Environment adjusting method and system for vehicle cabin and vehicle terminal

Abstract

The invention relates to the technical field of vehicle control, and discloses an environment adjusting method and system for a vehicle cabin and a vehicle terminal. The method comprises the following steps: extracting current gas intensity and gas frequency domain characteristics from a gas detection signal of a vehicle cabin, and classifying the current gas intensity and gas frequency domain characteristics as current gas characteristics to obtain a current environment type; and generating an equipment control instruction for controlling the environment adjusting equipment according to the current environment type and the current gas intensity, calculating through the gas detection signal to obtain the current gas intensity, classifying according to the current gas characteristics to obtain the current environment type, and combining the current environment type and the current gas intensity as a control basis to control the environment adjusting equipment. Fine-grained adjustment of the smell of the vehicle cabin is achieved through dynamic control over the environment adjusting equipment, and therefore the control efficiency of the environment adjusting equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and particularly to an environment adjustment method, system and vehicle terminal for a vehicle cockpit. Background Art

[0002] With the rapid improvement of the intelligent level of vehicle cockpits, users' requirements for the comfort of the cockpit environment are becoming increasingly stringent. Among them, due to the complex and diverse sources of abnormal odors in modern vehicle cockpits, the odor environment has become one of the key factors affecting the driving experience. These abnormal odors mainly include the user's own odor, the residual odor of food or beverages, volatile organic compounds released by interior materials, and external environmental air flowing in through the air conditioner or doors and windows, which not only reduce the freshness of the cockpit environment, but may also cause physiological discomforts such as dizziness and nausea in users, affect the driver's attention, and pose potential safety hazards.

[0003] Currently, the problem of abnormal odors in vehicle cockpits is usually solved by using environment adjustment devices. For example, activated carbon filters in air conditioning devices are used for air filtration, and the fragrance system is turned on to cover up abnormal odors. However, these environment adjustment devices all adopt independent and static control logics, and are unable to identify the types, concentrations and dynamic change characteristics of the odors in the cockpit, making it difficult to achieve fine-grained dynamic control, resulting in low control efficiency and unable to meet users' intelligent requirements for vehicle cockpits. Summary of the Invention

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a comprehensive review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preamble to the subsequent detailed description.

[0005] In view of the above-mentioned disadvantages of the prior art, the present application provides an environment adjustment method, system and vehicle terminal for a vehicle cockpit to improve the control efficiency of environment adjustment devices.

[0006] The present application provides an environment adjustment method for a vehicle cockpit, including: obtaining a gas detection signal by performing gas detection on the vehicle cockpit; calculating according to the gas detection signal to obtain the current gas intensity, and converting the gas detection signal from the time domain to the frequency domain to obtain the gas frequency domain characteristics; splicing according to the current gas intensity and the gas frequency domain characteristics to obtain the current gas characteristics, and classifying the current gas characteristics to obtain the current environment type; generating a device control instruction according to the current environment type and the current gas intensity to control the environment adjustment device in the vehicle cockpit according to the device control instruction.

[0007] In an embodiment of the present application, by performing gas detection on the vehicle cockpit to obtain a gas detection signal, it includes: performing gas detection on the vehicle cockpit through a gas sensor preset in the vehicle cockpit to obtain an initial detection signal corresponding to a preset time window; performing filtering processing on the initial detection signal according to the window size of the preset time window to obtain a gas detection signal.

[0008] In an embodiment of the present application, splicing is performed according to the current gas intensity and the gas frequency domain characteristics to obtain a current gas feature, including: collecting cockpit environment data of the vehicle cockpit in a preset time window, where the cockpit environment data includes at least one of environmental temperature, environmental humidity, environmental air pressure, and gas diffusion rate; splicing according to the current gas intensity, the gas frequency domain characteristics, and the cockpit environment data to obtain a current gas feature.

[0009] In an embodiment of the present application, the method further includes: obtaining the vehicle driving speed corresponding to a preset time window, and calculating according to the cockpit environment data and the preset time window to obtain the data change rate corresponding to the cockpit environment data; determining the gas detection frequency according to the data change rate and the vehicle driving speed, where there is a positive correlation between the gas detection frequency and the data change rate, and there is a positive correlation between the gas detection frequency and the vehicle driving speed; performing gas detection on the vehicle cockpit according to the gas detection frequency.

[0010] In an embodiment of the present application, by classifying the current gas feature, the current environment type is obtained, including: training a preset classification model through a gas feature sample with an environment type label, and using the classification model after the model training is completed as a gas classification model; inputting the current gas feature into the gas classification model, and obtaining the current environment type output by the gas classification model.

[0011] In an embodiment of the present application, if the environmental conditioning device includes an aroma device, device control instructions are generated according to the current environmental type and the current gas intensity, including at least one of the following: if the current environmental type is an abnormal gas environment and the current gas intensity is greater than or equal to a preset aroma trigger threshold, the aroma device is turned on; if the current environmental type is an abnormal gas environment, a positive correlation between the current gas intensity and the aroma release rate is obtained, so as to match the aroma release rate corresponding to the current gas intensity according to the positive correlation, and the aroma device is controlled according to the aroma release rate; if the current environmental type is an aroma gas environment, a negative correlation between the current gas intensity and the aroma release rate is obtained, so as to match the aroma release rate corresponding to the current gas intensity according to the negative correlation, and the aroma device is controlled according to the aroma release rate; if the current environmental type is an aroma gas environment and the current gas intensity is greater than or equal to a preset safety intensity threshold, the aroma device is turned off.

[0012] In an embodiment of the present application, the positive correlation between the current gas intensity and the aroma release rate is characterized by the following formula: In the formula, Q is the aroma release rate, k is the rate scaling factor set by the user, I(t) is the current gas intensity corresponding to time t, T2 is the preset abnormal threshold, δT is the preset intensity interval size, and β is the preset rate adjustment coefficient.

[0013] In an embodiment of the present application, the negative correlation between the current gas intensity and the aroma release rate is characterized by the following formula: In the formula, e(t) is the error signal, and the error signal is obtained by calculating the current gas intensity and the preset aroma threshold, K p is the preset proportionality coefficient, K i is the preset integral coefficient, K d is the preset differential coefficient.

[0014] In an embodiment of the present application, if the environmental conditioning device includes an air conditioning device, generating a device control instruction according to the current environmental type and the current gas intensity includes at least one of the following: if the current environmental type is an abnormal gas environment and the current gas intensity is greater than or equal to a preset external circulation trigger threshold, controlling the air conditioning device to enter the external circulation mode; if the current environmental type is an abnormal gas environment and the current gas intensity is greater than or equal to the external circulation trigger threshold, determining the air conditioning wind speed according to the current gas intensity and controlling the air conditioning device according to the air conditioning wind speed, where there is a positive correlation between the current gas intensity and the air conditioning wind speed; if the current environmental type is an abnormal gas environment and the current gas intensity is less than the external circulation trigger threshold, controlling the air conditioning device to enter the internal circulation mode; if the current environmental type is a fragrance gas environment and the current gas intensity is greater than or equal to a preset safety intensity threshold, controlling the air conditioning device to enter the external circulation mode.

[0015] The present application provides an environmental conditioning system for a vehicle cockpit, including: a detection module configured to obtain a gas detection signal by performing gas detection on the vehicle cockpit; a calculation module configured to calculate according to the gas detection signal to obtain a current gas intensity and convert the gas detection signal from the time domain to the frequency domain to obtain gas frequency domain characteristics; a classification module configured to splice according to the current gas intensity and the gas frequency domain characteristics to obtain a current gas feature and classify the current gas feature to obtain a current environmental type; an adjustment module configured to generate a device control instruction according to the current environmental type and the current gas intensity to control an environmental conditioning device in the vehicle cockpit according to the device control instruction.

[0016] The present application provides a vehicle terminal, including: a processor and a memory; the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory so that the vehicle terminal executes the above method.

[0017] Advantages of the present application:

[0018] By extracting the current gas intensity and gas frequency domain features from the gas detection signal of the vehicle cockpit, and classifying the current gas intensity and gas frequency domain characteristics as the current gas feature to obtain the current environmental type, a device control instruction for controlling the environmental conditioning device is generated according to the current environmental type and the current gas intensity. In this way, not only the current gas intensity is calculated through the gas detection signal, but also the current environmental type is obtained by classifying the current gas feature. Combining the current environmental type and the current gas intensity as the control basis, the fine-grained adjustment of the smell in the vehicle cockpit is realized through the dynamic control of the environmental conditioning device, thereby improving the control efficiency of the environmental conditioning device. Brief Description of the Drawings

[0019] Figure 1 is a schematic flowchart of an environmental adjustment method for a vehicle cockpit in an embodiment of the present application;

[0020] Figure 2 is a schematic flowchart of a gas detection signal acquisition method in an embodiment of the present application;

[0021] Figure 3 is a schematic flowchart of a current gas feature acquisition method in an embodiment of the present application;

[0022] Figure 4 is a schematic flowchart of a current environment type acquisition method in an embodiment of the present application;

[0023] Figure 5 is a schematic flowchart of a classification method for the current environment type in an embodiment of the present application;

[0024] Figure 6 is a schematic flowchart of an aroma device control method in an embodiment of the present application;

[0025] Figure 7 is a schematic flowchart of an air conditioning device control method in an embodiment of the present application;

[0026] Figure 8 is a schematic structural diagram of an environmental adjustment system for a vehicle cockpit in an embodiment of the present application;

[0027] Figure 9 is a schematic structural diagram of a vehicle terminal in an embodiment of the present invention. Detailed Description of the Embodiments

[0028] The following uses specific specific examples to illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and sub-samples in the embodiments can be combined with each other.

[0029] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0030] In the following description, numerous specific details are explored to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0031] In the specification, claims, and above-mentioned drawings of this application, the terms "first", "second", etc. are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances for the embodiments of this application described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0032] Unless otherwise specified, the term "plurality" means two or more.

[0033] In this application, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" is a description of the association relationship of objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0035] In combination with Figure 1 As shown, this application provides an environmental adjustment method for a vehicle cockpit, including:

[0036] Step S101, obtaining a gas detection signal by detecting the gas in the vehicle cockpit;

[0037] Step S102, calculating according to the gas detection signal to obtain the current gas intensity, and converting the gas detection signal from the time domain to the frequency domain to obtain the gas frequency domain characteristics;

[0038] Step S103, splicing according to the current gas intensity and the gas frequency domain characteristics to obtain the current gas characteristics, and classifying the current gas characteristics to obtain the current environmental type;

[0039] Step S104, generating a device control instruction according to the current environmental type and the current gas intensity to control the environmental adjustment device in the vehicle cockpit according to the device control instruction.

[0040] By adopting the environmental adjustment method for a vehicle cockpit provided in this application, the current gas intensity and gas frequency domain characteristics are extracted from the gas detection signal of the vehicle cockpit, and the current gas intensity and gas frequency domain characteristics are classified as the current gas characteristics to obtain the current environmental type, so as to generate a device control instruction for controlling the environmental adjustment device according to the current environmental type and the current gas intensity. In this way, not only the current gas intensity is obtained through calculation of the gas detection signal, but also the current environmental type is obtained through classification according to the current gas characteristics. Combining the current environmental type and the current gas intensity as the control basis, the fine-grained adjustment of the smell in the vehicle cockpit is realized through the dynamic control of the environmental adjustment device, thereby improving the control efficiency of the environmental adjustment device.

[0041] Combined with Figure 2 As shown, in step S101, by performing gas detection on the vehicle cockpit, a gas detection signal is obtained, including:

[0042] Step S201, gas detection is performed on the vehicle cockpit through a gas sensor preset in the vehicle cockpit to obtain an initial detection signal corresponding to a preset time window;

[0043] Step S202, the initial detection signal is filtered according to the window size of the preset time window to obtain a gas detection signal.

[0044] In some embodiments, by setting different types of gas sensors in the vehicle cockpit, a gas sensor array is formed. Among them, part of the gas sensors are shown in Table 1; each gas sensor outputs an initial detection signal over time t, and the initial detection signals collected by each sensor are respectively marked as (S1, S2, S3,..., S n ), and the noise signal received by the i-th gas sensor at time t is denoted as N i (t); the mean filtering method is used to filter the initial detection signal, effectively smoothing the noise, removing the noise interference, significantly reducing the influence of the noise on the control basis, and providing a data basis for subsequent control strategies.

[0045] Table 1

[0046]

[0047] In some embodiments, the gas detection signal is obtained through formula (1):

[0048]

[0049] In formula (1), X i (t) is the gas detection signal of the i-th gas sensor at time t, and S i (t - j) is the initial detection signal of the i-th gas sensor at time (t - j).

[0050] Combine Figure 3 As shown, in step S103, splicing is performed according to the current gas intensity and gas frequency domain characteristics to obtain the current gas characteristics, including:

[0051] Step S301, collecting cockpit environment data of the vehicle cockpit within a preset time window;

[0052] Among them, the cockpit environment data includes at least one of ambient temperature, ambient humidity, ambient air pressure, and gas diffusion rate;

[0053] Step S302, splicing according to the current gas intensity, gas frequency domain characteristics, and cockpit environment data to obtain the current gas characteristics.

[0054] In some embodiments, the current gas intensity is a key indicator for measuring the odor condition inside the vehicle. The current gas intensity is obtained by integrating the signals within a time window, which can comprehensively and fully reflect the overall intensity level of the odor in the vehicle cockpit during this time period, providing an important quantitative basis for subsequent odor analysis and processing.

[0055] In some embodiments, the current gas intensity is calculated by formula (2):

[0056]

[0057] In formula (2), I(t) is the current gas intensity corresponding to time t, and Δt is the window length of the preset time window.

[0058] In some embodiments, the gas detection signal is converted from a time-domain signal to a frequency-domain signal through fast Fourier transform to obtain the gas frequency domain characteristics. The gas frequency domain characteristics reflect the distribution of gas signals in the vehicle cockpit at different frequencies, which helps to further analyze the components and characteristics of the odor, providing a richer and deeper information dimension for the accurate classification and processing of the odor.

[0059] In some embodiments, the gas frequency domain characteristics are calculated by formula (3):

[0060]

[0061] In formula (3), f(t) is the gas frequency domain characteristics, is the fast Fourier transform, and ω is the preset frequency domain characteristic parameter.

[0062] In some embodiments, a temperature sensor and a humidity sensor are provided in the vehicle cockpit. In a high-temperature and high-humidity environment, the thermal motion of gas molecules is intensified. Due to the increased speed of motion, the gas diffusion rate increases significantly. Therefore, the ambient temperature, ambient humidity, and gas diffusion rate are used as the current gas characteristics to provide more comprehensive gas data.

[0063] In some embodiments, the gas diffusion rate is calculated by formula (4):

[0064]

[0065] In formula (4), D(T, H) is the gas diffusion rate; D0 is the preset reference diffusion rate; E a is the activation energy, which is used to characterize the energy barrier that gas molecules need to overcome to achieve diffusion; R is the preset gas constant; T0 is the preset reference temperature, T is the ambient temperature; α is the preset humidity influence coefficient, and H is the ambient humidity.

[0066] In some embodiments, a pressure sensor is provided in the vehicle cockpit. In a high-pressure environment, the distance between gas molecules decreases and the distribution becomes more dense, resulting in an increase in gas concentration. Therefore, the ambient air pressure is used as the current gas characteristic to provide more comprehensive gas data.

[0067] In some embodiments, the current gas characteristics are represented as where T(t) is the ambient temperature corresponding to time t, H(t) is the ambient humidity corresponding to time t, and P(t) is the ambient air pressure corresponding to time t.

[0068] Optionally, the method further includes: obtaining the vehicle driving speed corresponding to a preset time window, and calculating based on the cockpit environment data and the preset time window to obtain the data change rate corresponding to the cockpit environment data; determining the gas detection frequency according to the data change rate and the vehicle driving speed, where there is a positive correlation between the gas detection frequency and the data change rate, and there is a positive correlation between the gas detection frequency and the vehicle driving speed; performing gas detection on the vehicle cockpit according to the gas detection frequency.

[0069] In some embodiments, the gas detection frequency is calculated by formula (5):

[0070]

[0071] In formula (5), f s (t) is the gas detection frequency corresponding to time t, f s,min is the preset minimum value of the gas detection frequency, f s,max is the preset maximum value of the gas detection frequency, v(t) is the vehicle driving speed corresponding to time t, v maxis the preset maximum value of the vehicle driving speed, η env (t) The data change rate corresponding to time t.

[0072] In some embodiments, when the vehicle driving speed is relatively fast, the gas detection frequency is increased to adapt to the dynamic changes of the vehicle driving environment.

[0073] In some embodiments, the data change rate comprehensively considers the change rates of cockpit environment data such as ambient temperature, ambient humidity, ambient air pressure, and gas diffusion rate. When the cockpit environment data is relatively stable, the gas detection frequency is reduced, while when the cockpit environment data fluctuates greatly, the gas detection frequency is increased, so as to accurately adapt to the changes of the cockpit environment.

[0074] Combined with Figure 4 As shown, in step S103, by classifying the current gas characteristics, the current environment type is obtained, including:

[0075] Step S401, training the preset classification model with gas feature samples with environment type labels, and using the trained classification model as the gas classification model;

[0076] Step S402, inputting the current gas characteristics into the gas classification model, and obtaining the current environment type output by the gas classification model.

[0077] In some embodiments, a support vector machine is used as the classification model, where the decision boundary of the support vector machine is w and b are model parameters determined through model training; through the decision boundary, the gas classification model can classify different gas characteristics and divide them into corresponding odor categories.

[0078] In some embodiments, the current environment type includes an abnormal gas environment and an aroma gas environment, where the abnormal gas environment is divided into an environment with excessive hydrogen sulfide, an environment with excessive carbon dioxide, an environment with excessive volatile organic compounds, etc.; by subdividing the abnormal gas environment, different device control instructions are implemented.

[0079] Combined with Figure 5 As shown, the present application provides a classification method for the current environment type, including:

[0080] Step S501, detecting the gas in the vehicle cockpit through a gas sensor preset in the vehicle cockpit to obtain an initial detection signal corresponding to a preset time window;

[0081] Step S502, filtering the initial detection signal according to the window size of the preset time window to obtain a gas detection signal, and jumping to step S503 and step S504;

[0082] Step S503: Calculate based on the gas detection signal to obtain the current gas intensity, and then jump to step S506;

[0083] Step S504: Convert the gas detection signal from the time domain to the frequency domain to obtain the gas frequency domain characteristics, and then jump to step S506;

[0084] Step S505: Collect the cockpit environment data of the vehicle cockpit within a preset time window, and then jump to step S506;

[0085] Step S506: Concatenate the current gas intensity, gas frequency domain characteristics, and cockpit environment data to obtain the current gas feature;

[0086] Step S507: Input the current gas feature into the gas classification model and obtain the current environment type output by the gas classification model;

[0087] Among them, the preset classification model is trained with gas feature samples with environment type labels, and the trained classification model is used as the gas classification model.

[0088] Optionally, if the environmental adjustment device includes an aroma device, generate a device control instruction according to the current environment type and the current gas intensity, including at least one of the following: if the current environment type is an abnormal gas environment and the current gas intensity is greater than or equal to the preset aroma trigger threshold, turn on the aroma device; if the current environment type is an abnormal gas environment, obtain the positive correlation between the current gas intensity and the aroma release rate, match the aroma release rate corresponding to the current gas intensity according to the positive correlation, and control the aroma device according to the aroma release rate; if the current environment type is an aroma gas environment, obtain the negative correlation between the current gas intensity and the aroma release rate, match the aroma release rate corresponding to the current gas intensity according to the negative correlation, and control the aroma device according to the aroma release rate; if the current environment type is an aroma gas environment and the current gas intensity is greater than or equal to the preset safety intensity threshold, turn off the aroma device.

[0089] In some embodiments, when it is detected that the current gas intensity is greater than or equal to the aroma trigger threshold, trigger the aroma device to improve the in-vehicle odor environment.

[0090] In some embodiments, the trigger condition is characterized by formula (6):

[0091]

[0092] In formula (6), T1 is the preset aroma trigger threshold.

[0093] In some embodiments, when Switch1 = 1, it means that the abnormal gas has exceeded the fragrance trigger threshold. By activating the fragrance device, the abnormal gas is masked, improving the in-vehicle environmental quality; when Switch1 = 0, the abnormal gas in the vehicle is within an acceptable range, and the fragrance system remains closed, reducing the fragrance usage cost and improving the intelligence of the fragrance device.

[0094] In some embodiments, if the current environmental type is an abnormal gas environment, there is a positive correlation between the current gas intensity and the fragrance release rate, that is, the greater the current gas intensity, the faster the fragrance release rate.

[0095] Optionally, the positive correlation between the current gas intensity and the fragrance release rate is characterized by formula (7):

[0096]

[0097] In formula (7), Q is the fragrance release rate, k is the rate scaling factor set by the user, T2 is the preset abnormal threshold, δT is the size of the preset intensity interval, and β is the preset rate adjustment coefficient.

[0098] In some embodiments, if the current environmental type is an abnormal gas environment, when the fragrance device is activated, the current odor intensity of the abnormal gas is divided into different intensity levels according to the preset intensity interval size. The higher the intensity level of the abnormal gas, the faster the fragrance release rate, thereby dynamically adjusting the fragrance release rate to achieve precise control of the fragrance release amount; the rate adjustment coefficient flexibly adjusts the fragrance release rate, which can be set according to actual needs and experience. At the same time, the rate scaling factor is a user-defined intensity ratio, and the user can freely adjust the fragrance release rate according to their preference for the fragrance concentration to create an odor environment that meets personal preferences.

[0099] In some embodiments, if the current environmental type is a fragrance gas environment, there is a negative correlation between the current gas intensity and the fragrance release rate, that is, the greater the current gas intensity, the smaller the fragrance release rate.

[0100] Optionally, the negative correlation between the current gas intensity and the fragrance release rate is characterized by formula (8):

[0101]

[0102] In formula (8), e(t) is the error signal, which is obtained by calculating the current gas intensity and the preset fragrance threshold, K p is the preset proportional coefficient, K i is the preset integral coefficient, K d is the preset differential coefficient.

[0103] In some embodiments, if the current environmental type is an aroma gas environment, a PID controller is used to control the aroma release rate so that the current gas intensity of the aroma gas is always within the ideal range [T3, T4]; if I(t) ≤ T3, the error signal e(t) = T3 - I(t), and the PID controller uses the error signal as a reference. The lower the current gas intensity, the higher the aroma release rate, increasing the smell intensity inside the vehicle; similarly, if I(t) ≥ T4, the error signal e(t) = I(t) - T4, and the PID controller uses the error signal as a reference. The higher the current gas intensity, the lower the aroma release rate; in this way, the dynamic balance of the aroma gas in the aroma gas environment is achieved through the PID controller, providing a comfortable in-vehicle environment for users.

[0104] In some embodiments, if the current environmental type is an aroma gas environment, the currently detected current gas intensity is compared with a safety intensity threshold; once the current gas intensity is greater than or equal to the safety intensity threshold, the aroma release rate is reduced, the aroma device is paused, or the aroma device is turned off. At the same time, the user is reminded not to expose themselves to an environment exceeding the safety intensity threshold, thereby preventing the gas intensity of the aroma gas from exceeding the safety intensity threshold for a long time and ensuring user health.

[0105] Combined Figure 6 As shown, the present application provides an aroma device control method, including:

[0106] Step S601, obtaining the current environmental type and the current gas intensity;

[0107] Step S602, determining whether the current environmental type is an abnormal gas environment. If so, jump to step S603; if not, jump to step S606;

[0108] Step S603, determining whether the current gas intensity is greater than or equal to an aroma trigger threshold. If so, jump to step S604; if not, jump to step S602;

[0109] Step S604, turning on the aroma device;

[0110] Step S605, obtaining the positive correlation between the current gas intensity and the aroma release rate to match the aroma release rate corresponding to the current gas intensity according to the positive correlation.

[0111] Step S606, obtaining the negative correlation between the current gas intensity and the aroma release rate to match the aroma release rate corresponding to the current gas intensity according to the negative correlation;

[0112] Step S607, determining whether the current gas intensity is greater than or equal to the safety intensity threshold. If so, jump to step S608; if not, jump to step S606;

[0113] Step S608, turn off the fragrance device.

[0114] Optionally, if the environmental conditioning device includes an air conditioning device, generate a device control instruction according to the current environmental type and the current gas intensity, including at least one of the following: if the current environmental type is an abnormal gas environment and the current gas intensity is greater than or equal to the preset external circulation trigger threshold, control the air conditioning device to enter the external circulation mode; if the current environmental type is an abnormal gas environment and the current gas intensity is greater than or equal to the external circulation trigger threshold, determine the air conditioning wind speed according to the current gas intensity, and control the air conditioning device according to the air conditioning wind speed, wherein there is a positive correlation between the current gas intensity and the air conditioning wind speed; if the current environmental type is an abnormal gas environment and the current gas intensity is less than the external circulation trigger threshold, control the air conditioning device to enter the internal circulation mode; if the current environmental type is a fragrance gas environment and the current gas intensity is greater than or equal to the preset safety intensity threshold, control the air conditioning device to enter the external circulation mode.

[0115] In some embodiments, when the user enters a vehicle that has been exposed to the sun for a long time in summer, the temperature inside the cockpit rises, causing the interior materials to accelerate the release of volatile organic compounds. The odor sensor detects that the concentration of volatile organic compounds reaches 3.0 mg / m 3 , and the preset external circulation trigger threshold is 2.5 mg / m 3 , then switch the air conditioner to the external circulation mode to introduce external fresh air, and at the same time adjust the wind speed to the highest gear according to the linear relationship between the gas intensity and the wind speed; after 10 minutes, when the concentration of volatile organic compounds drops to 1.8 mg / m 3 , automatically close the external circulation and start the internal circulation mode to cooperate with the activated carbon filter element for continuous purification; if the user turns on the fragrance system during driving and the concentration sensor detects that the fragrance molecule intensity exceeds the safety threshold, the system will forcefully switch to the external circulation mode to dilute the fragrance and avoid discomfort caused by too strong an odor to the passengers.

[0116] Combined with Figure 7 shown, the present application provides a method for controlling an air conditioning device, including:

[0117] Step S701, obtain the current environmental type and the current gas intensity;

[0118] Step S702, determine whether the current environmental type is an abnormal gas environment. If so, jump to step S703; if not, jump to step S706;

[0119] Step S703, determine whether the current gas intensity is greater than or equal to the external circulation trigger threshold. If so, jump to step S704; if not, jump to step S705;

[0120] Step S704, control the air conditioning device to enter the external circulation mode and determine the air conditioning wind speed according to the current gas intensity;

[0121] Among them, there is a positive correlation between the current gas intensity and the air conditioner wind speed;

[0122] Step S705, control the air conditioning equipment to enter the internal circulation mode.

[0123] Step S706, determine whether the current gas intensity is greater than or equal to the safety intensity threshold. If so, jump to step S704. If not, jump to step S705.

[0124] Combined with Figure 8 As shown, the present application provides an environmental regulation system for a vehicle cockpit, including a detection module 801, a calculation module 802, a classification module 803, and an adjustment module 804.

[0125] The detection module 801 is configured to obtain a gas detection signal by performing gas detection on the vehicle cockpit.

[0126] The calculation module 802 is configured to calculate based on the gas detection signal to obtain the current gas intensity, and convert the gas detection signal from the time domain to the frequency domain to obtain the gas frequency domain characteristics.

[0127] The classification module 803 is configured to splice according to the current gas intensity and the gas frequency domain characteristics to obtain the current gas characteristics, and classify the current gas characteristics to obtain the current environmental type.

[0128] The adjustment module 804 is configured to generate a device control instruction according to the current environmental type and the current gas intensity, so as to control the environmental regulation device in the vehicle cockpit according to the device control instruction.

[0129] By using the environmental regulation system for a vehicle cockpit provided by the present application, the current gas intensity and the gas frequency domain characteristics are extracted from the gas detection signal of the vehicle cockpit, and the current gas intensity and the gas frequency domain characteristics are used as the current gas characteristics for classification to obtain the current environmental type, so as to generate a device control instruction for controlling the environmental regulation device according to the current environmental type and the current gas intensity. In this way, not only the current gas intensity is calculated through the gas detection signal, but also the current environmental type is obtained by classifying the current gas characteristics. Combining the current environmental type and the current gas intensity as the control basis, the fine-grained adjustment of the vehicle cockpit odor is realized through the dynamic control of the environmental regulation device, thereby improving the control efficiency of the environmental regulation device.

[0130] The present application also provides a vehicle terminal, including: a processor and a memory; the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory so that the vehicle terminal executes the above method.

[0131] Figure 9The structural schematic diagram of a computer system of a vehicle terminal suitable for implementing the embodiments of the present application is shown. It should be noted that Figure 9 The shown computer system 900 of the vehicle terminal is only an example, and should not impose any limitation on the functions and usage scope of the embodiments of the present application.

[0132] As Figure 9 shown, the computer system 900 includes a central processing unit (CPU) 901, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 902 or the program loaded from the storage section 908 into the random access memory (RAM) 903, such as executing the methods in the above embodiments. In the RAM 903, various programs and data required for system operation are also stored. The CPU 901, ROM 902, and RAM 903 are connected to each other via a bus 904. The input / output (I / O) interface 905 is also connected to the bus 904.

[0133] The following components are connected to the I / O interface 905: an input section 906 including a keyboard, a mouse, etc.; an output section 907 including such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, etc.; a storage section 908 including a hard disk, etc.; and a communication section 909 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 909 performs communication processing via a network such as the Internet. The drive 910 is also connected to the I / O interface 905 as required. A removable medium 911, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 910 as required, so that the computer program read from it can be installed into the storage section 908 as required.

[0134] The vehicle terminal disclosed in this embodiment includes a processor, a memory, a transceiver, and a communication interface. The memory and the communication interface are connected to the processor and the transceiver and complete communication with each other. The memory is used to store computer programs, the communication interface is used for communication, and the processor and the transceiver are used to run the computer programs to enable the vehicle terminal to execute each step of the above method.

[0135] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and sub-samples of some embodiments may be included in or replace parts and sub-samples of other embodiments. Moreover, the terms used in this application are only for describing embodiments and do not limit the claims. As used in the description of embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to also include the plural forms. Similarly, as used in this application, the term "and / or" refers to any and all possible combinations including one or more of the associated listed items. Additionally, when used in this application, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated sub-samples, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other sub-samples, wholes, steps, operations, elements, components, and / or groupings of these. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, or apparatus comprising the element. In this document, what each embodiment focuses on may be the differences from other embodiments, and the same or similar parts among the embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method parts disclosed in the embodiments, the relevant parts may refer to the description of the method parts.

[0136] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner may depend on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods for each specific application to achieve the described functions, but such implementation should not be considered to exceed the scope of this application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0137] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units can be merely a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some sub-samples can be ignored or not executed. Additionally, the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. Additionally, in this application, the various functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0138] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of the systems, methods, and computer program products according to the present application. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the blocks can occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can also be executed in the reverse order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks can also occur in a different order than that disclosed in the description. Sometimes, there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can also be executed in the reverse order, which can depend on the functions involved. Each block in the block diagram and / or flowchart, as well as the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for adjusting the environment of a vehicle cabin, characterized in that: include: By performing gas detection on the vehicle cabin, a gas detection signal is obtained; Calculate the gas detection signal to obtain the current gas intensity, and convert the gas detection signal from the time domain to the frequency domain to obtain the gas frequency domain characteristics; The current gas intensity and the gas frequency domain characteristics are combined to obtain the current gas characteristics, and the current environment type is obtained by classifying the current gas characteristics; A device control instruction is generated according to the current environment type and the current gas intensity, so as to control the environment conditioning device in the vehicle cabin according to the device control instruction.

2. The method according to claim 1, characterized in that By performing gas detection on the vehicle cabin, a gas detection signal is obtained, including: Performing gas detection on the vehicle cabin by using a gas sensor preset in the vehicle cabin to obtain an initial detection signal corresponding to a preset time window; The initial detection signal is filtered according to the window size of the preset time window to obtain a gas detection signal.

3. The method according to claim 1, characterized in that The current gas characteristics are obtained by combining the current gas intensity and the gas frequency domain characteristics, including: Collecting cabin environment data of the vehicle cabin in a preset time window, wherein the cabin environment data includes at least one of ambient temperature, ambient humidity, ambient air pressure and gas diffusion rate; The current gas characteristics are obtained by splicing the current gas intensity, the gas frequency domain characteristics, and the cabin environment data.

4. The method according to claim 1, characterized in that The method further comprises: Obtaining a vehicle travel speed corresponding to a preset time window, and performing calculations based on the cabin environment data and the preset time window to obtain a data change rate corresponding to the cabin environment data; Determining a gas detection frequency according to the data change rate and the vehicle travel speed, wherein the gas detection frequency is positively correlated with the data change rate, and the gas detection frequency is positively correlated with the vehicle travel speed; The vehicle cabin is subjected to gas detection according to the gas detection frequency.

5. The method according to claim 1, characterized in that By classifying the current gas characteristics, the current environment type is obtained, including: The preset classification model is trained using gas feature samples with environment type labels, and the classification model after model training is used as the gas classification model; The current gas feature is input into the gas classification model, and the current environment type output by the gas classification model is obtained.

6. The method according to any one of claims 1 to 5, characterized in that: If the environment adjustment device includes a fragrance device, generating a device control instruction according to the current environment type and the current gas intensity includes at least one of the following: If the current environment type is an abnormal gas environment, and the current gas intensity is greater than or equal to a preset fragrance trigger threshold, turning on the fragrance device; If the current environment type is an abnormal gas environment, a positive correlation between the current gas intensity and the fragrance release rate is obtained, so as to match the fragrance release rate corresponding to the current gas intensity according to the positive correlation, and control the fragrance device according to the fragrance release rate; If the current environment type is a fragrance gas environment, a negative correlation between the current gas intensity and the fragrance release rate is obtained, so as to match the fragrance release rate corresponding to the current gas intensity according to the negative correlation, and control the fragrance device according to the fragrance release rate; If the current environment type is a fragrance gas environment and the current gas intensity is greater than or equal to a preset safety intensity threshold, the fragrance device is turned off.

7. The method according to claim 6, characterized in that The negative correlation between the current gas intensity and the fragrance release rate is characterized by the following formula: Wherein, e(t) is the error signal, which is obtained by calculating the current gas intensity and the preset fragrance threshold, K p is the preset proportionality factor, K i is the preset integral coefficient, K d is the preset differential coefficient.

8. The method according to any one of claims 1 to 5, characterized in that: If the environment conditioning device includes an air conditioning device, generating a device control instruction according to the current environment type and the current gas intensity includes at least one of the following: If the current environment type is an abnormal gas environment, and the current gas intensity is greater than or equal to a preset external circulation triggering threshold, controlling the air conditioning device to enter an external circulation mode; If the current environment type is an abnormal gas environment, and the current gas intensity is greater than or equal to the external circulation trigger threshold, the air conditioning wind speed is determined according to the current gas intensity, and the air conditioning equipment is controlled according to the air conditioning wind speed, wherein the current gas intensity and the air conditioning wind speed are positively correlated; If the current environment type is an abnormal gas environment and the current gas intensity is less than the external circulation triggering threshold, controlling the air conditioning device to enter the internal circulation mode; If the current environment type is a fragrance gas environment, and the current gas intensity is greater than or equal to a preset safety intensity threshold, the air-conditioning device is controlled to enter an external circulation mode.

9. An environmental conditioning system for a vehicle cabin, characterized in that: include: The detection module is configured to obtain a gas detection signal by performing gas detection on the vehicle cabin; a calculation module configured to perform calculations according to the gas detection signal to obtain a current gas intensity, and convert the gas detection signal from a time domain to a frequency domain to obtain a gas frequency domain characteristic; A classification module is configured to obtain a current gas feature by combining the current gas intensity and the gas frequency domain characteristics, and obtain a current environment type by classifying the current gas feature; The regulating module is configured to generate a device control instruction according to the current environment type and the current gas intensity, so as to control the environment regulating device in the vehicle cabin according to the device control instruction.

10. A vehicle terminal, characterized in that: include: Processor and memory; The memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the vehicle terminal executes the method according to any one of claims 1 to 8.

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