Vehicle-mounted ventilation system based on carbon dioxide dynamic monitoring and intelligent control method thereof

Abstract

The invention discloses a vehicle-mounted ventilation system based on carbon dioxide dynamic monitoring and an intelligent control method thereof, and relates to the technical field of vehicle-mounted ventilation systems. According to the method, the CO2 concentration in the automobile can be efficiently regulated and controlled by monitoring the CO2 concentration in the automobile in real time, and through an intelligent early warning and control mechanism, the starting time of an external circulation mode of an automobile air conditioning system is reasonably shortened, energy consumption is reduced, and the endurance mileage of a new energy automobile is increased; and on the basis of dynamic monitoring of CO2, early warning of the vehicle-mounted oxygen content and intelligent control of a ventilation system are realized, and an intelligent, energy-saving and efficient method is provided to maintain the CO2 concentration in the vehicle at a proper level, so that the body health, comfort and driving safety of automobile passengers are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle ventilation systems, and in particular to a vehicle ventilation system based on dynamic monitoring of carbon dioxide and an intelligent control method thereof. Background Art

[0002] With the vigorous development of my country's automobile industry, the number of cars per capita has increased significantly. The impact of in-car air quality on human health, passenger comfort and driving safety has received increasing attention. At present, the automobile industry mainly uses sensors to detect inhalable particulate matter (PM 2.5 ) and temperature and humidity are monitored, and the temperature, humidity and concentration of air pollutants in the car are controlled through the vehicle air conditioning system and opening windows.

[0003] CO2, as a colorless and odorless gas, is an indicator of the ventilation status and oxygen content of a confined space, and its increased concentration is often not easily detected. The increased CO2 concentration and reduced oxygen content caused by insufficient ventilation in the car have a significant impact on the health, comfort and driving safety of the car occupants. When the CO2 concentration is too high, if it is not handled appropriately in time, it will cause passengers to experience discomfort symptoms such as fatigue, headache, dizziness, and even affect the driver's cognitive function and driving safety. The space inside the car is limited and closed for a long time. Especially when the car is driving at high speed, window ventilation is restricted, and the on-board external circulation air-conditioning system has become the main means of maintaining the air quality in the car. The continuous use of the external circulation air-conditioning system requires high energy consumption, which has a great impact on the cruising range of the car (especially the new energy electric car), and it is difficult to ensure the comfort of temperature and humidity in the car in hot summer and cold winter.

[0004] At present, the inhalable particulate matter (PM) in the air inside the car is mainly detected by sensors. 2.5 ) concentration and temperature and humidity. These monitoring measures are important for maintaining the basic air quality and comfort in the car, but they do not monitor the CO2 concentration, which has a significant impact on the health, comfort and driving safety of the car occupants. At the same time, although the existing in-car environment central controller can activate the air conditioning system and air purifier and other equipment to control the inhalable particulate matter (PM 2.5 ) concentration and temperature and humidity, but it cannot control the CO2 concentration in the car. In traditional operations, drivers and passengers usually need to manually turn on the external circulation mode of the air-conditioning system or open the windows to reduce the CO2 concentration in the car. This method is not intuitive in regulating CO2 concentration and relies on human intervention. It lacks an automated and intelligent control mechanism. In addition, long-term use of the external circulation mode of the air-conditioning system results in high energy consumption. It is also difficult to ensure the comfort of temperature and humidity in the car in hot summers and cold winters.

[0005] Therefore, the existing control method of the vehicle ventilation system has obvious deficiencies in maintaining an appropriate level of CO2 concentration in the vehicle, which makes it difficult to ensure comfort and driving safety in the vehicle, and fails to provide an energy-saving and effective method to maintain an appropriate CO2 concentration in the vehicle.

[0006] Therefore, a new solution to the above problems needs to be proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a vehicle ventilation system based on dynamic monitoring of carbon dioxide and an intelligent control method thereof, so as to solve the deficiencies of the prior art in ensuring the air quality in the vehicle and controlling the CO2 concentration. Based on the dynamic monitoring of CO2, early warning of the vehicle oxygen content and intelligent control of the ventilation system are realized, and an intelligent, energy-saving and efficient method is provided to maintain the CO2 concentration in the vehicle at an appropriate level, thereby ensuring the health, comfort and driving safety of the car occupants, and further solving the technical problems raised in the background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vehicle ventilation system based on dynamic monitoring of carbon dioxide, including an intelligent detection and control system for in-vehicle air quality, a CO2 early warning system and a ventilation equipment module;

[0009] The in-vehicle air quality intelligent detection and control system is responsible for real-time monitoring and adjustment of the in-vehicle air quality;

[0010] The CO2 early warning system is used to timely identify abnormal changes in CO2 concentration and issue early warnings;

[0011] The ventilation equipment module is used to intelligently adjust the ventilation status in the vehicle according to the warning signal to control the CO2 concentration in the vehicle;

[0012] The in-vehicle air quality intelligent detection and control system is connected to the CO2 early warning system and the ventilation equipment module respectively.

[0013] Furthermore, the in-vehicle air quality intelligent detection and control system includes a CO2 detection sensor module, a CO2 data real-time transmission module and an in-vehicle environment central controller;

[0014] The CO2 detection sensor module is an ST8310 CO2 detection sensor, which is used to continuously detect the CO2 concentration in the vehicle. The detection frequency of the CO2 detection sensor module is once per minute, with a resolution of 50ppm. The CO2 concentration measured by the CO2 detection sensor module is automatically transmitted to the CO2 early warning system and the in-vehicle environment central controller through the CO2 data real-time transmission module.

[0015] Furthermore, the CO2 early warning system includes an identification module, an alarm module and a data storage module;

[0016] The identification module is respectively connected to the alarm module, the data storage module and the in-vehicle air quality intelligent detection and control system;

[0017] The identification module is used to compare the CO2 concentration data with a preset threshold, generate an alarm signal, and send it to the alarm module and the data storage module;

[0018] The alarm module performs corresponding alarm operations according to the generated alarm signal;

[0019] The data storage module is responsible for storing alarm signals and CO2 concentration data.

[0020] Furthermore, the alarm module integrates a warning display unit and an alarm indicator light unit, and both the warning display unit and the alarm indicator light unit are connected to the identification module to ensure real-time response;

[0021] The warning display unit performs visual warning display according to the alarm signal transmitted by the recognition module;

[0022] The alarm indicator light unit is used to trigger the corresponding indicator light according to the same alarm signal, and use the light change to assist the early warning and enhance the warning effect.

[0023] Furthermore, the ventilation equipment module includes an external circulation ventilation system.

[0024] The intelligent control method of the vehicle ventilation system based on dynamic monitoring of carbon dioxide comprises at least the following steps:

[0025] The intelligent detection and control system of in-vehicle air quality is used to collect the CO2 concentration in the vehicle;

[0026] And send CO2 concentration data to the CO2 early warning system;

[0027] At the same time, a control signal is generated based on the comparison of CO2 concentration data with the set threshold value, and the control signal is sent to the ventilation equipment module;

[0028] The ventilation equipment module opens the external circulation ventilation system according to the control signal and keeps working for a preset time, then closes or does not open the external circulation ventilation system.

[0029] Furthermore, the CO2 early warning system generates an alarm signal according to the comparison result of the CO2 concentration data and the corresponding preset threshold value, and the alarm signal includes excellent, qualified, and unqualified;

[0030] The determination setting comprises at least the following steps:

[0031] Set the CO2 concentration to 450ppm as X Ⅰ ;

[0032] Set the CO2 concentration to 1000ppm as X Ⅱ ;

[0033] The preferred i <X Ⅰ ), qualified as (X Ⅰ ≤X i ≤X Ⅱ ), unqualified is (X Ⅱ <X i );

[0034] Where X i is the CO2 concentration in the car;

[0035] Furthermore, the application of the CO2 early warning system includes at least the following steps:

[0036] The CO2 concentration data provided by the CO2 data real-time transmission module is received and identified. After identification, there are three results:

[0037] The first result is: X i (CO2 concentration)>1000ppm, the warning display is unqualified, the alarm indicator light is red, and the sound alarm responds for 1 minute;

[0038] The second result is: 450ppm≤X i ≤1000ppm, the warning display is qualified and the alarm indicator light is yellow;

[0039] The third result is: X i If the value is less than 450ppm, the warning display will be excellent and the alarm indicator light will be green.

[0040] Furthermore, the central control of the ventilation equipment module controls the small ventilation fan according to the following three levels according to the in-vehicle environment:

[0041] The first level X i (CO2 concentration)>1000ppm, the external circulation ventilation system will start secondary ventilation and automatically shut down after running for 10 minutes. If the CO2 concentration is still over the standard after running for t minutes (t<10), it will automatically shut down after running for (t+10), and so on;

[0042] The second level 450ppm≤X i ≤1000ppm, the external circulation ventilation system will start the first-level ventilation and automatically shut down or manually shut down after 10 minutes of ventilation;

[0043] The third level X i If the temperature is less than 450ppm, the external circulation ventilation system will be shut down.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] 1. The present invention realizes precise control of the CO2 concentration in the car by means of dynamic monitoring of CO2 concentration, early warning of CO2 concentration in the car and intelligent control of the on-board ventilation system, with higher efficiency, automation level and more energy-saving mode. Compared with the existing in-car air quality detection method and the control method that relies on manual operation of the on-board ventilation system, this system realizes real-time data transmission and immediate response, effectively avoiding the impact on passenger comfort and safety caused by abnormal CO2 concentration. The intelligent early warning and multi-level ventilation adjustment mechanism not only improves the accuracy of CO2 concentration control in the car, but also saves energy by avoiding the ineffective operation of the on-board ventilation system.

[0046] 2. The system design of the present invention takes into account the closedness of the in-car environment and the personalized needs of users for air quality, and provides highly flexible and operable settings. By manually setting the CO2 concentration judgment threshold, the system can adapt to different environments and user preferences to ensure that the in-car air quality is always maintained at the best state. This innovative technical solution not only optimizes the driving experience of passengers, but also strengthens health and safety protection, and achieves significant improvements in existing in-car air quality and vehicle ventilation system control technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0048] Figure 1 It is a schematic diagram of the CO2 dynamic monitoring and early warning system and ventilation control module of the present invention;

[0049] Figure 2 This is a working flow chart of the CO2 dynamic monitoring and early warning system and ventilation control of the present invention. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0051] Embodiment 1:

[0052] See also Figure 1 , a vehicle ventilation system based on dynamic monitoring of carbon dioxide, including an intelligent detection and control system for in-vehicle air quality, a CO2 early warning system and a ventilation equipment module;

[0053] The intelligent detection and control system for in-car air quality is responsible for real-time monitoring and adjustment of in-car air quality;

[0054] The CO2 early warning system is used to promptly identify abnormal changes in CO2 concentration and issue early warnings;

[0055] The ventilation equipment module is used to intelligently adjust the ventilation status in the vehicle according to the warning signal to control the CO2 concentration in the vehicle;

[0056] The intelligent detection and control system for in-vehicle air quality is connected to the CO2 early warning system and ventilation equipment module respectively.

[0057] The in-vehicle air quality intelligent detection and control system includes a CO2 detection sensor module, a CO2 data real-time transmission module and an in-vehicle environment central controller;

[0058] The CO2 detection sensor module is the ST8310 CO2 detection sensor. The CO2 detection sensor module is used to continuously detect the CO2 concentration in the vehicle. The detection frequency of the CO2 detection sensor module is once per minute, with a resolution of 50ppm. The CO2 concentration measured by the CO2 detection sensor module is automatically transmitted to the CO2 early warning system and the in-vehicle environment central controller through the CO2 data real-time transmission module.

[0059] The CO2 early warning system includes an identification module, an alarm module and a data storage module;

[0060] The recognition module is respectively connected with the alarm module, the data storage module and the in-vehicle air quality intelligent detection and control system;

[0061] The recognition module is used to compare the CO2 concentration data with the preset threshold, generate an alarm signal, and send it to the alarm module and the data storage module;

[0062] The alarm module performs corresponding alarm operations according to the generated alarm signal;

[0063] The data storage module is responsible for storing alarm signals and CO2 concentration data.

[0064] The alarm module integrates the early warning display unit and the alarm indicator light unit, both of which are connected to the identification module to ensure real-time response;

[0065] The warning display unit performs visual warning display according to the alarm signal transmitted by the recognition module;

[0066] The alarm indicator light unit is used to trigger the corresponding indicator light according to the same alarm signal, using light changes to assist early warning and enhance the warning effect.

[0067] The ventilation equipment module includes an external circulation ventilation system.

[0068] Embodiment 2:

[0069] See also Figure 2 , based on the above embodiment, this embodiment proposes an intelligent control method for a vehicle ventilation system based on dynamic monitoring of carbon dioxide;

[0070] The intelligent control method of the vehicle ventilation system based on dynamic monitoring of carbon dioxide comprises at least the following steps:

[0071] The intelligent detection and control system for in-car air quality collects CO2 concentration in the car;

[0072] And send CO2 concentration data to the CO2 early warning system;

[0073] At the same time, a control signal is generated based on the comparison of CO2 concentration data with the set threshold value, and the control signal is sent to the ventilation equipment module;

[0074] The ventilation equipment module opens the external circulation ventilation system according to the control signal and keeps working for a preset time, then closes or does not open the external circulation ventilation system.

[0075] The CO2 early warning system generates an alarm signal based on the comparison result of CO2 concentration data and its corresponding preset threshold value. The alarm signals include excellent, qualified, and unqualified.

[0076] The determination setting includes at least the following steps:

[0077] Set the CO2 concentration to 450ppm as X Ⅰ ;

[0078] Set the CO2 concentration to 1000ppm as X Ⅱ ;

[0079] Youwei (X i <X Ⅰ ), qualified as (X Ⅰ ≤X i ≤X Ⅱ ), unqualified is (X Ⅱ <X i );

[0080] Where X i is the CO2 concentration in the car;

[0081] The application of the CO2 early warning system includes at least the following steps:

[0082] The CO2 concentration data provided by the CO2 data real-time transmission module is received and identified. After identification, there are three results:

[0083] The first result is: X i(CO2 concentration)>1000ppm, the warning display is unqualified, the alarm indicator light is red, and the sound alarm responds for 1 minute;

[0084] The second result is: 450ppm≤X i ≤1000ppm, the warning display is qualified and the alarm indicator light is yellow;

[0085] The third result is: X i If the value is less than 450ppm, the warning display will be excellent and the alarm indicator light will be green.

[0086] At the same time, the central control of the ventilation equipment module controls the small ventilation fan according to the following three levels according to the in-vehicle environment:

[0087] The first level X i (CO2 concentration)>1000ppm, the external circulation ventilation system will start secondary ventilation and automatically shut down after running for 10 minutes. If the CO2 concentration is still over the standard after running for t minutes (t<10), it will automatically shut down after running for (t+10), and so on;

[0088] The second level 450ppm≤X i ≤1000ppm, the external circulation ventilation system will start the first-level ventilation and automatically shut down or manually shut down after 10 minutes of ventilation;

[0089] The third level X i If the CO2 concentration in the vehicle is less than 450ppm, the external circulation ventilation system will be shut down. This regulation can ensure that the CO2 concentration in the vehicle is always kept at an appropriate level, and at the same time avoid opening the ventilation equipment for a long time, providing a healthier, more comfortable and safer vehicle environment for the driver and passengers with higher efficiency and lower energy consumption.

[0090] In summary, the present invention can not only realize efficient regulation of the CO2 concentration in the car by real-time monitoring of the CO2 concentration in the car, but also reasonably reduce the opening time of the external circulation mode of the automobile air-conditioning system through an intelligent early warning and control mechanism, reduce energy consumption, and improve the cruising range of new energy vehicles. In addition, due to the dynamic monitoring based on CO2, the early warning of the vehicle oxygen content and the intelligent control of the ventilation system are realized, providing an intelligent, energy-saving and efficient method to maintain the CO2 concentration in the car at an appropriate level, thereby ensuring the health, comfort and driving safety of the car occupants.

[0091] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. The vehicle ventilation system based on dynamic monitoring of carbon dioxide is characterized by: Including intelligent detection and control system for in-vehicle air quality, CO2 early warning system and ventilation equipment module; The in-vehicle air quality intelligent detection and control system is responsible for real-time monitoring and adjustment of the in-vehicle air quality; The CO2 early warning system is used to timely identify abnormal changes in CO2 concentration and issue early warnings; The ventilation equipment module is used to intelligently adjust the ventilation status in the vehicle according to the warning signal to control the CO2 concentration in the vehicle; The in-vehicle air quality intelligent detection and control system is connected to the CO2 early warning system and the ventilation equipment module respectively.

2. The vehicle-mounted ventilation system based on dynamic carbon dioxide monitoring according to claim 1 is characterized in that: The in-vehicle air quality intelligent detection and control system includes a CO2 detection sensor module, a CO2 data real-time transmission module and an in-vehicle environment central controller; The CO2 detection sensor module is an ST8310 CO2 detection sensor, which is used to continuously detect the CO2 concentration in the vehicle. The detection frequency of the CO2 detection sensor module is once per minute, with a resolution of 50ppm. The CO2 concentration measured by the CO2 detection sensor module is automatically transmitted to the CO2 early warning system and the in-vehicle environment central controller through the CO2 data real-time transmission module.

3. The vehicle-mounted ventilation system based on dynamic carbon dioxide monitoring according to claim 1 is characterized in that: The CO2 early warning system includes an identification module, an alarm module and a data storage module; The identification module is respectively connected to the alarm module, the data storage module and the in-vehicle air quality intelligent detection and control system; The identification module is used to compare the CO2 concentration data with a preset threshold, generate an alarm signal, and send it to the alarm module and the data storage module; The alarm module performs corresponding alarm operations according to the generated alarm signal; The data storage module is responsible for storing alarm signals and CO2 concentration data.

4. The vehicle-mounted ventilation system based on dynamic carbon dioxide monitoring according to claim 1 is characterized in that: The alarm module integrates a warning display unit and an alarm indicator light unit, and both the warning display unit and the alarm indicator light unit are connected to the identification module to ensure real-time response; The warning display unit performs visual warning display according to the alarm signal transmitted by the recognition module; The alarm indicator light unit is used to trigger the corresponding indicator light according to the same alarm signal, and use the light change to assist the early warning and enhance the warning effect.

5. The vehicle-mounted ventilation system based on dynamic carbon dioxide monitoring according to claim 1 is characterized in that: The ventilation equipment module includes an external circulation ventilation system.

6. An intelligent control method for a vehicle ventilation system based on dynamic monitoring of carbon dioxide, used for the vehicle ventilation system based on dynamic monitoring of carbon dioxide according to any one of claims 1 to 5, characterized in that: At least the following steps are included: The intelligent detection and control system of in-vehicle air quality is used to collect the CO2 concentration in the vehicle; And send CO2 concentration data to the CO2 early warning system; At the same time, a control signal is generated based on the comparison of CO2 concentration data with the set threshold value, and the control signal is sent to the ventilation equipment module; The ventilation equipment module opens the external circulation ventilation system according to the control signal and keeps working for a preset time, then closes or does not open the external circulation ventilation system.

7. The intelligent control method of the vehicle ventilation system based on dynamic monitoring of carbon dioxide according to claim 6 is characterized in that: The CO2 early warning system generates an alarm signal according to the comparison result of the CO2 concentration data and the corresponding preset threshold value, and the alarm signal includes excellent, qualified, and unqualified; The determination setting comprises at least the following steps: Set the CO2 concentration to 450ppm as X Ⅰ ; Set the CO2 concentration to 1000ppm as X Ⅱ； The preferred i <X Ⅰ ), qualified as (X Ⅰ ≤X i ≤X Ⅱ ), unqualified is (X Ⅱ <X i ); Where X i is the CO2 concentration in the car.

8. The intelligent control method of the vehicle ventilation system based on dynamic monitoring of carbon dioxide according to claim 7 is characterized in that: The application of CO2 early warning system includes at least the following steps: The CO2 concentration data provided by the CO2 data real-time transmission module is received and identified. After identification, there are three results: The first result is: X i (CO2 concentration)>1000ppm, the warning display is unqualified, the alarm indicator light is red, and the sound alarm responds for 1 minute; The second result is: 450ppm≤X i ≤1000ppm, the warning display is qualified and the alarm indicator light is yellow; The third result is: X i If the value is less than 450ppm, the warning display will be excellent and the alarm indicator light will be green.

9. The intelligent control method of the vehicle ventilation system based on dynamic monitoring of carbon dioxide according to claim 8 is characterized in that: At the same time, the central control of the ventilation equipment module controls the small ventilation fan according to the following three levels according to the in-vehicle environment: The first level X i (CO2 concentration)>1000ppm, the external circulation ventilation system will start secondary ventilation and automatically shut down after running for 10 minutes. If the CO2 concentration is still over the standard after running for t minutes (t<10), it will automatically shut down after running for (t+10), and so on. The second level 450ppm≤X i ≤1000ppm, the external circulation ventilation system will start the first-level ventilation and automatically shut down or manually shut down after 10 minutes of ventilation; The third level X i If the temperature is less than 450ppm, the external circulation ventilation system will be shut down.

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