KR20020056850A - An automatic circuit breaker for a gas balve and the source of electric power in opening and closing a door - Google Patents

Abstract

PURPOSE: An apparatus for intercepting automatically a gas valve and a power source in an opening/shutting process of a door is provided to perform bidirectional communication among a lock control portion, a gas valve control portion, and a multi-tap control portion by using a microprocessor. CONSTITUTION: A lock control portion(20) detects an opening/shutting state of a lock and transmits control data for intercepting a gas valve(40) and a multi-tap(80) as a power source. A gas valve control portion(30) receives the control data from the lock control portion(20), operates the gas valve(40) to open or shut a gas valve, and transmits state data of the gas valve(40) to the lock control portion(20). A multi-tap control portion(50) receives the control data from the lock control portion(20), controls power states of the multi-tap(80), and transmits the control data to the lock control portion(20). The lock control portion(20) receives the control data from the gas valve control portion(30) and the multi-tap control portion(50) and outputs the control data as buzzer and voice.

Description

An automatic circuit breaker for a gas balve and the source of electric power in opening and closing a door}

According to the present invention, when the gas is supplied to a gas stove, a gas boiler or the like, or when various electronic devices are operated, when the user forgets the locking operation of the gas valve or goes out without turning off the electronic device due to the carelessness of the user, the door lock is locked. The present invention relates to a gas valve and an automatic power shut-off device for opening and closing a door to automatically shut off power to a gas valve and an electronic device according to a state.

In more detail the gas valve and automatic power shut-off device when opening and closing the door according to the present invention between the lock control unit for detecting the opening and closing state of the door lock, the gas valve control unit for controlling the gas valve and the power control unit for controlling the power of the electronic device By making bi-directional communication, the user can check the opening and closing state by voice whenever the gas valve and the electronic device are turned on and off, and also prevent the device from operating if the lock is locked while there is a person indoors. It is designed to be more precise, stable and reliable.

In general, as the society develops, gas accidents that occur along with convenience of life are mainly caused by carelessness of the user.A typical example of this is due to carelessness in the state where people put food and food in the microwave and burn gas. In such a situation, not only does it cause a loss of valuable lives and property in direct connection with the fire, but also many inconveniences such as having to check it several times due to anxiety about whether the gas is always shut off when going out. It is.

In addition, when the user goes out without inadvertently turning off the power in the state of operating various electronic devices such as a TV or electric stove will act as a cause of energy loss and fire due to leakage current.

Accordingly, the applicant of the gas valve and the electric device according to the lock state of the door lock when the user goes out due to the carelessness of the user while operating the gas device or the electric device as in Patent No. 312026 (Registration Date 2001.10.04) Gas valves and automatic shutoff devices have been proposed to open and close doors to automatically shut off power.

However, in the Applicant's prior patent registration No. 312026, the actual user is unidirectional communication between the lock control unit for detecting the open / closed state of the gate lock, the gas valve control unit for controlling the gas valve and the multi-tap control unit for controlling the power of the electronic device. When the lock is opened or closed, there is a problem in that the gas valve is actually closed and the power supply of the power strip is not checked. Even if there is a person in the room and the door is locked while the gas device and the electric device are in use, the system is closed. There is a problem that shuts off the gas and power by operating.

The present invention wirelessly bidirectional communication using a microprocessor between the lock control unit for detecting the open and closed state of the door lock, the gas valve control unit for controlling the gas valve and the multi-tap control unit for controlling the power supply of the electronic device to solve the above problems The technical problem is that the user can check the opening and closing state by a voice every time the power supply and closing of the gas valve and the electronic device to be made.

In addition, the present invention by installing an infrared sensor for detecting the presence or absence of a person in the room to lock the lock in the presence of a person in the room so that the device does not operate, the opening and closing of the lock and gas valve to detect By installing an open / close detection sensor that enables the microprocessor to accurately recognize the open / closed state of the current lock and gas valve, the information of the gas valve change, ie open to closed or open to closed, is voiced to the user as the lock is opened or closed. It is a technical problem to be able to raise more precise, stable, and reliable by sending out.

The present invention provides a device for automatically shutting off the power of the gas valve 48 and the power strip 80 which are opened and closed by the gas valve driving motor 40 when opening and closing the lock 10 installed in the door. The lock control unit 20 for wirelessly transmitting control information for blocking the gas valve 40 and the power strip 80 by sensing the open / close state, and the control information transmitted from the lock control unit 20 wirelessly to receive the gas. A gas valve control unit 30 which operates the valve driving motor 40 to open and close the gas valve 48 and wirelessly transmits the opened / closed information to the lock control unit 20 and wirelessly transmits the lock control unit 20. The multi-tap control unit 50 receives the control information to control the power supply of the power strip 80 and transmits the intermittent information to the lock control unit 20 wirelessly, and the lock control unit 20 is a gas valve control unit 30 ) And multi-tap control unit 50 It is characterized in that the two-way communication is performed to receive the control information transmitted from the gas valve 48 opening and closing information and the power-off information of the power strip 80 to buzzer and voice.

Figure 1a is a gas valve and power cut off when opening and closing the door of the wireless method according to the invention

Conceptual diagram of the device.

Figure 1b is a gas valve and power cut off when opening and closing the door of the streamline method according to the present invention

Conceptual diagram of the device.

2 is a structural diagram of a lock according to the present invention;

3 is a structural diagram of a gas valve driving unit according to the present invention;

Figure 4a is a block diagram of the lock control unit according to the present invention.

Figure 4b is a block diagram of a gas valve control unit according to the present invention.

4C is a block diagram of a multi-tap control unit according to the present invention.

Figure 5a is a flow chart of the lock control unit according to the present invention.

Figure 5b is a flow chart of the operation of the gas valve control unit according to the present invention.

Figure 5a is a flow chart of the operation of the multi-tap control unit according to the present invention.

<Explanation of symbols for main parts of drawing>

10 door lock 11 lock 12 first fixture

13 first rotating body 14 key insertion hole 15 first fixed sensor

16: second fixed sensor 17: first flow sensor 20: lock control unit

21, 31, 52: first, second, third battery

22a, 32, 52: 1st, 2nd, 3rd power switch 22b: Internal switch

23, 33, 53: first, second, third constant voltage circuit

24, 34, 54: first, second, third radio transmitter

25, 35, 55: first, second, third signal converter

26, 36, 56: first, second, third microprocessor

27: infrared sensor 28: voice transmitter 29: buzzer

30: gas valve control unit 40: gas valve drive motor 41: manual valve

42. 2nd rotating body 44: 3rd fixed sensor 45: 4th fixed sensor

46 second flow sensor 47 knob 48 gas valve

49: piping 50: multi-tap control unit 80: multi-tap

Hereinafter, described in detail by the accompanying drawings as follows.

1A is a conceptual diagram of a gas valve and an automatic power cut-off device when opening and closing a door in a wireless manner according to the present invention, and wirelessly transmitting control information for blocking a gas valve and a power strip 80 by detecting an open / closed state of a lock 10. The lock control unit 20 and the control information transmitted wirelessly from the lock control unit 20 to operate the gas valve driving motor 40 to open and close the gas valve, the lock control unit 20 A gas valve control unit 30 that transmits wirelessly to the control unit; and control information transmitted wirelessly from the lock control unit 20 to control the power supply of the power strip 80; It consists of a multi-tap control unit 50 for wireless transmission to the 20, the lock control unit 20 receives the control information transmitted from the gas valve control unit 30 and the multi-tap control unit 50 to the buzzer and voice It is supposed to send.

The operation concept of the present invention configured as described above is as follows.

First, when the door is in the open or closed position by manipulating the lock 10 of the user, the lock control unit 20 recognizes this and transmits an open / close command to the gas valve driving motor 40 to the gas valve controller 30 by wireless. At the same time, the multi-tap control unit 50 wirelessly transmits a control command for instructing power to be interrupted.

The gas valve control unit 30 receives a control command transmitted from the lock control unit 20 and operates the gas valve driving motor 40 to correspond to the command to open and close the gas valve, and at the same time, change of the gas valve, Wirelessly transmits the information of the opening in the open or closed in the lock control unit 20.

The multi-tap control unit 50 receives a control command transmitted from the lock control unit 20 and intercepts the power supplied to the multi-tap 80 in accordance with the command, and at the same time, the change of the multi-tap 80, that is, connected in the blocking state. Or, wirelessly transmits the lockout information to the lock control unit 20 in the connection.

At this time, the lock control unit 20 receives the wirelessly transmitted information from the gas valve control unit 30 and the multi-tap control unit 50 to transmit the control status by buzzer and voice, the user according to the operation of the lock 10 The opening and closing state of the gas valve and the power interruption state of the power strip 80 are accurately recognized.

1B is a conceptual diagram of a gas valve and a power automatic shut-off device when opening and closing a wired door according to the present invention.

This will be described in detail with reference to FIGS. 2 to 5C as follows.

2 (a) is a structural diagram of the lock 10 according to the present invention, (b) is a cross-sectional view taken along the line AA of (a), the key insertion hole 14 is formed in the center and the magnet on the outer peripheral side 1 is provided with a first rotating body 13 is provided with a flow sensor 17, the outside of the first rotating body 13 of the Hall sensor for generating an electrical signal in the proximity of the first flow sensor 17, the magnet The first and second fixed sensors 15 and 16 are provided with a first fixed body 12 formed therein at a predetermined interval, and the first rotating body 13 is inside the first fixed body 12. Is rotated by a certain angle at.

The lock 10 formed as described above has the first flow sensor 17, which is a magnet formed on the first rotating body 13 by rotating the key 11 into the key insertion hole 14 and rotating it forward and backward, the first fixed body. When the first and second fixed sensors 15 and 16 of the hall sensor formed at 12 are close to each other, an electrical signal is generated from the first and second fixed sensors 15 and 16 by the Hall effect. The electrical signal is read by a microprocessor to be described later to recognize whether the lock 10 is currently open or closed.

In the present invention, for convenience of description, when the first flow sensor 17 and the first fixed sensor 15 are in proximity, the lock 10 is in an open state, and the first flow sensor 17 and the second fixed sensor 16 are in proximity. Defined as closed.

FIG. 3A is a structural diagram of a gas valve driving unit according to the present invention, and FIG. 3B is a cross-sectional view taken along line BB of FIG. 3A, and the knob 47 of the gas valve 48 installed at a predetermined position of the pipe 49 is shown in FIG. The second rotating body 42 having a second flow sensor 46, which is a magnet, is fixedly installed at one side of the outer circumference thereof, and a driven gear 43a is formed at one side of the second rotating body 42 to manually generate gas. A manual valve 41 capable of operating the valve 48 is provided, and the driven gear 43a is provided with an interlocking main gear 43b interlocked with each other when the gas valve driving motor 40 is operated. The first and second support members 44a and 45a fixed to the 48 at an angle of about 45 degrees to the third and fourth fixed sensors of the hall sensor that generate an electric signal when the second flow sensor 46 is in proximity to the first and second support members 44a and 45a. 44) 45 are provided and comprised.

When the gas valve driving motor 40 is rotated forward and backward by the microprocessor described below, the gas valve driving unit is rotated by engaging the main gear 43b and the driven gear 43a with the driven gear 43a and the knob. The second rotary body 42 coupling the 47 rotates forward and backward to open and close the gas valve 48.

At this time, the second rotating body 42 is rotated forward and reverse to the third, fourth fixed sensor of the Hall sensor, the second flow sensor 46, which is a magnet installed on the first, second support 44a, 45a (44) (45) When in close proximity, an electrical signal is generated from the third and fourth fixed sensors 44 and 45 by the Hall effect, and the gas valve 48 is read by reading the electrical signal in a microprocessor to be described later. It is designed to recognize whether it is currently open or closed.

In the present invention, for convenience of description, the gas valve 48 is in an open state when the third fixed sensor 44 and the second flow sensor 46 are in proximity, and the third fixed sensor 44 and the fourth fixed sensor 45 are in proximity. Defined as closed state.

4A is a block diagram of the lock control unit 20 according to the present invention. The first constant voltage circuit 23 outputs a DC voltage of a predetermined level to the first battery 21 of 12V through the first power switch 22a. Is connected to supply driving power to the electronic component of the lock control unit 20.

The control signal of the opening / closing command of the gas valve 48 is detected by detecting the opening and closing of the lock 10 by the output signals of the first and second fixed sensors 15 and 16 and the first flow sensor 17. A first microprocessor 26 for outputting and reading information received from the gas valve control unit 30 and the multi-tap control unit 50 and outputting a control signal corresponding thereto, and a control signal of the first microprocessor 26. A first signal converter 25 for demodulating and outputting the corresponding information into a frequency and demodulating and outputting the information received from the gas valve controller 30 and the power strip controller 50, and the first signal converter 25. And a first radio transmitter 24 for synchronizing control information outputted from the radio wave to the space through the antenna ANT1 and receiving radio signals transmitted from the gas valve controller 30 and the power strip controller 50. 1 input of microprocessor 26 Infrared sensor 27 is connected to the sensor to generate a human detection signal to detect a person in the room, and the lock 10 is closed in a state where there is a person connected to the input terminal of the first microprocessor 26 The internal switch 22b for selectively operating the system so that the system does not operate when it is set to the position, the voice transmitter 28 for transmitting various types of information output from the first microprocessor 26 as voice and generating an alarm sound; It consists of a buzzer 29.

4B is a block diagram of the gas valve control unit 30 according to the present invention. The second constant voltage circuit 33 outputs a predetermined level of DC voltage to the second battery 31 of 12V through the second power switch 32. ) Is connected to supply driving power to the electronic component of the gas valve control unit 30.

The opening and closing state of the gas valve 48 is sensed by the third and fourth fixed sensors 44 and 45 and the second flow sensor 46, and the control information received from the lock control unit 20 is read and driven. A second microprocessor 36 for controlling the gas valve driving motor 40 through 37 and outputting opening / closing completion information of the gas valve 48 to the lock control unit 20; A second signal converter 35 for converting and outputting the open / close completion information into a frequency by the control signal of (36), and demodulating and outputting the information received from the lock controller 20, and the second signal converter 35 And a second radio transmitter 34 for synchronizing the open / close completion information outputted from the radio wave to the space through the antenna ANT2 and receiving a radio signal transmitted from the lock controller 20.

4C is a block diagram of the multi-tap control unit 50 according to the present invention. The third constant voltage circuit 53 outputs a predetermined level of DC voltage to the third battery 51 of 12V through the third power switch 52. Is connected to supply driving power to the electronic component of the multi-tap control unit 50.

Reads the control information received from the lock control unit 20 to interrupt the power supply of the power strip 80 through the relay 57 and outputs the power interruption completion information of the power strip 80 to the lock control unit 20 A third signal which converts and outputs the power interruption completion information into a frequency by a third microprocessor 56 and a control signal of the third microprocessor 56, and demodulates and outputs information received from the lock controller 20; Synchronizing the power interruption completion information output from the conversion unit 55 and the third signal conversion unit 55 to radiate into the space through the antenna ANT3 and to receive the radio signal transmitted from the lock control unit 20 It consists of three radio transmitters 54.

Herein, the reference numeral OSC is an oscillation circuit for allowing the first, second, and third microprocessors 26, 36, 56 to operate.

5A is an operation flowchart of the lock control unit 20 according to the present invention, FIG. 5B is an operation flowchart of the gas valve control unit 30 according to the present invention, and FIG. 5C is an operation flowchart of the multi-tap control unit 50 according to the present invention. to be.

The working relationship of the present invention configured as described above will be described in detail with reference to FIGS. 2 to 5C as follows.

First, as shown in FIGS. 4A to 4C, the lock control unit 20, the gas valve control unit 30, and the first, second, and third power switches 22a, 32, and 52 of the power strip control unit 50 are turned on. When operating in the state, driving power is supplied to all systems, and the first to third microprocessors 26 and 36 and 56 are initialized and operated, and at the same time, the first and second microprocessors 26 and 36 are operated. ) Detects whether the lock 10 and the gas valve 48 are open or closed.

That is, as defined above, as shown in FIG. 2, since the first flow sensor 17, which is a magnet, and the first fixed sensor 15, which is a hall element, are close to each other, an electrical signal is generated from the first fixed sensor 15. The signal is applied to the first microprocessor 26 shown in FIG. 4A to recognize that the lock 10 is currently open.

In addition, as defined above, since the second flow sensor 46, which is a magnet, and the third fixed sensor 44, which is a hall element, are adjacent to each other, an electrical signal is generated from the third fixed sensor 44. The signal is applied to the second microprocessor 36 shown in FIG. 4B to recognize that the gas valve 48 is currently open.

In this state, the user operates the internal switch 22b shown in FIG. 4A when a user is present in the room and uses the gas or the power strip 80 to turn on the person. When not present because the gas or the power strip 80 is not used, the internal switch 22b is turned off to determine whether the system is artificially operated by the user's selection.

At this time, when the lock signal of the lock 10 is input within a predetermined time when the internal switch 22b is turned on, the operation of the system is stopped and maintains the current state. However, if there is no close signal of the lock 10 within a predetermined time, the system is operated. It is programmed to proceed normally.

In addition, when a person is present in the room, the person is detected by the infrared sensor 27, and the detected signal is applied to the first microprocessor 26 to recognize the presence of a person in the room to operate the system. It is programmed to not.

As such, when the lock 10 and the gas valve 48 are both open, the user enters the key 11 into the key insertion hole 14 so that the user can go out, and then rotates clockwise by a predetermined angle. 2 As the fixed sensor 16 and the first flow sensor 17 of the magnet come into contact with each other, an electrical signal is generated from the second fixed sensor 16, and the electrical signal is generated by the lock control unit 20 of FIG. 4A. It is recognized that the lock 10 is currently closed by being applied to the one microprocessor 26.

The first microprocessor 26 of the lock control unit 20 detects whether the internal switch 22b is always in contact with the lock 10 in the open state, and then determines whether the internal switch 22b is on or off. If it is determined (step 101) that the internal switch 22b is in an on state, it is recognized that a person is present in the room and the system is not artificially operated.

In this way, if the lock 10 is detected within a predetermined time while the internal switch 22b is connected to the on state (step 102), it is determined whether a person is detected in the room from the infrared sensor 27 (step 103). If a person is not detected, a command for locking the gas is provided to the gas valve control unit 30 and a power off command is issued to the multi-tap control unit 50 at step 104.

Here, the first micro process 26 stops the operation of the system and maintains the current state when the lock 10 is not locked within a predetermined time or a person is sensed indoors by the infrared sensor 27.

Therefore, the valve lock and the power-off command signal output from the first micro process 26 are applied to the first signal conversion unit 25 to convert the frequency into a frequency and output the converted frequency signal to the first radio transmitter. It is synchronized via 24 to radiate into the space through the antenna ANT1.

On the other hand, the valve lock command transmitted from the lock control unit 20 is received by the second wireless transmission and reception unit 34 of the gas valve control unit 30 through the antenna ANT2, the received valve lock command information is a second signal. The digital signal is demodulated through the converter 35 and transmitted to the second microprocessor 36.

At this time, the second micro process 36 receives the electrical signals of the second flow sensor 46, which is a magnet, and the third and fourth fixed sensors 44, 45, which are hall elements, as shown in FIG. ) Will recognize the open or closed state.

That is, when it is determined that the valve blocking information is received from the lock control unit 20 in the state in which the gas valve 48 is detected to be open (step 136), as shown in FIG. 5B (step 137), the gas is stored through the drive 37. The valve driving motor 40 is rotated forward (step 138) to shut off the gas valve 48, and when the shutoff of the gas valve 48 is completed, the second flow sensor 46, which is a magnet, and the fourth fixing, which is a hall element, are fixed. The closing signal is applied to the second micro-process 36 by the sensor 45 to recognize that the gas valve 48 is fully closed (step 138a).

Therefore, when the gas valve 48 is completely closed, the second micro process 36 transmits the information indicating the closing of the gas valve 48 to the lock control unit 20 (step 139) and outputs the information. The information is converted to a frequency which is an analog signal by being applied to the second signal converter 35, and the converted frequency signal is synchronized with the second wireless transmitter 34 to radiate into space through the antenna ANT2. Done.

At the same time, the power cutoff command transmitted from the lock control unit 20 is received by the third wireless transmitter / receiver 54 of the power strip controller 50 through the antenna ANT3, and the received power cutoff command information is converted into a third signal. The demodulation unit 55 demodulates the digital signal to the third microprocessor 56.

In this case, as shown in FIG. 5C, when the power-off command is received from the lock control unit 20 in the third micro process 56 (step 142), the relay 57 is turned off (step 143). 58 to turn off the AC 220V supplied to the power strip 80 to stop the operation of the various electrical devices connected to the power strip 80 and at the same time the power of the power strip 80 to the lock control unit 20 Information indicating the blocking is output (step 144).

The information indicating that the power output from the third micro process 56 is cut off is applied to the second signal converter 55 to convert the frequency signal, which is an analog signal, and output the converted frequency signal. In synchronization with the transmitter 54, the antenna ANT3 radiates into space.

Accordingly, the lock completion information and the power shut-off completion information of the gas valve 48 transmitted from the gas valve control unit 30 and the multi-tap control unit 50 are the first wireless transmitter 24 of the lock control unit 20 through the antenna ANT1. And the received information is demodulated by the first signal converter 25 into a digital signal and transmitted to the first microprocessor 26.

When the gas valve 48 lock completion information and power shut-off completion information are received by the first micro process 26, the information is notified to the user through the buzzer 29 and the voice transmitter 28. That is, the shut-off completion information of the gas valve 48 transmits the message "The gas valve has been switched from the open state to the closed state", and the power-off completion information of the power strip 80 has "cut off the power supply of the multi-tap". Will send a message.

Therefore, the user can easily check how and when the gas valve 48 is switched when listening to the message sent out, and the type of such a message depends on the number of cases of the lock 10 and the gas valve 48 open and closed state. It is programmed to be sent out accordingly.

On the other hand, when the gas valve 48 is closed and the lock 10 is opened after going out after going out, the gas valve driving motor 40 and the relay 57 have the opposite process through the same process as described above. Since only the difference is to be omitted detailed description.

As described above, in the present invention, a bidirectional communication is wirelessly performed using a microprocessor between a lock control unit for detecting an open / closed state of a gate lock, a gas valve control unit for controlling a gas valve, and a multi-tap control unit for controlling power of an electronic device. By opening and closing the gas valve and the electronic device when the power is switched on and off the voice, the user has an effect that can easily check how and when the gas valve is switched when listening to the message sent out.

In addition, the present invention by installing an infrared sensor for detecting the presence or absence of a person in the room to lock the lock in the presence of a person in the room so that the device does not operate, the opening and closing of the lock and gas valve to detect By installing an open / close detection sensor that enables the microprocessor to accurately recognize the open / closed state of the current lock and gas valve, the information of the gas valve change, ie open to closed or open to closed, is voiced to the user as the lock is opened or closed. By sending out, the effect is more precise, stable and reliable.

Claims (6)

In the device for automatically shutting off the power of the gas valve 48 and the power strip 80 which is opened and closed by the gas valve driving motor 40 when opening and closing the lock 10 installed in the door, A lock control unit 20 for wirelessly transmitting control information for blocking the gas valve 40 and the power strip 80 by detecting the open / close state of the lock 10; Receiving control information transmitted wirelessly from the lock control unit 20 to operate the gas valve driving motor 40 to open and close the gas valve 48 and transmit the open and closed information to the lock control unit 20 wirelessly. The gas valve control unit 30, The multi-tap control unit 50 receives control information transmitted wirelessly from the lock control unit 20 to interrupt the power of the power strip 80 and wirelessly transmits the intermittent information to the lock control unit 20. Wow, The lock control unit 20 receives control information transmitted from the gas valve control unit 30 and the power strip control unit 50, and transmits the gas valve 48 opening / closing information and the power cutoff information of the power strip 80 by buzzer and voice. Gas valve and automatic power cut-off device when opening and closing the door, characterized in that the bi-directional communication is made to. The method of claim 1 wherein the lock 10, A key insertion hole 14 is formed in the center portion, and a first rotating body 13 provided with a first flow sensor 17, which is a magnet, is provided at one side of the outer circumference thereof. The first and second fixed sensors 15 and 16 of the Hall sensors, which generate an electric signal when the first flow sensor 17 is in proximity to the first rotating body 13, are introduced at predetermined intervals. The fixture 12 is installed, The first rotary body (13) is a gas valve and power automatic shut off device when opening and closing the door, characterized in that configured to rotate by a predetermined angle inside the fixed body (12). The gas valve 48 according to claim 1 or 2, On the outside of the knob 47, a second rotating body 42 having a second flow sensor 46, which is a magnet, is fixedly installed. On one side of the second rotating body 42, a driven gear 43a is formed and a manual valve 41 capable of manually operating the gas valve 48 is installed. The driven gear 43a is provided with a main gear 43b interlocked with each other when the gas valve driving motor 40 is operated. First and second support members 44a and 45a fixed to the gas valve 48 at a 45 degree angle are installed. The third and fourth fixed sensors 44 and 45 of the hall sensors, which generate electric signals when the second flow sensor 46 is close to each other, are provided at ends of the first and second support members 44a and 45a. Gas valve and automatic power off device when opening and closing the door. According to claim 3, The lock control unit 20, The control signal of the opening / closing command of the gas valve 48 is detected by detecting the opening and closing of the lock 10 by the output signals of the first and second fixed sensors 15 and 16 and the first flow sensor 17. A first microprocessor 26 which outputs and reads out information received from the gas valve control unit 30 and the multi-tap control unit 50 and outputs a control signal corresponding thereto; The first signal conversion unit 25 converts and outputs corresponding information into a frequency by a control signal of the first microprocessor 26, and demodulates and outputs information received from the gas valve control unit 30 and the power strip control unit 50. )Wow, The first radio for synchronizing the control information output from the first signal conversion unit 25 to radiate into the space through the antenna ANT1 and receive radio signals from the gas valve control unit 30 and the power strip control unit 50. A transmitter 24, An infrared sensor 27 connected to an input of the first microprocessor 26 to detect a person in the room and to generate a human detection signal; An internal switch 22b connected to an input of the first microprocessor 26 and selectively operating so that the system does not operate when the lock 10 is in a closed position in a state where a person is present in the room; Gas valve and automatic power cut-off device when opening and closing the door, characterized in that composed of a voice sending unit 28 and a buzzer 29 to send a variety of information output from the first microprocessor 26 as a voice and generate an alarm sound . The gas valve control unit 30 of claim 4, The opening and closing state of the gas valve 48 is sensed by the third and fourth fixed sensors 44 and 45 and the second flow sensor 46, and the control information received from the lock control unit 20 is read and driven. A second microprocessor 36 for controlling the gas valve driving motor 40 through 37 and outputting the open / close completion information of the gas valve 48 to the lock control unit 20; A second signal converter 35 for converting and outputting the open / close completion information into a frequency by a control signal of the second microprocessor 36 and demodulating and outputting the information received from the lock controller 20; And a second wireless transmitter 34 for synchronizing the opening and closing completion information output from the second signal converter 35 to the space through the antenna ANT2 and receiving a radio signal transmitted from the lock controller 20. Gas valve and automatic power off device when opening and closing the door. The multi-tap control unit 50 of claim 5, wherein Reads the control information received from the lock control unit 20 to interrupt the power supply of the power strip 80 through the relay 57 and outputs the power interruption completion information of the power strip 80 to the lock control unit 20 A third microprocessor 56, A third signal conversion unit 55 for converting and outputting power interruption completion information into a frequency by a control signal of the third microprocessor 56 and demodulating and outputting information received from the lock control unit 20; Synchronizes the power interruption completion information output from the third signal converter 55 to the third radio transmitter 54 for radiating the space through the antenna ANT3 and receiving radio signals from the lock controller 20. Gas valve and automatic power off when opening and closing the door, characterized in that configured.