JPS60208575A - Electric lock apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Technical Field> The present invention provides an electric lock device that is unlocked by inputting a password using a keyboard switch or the like, and when the password is changed, the lock is locked for a predetermined period of time. relates to an electric lock device that can be unlocked even by inputting a personal identification number that has not yet been changed.

<Prior art> An electric lock that is unlocked by an electric signal is provided on the entrance door of a house or office, etc., and a password is entered from an operation switch such as a keyboard switch located outside the entrance. Electric locking devices with an unlocking method are well known, but in conventional electric locking devices of this type, once the PIN number is changed in the control unit, the electric lock is unlocked unless the changed PIN number is entered. I couldn't do anything. If someone who is at home somehow changes their PIN and then goes to bed or goes out, other people who are out will have no way of knowing that the PIN has been changed and will be able to use the old PIN. Input from operation switches such as keyboard switches. However, the PIN number has already been changed and this person cannot unlock the electric lock. Furthermore, if a different password is entered from the operation switch section, in an electric lock device that detects the number of incorrect operations and issues an alarm, the alarm device will sound and the user may be treated as a prankster or a criminal.

Purpose> □ The present invention solves the above problem by making it possible to unlock the ship for any fixed period of time, for example, from one to several hours, even after the ship's PIN has been changed using the PIN that was used before the change. The purpose is to provide an electric lock device.

Embodiments> Examples of the electric lock device of the present invention will be described below with reference to the drawings.

FIG. 1 is a conceptual diagram showing an embodiment of the electric lock device of the present invention, where l indicates an operation switch section or a control section, and 3 indicates an electric lock. The operation switch unit 1 includes a keyboard switch 1a, a drip-proof cover 1b, etc. In the illustrated example, the keyboard switch 1a is printed with numbers θ to 9 and symbols * and #, two-color molding, or other appropriate means. 12 displayed by
It consists of 12 key tops and 12 internal switches corresponding to each key top.
The operation switch unit 1 is disposed on the outside of the room, such as at the entrance or gate of a house or the entrance of an office. In addition, by increasing the number of keys on the keyboard switch 1a, the number of combinations of operation procedures such as passwords can be increased. For example, from 0 to
It is possible to use a hexadecimal number including six characters A-F in addition to the number 9.

The control unit 2 uses a built-in microcomputer to perform various controls such as detecting the opening/closing state of the door, decoding the input signal from the operation switch unit 1, and sending an unlock signal to the electric lock 3. They are installed in places where people stay for a long time, such as the living room or kitchen in a typical home. This control unit 2 includes a password setting switch 4 as well as an unlocking switch 5. A door opening lamp 6°, a power switch 7, a power lamp 8, etc. are provided.

The password setting switch 4 can set a four-digit number using four sets of code switches, and the figure shows an example in which a 23580 number is set as the password.

The electric lock 3 is attached to an entrance door, gate, etc. When the door is closed, the latch 10 is automatically engaged and locked, and it is unlocked by an unlock signal from the control unit 2. It can also be locked by Signal lines 11a are connected between these operation switch section 1, control section 2, and electric lock 3, respectively.

11b, and a commercial power source 13 is connected to the control unit 2.

FIG. 2 is an overall block diagram showing one embodiment of the electric lock device of the present invention, and 1.20 indicates a microcomputer of the control section 2. The operation of the electric lock device of the present invention will be described below with supplementary explanation of the details of the configuration.

Unlocking with a PIN number Unlocking with a PIN number is performed by operating the operation switch section 1 and inputting a number set by the PIN setting switch 4, for example 2358.

Press the * key on keyboard switch 1a.

The Konohoku key includes a start signal key that notifies the microcomputer 20 that operation of the operation switch section is to begin;
It also serves as a clear key in case a key is operated by mistake, and when the * key is operated, the microcomputer 20 enters a state in which it accepts a signal from the operation switch unit 1. Next, when the number keys are operated in the order of 2, 3, 5, and 8, the microcomputer 20 receives this input signal and compares it with the number set by the password setting switch 4. If they match, the unlock signal S1 is sent electronically. Send to lock 3.

When the electric lock 3 receives this signal Sl, the latch 10 is pulled in by a built-in solenoid (not shown), and the electric lock 3 is unlocked.

When changing the PIN number, if the setting of the PIN setting switch 4 provided in the control unit 2 is changed, that is, in Examples 2 and 3 shown in the figure. s.

The case where 8 is changed to 9.3 and 2.7 will be described.

The microcomputer 20 reads which of the four digits of the password setting switch 4 changed first, and at the same time the microcomputer 20 starts the timer count and at the same time determines the setting i before the change, i.e. 2, 3, 5.8. is stored in the built-in RAM of the microcomputer 20. When all or part of the 4-digit number has been changed, input from the operation switch section 1 immediately *, 2, 3, 5.8 and 9, 3 .
By inputting the PIN number in duplicate at 2.7, the control unit 2
An unlocking signal S1 will be sent to the electric lock 3.

On the other hand, if the timer count reaches the set time T1 previously stored in the ROM of the microcomputer 20, for example, 2 hours, 3 hours, or a slightly longer time of 5 hours, the setting period before the change is reached! 2.3.5.8 will be erased from the RAM of the microcomputer 20, and from now on, even if a password other than the changed setting number 9 or 3.2.7 is entered from the operation switch section 1, the control section 2 will not be activated. does not output the unlocking signal S1 to the electric lock 3. Further, during a short period of time T2 set in advance, for example, 5 minutes or 10 minutes, the setting number is further changed to the above change number 9, 3, etc. ?
, 7, even if the setting switch 4 is changed (randomly) to the third number or the fourth number, the number 2 before the change
, 3, 5.8 is the RAM of the microcomputer-20
If the software of the microcomputer 20 is processed so that it cannot be erased from the PIN, even if the PIN is changed appropriately by mischief etc., the preset time T2 will be maintained.
The electric lock 3 can be unlocked with the old password of 2゜3.5.8 within the time period.

The set times Tl and T2 may be changed by providing a setting switch outside the microcomputer 20 and allowing the user to arbitrarily operate the setting switch. In the present invention, they are fixed by software.

Even if a legitimate person such as the owner does not know that the PIN has been changed by a child or another family member, the set time T+
If it's only for a while, you can unlock your home with the old PIN and enter your home with peace of mind.

If an electric lock device with a built-in alarm device enters a different PIN number repeatedly, the alarm device may sound.
This is extremely problematic as they are treated as criminals.

Reference numeral 5 denotes an unlock switch that unlocks the electric lock 3 from the location where the control unit 2 is installed. When this switch 5 is input, the microcomputer 20 outputs an unlock signal S1 to unlock the electric lock 3. Unlock it.

, 6 is the open door lamp, and the contact sets 14a and 14b installed between the door and the door frame are conductive when the door is closed, and are non-conductive when the door is opened. .

A weak current is applied so that the solenoid of the electric lock 3 does not operate, and when the current is cut off, the microcomputer 20 knows that the door is open (S2).
Then, the door opening lamp 6 is turned on.

When the contact sets 14a and 14b are in contact and a weak current is flowing, the door is closed and the door opening lamp 6 is turned off.

8 is a power lamp, 15 is a power source for Nnutem, and 13 is a rechargeable battery that is a spare battery in case of a power outage.

12 is a commercial power source, and 18 is an interface circuit between the operation switch section 1 and the microcomputer 20, which functions as a power sofa.

Next, the operation of the electric lock device of the present invention will be explained with reference to the flow chart of FIG.

If the password is set to 2358, operate the password setting switch 4 from this password and select 193.
Change to new number 27. PIN code lock switch 4
Whichever of the four digits changes first (9, 3, 2,
7) is set, the timer counting portion of the microcomputer 20 is started. Then the timer count starts. At this time, the pre-change password m112358 has already been transferred and stored in the RAM of the microcomputer 20, and the control unit 2 outputs an unlocking signal S1 to the electric lock 3 when the two passwords 2358.9327 are input from the operation switch 1. I will do it.

If the password is further changed before the preset time T2 elapses, the timer count is reset and the count is restarted.

At this time, there are two PIN numbers: the original PIN 2358 and the further changed PIN, and p9327a becomes invalid.

Further, the above procedure is repeated until the set time TI elapses.

The original PIN number 2358 remains until the time T1 has elapsed.
is always valid, and during this period, an unlocking signal Sl is sent to the electric lock 3 with two copies of 2358 and the last changed password. After T1 has elapsed, the PIN number 2358 is deleted and becomes the changed PIN number. In this case, 9,3
If a number is further changed in the flowchart of FIG. 3 after the changes in , 2.7, that number becomes the password.

<Effects> Since the electric lock device of the present invention has the above-described configuration, even after the PIN number has been changed, it is possible to unlock the lock using the PIN number used before the change within an arbitrary fixed period of time. Therefore, even if someone who is at home changes their PIN number for some reason, other people who are out of the house will be able to access the PIN number before the change even after the PIN has been changed. With electric locks that detect the number of erroneous operations and issue an alarm, the alarm will not go off and the user will not be treated as a prankster or a criminal.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram showing an embodiment of the electric lock device of the present invention,
FIG. 2 is a block diagram showing an embodiment of the electric lock device of the present invention, and FIG. 3 is a flow chart showing the operation of the electric lock device of the present invention. In the drawing, 1 is an operation switch section, 2 is a control section, 3 is an electric lock, and 4 is a password setting switch.

Claims (1)

[Claims] , 1. An operation switch section installed on the outside of the entrance/exit, an electric lock installed on the door section of the entrance/exit, etc., and outputs an unlock signal to the electric lock when the operation switch section is operated according to a predetermined procedure. In an electric lock device equipped with a control section, when the control section is changed, the PIN number set in the PIN setting section is changed and the PIN number after the change is changed for a preset period of time. The device is equipped with a control unit that outputs an unlocking signal from the control unit by operating the operation knob according to a predetermined procedure, and outputs an unlocking signal after a preset time by inputting a changed password. Features an electric lock device.