JP3129490B2 - Registration code search device for electric locks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for searching for a personal identification code for an electric lock (hereinafter simply referred to as a "searching device"). The present invention relates to a search device that can easily search for the storage address of a registered code in an electric lock that uses a code recorded on a magnetic card as a personal identification code.

[0002]

2. Description of the Related Art As is well known, an electric lock is electrically compared with an input personal identification code and a personal identification code registered in advance, and is unlocked only when the two coincide with each other or have a certain relation. A signal is supplied to the electric lock unit, and the signal is applied and unlocked.

[0003] The password input to the electric lock for application and unlocking is performed by manual input using a switch group called a so-called numeric keypad, a perforated card, a so-called magnet card in which a thin permanent magnet is embedded, or a magnetic card. An input method is to use a magnetic card or the like in which a personal identification code is magnetically recorded on a stripe as a special key card, pre-record the personal identification code on this, and read it into a card reader when applying and unlocking. is there.

In recent years, however, one person tends to hold a large number of magnetic cards. In this case, it is not only troublesome to carry a key card only for locking and unlocking, but also there are many opportunities for loss. There is a disadvantage that the safety of the electric lock is impaired.

Therefore, for example, Japanese Utility Model Laid-Open Publication No. 62-169853.
JP, JP-A-62-296073, JP-A-63
-55281 or JP-A-2-85483, instead of a dedicated key card,
For example, using a magnetic card for a bank cash machine,
There has been proposed an electric lock in which the recorded contents of the magnetic card are registered in advance in the electric lock as a personal identification code, and thereafter the magnetic card is read by a card reader so that the magnetic card can also be used as a key card.

[0006] In such an electric lock, when registering the stored contents of the magnetic card as a personal identification code in the electric lock, it is necessary to specify and store the storage address of the memory for each magnetic card. This is because, in general, since the stored contents of the magnetic card are registered without specifying them, when the magnetic card is lost, there is no means for deleting the personal identification code corresponding to the magnetic card. On the other hand, if the storage address of the memory is recorded for each magnetic card, if the security code corresponding to the magnetic card is deleted due to loss of the magnetic card, the stored contents of the memory at the address corresponding to the magnetic card are simply deleted. What is necessary is just to delete.

As described above, in an electric lock using a magnetic card that has already been issued as a key card, a table or the like is created in which the magnetic card is associated with a storage address of a memory for registering the stored contents. Although it is necessary to prepare the table, it is conceivable that even if this table or the like is created, it is lost or the correspondence table is not created due to negligence of the administrator.

[0008] Therefore, a security code search device capable of verifying at which address in the memory the security code of one magnetic card is stored is required. In this case, the password search device means a device capable of displaying the storage address of the password read by the magnetic card reader.

[0009] Even if a security code is input without a correspondence table, a correspondence table can be created later, and if a magnetic card corresponding to the security code to be deleted is present, it is of course possible. The storage address of the security code is easily known, and when the security code is to be erased due to loss of the magnetic card, the storage address of the remaining magnetic card is verified by a so-called erasing method. This is because the storage address of the security code of the lost magnetic card can be specified, so that the security code can be deleted.

[0010]

However, the above-mentioned retrieval device requires a display device for displaying retrieval results in principle. Therefore, a space for mounting the display device, which is considerably large, must be secured in the electric lock unit, which not only increases the size of the electric lock unit, but also complicates its structure. Therefore, there is a disadvantage that it becomes expensive.

The present invention provides an electric lock password search apparatus having a simple structure capable of displaying a search result by using a display lamp or the like conventionally provided in an electric lock unit, thereby solving the above-mentioned disadvantages. The purpose is to do.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the invention according to claim 1 comprises a memory storing a plurality of personal identification codes, a magnetic card reader for reading a personal identification code of a magnetic card, and a magnetic card reader. PIN code storage address search means for verifying the storage position in the memory of the PIN code read by the card reader, and n of the storage address
(N: a positive integer equal to or greater than 1) a decoder for testing the contents of 0 to 9 digits for each digit of a decimal number;
There is provided a display means for displaying the storage address of the personal identification code taken out as a 0-base number at intervals of time for each digit by the number of intermittent operations of the display.

[0013]

The search device constructed as described above first reads the personal identification code recorded on the magnetic card by the magnetic card reader 1 as shown in FIG.

Then, the existence of the secret code read by the card reader is confirmed by the secret code storage address search means 2 in the memory 3 storing a plurality of secret codes. Since this function is provided in all ordinary electric locks, the function is used.

Then, in the security code storage address search means 2, the storage address of the memory 3 storing the security code identical to the security code read by the card reader 1 is taken out and supplied to the decoder 4. .

In the decoder 4, the storage address of the personal identification code, which is usually represented by a binary number, is converted into n (n: a positive integer of 1 or more) decimal numbers, and each of the digits 0 to 9 is converted. Is temporarily stored in, for example, a register (not shown) for each digit.

Then, in the display means 5, the storage addresses converted into decimal numbers are stored at intervals of time for each digit,
Indication is based on the number of times the display is interrupted.

Usually, an LED (light emitting diode) or the like for displaying the operating state and the unlocked state of the electric lock is provided on the outer surface of the electric lock unit. Displays the storage address required by.

For example, if the electric lock unit has two indicator lights, red and green, and the storage address to be displayed is 52, the green indicator light flashes five times first and then the red indicator light twice. Flash. At this time, a sounding device such as a buzzer may be sounded together with the blinking of the indicator light. Further, in addition to the display by the display lamp, the display may be performed only by a sounding device such as the buzzer.

The stored address of the security code verified as described above is turned, for example, by turning the knob of the rotary switch provided on the indoor side of the electric lock unit in correspondence with the tenth digit and the first digit. By performing a predetermined operation in accordance with the scales of 50 and 2, respectively, the password stored at the address 52 is deleted. However, this erasing operation is not the gist of the present invention, so that a more detailed description will be omitted.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. Each of the components of the device of the present invention can be configured by a substantial circuit, but it is preferable to use the functions of the microcomputer as described below.

In FIG. 2, reference numeral 6 denotes an electric lock unit, and a magnetic card reader (not shown) is built in the escation 7 mounted on the outer surface of the door of the electric lock unit 6. A vertically long card slit 9 into which the side edge of the magnetic card 8 is inserted is opened on the surface of the escation 7, and the magnetic card 8 is inserted into the card slit 9 as shown by an arrow, and is downward. By sliding, the personal identification code recorded on the magnetic stripe 11 of the magnetic card 8 can be read. Since such a magnetic card reader is known, further detailed description will be omitted.

In the normal operation mode of the electric lock, following the reading of the password of the magnetic card 8 described above,
It is automatically checked whether or not the password is registered. If the password is registered, for example, the green first LED 12 attached to the escation 7 blinks, and the handle 13 Press down to unlock the electric lock,
Or it is locked.

On the other hand, when the read secret code is not registered in the memory in advance, for example, the red second LED 14 blinks.
The electric lock cannot be locked or unlocked because it stops moving or runs idle.

The operation of such an electric lock is well known, and the configuration and the like for it are also known, so that a more detailed description will be omitted.

On the other hand, an electric lock provided with the search device according to the present invention is configured as shown in FIG. That is, in FIG. 3, reference numeral 15 denotes a microcomputer. The microcomputer 15 mainly includes a microprocessor (central processing unit) 16, a memory (storage device) 3, and an interface (input / output signal processing circuit) 17. These components are interconnected by an address bus 18, a data bus 19, and a control bus 21.

The interface 17 includes an operation mode setting device 23 in addition to the magnetic card reader 22 described above.
Security code storage address setting device 24, electric lock drive circuit 2
5. The status input device 26 of the electric lock and the display 27 are connected. Hereinafter, each device will be sequentially described.

The operation mode setting device 23 is a device for switching and setting the electric lock to a normal operation mode, a security code input mode, a security code deletion mode, a security code search mode, etc., which is the object of the present invention. More specifically, the electronic lock includes a changeover switch. By switching the changeover switch, different programs of the microcomputers are started, and the electric locks are set to the corresponding operation modes. In addition, since each operation mode is practically used for ordinary electric locks and is well-known, further detailed description is omitted. In some electric locks,
Some have an emergency operation mode setting button, and when this button is pressed, the electric lock is unlocked unconditionally.

When the electronic lock is set to a password input mode or a password deletion mode, a password storage device (hereinafter referred to as an address setting device) 24 stores a password for registration or a password for deletion. The address setting device 24 in the illustrated embodiment includes a rotary switch at the tenth digit of the decimal number and a rotary switch at the first digit. Therefore, the maximum value of the storage address that can be set by this address setting device is 99.

These rotary switches can be operated by opening the escation on the indoor side of the electric lock unit (not shown), and the scale of the rotary switch at the tenth digit is set to 5, for example. A storage address 52 is set by matching the first digit with 2.

The storage address of the personal identification code set to 52 in decimal number is usually converted into a binary number by an encoder, and the storage address in the memory 3 is automatically set by a microcomputer.

As the address setting device, a dip switch or other electric switch can be used in addition to the rotary switch. If the electric switch is used as the address setting device, the electric lock unit can be made compact.

Since the electric lock driving circuit 25 is not different from that of a normal electric lock, it will be briefly described that it includes an electromagnetic actuator, a power supply and a switch.

The electric lock status input device 26 informs the microcomputer of, for example, whether the lock mechanism of the electric lock is locked or unlocked, or whether the door is open or closed. Input and set data for controlling the electric lock.
It consists of an unlocking switch which is switched by unlocking, an opening and closing door switch which is switched when the door is opened and closed, and the like. Since this state input device is also a well-known device in a conventional electric lock, further detailed description is omitted.

Further, the display 27 in the embodiment shown in FIG.
Is the first LED 12 that emits green light as described above.
(See FIG. 2) and a second LED 14 that emits red light, and further includes a buzzer as a sounder.

In the electric lock constructed as described above, the search device according to the present invention switches the changeover switch of the operation mode setting device 23 to the secret code search mode so that the microcomputer performs the processing shown in the flowchart of FIG. The electric lock is switched so as to be controlled in accordance with the law, and the electric lock is activated as an address search device. In the figure, P1 to P32
Indicates each step of the flowchart. Next, the configuration and operation of the address search device will be described with reference to FIG.

That is, by switching the changeover switch of the operation mode setting device 23 to the secret code search mode, the program is started in step P1 of FIG. 4, and the first and second LEDs 12, 1 in step P2.
4 flashes to indicate that the electric lock has been switched to the password search mode, in other words, that the address search device has been activated.

Next, in steps P3 and P4, the magnetic card 8 (see FIG. 2) is inserted into the card slit 9 within a preset processing time of, for example, several seconds, and a predetermined reading operation is performed. Test whether or not

If the magnetic card 8 is not inserted into the card slit 9 within the processing time, the program immediately jumps to Step P32 and the program ends.

If the magnetic card 8 is inserted within the processing time, in step P5, the first and second LEDs 12, 1
4 turns off, and the personal identification code recorded on the magnetic card 8 is read in step P6.

At this time, in step P7, it is verified whether the password has been read correctly or there is an error. If there is an error, the red second LED 14 flashes in step P8. To indicate that there is an error in reading, and then the program jumps to step P32 and the program ends.

If there is no error in reading, the program shifts to step P9 to set the count content c of a counter (not shown) to 0.

Next, in step P10, the address R of the memory 3 in which the personal identification code is stored is set as the head address (for example, 1).

In step P11, the personal identification code stored at the storage address R = 1 is compared with the personal identification code of the magnetic card read as described above. In step P12, it is determined whether or not the count content c does not exceed 99 for comparison with the registered password.

If not, the content of the count is set to c + 1 in step P13, the storage address R of the registered personal identification code is designated as R + 1 and the next address in step P14, and the process returns to step P11 to newly designate the address. It is checked whether or not the registered password at the storage address matches the password read from the magnetic card as described above.

Thereafter, this logical operation is repeated to verify the contents stored in the storage address in the memory from the end.

In this process, if the data still does not match even if the count content c of the counter exceeds 99, the process jumps from step P12 to step P15,
After the red second LED 14 flashes and displays an error,
The program jumps to step P32 and ends.

On the other hand, in the process of verifying the matching of the data, when the password read from the magnetic card and the registered password match, the process jumps from step P11 to step P16, where the matched password is stored. 2-digit decimal number a + b × as storage address of memory
The digit contents b of the tenth digit of 10 (a, b: positive integers from 0 to 9) are calculated.

Then, in step P17, the digit contents a of the first digit are calculated. These digit contents a and b are temporarily stored in the counter.

Subsequently, in step P18, for example, the red second LED 14 is turned on, and the storage address 1
After displaying that the display of the digit of the 0th place is to be started, step P1
In step 9, it is determined whether or not b stored in the counter is 0. If not 0, in step P20, for example, the first green LED is turned on for a predetermined time, for example, 0.5 seconds, and Subsequently, in step P21, the buzzer sounds once.

Then, after the first LED goes out in step P22, the 10th digit content b in the counter is counted down by 1 in step P23. Thereafter, the flow returns to step P19.

By repeating this operation, the blinking of the first LED and the buzzer are repeated until b in the counter becomes 0, that is, b times. Therefore, the number b of the tenth digit of the storage address of the security code to be obtained can be known by counting the number of times that the LED as the indicator is turned on and the number of times that the buzzer sounds.

When b becomes 0 in step P19, the process jumps to step P24, in which the red second LED 14 is turned off and a display indicating that the display of the tenth digit of the storage address has been completed is completed. The first LED 12 is turned on to indicate that the first digit of the storage address is to be displayed.

Thereafter, by the logical operation of steps P26 to P30, in the same manner as described above, the number of the first place of the storage address, that is, the red LED 14 flashes a times and the buzzer also sounds a times Sounds. In this way, by counting the number of times the second LED blinks and the number of times the buzzer sounds, the number a of the first place in the storage address can be known.

When the display of the number a of the first place in the storage address is completed, the green first LED goes out in step P31 to notify that the entire display has been completed, and the program ends in step P32.

The present invention is not limited to the above-described embodiment, but can be implemented in various modifications. For example, in the illustrated embodiment, two rotary switches or dip switches constituting the address setting device 24 are provided for two digits, that is, two switches can be set. Therefore, only a maximum of 99 storage addresses can be set. The number of storage addresses that can be set is theoretically unlimited.

In the illustrated embodiment, the number b of the tenth place of the storage address is displayed first, but it is needless to say that the number b may be displayed from the first digit.

Further, in the above embodiment, the contents of the debit are 0.
In the case of, the display does not display anything, but this may be displayed ten times when it is 0.

[0059]

As is apparent from the above description, the present invention converts a storage address of a security code corresponding to a security code read by a magnetic card reader into a decimal number, and converts each of the digits of the decimal number into a decimal number. Because the contents of the digit are displayed at intervals of each digit and in the form of the number of intermittent display of the display originally attached to the electric lock,
Even if a display device in a general sense is not used, an intended effect of displaying a storage address of a required personal identification code is achieved.

In addition, since a display device in a general sense is not required, a secondary effect that the electric lock unit is made compact, the structure is simplified, and the cost is reduced can be expected.

Furthermore, since humans naturally have the property of counting intermittent displays unconsciously, there are various effects such as the display of the device of the present invention being excellent in ergonomics.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a search device according to an embodiment of the present invention.

FIG. 2 is an external perspective view showing an example of an electric lock unit.

FIG. 3 is a block diagram showing a configuration of an electric lock equipped with a search device according to the present invention.

FIG. 4 is a flowchart of a microcomputer in the search device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Card reader 2 PIN code storage address search means 3 Memory 4 Decoder 5 Display means

Continuation of the front page (56) References JP-A-3-224977 (JP, A) JP-A-60-26784 (JP, A) JP-A-63-292322 (JP, A) JP-A-59-53972 (JP , A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 49/00-49/04 E05B 41/00 G06K 17/00 G06F 17/30

Claims (3)

(57) [Claims] 1. A memory storing a plurality of personal identification codes,
A magnetic card reader for reading a security code of a magnetic card, a security code storage address search means for verifying a storage position of a security code read by the magnetic card reader in a memory, and n (n: 1 or more) of the storage address A positive integer), a decoder for examining the contents of the 0 to 9 digits for each digit of the decimal number, and a storage address of the PIN code extracted as an n-digit decimal number, and a time-sequential interval for each digit. And a display means for displaying the number according to the number of intermittent operations of the display device. 2. The apparatus according to claim 1, wherein the display is a light emitting element such as a light emitting diode. 3. The registration code search device for an electric lock according to claim 1, wherein the display is a sounding device such as a buzzer.