JP2004068538A - Lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock device that is easy for a normal person to open but difficult for a person not required to operate it, such as a demented patient, to open. <P>SOLUTION: A display part 19 of the lock device 1 displays a pattern for a fixed time, and if a user can enter a pattern equal to the displayed pattern in an input part 21, a solenoid valve 7 is opened to unlock a gas stove 9. A CPU 11 of the lock device 1 monitors the elapsed time of the unlocked state of the gas stove 9, and when a given time elapses, it closes the solenoid valve 7 to lock the gas stove 9. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lock device, and more particularly, to a lock device in which a key portion utilizing a decrease in instantaneous memory capacity of a dementia patient is attached to a gas stove, an open flame stove, an automobile, a mechanical device, or the like.
[0002]
[Prior art]
As a key for a gas stove, an open flame stove, an automobile, a mechanical device, and the like, there is a safety lock mechanism such as a child lock. Alternatively, there is a lock mechanism using biomimedics using physical features such as a normal key and lock, and fingerprint authentication.
[0003]
[Problems to be solved by the invention]
However, in the former device, the key is simply double-locked, and even if the user does not want to use a mechanical device such as a dementia patient or a drunken person, the basic safety lock mechanism is released. What happens is that it happens.
[0004]
In the latter device, there is an inconvenience that a healthy person who does not have a key or a healthy person who does not register physical characteristics in biomimedics cannot use the mechanical device.
[0005]
The present invention has been made in view of such a problem, and its purpose is to enable easy unlocking for a healthy person, but for a dementia patient or a drunken person who is in trouble when operated. Is to provide a locking device that is difficult to unlock.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an output unit that outputs a predetermined pattern for a predetermined time, an input unit that inputs a pattern, and a pattern input from the input unit matches the predetermined pattern. A lock device comprising: a determination unit configured to determine whether or not a lock is established; and a release unit configured to release a lock when the determination unit determines that they match.
[0007]
The pattern is a number, a graphic, or the like, and the output means displays all or a part of the predetermined pattern by emitting or discoloring, or displays all or a part of the predetermined pattern by emitting or discoloring in chronological order. I do.
[0008]
Alternatively, the output means may output the predetermined pattern by voice or may output it in Braille.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram of a lock device 1 according to an embodiment of the present invention, FIG. 2 is a diagram illustrating a configuration of the lock device 1, FIG. 3 is a plan view of an example of a display on a display unit 19, FIG. 4 is a plan view of an example of the input unit 21.
[0010]
As shown in FIG. 1, the lock device 1 according to the present invention is connected to a solenoid valve 7 installed between a fuse cock 5 and a gas stove 9. The electromagnetic valve 7 may be installed individually for instruments such as the gas stove 9 or may be installed so as to be built in the meter 3. The solenoid valve 7 is opened and closed by the lock device 1 and is normally closed.
[0011]
If the user can input the same pattern as the displayed pattern within the allowable time, the lock device 1 determines that the user is a healthy person having an instantaneous memory ability, opens the solenoid valve 7, and opens the solenoid valve 7. A gas stove 9 can be used. The allowable time for the user to input the pattern may be changed according to the symptoms of the dementia patient.
[0012]
As shown in FIG. 2, the lock device 1 has a CPU 11 for controlling the whole. The memory 13, the solenoid valve driving unit 15, the random number generation unit 17, the display unit 19, and the input unit 21 are connected to the CPU 11. The solenoid valve driving section 15 is connected to the solenoid valve 7.
[0013]
The memory 13 stores programs and data necessary for the CPU 11 to perform control, patterns to be displayed on the display unit 19, and the like.
[0014]
The random number creation unit 17 creates a number pattern displayed on the display unit 19. This number pattern is about five digits, is different every time, and is desirably random. Further, the length of the number pattern displayed on the display unit 19 and the display time may be changed according to the symptoms of the dementia patient.
[0015]
The display unit 19 displays the numeric pattern created by the random number creation unit 17 for a certain period of time. As shown in FIG. 3, the display section 19 is composed of six-digit display segments and displays a number pattern of about six digits for a certain period of time. Alternatively, the display unit 19 may be configured with one display segment, and a plurality of numbers may be displayed in chronological order.
[0016]
The input unit 21 is for the user to input a numeric pattern or the like. As shown in FIG. 4, the input unit 21 includes a numeric keypad 27 for inputting numbers from 0 to 9, a start key 23 that is pressed when the user uses the gas stove 9, an enter key 25 that is pressed after the input of the number pattern, and the like. have.
[0017]
The solenoid valve driving unit 15 opens the solenoid valve 7 according to the input pattern determination of the CPU 11. When a predetermined time elapses after the electromagnetic valve 7 is opened, the electromagnetic valve driving unit 15 closes the electromagnetic valve 7 in accordance with an instruction from the CPU 11.
[0018]
The lock device 1 may be connected to the meter 3, and after the electromagnetic valve 7 is opened, the flow rate of the gas may be monitored, and the electromagnetic valve 7 may be closed when the flow rate stops.
[0019]
Next, the operation of the lock device 1 according to the present invention will be described with reference to FIG. FIG. 5 is a flowchart showing the operation of the lock device 1 according to the present invention.
[0020]
The CPU 11 of the lock device 1 monitors the input to the input unit 21 and determines whether the user has pressed the start key 23 (step 101). Here, the user is a dementia patient, a healthy person, or the like.
[0021]
When the CPU 11 determines that the start key 23 has been pressed, the random number creation unit 17 creates a number pattern of a predetermined number of digits by a system administrator (for example, a healthy person), and stores the created number pattern in the memory 13. The display unit 19 displays the created number pattern for a certain period of time (step 102). The time for displaying the numeric pattern on the display unit 19 is defined in advance by the system administrator. In the display of the number pattern, the predetermined number of digits may be displayed simultaneously, or the number pattern may be displayed one digit at a time in chronological order.
[0022]
The CPU 11 determines whether a number has been input from the numeric keypad 27 of the input unit 21 within the allowable input time and the enter key 25 has been pressed (step 103). If the enter key 25 is not pressed during the predefined input allowable time, the user determines that there is no instantaneous memory capability, does not unlock the gas stove 9, and ends the operation.
[0023]
The CPU 11 determines whether the number pattern input by the input unit 21 is equal to the number pattern created by the random number creation unit 17 (step 104). If they are not equal, the user determines that there is no instantaneous storage capability, ends the operation without unlocking the key of the gas stove 9, and ends the operation.
[0024]
If it is determined that the number pattern input by the input unit 21 is equal to the number pattern created by the random number creation unit 17, the solenoid valve driving unit 15 opens the solenoid valve 7 and unlocks the key of the gas stove 9 ( Step 105).
In steps 104 and 105, the unlocking may be performed only when the password completely matches, or may be unlocked when the partial matching exceeds the threshold value. The difficulty of unlocking may be adjusted based on the complexity of the pattern or the accuracy of the reproduced pattern.
[0025]
After the gas stove 9 is unlocked, the CPU 11 determines whether a predetermined time has elapsed (step 106). If it is determined that the predetermined time has elapsed, the solenoid valve driving unit 15 closes the solenoid valve 7 and locks the key of the gas stove 9 (step 107). Alternatively, the gas flow rate of the meter 3 may be constantly monitored, and when the gas flow rate stops, the solenoid valve driving unit 15 may close the solenoid valve 7 and lock the key of the gas stove 9.
[0026]
According to the present embodiment, since the dementia patient or the like has no instantaneous memory, the lock device cannot be opened, and it is extremely difficult to use the gas stove, and dangerous operations can be prevented. There is no need to register users in advance, and it is not necessary for each user to have a key.
[0027]
In addition, daily use of the key provided by the lock device can provide training for dementia patients, and may be used secondarily to alleviate dementia symptoms.
[0028]
Furthermore, not only dementia patients but also children can be prevented from performing prank operations.
[0029]
The preferred embodiment of the lock device according to the present invention has been described above with reference to the accompanying drawings, but is not limited to the example according to the present invention. It is clear that those skilled in the art can conceive various changes or modifications within the scope of the technical idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.
[0030]
For example, in the above-described embodiment, the lock device controls opening and closing of the solenoid valve of the gas stove. However, the lock device can be used not only for the gas stove but also for an open fire stove, an automobile, a mechanical device, and the like.
[0031]
Further, the pattern displayed on the display device may be not only a numeral but also a figure or the like. A pattern may be formed by emitting or discoloring all or part of some types of figures, or a pattern may be formed by emitting or discoloring all or part of some types of figures in time series. May be configured.
[0032]
Further, the pattern may be configured by a time rhythm like a Morse code. Alternatively, a pattern using Braille may be configured for the blind, or a method of presenting a word by voice and repeating the word by the user may be used.
[0033]
Further, in the case of successive cancellation, the random number displayed in step 102 may be complicated. Further, in the case of successive release, the accuracy of the matching in step 104 may be made strict.
[0034]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a lock device that can be easily unlocked by a healthy person, but difficult to unlock for a dementia patient or the like who is in trouble when operated. Can be.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a lock device 1. FIG. 2 is a diagram showing a configuration of a lock device 1. FIG. 3 is a plan view of an example of a display on a display unit 19. FIG. FIG. 5 is a flowchart showing the operation of the lock device 1.
1 Locking device 3 Meter 5 Fuse cock 7 Solenoid valve 9 Gas stove 11 CPU
13 Memory 15 Solenoid valve drive unit 17 Random number creation unit 19 Display unit 21 Input unit

Claims (10)

Output means for outputting a predetermined pattern for a predetermined time;
Input means for inputting a pattern,
Determining means for determining whether the pattern input from the input means matches the predetermined pattern,
Release means for releasing the lock when the determination means determines that they match,
A lock device comprising: The lock device according to claim 1, wherein the pattern is a numeral or a graphic. The lock device according to claim 1, wherein the output unit is a display unit that displays a predetermined pattern. 2. The lock device according to claim 1, wherein the output unit is a display unit that emits or changes the color of all or a part of the predetermined pattern. 2. The lock device according to claim 1, wherein the output unit is a display unit that displays all or a part of the predetermined pattern in a time-series manner by emitting light or changing colors. The lock device according to claim 1, wherein the output unit is a voice output unit that outputs a predetermined pattern by voice. The lock device according to claim 1, wherein the output unit outputs Braille. 2. The cancellation unit according to claim 1, wherein the cancellation unit adjusts the difficulty of the cancellation according to the complexity of the pattern output from the output unit or the accuracy of the pattern input from the input unit. 3. Locking device. Means for complicating the pattern output by the output means when successively released,
The locking device according to claim 1, further comprising: In the case of consecutive cancellations, means for tightening the accuracy of the match of the determination means,
The locking device according to claim 1, further comprising:

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