JP2000073632A - Digital display type dial electronic lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily set or revise a password letter or the like by setting the password letter or number through a microcomputer and collating it with an electric signal outputted at a relative position of a rotary dial to unlock a lock. SOLUTION: A dial 2 of a digital display type dial electronic lock is rotated to output two series of signals in accordance with a relative positional change, and whether it is normal rotation or reverse rotation is discriminated. These two series of signals are outputted in accordance with the relative positional change when dialing. Whether the signal is an addition or a subtraction is discriminated and further, a positional change is judged. The output signal is operated by a microcomputer and the result is indicated on a digital display 4 and stored in an unvolatile memory 12. The password letter, the number of digits, or the input method can be easily revised. The figures are easy to see because of the display indication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital display type electronic lock which rotates a dial and performs locking and unlocking using an electric signal generated at that time.

[0002]

2. Description of the Related Art Locks whose numbers are adjusted by rotating a dial have long been used mainly for safes. Its mechanism and structure are as follows. A mandrel fixedly connected to the center of the dial is used as a rotation axis, several disc-shaped plates are cut out, and only one of them is fixed and attached. It is not fixed, but can move when a certain force or more is applied. Each disk-shaped plate is provided with a projection such as a wart, and the projection is designed so that the next disk can be rotated. The fixed first disk rotates, and the protrusion on the disk hooks the next disk, and the next disk starts to rotate together.

In the case of a dial lock using three disks, the third disk cannot be rotated unless the disk is rotated three times. The notch of the third disk is moved to a predetermined position, and the disk is stopped by rotating in the reverse direction to return the protrusion.
This operation is also performed on the second disk, and the notches are aligned at the same position. By aligning the notches of the first disk fixed last, the movable plate can slide into the three notches, and the lock can be unlocked.

In the above structure, the unlock operation of the lock is performed by turning the lock to the right twice, setting the first number, then turning the lock to the left once, and then setting the second number. Set and finally reverse to the right to match the third number. If the three-digit number set by this operation matches the password set in advance, the lock is unlocked. Once the PIN is set,
It cannot be easily changed by the user, and of course, the lock cannot be unlocked unless this password is stored.

[0005]

In the conventional lock, as described above, the personal identification number is set by the disk having the notch attached to the rotating shaft and the projection arranged on the disk, so that the lock can be easily changed. Cannot do it. Also, the number of digits set for the personal identification number cannot be easily changed. Cannot set multiple passwords. Cannot change the password setting procedure. The scale on the dial is hard to read and the password is difficult to match. There are problems such as.

The present invention has been proposed in view of the above-mentioned circumstances, and a method of responding to a user's request is easily set by a microcomputer program using an electronic signal to set a password or a number, and the relative position of the rotary dial is determined. It is an object of the present invention to provide a digital display type electronic lock that unlocks by collating with an electric signal output in (1).

[0007]

That is, a digital display type electronic lock according to the present invention comprises a dial board, a printed circuit board for operation, and a solenoid, and the dial board is rotated in accordance with a relative position by rotating the dial. A rotary dial switch for generating two series of electric signals and a digital display unit for displaying the relative position of the dial are provided.
), A non-volatile memory for storing a password or a number (hereinafter referred to as “character (number)”) and a function setting DIP switch, and the solenoid is powered by a signal from the microcomputer. The conversion serves as a lock lock, and the microcomputer outputs an unlock signal if the signal input by rotation of the dial matches a preset password (numeric character), and the solenoid outputs the unlock signal. Receiving and unlocking.

The rotary dial switch is preferably a push type switch in terms of operation convenience, and the microcomputer can use a single chip.

[0009]

Since the digital display type electronic lock according to the present invention has the above-described configuration, it is possible to reliably obtain a stable rotation output without calculating the mechanical accuracy of the dial, and to unlock the lock by performing arithmetic processing with a microcomputer. It becomes possible.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A digital display type electronic lock according to the present invention will be specifically described based on an embodiment shown in the drawings.

FIG. 1 is a perspective view showing an example of a dial electronic lock according to the present invention. FIG. 1 (a) shows a dial board, and FIG. 1 (b) shows an arithmetic printed board connected to (a). 2A is a plan view showing an example of a dial signal conversion terminal arrangement, FIG. 2B is a view showing an example of a short bar, and FIG. 3 is an example of a safe in which a dial board according to the present invention is installed. FIG. FIG. 4 is a diagram showing waveforms of two series of signals generated by the rotation of the dial, and FIG. 5 is a diagram showing an example of an electric signal generated at the rotation position of the dial.
(A) shows a case of normal rotation of the dial, and (b) shows a case of reverse rotation. FIG. 6 is a diagram showing an example of a function selection method using a dip switch.

In FIG. 1A, reference numeral 1 denotes a dial board, on which a dial 2, a push switch 3, a digital display unit 4, and a printed circuit board 5 for converting a dial signal are arranged and installed outside the housing. The dial board 1 is connected to a power supply 7 and further connected to a calculation printed circuit board 10 of FIG. The arithmetic printed board 10 includes a microcomputer 11 and a nonvolatile memory 1.
2. Mounts the dip switch 13 and the like, and is mounted and installed inside the housing. The microcomputer 11 is connected to a solenoid 14 and a buzzer 17.

The dial 2 emits an electric signal by rotation, and the push switch 3 activates the microcomputer 11 to set a password (numeric character). The digital display unit 4 displays a password character (numeric), and displays the character set at the position corresponding to the dial 2 on an LCD (liquid crystal display) or an LED.
(Light emitting diode) or the like can be displayed brightly and digitally. The dial signal conversion printed circuit board 5 is designed with contacts (to be described later with reference to FIG. 2) for obtaining signals, switches, and the like.

The microcomputer 11 mounted on the arithmetic printed circuit board 10 calculates a signal output by rotating the dial, displays characters (numerals) corresponding to the signal on the digital display unit 4, and displays the nonvolatile memory ( EEPROM)
Reference numeral 12 has a function of storing a set secret character (number).
The written secret characters (numbers) cannot be determined without the power supply. The personal identification character (number) and the set number are set in advance, but the character and the number can be easily set and changed. The change of the password character (number) can be performed by sending a signal to the microcomputer 11 by a switch or the like and entering the change mode.

The dip switch 13 is a switch for selecting and setting the function of the microcomputer 11. (1) Password: .alphabet / numerical / syllabary /
Symbol (2) Set number of times: 2/3/4/5 (3) Buzzer sound: Yes / No (4) Multiple secret characters (numbers): 1/2/3/4, etc. Can be selected. The solenoid 14 has an iron core 15, generates a magnetic field when energized, and operates the iron core 15 as a knuckle. The buzzer 17 displays the above-mentioned digital display and notifies the change by sound at the same time as the dial relative position.

As shown in FIG. 2 (a), for example, the inside of the dial 2 is a copper foil drawn on a dial signal conversion printed circuit board 5 along two concentric circles in an island shape. The innermost concentric circle 22 is a common contact for power supply that is not an island but a continuous circle, 23 is a first contact group, 24 is a second contact group, 20 is a dial shaft, 25 is a power source (input), and 26 and 27 are These are electric signal (output) terminals from the first contact group 22 and the second contact group 23, respectively.

In order to output an electric signal, for example, FIG.
The short bar 21 shown in (b) is used. In the figure, a dial shaft 20 is fixed to the center of the dial 2, and a short bar 21 is attached to a copper foil common contact 22 and a contact group 23 or 24 drawn on the substrate 5 with the rotation of the dial 2.
By connecting the contacts 28 and 29 or 30, the two series of signals can be generated.

In the present invention, an electric signal is output by rotating the dial 2 having the above-described configuration, and two signals are generated by rotation as a method for determining whether the dial 2 is rotating forward or inverting. The contacts of the two series of signals are arranged so that the waveforms as shown in FIG. 4 are output, and the signals are output in accordance with the change in the relative position with the rotation.
In FIG. 4, the numbers added below the waveform indicate the relative positions of the dials (referred to as “positions”), and the first character (number) is assigned to the position when the microcomputer 11 is started. For example, since “0” or “A” is assigned, a signal due to rotation is displayed on the digital display unit 4 by judging addition or subtraction and only a change in position.

FIG. 5 is a diagram showing an example of an electric signal generated at the rotational position of the dial. FIG.
(B) shows the case of reverse rotation. The numbers 0 and 1 below indicate, for example, that the first contact group is connected to the second contact group to generate a signal, respectively. 1 ",
The case where there is none is represented by “0”. How many relative positions are set per rotation depends on the number of arranged contacts. Also, characters corresponding to the positions, for example, “A”, “B”,
Alphabet such as "C", "A", "I", "U"
If the Japanese syllabary is set, the character set at the corresponding position can be displayed on the LCD or LED.

[0020]

FIG. 3 is a perspective view showing an example of a safe provided with a digital display type electronic lock according to the present invention. In FIG. 3, 31 is a safe main body, 32 is a front door, 33 is a dial board, and 34 is a handle. FIG. 6 is a diagram showing an example of a function selecting method of the digital display type electronic lock according to the present invention.

Example of operation method: 1. Function selection A printed circuit board 10 for calculation on the back side of the front door 32 [FIG.
(B)] is set by the dip switch 13 mounted in [2]. The setting is valid only for the function set for each item shown in FIG. For example, when the set number of times is set to three, the registration of the password character (number) is fixed to three times, so that the password character (number) registered in the two-time mode or the four-time mode becomes invalid. However, the function registered once becomes effective when returning to the same mode.

2. Unlocking method of user number Function selection = number (00 to 99) 3 times ("12", "34", "56") One type of password (number) Buzzer is set to ON And The sound of the buzzer is specified according to each operation. For example, in the following example, "A" is "Pi"
"B" is "Peeee", "C" is "Pyoro ~~~~~"
Set the sound such as.

(1) Press the push switch 3 at the center of the dial. Display "00" Buzzer "A" (2) Rotate the dial 2 to match the first password "12" Display "12" (3) Push switch 3 Press and set the number. Buzzer "A" (4) Turn the dial 2 to match the second password "34" Display "34" (5) Press the push switch 3 to set the number Buzzer "A" (6) Similarly, set the third password. When the password is correct, the solenoid output is output together with the unlock sound. Buzzer "AB" is displayed. When the password is wrong, the error sound is displayed. Buzzer "AAA" is displayed. "X" Flicker and disappears. The password at the time of shipment from the factory is “12”, “34”, “5”.
6 "

3. Password change method (1) Unlock with correct password (initial value is "12")
("34""56") (2) Press the memory switch on the back of the safe tobira Buzzer "A" display "00" (3) Rotate the dial to change the new first password ("0"
(4) Repeat the operation of the number of digits (digits) set by the selection function (3). Buzzer “C” is displayed. (5) Registration completed. Perform a lock test. If nothing is input for more than 8 seconds, the system enters a power saving mode (standby mode). In this case, start over.

[0025]

As described above, the digital display type electronic lock according to the present invention has the above-described configuration. By changing the rotation of the dial into an electric signal and generating two series of signals, the forward / reverse rotation can be achieved. Not only can it be determined, but also the program can be programmed into the microcomputer to easily change the setting of the number of digits of the personal identification characters or numbers and the input method. In addition, alphabets, syllabary symbols, illustrations, pictures, and, of course, numbers can be freely assigned to the rotational relative positions as the display secret letters or numbers, so that easy-to-remember secret letters or numbers can be set. . In addition, since a display for display that can be seen brightly and clearly even in a dark place can be adopted, it can be used even by a blind person.

Since the start-up of the microcomputer is performed by pressing the push switch, the first password or numeral is always determined. Further, since the position by rotation is also kept set, it is possible to input a correct password or numeral by sound even if the eyes are not visible at all.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a dial board according to the present invention. (A) Dial part main body (b) A printed circuit board connected to (a)

FIG. 2A is a plan view showing an example of a dial signal conversion terminal arrangement. FIG. 2B is a view showing an example of a short bar.

FIG. 3 is a perspective view showing an example of a safe provided with an electronic lock according to the present invention.

FIG. 4 is a diagram showing waveforms of two series of signals generated by rotation of a dial;

FIG. 5 is a diagram showing an example of an electric signal generated at a rotating position of a dial. (A) In the case of normal rotation (b) In the case of reverse rotation

FIG. 6 is a diagram showing an example of a function selection method.

[Explanation of symbols]

 Reference Signs List 1 dial board 2 dial 3 push switch 4 digital display unit 5 dial signal conversion printed circuit board 6, connection cable 7, 25 power supply 10 operation printed circuit board 11 single chip microcomputer 12 nonvolatile memory 13 dip switch 14 solenoid 15 iron core 17 buzzer Reference Signs List 20 dial shaft 21 short bar 22 power supply common contact 23 first contact group 24 second contact group 26 first series signal (output) 27 second series signal (output) 28, 29, 30 short bar contact part 31 safe 32 door 33 dial board

Claims (3)

[Claims] 1. A dial electronic lock comprising a dial board, a printed circuit board for operation, and a solenoid, wherein the dial board is rotated by rotating a dial.
A rotary dial switch for generating two series of electric signals corresponding to the relative positions, and a digital display unit for displaying the relative positions of the dials; Equipped with a non-volatile memory and a function setting DIP switch for storing a secret character or a number, and the solenoid serves as a lock for locking by converting a signal from the microcomputer into power. If the signal input by the rotation of the dial matches a preset secret character or numeral, an unlock signal is output, and the solenoid is configured to unlock by receiving the signal. Display type electronic lock. 2. The digital display type electronic lock according to claim 1, wherein the rotary dial switch is a rotary dial push switch. 3. The digital display type electronic lock according to claim 1, wherein the microcomputer is a single-chip microcomputer.