JPH0566800U - Gas leak alarm - Google Patents

Abstract

(57) [Summary] [Purpose] The gas leak alarm device is separated into a gas leak signal transmitter and a gas leak signal receiver, and a transmitter / receiver unit is provided for each, and alarm units are installed at multiple locations in the home. When a gas leak is detected, a gas leak signal is transmitted from the gas leak signal transmitter to multiple gas leak signal receivers, and a gas leak alarm is issued at multiple installation locations to detect the gas leak. The purpose is to provide something that can be surely confirmed even from a distance. The gas leak signal transmitter 1 includes a power supply unit 2, a gas detection unit 3 for detecting a predetermined gas concentration, a drive unit 5 for driving a display output unit 6 such as a buzzer, a gas leak signal receiver 8, and a signal. The gas leak signal receiver 8 is composed of a transmitter / receiver 7 for transmitting / receiving and a controller 4 for controlling each of the above-mentioned units, and a gas leak signal receiver 8 for transmitting / receiving a signal to / from the gas leak signal transmitter 1; Drive unit 1 for driving output unit 13
2 and a control unit 11 that controls each of the above units.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention, when using city gas or LP gas, etc. in a general household, when a gas leak is detected, a buzzer sounds to inform the gas user of the gas leak and to prevent a gas explosion accident. The present invention relates to a gas leak alarm device for preventing it.

[0002]

[Prior Art]

 Conventional gas leak alarms include the following to notify a third party when a gas leak is detected.

FIG. 2 is the most basic one, and it comprises a power supply unit 20, a gas detection unit 21, a drive unit 22, and a display output unit 23, which are compactly housed in a single housing and are free from gas leakage. When it is detected, the display output unit 23 is driven and, for example, a buzzer or the like is sounded to notify a resident in the home.

FIG. 3 uses speech synthesis, and is basically the same as FIG. 2, but performs speech output for display, and includes a power supply unit 20, a gas detection unit 21, a control unit 24, and a data unit. It comprises an audio unit 25, a voice synthesizer 26, an amplifier 27, and a speaker, which are compactly housed in one housing. When a gas leak is detected, the control unit reads data necessary for voice synthesis (for example, gas leak. Check, etc.) from the data unit, and the voice synthesizer unit 28 converts the digital signal into an analog voice. It is converted into a signal, amplified by an amplifier, and then notified by voice from a speaker or the like. (See, for example, Japanese Patent Laid-Open No. 1-265123) FIG. 4 is a diagram in which a voltage output unit is added based on FIG. 2, and includes a power supply unit 20, a gas detection unit 21, a control unit 24, a drive unit 22, and a display output. The unit 23, the voltage output unit 29, and the output terminal 31 are compactly housed in one housing. For example, the voltage output unit that outputs a voltage of 6 V in the normal state and the voltage of 12 V in the case of detecting a gas leak abnormality and the output terminal are connected to another device such as a home automation system. When a gas leak is detected, the display output unit is driven, and, for example, a buzzer sounds to notify residents in the home, and 12V is output from the output terminal of the gas leak alarm, and this output voltage is input. Home automation systems are used in systems that automatically call security companies to deal with gas leaks.

FIG. 5 is a diagram in which a non-voltage output section is added based on FIG. 2, and includes a power supply section 20, a control section 24, a drive section 22, a display output section 23, a non-voltage output section 30, and an output terminal 31. , These are compactly stored in one housing. The non-voltage output unit 30 is composed of, for example, a contact of a relay, and the contact of the relay is normally open. However, when a gas leak is detected, the contact of the relay is closed. By doing so, a signal is output to an externally connected device, such as a microcomputer meter for measuring the flow rate of LP gas. Upon receiving the gas leak signal, the Mykon meter operates the gas cutoff valve built into the meter to stop the gas supply and prevent the release of raw gas.

Others include various combinations of the above-mentioned methods, modifications, and applications.

As described above, as a basic operation of the gas leak alarm device, when a gas leak is detected, the resident at home is informed of the gas leak by a beep sound or the like. Residents who heard the buzzer or other alarm sound determined that a gas leak had occurred, and whether the operating lever of the gas appliance was stopped midway, or whether the fire was extinguished due to spillage or the like. Check the cause of gas leakage and take measures. However, if you do not understand the cause, such as minute cracks caused by the deterioration of the gas hose, etc., and if you do not understand it for the time being, tighten the main bottle of the gas cylinder and contact the contracting gas company etc. Take appropriate measures such as checking by a specialist.

On the other hand, a device that automatically copes with a gas leak by interlocking with an external connection device (for example, FIG. 4 or FIG. 5 described above) is in the case of absence or when there is only one elderly person. It is a very effective means.

However, when contracting with a security company or the like, there are problems such as a contract fee or an operating cost, and it is not possible to join unless there is a financial allowance.

[0010]

[Problems to be solved by the device]

 Conventional gas leak alarms are compactly housed in a single housing. When a gas leak is detected, a buzzer or other alarm sounds only at the location where the gas leak alarm is installed (usually in the kitchen). There wasn't. Since this notification sound has a certain volume, in a quiet environment, it can be recognized by ordinary people even in a slightly distant place, but for example, when watching TV at a loud volume in the living room, In some cases, such as when I was in another room that was closed, I could not hear it, and despite the fact that the abnormal gas leak was detected and notified, the response was delayed and there was a risk of an accident.

Further, by using the gas leak alarm of the type shown in FIG. 4 or FIG. 5 and wiring from the output terminal to another room with a lead wire or the like, it is possible to recognize even when in another room. However, if many are installed, there are problems such as the trouble of wiring, or the holes are created between the rooms due to the wiring, and the wiring is visible, which impairs the aesthetics. ..

The present invention provides a gas leak alarm device that can reliably notify a resident of a house when a gas leak is detected.

[0013]

[Means for Solving the Problems]

 A power supply unit for supplying necessary power from a household commercial power supply, a gas detection unit for detecting a gas having a predetermined concentration, and a drive unit for driving the display output unit according to the output of the gas detection unit. And a gas leak signal transmitter including a transmission / reception unit for transmitting a gas leak signal output from the gas detection unit, and a control unit for receiving a signal from the gas detection unit and controlling the drive unit and the transmission / reception unit. , A power supply unit for supplying necessary power from a commercial power source for home use, a transmission / reception unit for receiving the signal of the gas leak signal transmitter / receiver, and a display output unit for receiving the signal of the transmission / reception unit It is assumed that it is composed of a gas leak signal receiver consisting of a control unit for controlling the drive unit of.

[0014]

[Action]

 The gas leak signal transmitter connected to the commercial power source is constantly monitoring gas leaks.If a gas leak is detected by the gas detector that detects a gas with a predetermined concentration, the controller, for example, a buzzer or the like. It drives the display output unit of and also controls the transmission / reception unit for transmitting the gas leakage signal to transmit the gas leakage signal.

On the other hand, the gas leak signal receiver installed at a remote place and connected to the commercial power supply is always waiting to receive the gas leak signal transmitted by the gas leak signal transmitter. When the gas leak signal is received from the leak signal transmitter, the control unit drives a display output unit such as a buzzer to notify the gas leak.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. Reference numeral 1 is a gas leak signal transmitter, which is a power supply unit 2 for supplying necessary power from a commercial power supply for home use and a predetermined power supply unit. A gas detection unit 3 for detecting a gas having a concentration, a drive unit 5 for driving a display output unit 6 according to the output of the gas detection unit 3, and a gas leak signal transmitted to a gas leak signal receiver 8 described later. And a control unit 4 for monitoring the signal of the gas detection unit 3 and controlling the drive unit 5 and the transmission / reception unit 7.

On the other hand, the gas leak signal receiver 8 includes a power source unit 9 for supplying necessary power from a commercial power source for home use, and a transmission / reception unit for receiving a transmission signal from the gas leak signal transmitter 1. It is composed of a unit 10, a drive unit 12 for driving the display output unit 13, and a control unit 11 for monitoring the signals of the transmission / reception unit 10 and controlling the drive unit 12, and if necessary. Are installed at multiple locations in the home.

The following operation is performed in the above configuration.

The gas leak signal transmitter 1 constantly monitors the gas leak by supplying power from the power supply unit 2. When the gas is not leaking, there is no output from the gas detection unit 3, and the control unit 4 does not output to the drive unit 5 and the transmission / reception unit 7.

Therefore, for example, the display output unit 6 including a buzzer does not operate and the buzzer does not sound. Further, there is no output from the transmitting / receiving unit 7. As a result, all of the installed gas leak signal receivers 8 are in a standby state because they constantly receive the signal from the gas leak signal transmitter 1 by being supplied with power from the power supply unit 9, but the gas leak signal receiver 8 is in a standby state. Since the signal does not come from the signal transmitter 1, the output from the transmission / reception unit 10 cannot be obtained, and the control unit 11 does not output to the drive unit 12.

Therefore, for example, the display output unit 13 including a buzzer does not operate and the buzzer does not sound.

Next, a case where the gas detection unit 3 detects a gas having a predetermined concentration, that is, a case where gas leakage occurs will be described.

When a gas leak occurs and reaches a predetermined concentration that can be detected by the gas leak detection unit 3, the gas leak detection unit 3 outputs a signal to the control unit 4. When the control unit 4 receives this signal and determines that a gas leak has been detected, it outputs a signal to the drive unit 5 and the transmission / reception unit 7. With this signal, the drive unit 5 drives the display output unit 6 such as a buzzer to sound the buzzer and controls the transmission / reception unit 7 to output a gas leak signal to the gas leak signal receiver 8. To do. In all the installed gas leak signal receivers 8, when the transmitter / receiver 10 receives the gas leak signal, this information is output to the controller 11. When the control unit 11 inputs the information and determines that the signal is a gas leak signal, the control unit 11 outputs a drive signal to the drive unit 12. The drive unit 12 drives the display output unit 13 such as a buzzer in response to the drive signal and sounds the buzzer.

If the information received by the transmitter / receiver 10 is not a gas leak signal as a result of the judgment by the controller 11, the drive signal is sent to the drive unit 12 as false information due to noise or the like. Is not output. Therefore, the buzzer does not ring.

When the resident who knows the gas leak due to the buzzer sounds and takes appropriate measures to eliminate the gas leak, the gas detection unit 3 of the gas leak signal transmitter 1 does not detect the gas either. Therefore, the output from the gas detector 3 also disappears. Then, by monitoring the control unit 4, it is determined that the gas leakage has disappeared, and the signal output to the drive unit 5 and the transmission / reception unit 7 until now is stopped. As a result, the drive unit 5 stops, and the display output unit 6 such as a buzzer also stops. Further, the gas leak signal output from the transmitter / receiver 7 is also stopped. In all the installed gas leak signal receivers 8, the gas leak signal received by the transmission / reception unit 10 has disappeared, so that the signal to the control unit 11 also disappears.

As a result, the control unit 11 stops the drive signal to the drive unit 12 which has been output so far. This also stops the operation of the display output unit 13 such as a buzzer.

In the present embodiment, the gas leak signal transmitting unit 1 for detecting gas leak is described as one example, but the place where the gas appliance is installed, for example, the kitchen gas table or the gas. Needless to say, if all of them are installed in a water heater or other location such as a gas stove in the living room, gas leaks can be detected at any location, which is even more effective.

Further, the gas leak signal does not have to be output all the time during the gas leak. When a gas leak is detected, a gas leak detection signal is output in a single shot, and when the gas leak disappears, a gas leak signal is output. Using a method that outputs the leak stop signal in a single shot does not change the effect.

Further, as the display output unit, if not only a buzzer or a speaker for audible display but also a rotating light for visual display is used, even if a person with a hearing loss or watching a TV etc. with an increased volume, It can be surely notified.

[0031]

[Effect of the device]

 When gas leaks, the gas leak can be immediately confirmed by the gas leak signal receiver even when the gas leak is not in the place where the gas leak occurred.

Therefore, quick treatment can be performed, and an accident due to gas leakage can be prevented.

[Brief description of drawings]

FIG. 1 is a block diagram of a gas leak alarm device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a gas leak alarm device showing a conventional embodiment.

FIG. 3 is a block diagram of a gas leak alarm device showing a conventional embodiment.

FIG. 4 is a block diagram of a gas leak alarm device showing a conventional embodiment.

FIG. 5 is a block diagram of a gas leak alarm device showing a conventional embodiment.

[Explanation of symbols]

 1 Gas Leakage Signal Transmitter 2 Power Supply Section 3 Gas Detection Section 4 Control Section 5 Drive Section 6 Display Output Section 7 Transmission Section 8 Gas Leakage Signal Receiver 9 Power Supply Section 10 Reception Section 11 Control Section 12 Drive Section 13 Display Output Section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kuniaki Ito, 3-3 Shinjuyoji, Kashiwa-shi, Chiba, Japan 1 Hitate Co., Ltd. (72) Inventor, Junichi Shimizu 1-3, Shinjuyoji, Kashiwa, Chiba, 1 In Home Tech

Claims (1)

[Scope of utility model registration request] 1. A power supply unit (2) for supplying necessary power from a household commercial power supply, a gas detection unit (3) for detecting a gas having a predetermined concentration, and outputs of the gas detection unit (3). A drive unit (5) for driving the display output unit (6) according to
A transmission / reception unit (7) for transmitting a gas leak signal by the output of the gas detection unit (3) and a drive unit (5) and a transmission / reception unit (7) upon receiving the signal of the gas detection unit (3). Gas leak signal transmitter (1) consisting of control unit (4) for controlling
A power supply unit (9) for supplying necessary power from a household commercial power supply, a transmission / reception unit (10) for receiving a signal from the gas leak signal transmitter (1), and the transmission / reception unit (10). Gas comprising a gas leak signal receiver (8) comprising a control unit (11) for controlling a drive unit (12) for receiving a signal and driving a display output unit (13) Leak alarm.