JPS6217279A - Electronic lock - 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] In the conventional electronic lock with ten key set, an unspecified person can unlock the electronic lock using a password, but if the lock is to be unlocked for a certain period of time or for a certain period of time, it must be locked with a separate lock. Otherwise, the only way to lock it was to set a different PIN number for that period.

For example, if there are multiple accountants and one person in charge, it may be desirable to use a system that prevents the person in charge from unlocking items locked by the person in charge.

The present invention uses two PIN numbers; one PIN B is the same as the PIN for a conventional electronic lock, and is used by an unspecified person to unlock the electronic lock; Number A is a PIN number that has a locking and unlocking function superior to PIN B, which has been improved to make it easier to manage the electronic lock.

Next, one embodiment of the present invention will be described in detail with reference to the drawings.

Figure 1 shows the configuration of the current system.

l stands for LCD (liquid crystal) and LED (light emitting diode)
It is used to display the numbers entered from the numeric keys 2, PIN A, and PIN B on the LCD, and to display the status of lock, unlock, and battery level check results on the LED.

2 is a keyboard having numbers from 0'' to 19''C''''#''.

3 is a circuit that determines whether the number entered from the numeric keypad 2 is the same as the password A stored in 4.

4 is a storage unit for the PIN number A, and there is a diode on the board,
Set with a resistor, digital switch, etc., or set 2 in advance.
There is also a method of storing numerical data entered from the keyboard in memory.

5 is a circuit that identifies whether the number inputted from the numeric keypad 2 is the same as the password B stored in 6.

6 is a storage unit for the password B.

7 is a circuit that maintains the mode state of lock mode and unlock mode, and when the number inputted from the numeric keypad 2 is defeated by the AG identification number A, the PIN identification section 3 outputs a defeat signal for the PIN A. is output, and each time a matching signal for the PIN is output, the mode switches between lock mode and unlock mode, such as if the mode is lock mode, it goes to unlock mode, and if it is unlock mode, it goes to lock mode. It has become.

8 is a circuit that controls the match signal of the password B according to the mode state of 7;

9 is an output section, which is normally connected to a solenoid, motor, relay, etc.

Assume that the initial state is now the lock mode state. The LED indicating the lock status is lit on the display section 1, and when numerical data is entered using the numeric keypad 2, the PIN A identification section 3 and the PIN B identification section 5 will confirm the entered digits. The permutation and digits of are checked and when they match the preset PIN A and PIN B, a matching signal is output from the PIN A identification section 3 and the PIN B identification section 5. However, in the lock mode state, the PIN B-match signal output from the PIN B identification section 5,
8, and is not output to the output section 9. In other words, in the lock mode state, the PIN number B is invalid and only the PIN number A is valid.

In the lock mode state, if a number with the same sequence and digits as the PIN stored in the PIN A storage section 4 is entered from the numeric keypad input section 2, the PIN A-match will be detected from the PIN A identification section 3. A signal is output to the output section 9 to unlock the door, and the mode state of the mode holding section 7 changes from the lock mode to the unlock mode. Accordingly, LP and D indicating the lock mode on the display section 2 go out, and the LED indicating the unlock mode lights up.

In the unlock mode state, if the permutation of the numbers entered from the numeric keypad input section 2, the number of digits matches the number in the PIN B storage section of 6, a matching signal is output from 5, passes through 8, and is output to 9, unlocking the door. will be held.

Further, if the permutation of the numbers input from 2 and the number of digits match the password A of 4, the mode held at 7 becomes the lock mode. However, at this time, the lock will not be unlocked.

In this way, by having two or more PIN numbers and having one of them have a management function for the electronic lock system, it is easier to manage the electronic lock system.
Moreover, the reliability of the electronic lock system can be improved.

For example, the superior PIN A is known only to the person in charge of the whole business, and the lock is unlocked and locked at the start and end of work, and each person in charge knows the PIN B and can open and close the lock only during work. It can be used for many purposes and is very convenient.

[Brief explanation of the drawing]

The figure is a block diagram of an electronic lock system according to the present invention. Explanation of symbols

Claims (1)

[Claims] A display section, a numeric keypad input section, a first password identification section, a first password storage section, a second identification section, a second storage section, a mode holding section, and a lock opening/closing section. and a control section that controls the transmission of the coincidence signal from the second identification section to the output section according to the mode of the mode holding section. When a match signal is generated from the numeric keypad and the mode of the mode holding section is changed from locked to unlocked or from unlocked to locked state, and when the mode is changed from locked to unlocked, an unlock output is generated, and the input from the numeric keypad is If it matches the PIN number 2, the second
An electronic lock characterized in that it is configured to generate an unlocking output only when a matching signal is generated from the identification section and the mode of the mode holding section is in an unlocked state.