when the wireless tag is also attached to a bicycle parking lot or a parking lot, and this wireless tag is also included in the monitoring target, the key information storage means is also used when locking or unlocking at a place other than the bicycle parking lot or the parking lot. Identification information including the identification code of the stored bicycle parking lot or the wireless tag attached to the parking lot is used.

  According to the present invention, it is possible to electronically lock or unlock a plurality of vehicles using one mobile phone terminal device, and the user does not need to carry keys corresponding to the plurality of vehicles. You can enjoy convenience.

  A cellular phone terminal device and an electronic key device according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram of the main part of a mobile phone terminal device of this embodiment, and only functional blocks related to the present invention are shown. Therefore, illustration of functional blocks for telephone communication that the mobile phone terminal device has conventionally has been omitted.

  As shown in FIG. 1, the mobile phone terminal device 7 of this embodiment includes a wireless tag information reading unit 2 that reads the identification codes of a plurality of wireless tags 1-1 to 1-n to which different identification codes are assigned. . The plurality of identification codes read by the wireless tag information reading unit 2 are combined into one piece of identification information by the identification information generation unit 3. This combination rule is, for example, that identification codes are arranged in ascending or descending order. For example, if the identification code of the wireless tag 1-1 is “0100”, the identification code of the wireless tag 1-2 is “0101”, the identification code of the wireless tag 1-3 is “0102” (hereinafter omitted), Are combined into “10100; 10101; 10102; (hereinafter omitted)”.

  The encryption unit 5 encrypts the identification information generated in this way by using an encryption key uniquely defined for the own mobile phone terminal device 7. The encrypted information encrypted by the encryption unit 5 is transmitted by the transmission unit 6. The identification information generated by the identification information generation unit 3 is stored in the key information storage unit 4 as key information.

  The operation of the transmission unit 6 will be described in more detail with reference to the flowchart of FIG. The transmission unit 6 monitors the user's operation input (S1). If the instruction is an update of the identification information (S2), the old identification information is read from the key information storage unit 4 (S3), and the new identification information is further updated. It is read from the key information storage unit 4 (S4), and the old and new identification information is encrypted by the encryption unit 5, and an update request is added and transmitted (S5). Further, the transmission unit 6 monitors the user's operation input (S1), and if the instruction is locked or unlocked (S2), the identification information selected by the user is read from the key information storage unit 4, and this identification information Is encrypted by the encryption unit 5 and transmitted (S6).

  The key information storage unit 4 can store identification information for each of a plurality of vehicles (two-wheelers or automobiles) owned by the user, and the user can identify any one of these identification information. Information can be selected by operation input, encrypted, and transmitted.

  FIG. 3 is a diagram showing a mounting state of the wireless tags 1-1 to 1-12 in the two-wheeled vehicle. The radio tag 1-1 is a transmission case, the radio tag 1-2 is a front fork, the radio tag 1-3 is an exhaust pipe, the radio tag 1-4 is a fuel tank, the radio tag 1-5 is a front wheel, a radio Tags 1-6 are rear wheels, wireless tags 1-7 are driver seats, wireless tags 1-8 and 1-9 are rearview mirrors, wireless tags 1-10 and 1-11 are handles, wireless tags 1- 12 are respectively attached to the headlamps.

  A conventional configuration and operation of the electronic key device 10 will be described with reference to FIGS. FIG. 4 is a diagram showing a conventional block configuration of the electronic key device 10. FIG. 5 is a flowchart showing an operation conventionally performed by the electronic key device 10. The electronic key device 10 reads the identification codes of the wireless tags 1-1 to 1-n by the wireless tag information reading unit 11 (S11), and confirms the read identification codes by the monitoring unit 12 (S12). The monitoring unit 12 stores the identification codes of the wireless tags 1-1 to 1-n in advance. The identification code read by the wireless tag information reading unit 11 is compared with the identification code stored in advance. If there is a detected identification code (S13), the alarm unit 13 issues an alarm (S14).

  Thereby, even when a part of the motorcycle is stolen rather than the whole motorcycle, this can be detected. Further, in the proposal of Patent Document 4, by further providing a vibration sensor, it is possible to prevent theft by detecting whether or not the two-wheeled vehicle is moved or parts are removed.

  Next, the configuration and operation of the electronic key device 10 characteristic of the present invention will be described with reference to FIGS. FIG. 6 is a diagram showing a characteristic block configuration of the electronic key device 10 according to the present invention. FIG. 7 is a flowchart showing the characteristic operation of the electronic key device 10 in the present invention.

  The control function (not shown) of the electronic key device 10 receives the encrypted information transmitted from the mobile phone terminal device 7 by the receiving unit 20 (S21). The decryption unit 21 has a decryption key corresponding to the encryption key of the encryption unit 5 of the mobile phone terminal device 7, and the decryption unit 21 decrypts and analyzes the received information content, When the old identification information, the new identification information, and the update request are included (broken line processing) (S22), the old identification information already stored in the identification information storage unit 24 is updated with the new identification information (S22). S23).

  Further, when the received information content is single identification information (solid line processing) (S22), the collation unit 22 collates whether or not it matches the identification information stored in the identification information storage unit 24. (S24). If the collation results match (S25), this is notified to the key control unit 23, and the key control unit 23 locks or unlocks (S26).

  Here, locking and unlocking are alternately performed for each flow, but locking or unlocking may be designated by a user operation input. Alternatively, when locking, it is locked manually without performing verification of identification information and other authentication procedures, and verification of identification information is performed only when unlocking, and authentication is performed by the key control unit 23. it can.

(Other examples)
In the above embodiment, an example of a two-wheeled vehicle has been described. However, the same can be said even if the two-wheeled vehicle is replaced with an automobile. In the case of a two-wheeled vehicle, the handle is locked by locking and the engine cannot be started. The unlocking unlocks the handle and allows the engine to be started. In the case of an automobile, the door is locked by locking and the engine cannot be started. At this time, the handle may be locked. The unlocking unlocks the door (or the handle) and allows the engine to start.

  In addition, by attaching a wireless tag to a bicycle parking lot or a parking lot and including the wireless tag as a monitoring target, an alarm can be issued when the motorcycle or the car is taken out of the bicycle parking lot or the parking lot.

  The present embodiment can be implemented as a program that, when installed in a general-purpose information processing apparatus, causes the information processing apparatus to realize a function corresponding to the above-described mobile phone terminal device or electronic key device. The program is recorded on a recording medium and installed in the information processing apparatus, or installed in the information processing apparatus via a communication line, so that the information processing apparatus corresponds to the above-described mobile phone terminal device or electronic key device. Function can be realized. The general-purpose information processing device is, for example, a microcomputer chip mounted on a mobile phone terminal device or an electronic key device.

  ADVANTAGE OF THE INVENTION According to this invention, the operator of a mobile telephone terminal device can further expand the added value of a mobile telephone terminal device, and can contribute to acquisition of the user of a mobile telephone terminal device. In addition, for the user of the mobile phone terminal device, the utilization range of the mobile phone terminal device can be further expanded, which can contribute to the improvement of user convenience.

The block block diagram of the mobile telephone terminal device of a present Example. The flowchart which shows operation | movement of the mobile telephone terminal device of a present Example. The figure which shows the condition of the wireless tag attached to the two-wheeled vehicle. The block diagram from the past of an electronic key apparatus. The flowchart which shows the operation | movement from the past of an electronic key apparatus. 1 is a block configuration diagram that characterizes the present invention of an electronic key device. FIG. The flowchart which shows the operation | movement which becomes the characteristic of this invention of an electronic key apparatus.

Explanation of symbols

1-1 to 1-n RFID tags 2 and 11 RFID tag information reading unit 3 Identification information generating unit 4 Key information storage unit 5 Encryption unit 6 Transmitting unit 7 Mobile phone terminal device 10 Electronic key device 12 Monitoring unit 13 Alarm unit 20 Reception unit 21 Decryption unit 22 Verification unit 23 Key control unit 24 Identification information storage unit

Claims (10)

RFID tag information reading means for reading the identification codes of a plurality of RFID tags each assigned a different identification code;
An encryption unit that encrypts one piece of identification information configured by combining a plurality of identification codes read by the wireless tag information reading unit;
A mobile phone terminal device comprising: encryption information transmitting means for transmitting encrypted information generated by the encryption means. Identification information storage means for receiving the encrypted information transmitted from the mobile phone terminal device according to claim 1 and storing the decrypted identification information;
An electronic key device comprising: means for locking or unlocking when receiving, from the mobile phone terminal device according to claim 1, encrypted information that matches the identification information stored in the identification information storage means after decryption. Key information storage means for storing a plurality of pieces of identification information;
The mobile phone terminal device according to claim 1, further comprising: means for selecting, encrypting and transmitting any of the plurality of identification information stored in the key information storage means according to an operation input.   4. The mobile phone according to claim 1, further comprising means for encrypting and transmitting the new identification information together with the old identification information, and further transmitting an update request when updating one identification information stored in the key information storage means. Telephone terminal device.   The encrypted identification information that matches the identification information stored in the identification information storage means is received from the mobile phone terminal device according to claim 1, and further, the update request is received together with the new encrypted identification information. 3. The electronic key device according to claim 2, further comprising means for updating the identification information already stored in the identification information storage means with the new identification information. The mobile phone terminal device reads the identification codes of a plurality of wireless tags to which different identification codes are assigned, encrypts one identification information configured by combining the read identification codes, and Send encrypted information,
The electronic key device receives the encrypted information transmitted from the mobile phone terminal device, stores the decrypted identification information, and stores the encrypted information that matches the stored identification information after the decryption. Electronic key operation method that locks or unlocks when received from a telephone terminal.   The operation of the electronic key according to claim 6, wherein the mobile phone terminal device stores a plurality of different generated identification information, selects one of the stored plurality of the identification information according to an operation input, and transmits the encrypted information. Method. When the mobile phone terminal device updates one stored identification information, the new identification information is encrypted and transmitted together with the old identification information, and further an update request is transmitted,
When the electronic key device receives encrypted identification information that matches the stored identification information from the mobile phone terminal device, and further receives an update request together with the new encrypted identification information, The electronic key operating method according to claim 6, wherein the stored identification information is updated with the new identification information.   A program that, when installed in a general-purpose information processing apparatus, causes the information processing apparatus to realize a function corresponding to the function of the mobile phone terminal apparatus according to any one of claims 1, 3, and 4.   A program that, when installed in a general-purpose information processing apparatus, causes the information processing apparatus to realize a function corresponding to the function of the electronic key device according to claim 2 or 5.

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