JP2580225B2 - Numeric keypad type electric lock device and its system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a ten-key type electric lock device applied to, for example, a hotel or a leased apartment where a room user frequently changes, and a system therefor.

[Problems to be Solved by Related Art and Invention] Generally, a ten-key type electric lock device can unlock an electric lock when the same number as a number registered in advance is input by operating a ten-key. .

If such a device is applied to a room where users change frequently, such as a hotel or a leased apartment, it is necessary to change the registration number for each burglar-proof user. In order to make it possible without troublesome and troublesome wiring work between the user and the device, a new number can be registered by performing a hardware reset operation such as a mechanical key or power-off.

However, in such a device, every time the user changes,
A manager or a maid has to accompany the user to the room to perform a hard reset operation, which requires labor and a lot of management costs.

If the user has forgotten the registered code, the user must perform a reset operation as described above and register a new number again, but the administrator or maid must accompany the user again. A similar problem arises.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a ten-key type electric lock device and a system therefor which can easily register a personal identification number without impairing the antitheft property and without human intervention.

[Means for solving the problem]

In order to solve the above-mentioned problem, as shown in a basic configuration diagram of FIG. 1, a ten-key type electric lock device B made according to the present invention.
It includes an input key operation means B ₁ having a numeric keypad for inputting a code number is changed in accordance with a predetermined encipherment rule of basic numbers, personal identification number storage means B ₂ for storing a registration code number
When, with the basic number of changing in accordance with the inverse of the decoding rule a personal identification number inputted by the input key operation means B ₁ on the numeric keypad and the encryption rule, the security code memory means B ₂
A first comparison means B ₃ for comparing with the registered personal identification number stored, generates the unlock signal when the two match, the
The personal identification number input by the ten-key based on the basic number was changed according to the decoding rule, using the registration personal identification number stored in the secret number storage means B _2, in accordance with a predetermined number formed rules the number forming unit B ₄ to form a number, when said comparison result both of the first comparison means B ₃ do not coincide, the number the number forming unit B ₄ are formed, the input key operation means B ₁ numeric keypad in the password input by comparing the basic number is varied according to the decoding rule, the second comparison means B ₅ for generating the unlocking signal when both match, the first and and an electric lock B ₆ which operates being driven by unlocking signal from the second comparison means B ₃ and B _5, when the result both of the comparison by said second comparison means B ₅ are the same, the Input key operation means
The basic numbers of the password input is varied according to the decoding rule by B ₁ on the numeric keypad, as a new registration code number, to store the personal identification number storage means B ₂ instead of the earlier registered PIN I have to.

Further, as shown in the figure, the numeric keypad type electric lock system made according to the present invention forms a basic number according to a predetermined basic number forming rule in response to input of predetermined information, and sets the basic number to a predetermined number. varied in accordance with encipherment rule forms a personal identification number, a personal identification number generator a to output in a form that can recognize the PIN, the number forming unit B ₄
Based on the basic number obtained by changing the password input by the numeric keypad in accordance with the decryption rule, and forming a number in accordance with the same basic number formation rule as in the password generating apparatus A. And an electric lock device B.

Then, the personal identification number generating apparatus A, as shown in the figure, an input operation means A ₁ for inputting an instruction for forming a PIN for unlocking the electric lock of the room number and No.該番room, a PIN storage unit a ₂ for storing information relating to the PIN for unlocking the electric lock room No. room number and該番, according to the input room number and the command by the input operation means a ₁ wherein using the information about the room number stored in the secret number storage unit a _2, together to form the basic numbers in accordance with the general number forming rule, a new security code to the basic number is varied according to said encipherment rule a personal identification number forming unit a ₃ is formed, and output means a ₄ for outputting a form that can recognize the code number formed by dark license number forming unit a _3, code number formed by said security code forming unit a ₃ To The information in place of the previous information of the personal identification number storage unit A ₂ is provided to store.

(Operation)

In the above configuration, the password generation device A forms a password by further changing the basic number formed according to a predetermined basic number formation rule according to a predetermined encryption rule, and outputs the password in a form that allows the password to be recognized. I do.

Meanwhile, the ten-key type electric lock device B, PIN storage unit code number B ₂ the same basic numbers and registration personal identification number stored in the varied in accordance with a predetermined encryption rule by the input key operation means B ₁ Keypad It is input, the electric lock B ₆ unlocked by unlocking signal from the first comparison means B _3. For example, personal identification number storage means code number B ₂ the same basic numbers and registration personal identification number stored in the varied in accordance with a predetermined encryption rule, even if it is not input by the input key operation means B ₁ on the numeric keypad, forming basic number and said encipherment rule identification number inputted is varied in accordance with the inverse of the decoding rule by the numeric keypad, on the basis of the input personal identification number, the number forming unit B ₄ in accordance with a predetermined number formed rules the same time as Sarera number, along with the electric lock B ₆ unlocked by unlocking signal from the second comparison means B _5, the basic number of the password input is varied according to the decoding rule by the numeric keypad Password storage means as a new registered password
It will be stored in the B _2.

In particular, the number forming unit B ₄ is a personal identification number input by the ten-key based on the basic number was changed according to the decoding rule, using the registration personal identification number stored in the secret number storage means B _2, predetermined Since the number is formed in accordance with the predetermined number forming rule or the number is formed in accordance with the same predetermined number forming rule as that of the password generating device A, the ten-key type electric number is generated by using the password generated by the password generating device A. performs unlocking of the electric lock B ₆ in the lock device B, also it is possible to register the new PIN.

Therefore, in hotels, lease apartments, etc., in which the user of the room changes one after another, every time the user changes, the user is notified of the personal identification number generated by the personal identification number generating device A, and inputs the personal identification number to the input key operating means B. By having it performed by ₁ , it is possible to easily change the password for each user.

In addition, since the input operation of the personal identification number accompanying the unlocking of the electric lock is performed by key input using the ten keys without using an intermediate medium for storing the personal identification number such as a magnetic card, when the personal identification number is changed, The notification of the personal identification number to the user or the like of the room is made not by the above-mentioned intermediate medium but by oral communication or the like.

For this reason, compared to the case of using the intermediate medium as described above, the possibility of the third party being able to know the personal identification number or the changed personal identification number by reading the magnetic card or the like is reduced,
It is possible to enhance the confidentiality of the personal identification number and prevent a situation in which the electric lock is unlocked by a third party other than the person concerned, such as a user of the room.

Moreover, to form the basic numbers to be compared with the second comparison means number B ₅ in number forming unit B ₄ was formed, to the basic number from the code number in accordance with the inverse of the decoding rules and the encipherment rule Is changed inside the ten-key type electric lock device B, and the password is changed outside the ten-key type electric lock device B in such a manner that the basic number changed according to the decryption rule opposite to the encryption rule can be recognized. Is not output to

For this reason, the user in the current room who only needs to know the current PIN, and even the current PIN must not know the basic number that is the key to knowing the changed PIN when changing the PIN It is possible to reliably prevent the information from being known to a third party.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 2 is an external view of a front machine as a personal identification number generating device, and FIG. 3 is a partially exploded external view of a ten-key lock as a ten-key electric lock device. The front machine of FIG. The ten-key type electric lock system is constructed by installing the ten-key type lock shown in FIG. 3 at the door of each room of the hotel.

In FIG. 2, the front machine includes an input key operation unit 10 including ten keys 10a including keys 0 to 9 and a check-in key 10b, a display unit 12, and a printing unit 14. In a case 16 in which the display unit 12 is disposed on the surface, an electric circuit is housed in addition to the printing mechanism of the printing unit 14. The numeric keypad 10a of the input key operation unit 10 is used to input a room number used by the customer, and the check-in key 10b generates a password for unlocking the electric lock of the room of the number input with the numeric keypad 10a. Operated.
The room number input to the numeric keypad 10a is displayed on the display unit 12, and the password generated by operating the check-in key 10b is printed on the roll paper together with other necessary information in the printing unit 14.
It is printed on 14a and output in a recognizable form. The roll paper 14a on which the personal identification number is printed is cut by a cutter (not shown) and handed to a checked-in customer.

In FIG. 3, a ten-key type lock includes a ten-key 20a consisting of keys 0-9, a memory key 20b, and a clear key 20.
c, an input key operation unit 20, a display unit 21, an electric lock 22 having a locking / unlocking state switch 22a, a power supply 23 including a battery 23a, an indicator lamp 24, and an emergency mechanical key 25.
And a door handle 26, which are integrally formed and embedded in the door. The case 27 houses an electric circuit that is electrically connected to the electric lock 22 and the power supply 23 via the connector 28.

The numeric keypad 20a of the input key operation unit 20 is used to input a personal identification number (hereinafter abbreviated as a check-in personal identification number) generated by the front machine (FIG. 2) for unlocking the electric lock 22 and a personal identification number of your choice. Is operated by the memory key 20b
Is operated when registering your favorite PIN entered using the numeric keypad 20a, and the clear key 20c is used when the entered check-in PIN is disabled, such as when the entered number is incorrect. Operated. The password input by the numeric keypad 20a of the input key operation unit 20 is displayed on the display unit 21, and when the input password is equal to the registered password, or when the input password is formed internally with the input password. The electronic lock 22 is unlocked when the password to come to or the next to come is equal.

Next, electric circuits of the front machine and the ten-key type lock will be described with reference to FIGS. 4 and 5, respectively.

In FIG. 4, the input key operation unit 10, the display unit 12, and the printing unit 14 are connected to a controller 18. The controller 18 is constituted by a microcomputer including a CPU, a ROM, a RAM, and the like. The CPU according to a control program stored in the ROM as shown in a flowchart described later with reference to FIG. In order to execute such tasks, the RAM is provided with a storage unit for storing the input room number, the output password and the current password of each room.
Note that Q _{1 to} Q ₄ are drive transistors for driving the display unit 12.

In the ten-key type lock shown in FIG.
20, the display unit 21 and the electric lock 22 are connected to a controller 28. The controller 28 has a CPU,
It is composed of a microcomputer consisting of ROM, RAM, etc. According to the control program stored in the ROM, the CPU of the controller 28 performs tasks such as password creation, password conversion, and password comparison as shown in the flowcharts of FIGS. 10 (a) and 10 (b) which will be described later. In order to perform this task, there is an input password in the RAM, an encryption reverse conversion password, a check-in password, a password you like, your next password, and the next password. There is provided a storage unit for storing each of the numbers, and the storage unit for storing the check-in password is provided with a portion for storing an unusable flag for disabling the password stored in the storage unit. .

The electric lock 22 has a locking / unlocking solenoid 22b. When an unlocking signal is applied to the solenoid 22b, the electric lock 22 is unlocked, and at the same time, the locking / unlocking state switch 22a is also unlocked.
Then, once the door handle is turned, the electric lock 22 is in the locked state, and at the same time, the locked / unlocked state switch 22a is also in the locked state.

Put the above-mentioned front machine at the front of the hotel,
By operating the input key operation unit 10 of the front machine to generate a personal identification number of each room and notifying the user of the room, the user can enter the input key operation unit 20 of the ten-key type lock of the room. To enter the password entered at the front desk to unlock the electric lock 22 in the room and enter the room. it can.

Also, a new PIN is generated on the front machine,
The new password can also be unlocked, and once unlocked with the new number, unlocking with the previous password is disabled, so that only the new number can be used as the password for the room. Therefore, it is only necessary to inform the customer of a new password at the front desk, eliminating the need for a maid or the like to accompany the room and register the password.

In order to be able to do the above, it is necessary for the numeric keypad to accept the next security code generated by the front machine as the correct security code. Means for forming a number in accordance with the rules.

Some of the above rules are conceivable, one example of which will be described with reference to FIGS. 6 to 8. The basic data of the currently used personal identification number (corresponding to the basic number) is the sixth.
Assuming that the basic data is composed of seven digits as shown in FIG. 7A, the basic data includes data used when generating the next password and the next password, as well as encryption pattern data. Is also included. That is, the rules are defined so that the second to fourth numbers in the basic data are used for generating the next password, and the third to fifth numbers are used for generating the next next password. .

Therefore, the first to fourth numbers of the basic data of the next personal identification number created by the front machine are as shown in FIG. 6 (b), and three places indicated by xxx are generated by random generation means. An arbitrary three-digit number is inserted. Now, assuming that the three-digit number is 987, the first digit in FIG.
~ Generated by the fourth number and random generating means
FIG. 6 (c) shows the basic data of the next password obtained by combining the three-digit number 987 (formed in accordance with a predetermined basic number forming rule).

The basic data shown in FIGS. 6 (a) and 6 (c) are converted by the encryption pattern data when actually delivered to the customer.
Now, the encryption rule represented by the encryption pattern data represented by the seventh number “7” in the basic data is the seventh rule.
As shown in FIG. 7A, the first and sixth, the second and fourth, and the third
When the fifth and fifth numbers are exchanged, the current personal identification number and the next personal identification number actually given to the customer are as shown in FIGS. 7 (b) and (c), respectively.

On the other hand, on the ten-key type lock side, when a password as shown in FIG. 7 (b) is input, the encryption pattern is inversely converted based on the encryption pattern data, that is, a numeral opposite to that of FIG. 7 (a). (Decryption in accordance with the decryption rule opposite to the encryption rule), and return to the same basic data as in FIG. 6 (a). Then, based on the basic data, the next coming data and the next coming data as shown in FIGS. 8 (a) and 8 (b) are respectively created (numbers are formed in accordance with a predetermined number forming rule). ). Therefore, when a password different from the password registered on the numeric keypad lock is input, the input password, the next data created on the numeric keypad lock and the next next data are entered. Data to be compared with
If the third number is equal, the entered password is accepted as a new password, and this is registered in place of the previous password.

As described above, the current PIN is associated not only with the next PIN but also with the next PIN, so if a customer who checks in but checks out without unlocking The association with the next customer's password will also be maintained.

In the above configuration, first, details of the operation of the front machine are described by the CPU in the microcomputer of the controller 18.
Will be described with reference to the flowchart of FIG.

The flowchart starts when the front machine is turned on. In the first step S1, it is determined whether or not there is a key input by operating the ten keys 10a of the input key operation unit 10 from 0 to 9. No judgment with no numeric key input
If so, the process proceeds to step S2, where it is determined whether or not there is a key input by operating the check-in key 10b of the input key operation unit 10. If there is no check-in input and the determination is NO, the process returns to step S1, and thereafter there is either a ten-key input or a check-in input, and the determination in step S1 or S2 is YE
Steps S1 and S2 are repeatedly executed until S is reached.

If there is a numeric key input and the determination in step S1 is YES, the process proceeds to step S3, where data input by operating the numeric keypad 10a is stored in the input room number storage unit 18a in the RAM. Thereafter, the process proceeds to step S4, where the data in the input room number storage unit 18a is output to the display unit 12 to be displayed, the process returns to step S1, and the determination of steps S1 and S2 is repeated again.

If the input of the room number having the predetermined number of digits is completed and the check-in key is input by operating the check-in key 10b, the determination in step S2 becomes YES and the process proceeds to step S5. In step S5, the data in the input room number storage section 18a is compared with the current room number in the personal identification number storage section 18b. Thereafter, the process proceeds to step S6, and as a result of the comparison in step S5, it is determined whether or not the same room number exists. There is no equal room number, and the judgment in step S6
If NO, the process proceeds to step S7, where error processing is performed, and then the process returns to step S1. If there is an equal room number and the determination in step S6 is YES, the process proceeds to step S8.

In step S8, a new password is created based on the password data of the room number stored in the current password storage unit 18b, and this is replaced with the original data of the current password storage unit 18b. To remember. Then, the process proceeds to step S9, where the new data of the room number in the current password storage unit 18b is subjected to cryptographic conversion, and this is stored in the output password storage unit 18c. Then proceed to step S10,
Here, the data in the output password storage unit 18c is output to the printing unit 14, and the printing is performed on the roll paper 14a.

Next, details of the operation of the numeric keypad lock
A description will be given with reference to the flowcharts of FIGS. 10 (a) and 10 (b) showing the work executed by the CPU in the microcomputer of No. 28.

The flowchart starts in response to the turning on of the ten-key lock. In the first step S21, it is determined whether or not there is a key input by operating the ten keys 20a of the input key operation unit 20. If there is no numeric key input and the determination is NO, the process proceeds to step S22, where it is determined whether there is a key input by operating the clear key 20c of the input key operation unit 20, and if there is no key input and the determination is NO, Steps
Returning to S21, thereafter, steps S21 and S22 are repeatedly executed until the determination in step S21 or S22 becomes YES.

If there is a numeric key input and the determination in step S21 is YES, the process proceeds to step S23, where the data input by operating the numeric keypad 20a is stored in the input password storage unit 28a in the RAM. Thereafter, the process proceeds to step S24, where the data in the input personal identification number storage unit 28a is output to the display unit 21 to be displayed. Subsequently, the process proceeds to step S25, where it is determined whether or not the data of the input password storage unit 28a is a specified number, that is, whether or not all of the passwords of a predetermined number of digits have been key-input. Return to step S21 until steps S21, S2
3, S24 and S25 are repeatedly executed. The determination in step S25 is Y
In the case of ES, the process proceeds to step S26.

In step S26, the data in the input personal identification number storage unit 28a is compared with the data in the personal identification number storage unit 28b that the user likes, and in the following step S27, it is determined whether or not the two are equal. If the two are not equal and the determination in step S27 is NO, the process proceeds to step S28, and if the both are equal and the determination in step S27 is YES, the process proceeds to step S41 described below. Steps
In S28, the data in the input personal identification number storage unit 28a is inversely converted into the personal identification number to return to the basic data, and this is stored in the encryption inversely converted personal identification number storage unit 28c, and then the process proceeds to step S29.

In step S29, the encryption reverse conversion password storage unit 2
The data of 8c and the data of the check-in personal identification number storage unit 28d are compared, and in the following step S30, it is determined whether or not both are equal. If both are equal and the determination in step S30 is YES, the process proceeds to step S31, where it is determined whether an unusable flag is set in the check-in password storage unit 28d. If the unusable flag is set in the check-in PIN, the determination in step S31 is YES
Accordingly, the process proceeds to step S32, where after error processing, returns to step S21. On the other hand, if the unusable flag is not set and the determination in step S31 is NO, the process proceeds to step S41 described later.

If the determination in step S30 is NO, that is, if the two compared in step S29 are not equal, the process proceeds to step S33, where the check-in password storage unit 2
On the basis of the data of 8d, a next coming password and a next coming password are created, and these are stored in the next coming password storage unit 28e and the next coming password storage unit 28f.
Then, the process proceeds to step S34.

In step S34, the encryption reverse conversion password storage unit 2
The data of 8c is compared with the data of the password number storage unit 28e to come next, and in a succeeding step S35, it is determined whether or not both are equal. If they are not equal, step S36
Then, the data in the encryption reverse conversion password storage unit 28c is compared with the data in the password storage unit 28f to come next, and it is determined in the next step S37 whether or not both are equal. If the determination in step S37 is NO, the process proceeds to step S32 to perform error processing, and then returns to step S21. If the determination is YES, the process proceeds to step S38. The determination in step S35 above is YE
If S, skip steps S36 and S37 and skip to step S38
Proceed to.

In step S38, the encryption reverse conversion password storage unit 2
The data of 8c is stored in the check-in password storage unit 28d, and in the following step S39, the user's favorite password storage unit 28b
Then, the process proceeds to step S40. In step S40, the unusable flag in the check-in personal identification number storage unit 28d is cleared, and then the process proceeds to step S41.
Here, an unlocking signal is output to the locking / unlocking solenoid 22b of the electric lock 22, and the electric lock 22 is unlocked. In response, the unlocking / unlocking switch 22a is also unlocked.

Subsequently, the process proceeds to step S42, where the data in the input personal identification number storage unit 28a is cleared, and then proceeds to step S43 to clear the display on the display unit 21. Proceeding to step S44, it is determined here whether the lock / unlock switch 22a of the electric lock 22 is in the locked state. The electric lock 22 is locked when the door handle 26 for opening the door is unlocked after unlocking,
At the same time, the locked / unlocked state switch is also in the locked state. Accordingly, when the door is opened after unlocking, the determination in step S44 is YES, and when the door is not opened after unlocking, the determination in step S44 is NO. When the determination in step S44 is YES, the process proceeds to step S57 described later, and when the determination is NO, the process proceeds to step S45.

In step S45, it is determined whether or not there is a ten-key input from ten-key 20a of input key operation unit 20. When there is no numeric key input and the determination is NO, the process proceeds to step S46, where it is determined whether or not there is a key input by the clear key 20c of the input key operation unit 20, and when there is no clear key input and the determination is NO, the process proceeds to step S46. Proceed to S47. In step S47, it is determined whether or not there is a key input by the memory key 20b of the input key operation unit 20.
Return to S44. When the door is not opened after the electric lock 22 is unlocked and no operation is performed on the input key operation unit 20, steps S44 to S47 are repeatedly executed.

Now, when the operation of the numeric keypad 20a of the input key operation unit 20 is performed, the determination in step S45 becomes YES, and the process proceeds to step S48. In step S48, the ten-key input data is stored in the input password storage unit 28a, and in the next step S49, the data in the input password storage unit 28a is output to the display unit 21 to be displayed, and then the process returns to step S44.

When the clear key 20c of the input key operation unit 20 is operated and the determination in step S46 is YES, the process proceeds to step S50, where it is determined whether or not there is key data in the input password storage unit 28a, and the determination is YES. If so, the process returns to step S42, where the data is cleared. When the determination in step S50 is NO, that is, when there is no data in the input personal identification number storage unit 28a, the process proceeds to step S51, where it is determined whether or not there is data in the favorite personal identification number storage unit 28b. If the determination in step S51 is NO, the process returns to step S44, and if the determination is YES, the process proceeds to step S52, where an unusable flag is set in the check-in password storage unit 28d, and then the process returns to step S44.

On the other hand, if the determination in step S47 is YES, that is, if there is a key input by the memory key 20b, the process proceeds to step S53, where it is determined whether the data in the input password storage unit 28a is a specified number. . If there is no specified number of data and the determination is NO, the process proceeds to step S54, where error processing is performed, and then the process returns to step S44. If the determination in step S53 is YES, the process proceeds to step S56, where the data in the input personal identification number storage unit 28a is stored in the personal identification number storage unit 28b.
After returning to step S42, the data in the input password storage unit 28a is cleared.

Door handle 26 to enter the room after unlocking electric lock 22
When the is turned, the lock / unlock switch 22a is locked,
When the determination in step S44 is YES, the process proceeds to step S57,
Here, after clearing the data of the input personal identification number storage unit 28a, the process proceeds to step S58, where the display of the display unit 21 is cleared, and the process returns to step S21 to wait for a subsequent key input by the input key operation unit 20.

It should be noted that as another example of associating the password between the front machine and the ten-key type lock, a ring type or a clock type may be used.

In the ring system, the front machine and the numeric keypad type lock are provided with data groups of the same personal identification number connected endlessly in a ring shape, and both data groups have the same start. Then, the front machine sets the data of the starting point as the currently used password, and forms the next and next implicit passwords by using one randomly selected from, for example, two data following this data. By doing so, the ten-key type lock side can know that the two data after the start point are the next data or the next next data. Thereafter, by performing the same operation with the current data as a start point, even if the ring is first ordered and then the second order is entered, a password having the same arrangement as the first order is not formed. Of course, the password may be formed using the three data after the start point.

In the clock system, the front machine and the ten-key type lock are provided with a counting or time counting means which has the same contents and counts up at the same period, thereby achieving a period.

For example, four digits of a seven-digit password are used as clock data,
If the current clock data is 1234, the basic data of the currently usable personal identification number is 11th.
As shown in FIG. 11A, if xxx is 567 (random numeral string, 7 is the encryption pattern data), the basic data of the personal identification number is as shown in FIG. 11B. . This basic data is as shown in FIG. 11C when the encryption pattern is converted, and this is the personal identification number given to the customer.

The basic data three days later is as shown in FIG. 11 (d), where the rightmost three digits are 987.
This is as shown in FIG. 11 (e), which is given to the customer.

The ten-key type lock side can know the clock data portion of the password to come next from the current clock data and determine whether or not the password is the check-in password.

In the above-described embodiment, since the following data is entered according to the registered number as next, next next, next next, etc., it is necessary to inform the customer of the password generated at the front machine, Can be registered as a new PIN, and the registration does not require the maid to accompany the customer and perform a reset for registration. Also, even if the user forgets the password, the front machine can generate the password again to unlock and register the new number. Furthermore, even if the checked-in customer cancels and returns, the front machine and the ten-key lock are not out of synchronization.

Furthermore, the user can easily register his or her favorite number that is easy to remember in the unlocked state of the electric lock as a personal identification number, or can register it instead of a check-in personal identification number. Or reliability is enhanced.

(Effect)

As described above, according to the ten-key type electric lock device of the present invention, the input key operation means having the ten-key for inputting the personal identification number whose basic number is changed according to the predetermined encryption rule, and the registered personal identification number are stored. Password number storage means, the basic number obtained by changing a password input by a numeric keypad of the input key operation means in accordance with a decryption rule opposite to the encryption rule, and stored in the password number storage means. First comparison means for comparing the registered passwords with each other and generating an unlock signal when the passwords coincide with each other; and the basic number obtained by changing the password inputted by the numeric keypad in accordance with the decryption rule. A number forming unit that forms a number in accordance with a predetermined encryption forming rule using a registered password stored in the password storing unit based on When the two do not match as a result of the comparison of the stages, the number formed by the number forming means and the basic number obtained by changing the password input by the ten-key input of the input key operating means in accordance with the decryption rule are used. Compare and generate an unlock signal when they match.
And an electric lock which is driven and operated by the unlock signal from the first and second comparing means, and when the result of the comparison by the second comparing means is identical, A configuration in which the basic number obtained by changing the password input by the ten keys of the input key operating means in accordance with the decryption rule is stored in the password storage means as a new registered password instead of the previously registered password. And

For this reason, compared to a case where an intermediate medium for storing a personal identification number such as a magnetic card is used for the operation of inputting the personal identification number when the electric lock is unlocked, the personal identification number or the changed The likelihood of the PIN being known is reduced, thus increasing the confidentiality of the PIN and preventing the situation where the electric lock is unlocked by a third party other than the person concerned, such as a room user. can do.

In addition, the change from the personal identification number to the basic number in accordance with the decryption rule opposite to the encryption rule for forming the basic number to be compared with the number formed by the number formation means in the second comparison means, It is performed inside the numeric keypad type electric lock device, and the password is output to the outside of the numeric keypad type electric lock device in a recognizable form with the basic number changed according to the decryption rule opposite to the above encryption rule. Since there is no password, you must not know the user of the current room who needs to know only the current PIN, or even the current PIN, which is the key to know the changed PIN when changing the PIN It can be reliably prevented from being known to a third party.

According to the ten-key type electric lock system of the present invention,
A basic number is formed in accordance with a predetermined basic number forming rule according to input of predetermined information, and a password is formed by changing the basic number in accordance with a predetermined encryption rule,
A password generating device for outputting the password in a recognizable form, and the number forming means, based on the basic number obtained by changing the password input by the numeric keypad in accordance with the decryption rule, The ten-key type electric lock device that forms a number in accordance with the same basic number forming rule as the number generating device, and the password generating device preferably includes a room number and an electric lock of the room of the number. Input operation means for inputting a command for forming a password for unlocking, a password storage means for storing information relating to a room number and a password for unlocking an electric lock of the room of the number; Using the information on the room number stored in the password storage means in response to the room number and the command input by the input operation means, A password forming means for forming the basic number in accordance with rules and changing the basic number in accordance with the encryption rule to form a new password, and in a form capable of recognizing the password formed by the password forming means. Output means for outputting the password, and the information relating to the password formed by the password forming means is stored in place of the previous information in the password storage means.

For this reason, in addition to the effect of the ten-key type electric lock device of the present invention described above, the personal identification number generated by the personal identification number generation device and the number formed by the ten-key type electric lock device can be associated with each other. By informing the customer of the generated password and inputting it to the numeric keypad type electric lock device, unlocking and registration of a new password can be easily performed. The same thing happens when you forget your PIN,
By providing a personal identification number by a personal identification number generation device and notifying the customer of the personal identification number, it is possible to easily cope with the personal identification number.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of the present invention, FIG. 2 is an external perspective view of a front machine as a password generating device, and FIG. 3 is a partially exploded perspective view of a ten-key lock as a ten-key electric lock device. 4 is a block diagram showing an electric circuit of the front machine shown in FIG. 2, FIG. 5 is a block diagram showing an electric circuit of the ten-key type lock shown in FIG. 3, and FIGS. FIG. 9 is an explanatory diagram for explaining the principle of one method of synchronizing with the type lock, FIG. 9 is a flowchart showing the operation of the CPU in the front machine, and FIG. FIG. 11 is an explanatory diagram for explaining the principle of another system for achieving synchronization. A: PIN code generator, A ₁ ... Input operation means, A ₂ ...
PIN storage unit, A ₃ ...... PIN forming means, A ₄ ...... output unit, B ...... numeric keypad electric lock device, B ₁ ...... input key operation unit, B ₂ ...... PIN storage unit, B ₃ ... First comparing means, B ₄ ... Number forming means, B ₅ ... Second comparing means, B ₆
……Electric lock.

Claims (3)

(57) [Claims] 1. An input key operating means having a numeric keypad for inputting a password whose basic number has been changed in accordance with a predetermined encryption rule; a password storing means for storing a registered password; The basic number obtained by changing the password input by the numeric keypad in accordance with the decryption rule opposite to the encryption rule is compared with the registered password stored in the password storage means. First comparing means for generating an unlocking signal when the password is locked, and the password stored in the password storing means based on the basic number obtained by changing the password input by the numeric keypad in accordance with the decryption rule. Using your registered PIN,
A number forming means for forming a number in accordance with a predetermined number forming rule; and a result of the comparison by the first comparing means. Comparing the input personal identification number with the basic number changed according to the decryption rule,
A second comparing means for generating an unlocking signal when they match, and an electric lock driven and operated by the unlocking signals from the first and second comparing means; As a result of the comparison by the comparing means, when both match, the basic number obtained by changing the password input by the numeric keypad of the input key operating means in accordance with the decryption rule is used as a new registered password, A ten-key type electric lock device, wherein the password is stored in the password storage means instead of the registered password. 2. A method for forming a basic number in accordance with a predetermined basic number forming rule in response to input of predetermined information, and forming a personal identification number by changing the basic number in accordance with a predetermined encryption rule. A password generating device that outputs a password in a recognizable form, input key operating means having a numeric keypad for inputting a password, a password storing means for storing a registered password, and a numeric keypad of the input key operating means. Compare the basic number obtained by changing the input security code according to the decryption rule opposite to the encryption rule with the registered security code stored in the security code storage means, and when both match. A first comparison unit for generating an unlock signal; and the password generation unit based on the basic number obtained by changing the password input by the numeric keypad in accordance with the decryption rule. A number forming means for forming a number in accordance with the same basic number forming rule as the raw device, and a result of the comparison by the first comparing means, when the two numbers do not match, the number formed by the number forming means, A second comparing means for comparing the input personal identification number with the basic number changed in accordance with the decryption rule, and generating an unlock signal when the two coincide with each other; An electronic lock that is driven and operated by an unlocking signal from the comparing means, and when the result of the comparison by the second comparing means shows that they match, the password input by the ten keys of the input key operating means Is changed in accordance with the decryption rule, and the basic number is stored in the password storing means as a new registered password in the password storing means in place of the previous registered password. Numeric keypad electric lock system, characterized in that it comprises a lock device. 3. The personal identification number generating device, comprising: input operation means for inputting a room number and a command for forming a personal identification number for unlocking an electric lock of the room of the room number; A password storage means for storing information relating to a password for unlocking the electric lock in the room; and a password stored in the password storage means in accordance with the room number and the command input by the input operation means. Secret number forming means for forming the basic number in accordance with the basic number forming rule using information about the room number, and changing the basic number in accordance with the encryption rule to form a new secret number; Output means for recognizing the password formed by the password means in a recognizable form, wherein information relating to the password formed by the password forming means is stored in the password storage means. Numeric keypad electric lock system according to claim 2 wherein the stored instead previous information.