CN207115708U - A kind of kitchen fuel gas alarm - Google Patents

Abstract

The utility model discloses a kind of kitchen fuel gas alarm, the alarm includes gas collecting module, A/D converter module, temperature collect module, remote control module, LCD MODULE, sound and light alarm module, wireless communication module and central controller, the collection output end of the gas collecting module is connected by A/D converter module with the central controller, and the temperature collect module, remote control module, LCD MODULE, sound and light alarm module and wireless communication module are connected with the central controller respectively.Alarm lamp is opened when the gas concentration value that alarm of the present utility model detects exceedes given threshold, buzzer sends alarm and send information to target mobile phones terminal and carries out real-time reminding, so as to monitor the gas leakage situation in kitchen in real time, is eliminated safe hidden trouble.

Description

A kind of kitchen fuel gas alarm

Technical field

It the utility model is related to gas alarm technical field, more particularly to a kind of kitchen fuel gas alarm.

Background technology

Fuel gas alarm is micro-processor controlled security alarm device, and it is widely used in oil, chemical industry, metallurgy, mine, oil gas The departments such as storehouse, combustion-gas jet test factory, restaurant, catering industry, residential building kitchen etc. etc. are can be used for, with entering for society The development of step and science and technology, the living standard of people are improved, and combustion gas progresses into our family, and it gives us the side of bringing Just also brought us while to endanger, once occurrence of large-area is revealed, disposal may trigger huge explosion not in time, to us The security of the lives and property bring threat.Every year, due to combustion that gas leakage caused by improper use and ageing equipment in turn results in Gas poisoning accident happens occasionally, and What is more, because of indoor fuel gas excessive concentration, causes the accident of gas explosion is quite a few to see；Cause This detection and alarm to combustion gas is a necessary job.Present situation is, it is necessary to have developed a kind of gas leakage alarming device accordingly The leak case of combustion gas is timely and accurately detected, so as to effectively prevent the hair because of combustion gas using the unexpected storms triggered It is raw, to improve the safety of vast gas user, disaster reduction and prevention tool is of great significance.

Utility model content

The purpose of this utility model is to provide a kind of kitchen fuel gas alarm, real according to alarm of the present utility model energy When detect kitchen internal combustion leakage situation, and automatic start kitchen ventilator exhaust leakage combustion gas and close combustion gas, so as to effectively The generation using the unexpected storms triggered because of combustion gas is prevented, it is above-mentioned in order to realize to improve the safety of vast natural gas user Purpose, the utility model use following technique effect：

According to one side of the present utility model, there is provided a kind of kitchen fuel gas alarm, the alarm include gas Acquisition module, A/D converter module, temperature collect module, remote control module, LCD MODULE, sound and light alarm module, nothing Line communication module, central controller and power supply, the collection output end of the gas collecting module pass through A/D converter module It is connected with the central controller, the temperature collect module, remote control module, LCD MODULE, sound and light alarm module It is connected respectively with the central controller with wireless communication module, the gas collecting module, A/D converter module, temperature are adopted Collect the power supply of module, remote control module, LCD MODULE, sound and light alarm module, wireless communication module and central controller End is electrically connected with the power output end of the power supply respectively.

Preferably, the alarm also includes drive control module, relay control switch, scavenger fan and is arranged on Gas switch valve on the conveyance conduit of combustion gas, the output control terminal of the central controller by drive control module respectively with The input control terminal of relay control switch, the electrical connection of the input control terminal of gas switch valve, the relay control switch Output control terminal connect with exhaust fan downlink connection.

Preferably, the sound and light alarm module includes triode Q1, triode Q2, resistance R1, resistance R2, resistance R3, hair Optical diode D1, limiter diode D2 and buzzer, the base stage of the triode Q1 pass through resistance R1 and the central controller Control interface connection, triode Q2 base stage is connected by resistance R2 with the control interface of the central controller, described three Pole pipe Q1 emitter stage is connected with the colelctor electrode of the triode Q2, triode Q2 emitter stage difference resistance R3 one end, The negative pole connection of limiter diode D2 anode, buzzer, the moon of the other end of the resistance R3 and the light emitting diode D1 Pole connects, the positive pole of the anode of the light emitting diode D1, limiter diode D2 negative electrode and buzzer respectively with power supply Power output end connection, the colelctor electrode of the triode Q1 is connected to ground.

Preferably, the gas collecting module include gas sensor, advance signal amplifying circuit, signal transformation circuit and Rearmounted amplifying circuit, the output end of the gas sensor pass sequentially through pre-amplification circuit, signal transformation circuit with it is described after Amplifying circuit connection is put, the output end of the rearmounted amplifying circuit is connected with the signal acquisition terminal of the A/D converter.

Preferably, institute's wireless communication module is gsm wireless communication module.

The utility model employs above-mentioned technical proposal, and the utility model has following technique effect：

(1) alarm of the present utility model uses the gas report of MQ-5 gas sensors and singlechip technology for core design Alert device realizes sound and light of alarm, its simple in construction, stable performance, easy to use, cheap, intelligentized alarm, should Alarm has the advantages that high sensitivity, responds fast, strong antijamming capability, and cheap, service life length.

(1) the utility model is also adjusted using infrared remote control control module to the upper lower limit value of detectable concentration in kitchen Section, its is simple to operate；The utility model can not only send the alarm of sound and light, additionally it is possible to and it is logical to start switch to open Wind ventilation operation, the safe handling that burnt gas valve realizes combustion gas is simultaneously closed off, when the gas concentration value detected exceedes setting threshold During value, alarm lamp is opened, buzzer sends alarm, at the same time, is sent information to target mobile phones terminal and is carried out real-time reminding, So as to monitor the gas leakage situation in kitchen in real time, the fire and combustion gas intoxication accident of gas leakage initiation are effectively prevented from, is disappeared Except potential safety hazard.

Brief description of the drawings

Fig. 1 is a kind of kitchen fuel gas alarm work theory diagram of the utility model；

Fig. 2 is the schematic diagram of sound and light alarm module of the present utility model.

Embodiment

For the purpose of this utility model, technical scheme and advantage is more clearly understood, referring to the drawings and enumerate excellent Embodiment is selected, the utility model is further described.However, it is necessary to illustrate, many details listed in specification It is specific even without these just for the sake of making reader have a thorough explanation to one or more aspects of the present utility model Details can also realize it is of the present utility model these aspect.

As shown in figure 1, according to a kind of kitchen fuel gas alarm of the present utility model, the alarm includes gas collecting mould Block, A/D converter module, temperature collect module, remote control module, LCD MODULE, sound and light alarm module, radio communication Module, central controller and power supply, the collection output end of the gas collecting module by A/D converter module with it is described Central controller connects, the temperature collect module, remote control module, LCD MODULE, sound and light alarm module and wireless Communication module is connected with the central controller respectively, the gas collecting module, A/D converter module, temperature collect module, Remote control module, LCD MODULE, sound and light alarm module, wireless communication module and central controller power end respectively with The power output end electrical connection of the power supply, in the utility model, the remote control module is red using HS0038 Outer remote control circuit to the upper lower limit value of detectable concentration and is adjusted as the infrared signal that signal reception remote control is launched, described Alarm also includes drive control module, relay control switch, scavenger fan and is arranged on the conveyance conduit of combustion gas Gas switch valve, the gas switch valve can also be arranged on combustion gas in addition at the access interface for being arranged on gas pipeline The gas transmission exit of bottle, and gas switch valve controls being switched on or switched off for combustion gas；The output control terminal of the central controller leads to The input control terminal with relay control switch, the input control terminal of gas switch valve electrically connect control module of overdriving respectively Connect, output control terminal and the exhaust fan downlink connection of the relay control switch connect.

The gas collecting module includes gas sensor, advance signal amplifying circuit, signal transformation circuit and rear storing Big circuit, the output end of the gas sensor pass sequentially through pre-amplification circuit, signal transformation circuit and the rearmounted amplification Circuit is connected, and the pre-amplification circuit and rearmounted amplifying circuit are all amplified using OP07 comparison amplifier chips, signal Shaping circuit carries out signal shaping using the low pass filter of OP07 comparison amplifiers composition.The output end of the rearmounted amplifying circuit It is connected with the signal acquisition terminal of the A/D converter.The temperature collect module using can the DS18B20 digital temperatures of networking pass Sensor chip.The gas sensor model MQ-5 gas sensors that the gas collecting module is selected realize the inspection to gas Survey, have the advantages that high sensitivity, response be fast, strong antijamming capability, and cheap, service life length, its output end and A/D converter module connects, and gas signal is converted into the recognizable data signal of central controller, at central controller Data after processing and are analyzed by reason, if more than or equal to default alarming value (namely alarm limit), if greater than Then can automatic start alarm module send alarm sound, on the contrary then be normal condition, the utility model uses triode and relay Drive control module difference gas switch valve that device is formed, control scavenger fan, when having gas leakage or temperature in kitchen environment Degree rise, the temperature value that the concentration value and temperature sensor of gas sensor output collection combustion gas are gathered in kitchen are controlled by center Device analyzing and processing processed, if gas concentration is more than or equal to alarming value set in advance in kitchen environment, and reaches predetermined Concentration or temperature, driving LCD LCD MODULEs can be allowed to carry out display for central controller and sound and light alarm module is alarmed (alarm for sending sound and light), central controller simultaneously start switch to open compound ventilation air-changing device, it is real to close gas switch valve The safe handling of existing combustion gas.

In the utility model, as shown in Fig. 2 the central controller uses AT89C52 singlechip chips, the acousto-optic report Alert module include triode Q1, triode Q2, resistance R1, resistance R2, resistance R3, light emitting diode D1, limiter diode D2 and Buzzer PY, the triode Q1 base stage are connected by resistance R1 with the control interface P2.0 of the central controller, described Triode Q2 base stage is connected by resistance R2 with the control interface P3.4 of the central controller, the transmitting of the triode Q1 Pole is connected with the colelctor electrode of the triode Q2, triode Q2 emitter stage difference resistance R3 one end, limiter diode D2 Anode, buzzer PY negative pole connection, the other end of the resistance R3 is connected with the negative electrode of the light emitting diode D1, described The positive pole of light emitting diode D1 anode, the limiter diode D2 negative electrode and buzzer PY power supply with power supply VCC respectively Output end connects, wherein, the operating voltage of power supply VCC outputs is 5V, and the colelctor electrode of the triode Q1 is connected to ground.Gas Temperature value in body sensor collection gas concentration value, temperature sensor collection kitchen, institute's wireless communication module lead to for gsm wireless Believe module.When the gas concentration value detected exceedes given threshold, warning lamp is opened, buzzer PY sends alarm, with this Meanwhile gsm wireless communication module sends warning message to target mobile phones terminal, and warning message is sent in gsm wireless and led to Default contact person in mould is believed, so as to carry out warning reminding, when gas sensor exports the concentration value and temperature biography of collection combustion gas Sensor collection kitchen in temperature value analyzed and processed by central controller, if in kitchen environment gas concentration and temperature be more than or When person is equal to alarming value set in advance, the control interface P2.0 output high level of the central controller, the center control The control interface P3.4 outputs 37.1kHz of device pulse signal, makes buzzer PY and light emitting diode D1 with 37.1kHz pulse Signal sends very brief alarm sound or blinking light.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (5)

1. A kind of 1. kitchen fuel gas alarm, it is characterised in that：The alarm include gas collecting module, A/D converter module, Temperature collect module, remote control module, LCD MODULE, sound and light alarm module, wireless communication module, central controller and Power supply, the collection output end of the gas collecting module are connected by A/D converter module with the central controller, institute State temperature collect module, remote control module, LCD MODULE, sound and light alarm module and wireless communication module respectively with it is described Central controller connects, the gas collecting module, A/D converter module, temperature collect module, remote control module, liquid crystal Display module, sound and light alarm module, the power end electricity with the power supply respectively of wireless communication module and central controller Source output terminal is electrically connected.
2. A kind of 2. kitchen fuel gas alarm according to claim 1, it is characterised in that：The alarm also includes driving control Molding block, relay control switch, scavenger fan and the gas switch valve being arranged on the conveyance conduit of combustion gas, the center The output control terminal of controller passes through drive control module the input control terminal with relay control switch, gas switch valve respectively The electrical connection of input control terminal, the output control terminal of the relay control switch is connected with exhaust fan.
3. A kind of 3. kitchen fuel gas alarm according to claim 1, it is characterised in that：The sound and light alarm module includes three Pole pipe Q1, triode Q2, resistance R1, resistance R2, resistance R3, light emitting diode D1, limiter diode D2 and buzzer, described three Pole pipe Q1 base stage is connected by resistance R1 with the control interface of the central controller, and triode Q2 base stage passes through resistance R2 It is connected with the control interface of the central controller, the colelctor electrode of the emitter stage of the triode Q1 and the triode Q2 connects Connect, the negative pole connection of the triode Q2 emitter stage difference resistance R3 one end, limiter diode D2 anode, buzzer, institute The other end for stating resistance R3 is connected with the negative electrode of the light emitting diode D1, the anode of the light emitting diode D1, the pole of amplitude limit two Pipe D2 negative electrode and the positive pole of buzzer are connected with the power output end of power supply respectively, the colelctor electrode of the triode Q1 with Ground connects.
4. A kind of 4. kitchen fuel gas alarm according to claim 1, it is characterised in that：The gas collecting module includes gas Body sensor, advance signal amplifying circuit, signal transformation circuit and rearmounted amplifying circuit, the output end of the gas sensor according to It is secondary to be connected by pre-amplification circuit, signal transformation circuit with the rearmounted amplifying circuit, the output end of the rearmounted amplifying circuit It is connected with the signal acquisition terminal of the A/D converter.
5. A kind of 5. kitchen fuel gas alarm according to claim 1, it is characterised in that：Institute's wireless communication module be GSM without Line communication module.