Gas active safety system

Abstract

The utility model relates to the technical field of fuel gas. The gas active safety system comprises an electric control gas valve and a control system, the control output end of the control system is in signal connection with the control signal input end of the electric control air valve; the control system adopts a control system with a timer function, and the control system is provided with a timer starting signal input end with a timer starting function; the detection system comprises a detection device and a detection signal output interface; the detection device comprises a device for detecting gas flow; the detection signal output interface is in signal connection with a signal acquisition input end of the control system; the alarm prompting system comprises a sound generator; the sound generator is connected with the alarm prompting system; the control system starts timing after detecting that the fuel gas is used, gives a voice prompt after the timing time is up, and actively closes the fuel gas pipeline to avoid fire accidents caused by forgetting to turn off the fuel gas if no response is obtained.

Description

Technical Field

[0001] The present application relates to the field of gas technology, in particular to gas safety. Background Art

[0002] Once people enter old age, the chance of suffering from amnesia will inevitably increase. At present, gas stoves generally have the function of flameout and gas cut-off protection, but there is no corresponding technical solution for the elderly who forget to turn off the fire in time after using the fire. Forgetting to turn off the fire in time accounts for more than half of kitchen fires. If you forget to turn off the fire and go out to do things, it is bound to cause more serious fire accidents, resulting in the consumption of social resources and affecting social security. Therefore, it is urgent to solve the gas safety problem caused by forgetting to turn off the fire. Utility Model Content

[0003] The purpose of the utility model is to provide a gas active safety system to solve at least one of the above technical problems.

[0004] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0005] The active gas safety system includes an electric-controlled gas valve and a control system; the control output terminal signal of the control system is connected to the control signal input terminal of the electric-controlled gas valve; the control system adopts a control system with a timer function, and the control system has a timer start signal input terminal for starting the timer function; it also includes a detection system, the detection system includes a detection device, and a detection signal output interface; the detection device includes a device for detecting the flow of gas; the detection signal output interface signal is connected to the timer start signal terminal of the control system; the control system also has an alarm control output terminal; it also includes an alarm prompt system, the alarm prompt system includes a sounder, and a sound input signal terminal, and the alarm control output terminal signal of the control system is connected to the sound input signal terminal of the alarm prompt system.

[0006] In the above design, a detection device for detecting gas circulation is designed. The purpose of detecting gas circulation is to determine whether the gas is being used. When the control system detects that the gas is being used, the control system starts the timer function. If the gas use is terminated during the timer operation, the timing ends and the control system resets to standby.

[0007] During the timing of the control system, the control system emits a first mode prompt sound through the alarm prompt system every 1 minute. The prompt sound is used to remind the user that the gas is in use to prevent the user from forgetting.

[0008] When the control system timing reaches 30 minutes, the control system sends out a second mode prompt sound through the alarm prompt system. After sending out the second mode prompt sound, the control system has a ten-second delay waiting process. During the delay waiting process, the control system sends out a third mode prompt sound through the alarm prompt system. After ten seconds, the control system sends a signal to close the gas channel through the control output end to the control signal input end of the electric control gas valve, and then the electric control gas valve closes the gas channel, eliminating the safety hazard when the gas user forgets to turn off the fire in time.

[0009] Furthermore, the control system also has an input interface for triggering the reset function of the control system, referred to as the reset input interface; it also includes a reset control device, the reset control device includes an output port for outputting a reset signal, referred to as the reset signal output end; the reset output end of the reset control device is connected to the reset input interface of the control system.

[0010] In the utility model, the function of the reset control device is to accept the input signal of the user in the human-computer interaction, and then trigger the reset input interface of the control system according to the input signal, thereby guiding the control system to execute the reset function.

[0011] For further optimization, the reset control device adopts an electronic switch, which is called a reset switch.

[0012] In the utility model, the reset switch is used as an input device for operation control, and its operation control output interface only includes a single-level signal. When the control system is in the timing stage, the reset switch plays the role of a cyclic switch function of muting or turning on the prompt sound;

[0013] When the control system is in a timer that has expired and the system is in a delay waiting period, the reset switch resets the control system's timer and enters the next timing cycle;

[0014] When the control system's timing delay ends and the control system closes the gas channel through the electric-controlled gas valve, the electric-controlled gas valve will remain closed. At this time, the function of the reset switch is to reset the control system. After the control system receives the reset signal from the reset switch, it cancels the control signal to the control signal input end of the electric-controlled gas valve. The gas channel is opened after the electric-controlled gas valve loses the control signal.

[0015] For further optimization, the reset control device adopts a pickup.

[0016] In the present invention, the microphone can be used as a voice control input device. When a sound occurs, the microphone outputs a high potential signal, thereby triggering the reset input interface of the control system, thereby executing the reset function process preset by the control system.

[0017] Furthermore, it also includes a speech recognition system, which includes a microphone for receiving sound and a speech recognition coding signal output interface; the control system has an input interface for receiving speech recognition coding signals, which is called the speech recognition coding signal input interface; the speech recognition coding signal output interface of the speech recognition system is connected to the sound recognition coding signal input interface of the control system.

[0018] In the present invention, the voice recognition system obtains external voice through the microphone. If a specific voice is captured and recognized by the voice recognition system, the voice recognition system will send a specific coded signal to the voice recognition signal input interface of the control system. The control system can perform corresponding complex functions according to the coded signal sent by the voice recognition signal. The specific voice can be set to be similar to the following voices:

[0019] 1. Disable (mute): turn off the reminder sound during the timing process;

[0020] 2. Enable reminder: Enable the reminder sound during the timing process;

[0021] 3. Continue: After the timing expires, the control system is instructed to continue using gas, and the timer is reset and started again;

[0022] 4. Close: After the timing expires, the control system is instructed to immediately close the electric control gas valve.

[0023] 5. Reset: The control system closes the electric control valve. This voice command is used to open the electric control valve and the control system resets and enters standby mode.

[0024] The microphone in the speech recognition system adopts an electret microphone. The electret microphone has the advantages of relatively simple structure, easy manufacturing, low cost, and no need for external power supply. Compared with the condenser microphone, the electret microphone has relatively low sensitivity and it is difficult to capture delicate and high-frequency sounds. However, in the application scenario of the present invention, the human voice that the microphone needs to capture is basically in the middle frequency. Therefore, choosing the electret microphone as the microphone of the speech recognition system has the beneficial effect of saving manufacturing costs while meeting the requirements of human voice recognition.

[0025] Furthermore, the detection device includes a door panel that is arranged in the gas pipeline and closes the pipeline. The door panel rotates around a fixed axis, and the fixed axis is arranged on one side of the gas pipeline. The door panel is provided with a reset elastic member. An infrared beam switch is also provided in front of the door panel in the opening direction. The infrared beam switch emits infrared rays parallel to the door panel when resetting, and the parallel distance is 2 to 5 mm. The infrared beam switch has a switch signal output interface.

[0026] This solution determines whether the gas is in use by detecting whether the door panel is deflected. In this design, a door panel is set in the gas channel, and the door panel rotates around a fixed axis. The fixed axis is set on one side of the gas pipeline. The door panel is closed in the gas channel under the action of elastic parts such as torsion springs and tension springs. In the direction of the door panel opening, a beam infrared switch is set. When the door panel closes the gas channel, the distance between the beam infrared setting and the distance between the door panel does not exceed 5mm. When the gas is used, the pressure difference in the gas pipeline drives the door panel to rotate along the fixed axis, and then the deflected door panel blocks the infrared between the beam infrared switch, thereby triggering the beam infrared switch to send a signal that the gas is in use to the signal acquisition input end of the control system, and the control system starts timing to start the safety process.

[0027] Furthermore, it also includes a timer device, which includes a setting device for setting the timing duration and a timing signal output terminal; the control system also has a timer signal input terminal; the timing signal output terminal signal is connected to the timer signal input terminal of the control system.

[0028] The present invention also provides another active safety technical solution. By setting a timer, the user of the present invention can set the duration of gas use. At this time, the control system does not enter the timing monitoring process, but starts to the timing monitoring process. When the set timing duration is executed, the control system sends a signal to close the gas channel to the control signal input end of the electric control gas valve through the control output end, thereby actively closing the gas channel.

[0029] Further preferably, the setting device adopts a knob switch.

[0030] In the utility model, the countdown starts after the knob switch is set for a certain time. During the period until the timing ends, the knob switch continuously transmits a signal indicating that the timer is running to the control system. When the timing ends, the running signal disappears, and the control system promptly controls the electric control gas valve to close the gas channel according to whether the running signal disappears.

[0031] Further preferably, it also includes an equipment installation device, which includes a shell and a panel; the electric control gas valve and the control system are arranged in the shell; a timer and a reset switch are arranged on the front of the panel; a sounder placement cavity and a pickup placement cavity are arranged on the back of the panel, and the sounder placement cavity and the pickup placement cavity are both provided with air vents facing the front of the panel.

[0032] In the utility model, an installation device is provided, the electric control valve and the control system are placed in the shell, the device requiring human-machine interaction, the timer, the reset switch, etc. are installed on the panel, the sounder and the pickup are installed on the back of the panel, in a specially set cavity, the cavity and the front of the panel have air vents, the sound of the sounder can be emitted through the air vents, and the pickup can receive the sound through the air vents. The various parts of the utility model are integrated into one device through the installation device, which is convenient for the installation and use of the utility model.

[0033] Further preferably, a status indicator light is also provided on the panel; the status indicator light has a color display control input interface that displays red and green, and the control output end of the control system is connected to the color display control input interface.

[0034] In the utility model, a status indicator light is set on the panel to prominently display the current state of the utility model. The status indicator light has two colors. Red indicates that the current electric-controlled gas valve is in a closed state and the control system is waiting to be reset; green indicates that the electric-controlled gas valve is in an open state and the control system is in a standby state.

[0035] The user of the utility model can make operation selections according to the conditions of the status indicator light.

[0036] The utility model detects whether the gas is in use through a detection system, and then performs timing through a control system. During the timing period, a sounder is used to give an active warning prompt sound that the gas is in use. After the timing is up for thirty minutes, the sounder is used to give a second warning. If there is no response from the user, it is determined that the current gas use is in a state of forgetting to turn off the fire. The control system actively closes the gas channel through an electronically controlled gas valve to ensure the safety of gas use.

[0037] Its beneficial effect also lies in that the detection device uses the original flame sensor of the gas stove, which can save application costs; or uses whether the door panel is deflected to determine whether the gas is in a flowing state. This method has a simple structure and high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0039] Figure 1 It is a front view of the utility model;

[0040] Figure 2 It is a schematic diagram of a detection device of the utility model.

[0041] Explanation of symbols:

[0042] 1. Timer device; 2. Sounder; 3. Pickup; 4. Reset switch; 5. Door panel; 6. Infrared beam switch. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0046] Secondly, the "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the utility model. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0047] Reference Figure 1 , Figure 2 As shown, the active gas safety system includes an electric-controlled gas valve and a control system; the control output terminal signal of the control system is connected to the control signal input terminal of the electric-controlled gas valve; the control system adopts a control system with a timer function, and the control system has a timer start signal input terminal with a timer start function; it also includes a detection system, the detection system includes a detection device, and a detection signal output interface; the detection device includes a device for detecting gas flow; the detection signal output interface signal is connected to the timer start signal terminal of the control system; the control system also has an alarm control output terminal; it also includes an alarm prompt system, the alarm prompt system includes a sounder 2, and a sound input signal terminal, and the alarm control output terminal signal of the control system is connected to the sound input signal terminal of the alarm prompt system.

[0048] In the above design, a detection device for detecting gas circulation is designed. The purpose of detecting gas circulation is to determine whether the gas is being used. When the control system detects that the gas is being used, the control system starts the timer function. If the gas use is terminated during the timer operation, the timing ends and the control system resets to standby.

[0049] During the timing of the control system, the control system emits a first mode prompt sound through the alarm prompt system every 1 minute. The prompt sound is used to remind the user that the gas is in use to prevent the user from forgetting.

[0050] When the control system timing reaches 30 minutes, the control system sends out a second mode prompt sound through the alarm prompt system. After sending out the second mode prompt sound, the control system has a ten-second delay waiting process. During the delay waiting process, the control system sends out a third mode prompt sound through the alarm prompt system. After ten seconds, the control system sends a signal to close the gas channel through the control output end to the control signal input end of the electric control gas valve, and then the electric control gas valve closes the gas channel, eliminating the safety hazard when the gas user forgets to turn off the fire in time.

[0051] In this embodiment, the sounder 2 of the alarm prompt system adopts a piezoelectric ceramic speaker. The piezoelectric ceramic speaker as the sounder 2 has the advantages of low energy consumption, light volume, strong sound penetration, and does not require a complicated speaker back cavity design. Combined with the packaged sound mode chip, it can provide multiple sets of alarm voices.

[0052] The control system also has an input interface for triggering the reset function of the control system, called the reset input interface; it also includes a reset control device, the reset control device includes an output port for outputting a reset signal, called the reset signal output end; the reset output end of the reset control device is connected to the reset input interface of the control system.

[0053] In this embodiment, the function of the reset control device is to accept the user's input signal in human-computer interaction, and then trigger the reset input interface of the control system according to the input signal, thereby guiding the control system to execute the reset function.

[0054] The reset control device adopts an electronic switch, which is called the reset switch 4.

[0055] In this embodiment, the reset switch 4 serves as an input device for operation control, and its operation control output interface includes one bit of level information. When the control system timing delay ends and the control system closes the gas channel through the electric-controlled gas valve, the electric-controlled gas valve will remain in a closed state. At this time, the function of the reset switch 4 is to reset the control system. After the control system receives the reset signal of the reset switch 4, it cancels the control signal to the control signal input end of the electric-controlled gas valve. The gas channel is opened after the electric-controlled gas valve loses the control signal.

[0056] When the control system is in the timing stage, the reset switch 4 plays the role of a cyclic switch function of muting or turning on the prompt tone;

[0057] When the control system is in a timer that has expired and the system is in a delay waiting state, the function of the reset switch 4 is to reset the timer of the control system and enter the next timing cycle;

[0058] The reset control device adopts a pickup 3.

[0059] In this embodiment, the microphone 3 can be used as a voice control input device. When a sound occurs, the microphone 3 outputs a high potential signal, thereby triggering the reset input interface of the control system, thereby executing the reset function process preset by the control system.

[0060] It also includes a speech recognition system, which includes a microphone 3 for receiving sound and a speech recognition coding signal output interface; the control system has an input interface for receiving speech recognition coding signals, which is called the speech recognition coding signal input interface; the speech recognition coding signal output interface of the speech recognition system is connected to the sound recognition coding signal input interface of the control system.

[0061] In this embodiment, the voice recognition system obtains external voice through the microphone 3. If a specific voice is captured and recognized by the voice recognition system, the voice recognition system sends a specific coded signal to the voice recognition signal input terminal of the control system. The control system can perform corresponding complex functions according to the coded signal sent by the voice recognition signal. The specific voice can be set to be similar to the following voice:

[0062] 1. Disable (mute): turn off the reminder sound during the timing process;

[0063] 2. Reminder: Turn on the reminder sound during the timing process;

[0064] 3. Continue: After the timing expires, the control system is instructed to continue using gas, and the timer is reset and started again;

[0065] 4. Close: After the timing expires, the control system is instructed to immediately close the electric control gas valve.

[0066] 5. Reset: The control system closes the electric control valve. This voice command is used to open the electric control valve and the control system resets and enters standby mode.

[0067] The recognition chip of the voice recognition system adopts the one-time programmable voice chip WTN6 series. In this embodiment, the voice to be recognized is preset in advance, so the one-time programmable voice chip is adopted, which has the beneficial effects of low cost and high operation stability.

[0068] The pickup 3 in the speech recognition system adopts an electret microphone. The electret microphone has the advantages of relatively simple structure, easy manufacturing, low cost, and no need for external power supply. Compared with the capacitive microphone, the electret microphone has relatively low sensitivity and is difficult to capture delicate and high-frequency sounds. However, in the application scenario of this embodiment, the human voice that the pickup 3 needs to capture is basically in the medium frequency. Therefore, choosing the electret microphone as the pickup 3 of the speech recognition system has the beneficial effect of saving manufacturing costs while meeting the requirements of human voice recognition.

[0069] Embodiment 1:

[0070] Reference Figure 2 As shown, the detection device includes a door panel 5 which is arranged in the gas pipeline and closes the pipeline. The door panel 5 rotates around a fixed axis, and the fixed axis is arranged on one side of the gas pipeline. The door panel 5 is provided with a reset elastic member. In front of the door panel 5 in the opening direction, an infrared beam switch 6 is also provided. The infrared beam switch 6 keeps the emitted infrared rays parallel to the door panel 5 when reset, and the parallel distance is 2 to 5 mm. The infrared beam switch 6 has a switch signal output interface.

[0071] This scheme determines whether the gas is in use by detecting whether the door panel 5 is deflected. In this design, a door panel 5 is set in the gas channel, and the door panel 5 rotates around a fixed axis. The fixed axis is set on one side of the gas pipeline. The door panel 5 is closed in the gas channel under the action of elastic parts, such as torsion springs, tension springs, etc., and a beam infrared switch is set in the opening direction of the door panel 5. When the door panel 5 closes the gas channel, the distance between the beam infrared setting and the distance between the door panel 5 does not exceed 5mm. When the gas is used, the pressure difference in the gas pipeline drives the door panel 5 to rotate along the fixed axis, and then the deflected door panel 5 blocks the infrared between the beam infrared switch, thereby triggering the beam infrared switch to send a signal that the gas is in use to the signal acquisition input end of the control system, and the control system starts timing to start the safety process.

[0072] Embodiment 2:

[0073] It also includes a timer device 1, which includes a setting device for setting the timing duration and a timing signal output terminal; the control system also has a timer signal input terminal; the timing signal output terminal signal is connected to the timer signal input terminal of the control system.

[0074] In this embodiment, another active safety technical solution is provided. By setting a timer, the user of this embodiment can set the duration of gas use. At this time, the control system does not enter the timing monitoring process, but starts to the timing monitoring process. When the set timing duration is executed, the control system sends a signal to close the gas channel to the control signal input end of the electric control gas valve through the control output end, thereby actively closing the gas channel.

[0075] The setting device adopts a knob switch.

[0076] In this embodiment, the countdown starts after the knob switch is set to a certain time. During this period until the timing ends, the knob switch continuously transmits a signal to the control system indicating that the timer is running. When the timing ends, the running signal disappears. The control system promptly controls the electric control gas valve to close the gas channel according to whether the running signal disappears.

[0077] It also includes an equipment installation device, which includes a shell and a panel; the electric control gas valve and the control system are arranged in the shell; a timer and a reset switch 4 are arranged on the front of the panel; a sound generator 2 placement cavity and a pickup 3 placement cavity are arranged on the back of the panel, and the sound generator 2 placement cavity and the pickup 3 placement cavity are both provided with air vents facing the front of the panel.

[0078] In this embodiment, a mounting device is provided, the electric control valve and the control system are placed in the shell, the device requiring human-machine interaction, the knob switch of the timer, the reset switch 4, etc. are placed on the front of the panel, the sound generator 2 and the pickup 3 are installed on the back of the panel, and the sound generator 2 placement cavity and the pickup 3 placement cavity are respectively provided. The sound generator 2 placement cavity is provided with a piezoelectric ceramic speaker, and the diaphragm of the piezoelectric ceramic speaker faces the front of the panel; the pickup 3 placement cavity is provided with an electret microphone, and the pickup port of the electret microphone faces the front of the panel. There is an air vent between the sound generator 2 placement cavity, the pickup 3 placement cavity and the front of the panel, and the sound of the sound generator 2 can be emitted through the air vent, and the pickup 3 can receive the sound through the air vent. The various parts of this embodiment are integrated into one device through the mounting device, which is convenient for the installation and use of this embodiment.

[0079] A status indicator light is also provided on the panel; the status indicator light has a color display control input interface that displays red and green, and the control output end of the control system is connected to the color display control input interface.

[0080] In this embodiment, a status indicator light is provided on the panel to clearly display the current state of this embodiment. The status indicator light has two colors: red indicates that the electric-controlled gas valve is currently in a closed state and the control system is waiting to be reset; green indicates that the electric-controlled gas valve is in an open state and the control system is in a standby state. The user of this embodiment can make an operation choice according to the state of the status indicator light.

[0081] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described, ie, those features that are not relevant to the best mode of the invention or those features that are not relevant to implementing the invention.

[0082] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A gas active safety system, comprising an electric-controlled gas valve and a control system; the control output terminal signal of the control system is connected to the control signal input terminal of the electric-controlled gas valve; the characteristics are: The control system adopts a control system with a timer function, and the control system has a timer start signal input terminal for starting the timer function; Also included is a detection system, which includes a detection device and a detection signal output interface; The detection device includes a device for detecting the flow of gas; The detection signal output interface signal is connected to the timer start signal terminal of the control system; The control system also has an alarm control output terminal; It also includes an alarm prompt system, which includes a sounder and a sound input signal end. The alarm control output end signal of the control system is connected to the sound input signal end of the alarm prompt system.

2. The active gas safety system according to claim 1, characterized in that: The control system also has an input interface for triggering the reset function of the control system, which is called the reset input interface; It also includes a reset control device, which includes an output port for outputting a reset signal, referred to as a reset signal output port; The reset output terminal of the reset control device is connected to the reset input interface of the control system.

3. The active gas safety system according to claim 2, characterized in that: The reset control device uses an electronic switch, called a reset switch.

4. The active gas safety system according to claim 2, characterized in that: The reset control device adopts a pickup.

5. The active gas safety system according to claim 1, characterized in that: Also included is a voice recognition system, which includes a pickup for receiving sound and a voice recognition coding signal output interface; The control system has an input interface for receiving a speech recognition coding signal, which is called a speech recognition coding signal input interface; The speech recognition coding signal output interface of the speech recognition system is connected to the speech recognition coding signal input interface of the control system.

6. The active gas safety system according to claim 1, characterized in that: The detection device includes a door panel that is arranged in the gas pipeline and closes the pipeline. The door panel rotates around a fixed axis, and the fixed axis is arranged on one side of the gas pipeline. The door panel is provided with a reset elastic member. An infrared beam switch is also provided in front of the door panel in the opening direction. The infrared beam switch emits infrared rays parallel to the door panel when reset, and the parallel distance is 2 to 5 mm. The infrared beam switch has a switch signal output interface.

7. The active gas safety system according to claim 1, characterized in that: Also included is a timer device, which includes a setting device for setting the timing duration and a timing signal output terminal; The control system also has a timer signal input terminal; The timing signal output terminal signal is connected to the timer signal input terminal of the control system.

8. The active gas safety system according to claim 7, characterized in that: The setting device adopts a knob switch.

9. The active gas safety system according to any one of claims 1 to 8, characterized in that: Also included is an equipment installation device, which includes a housing and a panel; The electric-controlled gas valve and the control system are arranged in the housing; A timer and reset switch are set on the front of the panel; A sound generator placement cavity and a pickup placement cavity are arranged on the back of the panel, and both the sound generator placement cavity and the pickup placement cavity are provided with air vents toward the front of the panel.

10. The active gas safety system according to claim 8, characterized in that: The panel is also equipped with a status indicator light; The status indicator light has a color display control input interface that displays red and green colors, and the control output end of the control system is connected to the color display control input interface.

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