KR200412333Y1 - wireless gas cut off device - Google Patents

Abstract

The present invention relates to a gas shutoff device, and the technical problem to be solved is to automatically shut off the gas valve when a gas leak or to automatically close the gas valve at a predetermined time.

To this end, an example of a solution according to the present invention includes a lock or release signal of a gas shutoff valve by a user input, a wireless transmitter for converting and outputting a lock reservation time signal into a wireless signal, and receiving a wireless signal from the wireless transmitter. A gas shutoff device is disclosed that consists of a wireless valve controller that locks or unlocks a gas shutoff valve immediately, or locks at a scheduled time. In addition, the present invention may check various states of the wireless valve controller through the wireless transmitter.

Gas shutoff valve, gas sensor, valve drive part, alarm part, ventilator

Description

Gas cut off device

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

2 is a block diagram showing the configuration of a gas shutoff device according to another embodiment of the present invention.

3 is a block diagram showing the configuration of a gas shutoff apparatus according to another embodiment of the present invention.

4A is an example of the circuit diagram which shows the structure of the radio transmitter in FIG. 3, and FIG. 4B is an example of the circuit diagram which shows the structure of the radio valve controller in FIG.

5 is a block diagram illustrating a gas shutoff apparatus and a control method thereof according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100,200,300; Gas shut off device according to the present invention

101; Gas sensor 102; Input

103; Control unit 104; Valve drive

105; An alarm unit 106; Local display

108; Power supply 107; Clock signal

108; Storage 210,310; Wireless transmitter

211, 311; Inputs 212, 312; Control

213, 313; Wireless transmitter, wireless transceiver

214, 314; Power supply units 215 and 315; Clock signal

216, 316; Storage 317; Remote display

220,320; Wireless valve controllers 221, 321; Wireless receiver, wireless transceiver

222, 322; Gas sensors 223 and 323; Input

224, 324; Control units 225 and 325; Valve drive

226, 326; Alarm unit 227,327; Local display

228, 328; Power supply 229, 329; Clock signal

230, 330; Storage

The present invention relates to a gas shutoff device, and more particularly, to a gas shutoff device that automatically shuts off a gas valve in case of a gas leak or automatically shuts off a gas valve at a predetermined time.

In general, a cooking apparatus such as a gas range, a gas oven using a gas such as LPG, LNG, or a heating apparatus such as a gas boiler is widely used. Such gas equipment is connected to a gas tank of an outdoor gas tank or a gas tank of a city gas pipe through a pipe to supply gas, and a shutoff valve is installed between the gas device and an outdoor gas tank or a gas device and a gas tank of a city gas corporation. This allows the user to choose the gas supply and shut off.

When cooking using a gas range, the user opens the shutoff valve to supply gas to the gas appliance, ignites the gas supplied using an ignition device installed in the gas appliance, and after the use of the gas appliance is completed, Close and extinguish the ignition device installed in the gas appliance, and secondly close the shutoff valve to cut off the gas supply. In other words, if there is a risk of explosion when gas leaks from the gas appliance, an intermediate shut-off valve is installed in the ignition device and gas pipe installed in the gas appliance to perform the secondary gas shut-off even when the gas range is not used. do.

However, when the gas range is not used, the gas does not leak if there is no problem in the gas range, so it may be inadvertent to shut off the gas by operating the intermediate shutoff valve, and the need to open and close the shutoff valve every time the gas appliance is used. Due to the drawback, the shutoff valve is always left open and the gas appliance is frequently used using only the ignition device, and thus there is a problem of easily exposing a risk of gas accident.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to automatically operate the gas shutoff valve in the case of gas leakage, and also to check the state of the gas shutoff valve with a wireless transmitter, a single wireless transmitter The present invention provides a gas shutoff device capable of operating a plurality of gas shutoff valves.

In order to achieve the above object, the gas shutoff device according to the present invention detects gas leakage and outputs a gas sensor and an electrical signal, and inputs a real-time lock or release command of the gas shutoff valve, or reserves the lock time of the gas shutoff valve. Input unit for outputting the signal as an electrical signal, a gas sensing signal is input by the gas sensor, or a predetermined electrical signal is inputted from the input control unit to control the process and output a predetermined electrical signal, and the output of the control unit A valve driver which immediately locks or releases the gas shutoff valve by a signal or locks it at a scheduled time, an alarm unit that warns of a gas leak state by an output signal of the controller, and a current time or gas by an output signal of the controller It may include a local display for displaying the lock reservation time of the valve .

In addition, the gas shut-off device according to the present invention to achieve the above object is a radio transmitter for converting the lock or release signal of the gas shut-off valve by the user input, the lock reservation time signal to a radio signal and outputs, and the radio transmitter It may include a wireless valve controller to receive a wireless signal from the lock or release the gas shutoff valve immediately, or to lock at the scheduled time.

The wireless transmitter may include an input unit configured to receive a lock or release of a gas shutoff valve and a lock reservation time by a user, a control unit processing a signal by the input unit to output a predetermined control signal, and an output signal of the control unit. It may include a wireless transmission unit for converting the lock or release of the gas shutoff valve, the lock reservation time to a predetermined electrical signal to output.

The wireless valve controller may include a wireless receiver configured to wirelessly receive a lock or release of a gas shutoff valve by the wireless transmitter and a lock reservation time signal, a gas sensor that detects a gas leak and outputs an electrical signal, and a gas shutoff. Inputting a real time locking or releasing command of the valve or a lock reservation time of the gas shutoff valve, an input unit for outputting it as an electrical signal, a predetermined signal is input from the wireless receiver, or a gas detection signal is input by the gas sensor. Or when a predetermined electrical signal is input from the input unit, a control unit outputs a predetermined electrical signal by controlling the control unit, and locks or releases the gas shutoff valve in real time by the output signal of the controller, or reserves the gas shutoff valve for a predetermined time. A valve driving unit that locks in the output of the control unit An alarm unit for warning the gas leak conditions as by the call may include a local display unit to display a lock reservation time of the current time or a gas valve by the output signal of the controller.

The wireless transmitter may further include an input unit configured to receive a real-time lock or release of a gas shutoff valve and a lock reservation time by a user, a control unit processing a signal by the input unit to output a predetermined control signal, and an output signal of the control unit. A radio transceiver for converting the gas shutoff valve to a predetermined electrical signal by outputting the lock or release of the gas shutoff valve and outputting a predetermined electrical signal; And a remote display unit, wherein the wireless transceiver transmits and receives a lock or release state and a lock reservation time state of the gas shutoff valve from the wireless valve controller to the controller, and the controller receives the wireless valve received from the wireless transceiver. Shutdown valve locked or unlocked on controller, when locking Liver status can be displayed via the remote display.

The wireless valve controller may include: a wireless transceiver for wirelessly receiving a lock or release of a real-time gas shutoff valve by the wireless transmitter and a lock reservation time signal; a gas sensor that detects gas leakage and outputs an electrical signal; Inputting a real time locking or releasing command of the gas shutoff valve, or inputting a lock reservation time of the gas shutoff valve as an electrical signal, a predetermined signal is input from the wireless receiver, or a gas detection signal is input by the gas sensor. Is input or a predetermined electrical signal is inputted from the input unit, the control unit controls the output of the predetermined electrical signal, and outputs a predetermined electrical signal, locks or releases the gas shutoff valve in real time, or reserves the gas shutoff valve. The valve driving unit to lock at a predetermined time, and An alarm unit warning a gas leak state by an output signal, and a local display unit displaying a current time or a lock reservation time of a gas valve by an output signal of the controller, wherein the controller is in a locked or unlocked state of a gas shutoff valve And wirelessly transmitting a lock reservation time state to the wireless transmitter using the wireless transceiver.

The alarm unit may be any one selected from a buzzer, a speaker, or a voice integrated circuit.

In addition, the wireless transmitter and the wireless valve controller may communicate by IR or RF communication method.

In addition, a plurality of the wireless transmitter and the wireless valve controller is provided, and after designating one of the plurality of wireless transmitters as the main wireless transmitter, and transmits the radio ID information of the plurality of other wireless transmitters to the main wireless transmitter at the same time By allocating and storing each key number of the main wireless transmitter, the plurality of wireless valve controllers can all be controlled by the main wireless handset.

As described above, the gas shutoff device according to the present invention can prevent a safety accident due to a gas leak by detecting a gas leak and immediately shutting off the gas shutoff valve as well as outputting a warning sound to a user. In addition, the present invention automatically shuts off the gas shutoff valve at a predetermined time, thereby preventing a gas leak due to a user mistake or malfunction of the gas appliance.

In addition, the gas shutoff device according to the present invention may operate the gas shutoff valve in real time through the wireless transmission unit, or may shut off the gas shutoff valve at a scheduled time. Of course, even in this case, when the gas leak is detected, the gas shutoff valve may be operated immediately, and a warning sound may be output to the user to prevent a safety accident due to the leakage of the water.

In addition, the gas shutoff device according to the present invention can not only check the state of the entire wireless valve controller in real time through the wireless transmitter, but also check the operation time of the gas valve, so that the user does not need to check the wireless valve controller. . Of course, even in this case, when the gas leak is detected, the gas shutoff valve is operated immediately, and a warning sound is output to the user to prevent a safety accident due to the leakage of the water.

In addition, the gas shutoff apparatus according to the present invention designates one radio transmitter as a main radio transmitter when there are a plurality of radio transmitters and a wireless valve controller, and wirelessly transmits and stores radio ID information of another radio transmitter, One main radio transmitter can control multiple radio valve controllers.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

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

As shown, the gas shutoff device 100 according to the present invention includes a gas sensor 101, an input unit 102, a control unit 103, a valve drive unit 104, an alarm unit 105, and a local display unit. 106, a power supply unit 107, a clock signal unit 108, and a storage unit 109.

The gas sensor 101 detects a gas leak and converts it into an electrical signal and outputs it to the controller 103. The gas sensor 101 is installed around a gas pipe, a gas hose, or a gas machine, so that the leaked gas can be detected quickly and accurately. The gas sensor 101 may be any one selected from a solid electrolyte gas sensor, a catalytic combustion gas sensor, an n-type semiconductor sensor, a p-type semiconductor sensor, or an equivalent thereof, but is not limited thereto.

The input unit 102 inputs a real time locking or releasing command of the gas shutoff valve, inputs a lock reservation time of the gas shutoff valve, or inputs a current time and converts it into an electrical signal and outputs it to the control unit 103. It plays a role. The input unit 102 may be a conventional keypad method, a touch panel method, or an equivalent method thereof, but is not limited thereto.

The control unit 103 processes the predetermined signals input from the gas sensor 101 and the input unit 102 and outputs them to the valve driving unit 104, the alarm unit 105, and the local display unit 106 to give a predetermined control signal. It plays a role. The controller 103 may be any one selected from a general microprocessor, a programmable logic controller, or an equivalent thereof, and the type of the controller 103 is not limited thereto.

The valve drive 104 actually operates the gas shutoff valve to cause the gas shutoff valve to be shut off or released. Here, the gas shutoff valve may protrude to one side of the gas pipe as in the prior art, and may be manually locked and released, or may be installed and locked only in an electronic manner inside the gas pipe. Of course, the valve driving unit 104 may be installed in both protruding to one side of the gas pipe and installed in the gas pipe. In addition, the valve driver 104 may be a conventional relay and solenoid circuit, but the structure of the valve driver 104 is not limited thereto. The valve driving unit 104 immediately locks or releases the gas shutoff valve by the output signal of the control unit 103, or locks the gas shutoff valve at a reserved time.

The alarm unit 105 serves to warn the leak state of the gas by the output signal of the control unit 103. Of course, the alarm unit 105 operates by outputting a predetermined control signal to the control unit 103 only when the gas sensor 101 detects a gas leak state. The alarm unit 105 may be implemented by a conventional buzzer, a speaker, a voice integrated circuit, and the like, but is not limited thereto.

The local display unit 106 is operated by an output signal of the control unit 103, which displays the current time or the lock reservation time of the gas shutoff valve. Of course, the lock reservation time display of the gas shutoff valve operates by outputting a predetermined control signal only when the user inputs the lock reservation time of the gas shutoff valve through the input unit 102. The local display unit 106 may be a conventional LCD (FND, LED) or its equivalent, but is not limited thereto.

The power supply unit 107 includes a gas sensor 101, an input unit 102, a control unit 103, a valve driving unit 104, an alarm unit 105, a local display unit 106, a clock signal unit 108, and a storage unit. It serves to supply predetermined power to 109. The power supply unit 107 may be an AC-DC converter or a conventional rechargeable battery that converts AC power into DC and drops the voltage, but the type is not limited thereto. In this case, the power supply unit 107 is a rechargeable battery has the advantage that the gas shutoff device 100 according to the present invention operates even in the case of power failure.

The clock signal unit 108 outputs a clock signal so that the control unit 103 can perform stepwise control and arithmetic processing in synchronization with a predetermined clock signal.

The storage unit 109 stores predetermined programs and logic sequences required by the control unit 103, and also stores various data, variables, and the like. Of course, as described above, the storage unit 109 may store a lock reservation time of the gas shutoff valve. The storage unit 109 may be any one selected from a conventional RAM, a ROM, a flash memory, or an equivalent thereof, but is not limited thereto.

On the other hand, although not shown in the drawings, the control unit 103 may be further connected to the fan drive unit for driving the fan. The fan driving unit serves to discharge the gas to the outside by operating the fan by the output signal of the control unit 103. The fan drive unit may also be a general relay or an equivalent thereof for connecting the fan to a power source, but the type is not limited thereto. In addition, the fan driving unit also operates by outputting a predetermined control signal to the control unit 103 only when the gas sensor 101 detects a gas leak state. The ventilator and the ventilator driving unit may be installed at a position spaced apart from the gas pipe, the gas hose, and the gas apparatus, so that an electrical spark that may occur during operation of the ventilator or the fan driving unit may not be provided toward the leaking gas.

In this way, the gas shut-off device 100 according to the present invention can immediately operate the gas shutoff valve when the gas leaks and at the same time give an alarm warning, and also operate the ventilator. Is prevented. In addition, the user can reserve the gas lock time in advance, it is possible to more proactively prevent safety accidents caused by gas leakage.

2 is a block diagram showing the configuration of a gas shutoff device according to another embodiment of the present invention.

As shown, the gas shutoff apparatus 200 according to another embodiment of the present invention includes a wireless transmitter 210 and a wireless valve controller 220.

The wireless transmitter 210 converts the lock or release signal of the gas shutoff valve and the lock reservation time signal by the user input into a wireless signal and transmits the converted signal to the wireless valve controller 220. This is explained in more detail.

The wireless transmitter 210 includes an input unit 211, a control unit 212, a wireless transmitter 213, a power supply unit 214, a clock signal unit 215, and a storage unit 216.

The input unit 211 converts the signal into an electrical signal when the user inputs a real time locking or releasing command of the gas shutoff valve, inputs a lock reservation time of the gas shutoff valve, or inputs a current time and outputs it to the control unit 212. It plays a role. The input unit 211 may be a conventional keypad method, a touch panel method, or an equivalent method thereof, but is not limited thereto.

The controller 212 processes an output signal by the input unit 211, converts the output signal into a predetermined signal, and outputs the converted signal to the wireless transmitter 213. The controller 212 may be any one selected from a general microprocessor, a programmable logic controller, or an equivalent thereof, and the type of the controller 212 is not limited thereto.

The wireless transmitter 213 processes an output signal from the controller 212 to wirelessly control a lock or release signal of a gas shutoff valve, a signal for a lock reservation time, or a current time signal in a wireless form. Send to). The wireless transmitter 213 may be a general IR transmitter, an RF transmitter, or an equivalent thereof, but the type of the wireless transmitter 213 is not limited thereto.

The power supply unit 214 serves to supply predetermined power for driving the input unit 211, the control unit 212, the wireless transmitter 213, the clock signal unit 215, and the storage unit 216.

The clock signal unit 215 outputs a clock signal so that the control unit 212 can perform stepwise control and arithmetic processing in synchronization with a predetermined clock signal.

The storage unit 216 stores a predetermined program or logic sequence required by the control unit 212, and also stores various data, variables, and the like. The storage unit 216 may be any one selected from a conventional RAM, a ROM, a flash memory, or an equivalent thereof, but is not limited thereto.

Subsequently, the wireless valve controller 220 receives a wireless signal from the wireless transmitter 210 and immediately locks or releases the gas shutoff valve or serves to lock the reservation time. This will be described in more detail.

The wireless valve controller 220 includes a wireless receiver 221, a gas sensor 222, an input unit 223, a controller 224, a valve driver 225, an alarm unit 226, and a local display unit. 227, a power supply unit 228, a clock signal unit 229, and a storage unit 230.

The wireless receiver 221 wirelessly receives a lock signal or a release signal, a lock reservation time signal, and a current time signal of the gas shutoff valve by the wireless transmitter 210, and outputs the same to the controller 224. . The wireless receiver 221 may be a general IR receiver, an RF receiver, or an equivalent thereof, but the type of the wireless receiver 221 is not limited thereto.

The gas sensor 222 detects whether the gas leaks, converts it into an electrical signal, and outputs the converted signal to the controller 224. The gas sensor 222 is installed around a gas pipe, a gas hose, or a gas machine, so that the leaked gas can be detected quickly and accurately. The gas sensor 222 may be any one selected from a solid electrolyte gas sensor, a catalytic combustion gas sensor, an n-type semiconductor sensor, a p-type semiconductor sensor, or an equivalent thereof, but is not limited thereto.

The input unit 223 serves to input a real time locking or releasing command of the gas shutoff valve, or input a lock reservation time or a current time of the gas shutoff valve, and converts it into an electrical signal and outputs it to the control unit 224. . The input unit 223 may be a conventional keypad method, a touch panel method, or an equivalent method, but is not limited thereto. Therefore, the present invention is not only controlled by the wireless valve controller 220 by the wireless transmitter 210, but also by the input unit 223 of the wireless valve controller 220 itself.

The control unit 224 processes the predetermined signals input from the gas sensor 222 and the input unit 223 and outputs them to the valve driving unit 225, the alarm unit 226, and the local display unit 227 to perform a predetermined control signal. It plays a role. Of course, the controller 224 processes the signal of the radio transmitter 210 received from the radio receiver 221, and then outputs the signal to the valve driver 225 and the local display unit 227. The controller 224 may be any one selected from a general microprocessor, a programmable logic controller, or an equivalent thereof, but the type of the controller 224 is not limited thereto.

The valve driving unit 225 actually operates the gas shutoff valve so that the gas shutoff valve is blocked or released. Here, the gas shutoff valve may protrude to one side of the gas pipe as in the prior art, and may be manually locked and released, or may be installed and locked only in an electronic manner inside the gas pipe. Of course, the valve driving unit 225 may be installed both in the protruding to one side of the gas pipe as described above and installed in the gas pipe. In addition, the valve driver 225 may be a conventional relay and solenoid circuit, but the structure of the valve driver 225 is not limited thereto. The valve driver 225 immediately locks or releases the gas shutoff valve by the output signal of the controller 224, or locks the gas shutoff valve at a scheduled time. That is, the valve driving unit 225 is operated unconditionally when the gas is exposed to lock the gas shutoff valve, and also of the input unit 211 installed in the wireless transmitter 210 or the input unit 223 installed in the wireless valve controller 220. Operate (block or release) by key operation.

The alarm unit 226 serves to warn the leak state of the gas by the output signal of the control unit 224. Of course, the alarm unit 226 operates by outputting a predetermined signal from the controller 224 when the gas sensor 222 detects a gas leak state. The alarm unit 226 may be implemented by a conventional buzzer, a speaker, a voice integrated circuit, and the like, but is not limited thereto.

The local display unit 227 is operated by the output signal of the control unit 224, which displays the current time or the lock reservation time of the gas valve. Here, the lock reservation time of the gas valve displayed on the local display unit 227 may be a reservation time received from the input unit 211 of the wireless transmitter 210 or the input unit 223 of the wireless valve controller 220. The local display unit 227 may be a conventional LCD (FND, LED) or its equivalent, but is not limited thereto.

The power supply unit 228 includes a gas sensor 222, an input unit 223, a controller 224, a valve driver 225, an alarm unit 226, a local display unit 227, a clock signal unit 229, and a storage unit. It serves to supply predetermined power to the 230. The power supply unit 228 may be an AC-DC converter or a conventional rechargeable battery that converts AC power into DC and drops a voltage, but the type is not limited thereto. When the power supply unit 228 is a rechargeable battery, the gas shutoff device 200 according to the present invention has an advantage of operating even in a power failure.

The clock signal unit 229 outputs a clock signal so that the control unit 224 can perform control and arithmetic processing step by step in synchronization with a predetermined clock signal.

The storage unit 230 stores a predetermined program or logic sequence required by the control unit 224, and also stores various data, variables, and the like. Of course, as described above, the storage 230 may store a lock reservation time of the gas shutoff valve. The storage unit 230 may be any one selected from a general RAM, a ROM, a flash memory, or an equivalent thereof, but is not limited thereto.

Although not shown in the drawing, the controller 224 may further include a fan driving unit for driving the fan. The fan driving unit serves to discharge the gas to the outside by operating the fan by the output signal of the control unit 224. The fan drive unit may also be a general relay or an equivalent thereof for connecting the fan to a power source, but the type is not limited thereto. In addition, the fan driving unit also operates by outputting a predetermined control signal to the control unit 224 only when the gas sensor 222 detects a gas leak state. The ventilator and the ventilator driving unit may be installed at a position spaced apart from the gas pipe, the gas hose, and the gas apparatus, so that an electrical spark that may occur during operation of the ventilator or the fan driving unit may not be provided toward the leaking gas.

In this way, the gas shutoff device 200 according to the present invention immediately operates the gas shutoff valve (gas valve shutoff) when a gas leaks, and alarms the alarm at the same time. Should be prevented beforehand. In addition, the gas shutoff device 200 according to the present invention can be scheduled in advance by the user the gas lock time, it is possible to more proactively prevent safety accidents due to gas leakage. Moreover, the gas shutoff device 200 according to the present invention can simply control the wireless valve controller 220 through the wireless transmitter 210, so that its use is extremely convenient.

3 is a block diagram showing the configuration of a gas shutoff apparatus according to another embodiment of the present invention.

As shown, the gas shutoff apparatus 300 according to another embodiment of the present invention also includes a wireless transmitter 310 and a wireless valve controller 320.

The wireless transmitter 310 converts the lock or release signal of the gas shutoff valve by the user input and the lock reservation time signal into a wireless signal, and transmits the converted signal to the wireless valve controller 320, and transmits the current wireless signal through the remote display unit 317. It serves to display various states of the valve controller 320. That is, although reference numeral 310 is referred to as a radio transmitter, in practice, reference numeral 310 is a radio transceiver. However, to avoid confusion in terminology, the following will continue to refer to radio transmitters. This is explained in more detail.

The wireless transmitter 310 includes an input unit 311, a control unit 312, a wireless transceiver 313, a power supply unit 314, a clock signal unit 315, a storage unit 316, and a remote display unit. 317.

The input unit 311 converts an electric signal into a control unit 312 when a user inputs a real time locking or releasing command of the gas shutoff valve, inputs a lock reservation time of the gas shutoff valve, or inputs a current time. Do it. The input unit 311 may be a conventional keypad method, a touch panel method, or an equivalent method, but is not limited thereto.

The controller 312 processes the output signal by the input unit 311, converts it into a predetermined signal and outputs the converted signal to the wireless transceiver 313. In addition, the controller 312 converts a state of the wireless valve controller 320 transmitted from the wireless transceiver 313, that is, a locked state, a released state, and a lock reservation time of the gas shutoff valve, into a predetermined electrical signal, thereby remotely. It serves to output to the display unit 317. The controller 312 may be any one selected from a general microprocessor, a programmable logic controller, or an equivalent thereof, and the type of the controller 312 is not limited thereto.

The wireless transmission / reception unit 313 processes the output signal from the control unit 312, and wirelessly transmits a signal for a lock or release signal, a lock reservation time, or a current time signal of the gas shutoff valve in a wireless form. To) In addition, the wireless transceiver 313 receives various states from the wireless valve controller 320, that is, a locked state and a released state of the gas shutoff valve, lock reservation time information, and the like, and outputs them to the controller 312 in reverse. It also plays a role. The wireless transceiver 313 may be a general IR transceiver, an RF transceiver, or an equivalent thereof, but the type of the wireless transceiver 313 is not limited thereto.

The power supply unit 314 supplies predetermined power for driving the input unit 311, the control unit 312, the wireless transmitter 313, the clock signal unit 315, the storage unit 316, and the remote display unit 317. It plays a role.

The clock signal unit 315 outputs a clock signal so that the controller 312 can perform a control and arithmetic processing step by step in synchronization with a predetermined clock signal.

The storage unit 316 stores a predetermined program or logic sequence required by the control unit 312, and also stores various data, variables, and the like. The storage unit 316 may be any one selected from a conventional RAM, a ROM, a flash memory, or an equivalent thereof, but is not limited thereto.

Subsequently, the wireless valve controller 320 receives a wireless signal from the wireless transmitter 310 to immediately lock or unlock the gas shutoff valve or to lock the gas shutoff valve at a scheduled time, and also to lock or lock the current gas shutoff valve. It plays a role of wirelessly transmitting to the wireless transmitter 310 in reverse of the released state and the lock reservation time. This will be described in more detail.

The wireless valve controller 320 includes a wireless transceiver 321, a gas sensor 322, an input unit 323, a controller 324, a valve driver 325, an alarm unit 326, and a local controller. The display unit 327 includes a power supply unit 328, a clock signal unit 329, and a storage unit 330.

The wireless transceiver 321 wirelessly receives the lock or release of the gas shutoff valve and the lock reservation time signal by the wireless transmitter 310, and outputs the signal to the controller 324. In addition, the wireless transceiver 321 also transmits the lock or release state and the lock reservation time information of the gas shutoff valve obtained from the controller 324 to the wireless transmitter 310 in reverse. The wireless transceiver 321 may be a general IR transceiver, an RF transceiver, or an equivalent thereof, but the type of the wireless transceiver 321 is not limited thereto.

The gas sensor 322 detects a gas leak and converts it into an electrical signal and outputs it to the controller 324. The gas sensor 322 is installed around a gas pipe, a gas hose, or a gas machine, so that the leaked gas can be detected quickly and accurately. The gas sensor 322 may be any one selected from a solid electrolyte gas sensor, a catalytic combustion gas sensor, an n-type semiconductor sensor, a p-type semiconductor sensor, or an equivalent thereof, but is not limited thereto.

The input unit 323 inputs a real time locking or releasing command of the gas shutoff valve, inputs a lock reservation time of the gas shutoff valve, or inputs a current time, and converts it into an electrical signal and outputs it to the control unit 324. Play a role. The input unit 323 may be a conventional keypad method, a touch panel method, or an equivalent method, but is not limited thereto. Thus, the present invention is not only controlled by the wireless valve controller 320 by the wireless transmitter 310, but also by the wireless valve controller 320 itself.

The controller 324 processes the predetermined signals input from the gas sensor 322 and the input unit 323 and outputs them to the valve driving unit 325, the alarm unit 326, and the local display unit 327 to perform a predetermined control signal. It plays a role. Of course, the controller 324 also processes the signal of the radio transmitter 310 received from the radio transceiver 321, and then outputs the signal to the valve driver 325 and the local display unit 327 again. In addition, the controller 324 outputs the lock and release state of the current gas shutoff valve and the lock reservation time information to the wireless transceiver 321 at the request of the radio transmitter 310. The controller 324 may be any one selected from a general microprocessor, a programmable logic controller, or an equivalent thereof, but the type of the controller 324 is not limited thereto.

The valve driving unit 325 actually operates the gas shutoff valve so that the gas shutoff valve is blocked or released. Here, the gas shutoff valve may protrude to one side of the gas pipe as in the prior art, and may be manually locked and released, or may be installed and locked only in an electronic manner inside the gas pipe. Of course, the valve driving unit 325 can be installed in both the protruding to one side of the gas pipe as described above and installed in the gas pipe. In addition, the valve driver 325 may be a conventional relay and solenoid circuit, but the structure of the valve driver 325 is not limited thereto. The valve driver 325 immediately locks or releases the gas shutoff valve by the output signal of the controller 324, or locks the gas shutoff valve at a reserved time. That is, the valve driving unit 325 is unconditionally operated when the gas is exposed (gas blocking), and is also input by the input unit 311 installed in the wireless transmitter 310 or the input unit 323 installed in the wireless valve controller 320. Act on command (lock or unlock gas shutoff valve).

The alarm unit 326 serves to warn the leak state of the gas by the output signal of the control unit 324. Of course, the alarm unit 326 operates when the gas sensor 322 detects a gas leak state. The alarm unit 326 may be implemented by a conventional buzzer, a speaker, a voice integrated circuit, and the like, but is not limited thereto.

The local display unit 327 is operated by an output signal of the control unit 324, which displays the current time, the state (lock or release) of the gas shutoff valve, or the lock reservation time of the gas valve. Here, the lock reservation time of the gas shutoff valve displayed on the local display unit 327 may be a reservation time received from the input unit 311 of the wireless transmitter 310 or the input unit 323 of the wireless valve controller 320. The local display unit 327 may be a conventional LCD (FND, LED) or its equivalent, but is not limited thereto.

The power supply unit 328 may include a gas sensor 322, an input unit 323, a control unit 324, a valve driver 325, an alarm unit 326, a local display unit 327, a clock signal unit 329, and a storage unit. 330 serves to supply a predetermined power. The power supply unit 328 may be an AC-DC converter or a conventional rechargeable battery that converts AC power into DC and simultaneously drops a voltage, but the type is not limited thereto. When the power supply unit 328 is a rechargeable battery, the gas shutoff device 300 according to the present invention has an advantage of operating even in a power failure.

The clock signal unit 329 outputs a clock signal so that the control unit 324 can perform stepwise control and arithmetic processing in synchronization with a predetermined clock signal.

The storage unit 330 stores a predetermined program or logic sequence required by the control unit 324, and also stores various data, variables, and the like. Of course, as described above, the storage unit 330 may store a lock reservation time of the gas shutoff valve. The storage unit 330 may be any one selected from a general RAM, a ROM, a flash memory, or an equivalent thereof, but is not limited thereto.

On the other hand, although not shown in the figure, the control unit 324 may be further connected to the fan drive unit for driving the fan. The fan driving unit serves to discharge the gas to the outside by operating the fan by the output signal of the control unit 324. The fan drive unit may also be a general relay or an equivalent thereof for connecting the fan to a power source, but the type is not limited thereto. In addition, the fan driving unit also operates by outputting a predetermined control signal to the control unit 324 only when the gas sensor 322 detects a gas leak state. The ventilator and the ventilator driving unit may be installed at a position spaced apart from the gas pipe, the gas hose, and the gas apparatus, so that an electrical spark that may occur during operation of the ventilator or the fan driving unit may not be provided toward the leaking gas.

In this way, the gas shutoff device 300 according to the present invention immediately operates the gas shutoff valve and alarms when a gas leaks, and also operates a fan to prevent safety accidents due to gas leakage. . In addition, the gas shutoff device 300 according to the present invention visually display the locked state or the unlocked state of the gas shutoff valve, so that the user can easily know the current state of the gas shutoff valve, the user in advance the gas lock time By making a reservation, safety accidents caused by gas leaks can be prevented more actively. Moreover, the gas shutoff device 300 according to the present invention can simply control the wireless valve controller 320 through the wireless transmitter 310, so that its use is extremely convenient. In addition, the gas shutoff device 300 according to the present invention can check the lock state, the release state, and the lock time reservation state of the current gas shutoff valve through the remote display unit 317 of the wireless transmitter 310. Does not have to come to the wireless valve controller 320 one by one and check its status.

4A is an example of the circuit diagram which shows the structure of the radio transmitter in FIG. 3, and FIG. 4B is an example of the circuit diagram which shows the structure of the radio valve controller in FIG.

This circuit diagram is only one example for the implementation of the present invention, and the present invention is not limited to the actual various elements and circuit configurations shown in the circuit diagram.

First, as shown in FIG. 4A, the wireless transceiver 310 includes an input unit 311, a controller 312, a wireless transceiver 313, a power supply unit 314, a clock signal unit 315, a storage unit 316, and the like. It consists of a remote display unit 317.

The input unit 311 may be actually composed of a plurality of control buttons or a keypad as shown.

The controller 312 may be a microprocessor U3 to which a predetermined program is input, and the input unit 311 is directly electrically connected thereto. Accordingly, various commands are directly transmitted to the control unit 312 by the key operation of the input unit 311. The controller 312 may be connected to a plurality of light emitting diodes LD1 and LD2 so as to display its operating state.

The wireless transceiver 313 may be composed of an IR transmitter / receiver 313a and an RF transmitter / receiver 313b. Of course, the IR transmitter / receiver 313a includes an IR receiver chip U2 and an IR transmitter diode IR, and the RF transmitter / receiver 313b includes a plurality of transmit / receive processing chips U4, U5, U6, U7), antenna ANT1, multiple capacitors C1, C2, C3, C4, C6, C7, C8, C10, C11, C12, C13, multiple inductors (L1, L2, L3), multiple The resistors R5 and R6 and the crystal oscillator X1 for operating the chip U6 are provided. In addition, the wireless transceiver 313 is electrically connected to the controller 312. In this way, the present invention is the output signal by the control unit 312 is externally transmitted by the IR communication and RF communication method through the wireless transmission and reception unit 313, as well as the wireless transmission and reception by the IR communication and RF communication method from the outside It can be seen that it can be reversely received by the control unit 312 via the unit 313.

The power supply unit 314 includes a battery, which is connected to the input unit 311, the controller 312, the wireless transceiver 313, the clock signal unit 315, the storage unit 316, and the remote display unit 317. Can supply DC power.

The clock signal unit 315 is electrically connected to the control unit 312 to output a predetermined clock signal to the control unit 312.

The storage unit 316 is composed of one memory chip U8 and a plurality of resistors R10 and R11, which are connected to the control unit 312 to record, store, and transmit and receive predetermined information.

The remote display unit 317 is connected to the control unit 312 and includes one display window U1, a plurality of resistors R2, R3, R4, and R74, and a plurality of transistors Q1, Q2, Q3, and Q4. consist of. The remote display unit 317 displays the door open state or the door closed state received from the wireless door opener 320 as described above.

Next, as shown in FIG. 4B, the wireless valve controller 320 includes a wireless transceiver 321, a gas sensor 322, an input unit 323, a controller 324, a valve driver 325, And an alarm unit 326, a local display unit 327, a power supply unit 328, a clock signal unit 329, and a storage unit 330.

The wireless transceiver 321 includes an IR transmitter / receiver 321a and an RF transmitter / receiver 321b. Of course, the IR transmitter / receiver 321a includes an IR receiver chip U2 and an IR transmitter diode IR, and the RF transmitter / receiver 321b includes a plurality of transmitter / receive processing chips U4, U5, U6, U7), antenna ANT1, multiple capacitors C1, C2, C3, C4, C6, C7, C8, C10, C11, C12, C13, multiple inductors (L1, L2, L3), multiple The resistors R5 and R6 and the crystal oscillator X1 for operating the chip U6 are provided. In addition, the wireless transceiver 321 is electrically connected to the controller 324. In this way, the present invention is the output signal by the control unit 324 is externally transmitted by the IR communication and RF communication method through the wireless transmission and reception unit 321, as well as the wireless transmission and reception by the IR communication and RF communication method from the outside It can be seen that the unit 321 and the control unit 324 can be received.

The gas sensor 322 includes a solid electrolyte gas sensor, a catalytic combustion gas sensor, an n-type semiconductor sensor, or a p-type semiconductor sensor S and a plurality of resistors R16, R21, and R22 for driving the same. Of course, the gas sensor 322 is connected to the control unit 324, thereby outputting a predetermined signal to the control unit 324 when gas is detected.

The input unit 323 includes a plurality of switches SW3 to SW10, which are directly connected to the control unit 324. Accordingly, the user may directly input various set values from the wireless valve controller 320 through the plurality of switches SW3 to SW10 provided in the input unit 323.

The controller 324 may be a microprocessor U3 to which a predetermined program is input, to which the wireless transceiver 321 is directly electrically connected. The control unit 321 may be connected to a plurality of light emitting diodes LD1 and LD2 and the like to display its operating state.

The valve driver 325 includes a relay RL1, RL2, RL3 and a solenoid circuit, one side of which is connected to a power source. Of course, a resistor and a transistor are connected to operate the relays RL1, RL2, and RL3, and the controller 324 directly controls the base current of the transistor. Herein, the controller 324 may determine whether the current gas shutoff valve is locked or released according to the operation of the valve driving unit 325, and may output the same to the local display unit 327.

The alarm unit 326 may include, for example, a buzzer BZ1, resistors R9 and R12, and a transistor Q5, which may be connected to the control unit 324 to provide a warning sound to a user.

The local display unit 327 is connected to the control unit 324, and displays one display window U1, a plurality of resistors R2, R3, R4, and R74, and a plurality of transistors Q1, Q2, Q3, and Q4. Include. Of course, the plurality of transistors Q1, Q2, Q3, and Q4 are naturally turned on / off by the control signal of the controller 324. As described above, the local display unit 327 displays a state (blocking or releasing) of the gas shutoff valve, a reservation time, or a current time.

The power supply unit 328 is a DC supply circuit including a battery, a plurality of capacitors, a three-terminal regulator, and the like. The power supply unit 328 includes a wireless transceiver 321, a gas sensor 322, an input unit 323, a controller 324, a valve driver 325, an alarm unit 326, and a local display unit. 327 and a DC power supply to the clock signal unit 329 and the storage unit 330.

The clock signal unit 329 is electrically connected to the control unit 324 to output a predetermined clock signal.

The storage unit 330 may include one memory chip U8 and a plurality of resistors R10 and R11, which may be connected to the controller 324 to record, store, or communicate predetermined information. have.

As described above, the wireless transceiver circuit 310 and the wireless valve control circuit 320 disclosed in FIGS. 4A and 4B are merely examples for the implementation of the present invention, and the present invention is not limited to these specific circuits.

5 is a block diagram illustrating a gas shutoff apparatus and a control method thereof according to another embodiment of the present invention.

To this end, the first wireless transceiver 310a and the first wireless gas valve controller 320a, the second wireless transceiver 310b and the second wireless gas valve controller 320b, the third wireless transceiver 310c and the third wireless gas It is assumed that the valve controllers 320c are provided respectively. In addition, the first wireless transceiver 310a may include a first wireless gas valve controller 320a, the second wireless transceiver 310b may include a second wireless gas valve controller 320b, and the third wireless transceiver 310c may include a third wireless transceiver 310c. It is assumed that it is initially set to enable wireless communication with the wireless gas valve controller 320c.

First, in order to control the first, second and third wireless gas valve controllers 320a, 320b, and 320c with the first wireless transceiver 310a, the second wireless transceiver 310b is sequentially turned toward the first wireless transceiver 310a. ) Transmits a wireless signal, and then causes the third wireless transceiver 310c to transmit a wireless signal.

For example, when a predetermined wireless signal for controlling the second wireless gas valve controller 320b is transmitted to the first wireless transceiver 310a by the second wireless transceiver 310b, the wireless signal may be transmitted to the second wireless transceiver 310a. All the information for controlling the second wireless gas valve controller 320b as well as the unique ID information of 310b are transmitted to the first wireless transceiver 310a at one time. (1) Of course, the second wireless transceiver (transmitted in this manner) The information of 310b) is stored in the storage unit. Furthermore, the information stored in this way may be defined as, for example, a second key in the input unit of the first wireless transceiver 310a and may also be called by a second key.

In addition, when a predetermined wireless signal for controlling the third wireless gas valve controller 320c is transmitted to the first wireless transceiver 310a by the third wireless transceiver 310c, the third wireless transceiver 310c may be included in the wireless signal. All information for controlling the third wireless gas valve controller 320c, as well as the unique ID information of the, is transmitted to the first wireless transceiver 310a at one time. (1) Of course, the third wireless transceiver 310c thus transmitted is transmitted. Information is stored in the storage. Furthermore, the information stored in this way may be defined as, for example, a third key among the input units of the first wireless transceiver 310a, and may also be called by a third key.

Subsequently, the first wireless transceiver may control the first wireless gas valve controller 320a in the above-described manner, and the second wireless gas valve controller 320b may control the call after the second key of the input unit is called. That is, when the first wireless transceiver presses the second key of the input unit, the information of the second wireless transceiver stored in the storage unit is loaded as described above, so that the first wireless transceiver 310a operates as the second wireless transceiver 310b. . That is, the second wireless gas valve controller 320b can be controlled by the first wireless transceiver 310a. (2) In addition, the third wireless gas valve controller 320c controls after calling the third key of the input unit. can do. That is, when the first wireless transceiver 310a presses the third key of the input unit, the information of the third wireless transceiver 310c stored in the storage unit is loaded as described above, so that the first wireless transceiver 310a is the third wireless transceiver. It works like 310c. That is, the third wireless gas valve controller 320c may be controlled by the first wireless transceiver 310a.

Here, the number of the wireless transceiver and the wireless gas valve controller is only one example and does not limit the present invention to this number. In addition, it is obvious that the number of wireless gas valve controllers that the wireless transceiver can control can be increased by the capacity of the storage unit.

To this end, the first wireless transceiver 310a and the first wireless gas valve controller 320a, the second wireless transceiver 310b and the second wireless gas valve controller 320b, the third wireless transceiver 310c and the third wireless gas It is assumed that the valve controllers 320c are provided respectively. In addition, the first wireless transceiver 310a may include a first wireless gas valve controller 320a, the second wireless transceiver 310b may include a second wireless gas valve controller 320b, and the third wireless transceiver 310c may include a third wireless transceiver 310c. It is assumed that it is initially set to enable wireless communication with the wireless gas valve controller 320c.

First, in order to control the first, second and third wireless gas valve controllers 320a, 320b, and 320c with the first wireless transceiver 310a, the second wireless transceiver 310b is sequentially turned toward the first wireless transceiver 310a. ) Transmits a wireless signal, and then causes the third wireless transceiver 310c to transmit a wireless signal.

For example, when a predetermined wireless signal for controlling the second wireless gas valve controller 320b is transmitted to the first wireless transceiver 310a by the second wireless transceiver 310b, the wireless signal may be transmitted to the second wireless transceiver 310a. All the information for controlling the second wireless gas valve controller 320b as well as the unique ID information of 310b are transmitted to the first wireless transceiver 310a at one time. (1) Of course, the second wireless transceiver (transmitted in this manner) The information of 310b) is stored in the storage unit. Furthermore, the information stored in this way may be defined as, for example, a second key in the input unit of the first wireless transceiver 310a and may also be called by a second key.

In addition, when a predetermined wireless signal for controlling the third wireless gas valve controller 320c is transmitted to the first wireless transceiver 310a by the third wireless transceiver 310c, the third wireless transceiver 310c may be included in the wireless signal. All information for controlling the third wireless gas valve controller 320c, as well as the unique ID information of the, is transmitted to the first wireless transceiver 310a at one time. (1) Of course, the third wireless transceiver 310c thus transmitted is transmitted. Information is stored in the storage. Furthermore, the information stored in this way may be defined as, for example, a third key among the input units of the first wireless transceiver 310a, and may also be called by a third key.

Subsequently, the first wireless transceiver may control the first wireless gas valve controller 320a in the above-described manner, and the second wireless gas valve controller 320b may control the call after the second key of the input unit is called. That is, when the first wireless transceiver presses the second key of the input unit, the information of the second wireless transceiver stored in the storage unit is loaded as described above, so that the first wireless transceiver 310a operates as the second wireless transceiver 310b. . That is, the second wireless gas valve controller 320b can be controlled by the first wireless transceiver 310a. (2) In addition, the third wireless gas valve controller 320c controls after calling the third key of the input unit. can do. That is, when the first wireless transceiver 310a presses the third key of the input unit, the information of the third wireless transceiver 310c stored in the storage unit is loaded as described above, so that the first wireless transceiver 310a is the third wireless transceiver. It works like 310c. That is, the third wireless gas valve controller 320c may be controlled by the first wireless transceiver 310a.

Here, the number of the wireless transceiver and the wireless gas valve controller is only one example and does not limit the present invention to this number. In addition, it is obvious that the number of wireless gas valve controllers that the wireless transceiver can control can be increased by the capacity of the storage unit.

As described above, the gas shutoff device according to the present invention detects a gas leak and not only operates the gas shutoff valve immediately but also outputs a warning sound to the user, and also immediately operates a ventilator, thereby causing a safety accident due to the gas leak. Can be prevented in advance. In addition, the present invention by operating the gas shutoff valve automatically at a predetermined time, it is possible to prevent the gas leakage due to a user mistake or malfunction of the gas equipment.

In addition, the gas shutoff device according to the present invention may operate the gas shutoff valve in real time through the wireless transmission unit, or may operate the gas shutoff valve at a scheduled time. Of course, even in this case, when the gas leak is detected, the gas shutoff valve is immediately operated, a warning sound is output to the user, and the ventilator is immediately operated to prevent a safety accident due to the leakage of the water.

In addition, the gas shutoff device according to the present invention can not only check the state of the entire wireless valve controller in real time through the wireless transmitter, but also check the operation time of the gas valve, so that the user does not need to check the wireless valve controller. . Of course, even in this case, when the gas leak is detected, the gas shutoff valve is immediately operated, a warning sound is output to the user, and the ventilator is immediately operated to prevent a safety accident due to the leakage of the water.

In addition, the gas shutoff apparatus according to the present invention designates one radio transmitter as a main radio transmitter when there are a plurality of radio transmitters and a wireless valve controller, and wirelessly transmits and stores radio ID information of another radio transmitter, There is an effect that can control a plurality of radio valve controller with one main radio transmitter.

What has been described above is just one embodiment for implementing the gas blocking device according to the present invention, the present invention is not limited to the above embodiment, as claimed in the utility model registration claims below of the present invention Without departing from the gist, any person having ordinary knowledge in the field to which the present invention belongs will have a technical spirit of the present invention to the extent that various modifications can be made.

Claims (9)

A gas sensor that detects gas leakage and outputs it as an electrical signal; An input unit for inputting a real-time lock or release command of the gas shutoff valve or inputting a lock reservation time of the gas shutoff valve as an electrical signal; A control unit which outputs a predetermined electrical signal by controlling a process when a gas detection signal is input by the gas sensor or a predetermined electrical signal is input from the input unit; A valve driving unit which immediately locks or releases the gas shutoff valve by the output signal of the controller, or locks at a scheduled time; An alarm unit warning a gas leak state by an output signal of the control unit; And a local display unit which displays the current time or the lock reservation time of the gas valve by the output signal of the controller. A radio transmitter for converting the lock or release signal of the gas shutoff valve by a user input, and converting the lock reservation time signal into a radio signal and outputting the radio signal; And a wireless valve controller configured to receive a wireless signal from the wireless transmitter to immediately lock or release the gas shutoff valve or to lock the gas shutoff valve at a scheduled time. The method of claim 2, wherein the wireless transmitter is An input unit for inputting a locking or unlocking or locking reservation time of the gas shutoff valve by a user; A control unit which processes a signal by the input unit and outputs a predetermined control signal; And a wireless transmitter configured to convert the lock or release of the gas shutoff valve and the lock reservation time into a predetermined electrical signal and output the predetermined electrical signal by the output signal of the controller. 3. The wireless valve controller of claim 2 wherein A wireless receiver which wirelessly receives a lock or release of a gas shutoff valve and a lock reservation time signal by the wireless transmitter; A gas sensor that detects gas leakage and outputs it as an electrical signal; An input unit for inputting a real-time lock or release command of the gas shutoff valve or inputting a lock reservation time of the gas shutoff valve as an electrical signal; A control unit for controlling and outputting a predetermined electrical signal when a predetermined signal is input from the wireless receiver, a gas sensing signal is input by the gas sensor, or a predetermined electrical signal is input from the input unit; A valve driver which locks or releases the gas shutoff valve in real time or locks the gas shutoff valve at a scheduled time by an output signal of the controller; An alarm unit warning a gas leak state by an output signal of the control unit; And a local display unit which displays the current time or the lock reservation time of the gas valve by the output signal of the controller. The method of claim 2, wherein the wireless transmitter is An input unit for inputting a real time locking or releasing of the gas shutoff valve and a reservation time of locking by a user, A control unit which processes a signal by the input unit and outputs a predetermined control signal; A wireless transceiver for converting a lock or release of the gas shutoff valve and a lock reservation time into a predetermined electrical signal by an output signal of the controller and outputting the predetermined electrical signal; A remote display unit displaying a lock or release setting of the gas shutoff valve by a user and a lock reservation time by an output signal of the controller; The wireless transceiver may wirelessly receive a lock or release state and a lock reservation time state of the gas shutoff valve from the wireless valve controller and output the wireless shutoff valve of the wireless valve controller received from the wireless transceiver. Gas blocking device characterized in that for displaying the status, the lock reservation time status via the remote display. 6. The wireless valve controller of claim 5 wherein A wireless transmission / reception unit wirelessly receiving a lock or release / locking reservation time signal of a real-time gas shutoff valve by the wireless transmitter; A gas sensor that detects gas leakage and outputs it as an electrical signal; An input unit for inputting a real-time lock or release command of the gas shutoff valve or inputting a lock reservation time of the gas shutoff valve as an electrical signal; A control unit for controlling and outputting a predetermined electrical signal when a predetermined signal is input from the wireless receiver, a gas sensing signal is input by the gas sensor, or a predetermined electrical signal is input from the input unit; A valve driver which locks or releases the gas shutoff valve in real time or locks the gas shutoff valve at a scheduled time by an output signal of the controller; An alarm unit warning a gas leak state by an output signal of the control unit; It includes a local display for displaying the current time or the lock reservation time of the gas valve by the output signal of the control unit, The control unit is a gas shutoff device, characterized in that for wirelessly transmitting the lock or release state and the lock reservation time state of the gas shutoff valve to the wireless transmitter using the wireless transceiver. The gas shutoff device according to claim 1 or 4, wherein the alarm unit is any one selected from a buzzer, a speaker, and a voice integrated circuit. 3. The gas shutoff device of claim 2, wherein the wireless transmitter and the wireless valve controller communicate by IR or RF communication. The wireless transmitter and the wireless valve controller of claim 6, wherein a plurality of radio transmitters and a wireless valve controller are provided, and after designating one of the plurality of radio transmitters as a main radio transmitter, transmitting radio ID information of a plurality of other radio transmitters to the main radio transmitter. At the same time, by assigning and storing each key number of the main radio transmitter, the gas shut off device characterized in that to control all of the plurality of radio valve controller by the main radio transmitter.

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