CN211650354U - Gas control system based on radar response - Google Patents

Abstract

The utility model belongs to the technical field of gas safety control systems, in particular to a gas control system based on radar sensing, which comprises an air valve arranged on a gas pipeline between gas equipment and a gas source, wherein the air valve is connected with a control box for controlling the switch of the air valve, and the control box is wirelessly connected with a detector; the detector includes the operation chip, is used for providing the power module of power, is used for detecting the gas detection module whether the gas exceeds standard, is used for responding to the motion detection module whether there is personnel's activity in the scene, is used for handling the touch-control response button module that the button produced the signal of telecommunication, the utility model discloses a design of motion detection module can the detection range in the human motion condition, realizes when someone in the kitchen cooks, and the gas can not be closed, can be detected by radar motion detector when someone is in the kitchen activity, leaves the kitchen when the people, will the automatic cutout air supply when exceeding a period of time and not detecting human motion in succession, can further strengthen the security of using gas.

Description

Gas control system based on radar response

Technical Field

The utility model relates to a gas safety control system technical field refers in particular to a gas control system based on radar response.

Background

With the development of science and technology, more and more combustible gases are applied to industrial production and daily life of people as energy sources, and equipment such as a gas water heater, a gas stove and the like brings great convenience to the life of people, and becomes an indispensable necessary living facility for families. However, the combustible gas brings great convenience to people and has great hidden danger. In use, there is a possibility of leakage of combustible gas, and toxic gas such as carbon monoxide is generated while the above apparatus is normally used, and once the indoor ventilation condition is not ideal, the combustible gas/toxic gas will continuously accumulate in the enclosed space. When the combustible gas leaks to reach the explosion limit, accidents such as combustion, explosion and the like can be caused once the combustible gas has the action of a fire source, so that serious economic loss is caused, and even the life safety of people in and around a room can be endangered; toxic gases can also be life threatening.

Therefore, when the gas equipment is used, the combustible gas/toxic gas must be detected on site in real time, a reliable safety detection instrument is adopted, the concentration of the gas in the environment is strictly monitored, accident potential hazards are discovered as soon as possible, effective measures are taken, the accident is avoided, and the safety of family life can be ensured.

For example, the fuel gas safety control system disclosed in [ chinese utility model ] CN201720657546.3 includes more than one solenoid valve, more than one control box and a detector, wherein the control box is connected with the solenoid valve for controlling the solenoid valve to open and close; the detector is connected with the control box and is communicated with the control box; the detector comprises a first power supply module, a gas detection module, a first temperature detection module, a touch key module, a first operation chip and a first wireless module; the gas detection module is connected with the first operation chip and is used for detecting whether the concentrations of methane, CO and smoke exceed the standard or not; the first temperature detection module is connected with the first operation chip and used for detecting whether the temperature exceeds the standard or not; the touch key module is connected with the first operation chip and used for inputting an operation signal to the first operation chip; the first wireless module is connected with the first operation chip and is used for forming wireless connection with the control box, the gas safety control system can sense gas leakage in time and automatically drive a plurality of electromagnetic valves connected with the gas safety control system, and operation is convenient.

The products are a 'lag, passive' type prevention scheme no matter how the prevention and the measures are, early warning and timely containment cannot be realized, the hidden danger of fire caused by gas cannot be fundamentally eliminated, people often forget to shut down the fire because of other things, so that a lot of property loss and casualties are caused, the core reason is not gas leakage but is caused by human negligence, and the times of fire caused by the accidents are far greater than the accidents caused by gas leakage, so the scheme for realizing gas monitoring based on the concentration of the gas leakage cannot prevent the accidents from happening at all.

Disclosure of Invention

The utility model aims at providing a gas control system based on radar response through the motion detection module, solves because of the stove fire long term leaves the people and does not have the guard, causes the pot to be full of water and spills over flameout gas and leak or anhydrous dry combustion method, the problem that serious gas waste and fire incident that lead to cause.

The purpose of the utility model is realized like this: a fuel gas control system based on radar induction comprises an air valve arranged on a fuel gas pipeline between gas equipment and a gas source, wherein the air valve is connected with a control box for controlling the opening and closing of the air valve, and the control box is wirelessly connected with a detector; a motion detection module is arranged in the detector, and the motion detection module is a Doppler radar sensor and is used for sensing the activity of field personnel.

Preferably, still be provided with the pronunciation module that is used for voice prompt in the detector, pronunciation module is connected with the operation chip, and pronunciation module is connected with loudspeaker including NVC pronunciation chip, NVC pronunciation chip.

Preferably, a display module for liquid crystal display is further arranged in the detector, and the display module is connected with the operation chip.

Preferably, an indicator light module is further arranged in the detector, the indicator light module is connected with the operation chip, and the indicator light module comprises a light emitting diode and a resistor connected with the light emitting diode.

Preferably, the wireless connection between the control box and the detector adopts 2.4.Ghz zigbee wireless communication technology.

Preferably, the intelligent socket is used as a communication relay of the detector and the control box.

Preferably, an operation chip is further arranged in the detector, and the operation chip is a CC2530F256 chip.

Preferably, a power supply module for supplying power is further arranged in the detector.

Preferably, a gas detection module for detecting whether the fuel gas exceeds the standard is further arranged in the detector, and the gas detection module comprises a combustible gas sensor.

Preferably, a touch sensing key module for processing keys to generate electric signals is further arranged in the detector.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model discloses a design of motion detection module, can the human motion condition in the detection range, realize when someone cooks in the kitchen, the gas can not be turned off, can be detected by radar motion detector when someone is in the kitchen activity, when the motion signal that the detector detected is received to main chip, clear 0 with the time-recorder, restart timing, leave behind the kitchen over the time of settlement when the people, the setting value is 20 minutes usually, exceed in succession that will the automatic cutout air supply when a period of time does not detect human motion, can further strengthen the security of using gas.

Drawings

Fig. 1 is a block diagram of the system structure of the present invention.

Fig. 2 is a circuit diagram of the arithmetic chip.

Fig. 3 is a circuit diagram of a power supply module.

Fig. 4 is a circuit diagram of a gas detection module.

Fig. 5 is a circuit diagram of a motion detection module.

Fig. 6 is a circuit diagram of the touch sensing key module.

Fig. 7 is a circuit diagram of a speech module.

Fig. 8 is a circuit diagram of the display module.

Fig. 9 is a circuit diagram of an indicator light module.

Reference numerals: 1-an air valve; 2-a control box; 3-a detector; 4-an operation chip; 5-a power supply module; 6-a gas detection module; 7-a motion detection module; 8-touch induction key module; 9-a voice module; 10-a display module; 11-an indicator light module; 12-smart socket.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-9.

A fuel gas control system based on radar induction.

The system comprises an intelligent detector, a valve control box, a gas valve and an intelligent socket, wherein a high-stability semiconductor type gas sensor is selected for sensing of the system, an import microprocessor is adopted, the system has the characteristics of high stability, small sensitivity drift and the like, the communication of the system adopts a 2.4Ghz zigbee wireless communication technology, the system has the characteristics of strong anti-jamming capability, automatic identification, automatic pairing and the like, when the detector detects that combustible gas exists, the current gas concentration is displayed, and when the alarm concentration is reached, an alarm signal is sent out, the gas valve is closed and a ventilation device inserted on the intelligent socket is opened at the same time, and the system has the functions of fault self-detection and automatic opening and closing of the valve according to the motion of a human body.

As shown in fig. 1, the gas valve comprises a gas valve 1 arranged on a gas pipeline between gas equipment and a gas source and used for controlling the on-off of gas, the gas valve 1 is connected with a control box 2 for controlling the on-off of the gas valve, the control box 2 is wirelessly connected with a detector 3, the detector 3 is used for detecting the concentration of combustible gas in ambient air and wirelessly transmitting the detected information to the control box 2, when the concentration of the combustible gas reaches or exceeds an alarm set concentration value, the detector automatically enters an alarm state, and the gas valve 1 is controlled to be closed through the control box 2, so that a pipeline valve is closed; the detector 3 comprises an operation chip 4, wherein the operation chip 4 is a CC2530F256 chip, a power module 5 for providing power, a gas detection module 6 for detecting whether gas exceeds standard, a motion detection module 7 for sensing whether personnel activity exists on site, and a touch sensing key module 8 for processing key-press generated electric signals, the power module 5, the gas detection module 6, the motion detection module 7 and the touch sensing key module 8 are respectively connected with the operation chip 4, specifically, as shown in FIG. 5, the motion detection module 7 is a Doppler radar sensor, and a digital circuit is used for constructing and operating through the operation chip 4, so that the circuit is simple, the stability is good, the motion condition of a human body in a detection range can be detected, when someone in a kitchen cooks, the gas cannot be turned off, when someone is in the kitchen and moves, the motion detector can detect the motion signal when the main chip receives the motion signal detected by the detector, the timer is cleared to 0, the timing is restarted, when the time set by the user is over after the user leaves the kitchen, the set value is usually 20 minutes, and when the time continuously exceeds a period of time and the movement of the human body is not detected, the air source is automatically cut off, so that the safety of air utilization can be further enhanced.

Specifically, referring to fig. 2, the operation chip 4, the CC2530F256, the RF transceiver of 2.4-GHz IEEE 802.15.4, the control box 2 and the detector 3 are wirelessly connected by a 2.4GHz zigbee wireless communication technology, and the device has the characteristics of strong anti-interference capability, automatic identification and automatic peer-to-peer configuration, and is capable of avoiding the problem of line arrangement and reducing the arrangement cost of cables by communicating in a wireless manner.

Specifically referring to fig. 3, the power module 5 includes a power chip SM7012, a voltage regulation chip AMS1117, and an optocoupler-PC 817D-patch.

With particular reference to FIG. 4, the gas detection module 6 comprises a low power operational amplifier SGM8045-N5-SOT23-5, MC 105-bright-sensor.

Referring to fig. 6, the touch sensing button module 8 includes a processing chip MSP430G2332IPW 20R.

The intelligent ventilation and air-conditioning device is characterized by further comprising an intelligent socket 12 used for being used as a communication relay of the detector 3 and the control box 2, wherein the intelligent socket 12 can be used for providing access for ventilation and air-conditioning equipment and performing linkage control, the intelligent socket 12 receives a control command of the detector 3 to drive switching of the ventilation and air-conditioning equipment, the intelligent socket 12 is connected with the detector 3 and receives the control command of the detector 3 or sends a state signal to the control box 2.

Specifically referring to fig. 7, a voice module 9 for voice prompt is further arranged in the detector 3, the voice module 9 includes an NVC voice chip, the voice module 9 is connected with the operation chip 4, and when the gas concentration reaches or exceeds the alarm set concentration value, the detector 3 will send out an alarm sound through a horn connected with the voice module 9, so as to remind a user of improving the alertness.

Specifically referring to fig. 8, a display module 10 for liquid crystal display is further disposed in the detector 3, the display module 10 includes an LCD driver chip-HT 1621B-a patch SSOP48, the display module 10 is connected to the operation chip 4, and the display module 10 can display the current gas concentration, time, and the like.

Specifically referring to fig. 9, an indicator light module 11 is further arranged in the detector 3, the indicator light module 11 includes a light emitting diode, the indicator light module 11 is connected with the operation chip 4, and when the gas concentration reaches or exceeds the alarm set concentration value, the detector 3 lights a red light through the indicator light module 11.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a gas control system based on radar response which characterized in that: the gas valve (1) is arranged on a gas pipeline between gas equipment and a gas source, the gas valve (1) is connected with a control box (2) for controlling the switch of the gas valve, and the control box (2) is wirelessly connected with a detector (3); a motion detection module (7) is arranged in the detector (3), and the motion detection module (7) is a Doppler radar sensor and used for sensing the activities of field personnel.

2. The radar induction based gas control system of claim 1, wherein: still be provided with voice module (9) that are used for voice prompt in detector (3), voice module (9) are connected with operation chip (4), and voice module (9) are connected with loudspeaker including NVC pronunciation chip, NVC pronunciation chip.

3. The radar induction based gas control system of claim 1, wherein: the detector (3) is also internally provided with a display module (10) for liquid crystal display, and the display module (10) is connected with the operation chip (4).

4. The radar induction based gas control system of claim 1, wherein: the detector (3) is also internally provided with an indicator light module (11), the indicator light module (11) is connected with the operation chip (4), and the indicator light module (11) comprises a light-emitting diode and a resistor connected with the light-emitting diode.

5. The radar induction based gas control system of claim 1, wherein: the wireless connection between the control box (2) and the detector (3) adopts 2.4Ghz zigbee wireless communication technology.

6. The radar induction based gas control system of claim 1, wherein: the intelligent socket (12) is used as a communication relay of the detector (3) and the control box (2).

7. The radar induction based gas control system of claim 1, wherein: an operation chip (4) is further arranged in the detector (3), and the operation chip (4) is a CC2530F256 chip.

8. The radar induction based gas control system of claim 1, wherein: and a power supply module (5) for supplying power is also arranged in the detector (3).

9. The radar induction based gas control system of claim 1, wherein: and a gas detection module (6) for detecting whether the fuel gas exceeds the standard is further arranged in the detector (3), and the gas detection module (6) comprises a combustible gas sensor.

10. The radar induction based gas control system of claim 1, wherein: and a touch control induction key module (8) for processing keys to generate electric signals is also arranged in the detector (3).

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