CN104925002A - System and method for monitoring air environment in vehicle based on sensors - Google Patents
System and method for monitoring air environment in vehicle based on sensors Download PDFInfo
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- CN104925002A CN104925002A CN201510258285.3A CN201510258285A CN104925002A CN 104925002 A CN104925002 A CN 104925002A CN 201510258285 A CN201510258285 A CN 201510258285A CN 104925002 A CN104925002 A CN 104925002A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/008—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
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- Acoustics & Sound (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to a system and method for monitoring air environment in a vehicle based on sensors. The system comprises a vehicle-mounted central controller, a detecting and sensing device, an actuator and a UPS, wherein the vehicle-mounted central controller is arranged at the inner part of a vehicle body and connected with the detecting and sensing device and the actuator respectively; the UPS is connected with the vehicle-mounted central controller, the detecting and sensing device and the actuator respectively; the detecting and sensing device comprises an inner vehicle detecting and sensing component and an outer vehicle detecting and sensing component, and each of the inner vehicle detecting and sensing component and the outer vehicle detecting and sensing component respectively comprises a carbon monoxide detector, a carbon dioxide detector and a VOC detector; the carbon monoxide detector, the carbon dioxide detector and the VOC detector are respectively connected with the vehicle-mounted central controller. Compared with the prior art, the system disclosed by the invention has the advantages of initiate contrast mechanism, high safety, high reliability, intelligent interactive mode, humanization and the like.
Description
Technical field
The present invention relates to safety and environmental science, especially relate to a kind of based on air environment monitoring system and method in the car of multisensor.
Background technology
In recent years, China's automotive market development, but in-car air quality makes people worried.According to repeatedly to the enquiry data display that different regions are launched, there is vehicle proportion that in-vehicle air pollution thing exceeds standard all more than 80%.Because chaufeur and passenger directly, chronically contact with air in car, its pollution can cause direct harm to the health and safety of personnel.In-vehicle exposure species mainly contains volatile organic matter (VOC), carbonic oxide, carbon dioxide, pellet etc.Wherein VOC causes people to pay attention to widely due to its carcinogenicity, has a large amount of correlative study.But carbonic oxide, carbon dioxide are because hazard rating is relatively low, and correlative study is less.But its impact also can not be ignored, and the carbonic oxide that concentration is higher can make people dizzy, even death by suffocation; The carbon dioxide of Long Term Contact 3% can make that people is weak, pain, cacesthesia, and the carbon dioxide of short term contact higher concentration easily causes fatigue driving, dizzy, expiratory dyspnea, even dead.Carbonic oxide and carbon dioxide due to colorless and odorless, bad reaction not obvious, in its car, concentration is often in the state of exceeding standard, but occupant is ignorant.Therefore be necessary to monitor and early warning it.
4 kinds are roughly divided at present for improving the device of gaseous environment in car.
The first only detects.The built-in VOC sensor of this kind equipment, is connected with mobile phone by bluetooth, and arrange in pairs or groups official App simultaneously, for car owner provides in-car air quality real-time Detection Information.Be characterized in that volume is little, powerful; Can provide pollution exceed standard spontaneous combustion early warning in alarm, carbon monoxide hazard alarm, car, environment inside car Improving advice is provided, even can also realize following the trail of the life cycle of car.But it also has some shortcomings, such as, because volume is little, there is no battery, need the USB port relied in automobile to power; Can only send alarm message for car owner, the operation such as improvement ventilation afterwards also needs car owner to complete voluntarily.
The second does not detect, and directly carries out continuing purge in car.Such as automobile oxygen bar product, mainly through produce and release ozone and negative oxygen ion eliminate air peculiar smell and sterilization.This kind of product due to horsepower output limited, filter not exclusively wind circulation, clean-up effect is not obvious; Function singleness in addition, only possesses bactericidal effect, can not monitor the gas such as carbonic oxide, carbon dioxide.
The third detects air quality and purifies in car.The LED of in-car air quality information front end can show by this category, and realizes the purification to vitiated air in car by plasma generation, negative ion generation, photocatalyst or multiple filter screen technology etc.Be characterized in good purification, effectively can remove the organic chemistry such as formaldehyde, toluene gas, can also absorbing pathogenic bacteria, PM2.5 particle.But shortcoming lacks the monitoring to carbonic oxide, gas concentration lwevel; And price is higher, usually more than thousand yuan.
4th kind is detect air quality and improved by ventilation.Such as a automobile-used carbon dioxide detection control module, be arranged on passenger car inside, in vehicle travel process, module is monitored in-car air quality in real time, when finding that in car, gas concentration lwevel exceedes the threshold value of setting, module can open automobile plenum system automatically, in car, provide fresh air; When gas concentration lwevel in car reaches after the safety value of setting, module can close supply air system automatically.The application of this module is passenger vehicle.For roadlice, an achievement in research in Taiwan is specific gas concentration in monitoring car, automatically opens vehicle window or externally send distress signal and positioning signal when concentration is greater than specific warning value.These products all can realize the control of automation to the air-conditioning of automobile or vehicle window, for driver provides conveniently, but lack soliciting chaufeur suggestion.Such as open the oil consumption that air-conditioning outer circulation can increase automobile, open vehicle window and may cause infringement to individual privacy, property, consider these factors, although sometimes in car, air ambient is degrading, but driver wishes to restrain oneself a period of time momently again, and the said equipment just cannot meet such demand.In addition this equipment all can only play a role when automobile starting, cannot work after flame-out.In fact, sleep in car after flame-out, in car, gas concentration lwevel constantly rises the lethal tragedy of people's anoxic is happened occasionally.In order to avoid the generation of this situation, after automobile flameout, also must carry out continual monitoring to gaseous environment in car, and send prompting or warning in time, allow occupant note ventilating or leaving automobile.
Achievement in research in the past mainly concentrates in the process to VOC, and to carbonic oxide and carbon dioxide shorter mention, the interactive mode existing defects of product, lacks monitoring to the vehicle pernicious gas content in rear car that stops working, there is larger potential safety hazard.
Publication number is that the Chinese patent of CN103344743A discloses air detecting device in a kind of car, this device comprises trigger circuit, carbon dioxide sensor, NOx sensor, the first comparator, the second comparator or compute chip, relay actr, the concentration of real-time detection Carbon Dioxide in Air, oxides of nitrogen, open vehicle window ventilation when concentration over-standard, while detection air quality, keep with fresh air in car.But the device described in this patent cannot detect the concentration of carbonic oxide, also cannot continue monitoring after car is flame-out, security risk is high.
Publication number is that the Chinese patent of CN103389359A discloses a kind of automobile air detecting device, and this device comprises power module, air detection instrument, CPU message processing module, output module and annunciator; Described air detection instrument is connected power module respectively with CPU message processing module; Described air detection instrument connects CPU message processing module; Described output module and annunciator are connected CPU message processing module respectively.But this patent can not detect all in-vehicle exposure things, and whether cannot have people in automatic detection vehicle, also cannot normally work after flame-out, clean-up effect is poor, and danger coefficient is high.
Publication number is that the Chinese patent of CN202720217U discloses a kind of automobile air detecting device, and this device comprises power circuit, Temperature Humidity Sensor, hydrocarbon sensor, nitrogen oxide sensor, dichlorodifluromethane sensor, dust sensor, data acquisition circuit, micro controller system, warning circuit and expanded circuit; Wherein Temperature Humidity Sensor, hydrocarbon sensor, nitrogen oxide sensor, dichlorodifluromethane sensor are connected with micro controller system respectively by data acquisition circuit with dust sensor, and micro controller system is connected with warning circuit, expanded circuit respectively; Power circuit provides power supply.But this device only can send warning reminding occupant when in-vehicle exposure substrate concentration exceeds standard, can not take action and reduce in-vehicle exposure substrate concentration, degree of automation is low and operation is inconvenient.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of pioneering contrast mechanism is provided, safe and reliable, interactive mode is intelligent, hommization based on air environment monitoring system and method in the car of multisensor.
Object of the present invention can be achieved through the following technical solutions:
A kind of based on air environment monitoring system in the car of multisensor, comprise vehicle-mounted central controller, detect induction installation, actr and UPS, described vehicle-mounted central controller is arranged on vehicle body, and be connected with detection induction installation and actr respectively, described UPS respectively with vehicle-mounted central controller, detect induction installation to be connected with actr, described detection induction installation comprises detection inductive component and car in car and detects inductive component outward, in described car, detection inductive component detects inductive component outward with car and includes the carbon monoxide detector be connected with vehicle-mounted central controller respectively, carbon dioxide indicator and VOC detector.
Described carbon monoxide detector is MQ-9 sensor, and described carbon dioxide indicator is mg811 type carbon dioxide sensor, and described carbon monoxide detector and carbon dioxide indicator are separately positioned on Che Nei and air-inlet grille place.
Described vehicle-mounted central controller comprises micro controller system, phonetic alarm and Liquid Crystal Display, and described micro controller system is connected with phonetic alarm, Liquid Crystal Display, detection induction installation and actr respectively.
Described actr comprises car window switch and on-board air conditioner switch.
Described detection induction installation also comprises the image sensor be connected with micro controller system.
Based on an air environment monitoring method in the car of multisensor, comprise the following steps:
1) obtain the pressure information on seat by image sensor and judge whether have people in car, if so, then carry out step 2), if not, then return step 1);
2) by detecting the concentration of carbonic oxide, carbon dioxide and VOC in induction installation inspection vehicle, and judge whether this concentration exceedes warning value, if so, then audio alert, and carry out step 3), if not, then return step 2);
3) by detecting the concentration of carbonic oxide, carbon dioxide and VOC outside induction installation inspection vehicle, and compare with the concentration in car, Ruo Chenei concentration is greater than car extracellular concentration, then control vehicle window to open, if car extracellular concentration is greater than concentration in car, then controls vehicle window and close, control on-board air conditioner and open, enter Inner eycle pattern, and return step 2).
Described step 2) in warning value be divided into three grades of warnings, when concentration in car reach three grades warning time, then once report to the police every 30s, and positive opening vehicle window and air-conditioning process.
Compared with prior art, the present invention has the following advantages:
One, pioneering vehicle inner air and outer air quality comprehensive contrast operating mechanism: prior art or only inspection vehicle outer air quality, prevent the pollutants of excessive concentration into the car, or only detect in-car air quality, take measures when seriously polluted, only inspection vehicle outer air quality and to ignore in-car air quality obviously unreasonable; Only detecting in-car air quality may occur in car outer air damage ratio (DR) car even more serious, but remind and add forced ventilation, in-vehicle exposure is caused to aggravate further, the present invention is based on the outer and in-car air quality data of car that the detector that is arranged on air-inlet grille and Che Nei gathers, Comprehensive Comparison is carried out to it, only have when car outer air quality is better than in car, just take the mode purifying in-vehicle air quality adding forced ventilation, ensure that the validity of venting practice.
Two, all the period of time detection technique is adopted, more safe and reliable: namely prior art terminates the detection to in-car air quality after stopping working, there is serious security risks, part driver or passenger are trapped in car after vehicle is flame-out, because space-closed is narrow, very easily occur the serious accident that anoxic is lethal, report so is every year all of common occurrence.The present invention relies on the uninterrupted power supply (UPS) that UPS provides, and after vehicle is flame-out, still continue to monitor air in car, take measures in time when causing danger, the life for user provides safety control safe against all possibilities.
Three, interactive mode intellectuality, hommization, this patent adopts the mode of voice message, allows driver understand in-car air quality while not moving sight line, reduces the dispersion to user's attention.The multistage early warning interactive mode that this patent adopts both had possessed higher degree of automation, had respected again the option right of user.When pollutant levels reach warning value at different levels, first voice message is sent, report pollutant degree, and the measure being about to automatically take is described, ensure the right to know of user, after voice broadcast, the time of 10 seconds is had to allow user select the measure whether accepting to be about to take, if user is in certain consider that refusal is taken measures, optional selecting disappears, and has ensured the option right of user.If user agrees to the measure that system recommendation is taked, without the need to operation, as long as wait for that countdown terminates, automatic control air conditioner and vehicle window are added forced ventilation by system, and automatization level is high.Because native system runs without interruption all the period of time, there will not be user to forget the situation of unlatching, native system accomplished to allow user save worry, comfortable, relieved.
Accompanying drawing explanation
Fig. 1 is the working-flow figure in embodiment.
Fig. 2 is system architecture schematic diagram of the present invention.
Wherein, 1, vehicle-mounted central controller, 2, detect induction installation, 3, actr, 4, UPS, 11, micro controller system, 12, phonetic alarm, 13, Liquid Crystal Display, 21, carbon monoxide detector, 22, carbon dioxide indicator, 23, VOC detector.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment:
As shown in Figure 2, figure is system architecture schematic diagram of the present invention, a kind of based on air environment monitoring system in the car of multisensor, comprise vehicle-mounted central controller 1, detect induction installation 2, actr 3 and UPS4, vehicle-mounted central controller 1 is arranged on vehicle body, and be connected with detection induction installation 2 and actr 3 respectively, UPS4 respectively with vehicle-mounted central controller 1, detect induction installation 2 to be connected with actr 3, detection induction installation 2 comprises detection inductive component and car in car and detects inductive component outward, in car, detection inductive component detects inductive component outward with car and includes the carbon monoxide detector 21 be connected with vehicle-mounted central controller 1 respectively, carbon dioxide indicator 22 and VOC detector 23.
Carbon monoxide detector 21 is MQ-9 sensor, and carbon dioxide indicator 22 is mg811 type carbon dioxide sensor, and carbon monoxide detector 21 and carbon dioxide indicator 22 are separately positioned on Che Nei and air-inlet grille place.
Vehicle-mounted central controller 1 comprises micro controller system 11, phonetic alarm 12 and Liquid Crystal Display 13, micro controller system 11 respectively with phonetic alarm 12, Liquid Crystal Display 13, detect induction installation 2 and actr 3 is connected, actr 3 comprises car window switch and on-board air conditioner switch, detects induction installation 2 and also comprises the image sensor be connected with micro controller system 11.
The object of the invention is by the optimization to existing procucts, designs air environment monitoring and early warning security system in a set of hommization, safe and reliable car, ensures the healthy and life security of occupant.
The basis of the present invention's air monitering in original car, purification plant is optimized, and its particular content has:
With GL7-877A micro controller system for systemic vectors, mg811 type carbon dioxide sensor is for detecting carbon dioxide, and MQ-9 sensor is for detecting carbonic oxide, and WT588D voice module can send voice message, whether have people in seat sensor monitoring car, power-supply management system is that all devices is powered.
The workflow of native system as shown in Figure 1.
Micro controller system can repeat write-in program, is convenient to upgrading.
Product only checked Che Nei and one of the outer air quality of car in the past, but native system takes the scheme of comprehensive monitoring inside and outside vehicle.Consider and only have when car outer air quality is good, adding forced ventilation could improve in-car air quality.When car outer air is seriously polluted, then close vehicle window, open air-conditioning Inner eycle pattern, preventing pollution thing enters.
Present invention employs LCDs display in-car air quality, but because chaufeur should not be diverted attention when steering vehicle, therefore when air quality worsens, voice module will send voice message, inform that driver's system is about to the measure taked, driver can by the automatic execution of system after countdown terminates without the need to carrying out any operation.
Power-supply management system is a large characteristic of native system.The independent current source carried can work after automobile flameout for equipment, and the personnel that stop still rest on contingent hidden danger of suffocating in car after automobile flameout.Can be power source charges when automobile starting, this system can be run without interruption, ensure the health and safety of people.
The present invention's reliability compared with existing procucts is higher, humanized alternately.At present, completion system write work, and access carbonic oxide and carbon dioxide sensor is tested.And human detection and signal imitation has only been carried out to the control of air-conditioning vehicle window, needing further cooperation just can carry out practical application with improving.
First the present invention locates each installation carbonic oxide and carbon dioxide sensor at Che Nei and air-inlet grille, and is connected with micro controller system.Seat sensor is accessed, the signal whether having people in car is provided.Power lead is accessed automobile cigarette lighter, can be system power supply charging when automobile starting.After system installs, can carbonic oxide inside and outside inspection vehicle and gas concentration lwevel, Ruo Chenei has people, sends voice message and by adding forced ventilation to the control of air-conditioning and vehicle window when concentration over-standard, thus reach optimization in-car air quality, ensure the object of the health and safety of people.
Claims (7)
1. one kind based on air environment monitoring system in the car of multisensor, it is characterized in that, comprise vehicle-mounted central controller (1), detect induction installation (2), actr (3) and UPS (4), described vehicle-mounted central controller (1) is arranged on vehicle body, and be connected with detection induction installation (2) and actr (3) respectively, described UPS (4) respectively with vehicle-mounted central controller (1), detect induction installation (2) to be connected with actr (3), described detection induction installation (2) comprises detection inductive component and car in car and detects inductive component outward, in described car, detection inductive component detects inductive component outward with car and includes the carbon monoxide detector (21) be connected with vehicle-mounted central controller (1) respectively, carbon dioxide indicator (22) and VOC detector (23).
2. according to claim 1 a kind of based on air environment monitoring system in the car of multisensor, it is characterized in that, described carbon monoxide detector (21) is MQ-9 sensor, described carbon dioxide indicator (22) is mg811 type carbon dioxide sensor, and described carbon monoxide detector (21) and carbon dioxide indicator (22) are separately positioned on Che Nei and air-inlet grille place.
3. according to claim 1 a kind of based on air environment monitoring system in the car of multisensor, it is characterized in that, described vehicle-mounted central controller (1) comprises micro controller system (11), phonetic alarm (12) and Liquid Crystal Display (13), described micro controller system (11) respectively with phonetic alarm (12), Liquid Crystal Display (13), detect induction installation (2) and actr (3) is connected.
4. according to claim 1ly a kind ofly to it is characterized in that based on air environment monitoring system in the car of multisensor, described actr (3) comprises car window switch and on-board air conditioner switch.
5. according to claim 3ly a kind ofly to it is characterized in that based on air environment monitoring system in the car of multisensor, described detection induction installation (2) also comprises the image sensor be connected with micro controller system (11).
6. adopt the monitoring method based on air environment monitoring system in the car of multisensor as described in any one of claim 1-5, it is characterized in that, comprise the following steps:
1) obtain the pressure information on seat by image sensor and judge whether have people in car, if so, then carry out step 2), if not, then return step 1);
2) by detecting the concentration of carbonic oxide, carbon dioxide and VOC in induction installation inspection vehicle, and judge whether this concentration exceedes warning value, if so, then audio alert, and carry out step 3), if not, then return step 2);
3) by detecting the concentration of carbonic oxide, carbon dioxide and VOC outside induction installation inspection vehicle, and compare with the concentration in car, Ruo Chenei concentration is greater than car extracellular concentration, then control vehicle window to open, if car extracellular concentration is greater than concentration in car, then controls vehicle window and close, control on-board air conditioner and open, enter Inner eycle pattern, and return step 2).
7. according to claim 1 a kind of based on air environment monitoring method in the car of multisensor, it is characterized in that, described step 2) in warning value be divided into three grades of warnings, when concentration in car reaches three grades of warnings, then once report to the police every 30s, and positive opening vehicle window and air-conditioning process.
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| CN105301973A (en) * | 2015-11-02 | 2016-02-03 | 苏州美达瑞电子有限公司 | Ventilation and humidification system based on CO detection and humidity detection |
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| CN106964088A (en) * | 2016-12-28 | 2017-07-21 | 阜阳华信电子仪器有限公司 | A kind of train fire-fighting integral system and method |
| CN107945461A (en) * | 2017-10-31 | 2018-04-20 | 上海船舶运输科学研究所 | A kind of safety detecting alarm system of chemical accident relief car |
| CN108382155A (en) * | 2018-01-25 | 2018-08-10 | 浙江吉利汽车研究院有限公司 | A kind of air-conditioning phonetic controller with prompting function |
| CN108515903A (en) * | 2018-04-08 | 2018-09-11 | 江苏理工学院 | A kind of anti-anthracemia system and method for the automobile of safety and effectivity |
| CN109435626A (en) * | 2018-10-24 | 2019-03-08 | 姚晓宁 | In-car air quality detects purification system and its detection purification method |
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| CN105301973A (en) * | 2015-11-02 | 2016-02-03 | 苏州美达瑞电子有限公司 | Ventilation and humidification system based on CO detection and humidity detection |
| CN105857220A (en) * | 2016-04-12 | 2016-08-17 | 大连楼兰科技股份有限公司 | In-automobile environment self-adjustment system and method based on sensor network |
| CN106183708A (en) * | 2016-07-12 | 2016-12-07 | 上海爱斯达克汽车空调系统有限公司 | Gas concentration lwevel monitoring system and control method thereof in compartment |
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Application publication date: 20150923 |