JPH0443146B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for controlling the unlocking of an electronic lock or the opening/closing operation of a building shutter by inputting a password from a key switch such as a numeric keypad. If the PIN entered above is incorrect,
The present invention relates to a method and device for handling errors in input passwords in architectural shutters or electronic locks, taking into consideration ease of use and security.

[Prior Art and Problems to be Solved by the Invention] Conventionally, in this type of architectural shutter or electronic lock, when the password entered from the key switch section matches the registered password registered in advance in the control section. , a control command is output to the drive control section of a building shutter or an electronic lock.

However, in this system, it is not very desirable from a crime prevention point of view to allow the user to immediately enter the next registration number when it is determined that the entered registration number is incorrect. In other words, suppose the PIN number is 4 digits, and 4
Assuming that it is possible to enter a digit in 1 second, it would take 10,000 seconds, or 2 hours, 46 minutes and 40 seconds, to enter all the PIN numbers from ``0000'' to ``9999.''
The registered PIN number is usually set to any number between these numbers, so even if you enter the number in the correct order starting from ``0000'', for example, you will reach the registered PIN number in a very short time, which improves security. There is a problem with this.

Therefore, it has been proposed to improve crime prevention by refusing input of a new password for a predetermined timer period when it is determined that the input password is incorrect. However, in this case, even if there is a simple input error in the password, the user must wait for the timer period, which is inconvenient. For this reason, it has been proposed that the timer can be reset when necessary, but this would halve the meaning of refusing to enter a new PIN during the timer time. You will find yourself in a dilemma.

[Means and effects for solving the problems] In view of the above-mentioned circumstances, the present invention provides an error processing method and an error processing device for input passwords in architectural shutters or electronic locks that can eliminate these drawbacks. According to the first invention, when the password entered from the key switch section matches the registered password registered in advance in the control section, the drive control section of the architectural shutter or electronic lock In architectural shutters or electronic locks that are configured to send out control signals, if the input password is incorrect and a specific error condition occurs, a long-term timer is activated, and the timer time of the long-term timer is activated. The input of a new password from the key switch section is refused until the timer has elapsed, and the operation of this long timer can be reset by key operation of an error reset key provided on the key switch section. and whether or not to reset the long timer operation using this error reset key.
ON-OFF of the error recovery switch provided in the control unit
This is a method for handling errors in input passwords in architectural shutters or electronic locks, characterized in that the selection can be made by switching.

Further, the second invention includes a key switch unit into which a password can be input, and a key switch unit that determines whether or not the input password from the key switch unit matches a registered password registered in advance, and determines whether or not the password input from the key switch unit matches a registered password registered in advance. In the architectural shutter or electronic lock, the control section is provided with a determination section that sends a control signal to the drive control section of the architectural shutter or electronic lock when the determination is made. It comprises at least a number input key for inputting a number, an input clear key for resetting the input password, and an error reset key for recovering from a specific error state caused by an incorrect input password. On the other hand, the control unit operates a timer based on a command from the determination unit based on the fact that the entered PIN number is incorrect, and inputs a new PIN number until a predetermined timer period elapses or the To select between a long timer that outputs to refuse until the timer operation is reset by key operation of the error reset key, and whether or not to reset the timer operation of the long timer by the error reset key, by switching ON/OFF. This is an error processing device for an input password in a building shutter or an electronic lock, characterized in that it is equipped with an error recovery switch.

Due to these configurations, the present invention rejects input of a new PIN for a while if the entered PIN is incorrect, but if necessary, resets this and immediately enters a new PIN. It is designed to allow input and also to select a state in which this reset is possible or not.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, 1 is a key switch section for controlling an electronic lock or a construction shutter, and the key switch section 1 has numbers "0" to "0".
Numeric keys 1-N to input "9", input clear key "C", registered password change key "*", all clear key "AC", shutter open key "△", shutter close key "▽", Shutter stop key “□”
It consists of control keys 1-C, etc. 3-M is a monitor output indicator (or any notification means such as an electronic buzzer may be used), and in this embodiment, a light emitting diode is used to notify the operator of the control status and guide the next control operation. It consists of an LED and is provided in the key switch section 1.

Reference numeral 2 denotes a control unit installed in a place out of sight, such as in the ceiling, under the floor, or inside the shutter case. , a monitor output control section 2-MC that controls the lighting and blinking of the monitor output indicator light 3-M, and a key switch section 1 that controls the electronic lock, construction, etc. based on the input data therefrom and the contents of the register, memory, etc. The judgment unit 4 sends out the drive control signal DCNT to drive and control the shutter for use, and in response to the control from the judgment unit 4, the electronic lock unlocking drive control signal IK or the opening signal IO which is the shutter drive control signal is sent. , closed signal IC,
It consists of a drive control output section 2-CONT, etc., which sends out a drive control signal of a stop signal IS.

The input control section 2-IC is the key switch section 1
The input information encoded from the input signal line LI
The control signal is received through the microcomputer 4-1 of the judgment unit 4, and the rejection of input acceptance is controlled based on the control signal from the microcomputer 4-1 of the judgment unit 4. The monitor output control unit 2-MC controls the monitor output signal line LM in order to turn on and blink the monitor output indicator lamp 3-M in response to a control command from the blinking control circuit 2-F, which will be described later.
The flashing control signal is sent through the In addition, the blinking control circuit 2-F determines the type of blinking signal of the monitor signal in accordance with the control status determination result of the determining unit 4 (microcomputer 4-1) in order to notify the operator of the control status determination result. It controls the monitor output control section 2-MC by specifying it as described later.

2-B is an input buffer that temporarily stores the input PIN number, 2-CC is a digit counter that counts the number of digits input in the input PIN number, and 2-MP is an EEPROM etc. that stores a predetermined PIN number. The password registration unit 2-EC consisting of a non-volatile memory is an error counter that counts the number of operation errors. In addition, 2-SC is a digit number setting switch for predetermining the number of digits of the PIN number, and 2-CL is a digit number setting switch for predetermining the number of digits of the PIN number.
For example, if the PIN set for an inspection remains and the contents are uncertain when the user obtains it, the PIN may be forced to a certain clear value, for example, all digits. This is a password clear switch for setting the password to 0.

On the other hand, 2-TL is a long-time timer, and when a specific error occurs or an error is repeated a specific number of times, the long-term timer 2-TL operates upon receiving a command from the judgment unit 4, and then This is to monitor the time in order to control the input control unit 2-IC to refuse input of a new password over a long period of time. 2-ES is a number setting switch, which is used to set the number of operation errors to a predetermined number. 2-REC is an error recovery switch, and is a special switch for resetting the long time timer 2-TL which is activated due to a predetermined operation error (a specific error or an error repeated a predetermined number of times).

2-TC is a control timer, and if the entered PIN is correct, it will immediately determine whether you want to change the PIN within a predetermined time, open/close the shutter,
This monitors the elapse of a corresponding period of time during which an input is required to indicate whether the driver wants to control the drive to stop the vehicle.
2-TS is a control time timer that monitors whether a password of a predetermined number of digits has been entered within a predetermined time.

In this way, the judgment unit 4 makes judgments based on each input information, control conditions, etc., and generates each control signal in accordance with the judgment, and includes the PIN number registration unit 2-MP,
Various setting conditions such as the digit counter 2-CC, time limit timer 2-TS, etc., input information such as the password stored in the input buffer 2-B, and control status are judged and the control is performed via the input control unit 2-IC. Key switch part 1
In addition to controlling the availability of input operations from the output control signal OCNT, the output control signal OCNT controls the lighting and blinking of the monitor output indicator 3-M via the monitor output control unit 2-MC to notify the operator of the control status. It guides and instructs operations. When the input password stored in the buffer 2-B by inputting the password from the key switch section 1 matches the registered password registered in the password registration section 2-MP, the determination section 4 In response to the command, an unlock drive signal IK is sent from the drive control output unit 2-CONT in the case of an electronic lock, and a drive control permission signal is sent to the input control unit 2-IC in the case of an architectural shutter. Then, in response to the shutter operation selection operation from the control key 1-N, the drive output control section 2-CONT
The shutter open signal IO, close signal IC, and stop signal IS are sent from the shutter. Further, when an operation error occurs, an error counter is counted or a timer is activated, and after a predetermined period of time, the control is returned to the control state of waiting for input.

Furthermore, if the registered PIN change key "*" is operated prior to inputting the PIN from the key switch section 1, and the PIN input from the key switch 1 matches the registered PIN, the determination section 4 A new password input permission signal is sent to the input control unit 2-IC, and the number of input digits reaches a predetermined number while storing the new number input from the key switch unit 1 in the input buffer 2-B. When the contents of the input buffer 2-B are transferred and stored as a new registered PIN to the PIN registration unit 2-MP and registered,
Thereafter, the determining unit 4 performs various controls such as waiting for an initial control input. As described above, since the control function of the determining section 4 is complex and sophisticated, it is preferable to configure the determining section 4 with a microcomputer 4-1 and a program memory 4-2 such as a ROM storing a program for controlling the microcomputer 4-1.

In the embodiment of the present invention configured as described above, the characteristic functions of this device can be roughly divided into four types. The second is control for changing the registered password, the third is error handling control in case the password is entered incorrectly, and the fourth is control for clearing the registered password, and these will be described in sequence below.

<Unlocking or opening/closing drive control> (1) When the control state is in the initial control input waiting state, operate the numeric keys 1-N of the key switch section 1 to input the password in digit order. Input control signal ICNT
Input control unit 2-IC under control of judgment unit 4
transfers and stores the input password to the input buffer 2-B via the determination unit 4 for each digit of the input number, and counts up the digit counter 2-CC by a count value of 1.

(2) The data of digit number counter 2-CC is always compared with the set digit value of digit number setting switch 2-SC,
If the number of input digits is less than the set digit value,
The determination unit 4 causes the input control unit 2-IC to maintain the input permission control state and input buffer 2-B.
Continue entering numerical values repeatedly.

(3) Next, when the digit counter 2-CC matches the setting made by the digit setting switch 2-SC, the input buffer 2-B registers the accumulated content (input PIN) in PWI and PIN registration unit 2-MP. The registered information (registered PIN number) is compared with the PWR, and as a result, the following processing is performed.

B. In the case of a mismatch, the error counter 2-EC counts up and performs error processing, which will be described later, and changes the control state to wait for input of the PIN number. When the error is repeated and the count value of the error counter 2-EC reaches a predetermined value set by the number setting switch 2-ES, resulting in a specific error state, a command from the determining unit 4 is issued as described below. The long time timer 2-TL is activated to enter a mode in which input from the key switch unit 1 is rejected or ignored until a predetermined timer period has elapsed, and then the mode returns to (1).

(b) In the case of matching (a) In the case of electronic lock: Drive control output section 2-
After sending the unlock drive control signal DCNT to CONT, return to (1).

(b) For architectural shutters: Input control section 2
-Switch to control for IC and control key 1
Control timer 2-TC is sent at the same time as sending a drive control permission signal to permit input from -C.
Activate. Here, control timer 2-
The TC setting time should preferably be 10 seconds or more. And control timer 2-TC
At the same time as the start-up, the blinking control circuit 2-F issues a control command for the first blinking cycle (for example, a long cycle of 0.5 to 2 Hz), causing the monitor indicator light 3-M of the key switch section 1 to blink, and prompting the operator to It is announced that the control status is that the drive control input of the electronic shutter is permitted.

(c) During the operating time of control timer 2-TC, if you select and operate the key corresponding to "Open △", "Close ▽", or "Stop □" of control key 1-C, Contents (open, close, stop)
The determining unit 4 identifies the drive control signal DCNT and sends the corresponding drive control signal DCNT to the drive control output unit 2-CONT.
CONT outputs shutter drive control signals (open signal IO, close signal IC,
A stop signal IS) is sent to the drive mechanism of the architectural shutter to open, close, and stop the shutter, and then return the control state to the initial control input waiting state in (1). If the operation is not completed, it is assumed that the time has exceeded and the process returns to the initial control input waiting state in (1).

Here, since the drive control output is generally relay control (sometimes a non-contact relay), the output signal is assigned one bit at a time in the logic of signal generation conditions for open, close, and stop.

<Change of PIN> (1) Before inputting the PIN that matches the registered PIN from the numeric keys 1-N, by operating the registered PIN change key "*", the determination unit 4
The control state is switched, and the drive control output section 2-
Instead of generating the drive control signal DCNT to CONT, an input control signal ICNT for permitting input of a new PIN number is sent to the input control unit 2-IC, and at the same time, the digit counter 2-CC is cleared and the new PIN number is In preparation for the input, the time limit timer 2-TS is activated.

(2) At the same time, the blinking control device 2-F sends out a control signal with a second blinking cycle (for example, a medium cycle of 1 to 3 Hz) via the monitor output control unit 2-MC, The monitor output indicator light 3-M is made to blink at this second blinking cycle to notify the operator that permission to input the new password has been granted.

(3)(a) Then, when the operator inputs a new PIN using the numeric keys 1-N, the numerical values of each digit of the PIN are stored in the input buffer 2-B, and
Count up digit counter 2-CC,
This is repeated until the set value FCC set in the number of digits setting switch 2-SC is reached.

b Before the count value CCC of digit counter 2-CC reaches the set value FCC, the control time timer 2-
When TS ends, digit counter 2-CC
is cleared and the control operating state returns to waiting for initial control input. In this case, the password is not changed and the old password remains.

(4) The count value CCC of digit counter 2-CC is the set value within the control time TLM of control time timer 2-TS.
When the FCC is reached, the stored content PWI of the input buffer 2-B is transferred to the password registration unit 2-MP, and this is set and registered as a new registration number PWR.
At the same time, the blinking control circuit 2-F is changed to a third blinking cycle (for example, a short cycle of 5 to 10 Hz), and at this blinking cycle, the monitor output indicator lamp 3-M
After blinking to notify the operator that a new password has been registered, the control state returns to waiting for initial control input.

From this point on, the newly entered valid password becomes the new password.

In this embodiment, in order to change the registered PIN number, the user operates the registered PIN change key "*" and then enters the already registered PIN number. After that, you may be able to enter a new PIN by operating the registered PIN change key "*".In short, when changing the registered PIN using the key switch section 1, the previously registered PIN must be changed. It would be good if the information could not be changed without inputting the information.

<Error processing> (1) Long time timer 2-TL Now, the judgment unit 4 is provided with a long time timer 2-TL, which is used when a specific error occurs (for example, when an incorrect registration number has been input a predetermined number of times). is counted by the error counter 2-EC), this long-term timer 2-TL will be started, and after that, no input from the key switch section 1 will be accepted during the timer time of the long-term timer 2-TL. The input control unit 2-IC is controlled so that it is not rejected and set in the input buffer 2-B.

That is, the judgment section 4 reads the state of the long time timer 2-TL, and while it is in operation, the input from the key switch section 1 causes the input buffer 2-B to be reset due to the return of the long time timer 2-TL when the timer time has elapsed. Control is such that the password cannot be re-entered until it has been cleared.

Here, the setting time of long timer 2-TL is:
For example, if the number of digits in the PIN number is four, it is desirable to wait at least 30 seconds. This means that if an intruder or other unauthorized person repeatedly enters a number at high speed while changing the number, if one of them happens to contain the correct PIN number, the lock can be unlocked, etc.
This is because it is necessary to prevent things from becoming controlled. Assume that it takes one second to enter a four-digit PIN number. 10000 to enter the PIN from ``0000'' to ``9999'' if there is no input or rejection time due to error.
The process ends in 2 hours, 46 minutes and 40 seconds, so on average it takes just over an hour to find the correct PIN. On the other hand, if the input impossible/rejection time is set as described above, at least
This would take 31 seconds, and an average of over 43 hours to reach the correct number, which could be considered impossible. If the input failure rejection time were set to 3 minutes, it would take more than 10 days and it would be almost impossible to find the correct password, which is extremely convenient for crime prevention.

(2) Error recovery By the way, if an input error cannot be recovered for more than 30 seconds, even if the owner or other authorized operator makes a careless mistake and makes an incorrect input, even if the user notices the incorrect input and immediately performs the correct operation, the error will continue for more than 30 seconds. has the inconvenience of not being able to re-enter it. However, in this device, an error reset key AC is set as one of the control keys 1-C, and when this error reset key AC is operated, the long timer 2-TL is operating, that is, input is disabled. Even during the rejection period, the long time timer 2-TL will be reset to recover from the specific error condition.

However, if the long time timer 2-TL is always set to be resettable, the long time timer 2-TL
There is no point in establishing this, and it is extremely problematic in terms of crime prevention. However, in this device, an error recovery switch 2-REC is provided inside the control section 2 isolated from the key switch section 1, which is the operation section, and when the long-time timer 2-TL is operating,
The judgment section 4 always checks the status of this switch, and a. When the error recovery switch 2-REC is ON, the long time timer 2-TL is activated due to an input error from the key switch section 1. Even if activated, if the determining section 4 detects operation of the error reset key AC, the long time timer 2-TL is reset, and the control state described above is returned to the initial control input waiting state to enable re-input.

b When error recovery switch 2-REC is OFF, press error reset key AC.
operation is completely ignored, and the long timer 2 is always
-The specific error state will be maintained until the TL operation continues for a predetermined period of time and ends, and during this time no re-input will be possible.If controlled in this way, it would be extremely desirable in terms of crime prevention. .

<Clearing the registered PIN number> When the control device for the electronic lock and architectural shutter according to this embodiment is shipped from the factory and arrives at the user, the contents of the PIN registration section 2-MP are not guaranteed. , the number entered during the inspection at the factory may remain without being deleted. Also, you may forget your registered PIN number. In such a case, since the current registered password is unknown, a situation arises in which it is not possible to unlock or open/close the door, or even to enter a new password.

However, in this embodiment, the control unit 2 is provided with a password clear switch 2-CL which is normally off.
-By turning on CL, the content PWR of the PIN registration section 2-MP is forcibly cleared and the registration number is set to a basic specific PIN with all digits "0", for example. . Therefore, if the current PIN number is unknown, open the control unit 2, operate the PIN clear switch 2-CL, set this specific PIN as the registered PIN, and then clear any PIN using the above operations. It can be newly set up using simple steps.

[Operations and Effects] In summary, the method and device of the present invention are configured as described above, so that it is possible to control the drive of an electronic lock or a building shutter by inputting a password from the key switch section. However, if a specific error condition occurs due to an incorrect PIN input, a long-term timer is activated and, as a general rule, no new messages from the key switch are issued until the timer period has elapsed. The input of the correct PIN number is rejected. As a result, it is possible to effectively prevent the user from inputting a large number of passwords in succession in a short period of time and deciphering the password at an early stage.

By the way, as mentioned above, if a specific error occurs and a new PIN cannot be entered until the long-term timer has elapsed, the owner or other authorized operator will notice that the number is incorrect and immediately enter the correct PIN after entering the erroneous number. Although this involves the inconvenience of not being able to re-enter the information even if the operation is performed, in the present invention, by operating the error reset key provided on the key switch section, the long timer is reset and the specific error state is cleared. You will be able to recover and enter a new PIN.

Moreover, regarding recovery control of a specific error state using this error reset key, it is possible to enable or disable recovery by switching ON/OFF of an error recovery switch provided in a control section isolated from the key switch section. , can be freely selected. As a result, if the authorized user will be away for a long time, the user should turn off the error recovery switch so that the error state cannot be recovered even if the user operates the error reset key. The function to prevent PIN code decoding can be fully demonstrated, making it extremely desirable for crime prevention.On the other hand, when you will be away for only a short period of time, you can recover from a specific error state by operating the error reset key. This control switching is possible,
You can use it according to your convenience.

[Brief explanation of drawings]

The drawings show an embodiment of an input password error processing method and error processing device in a building shutter or electronic lock according to the present invention, and FIG. 1 is a block diagram thereof. In the figure, 1 is a key switch section, 1-N is a numeric key, 1-C is a control key, 2 is a control section, 2-IC is an input control section, 2-B is an input buffer, 2-MC is a monitor output control section , 2-CC is the digit counter, 2
-EC is an error counter, 2-F is a blinking control circuit,
2-MP is the password registration section, 2-CL is the password clear switch, 2-SC is the number of digits setting switch,
2-ES is a count setting switch, 2-REC is an error recovery switch, 2-TL is a long time timer, 2-TS
is the control time timer, 2-TC is the control timer, 2-
CONT is drive control output section, ICNT is input control signal, OCNT is output control signal, DCNT is drive control signal, IK is unlock drive signal, IO is open drive signal, IS
is a close drive signal, ID is a stop drive signal, 3-M is a monitor output indicator light, and 4 is a judgment unit.

Claims (1)

[Claims] 1. A control signal is sent to the drive control section of the architectural shutter or electronic lock when the password input from the key switch section matches a registered password registered in advance in the control section. In architectural shutters or electronic locks, if the input password is incorrect and a specific error occurs, a long timer is activated, and the key switch section is activated until the timer time of the long timer elapses. input of a new PIN will be rejected,
The operation of the long-term timer can be reset by key operation of an error reset key provided in the key switch section, and whether or not the operation of the long-term timer is to be reset by the error reset key can be determined. 1. A method for handling errors in input passwords in architectural shutters or electronic locks, characterized in that selection can be made by switching ON-OFF of an error recovery switch provided in a control unit. 2. In the case of an electronic lock, the drive control signal is an unlock control signal for unlocking, and in the case of an architectural shutter, it is an unlock control signal for opening, closing, and stopping the shutter in the key switch section. 2. A method for handling errors in input passwords in architectural shutters or electronic locks according to claim 1, characterized in that the signal is a drive control signal for driving and controlling the shutter in response. 3. Claim 1, characterized in that the specific error state is configured such that an incorrect PIN number is counted a predetermined number of times.
Error handling method for entering a password in a building shutter or electronic lock as described in Section 2. 4. Determine whether or not the key switch section into which a PIN number can be entered and the PIN number input from the key switch section match a registered PIN number registered in advance;
In the architectural shutter or electronic lock, the control section is provided with a determination section that sends a control signal to the drive control section of the architectural shutter or electronic lock when it is determined that the keys match. The system includes a number input key for entering a PIN, an input clear key for resetting the entered PIN, and an error reset key for recovering from a specific error state caused by an incorrect PIN. The controller is equipped with at least a key, and the control unit operates a timer based on a command from the determination unit based on the fact that the input PIN number is incorrect, and inputs a new PIN number for a predetermined time period. a long-time timer that outputs a command to refuse until the timer elapses or the timer operation is reset by key operation of the error reset key;
An input password for a construction shutter or an electronic lock, characterized in that it is equipped with an error recovery switch for selecting whether or not to reset the operation of a long-term timer using an error reset key, by switching between ON and OFF. error handling device.