JP3398374B1 - Electronic locking and unlocking device - Google Patents

Abstract

An electronic locking / unlocking device capable of locking and unlocking a door more effectively is provided. A communication unit connected to a telephone line, receiving an electric signal transmitted from a communication terminal via the telephone line, and extracting a code included in the electric signal, and a locking / unlocking unit for locking / unlocking a door. A control unit that controls the locking / unlocking operation of the locking / unlocking unit, a storage unit that stores an authentication code, a locking operation set time and an unlocking operation set time, and an opening detection unit that detects opening of the door. Electronic locking and unlocking device, wherein the control unit, the code extracted by the communication unit,
Determining whether or not the authentication code matches, and if determining that the code matches, unlock output means for outputting an unlock operation signal to the locking and unlocking unit; Lock output means for outputting a locking operation signal to the locking / unlocking unit after a lapse of the locking operation set time from the output of the locking operation signal, wherein the unlocking output means outputs the unlocking operation signal from the output of the unlocking operation signal. Until the output of the locking operation signal, if the opening of the door is not detected by the opening detection unit,
After the unlocking operation set time has elapsed from the output of the locking operation signal, an unlocking operation signal is output to the locking and unlocking unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of a door locking / unlocking system using a telephone line.

[0002]

[Prior art]

[Patent Document 1] Japanese Patent Laid-Open No. 10-292688

[Patent Document 2] Japanese Patent Laid-Open No. 2002-106222 Various types of door locking / unlocking systems using telephone lines have been proposed. For example, in Patent Document 1, a mobile phone in a call state with a main telephone via a telephone line transmits a locking / unlocking signal via a telephone line to a lock device attached to a door based on an operation by a user. There is disclosed a locking / unlocking system that locks or unlocks the door. In this locking / unlocking system, a personal identification number which is a key for locking or unlocking is input from a mobile phone, and the door is locked or unlocked by collating the personal identification number.

On the other hand, in Patent Document 2, in consideration of the case where the user has forgotten such a personal identification number, the lock device attached to the door should be issued when a mobile phone placed near it is called. An unlocking system is disclosed that unlocks the door when it detects an electromagnetic wave generated.

[0004]

By the way, in such a conventional system, as a matter of course, it is assumed that the user returns home and locks and unlocks the door by using the mobile phone in front of the door at the entrance of the home. There is.

However, for example, when the power supply of the mobile phone is turned off or the user forgets the mobile phone at the office, the user cannot unlock the door. However, if the user calls from the office phone and unlocks the door,
Since the user is not in front of the door, the meaning of the system is lost.

Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide an electronic locking / unlocking device capable of locking / unlocking a door more effectively.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 is connected to a telephone line and receives an electric signal transmitted from a communication terminal via the telephone line to obtain the electric signal. A communication unit that extracts the included code,
A locking / unlocking unit for locking / unlocking the door, a control unit for controlling the locking / unlocking operation of the locking / unlocking unit, a storage unit for storing an authentication code, a locking / locking operation setting time and an unlocking / operation setting time, and opening of the door. In the electronic locking and unlocking device, the control unit determines whether or not the code extracted by the communication unit and the authentication code match, When it is determined that the codes match, unlocking output means for outputting an unlocking operation signal to the locking / unlocking unit, and after the locking operation set time has elapsed from the output of the unlocking operation signal, the And a locking output unit that outputs a locking operation signal to the locking and unlocking unit, wherein the unlocking output unit is
During the period from the output of the unlocking operation signal to the output of the locking operation signal, when the opening of the door is not sensed by the opening sensing unit, after the unlocking operation set time has elapsed from the output of the locking operation signal, An unlocking operation signal is output to the locking / unlocking unit.

According to the first aspect of the present invention, when the opening of the door is not detected by the opening detection unit between the output of the unlocking operation signal (automatic unlocking) and the output of the locking operation signal (automatic locking). That is, instead of the user operating a communication terminal such as a mobile phone in front of the door to input an authentication code such as a personal identification number, for example, a user operates a communication terminal such as a public telephone separated from home. When an authentication code such as a personal identification number is input, the unlocking operation signal is output to the locking / unlocking unit after the unlocking operation setting time (for example, several minutes) has elapsed from the output of the locking operation signal, and the door is unlocked. Is done.

Therefore, even when the power supply of the mobile phone is turned off or the user forgets the mobile phone at the office, the user calls the electronic locking / unlocking device from the public telephone or the like and outputs the authentication code. If input, the door can be unlocked just when the user returns home. Also, when the user operates the mobile phone in front of the door and inputs the authentication code, the door is unlocked immediately.
In other words, the electronic locking / unlocking device is in two situations, one is when the user inputs the authentication code from the mobile phone in front of the door and the other is when the user inputs the authentication code from a public telephone or the like, which is separated from home. In addition, the door can be locked and unlocked more effectively.

According to a second aspect of the present invention, in the electronic locking / unlocking device according to the first aspect, the electronic device further comprises an abnormality sensing unit for sensing an abnormality in the locking operation of the locking / unlocking unit, and the locking output means has the abnormality. When an abnormality in the locking operation is detected by the sensing unit, the locking operation signal is output a predetermined number of times to retry.

According to the second aspect of the present invention, even if there is a temporary abnormality in the door locking operation, the door can be reliably locked (automatic locking), so reliability is improved. Can be made.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the electronic locking / unlocking device according to the item (1), the communication unit, the locking / unlocking unit, the control unit, the storage unit, and the opening detection unit are supplied with power from an external AC power source and supplied from the external AC power source. A charger for charging electricity is further provided, and the charger includes the communication unit, the locking / unlocking unit, the control unit, the storage unit, and the opening when the power supply from the external AC power supply is disabled. A feature is that power is supplied to the detection unit.

According to the third aspect of the present invention, even if the power supply from the external AC power supply is disabled due to a power failure or the like, the charger can supply power to each component, so that a power failure or the like occurs. In this case, it is possible to prevent the door from being locked and unlocked.

The invention according to claim 4 is the electronic locking / unlocking device according to any one of claims 1 to 3, wherein the door is provided at an entrance of a building or a room, and the electronic locking / unlocking device includes: It is characterized in that it is installed inside the entrance of the building or room.

According to the fourth aspect of the invention, it is possible to prevent others from touching the electronic locking / unlocking device from outside the building or room.

[0016]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In addition, the following explanation
1 is an embodiment in which an electronic locking / unlocking device of the present invention is applied to a locking / unlocking system.

First, the configuration of the locking / unlocking system S according to this embodiment will be described.

FIG. 1 is a diagram showing a schematic configuration example of the locking / unlocking system S. As shown in FIG. 1, the locking / unlocking system S
Is a public telephone 1 fixedly installed, a mobile phone 2 carried by a user of the system S, a building such as the user's home or office, and the inside of the entrance (entrance) of each room (including an apartment) in the building. The electronic locking / unlocking device 3 attached to the opening portion (door side or building side) of the above). Public telephone 1 and electronic locking / unlocking device 3
Is connected to the telephone line 4, and the public telephone 1 can communicate with the electronic locking / unlocking device 3. Further, the mobile phone 2 is connected to a telephone line 4 via a radio base station, a switching center, etc., which are not shown, and can communicate with the electronic locking / unlocking device 3. The telephone line 4 has a broad meaning including an analog line, a digital line (ISDN, etc.), a mobile communication line, and the like.

The public telephone 1 and the mobile telephone 2 are
It is an example of the communication terminal of the present application, and is not limited to this. For example, a telephone fixedly installed in a home, a personal computer, or a PHS (Personal Hand)
y phone System), PDA (Personal Digital Assistant)
A mobile communication terminal such as t) may be applied as the communication terminal.

Next, the structure and function of the electronic locking / unlocking device 3 will be described.

FIG. 2 is a diagram showing an example of functional blocks of the electronic locking / unlocking device 3. In FIG. 3, the electronic locking / unlocking device 3 has a door 10
It is a figure which shows the state when it is attached to the opening part of this (in this embodiment, it is attached to the building side), and FIG. 3 (A) shows the state when the door 10 is locked. 3 (B) shows the state when the door 10 is unlocked. The dimensions of the electronic locking / unlocking device 3 shown in FIG. 3 are, for example, vertical: 22 to 23c.
m, width: 4 to 5 cm, height: 2 to 3 cm.

As shown in FIG. 2, the electronic locking / unlocking device 3 is
A communication unit 31 that receives an electric signal transmitted from the public telephone 1 and the mobile telephone 2 via the telephone line 4 and extracts a code included in the electric signal, a locking / unlocking unit 32 that locks / unlocks the door, and a locking / unlocking operation. A control unit 33 that controls the locking / unlocking operation of the lock unit 32, and a non-volatile memory that stores various types of information including a personal identification number (for example, a four-digit number) as an authentication code, a locking operation setting time and an unlocking operation setting time. Memory (eg EEP
ROM (Electrically Erasable ProgrammableRead Onl
memory unit 34 such as y Memory), an opening detection unit 35 that detects the opening of the door, an abnormality detection unit 36 that detects an abnormality in the locking operation of the locking / unlocking unit 32, a personal identification number, a locking operation setting time, and unlocking. And a setting unit 37 for setting the operation set time. The electronic locking / unlocking device 3 is additionally provided with a light emitting diode controlled by the control unit 33, a buzzer, and the like.

Further, an external AC is provided in each of these components.
Power is supplied from a power supply 39, for example, an AC power supply supplied to a building, through an outlet and an AC adapter.

The electronic locking / unlocking device 3 is also provided with a charger 38 for charging electricity from an external AC power source 39. The charger 38 is connected to the external AC power source due to, for example, a power failure or disconnection of electric wiring. When the power supply from 39 becomes impossible, the power is supplied to these components.

A unique telephone number is assigned to the electronic locking / unlocking device 3, and the user can call the electronic locking / unlocking device 3 from the public telephone 1 and the mobile telephone 2.

The communication section 31 is mainly composed of, for example, an IC, and its input terminal is connected to the telephone line 4. After the user calls from the public telephone 1 or the mobile telephone 2 to the electronic locking / unlocking device 3 to establish communication, the personal identification number as a code input by the user in the public telephone 1 or the mobile telephone 2 is an electric signal, for example, , DTMF (Dual Tone Multi Frequency) signal is included in the signal and transmitted to the electronic locking / unlocking device 3.
Is configured to extract the personal identification number contained in the DTMF signal and output it to the control unit 33.

The locking / unlocking unit 32 uses a rotary motor (not shown) whose rotational shaft is driven to rotate (forward or reverse) under the control of the control unit 33, and a rotary driving force of the rotary motor to an operating lever. A gear (not shown) for transmission and an operating lever (not shown) that is rotated by the rotation driving force.
And the cylinder 3 that slides in accordance with the rotation of the operating lever.
21 is included. In the state where the door 10 is locked, as shown in FIG.
The cylinder 321 is projected from the electronic locking / unlocking device 3, and the door 1
It is fitted to a cylinder tray 101 fixedly installed at 0. As a result, the opening of the door 10 is blocked. On the other hand, when the door 10 is unlocked, the cylinder 321 is housed in the electronic locking / unlocking device 3 as shown in FIG. In the present embodiment, as shown in the figure, the cylinder 321 is made of two columnar metal.

As described above, the cylinder 321 is adapted to slide in the directions of arrows A and B in the drawing by the rotational drive of the rotary motor. For example, when the rotary motor is driven forward, the cylinder 321 is rotated. Is slid in the direction in which it is projected from the electronic locking / unlocking device 3 (direction A in the figure), and the cylinder 321 is housed in the electronic locking / unlocking device 3 when the rotary motor is driven in reverse. It is adapted to slide in the direction (B direction). Also in this case,
The rotary motor is driven to rotate normally according to the locking operation signal from the control unit 33, and is driven to rotate reversely according to the unlocking operation signal from the control unit 33.

The control unit 33 is composed of, for example, a logic circuit, a comparison circuit, a timer, etc., functions as the unlocking output means of the present invention, and stores the secret code extracted by the communication unit 31 and the storage unit 34. It is determined whether or not the stored personal identification number matches, and when it is determined that the personal identification number matches, an unlocking operation signal is output to the locking / unlocking unit 32. .

Further, the control unit 33 functions as the lock output unit of the present invention, and after the lock operation setting time (for example, 10 seconds) by the timer operation elapses from the output of the unlock operation signal, the control unit 33 causes the lock / unlock unit 32 to operate. On the other hand, a locking operation signal is output.

Further, during the period from the output of the unlocking operation signal to the output of the locking operation signal (about 10 seconds from the unlocking of the door 10 to the locking), the opening sensor 35 does not detect the opening of the door 10. In this case, the control unit 33 outputs the unlocking operation signal to the locking / unlocking unit 32 after the unlocking operation setting time (for example, 15 minutes) by the timer operation has elapsed from the output of the locking operation signal. . On the other hand, the open sensor 35
When the opening of the door 10 is sensed by, the timer operation is canceled and the unlocking operation signal is not output after the unlocking operation set time has elapsed.

The control unit 33 may be configured to include a RAM, a ROM, etc., mainly of the CPU, and the CPU may be configured to perform the above functions by executing a program stored in the ROM. .

Further, the abnormality sensing unit 36 allows the locking / unlocking unit 3 to operate.
When an abnormality in the locking operation of No. 2 is detected, the control unit 33
Shows the lock operation signal at a predetermined interval (for example, every 2 seconds)
The retry is performed by outputting a predetermined number of times (for example, three times).

When the user opens the door 10 when the door 10 is unlocked,
The open sensor 35 senses it and outputs a signal to the controller 33. For example, the open sensor 35
Is equipped with a magnetic sensor and has a cylinder tray 1
01 is equipped with a magnet, and the magnetic sensor is set to detect the magnetism of the magnet when the door 10 is closed, so that the magnetic sensor cannot detect the magnetism of the magnet when the door 10 is opened. Configure to set to. When the magnetic sensor cannot detect the magnetism of the magnet, the opening detection unit 35 is configured to output a signal indicating the detection of the opening of the door 10 to the control unit 33 (the signal is output when it is detected). Good).

When the cylinder 321 is not properly fitted to the cylinder tray 101 (for example, the position of the door 10 is displaced due to the weight of the door 10), dust is trapped in the lower portion of the door 10 or the hinge portion. When the door 10 is not completely closed due to being pinched, an abnormality in the locking operation of the locking / unlocking unit 32 is detected and output to the control unit 33. For example, the abnormality sensing unit 36 may be the cylinder 321.
Is fitted into the cylinder tray 101 (see FIG. 3).
(A)) Mechanical switch and cylinder 3
21 is stored in the electronic locking / unlocking device 3 (see FIG. 3).
(B)) is configured to include a mechanical switch that operates and a logic circuit that receives an operation signal from the mechanical switch, and when both mechanical switches do not operate for a predetermined time (for example, 2 seconds), It is detected as an abnormality and output to the control unit 33.

The setting section 37 sets a setting switch for selecting any one of the setting elements of the above-mentioned personal identification number, locking operation setting time and unlocking operation setting time, and a personal identification number, locking operation setting time and unlocking operation setting time. A setting button and a counter to be set are included, and the password, the locking operation setting time, and the unlocking operation setting time can be set.

For example, in the case of the unlocking operation setting time, the user selects the setting element of the unlocking operation setting time with the setting switch. Then, when the user presses the setting button, the setting counter counts the pressing, and the unlocking operation set time corresponding to the counted number is stored in the storage unit 34. For example, 5 minutes for 1 count, 10 minutes for 2 counts, 15 minutes for 3 counts, 20 minutes for 4 counts, 5 counts ...

Also in the case of the lock operation setting time, the user selects the setting element of the lock operation setting time with the setting switch,
When the setting button is pressed, the locking operation set time corresponding to the count number is stored in the storage unit 34. For example,
10 seconds for 1 count, 15 seconds for 2 counts, 3
In the case of counting, it is stored as 20 seconds, in the case of 4 counts is 25 seconds, in the case of 5 counts ...

Here, the settable time interval is 5
Although it is set to be every minute, it can be set shorter or longer.

In the case of the personal identification number, the user, after selecting the personal identification number setting element with the setting switch, calls the electronic locking / unlocking device 3 from the mobile telephone 2 or the like and operates the operation button of the mobile telephone 2. By doing so, the user inputs the personal identification number that the user wants to set. The entered PIN is
It is sent to the electronic locking / unlocking device 3 via the telephone line 4. Then, the sent personal identification number is stored in the storage unit 34 by the setting unit 37.
Will be stored in.

Next, an embodiment of the operation of the locking / unlocking system S will be described with the electronic locking / unlocking device 3 as the main component. FIG. 4 is a flowchart showing the flow of processing of the control unit 33 of the electronic locking / unlocking device 3.

In the following embodiments, the electronic locking / unlocking device 3 serves as a second key that assists the lock (which is inserted and locked by the key) installed on the door of the user's home. It shall be attached to the opening part of. The electronic locking / unlocking device 3 and the lock are independent.

Further, it is assumed that the secret code number, locking operation setting time and unlocking operation setting time have already been set by the setting unit 37.

(First Embodiment) In the first embodiment, the portable telephone 2
Will be described and the door 10 will be unlocked.

First, the user who returns home unlocks the lock of the door 10 with the key as in the conventional case. When the user makes a call from his / her mobile phone 2 based on the telephone number of the electronic locking / unlocking device 3, communication between the mobile phone 2 and the electronic locking / unlocking device 3 is established. In addition, from the mobile phone 2 to the electronic locking / unlocking device 3
After making a phone call, the lock of the door 10 may be unlocked with a key as is conventional.

Next, when the user operates the operation button of the cellular phone 2 in front of the door 10 and inputs the personal identification number, the personal identification number is included in the electric signal, for example, the DTMF signal, and the electric line 4 is connected. It is transmitted to the electronic locking / unlocking device 3 via.
The communication unit 31 of the electronic locking / unlocking device 3 uses the transmitted DTMF.
The signal is received, the personal identification number is extracted and output to the control unit 33.

Next, the control unit 33 of the electronic locking / unlocking device 3
As shown in FIG. 4, it is determined whether or not the personal identification number extracted by the communication unit 31 and the personal identification number stored in the storage unit 34 match (step S1). If it is determined that the personal identification numbers do not match, the door 10 is not unlocked. In this case, the user may be allowed to re-enter the personal identification number from the mobile phone 2.

On the other hand, when it is determined that the personal identification numbers match (step S1: Y), the control section 33 outputs an unlocking operation signal to the locking / unlocking section 32 (step S).
2). As a result, in the locking / unlocking unit 32, the rotary motor is rotationally driven as described above, and as shown in FIG. 3 (B), the cylinder 321 is housed in the electronic locking / unlocking device 3 (direction B). By sliding, the door 10 is unlocked. In this way, the user can open the door 10 and enter.

In addition, the storage unit 3 outputs the unlocking operation signal.
The lock operation setting time (for example, 10 seconds) stored in 4 is set in the timer, and the timer operation is performed.

Next, the control unit 33 determines whether or not a signal indicating the detection of the opening of the door 10 is input from the opening detection unit 35 until the locking operation set time elapses (step S4). ), If the signal is input (step S4: Y), the timer operation of the unlocking operation setting time is set to be canceled (step S5). That is, as described above, when the user opens the unlocked door 10, the timer operation for the unlocking operation setting time is canceled.

In this way, when the locking operation set time has elapsed (step S3: Y), the control section 33 outputs a locking operation signal to the locking / unlocking section 32 (step S6).
As a result, in the locking / unlocking unit 32, the rotation motor is rotationally driven as described above, and the cylinder 321 is projected from the electronic locking / unlocking device 3 as shown in FIG. 3A (direction A in the drawing). The door 10 is locked (automatically locked) by being slid on.

Next, the control unit 33 determines whether or not the timer operation for the unlocking operation set time has been canceled (step S7). When the timer operation for the unlocking operation setting time is canceled, that is, when the cancellation for the timer operation for the unlocking operation setting time is set in step S6, the control unit 33 ends the process. A case where the timer operation of the unlocking operation set time is not canceled will be described in the second embodiment.

(Second Embodiment) In the second embodiment, the public telephone 1
Will be described and the door 10 will be unlocked. Here, it is assumed that the mobile phone 2 cannot be used because the power of the mobile phone 2 is cut off or the user forgets the mobile phone 2 to the office.

First, the user walks from home, for example, 1
When a call is made from the public telephone 1 installed at a location of 5 minutes based on the telephone number of the electronic locking / unlocking device 3, the public telephone 1
Communication with the electronic locking / unlocking device 3 is established.

Next, when the user operates the operation button of the public telephone 1 and inputs the personal identification number, the personal identification number is
An electric line 4 included in an electric signal, for example, a DTMF signal
Is transmitted to the electronic locking / unlocking device 3 via. Then, the user leaves the public telephone 1 and heads home.

When the communication section 31 of the electronic locking / unlocking device 3 receives the transmitted DTMF signal, extracts the personal identification number and outputs it to the control section 33, as shown in FIG. The unit 33 determines whether or not the personal identification number extracted by the communication unit 31 and the personal identification number stored in the storage unit 34 match (step S1), and when the personal identification number matches. (Step S1: Y), the locking / unlocking unit 3
An unlocking operation signal is output to 2 (step S2). As a result, like the first embodiment, the door 10 is unlocked.

Further, the storage unit 3 is provided by outputting the unlocking operation signal.
The lock operation setting time (for example, 10 seconds) stored in 4 is set in the timer, and the timer operation is performed.

Next, as in the first embodiment, the control unit 33 waits until the locking operation set time elapses, and then the opening detection unit 35.
Then, it is determined whether or not there is an input of a signal indicating the detection of the opening of the door 10 (step S4). In the case of the second embodiment, since the user is on his way to his home at this time, the door 10 is not opened, and thus the timer operation of the unlocking operation set time is not released.

Thus, like the first embodiment, when the locking operation set time has elapsed (step S3: Y), the control unit 33 outputs a locking operation signal to the locking / unlocking unit 32 (step S6). As a result, as in the first embodiment, the door 1
A lock of 0 (automatic lock) will be performed.

Next, the control unit 33 determines whether or not the timer operation for the unlocking operation set time has been canceled (step S7). When the timer operation for the unlocking operation setting time is not released, the unlocking operation setting time (for example, 15 minutes) stored in the storage unit 34 is set in the timer by the output of the locking operation signal, and the timer operation is performed. .

Next, when the unlocking operation set time has elapsed (step S8: Y), the control unit 33 causes the locking / unlocking unit 32 to operate.
An unlocking operation signal is output to (step S9). As a result, the door 10 is unlocked. And
Just at this time, the user will be going home and the user will
Simply unlocking the lock of the door 10 with a key will enter the inside.

Further, the lock operation setting time stored in the storage unit 34 by the output of the unlock operation signal (for example, 10
Second) is set in the timer again, and the timer operation is performed. Thus, when the locking operation set time has elapsed (step S10: Y), the control unit 33 causes the locking / unlocking unit 32 to operate.
A locking operation signal is output to (step S11). As a result, the door 10 is locked (automatically locked).

As described above, according to the above-described embodiment, when the user operates the mobile phone 2 in front of the door 10 and inputs the personal identification number, the door 10 is unlocked immediately and the mobile phone is carried. If the user turns off the power of the telephone 2 or the user forgets the mobile telephone 2 at the office, the user can call the electronic locking / unlocking device 3 from the public telephone 1 and input the personal identification number. The door 10 can be unlocked exactly when the user returns home.

Therefore, there are situations where the user inputs the personal identification number from the portable telephone 2 in front of the door 10 and when the user inputs the personal identification number from the public telephone 1 separated from the home. The door 10 can be locked and unlocked more effectively.

In step S6 or step S9 of FIG. 4, when the abnormality detecting section 36 detects an abnormality in the locking operation of the locking / unlocking section 32, the control section 33
Retry is performed by outputting the locking operation signal a predetermined number of times (for example, 3 times) at a predetermined interval (for example, every 2 seconds). Accordingly, even if there is a temporary abnormality in the locking operation of the door 10, the door 10 can be reliably locked (automatically locked), so that reliability can be improved.

In the above embodiment, the unlocking operation set time is set by the setting button or the like in the setting section 37 provided in the electronic locking / unlocking device 3. However, for example, from the public telephone 1 the time is set. May be input and set. For example, when the power of the mobile phone 2 is turned off, or when the user forgets the mobile phone 2 to the office, the time taken from one public phone 1 to home is calculated, and the public phone 1 is used as an electronic device. By calling the locking / unlocking device 3 and setting the unlocking operation setting time, the convenience of the electronic locking / unlocking device 3 can be further improved.

[0067]

As described above, according to the present invention,
If the power of the mobile phone is cut off or the user forgets the mobile phone at the office, the user can call the electronic locking / unlocking device from a public telephone etc. and enter the authentication code. The door can be unlocked when the user returns home.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration example of a locking / unlocking system S.

FIG. 2 is a diagram showing an example of functional blocks of an electronic locking / unlocking device 3.

FIG. 3 is a diagram showing a state in which the electronic locking / unlocking device 3 is attached to an opening portion of a door 10.

FIG. 4 is a flowchart showing a processing flow of a control unit 33 of the electronic locking / unlocking device 3.

[Explanation of symbols]

1 public telephone 2 mobile phones 3 Electronic locking / unlocking device 4 telephone lines 31 Communications Department 32 Locking and unlocking section 33 Control unit 34 Storage 35 Open sensor 36 Abnormality detector 37 Setting section 38 charger 39 External AC power supply S lock / unlock system

Continuation of front page (56) References JP-A-62-196076 (JP, A) JP-A-2000-62572 (JP, A) JP-A-2002-194937 (JP, A) JP-A-8-100567 (JP, A) ) Actual Kaihei 3-61747 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05B 49/00-49/04 E05B 43/00

Claims (4)

(57) [Claims] 1. A communication unit which is connected to a telephone line and receives an electric signal transmitted from a communication terminal via the telephone line and extracts a code included in the electric signal; and a locking and unlocking unit for locking and unlocking a door. A control unit that controls the locking / unlocking operation of the locking / unlocking unit, a storage unit that stores an authentication code, a locking operation setting time and an unlocking operation setting time, and an opening detection unit that detects opening of the door. In the electronic locking / unlocking device provided, the control unit determines whether or not the code extracted by the communication unit and the authentication code match, and determines that the code matches. In that case, unlocking output means for outputting an unlocking operation signal to the locking / unlocking unit, and after the locking operation setting time has elapsed from the output of the unlocking operation signal, a locking operation signal is sent to the locking / unlocking unit. A lock output means for outputting, The unlocking output means outputs the unlocking operation signal and outputs the unlocking operation signal when the opening of the door is not sensed by the opening sensor between the output of the unlocking operation signal and the output of the locking operation signal. An electronic locking / unlocking device, which outputs an unlocking operation signal to the locking / unlocking unit after a lock operation setting time has elapsed. 2. The electronic locking / unlocking device according to claim 1, further comprising an abnormality sensing unit that senses an abnormality in the locking operation of the locking / unlocking unit, wherein the locking output means uses the abnormality sensing unit to perform the locking operation. If an abnormality is detected, the electronic locking / unlocking device is retried by outputting the locking operation signal a predetermined number of times. 3. The electronic locking / unlocking device according to claim 1, wherein power is supplied to the communication unit, the locking / unlocking unit, the control unit, the storage unit, and the opening detection unit from an external AC power source. In addition, the battery charger further comprises a charger for charging electricity from the external AC power supply, the charger having the communication unit, the locking / unlocking unit, when the power supply from the external AC power supply is disabled. An electronic locking / unlocking device, which supplies power to the control unit, the storage unit, and the opening detection unit. 4. The door is provided at an entrance of a building or a room, and the electronic locking / unlocking device is installed inside an entrance of the building. Electronic locking / unlocking device described.