JP2568754Y2 - PIN code device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal identification number device used for unlocking and locking an electric lock.

[0002]

2. Description of the Related Art A door of an entrance incorporating an electric lock is operated by an unlocking operation from an indoor master unit in response to a call signal input from an entrance slave unit on the entrance side, or an externally provided personal identification number device. The user inputs a preset password from the server or unlocks the terminal using a key in some cases. Generally, it is determined whether the entered PIN matches the registered PIN.
The determination is made by the CPU of the master unit.

Conventionally, as shown in FIG. 5, this type of personal identification number device has a number display section 1 composed of LEDs or liquid crystals.
A transparent switch unit 20 is provided on the front of the unit 0. The number display unit 10 and the transparent switch unit 20 are connected to the CPU 30, respectively. To input a password for unlocking, first, a start switch (vertical line in the figure) 20 _S of the transparent switch 20 is pressed. Thus, the start switch indicated by S of the number display unit 10 corresponding to the start switch unit 20 _S is activated, and the number display unit 10 corresponds to the transparent switch unit 20 from 0 to 9. Is displayed at random. People to unlock, from the numbers that are displayed in this random, last in the personal identification number input by pressing the end switch (in the figure, the horizontal line) 20 _e sequentially enter the normal four-digit personal identification number is completed.

[0004]

By the way, in the above-described conventional personal identification number device, the number display unit 10 randomly displays a number because the same number is always displayed at the same position when the transparent switch at a specific location is kept. This is to avoid the risk that the stain on the unit 20 is conspicuous and the password is decrypted by others.

However, every time the lock is unlocked, the user must look at the randomly displayed number and search for a number corresponding to the password, and the arrangement of the numbers is randomly displayed in the same state as when first used. It was inconvenient because I had to find it from the numbers. Naturally, the randomly displayed numbers must be checked every time, and there is a drawback that a blind person cannot use them. For the latter difficulty, when the specific key is operated twice, the display can be switched to the alignment display. However, when the display is switched to the alignment display, the same difficulty as the former occurs.

[0006]

[Purpose] The present invention has been made to solve the above-mentioned conventional problems, while avoiding the danger of decrypting a password.
It is an object of the present invention to provide a personal identification number device with improved operability.

[0007]

Means for Solving the Problems In order to achieve the above-mentioned object, the security code device of the present invention comprises 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
A number display section for displaying a plurality of numbers, a transparent switch section provided on the front of the number display section and operated by an operator, and the number display section and the transparent switch section respectively connected, and the transparent switch operated first. And a control circuit having a transmission circuit for transmitting the data of the number input from the transparent switch unit, while sequentially arranging the numbers on the number display unit in the order of 1 to 0 starting from the position corresponding to the unit. ,
On the front surface of the transparent switch portion, a lattice frame for partitioning the position of each key is attached.

[0008]

In this password number device, numbers are sequentially arranged on the number display section from the position corresponding to the operated transparent switch section, and the number data input from the transparent switch section is transmitted to the master unit to be preset. Since the password is compared with the password, the password can be input using the numeric keypad arranged from any starting point, and there is no danger of the password being decoded from the dirt of the specific number, and the arrangement of the numbers can be understood. Operability is improved easily.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a personal identification number device according to the present invention; The door of the entrance incorporating the electric lock is set in advance by an unlocking operation from the indoor master unit in response to a calling signal input from the entrance slave unit on the entrance side, or set in advance from an external PIN device. Enter your PIN or unlock using a key in some cases. To check whether the entered PIN matches the registered PIN,
The determination is made by the parent device via the CPU.

As shown in FIG. 1, in the security number device of the present invention, a transparent switch matrix 2 is provided as a transparent switch unit on the front surface of a number display unit 1 composed of an LED or a liquid crystal. Each key and the number display section 1 have a one-to-one correspondence. On the front surface of the transparent switch matrix 2, a lattice frame 21 for partitioning the position of each key of the transparent switch matrix 2 is attached, and the number display section 1 and the transparent switch matrix 2 are connected to a C as a control circuit.
Each is connected to PU3.

As shown in FIG. 4, the CPU 3 includes a number display section 1, a transparent switch matrix 2, a piezoelectric buzzer 4, a data input circuit 5, a data output circuit 6, a reset signal generation circuit 7, and a clock signal generation circuit 8. Each is connected. To input a password for unlocking, first, an arbitrary key (circle) of the transparent switch matrix 2 is pressed. As shown in FIG. 3, the number display unit 1 corresponding to the pressed key
, And the numbers are sequentially displayed from the upper left to the lower right from the number 1 to 2, 3,..., 9, 0. Column a is the second row from the top of the number display section 1 and the left end is the starting point 1. Column b is the fourth row from the top and the second from the left is the starting point 1. From any of these first pressed keys, According to the ten keys displayed in sequence, a predetermined password is input. Each time a number is pressed, the number of lamps 2L lit in a rectangular frame provided below the transparent switch matrix 2 increases, and a confirmation sound is emitted by the piezoelectric buzzer 4 (FIG. 4). Finally, the transparent switch matrix 2 corresponding to the unlock switch 1b is pressed. When the password is correctly input, the electric lock (not shown) is unlocked, and the clock signal generation circuit 8
Works, the unlock switch 1b flashes for a set time, and the lamp 2L lit below the transparent switch matrix 2 turns off sequentially. At the time of locking, the transparent switch matrix 2 corresponding to the locking switch 1a blinks.

Normally, the CPU 3 of the personal identification number device of the present invention scans the transparent switch matrix 2, and as shown in FIG. 2, an arbitrary key of the transparent switch matrix 2 is pressed (F _{1 in} FIG. 2). Controlled by the built-in software, a signal is sent to the number display unit 1 so that numbers are sequentially arranged from 1 to 0 starting from an arbitrary key pressed first as described above (F in FIG. 2). _2), and stores the number data of the transparent switch matrix 2 corresponding to the display (F ₃ in FIG. 2). In the number display section 1, numbers are sequentially arranged from 1 to 0 starting from an arbitrary key pressed first, and a password is input using these numbers (F in FIG. 2).
₄ ). The CPU 3 operates the operated transparent switch matrix 2
Check the number data (F ₅ in FIG. 2), sends a confirmation sound generating signal (FIG. 2F _6), a piezoelectric buzzer 4 sounding (Figure 2
Of F _7). Then, the data of the pressed numbers via the data output circuit 6 is sent to the indoor base unit (F ₈ in FIG. 2).
Normally, after transmitting the four-digit password, the indoor master unit confirms the data (F _{9 in} FIG. 2), and the result of the result is sent from the indoor master unit via the data input circuit 5 ( _{10 in} FIG. 2F). When it is confirmed that the password has been correctly entered, the electric lock at the entrance door is unlocked. In the case of an erroneous input, the reset signal generating circuit 7 is activated and input again.

Since the numbers are sequentially arranged from an arbitrary start position, that is, a position corresponding to the operated transparent switch section 2, the number input operation is performed more smoothly than those arranged at random. In addition, since the specific position of the transparent switch matrix 2 is not intensively pressed, the danger of others being able to decode the personal identification number due to dirt is avoided. Further, since the surface of the transparent switch matrix 2 is partitioned by the lattice frame 21, it is suitable for use because the arrangement of the numbers can be recognized even by a blind person by confirming the pressed position first.

In the above-described embodiment, the description has been given of the front-end handset incorporating the electric lock. However, the present invention is also suitable for other personal identification number devices.

[0015]

[Effect of the Invention] As is clear from the above embodiment, according to the password number device of the present invention, a plurality of numbers consisting of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0 are provided. Is controlled so that the numbers are sequentially arranged in the order of 1 to 0 from the position corresponding to the transparent switch part operated first by the operator with his / her own intention. There is no danger of deciphering the PIN from dirt, and a grid frame that separates the position of each key is attached to the front of the transparent switch so that people with vision can understand the arrangement of the numbers, so use it. It is preferable, and the arrangement of the numbers is easy to understand, and the operability is improved.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an embodiment of a personal identification number device of the present invention.

FIG. 2 is a flowchart of a control circuit of the personal identification number device of the present invention.

FIG. 3 is an explanatory diagram of the operation of the personal identification number device of the present invention.

FIG. 4 is a block diagram of a personal identification number device.

FIG. 5 is a diagram illustrating a conventional personal identification number device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Number display part 2 ... Transparent switch part 21 ... Lattice frame 3 ... Control circuit 4 ... Piezoelectric buzzer 5 ... Data input circuit 6 ... Data output circuit 7 ... Reset signal generation circuit 8 ... Clock signal generation circuit

Claims (1)

(57) [Scope of request for utility model registration] 1. A number display unit (1) for displaying a plurality of numbers consisting of 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and 0, and an operation provided on a front surface of the number display unit. A transparent switch section (2) operated by a user,
Each of the number display unit and the transparent switch unit is connected, and the numbers 1 to 0 are displayed on the number display unit starting from a position corresponding to the transparent switch unit operated first .
A control circuit (3) having a transmission circuit for transmitting the data of the number input from the transparent switch unit, the control circuit being arranged in sequence in order, and the position of each key on the front surface of the transparent switch unit. Finish
A personal identification number device having a grid frame (21) for cutting .