JPH1046885A - Electronic lock system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve security of an electronic lock system by performing locking and unlocking operation by a communication means between the electronic lock system and a portable terminal and performing locking and releasing by the operation result. SOLUTION: When the input part 16 of a PHS type portable terminal 1 is operated and an electronic lock locking and unlocking function is called out, it is made a child machine direct mode. When locking and releasing requests are transmitted through a transmitting and receiving device 14 and an antenna 15 and an electronic lock system 2 receives it, random numbers are generated to be transmitted to the PHS type portable terminal 1. The PHS type portable terminal 1 performs operation in respect to the transmitted random numbers such as a memory number stored in a memory 11, and an operation result is transmitted to the electronic lock system 2. The electronic lock system 2 performs operation in respect to the random numbers such as the memory code stored in a memory, the transmitted operation result is collated, and if it is matched therewith, locking and unlocking states of an electronic lock locking and unlocking device 25 are detected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an electronic lock system.

[0002]

2. Description of the Related Art An example of an electronic lock system is disclosed in Japanese Unexamined Patent Publication No.
As disclosed in Japanese Patent No. 55370, locking and unlocking of the electronic lock system is performed by previously storing a specific security code in the electronic lock system and inputting a specific security code from the keypad when locking or unlocking. I do. The entered security code is compared with the security code in the system, and if they match, locking or unlocking is performed. Further, as disclosed in JP-A-3-33381, locking and unlocking are performed by data transmission between a wireless key and an electronic lock system.

[0003]

As described above, the input operation of the password must be performed from the keypad.
Further, the personal identification code can be displayed by a memory display function or the like, and the personal identification code may be known to a third party. In addition, when the user is concerned about the locked or unlocked state of the electronic lock system from a distance, it is difficult to confirm the state.

An object of the present invention is to improve security when unlocking an electronic lock system.

[0005]

In order to achieve the above object, the present invention provides an electronic lock system and communication means for a portable terminal, performs a lock release operation, and determines whether or not the calculation results match. If they match, locking or unlocking can be performed, and the locking or unlocking state can be confirmed from a distance. When displaying the personal identification code, a personal identification code display mode is provided for maintenance so that the operation is not easily performed by the user.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing an embodiment of the present invention. 1 is a PHS type portable terminal, 11 is a rewritable non-volatile memory, 12 is a calculator, 13 is a display for displaying numbers and the like when a key is pressed, 14 is a transceiver, 15 is an antenna, and 16 is an input unit. Reference numeral 2 denotes an electronic lock system provided with a direct call function between PHS slave units, 21 denotes a rewritable nonvolatile memory, 22 denotes a calculator, 23 denotes a comparator for comparing calculation results, 24 denotes a random number generator, and 25 denotes a random number generator. Is an electronic lock locking / unlocking device for performing actual locking and unlocking, 26
Denotes a transceiver, 27 denotes an antenna, and 28 denotes a keypad.

FIG. 2 shows a locking / unlocking sequence between the PHS portable terminal and the electronic lock system as one embodiment of the present invention. When the input section 16 is operated and the electronic lock locking / unlocking function is called, the direct communication mode between the slave units is set, and the PH
The locking / unlocking request s1 is transmitted from the S-type portable terminal 1 via the transceiver 14 and the antenna 15, and when the electronic lock system 2 receives this, a random number is generated, and the random number is transmitted to the PHS-type portable terminal 1. It is sent (s2). The PHS mobile terminal 1 performs an operation relating to the personal identification code, the serial number and the transmitted random number s2 stored in the memory 11, and transmits the operation result s3 to the electronic lock system. The electronic lock system 2 performs an operation related to the personal identification code, the serial number, and the generated random number stored in the memory 21 to generate an operation result. The operation result sent is compared with the operation result generated, and if they match, the electronic lock locking / unlocking device 2
5 is detected, the state is changed to a state different from the current state, and the changed state is notified (s6). The PHS mobile terminal 1 receives the notification s6, displays the locked or unlocked state after the change on the display 13, and ends the process. If the calculation results do not match, the electronic lock system 2
Sends a calculation error notification s4, and the PHS mobile terminal 1 receives the notification s4 and displays the failure on the display 13 to notify the user.

When a security code is directly input from the keypad 28 of the electronic lock system, the entered security code is compared with the security code in the memory of the electronic lock system. Perform cancellation.

FIG. 3 shows a lock / release state notification sequence between the PHS system portable terminal and the electronic lock system as one embodiment of the present invention. When checking the locked / unlocked state, when the input unit 16 is operated to call the electronic lock locked / unlocked state checking function, a direct communication mode is set between the slave units, and the transceiver 14 and the antenna 16 are transmitted from the PHS type portable terminal 1 to the handset. Via the antenna 27 and the transmitter / receiver 26, and when the electronic lock system 2 receives the lock / release display request (s5), a random number is generated and the random number is transmitted to the PHS system portable terminal 1. It is sent (s2). The PHS mobile terminal 1 performs an operation on the personal identification code stored in the memory 11, the serial number, and the received random number s2, sends out the operation result s3 to the electronic lock system, and issues a timer t1. The electronic lock system 2 performs an operation related to the personal identification code, the serial number, and the random number held in the memory 21 and generates an operation result. The transmitted operation result is compared with the generated operation result, and when they match, the locking or unlocking state of the electronic lock locking / unlocking device 25 is detected, and the locking / unlocking state notification (s6) is sent to the PHS type portable terminal 1. Send out. The PHS mobile terminal 1 receives the notification s6, stops the timer t1,
The sent lock or unlocked state is displayed on the display 13 to notify the user, and the process is terminated. Further, the transmitted operation result is compared with the generated operation result, and when they do not match, the electronic lock system 2 ends the processing as it is.
When transmitting the operation result s3, the PHS mobile terminal 1 waits for reception of the lock / release state notification s6 until the issued timer t1 times out. When the timer t1 times out, the calculation result is regarded as mismatch,
The process ends.

Next, a description will be given of an embodiment of the display restriction of the personal identification code. If the personal identification code is easily known by the operation of the user, the electronic lock may be released. Therefore, a password reading mode is provided for maintenance. “F”,
Only when predetermined keys such as "#", "1", and "2" are depressed in order, the security code reading mode is entered and the security code can be displayed. The security code is read out only when a special mode which cannot be entered normally is entered.

Next, a procedure for writing a personal identification code in the portable terminal will be described. “F”,
Only when predetermined keys such as "#", "4", "2", and "8" are depressed in order, the security code writing mode is set and the security code can be rewritten. Only when a special mode which cannot be entered in this way is entered, the personal identification code is written.

[0013]

According to the present invention, when locking and unlocking the electronic lock system, the security code can be improved without the secret code being known to a third party. In addition, it is possible to check the locked or unlocked state via a communication sequence by setting a distance between the portable terminal and the electronic lock system.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment.

FIG. 2 is a flowchart showing an operation of locking or unlocking between the PHS type portable terminal and the electronic lock system.

FIG. 3 is a flowchart showing an operation for displaying a locked or unlocked state between the PHS type portable terminal and the electronic lock system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... PHS type portable terminal, 2 ... Electronic lock system, 11 ... Non-volatile memory, 12 ... Calculator, 13 ... Display, 14,26 ... Transceiver, 15,27 ... Antenna, 16 ... Input part, 21 ... Non-volatile Memory: 22: arithmetic unit, 23: comparator, 24: random number generator, 25: electronic lock locking / unlocking device, 28: keypad.

Claims (3)

[Claims] A communication unit for communicating with a portable terminal, a computing unit for performing an operation for determining whether or not the portable terminal is permitted to be locked or unlocked based on a password stored in a memory; A locking / unlocking device for locking or unlocking according to whether or not the calculation result matches the data sent from the mobile terminal; furthermore, an input means for directly inputting a security code; An electronic lock system comprising a memory that is held, and locks or unlocks when the inputted security code matches the security code stored in the memory. 2. A communication unit for communicating with a portable terminal, a computing unit for performing an operation for determining whether or not the portable terminal can be locked or unlocked based on a password stored in a memory; A memory for notifying the mobile terminal of a locked or unlocked state based on whether or not the calculation result matches data transmitted from the mobile terminal, the memory holding the password is a normal memory. An electronic lock system in which reading is restricted in operation, and the restriction can be released by pressing a key four times or more in a predetermined order, and the password can be referred to. 3. A means for communicating with the electronic lock system according to claim 1 or 2, a means for inputting a security code certifying that the mobile terminal is permitted to be locked or unlocked, and said security code. And a means for sending the data to the electronic lock system. In the memory, the reading is restricted in a normal operation, and the restriction is performed by pressing a key four or more times in a predetermined order consecutively. A mobile terminal used in an electronic lock system that can unlock and refer to a security code.