CN106951003A - A kind of lampblack absorber control system of detectable carbonomonoxide concentration - Google Patents
A kind of lampblack absorber control system of detectable carbonomonoxide concentration Download PDFInfo
- Publication number
- CN106951003A CN106951003A CN201710113229.XA CN201710113229A CN106951003A CN 106951003 A CN106951003 A CN 106951003A CN 201710113229 A CN201710113229 A CN 201710113229A CN 106951003 A CN106951003 A CN 106951003A
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- CN
- China
- Prior art keywords
- carbonomonoxide concentration
- carbon monoxide
- chip microcomputer
- resistance
- electric capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
Abstract
The invention discloses a kind of lampblack absorber control system of detectable carbonomonoxide concentration, including the carbonomonoxide concentration detection module being connected with single-chip microcomputer, buzzer, display module and blower fan drive module, carbonomonoxide concentration detection module includes carbon monoxide transducer and current amplification circuit, the output end of carbon monoxide transducer is connected with the input of current amplification circuit, and the output end of current amplification circuit is connected with the input pin with AD conversion function in single-chip microcomputer.The present invention can detect the carbonomonoxide concentration in user's kitchen environment in real time by the effect of Carbon Monoxide Detection module, and when carbonomonoxide concentration exceedes permissible value, alarm is sent by buzzer, reminds user to take further measures；Rotation speed of fan discharge carbon monoxide can also be automatically increased in the case where lampblack absorber has been operated, prevents the situation of anthracemia.
Description
Technical field
The invention belongs to lampblack absorber technical field, and in particular to a kind of lampblack absorber control system of detectable carbonomonoxide concentration
System.
Background technology
Combustion gas in current family has three kinds：
1. natural gas, main component is methane；
2. liquefied petroleum gas, main component is propane, butane；
3. water-gas, main component is hydrogen and carbon monoxide.
Wherein natural gas and liquefied petroleum gas can produce CO gas, two water-gas are in itself in burn incompletely
Containing CO gas, preservation is bad also to be leaked.
On the one hand the main harm of carbon monoxide is to be combined with blood in human body in Lactoferrin, it can not be made one in conjunction with oxygen
Poisoning, serious causes stupor even dead；On the other hand it is then when mixing to reach explosion limit with air, due to electric spark
Or collided with some objects and explode and cause casualties and property loss.
At present, there is the instrument of some detection carbonomonoxide concentrations in the market, due to the side such as its quality, volume and ease for use
The limitation in face, is typically widely used in the place of the air-safety quality testing such as mine, automobile, seldom uses it for family life.
Further, since carbon monoxide may be from burning, it is also possible to come from leakage, therefore Carbon Monoxide Detection must constantly be entered
OK.
The content of the invention
In view of the above-mentioned state of the art, the technical problems to be solved by the invention are to provide a kind of detectable oxygen
Change the lampblack absorber control system of concentration of carbon, carbonomonoxide concentration in kitchen can be monitored in real time, and alarmed after concentration over-standard, prevented
Only there is the situation of anthracemia.
In order to achieve the above object, the technical solution adopted in the present invention is as follows：A kind of detectable carbonomonoxide concentration
Lampblack absorber control system, including：Carbonomonoxide concentration detection module, buzzer, display module, blower fan drive module and monolithic
Machine, the carbonomonoxide concentration detection module, buzzer, display module and blower fan drive module are connected with single-chip microcomputer, described
Carbonomonoxide concentration detection module includes carbon monoxide transducer and current amplification circuit, the output of the carbon monoxide transducer
End is connected with the input of current amplification circuit, defeated with AD conversion function in the output end and single-chip microcomputer of current amplification circuit
Enter pin to be connected.
Further, the current amplification circuit includes amplifier U1A, resistance R1, resistance R2, electric capacity C1 and electric capacity C2；Its
In, the negative input phase of one end, electric capacity C2 one end and the carbon monoxide transducer 12 of the resistance R2 with amplifier U1A
Even；Amplifier U1A electrode input end ground connection；Amplifier U1A output end is connected with resistance R1 one end, the resistance R1 other end,
One end of the resistance R2 other end, the electric capacity C2 other end and electric capacity C1 be connected after as current amplification circuit output end with
The input pin with AD conversion function is connected in single-chip microcomputer；Electric capacity C1 other end ground connection.
Further, the model TMS320F2812 of the single-chip microcomputer.
Compared with prior art, the advantage of the invention is that：The present invention, can by the effect of Carbon Monoxide Detection module
The carbonomonoxide concentration in detection user kitchen, when carbonomonoxide concentration is exceeded, alarm is sent by buzzer, user is reminded in real time
Take further measures；Rotation speed of fan discharge carbon monoxide can also be automatically increased in the case where lampblack absorber has been operated, is prevented
Only occurs the situation of anthracemia.
The Carbon Monoxide Detection module for wherein playing central role contains a kind of current amplification circuit, can be by an oxidation
The faint current signal amplification of carbon sensor output, strengthens antijamming capability.
A singlechip chip such as TMS320F2812 for being integrated with AD conversion module of selection, by singlechip chip to putting
The voltage signal of big circuit output is AD converted, and obtains carbonomonoxide concentration in present air.By the concentration and permissible value pair
Than then exporting corresponding control signal, (such as buzzer, fan drive circuit and LED are digital to control the work of other peripheral hardwares
Pipe).Selection appropriate buzzer and charactron so that charactron can show the concentration of current environment carbon monoxide, honeybee in real time
Ring device sends alarm according to the control signal of single-chip microcomputer after carbonomonoxide concentration exceedes permissible value.
Brief description of the drawings
Fig. 1 is circuit system theory diagram of the invention；
Fig. 2 is current amplification circuit figure of the invention；
Fig. 3 is the flow chart that control core single-chip microcomputer of the present invention is run.
Embodiment
In order to more specifically describe the present invention, below in conjunction with the accompanying drawings and embodiment is to technical scheme
It is described in detail.
As shown in figure 1, a kind of lampblack absorber control system of detectable carbonomonoxide concentration, including：Carbonomonoxide concentration is examined
Survey module, buzzer, display module, blower fan drive module and single-chip microcomputer, the carbonomonoxide concentration detection module, buzzer,
Display module and blower fan drive module are connected with single-chip microcomputer, and the carbonomonoxide concentration detection module is sensed including carbon monoxide
Device and current amplification circuit, the output end of the carbon monoxide transducer are connected with the input of current amplification circuit, and electric current is put
The output end of big circuit is connected with the input pin with AD conversion function in single-chip microcomputer.Carbon monoxide transducer is arranged on oil
By the air entry of cigarette machine, blower fan drive module is connected with the motor of lampblack absorber.
A carbon monoxide transducer with good characteristic of selection, can produce the electric current being directly proportional to CO gas concentrations
Signal, carbon monoxide transducer of the invention uses SureCell--CO (M) type sensing element, and CO gas passes through small
Sensor air-vent enter sensor internal, activated carbon can be added in the filter and filters some unwanted gases,
Carbon monoxide is retained simultaneously, final CO gas molecule reaches working electrode surface.It can allow in this way
Proper amount of gas reacts with sensing electrode, to form sufficient electric signal, while preventing that electrolyte from spilling sensor.
In working electrode surface, redox reaction occurs for carbon monoxide, and chemical equation is：
CO+H2O→CO2+2H++2e-
O2+4H++4e-→H2O
Wherein, the quantity of free electron is directly proportional to the concentration of CO gas, is drawn by working electrode, after amplification
Detection process.The effect of auxiliary/reference electrode is that stable electromotive force is provided to working electrode.
As shown in Fig. 2 the current amplification circuit includes amplifier U1A, resistance R1, resistance R2, electric capacity C1 and electric capacity C2；Its
In, the negative input phase of one end, electric capacity C2 one end and the carbon monoxide transducer 12 of the resistance R2 with amplifier U1A
Even；Amplifier U1A electrode input end ground connection；Amplifier U1A output end is connected with resistance R1 one end, the resistance R1 other end,
One end of the resistance R2 other end, the electric capacity C2 other end and electric capacity C1 be connected after as current amplification circuit output end with
The input pin with AD conversion function is connected in single-chip microcomputer；Electric capacity C1 other end ground connection.
Current amplification circuit have selected the input that the amperometric connection input current I_in of reaction type flows into amplifier U1A,
Also feedback resistance R2 is flowed through.So output voltage reflection is input current, sensitivity is determined by feedback resistance R2：Vout=-
I_in*R2。
Further, the model TMS320F2812 of the single-chip microcomputer；Display module is charactron, the control of single-chip microcomputer
The output pin of numeral method is connected to charactron, and the output pin of Single-chip Controlling buzzer warning is connected to buzzer.
The blower fan drive module can use the product of DB6-S2 models, but not limited to this.
A singlechip chip such as TMS320F2812 for being integrated with AD conversion module of selection, by singlechip chip to putting
The voltage signal of big circuit output is AD converted, and obtains carbonomonoxide concentration in present air.By the concentration and permissible value pair
Than then exporting corresponding control signal, (such as buzzer, blower fan drive module and LED are digital to control the work of other peripheral hardwares
Pipe) and realize control to gas heater general supply.12 ADC modular converters built in single-chip microcomputer TMS320F2812, sampling
Amplitude is 0~3V, for being AD converted and filtering process to above-mentioned amplification signal, and filtered result is included in charactron
On, and compared with permissible value, if being less than, continue to detect carbonomonoxide concentration value；If being more than, check now whether lampblack absorber is located
In working condition, if being not in working condition, start buzzer warning；If in running order, starting buzzing
While device is alarmed, increase the rotating speed of blower fan, in order to discharge carbon monoxide, prevent that indoor occupant from occurring anthracemia
Situation, as shown in Figure 3.
Claims (3)
1. a kind of lampblack absorber control system of detectable carbonomonoxide concentration, it is characterised in that including：Carbonomonoxide concentration is detected
Module, buzzer, display module, blower fan drive module and single-chip microcomputer etc., the carbonomonoxide concentration detection module, buzzer,
Display module and blower fan drive module are connected with single-chip microcomputer, and the carbonomonoxide concentration detection module is sensed including carbon monoxide
Device and current amplification circuit, the output end of the carbon monoxide transducer are connected with the input of current amplification circuit, and electric current is put
The output end of big circuit is connected with the input pin with AD conversion function in single-chip microcomputer.
2. the lampblack absorber control system of detectable carbonomonoxide concentration according to claim 1, it is characterised in that the electricity
Current amplifier includes amplifier U1A, resistance R1, resistance R2, electric capacity C1 and electric capacity C2；Wherein, one end of the resistance R2, electric capacity
Negative input of the C2 one end and carbon monoxide transducer 12 with amplifier U1A is connected；Amplifier U1A electrode input end connects
Ground；Amplifier U1A output end is connected with resistance R1 one end, the resistance R1 other end, the resistance R2 other end, electric capacity C2 it is another
One end and electric capacity C1 one end be connected after as in the output end and single-chip microcomputer of current amplification circuit with AD conversion function
Input pin is connected；Electric capacity C1 other end ground connection.
3. the lampblack absorber control system of detectable carbonomonoxide concentration according to claim 1 or 2, it is characterised in that institute
State the model TMS320F2812 of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113229.XA CN106951003A (en) | 2017-02-28 | 2017-02-28 | A kind of lampblack absorber control system of detectable carbonomonoxide concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113229.XA CN106951003A (en) | 2017-02-28 | 2017-02-28 | A kind of lampblack absorber control system of detectable carbonomonoxide concentration |
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| CN106951003A true CN106951003A (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710113229.XA Pending CN106951003A (en) | 2017-02-28 | 2017-02-28 | A kind of lampblack absorber control system of detectable carbonomonoxide concentration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398902A (en) * | 2018-03-05 | 2018-08-14 | 哈工大机器人（合肥）国际创新研究院 | A kind of kitchen safety monitoring system and method based on FPGA |
| CN109100276A (en) * | 2018-10-11 | 2018-12-28 | 四川尚吕家居科技有限公司 | A kind of oil fume detection system |
| CN111603912A (en) * | 2019-02-22 | 2020-09-01 | 上海必修福企业管理有限公司 | Apparatus and method for treating carbon monoxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111603912A (en) * | 2019-02-22 | 2020-09-01 | 上海必修福企业管理有限公司 | Apparatus and method for treating carbon monoxide |
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Application publication date: 20170714 |
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