CN109557147A - A kind of vehicle hazard gas detecting system - Google Patents
A kind of vehicle hazard gas detecting system Download PDFInfo
- Publication number
- CN109557147A CN109557147A CN201710887032.1A CN201710887032A CN109557147A CN 109557147 A CN109557147 A CN 109557147A CN 201710887032 A CN201710887032 A CN 201710887032A CN 109557147 A CN109557147 A CN 109557147A
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- CN
- China
- Prior art keywords
- gas
- body controller
- car body
- hazard
- signal
- 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.)
- Pending
Links
- 231100001261 hazardous Toxicity 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 230000005669 field effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 39
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 11
- 229910002091 carbon monoxide Inorganic materials 0.000 description 11
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229960004424 carbon dioxide Drugs 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010024264 Lethargy Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/72—Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/55—Windows
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Emergency Management (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Business, Economics & Management (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of vehicle hazard gas detecting systems, it is characterised in that: it includes gas-hazard meter, warning device, car body controller；Wherein the gas-hazard meter is used to detect interior hazardous gas concentration variation, and will test signal and send the car body controller to；The car body controller is for sampling the signal that gas-hazard meter transmits, exporting warning message and controlling power windows；The warning device is used to receive the alarm signal of car body controller output, exports sound and light alarm signal.The present invention combines car body controller etc. by hazardous gas detection.Realize the interior detection of hazardous gas in real time and the raw safety of alarm guarantor, it may also be necessary to actively open vehicle window and achieve the effect that ventilation.
Description
Technical field
The invention belongs to hazardous gas detection fields, more particularly to a kind of vehicle hazard gas detecting system.
Background technique
Interior hazardous gas concentration over-standard causing death's event often occurs recently.Some people open sky in garage
Adjust or warm wind and open engine causes exhaust emissions unsmooth and tail gas is caused to be poisoned to death.Vehicle exhaust contains a large amount of one
Carbonoxide, usually these carbon monoxide have been discharged to other than car body with the traveling overwhelming majority of vehicle, and only small part remains in vehicle
Within body.The time that people sit in the car is shorter, the window of people's driving sometimes, so not having feeling usually.And automobile is quiet
It is only motionless especially into after in library, it is this odorless if engine continues to open carbon monoxide and will largely remain car
Tasteless gas can finally cause occupant's confused lethargic sleep in insentience to be gone, and be poisoned to death.Generally in carbonomonoxide concentration
Reaching breathing in 30 percent environment will be poisoned more than 20 minutes, reach 40 percent in carbonomonoxide concentration
Environment in breathing more than 20 minutes can death.Gas-hazard meter is added in automobile interior decoration thus, in time
Detection and alarm will be very necessary.
Summary of the invention
It is an object of that present invention to provide a kind of vehicle hazard gas for being able to detect interior hazardous gas concentration and issuing alarm
Physical examination examining system.
The present invention to achieve the above object, adopts the following technical scheme that a kind of vehicle hazard gas detecting system, special
Sign is: it includes gas-hazard meter, warning device, car body controller；Wherein
The gas-hazard meter is used to detect interior hazardous gas concentration variation, and will test signal and send the vehicle to
Body controller；The car body controller is for sampling the signal that gas-hazard meter transmits, output alarm
Information simultaneously controls power windows；
The warning device is used to receive the alarm signal of car body controller output, exports sound and light alarm signal.
Preferred: the gas-hazard meter uses electrochemical sensor, and top in the car is arranged.Vehicle exhaust master
Wanting hazardous gas is carbon monoxide, since the more other gases of its specific gravity are light, so hazardous gas sensor can be placed on roof
The less unobstructed position of air-flow.Gas-hazard meter uses electrochemical sensor, which can cover in environment
Most common gas, such as carbon monoxide (CO), sulfur dioxide (SO2), hydrogen sulfide (H2S) and nitrogen dioxide (NO2)
Deng.Compared with other hazardous gas detection methods, electrochemical sensor is with low in energy consumption, cross sensitivity is low, steady in a long-term
The features such as property is outstanding, is very suitable to battery powered application environment in automobile.
It is further characterized by: the gas-hazard meter is powered by car body controller, including standard electric pressing mold
Block, the first amplifier, electrochemical sensor, field-effect tube and the second amplifier；The normal voltage module is the first amplification
Device and the second amplifier provide normal voltage；The electrochemical sensor includes reference electrode, working electrode and auxiliary electrode
；Reference electrode of first amplifier by field-effect tube to electrochemical sensor is powered, and reference electrode makes the voltage of working electrode
It keeps stablizing, so that working sensor is within the range of linearity；The working electrode of electrochemical sensor detects hazardous gas, and
Electric current is generated in proportion according to gas concentration, and auxiliary electrode makes the electric current generated on working electrode node reach balance；With reference to
Electrode node keeps voltage by potentiostatic circuit, and provides the electric current of auxiliary electrode node generation；Second amplifier is work
Make the A/D thief hatch that electrode current signal is sent to car body controller through pressure circulationization circuit conversion for voltage signal.
The present invention combines car body controller etc. by hazardous gas detection.Interior hazardous gas detection in real time is realized, and
Alarm guarantees life safety, it may also be necessary to actively open vehicle window and achieve the effect that ventilation.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is gas-hazard meter circuit diagram.
Specific embodiment
A kind of vehicle hazard gas detecting system as shown in Fig. 1: it include gas-hazard meter 1, warning device,
Car body controller 3；Wherein the gas-hazard meter 1 is used to detect interior hazardous gas concentration variation, and will
Detection signal sends the car body controller 3 to；
The car body controller 3 exports warning message for sampling to the signal that gas-hazard meter transmits
And control power windows 5,6；The warning device is used to receive the alarm signal of car body controller output, exports acousto-optic report
Alert signal.
Preferred: the gas-hazard meter 1 uses electrochemical sensor, and top in the car is arranged.Car tail
Gas main hazard gas is carbon monoxide, since the more other gases of its specific gravity are light, so hazardous gas sensor can be placed on
The less unobstructed position of roof air-flow.Gas-hazard meter uses electrochemical sensor, which can cover environment
In most common gas, such as carbon monoxide (CO), sulfur dioxide (SO2), hydrogen sulfide (H2S) and nitrogen dioxide
(NO2) etc..Compared with other hazardous gas detection methods, electrochemical sensor is with low in energy consumption, cross sensitivity is low, long
The features such as phase stability is outstanding is very suitable to battery powered application environment in automobile.
The gas-hazard meter 1 as shown in Fig. 2 is powered by car body controller 3, including normal voltage module
11, the first amplifier 12, electrochemical sensor 13, field-effect tube 14 and the second amplifier 15；The normal voltage
Module 11 is that the first amplifier 12 and the second amplifier 15 provide normal voltage；
The electrochemical sensor includes reference electrode RE, working electrode WE and auxiliary electrode CE；First amplifier 12
Reference electrode RE by field-effect tube 14 to electrochemical sensor powers, and reference electrode RE makes working electrode WE
Voltage keep stablize, so that working sensor is within the range of linearity；The working electrode WE of electrochemical sensor is detected
Hazardous gas, and electric current is generated according to gas concentration in proportion, auxiliary electrode CE makes the electricity generated on working electrode WE node
Stream reaches balance；Reference electrode RE node keeps voltage by potentiostatic circuit, and provides the generation of auxiliary electrode CE node
Electric current；Second amplifier 15 is voltage signal transmission through pressure circulationization circuit conversion working electrode WE current signal
To the A/D thief hatch of car body controller 3.Car body controller 3 will judge hazardous gas it is whether exceeded, if it is exceeded will
It is shown by buzzer warning on vehicle, and in instrument desk.If severe overweight will automatically turn on motorized window forced ventilation etc..
The dangerous concentrations that the present invention mainly utilizes the detection of hazardous gas sensor interior.When concentration is harmful to people and
Alarm, the method that hazardous gas sensor uses electrochemistry.By taking carbon monoxide as an example, when CO gas passes through sensing
Stomata on device shell is diffused on the surface working electrode WE through ventilated membrane, under the catalytic action of working electrode WE, one
Carbon oxide gas aoxidizes on working electrode WE.Its chemical equation are as follows: CO+H2O → CO2+2H++2e- exists
H+ ion and electronics that oxidation reaction generates occur on working electrode, is transferred to by electrolyte and is kept with working electrode WE
On the auxiliary electrode CE of certain intervals, reduction reaction occurs with the oxygen in water.Its chemical equation are as follows: 1/2O2+2H++
Therefore, oxidation-reduction reversible reaction just has occurred in sensor internal to 2e- → H2O.Its chemical equation are as follows: 2CO
This oxidation-reduction reversible reaction of 2 → 2CO2 of+2O always happens in working electrode and between electrode, and
Potential difference is generated between electrode.But since the reaction occurred on two electrodes can all make electrode polarization, this makes interpolar electric
Position is difficult to remain constant, thus also limits to the detectable range of carbonomonoxide concentration.In order to maintain the perseverance of electrode potential
It is fixed, introduce a reference electrode RE.In three-electrode electro Chemical gas sensor, what output end was reflected is ginseng
The potential change between electrode and working electrode is examined, since reference electrode is not involved in oxidation or reduction reaction, it can be with
The current potential of interpolar is set to maintain constant (i.e. constant potential), the variation of current potential just directly has with the variation of carbonomonoxide concentration at this time
It closes.When gas sensor generates output electric current, size is directly proportional to the concentration of gas.Pass through electrode outlet line outside
The size of circuit measuring current output sensor, can detect the concentration of carbon monoxide, and have very wide linear measurement model
It encloses.In this way, outer signal Acquisition Circuit and corresponding conversion and output circuit on gas sensor, it will be able to be aoxidized to one
Carbon gas realizes detection and monitoring.
Claims (3)
1. a kind of vehicle hazard gas detecting system, it is characterised in that: it includes gas-hazard meter, warning device, vehicle
Body controller；
Wherein the gas-hazard meter is used to detect interior hazardous gas concentration variation, and will test signal and send to
The car body controller；
The car body controller is for sampling the signal that gas-hazard meter transmits, exporting warning message and controlling
Power windows processed；
The warning device is used to receive the alarm signal of car body controller output, exports sound and light alarm signal.
2. the vehicle hazard gas detecting system according to claim 1, it is characterised in that: the hazardous gas detection
Device uses electrochemical sensor, and top in the car is arranged.
3. the vehicle hazard gas detecting system according to claim 2, it is characterised in that: the hazardous gas detection
Device is powered by car body controller, including normal voltage module, the first amplifier, electrochemical sensor, field-effect tube and second are put
Big device；
The normal voltage module provides normal voltage for the first amplifier and the second amplifier；
The electrochemical sensor includes reference electrode, working electrode and auxiliary electrode；First amplifier is given by field-effect tube
The reference electrode of electrochemical sensor is powered, and reference electrode makes the voltage of working electrode keep stablizing, so as to working sensor in
Within the range of linearity；The working electrode of electrochemical sensor detects hazardous gas, and generates electricity in proportion according to gas concentration
Stream, auxiliary electrode make the electric current generated on working electrode node reach balance；Reference electrode node is kept by potentiostatic circuit
Voltage, and the electric current of auxiliary electrode node generation is provided；Second amplifier is working electrode currents signal through pressure circulationization electricity
Road is converted to the A/D thief hatch that voltage signal is sent to car body controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887032.1A CN109557147A (en) | 2017-09-27 | 2017-09-27 | A kind of vehicle hazard gas detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887032.1A CN109557147A (en) | 2017-09-27 | 2017-09-27 | A kind of vehicle hazard gas detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109557147A true CN109557147A (en) | 2019-04-02 |
Family
ID=65863367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710887032.1A Pending CN109557147A (en) | 2017-09-27 | 2017-09-27 | A kind of vehicle hazard gas detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109557147A (en) |
-
2017
- 2017-09-27 CN CN201710887032.1A patent/CN109557147A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190402 |
|
| WD01 | Invention patent application deemed withdrawn after publication |