JPH01287381A - Alteration of code-number in electronic lock device - Google Patents

Abstract

PURPOSE:To permit code-numbers to be altered by a simple operation in which an external power source is turned OFF for a given time period and then ON, and new code-number is input following the input of old code-number and a given specific operation. CONSTITUTION:The external power source 11 of an electronic key device 2 is turned OFF for a given time period, and then a controller 4 is put to a mode alteration waiting state. The power source 11 is again turned ON, for a given time period, during which period old code-numbers are input, a given specific operation such as two times' continuous pushing of a closed button 7 is made, and new code-numbers are input. The altering operation of code-numbers can thus be simplified and possibility of maloperation can also be lessened.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electronic lock device in which a controlled object such as a shutter can be operated by inputting a password from a key switch of an input device, and in particular, This relates to a method for changing the password in the same device.

[Prior Art] Conventionally, this type of electronic lock device has an input device having a six-stage key switch for input, and a control device that drives and operates a controlled object such as a shutter using a signal from the input device. The password is stored in advance in the control device. The following methods are conventionally known for storing and registering a password in a control device, or for changing a registered password.

(1) Method of directly programming the PIN number in the control unit.

This is a method of setting a password by providing a mechanical means such as a rotary switch or a switch board in the control unit.

(2) A method in which the control device is provided with a mode changeover switch, the switch is operated to shift the device to the password registration mode, and the password is then input from the input device.

(3) Enter the old PIN from the input device, then operate the special key provided on the input device to change the registered PIN to shift the device to PIN registration mode, and then press the key switch. How to register a new PIN.

[Problems to be Solved by the Invention] Usually, the control unit is installed in a place where a third party cannot easily operate it, such as in the ceiling, under the floor, or in a shutter case. The problem with this method is that it is difficult to change the password.

In addition, in the method (3) above, even during normal operation,
Every time you enter your PIN, the mode goes into standby mode.

Therefore, if the special key for changing is pressed by mistake at this time, there is a problem that the password may be changed.

The present invention has been made in view of the problem of face writing, and an object of the present invention is to provide a method for changing a password for an electronic lock device in which the password can be easily changed and the possibility of erroneous operation is small.

[Means for Solving the Problems] The method for changing the password of an electronic lock device according to the present invention is such that the control device changes the password from the control device only when the password input from the input device matches the password registered in advance in the control device. In a method for changing the password of an electronic lock device that allows a control signal to be sent to the electronic lock device, the external power source of the electronic lock device is turned on for a certain period of time F to put the control device into a mode change standby state, and then the external power source is turned on. Within a certain period of time after
It is characterized by inputting the old password, performing special operations, and inputting the new password in sequence.

[Effect] First, turn off the external power of the electronic lock device.

If you turn the power back on before a certain period of time has elapsed after turning it off, the control device will not go into mode change standby mode and will return to normal mode where you can operate the controlled object by entering the registered old password. state. When the power is turned on after a certain period of time has elapsed after the power is turned off, the control device enters a mode change standby state. Here, turn on the power
After setting the password to N, perform the operation to change the password number 4 within a predetermined period of time. That is, the user inputs the old password, first performs a special operation using the existing key switch, and then inputs the new password. The new password is now registered, but if this changing operation is not completed within the predetermined time, the control device shifts to a normal state in which the controlled object is operated by inputting the registered old password.

[Example] An example of the present invention will be described with reference to the drawings. This figure is a block diagram showing the configuration of an electronic lock device 2 for controlling an electric shutter 1. As shown in FIG. In the figure, 3 is an input device, and 4 is a control device.

The input device 3 is provided with a numeric keypad 5 of 0 to 9 used for inputting a password, and an open/stop button 6 and a close button 7 for operating the shutter.

The control device 4 is provided with a CPU that judges or processes the password, control data for the shutter 1, etc. sent from the input device 3. As described later, this CPU
Two timers are configured by software, and these timers operate when the password is changed. The first timer starts counting after the CPU enters a mode change standby state, and sets a time limit for inputting the old password. The second timer starts counting after the old PIN is entered, and sets a time limit for entering the new PIN.
The PU is provided with a RAM that can rewrite and register data such as a password, and a ROM that can freely read out various data such as for controlling the shutter 2.

This CPU is connected via an output circuit 8 to a drive section of the shutter 1, which is an external control object.

Next, the control device 4 is provided with a power supply circuit 9. An external power supply 11 is connected to this power supply circuit 9 via a switching means 10 such as a breaker.

Further, the power supply circuit 9 is provided with a backup battery 12 in case the external power supply 11 is cut off. The power supply circuit 9 configured in this manner connects the CPU to the line 1.
3, so that electricity can be supplied to the CPU by an external power supply 11 or a backup battery 12.

Next, the control device 4 is provided with a reset circuit 14 . This reset circuit 14 is connected to the CP via the power supply circuit 9.
The C
This is a circuit that resets the PU. The reset circuit 14 is connected to the power supply circuit 9 by a line 15 branched from the line 13, and is supplied with electricity from an external power supply 11 or a battery 12. Further, 16 is a line for monitoring whether the external power supply 11 supplied to the reset circuit 14 is turned off. The reset circuit 14 has a timer that measures a certain amount of time from the time when the external power supply 11 is turned off, and this timer measures the timing to reset the CPU. The CPU is configured to be able to give a stop signal to the CPU and reset the CPU to its initial state.

Next, the operation of the electronic lock device 2 having the above configuration and the method of changing the password will be explained.

When performing a normal shutter operation, first, a password is input using the numeric keypad 5 of the input device 3. The password registered in advance in the RAM of the control device 4 and the input password are compared in the CPU, and if they match, the input device 3 is operated with the open/stop button 6 or the close button 7. Shutter 1 can be activated. Also, while the device 2 is in use, the external power supply 11 is turned off.
Even if it becomes FF, the power supply circuit 9 immediately switches the electricity supply source to the backup battery 12, so the RAM and R
Data stored in OM etc. will not be deleted. Furthermore, even if the external power supply 11 is turned off, the CPU is not immediately reset, but the reset circuit 14 is configured to use a timer to delay the timing of resetting the CPU for a certain period of time. operation is not interrupted each time.

Next, the procedure for changing the password will be explained.

■ Turn off the external power supply.

The external power source 11 is turned off by the opening/closing means 10 (for example, a breaker) of the external power source 11 provided separately from the input device 3.
Make it.

■ Turn on the external power supply.゛External power supply 11
for a certain period of time after turning it off! ! Afterwards, that is, after the reset circuit 14 resets the CPU to the initial state, the external power supply 11 is turned on. The CPU is now in a mode change standby state.

If you turn it on before the CPU is reset, the CPU
The camera enters a state (normal mode) in which it waits for a password to be entered for normal shutter operation. Also, a first timer configured by software in the CPU starts measurement.

■ Input of old password When the first timer finishes measuring the set time, the CPU shifts to the normal mode, but before that, input the old password. The first timer stops when the old PIN is entered, and the second timer configured with software in the CPU starts counting, but before the set time elapses, the next Perform the operation in ■.

(2) By pressing a specific key on the special operation input device 3, for example, the close button 7 twice, the CPU shifts to the password registration mode. You can use any key, and the method of operation
Since there is no need to modify the CPU software, the manufacturing cost of the device can be kept low, and mischief by third parties can be easily prevented.

■ After the CPU shifts to the PIN registration mode by the new PIN input special operation, before the second timer counts a certain period of time,
Enter your new PIN. This completes the password change operation and the new password is registered in the RAM.

As explained above, according to the method of changing the password of the electronic lock device 2 according to this embodiment, there is no need to go to the installation location of the control device 4, which is difficult to change. In addition, changing operations include turning the power on and off and special operations using existing keys, and each of these operations is time-limited by multiple timers to ensure that there is no erroneous operation or mischief by a third party. can be prevented.

In the above-described embodiment, two types of timers with different measurement start times are set in the CPU, but a single timer may be provided that imposes a time limit on a series of changing operations.

Furthermore, in order to prevent incorrect input of the new PIN number in the above-mentioned operation (2), the new PIN number may not be registered in the RAM unless it is input twice in succession, for example.

In addition, another timer is provided in the reset circuit 14 to turn off the power for actual power outage and number change operations.
It may be possible to distinguish between F and F. In other words, in the event of an actual power outage where the power is turned off for a considerable period of time, the power will be turned back on.
It is preferable to set the CPU to return to the normal mode when the result is N.

[Effect of the invention] According to the method for changing the password of an electronic lock device according to the present invention,
By turning off the external power of the electronic lock device for a certain period of time, the control device enters a mode change standby state, and then, within a certain period of time after turning on the external power, input of the old PIN, special operation, and new PIN are performed. The input is performed in order. Therefore, according to the present invention, it is possible to simplify the operation of changing the password, and it is possible to prevent erroneous operations and intentional mischief by third parties.

[Brief explanation of the drawing]

The drawing is a block diagram of an electronic lock device in one embodiment of the present invention. 1--Shutter as controlled object, 2--Electronic lock device, 3--input device, 4--control device, 11--external power source. Patent applicant Bunka Shutter Co., Ltd.

Claims (1)

[Claims] In a method for changing a password of an electronic lock device, the method of changing a password of an electronic lock device allows a control signal to be sent from a control device to a controlled object only when a password entered from an input device matches a password registered in advance in the control device. By turning off the external power for a certain period of time, the control device enters a mode change standby state, and then inputting the old PIN, special operations, and new PIN within a certain period of time after turning on the external power. A method for changing a password for an electronic lock device, characterized in that the steps are performed in sequence.