CN208156466U - kitchen environment safety monitoring system based on internet of things - Google Patents

kitchen environment safety monitoring system based on internet of things Download PDF

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Publication number
CN208156466U
CN208156466U CN201820586403.2U CN201820586403U CN208156466U CN 208156466 U CN208156466 U CN 208156466U CN 201820586403 U CN201820586403 U CN 201820586403U CN 208156466 U CN208156466 U CN 208156466U
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CN
China
Prior art keywords
gas
master controller
fixture block
motor
internet
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Expired - Fee Related
Application number
CN201820586403.2U
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Chinese (zh)
Inventor
王丽捷
李秋
孙康源
韩蓥檑
练养辰
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Tianjin University of Technology
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Tianjin University of Technology
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Priority to CN201820586403.2U priority Critical patent/CN208156466U/en
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Publication of CN208156466U publication Critical patent/CN208156466U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of kitchen environment safety monitoring system based on Internet of Things, including master controller, combustable gas concentration sensor, PM2.5 concentration sensor, gas lockout valve device, display screen, electric window-opening device, buzzer, GPRS communication module, the combustable gas concentration sensor and PM2.5 concentration sensor are separately connected master controller, the master controller connects GPRS communication module, carries out remote signal transmission by GPRS communication module;The display screen connects master controller, for showing PM2.5 concentration value, combustable gas concentration value;The buzzer connects master controller, for issuing buzzing alarm;The master controller connection gas lockout valve device and electric window-opening device, realize the control to burnt gas valve and window.The system can monitor the combustable gas concentration and PM2.5 concentration of kitchen environment, once exceeded can issue alarm signal, and control window opening and gas lockout valve, to effectively avoid life and property loss.

Description

Kitchen environment safety monitoring system based on Internet of Things
Technical field
The utility model belongs to kitchen environment security technology area, and in particular to a kind of kitchen environment peace based on Internet of Things Full monitoring system.
Background technique
PM2.5 is the killer being detrimental to health, and kitchen, can be containing big in the oil smoke that when culinary art generates since environment is special The PM2.5 (i.e. pellet of the partial size less than or equal to 2.5 microns) of amount.
Gas leakage refers to by surprisingly combustion gas being caused to leak in air from pipeline.Currently, gas heater, kitchen focus Tool be required to use combustion gas, be easy to encounter gas leakage phenomenon in use, as open fire is off, pipeline aging or Gas leakage caused by the kitchen range failure of person kitchen, once gas leakage phenomenon, the user inside the environment of space-closed occurs Intoxicating phenomenon can occur, or cause explosion, so that lives and properties are on the hazard.
With the development of technology of Internet of things, some monitorings that can monitor gas leakage have been had already appeared currently on the market Device, and be able to detect the monitor of PM2.5, but be the absence of one kind can monitor simultaneously combustable gas concentration, PM2.5 concentration with And the comprehensive kitchen environment safety monitoring system with alarm and respective handling mechanism.
In addition, also occur some kitchen kitchen range for being able to detect and leaking and being automatically closed currently on the market, but it is The kitchen range own switch of closing, and leakage point is likely to (combustion gas on the connection hose between gas pipeline and kitchen kitchen range Pipeline is connected with kitchen kitchen range by hose, the junction of hose and gas pipeline, hose and kitchen kitchen range junction most It is easy to happen leakage), therefore, in this case, even if closing the own switch of kitchen range, prevention gas leakage can not be played Purpose.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of kitchen environment peace based on Internet of Things Full monitoring system.The system can monitor the combustable gas concentration and PM2.5 concentration of kitchen environment, once exceeded can issue alarm Signal, and window opening and gas lockout valve are controlled, to effectively avoid life and property loss.
The utility model is achieved through the following technical solutions:
A kind of kitchen environment safety monitoring system based on Internet of Things, including master controller, combustable gas concentration sensor, PM2.5 concentration sensor, gas lockout valve device, display screen, electric window-opening device, buzzer, GPRS communication module and motor Driving circuit,
The combustable gas concentration sensor and PM2.5 concentration sensor are separately connected master controller, combustable gas concentration Sensor is used to detect the concentration of fuel gas in kitchen, and PM2.5 concentration sensor is used to detect the oil smoke concentration in kitchen;Institute It states master controller and the electric window-opening device is connected by motor-drive circuit;The master controller connects GPRS communication module, leads to It crosses GPRS communication module and carries out remote signal transmission;The display screen connects master controller, for showing PM2.5 concentration value, can Fire gas concentration value;The buzzer connects master controller, for issuing buzzing alarm;
The gas lockout valve device including the driving assembly being fixed on gas pipeline and is fixed on gas valve Spanner fixation kit on the spanner of door;
The driving component includes the first fixture block and the second fixture block, is provided on the first fixture block and the second fixture block and fuel gas conduit It is provided with the corresponding bolt hole in position on the interior concave arc that road matches, the first fixture block and the second fixture block, passes through screw bolt and nut First fixture block and the second fixture block are fixed on gas pipeline;Motor, the output shaft of motor are fixedly installed on the first fixture block One reel of upper fixed setting is provided with cable on reel;It is additionally provided with limit switch on the first fixture block, works as burnt gas valve Spanner closure in place after can be contacted with the limit switch;Drive control device, the drive are also connected in the first fixture block lower end Movement controller includes that microcontroller, motor drive module, voltage transformation module and AC-DC conversion module, microcontroller pass through electricity Machine drive module connects the motor;Microcontroller is connect with limit switch, and to receive the switching signal of limit switch, judgement is The spanner closure of no burnt gas valve is in place;The ac input end of AC-DC conversion module connects mains-supplied plug, and alternating current-direct current turns The DC output end for changing the mold block connects voltage transformation module, and voltage transformation module connects microcontroller and motor drive module is it Power supply;
The spanner fixation kit includes first clamping plate and second clamping plate, is provided with position in first clamping plate and second clamping plate First clamping plate and second clamping plate are fixed on the spanner of burnt gas valve by corresponding bolt hole by screw bolt and nut;First A threading bolt is provided on clamping plate, which is equipped with threading via hole;Cable on the reel of driving assembly is drawn It is penetrated after out in the threading via hole of threading bolt of spanner fixation kit, tightens threading bolt, realize cable and thread bolt It is fixed;
The microcontroller of the gas lockout valve device is connect with the master controller, by master controller to microcontroller Device sends signal, to control the motor action of gas lockout valve device.
In the above-mentioned technical solutions, the motor of gas lockout valve device is mounted by means of bolts on the first fixture block.
In the above-mentioned technical solutions, reel inner wall is provided with keyway, is provided with key on the output shaft of motor, passes through key The cooperation of slot and key realizes that reel is fixedly mounted on the output shaft of motor.
In the above-mentioned technical solutions, the cable is preferably wirerope.
In the above-mentioned technical solutions, the master controller uses STM32F103.
In the above-mentioned technical solutions, the electric window-opening device is chain type electric window opener.
In the above-mentioned technical solutions, the electric window-opening device is push-down electric window-opening device.
In the above-mentioned technical solutions, master controller connects mobile terminal by GPRS communication network.Further, mobile whole End is mobile phone.
It the advantages of the utility model and has the beneficial effect that:
This system combines combustable gas concentration monitoring function and PM2.5 concentration monitor function together, can monitor simultaneously The combustable gas concentration and PM2.5 concentration of kitchen environment, and it is dense by display screen real-time display combustable gas concentration value and PM2.5 Angle value enables a person to the environmental quality for seeing kitchen in real time, and kitchen personnel is facilitated to make respective reaction (such as windowing or smoke pumping Machine).And this system can voluntarily judge whether combustable gas concentration and PM2.5 concentration are exceeded, once exceeded can issue report Alert signal, and control window and open and automatically by gas lockout valve, to effectively avoid life and property loss.
Gas lockout valve device in the utility model, structure is simple, design rationally, it is at low cost, with it is existing from Dynamic shutdown strategy is compared, and the valve on gas pipeline can be directly closed, rather than closes kitchen kitchen range, to be better able to protect Demonstrate,prove the validity that combustion gas is closed.
The utility model also has remote monitoring function, and master controller can connect mobile terminal by GPRS communication network (mobile phone), when master controller judges that the concentration of fuel gas detected is greater than the secure threshold of setting, master controller can be to Mobile terminal (mobile phone) sends warning message, and user is reminded to have gas leakage.Mobile terminal (mobile phone) also can be to main control Device sends the control instruction of closing gas valve door and the control instruction of the starting of control electric window-opening device, closing.
Detailed description of the invention
Fig. 1 is the electric control structure schematic diagram of the whole system of the utility model.
Fig. 2 is the mechanical structure schematic diagram of gas lockout valve device.
Fig. 3 is the A of the driving assembly of gas lockout valve device to diagrammatic cross-section.
Fig. 4 is the side view of the spanner fixation kit in gas lockout valve device.
Fig. 5 is the structural schematic diagram of the threading bolt in spanner fixation kit.
Fig. 6 is the structural schematic diagram after gas lockout valve device is closed burnt gas valve spanner.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached Figure obtains other relevant drawings.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, combined with specific embodiments below into one Step illustrates the technical solution of the utility model.
Referring to attached drawing 1, a kind of kitchen environment safety monitoring system based on Internet of Things, including master controller, fuel gas Concentration sensor, PM2.5 concentration sensor, gas lockout valve device, display screen, electric window-opening device, buzzer, GPRS communication Module, motor-drive circuit, voltage transformation module and AC-DC conversion module.
The combustable gas concentration sensor and PM2.5 concentration sensor are separately connected master controller, combustable gas concentration Sensor is used to detect the concentration of fuel gas in kitchen, and PM2.5 concentration sensor is used to detect the oil smoke concentration in kitchen;Institute It states master controller and the electric window-opening device is connected by motor-drive circuit;The master controller connects GPRS communication module, leads to It crosses GPRS communication module and carries out remote signal transmission;The display screen connects master controller, for showing PM2.5 concentration value, can Fire gas concentration value;The buzzer connects master controller, for issuing buzzing alarm;The exchange of AC-DC conversion module inputs End connection mains-supplied line, the DC output end of AC-DC conversion module connect voltage transformation module, voltage transformation module connection Master controller, motor-drive circuit and GPRS communication module, being converted to suitable voltage by voltage transformation module is each module Power supply.
Referring to attached drawing 2-6, the gas lockout valve device, including be fixed on gas pipeline a driving assembly 1, with And it is fixed on the spanner fixation kit 2 on the spanner b of burnt gas valve.
The driving component 1 includes the first fixture block 1-1 and the second fixture block 1-2, is provided on the first fixture block and the second fixture block The corresponding bolt hole in position is provided on the interior concave arc matched with gas pipeline, the first fixture block and the second fixture block, in use, First fixture block and the second fixture block be fixed on gas pipeline a to (gas pipeline is accommodated in the first fixture block by screw bolt and nut And second between fixture block);Being fixedly installed motor 1-3 on the first fixture block 1-1, (motor is mounted by means of bolts on first On fixture block), a reel 1-4 is fixedly installed on the output shaft of motor, and (reel inner wall is provided with keyway, in the output shaft of motor On be provided with key, by the cooperation of keyway and key, realize that reel is fixedly mounted on the output shaft of motor), on reel 1-4 It is provided with cable 3;It is additionally provided with limit switch 1-5 on the first fixture block 1-1, it can after the spanner of burnt gas valve is closed in place It is contacted with the limit switch;It is also connected with drive control device 1-6 in the first lower end fixture block 1-1, the drive control device 1-6 includes Microcontroller, motor drive module, voltage transformation module and AC-DC conversion module, microcontroller are connected by motor drive module Meet the motor 1-3;Microcontroller is connect with limit switch 1-5, to receive the switching signal of limit switch, judges whether combustion gas The spanner closure of valve is in place;The ac input end of AC-DC conversion module connects mains-supplied plug, AC-DC conversion module DC output end connect voltage transformation module, voltage transformation module connects microcontroller and motor drive module, passes through voltage It is each module for power supply that conversion module, which is converted to suitable voltage,.
The spanner fixation kit 2 includes first clamping plate 2-1 and second clamping plate 2-2, is set in first clamping plate and second clamping plate It is equipped with the corresponding bolt hole in position, in use, first clamping plate and second clamping plate are fixed on burnt gas valve by screw bolt and nut Spanner b on (spanner of burnt gas valve is accommodated between first clamping plate and second clamping plate);One is provided in first clamping plate Bolt 2-3 is threaded, which is equipped with threading via hole 2-31;When installation, first by driving assembly 1 and spanner fixation kit 2 are respectively and fixedly installed on the spanner b of gas pipeline a and burnt gas valve that (when installation, the spanner b of burnt gas valve is in open shape State), the threading via hole of the threading bolt of spanner fixation kit is penetrated after then pulling out the cable 4 on the reel of driving assembly In 2-31, then tighten threading bolt, can be realized cable 4 and thread bolt 2-3 fixation, thus realize reel 1-4 with Cable connection between spanner fixation kit 2;The cable 3 is preferably wirerope.
The microcontroller of the gas lockout valve device is connect with the master controller, by master controller to microcontroller Device sends signal, to control the motor action of gas lockout valve device.
The operation logic of this system is as follows:
By combustable gas concentration sensor and PM2.5 concentration sensor detect respectively the concentration of fuel gas in kitchen with And oil smoke concentration, and will test signal and be sent to master controller, after master controller processing, by the concentration value and oil of fuel gas Smoke density value signal is sent to display screen, to show the concentration value and oil smoke concentration value of fuel gas;When master controller judges When the concentration of fuel gas detected is greater than the secure threshold of setting and when PM2.5 concentration is greater than the secure threshold of setting, Then master controller sends signal to buzzer, and buzzer is made to issue buzzing alarm;Master controller can also be sent to display screen simultaneously Coherent signal makes display screen display alarm information.
In addition, when master controller judges the concentration of fuel gas detected greater than the secure threshold set, main control Device can also send to the microcontroller of gas lockout valve device and close valve signal, and microcontroller drives electricity after receiving the signal Machine 1-3 movement, motor 1-3 drive reel 1-4 to rotate synchronously, and reel 1-4 is pulled to the spanner b of burnt gas valve by cable Reel just triggers limit switch 1-5 (referring to Fig. 6) after the spanner b of burnt gas valve is closed in place, and microcontroller receives After the limit signal sent to limit switch 1-5, control motor stops.
In addition, when master controller judges the concentration of fuel gas detected greater than the secure threshold set, main control Device controls electric window-opening device starting, opens the window, to prevent poisoning or explosion danger occurs.
Master controller can by GPRS communication network connect mobile terminal (mobile phone), when master controller judge it is detected When the concentration of fuel gas is greater than the secure threshold of setting, master controller can send warning message to mobile terminal (mobile phone), mention Awake user has gas leakage.Mobile terminal (mobile phone) also can to master controller send closing gas valve door control instruction with And the control instruction of the starting of control electric window-opening device, closing.
Further, the master controller uses STM32F103, which is that (ST) company of STMicw Electronics produces, Kernel is Cortex-M3.The size of Flash can be divided into three categories in the family chip press piece:Low capacity (16K and 32K), middle appearance Measure (64K and 128K), large capacity (256K, 384K and 512K).Integrated chip timer, CAN, ADC, SPI, I2C, USB, UART, etc. multiple functions.
Further, the electric window-opening device is chain type electric window opener or push-down electric window-opening device.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc. The protection scope of the utility model is each fallen with replacement.

Claims (9)

1. a kind of kitchen environment safety monitoring system based on Internet of Things, it is characterised in that:It is dense including master controller, fuel gas It spends sensor, PM2.5 concentration sensor, gas lockout valve device, display screen, electric window-opening device, buzzer, GPRS and communicates mould Block and motor-drive circuit,
The combustable gas concentration sensor and PM2.5 concentration sensor are separately connected master controller, combustable gas concentration sensing Device is used to detect the concentration of fuel gas in kitchen, and PM2.5 concentration sensor is used to detect the oil smoke concentration in kitchen;The master Controller connects the electric window-opening device by motor-drive circuit;The master controller connects GPRS communication module, passes through GPRS communication module carries out remote signal transmission;The display screen connects master controller, for showing PM2.5 concentration value, flammable Gas concentration value;The buzzer connects master controller, for issuing buzzing alarm;
The gas lockout valve device including the driving assembly being fixed on gas pipeline and is fixed on burnt gas valve Spanner fixation kit on spanner;
The driving component includes the first fixture block and the second fixture block, is provided with and gas pipeline phase on the first fixture block and the second fixture block The interior concave arc of cooperation is provided with the corresponding bolt hole in position on the first fixture block and the second fixture block, by screw bolt and nut by the One fixture block and the second fixture block are fixed on gas pipeline;It is fixedly installed motor on the first fixture block, consolidates on the output shaft of motor One reel is set surely, is provided with cable on reel;It is additionally provided with limit switch on the first fixture block, when pulling for burnt gas valve Hand closure can contact after in place with the limit switch;Drive control device, the driving control are also connected in the first fixture block lower end Device processed includes microcontroller, motor drive module, voltage transformation module and AC-DC conversion module, and microcontroller is driven by motor Dynamic model block connects the motor;Microcontroller is connect with limit switch, to receive the switching signal of limit switch, judges whether to fire The spanner closure of air valve is in place;The ac input end of AC-DC conversion module connects mains-supplied plug, AC-DC conversion mould The DC output end of block connects voltage transformation module, and voltage transformation module connection microcontroller and motor drive module supply for it Electricity;
The spanner fixation kit includes first clamping plate and second clamping plate, and it is corresponding that position is provided in first clamping plate and second clamping plate Bolt hole, first clamping plate and second clamping plate are fixed on the spanner of burnt gas valve by screw bolt and nut;In first clamping plate On be provided with a threading bolt, the threading bolt be equipped with threading via hole;After cable on the reel of driving assembly is pulled out It penetrates in the threading via hole of threading bolt of spanner fixation kit, tightens threading bolt, realize cable and thread the fixation of bolt;
The microcontroller of the gas lockout valve device is connect with the master controller, is sent out by master controller to microcontroller The number of delivering letters, to control the motor action of gas lockout valve device.
2. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 1, it is characterised in that:Combustion gas The motor of valve door closing device is mounted by means of bolts on the first fixture block.
3. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 1, it is characterised in that:Coiling Wheel inner wall is provided with keyway, is provided with key on the output shaft of motor, by the cooperation of keyway and key, realizes the fixed peace of reel On the output shaft of motor.
4. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 1, it is characterised in that:It is described Cable is wirerope.
5. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 1, it is characterised in that:It is described Master controller uses STM32F103.
6. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 1, it is characterised in that:It is described Electric window-opening device is chain type electric window opener.
7. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 1, it is characterised in that:It is described Electric window-opening device is push-down electric window-opening device.
8. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 1, it is characterised in that:Master control Device processed connects mobile terminal by GPRS communication network.
9. a kind of kitchen environment safety monitoring system based on Internet of Things according to claim 8, it is characterised in that:It is mobile Terminal is mobile phone.
CN201820586403.2U 2018-04-23 2018-04-23 kitchen environment safety monitoring system based on internet of things Expired - Fee Related CN208156466U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820586403.2U CN208156466U (en) 2018-04-23 2018-04-23 kitchen environment safety monitoring system based on internet of things

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820586403.2U CN208156466U (en) 2018-04-23 2018-04-23 kitchen environment safety monitoring system based on internet of things

Publications (1)

Publication Number Publication Date
CN208156466U true CN208156466U (en) 2018-11-27

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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112641346A (en) * 2020-12-01 2021-04-13 江苏九晖科技有限公司 Gas leakage prevention gas oven
CN113066266A (en) * 2021-03-17 2021-07-02 褚永锋 Intelligent combustible gas monitoring and protecting system based on Internet of things
CN113217695A (en) * 2021-04-28 2021-08-06 西安量子智能科技有限公司 Explosion-proof device capable of automatically closing pipeline valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112641346A (en) * 2020-12-01 2021-04-13 江苏九晖科技有限公司 Gas leakage prevention gas oven
CN113066266A (en) * 2021-03-17 2021-07-02 褚永锋 Intelligent combustible gas monitoring and protecting system based on Internet of things
CN113066266B (en) * 2021-03-17 2023-11-10 褚永锋 Intelligent combustible gas monitoring and protecting system based on Internet of things
CN113217695A (en) * 2021-04-28 2021-08-06 西安量子智能科技有限公司 Explosion-proof device capable of automatically closing pipeline valve

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181127

Termination date: 20200423

CF01 Termination of patent right due to non-payment of annual fee