CN114217653A - Intelligent smell monitoring control system and method in vehicle - Google Patents

Intelligent smell monitoring control system and method in vehicle Download PDF

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Publication number
CN114217653A
CN114217653A CN202111447823.5A CN202111447823A CN114217653A CN 114217653 A CN114217653 A CN 114217653A CN 202111447823 A CN202111447823 A CN 202111447823A CN 114217653 A CN114217653 A CN 114217653A
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module
vehicle
concentration
sensor
control unit
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李冬青
赵品
周宸
蒋祥祥
曹小东
张东华
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Clp Technology Innovation Zhilian Wuhan Co ltd
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Clp Technology Innovation Zhilian Wuhan Co ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • 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
    • 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
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling

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  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses an intelligent smell monitoring control system and method in a vehicle. The intelligent smell monitoring and control system in the vehicle comprises a smell sensor module, an operational amplification circuit module, an analog-to-digital conversion module, a microprocessor control unit module, a vehicle state monitoring module, a display warning control module and a terminal display module, wherein the smell sensor module is connected with the operational amplification circuit module, the operational amplification circuit module is connected with the analog-to-digital conversion module, the analog-to-digital conversion module is connected with the microprocessor control unit module, the vehicle state monitoring module is connected with the microprocessor control unit module, the display warning control module is connected with the microprocessor control unit module, and the terminal display module is connected with the display warning control module. The invention has the advantages that: aiming at different working conditions, the system effectively reminds people in the automobile to pay attention to the concentration value of harmful gas in the automobile, automatically controls windows of the automobile or an air conditioner in the automobile flexibly, and guarantees that the people in the automobile are always under safe gas concentration.

Description

Intelligent smell monitoring control system and method in vehicle
Technical Field
The invention relates to the technical field of gas detection technology and automatic control response system, in particular to an in-vehicle intelligent smell monitoring control system and method.
Background
With the improvement of living standard and the rapid development of science and technology, automobiles enter households and become tools on which people depend when going out. In order to meet the requirement of consumers on the comfort of automobiles, automobile manufacturers can continuously improve the structure and materials of automobile interiors and use more new technologies, new materials and new processes in order to improve the competitiveness of the enterprises during design and production. Among them, the application of non-metallic material adhesive in large quantity causes the volatile and aggregation of pollutants in the vehicle, which will harm human health.
In order to ensure that the concentration of harmful gases in the sold vehicle meets the relevant standard, the concentration of VOC (volatile organic compounds) gases in the air in the vehicle needs to be detected according to the standard after the production of the vehicle is finished, and the concentration of the relevant gases in the sold vehicle meets the relevant standard. However, this detection method has the following disadvantages: in the actual use process of the automobile, the concentration change of harmful gas is increased due to environmental changes such as temperature and air pressure in the automobile, whether the concentration of the harmful gas exceeds the standard cannot be accurately evaluated by adopting a threshold value under a normal environmental condition, and the dizziness is easily caused when people in the automobile are in the environment for a long time, so that the health of the people in the automobile is seriously threatened, and if the reminding is not timely, reasonable measures are not taken, and the life safety of the people is even threatened.
Specifically, in the national standard, the threshold value of the gas concentration is measured under the standard pressure and the standard temperature, and in the actual gas measurement, the gas concentration threshold value is set according to the national standard strictly in order to ensure the safety of the personnel. However, as a relatively closed space, the temperature inside the vehicle greatly changes due to different external environments, and the change in gas pressure also affects the detection of the gas concentration, thereby interfering with the actual concentration of the gas. Under standard conditions, the gas pressure was 101.325kPa and the standard temperature was 273.15K. Considering the influence of climate on temperature, the pressure inside and outside the vehicle is basically consistent in winter, the lowest temperature in the whole country is about minus 40 ℃, and the highest temperature in the vehicle can reach plus 70 ℃ in summer under the condition of sun exposure. The pressure intensity of different areas is different, and in Qinghai-Tibet plateau, the average altitude is 4500 m, the atmospheric pressure is 71kPa, and the average temperature is 0 ℃. Therefore, the measurement accuracy of the conventional gas concentration is affected by different regions and different climates.
In the daily use of vehicles, drivers and passengers are in the vehicles for a long time, and the air in the vehicles has important influence on the personnel in the vehicles. In the driving process of the vehicle, the concentration of carbon dioxide generated by the breathing of a driver in the vehicle is continuously increased in a closed environment, and if the driver does not open the window in time for ventilation, the driving state of the driver is seriously influenced, so that traffic accidents are caused. In addition, in the case of a traffic jam, idling of an engine at an idle speed, opening of an air conditioner in a vehicle at the time of parking, or the like, a large amount of carbon monoxide is often generated due to insufficient fuel combustion, and at this time, if the space in the vehicle is closed, a passenger is at risk of carbon monoxide poisoning. Particularly, the space in the vehicle is closed in winter and summer, the air conditioner runs for a long time, and the environment in the vehicle is lack of detection, so that the safety of passengers is not protected. At present, people have gradually enriched lives, and people often choose to rest and sleep in a vehicle when traveling outside. Often, people are in a closed car for sleeping well to cause oxygen deficiency or CO poisoning, which seriously threatens the health and safety of people.
Due to the continuous improvement of the use frequency of automobiles, the relatively closed automobile room gradually becomes a place where people mainly stay, and a series of potential threats are brought to the life safety of people. Therefore, a system for detecting and automatically adjusting the content of harmful gas, which can ensure the safety of people in the vehicle, is needed.
Disclosure of Invention
The invention aims to provide an in-vehicle intelligent smell monitoring control system and method aiming at the existing technical situation, effectively reminding in-vehicle personnel of paying attention to the concentration value of harmful gas in a vehicle according to different working conditions, automatically controlling vehicle windows or an in-vehicle air conditioner in a mobility manner, and ensuring that the in-vehicle personnel are always under safe gas concentration.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent smell monitoring control system in a vehicle comprises a smell sensor module, an operational amplifier circuit module, an A/D (analog/digital) conversion module, a microprocessor control unit module, a vehicle state monitoring module, a display warning control module and a terminal display module;
the smell sensor module is connected with the operational amplification circuit module and is used for detecting the concentration of harmful gas in the vehicle, the real-time environmental pressure and the real-time environmental temperature in the vehicle in real time and outputting a standard voltage value to the operational amplification circuit module;
the operational amplification circuit module is connected with the A/D analog-to-digital conversion module and is used for amplifying the standard voltage value output by the olfactory sensor module;
the A/D analog-to-digital conversion module is connected with the microprocessor control unit module and is used for performing signal conversion on the direct current signal processed by the operational amplification circuit module;
the microprocessor control unit module is used for correcting the standard threshold of the harmful gas concentration to obtain a real-time harmful gas concentration threshold, comparing the real-time harmful gas concentration threshold with the real-time harmful gas concentration value, sending the comparison information to the downstream module and making corresponding controlled response by the downstream module;
the vehicle state monitoring module is connected with the microprocessor control unit module and is used for detecting whether a person is left in a vehicle starting/flameout state and a flameout state or not and making a control instruction to the downstream module according to a monitoring signal by the microprocessor control unit module;
the display warning control module is connected with the microprocessor control unit module and is used for carrying out buzzing warning according to a control instruction of the upstream module, displaying a concentration value of harmful gas in the current environment in the automobile and controlling the opening of an air conditioner or a window motor;
and the terminal display module is connected with the display warning control module and used as an information display carrier of the display warning control module to display buzzing warning information and harmful gas concentration information in the vehicle.
Furthermore, the smell sensor module comprises a TVOC sensor and a CO electrically connected with the operational amplifier circuit2Sensor, CO sensor, temperature sensor, pressure sensor, TVOC sensor, CO2The sensor and the CO sensor are respectively used for detecting the TVOC concentration and CO in the vehicle2The concentration and the CO concentration, and the temperature sensor and the pressure sensor are respectively used for detecting the real-time environment temperature and the real-time environment pressure in the vehicle.
Furthermore, the display warning control module comprises an in-vehicle and out-vehicle buzzer, a gas concentration display and a BCM which are electrically connected with the microprocessor control unit module, and an air conditioner or a window motor which is electrically connected with the BCM, wherein the in-vehicle and out-vehicle buzzer is used for giving out a buzzing alarm, the gas concentration display is used for displaying the concentration of harmful gas in the vehicle, and the BCM is used for controlling the opening of the air conditioner or the window motor so as to enable air in the vehicle to flow and ventilate.
Furthermore, the terminal display module comprises an IVI electrically connected with the vehicle interior and exterior buzzer, a T-BOX electrically connected with the gas concentration display and a mobile phone client electrically connected with the T-BOX, wherein the IVI is used for displaying buzzing alarm information, and the T-BOX and the mobile phone client are used for remotely displaying harmful gas concentration information.
Further, vehicle state monitoring module includes start/flame-out detection module, the infrared sensor module with microprocessor control unit module electric connection, and start/flame-out detection module is used for detecting vehicle start/flame-out state, and the infrared sensor module is used for detecting whether personnel are detained.
An intelligent olfaction monitoring and controlling method in a vehicle comprises the following steps:
in the olfactory sensor module, TVOC sensor and CO2The sensor and the CO sensor respectively acquire TVOC and CO under the current environment in the vehicle2The CO concentration value is obtained, meanwhile, a pressure sensor obtains real-time environment pressure in the vehicle, a temperature sensor obtains real-time environment temperature in the vehicle, a standard voltage value is output, the standard voltage value is amplified and subjected to signal conversion processing through an operational amplification circuit module and an A/D analog-to-digital conversion module respectively, and the standard voltage value is input into a microprocessor control unit module;
in the vehicle state monitoring module, a starting/flameout detection module detects the starting/flameout state of a vehicle, and an infrared sensor module detects whether personnel are detained and inputs the detained personnel into a microprocessor control unit module;
the microprocessor control unit module calculates and acquires TVOC and CO under the current in-vehicle environment2And the CO concentration threshold is compared with the actual concentration value under the current environment in the vehicle, whether the concentration of harmful gas in the vehicle exceeds the standard or not is evaluated, and the method is implemented in the following mode:
when the vehicle is in a starting state and the concentration of harmful gas exceeds the standard, the microprocessor control unit module sends an instruction to the inside and outside buzzer to send out an alarm, simultaneously displays the red alarm that the concentration of the harmful gas in the vehicle exceeds the standard in a display screen of the vehicle-mounted information entertainment system, and sends a control instruction to the BCM to control the opening of an air conditioner or a window motor so as to enable the air in the vehicle to flow and ventilate;
when the vehicle is in a flameout state and a person stays, if the concentration of harmful gas exceeds the standard, the microprocessor control unit module sends an instruction to the buzzer inside and outside the vehicle to enable the buzzer to give an alarm, and meanwhile, standard exceeding information is sent to the mobile phone client through the T-BOX.
Further, in the microprocessor control unit module, TVOC and CO under the current in-vehicle environment2And the step of comparing the CO concentration threshold value with the actual concentration value under the current in-vehicle environment comprises the following steps: firstly, V (T, P) of each harmful gas is calculated,
Figure BDA0003384545910000051
wherein, V(T, P): the gas concentration threshold value meets the national standard under the environment of T temperature and P pressure; v (0 ℃, 1013 hPa): in a standard environment, a gas concentration threshold value meeting national standards; p: an actual measured ambient pressure value; t: and (3) actually measuring the ambient temperature value, and then comparing the obtained V (T, P) with the actual concentration value of the harmful gas in the current vehicle environment.
The invention has the beneficial effects that:
the invention integrates TVOC sensor and CO2The sensor, the CO sensor, the temperature sensor and the pressure sensor are respectively used for detecting TVOC and CO under the current environment in the vehicle2The system comprises a CO concentration value, a real-time environment pressure and a real-time environment temperature, harmful gas which possibly threatens the safety of people in the vehicle is basically contained, the gas threshold in national standards is converted into a gas threshold which accords with the current environment in the vehicle according to different environment requirements, then the gas threshold is compared with a detection value of a gas sensor, the accuracy of gas detection is improved, after the operation of a microprocessor control unit module is processed, the concentration value of the harmful gas in the vehicle is effectively reminded to the people in the vehicle to pay attention to the vehicle through a display warning control module, and meanwhile, the automatic control air conditioner or a vehicle window motor is controlled through the display warning control module, so that the people in the vehicle are always in safe gas concentration.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent olfaction monitoring and controlling system in a vehicle.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, an intelligent olfactory sensation monitoring and controlling system in a vehicle includes an olfactory sensor module, an operational amplifier circuit module, an a/D analog-to-digital conversion module, a microprocessor control unit module, a vehicle state monitoring module, a display warning control module, and a terminal display module.
The smell sensor module is connected with the operational amplification circuit module and is used for detecting the concentration of harmful gas in the vehicle, the real-time environmental pressure and the real-time environmental temperature in the vehicle in real time and outputting a standard voltage value to the operational amplification circuit module.
Above-mentioned technical scheme, olfactory sensor module includes TVOC sensor, CO with the equal electric connection of operational amplifier circuit2Sensor, CO sensor, temperature sensor, pressure sensor, TVOC sensor, CO2The sensor and the CO sensor are respectively used for detecting the TVOC concentration and CO in the vehicle2The concentration and the CO concentration, and the temperature sensor and the pressure sensor are respectively used for detecting the real-time environment temperature and the real-time environment pressure in the vehicle. Wherein, TVOC is total volatile organic compounds in the automobile.
Specifically, the table positions of the sensors in the vehicle are as follows:
CO2mounting position of the sensor: in order to accurately measure CO in relatively closed environment in a vehicle2The concentration and carbon dioxide sensor needs to be installed far away from drivers and passengers, and should be installed close to the middle of the carriage or close to the air outlet of the air conditioner.
Mounting position of CO sensor: since carbon monoxide is lighter than oxygen and floats above oxygen, the carbon monoxide is generally installed at the upper half part of the vehicle interior space, so that the concentration of carbon monoxide can be detected most accurately. Secondly, when installing the carbon monoxide sensor, attention should be paid to the fact that the detection part hangs down when hanging.
Mounting position of TVOC sensor: TVOC mainly measures the concentration of volatile toxic and harmful gases in the vehicle without CO2The concentration influence can be installed on an automobile instrument desk or a control panel.
Installation positions of the temperature sensor and the pressure sensor: the difference of temperature and pressure at different positions in the vehicle is not large, and the middle part of the carriage can be selected for installation.
The operational amplification circuit module is connected with the A/D analog-to-digital conversion module and is used for amplifying the standard voltage value output by the olfactory sensor module. The A/D analog-to-digital conversion module is connected with the microprocessor control unit module and is used for performing signal conversion on the direct current signal processed by the operational amplification circuit module.
The microprocessor control unit module is used for correcting the standard threshold value of the harmful gas concentration to obtain a real-time harmful gas concentration threshold value, comparing the real-time harmful gas concentration threshold value with the real-time harmful gas concentration value, sending the comparison information to the downstream module and making corresponding controlled response by the downstream module.
The vehicle state monitoring module is connected with the microprocessor control unit module and used for detecting whether people are left behind in a vehicle starting/flameout state and a flameout state or not and making a control instruction for the downstream module according to the monitoring signal by the microprocessor control unit module.
Above-mentioned technical scheme, vehicle state monitoring module includes and detects module, infrared sensor module with microprocessor control unit module electric connection's start/flame-out, and start/flame-out detects the module and is used for detecting vehicle start/flame-out state, and the infrared sensor module is used for whether the detection personnel are detained.
The display warning control module is connected with the microprocessor control unit module and used for carrying out buzzing warning according to the control instruction of the upstream module, displaying the concentration value of harmful gas in the current environment in the automobile and controlling the opening of the air conditioner or the window motor.
According to the technical scheme, the display warning control module comprises an in-vehicle and out-vehicle buzzer, a gas concentration display and a BCM which are electrically connected with the microprocessor control unit module, and an air conditioner or a window motor which is electrically connected with the BCM, wherein the in-vehicle and out-vehicle buzzer is used for giving out a buzzing alarm, the gas concentration display is used for displaying the concentration of harmful gas in the vehicle, and the BCM is used for controlling the air conditioner or the window motor to be started so as to enable air in the vehicle to flow and ventilate. Wherein, BCM is a vehicle body controller.
And the terminal display module is connected with the display warning control module and used as an information display carrier of the display warning control module to display buzzing warning information and harmful gas concentration information in the vehicle.
According to the technical scheme, the terminal display module comprises an IVI electrically connected with the vehicle interior and exterior buzzers, a T-BOX electrically connected with the gas concentration displayer and a mobile phone client electrically connected with the T-BOX, wherein the IVI is used for displaying buzzing alarm information, and the T-BOX and the mobile phone client are used for remotely displaying harmful gas concentration information. Wherein IVI is a vehicle-mounted infotainment system, and T-BOX is a remote information processor.
Specifically, the intelligent smell monitoring and controlling method in the vehicle comprises the following steps:
in the olfactory sensor module, TVOC sensor and CO2The sensor and the CO sensor respectively acquire TVOC and CO under the current environment in the vehicle2The CO concentration value is obtained, meanwhile, a pressure sensor obtains real-time environment pressure in the vehicle, a temperature sensor obtains real-time environment temperature in the vehicle, a standard voltage value is output, the standard voltage value is amplified and subjected to signal conversion processing through an operational amplification circuit module and an A/D analog-to-digital conversion module respectively, and the standard voltage value is input into a microprocessor control unit module;
in the vehicle state monitoring module, a starting/flameout detection module detects the starting/flameout state of a vehicle, and an infrared sensor module detects whether personnel are detained and inputs the detained personnel into a microprocessor control unit module;
the microprocessor control unit module calculates and acquires TVOC and CO under the current in-vehicle environment2And the CO concentration threshold is compared with the actual concentration value under the current environment in the vehicle, whether the concentration of harmful gas in the vehicle exceeds the standard or not is evaluated, and the method is implemented in the following mode:
when the vehicle is in a starting state and the concentration of harmful gas exceeds the standard, the microprocessor control unit module sends an instruction to the inside and outside buzzer to send out an alarm, simultaneously displays the red alarm that the concentration of the harmful gas in the vehicle exceeds the standard in a display screen of the vehicle-mounted information entertainment system, and sends a control instruction to the BCM to control the opening of an air conditioner or a window motor so as to enable the air in the vehicle to flow and ventilate;
when the vehicle is in a flameout state and a person stays, if the concentration of harmful gas exceeds the standard, the microprocessor control unit module sends an instruction to the buzzer inside and outside the vehicle to enable the buzzer to give an alarm, and meanwhile, standard exceeding information is sent to the mobile phone client through the T-BOX.
In the technical scheme, the microprocessor controls the unit module to control TVOC and CO under the current in-vehicle environment2The CO concentration threshold value and the actual concentration value under the current in-vehicle environment are calculatedThe row comparison procedure was as follows: firstly, V (T, P) of each harmful gas is calculated,
Figure BDA0003384545910000091
wherein, V (T, P): the gas concentration threshold value meets the national standard under the environment of T temperature and P pressure; v (0 ℃, 1013 hPa): in a standard environment, a gas concentration threshold value meeting national standards; p: an actual measured ambient pressure value; t: and (3) actually measuring the ambient temperature value, and then comparing the obtained V (T, P) with the actual concentration value of the harmful gas in the current vehicle environment.
The following are gas thresholds (reference national standards):
VOC gas detection threshold: 0.6mg/m3"indoor air quality Standard";
CO2gas detection threshold: 1000ppm, Standard for indoor air quality detection;
CO gas detection threshold: 10mg/m3The standard for CO content in workshops specified by the national standard.
Note: the threshold is the concentration of the gas in the standard environment.
In general, the invention relates to a vehicle-mounted gas detection technology realized by utilizing a sensor technology and a gas concentration algorithm, and a vehicle body system is automatically controlled on the basis. The invention integrates TVOC sensor and CO2The sensor, the CO sensor, the temperature sensor and the pressure sensor are respectively used for detecting TVOC and CO under the current environment in the vehicle2CO concentration value and real-time environment pressure, real-time environment temperature, the harmful gas that probably threatens personnel's safety in the car has basically been included, to the requirement of different environment, convert the gas threshold value among the national standard into the gas threshold value that accords with under the current car internal environment, then compare with gas sensor's detected value, the accuracy of gas detection has been improved, after microprocessor control unit module arithmetic processing, through showing warning control module and effectively reminding personnel in the car to pay attention to the concentration value of harmful gas in the car, simultaneously, through showing warning control module mobility's automatic control air conditioner or window motor, guarantee personnel in the car are in all the time safe concentration valueAt full gas concentration.
It should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, therefore, all equivalent changes in the principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides an intelligence sense of smell monitoring control system in car which characterized in that: the device comprises an olfactory sensor module, an operational amplifier circuit module, an A/D (analog/digital) conversion module, a microprocessor control unit module, a vehicle state monitoring module, a display warning control module and a terminal display module;
the smell sensor module is connected with the operational amplification circuit module and is used for detecting the concentration of harmful gas in the vehicle, the real-time environmental pressure and the real-time environmental temperature in the vehicle in real time and outputting a standard voltage value to the operational amplification circuit module;
the operational amplification circuit module is connected with the A/D analog-to-digital conversion module and is used for amplifying the standard voltage value output by the olfactory sensor module;
the A/D analog-to-digital conversion module is connected with the microprocessor control unit module and is used for performing signal conversion on the direct current signal processed by the operational amplification circuit module;
the microprocessor control unit module is used for correcting the standard threshold of the harmful gas concentration to obtain a real-time harmful gas concentration threshold, comparing the real-time harmful gas concentration threshold with the real-time harmful gas concentration value, sending the comparison information to the downstream module and making corresponding controlled response by the downstream module;
the vehicle state monitoring module is connected with the microprocessor control unit module and is used for detecting whether a person is left in a vehicle starting/flameout state and a flameout state or not and making a control instruction to the downstream module according to a monitoring signal by the microprocessor control unit module;
the display warning control module is connected with the microprocessor control unit module and is used for carrying out buzzing warning according to a control instruction of the upstream module, displaying a concentration value of harmful gas in the current environment in the automobile and controlling the opening of an air conditioner or a window motor;
and the terminal display module is connected with the display warning control module and used as an information display carrier of the display warning control module to display buzzing warning information and harmful gas concentration information in the vehicle.
2. The intelligent olfactory monitoring and controlling system in the vehicle as claimed in claim 1, wherein: the olfactory sensor module comprises a TVOC sensor and a CO electrically connected with the operational amplifier circuit2Sensor, CO sensor, temperature sensor, pressure sensor, TVOC sensor, CO2The sensor and the CO sensor are respectively used for detecting the TVOC concentration and CO in the vehicle2The concentration and the CO concentration, and the temperature sensor and the pressure sensor are respectively used for detecting the real-time environment temperature and the real-time environment pressure in the vehicle.
3. The intelligent olfactory monitoring and controlling system in the vehicle as claimed in claim 1, wherein: the display warning control module comprises an in-vehicle and out-vehicle buzzer, a gas concentration display and a BCM which are electrically connected with the microprocessor control unit module, and an air conditioner or a window motor which is electrically connected with the BCM, wherein the in-vehicle and out-vehicle buzzer is used for giving out a buzzing alarm, the gas concentration display is used for displaying the concentration of harmful gas in the vehicle, and the BCM is used for controlling the opening of the air conditioner or the window motor so as to enable air in the vehicle to flow and ventilate.
4. The intelligent olfactory monitoring and controlling system in the vehicle as claimed in claim 1, wherein: the terminal display module comprises an IVI electrically connected with the vehicle interior and exterior buzzers, a T-BOX electrically connected with the gas concentration display and a mobile phone client electrically connected with the T-BOX, wherein the IVI is used for displaying buzzing alarm information, and the T-BOX and the mobile phone client are used for remotely displaying harmful gas concentration information.
5. The intelligent olfactory monitoring and controlling system in the vehicle as claimed in claim 1, wherein: the vehicle state monitoring module comprises a start/flameout detection module and an infrared sensor module, wherein the start/flameout detection module is electrically connected with the microprocessor control unit module and is used for detecting the start/flameout state of the vehicle, and the infrared sensor module is used for detecting whether personnel are detained or not.
6. An in-vehicle intelligent smell monitoring control method is carried out based on the in-vehicle intelligent smell monitoring control system of claims 1-5, and is characterized in that: the method comprises the following steps:
in the olfactory sensor module, TVOC sensor and CO2The sensor and the CO sensor respectively acquire TVOC and CO under the current environment in the vehicle2The CO concentration value is obtained, meanwhile, a pressure sensor obtains real-time environment pressure in the vehicle, a temperature sensor obtains real-time environment temperature in the vehicle, a standard voltage value is output, the standard voltage value is amplified and subjected to signal conversion processing through an operational amplification circuit module and an A/D analog-to-digital conversion module respectively, and the standard voltage value is input into a microprocessor control unit module;
in the vehicle state monitoring module, a starting/flameout detection module detects the starting/flameout state of a vehicle, and an infrared sensor module detects whether personnel are detained and inputs the detained personnel into a microprocessor control unit module;
the microprocessor control unit module calculates and acquires TVOC and CO under the current in-vehicle environment2And the CO concentration threshold is compared with the actual concentration value under the current environment in the vehicle, whether the concentration of harmful gas in the vehicle exceeds the standard or not is evaluated, and the method is implemented in the following mode:
when the vehicle is in a starting state and the concentration of harmful gas exceeds the standard, the microprocessor control unit module sends an instruction to the inside and outside buzzer to send out an alarm, simultaneously displays the red alarm that the concentration of the harmful gas in the vehicle exceeds the standard in a display screen of the vehicle-mounted information entertainment system, and sends a control instruction to the BCM to control the opening of an air conditioner or a window motor so as to enable the air in the vehicle to flow and ventilate;
when the vehicle is in a flameout state and a person stays, if the concentration of harmful gas exceeds the standard, the microprocessor control unit module sends an instruction to the buzzer inside and outside the vehicle to enable the buzzer to give an alarm, and meanwhile, standard exceeding information is sent to the mobile phone client through the T-BOX.
7. The intelligent olfactory monitoring and controlling method in the vehicle as claimed in claim 6, wherein: in the microprocessor control unit module, TVOC and CO under the current in-vehicle environment2And the step of comparing the CO concentration threshold value with the actual concentration value under the current in-vehicle environment comprises the following steps: firstly, V (T, P) of each harmful gas is calculated,
Figure FDA0003384545900000031
wherein, V (T, P): the gas concentration threshold value meets the national standard under the environment of T temperature and P pressure; v (0 ℃, 1013 hPa): in a standard environment, a gas concentration threshold value meeting national standards; p: an actual measured ambient pressure value; t: and (3) actually measuring the ambient temperature value, and then comparing the obtained V (T, P) with the actual concentration value of the harmful gas in the current vehicle environment.
CN202111447823.5A 2021-11-30 2021-11-30 Intelligent smell monitoring control system and method in vehicle Pending CN114217653A (en)

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