A control method, system, medium and processor for a vehicle-mounted fragrance device

Abstract

The present application provides a control method for an in-vehicle fragrance device, which is used to control an aromatherapy device loaded with several kinds of scented essential oils, wherein the aromatherapy device is connected to an in-vehicle control system; the method comprises the following steps: before the aromatherapy device releases the scent, the facial expressions of the people in the vehicle are collected by an in-vehicle internal camera, and the emotional state of each person before the release of the scent is determined based on the facial expression analysis; the aromatherapy device is controlled to release and switch scents in a preset sequence, and after each scent is switched, the facial expressions of the people in the vehicle are collected by the in-vehicle internal camera; the emotional changes of each person are determined based on the facial expression analysis, and the number of people whose emotions have deteriorated corresponding to each scent is recorded; and the scent with the smallest number of people whose emotions have deteriorated is selected as the scent released by the aromatherapy device. The present application scheme can make intelligent and humanized selections of scents from the perspectives of safety and personal health, thereby improving driving and personal safety.

Description

Technical Field

[0001] The present invention relates to the technical field of fragrance device control, and in particular to a control method, system, medium and processor for a vehicle-mounted fragrance device. Background Art

[0002] A car fragrance device is an automotive accessory that can improve the air quality inside the car and create a comfortable driving environment. It has the functions of improving the odor inside the car, relieving driving fatigue and improving the quality of the car interior.

[0003] Currently, traditional in-car fragrance devices include traditional car perfumes and solid perfumes. Traditional car perfumes are typically liquid perfumes in glass or plastic bottles, which are released into the air using a diffuser stick, cotton wick, or other device. They come in a variety of shapes, from classic square and round bottles to creative cartoon characters, and can be used as interior decoration. To use, simply place them in the car's cup holder, dashboard, or other locations, but high temperatures may pose a safety hazard. Solid perfumes, on the other hand, are typically packaged in cans or boxes and are made by mixing fragrances with wax, resin, and other materials. Their fragrance release is relatively slow and long-lasting, eliminating the risk of liquid leakage. They are highly safe and suitable for all car models and seasons. Commonly found are small round and square boxes that can be placed in door storage compartments, armrests, and other locations.

[0004] With the development of in-vehicle intelligent technology, in-vehicle fragrance devices have begun to develop into in-vehicle aromatherapy machines and intelligent in-vehicle fragrance systems. In-vehicle aromatherapy machines use technologies such as ultrasonic vibration and microporous atomization to atomize essential oils or perfumes into tiny particles, which are evenly distributed into the air inside the vehicle, better maintaining the purity and longevity of the fragrance. The latest intelligent in-vehicle fragrance systems are the original fragrance systems equipped with some high-end models. They can be integrated with the vehicle's air conditioning system and automatically adjust the fragrance concentration and distribution mode based on environmental factors such as temperature, humidity, and air quality in the vehicle, as well as user settings. However, the current selection of fragrance in intelligent in-vehicle fragrance systems or some mobile in-vehicle intelligent aromatherapy machines is mostly based on manual selection based on the preferences of a single person (such as the driver himself), resulting in a low level of intelligence and humanization.

[0005] In view of this, a control method, system, medium and processor for a vehicle-mounted fragrance device are needed. Summary of the Invention

[0006] To address the low level of intelligence and personalization in the fragrance release of in-vehicle fragrance devices in the prior art, the present invention provides a control method, system, medium, and processor for an in-vehicle fragrance device. These control methods enable intelligent and personal selection of fragrances from the perspectives of safety, personal harmony, and physical health, thereby enhancing driving and personal safety. The specific technical solution is as follows:

[0007] A method for controlling a vehicle-mounted fragrance device, for controlling an fragrance device loaded with a plurality of essential oils, wherein the fragrance device is connected to a vehicle-mounted control system; the method comprises the following steps:

[0008] Before the aromatherapy device releases the fragrance, it collects the facial expressions of the people in the car through the internal camera of the car, and judges the emotional state of each person before releasing the fragrance based on the facial expression analysis;

[0009] The aromatherapy device is controlled to release and switch scents in a preset sequence. After each scent switch, the facial expressions of the people in the car are collected through the onboard internal camera.

[0010] Analyze people's emotions based on facial expressions and record the number of people whose emotions deteriorate in response to each scent.

[0011] The fragrance that causes the smallest number of people to have bad moods is selected as the fragrance released by the aromatherapy device.

[0012] Furthermore, the method further includes the following steps:

[0013] If there are children in the car, first select the fragrance that will not make children's moods worse as the fragrance released by the aromatherapy device; if there are multiple fragrances that will not make children's moods worse, then select the fragrance that will cause the least number of people to be in a bad mood as the fragrance released by the aromatherapy device to avoid children making too much noise and affecting driving safety.

[0014] Furthermore, the method further includes the following steps:

[0015] If there are elderly people in the car, the fragrance that can keep the elderly in a good mood should be given priority as the fragrance released by the aromatherapy device; if there are multiple fragrances that can keep the elderly in a good mood, the fragrance that can keep children in a good mood and the number of people with bad moods should be selected as the fragrance released by the aromatherapy device in the order of priority, so as to avoid irritating the elderly's body and affecting their physical health and safety.

[0016] Furthermore, the method further includes the following steps:

[0017] The driver's facial expressions are collected through the internal camera of the vehicle to determine whether the driver is in a state of fatigue driving; if the driver is in a state of fatigue driving, the aromatherapy device is controlled to release a refreshing fragrance for the driver.

[0018] Furthermore, the method further includes the following steps:

[0019] If the driver likes several refreshing fragrances, the aromatherapy device is controlled to switch cyclically among the several refreshing fragrances in sequence.

[0020] Furthermore, the method further includes the following steps:

[0021] The aromatherapy device is controlled to cyclically switch between the driver's refreshing fragrance and the common efficacy fragrance.

[0022] Furthermore, the method further includes the following steps:

[0023] While controlling the aromatherapy device to release refreshing fragrance for the driver, the car air conditioner is controlled to lower the temperature and play lively music.

[0024] A control system for a vehicle-mounted fragrance device, applied to the control method for the vehicle-mounted fragrance device described above, comprises:

[0025] The first judgment module is used to collect the facial expressions of people in the car through the on-board internal camera before the aromatherapy device releases the fragrance, and judge the emotional state of each person before releasing the fragrance based on the facial expression analysis;

[0026] The second judgment module is used to control the aromatherapy device to release and switch scents in a preset order, and collect the facial expressions of the people in the car through the internal camera after each scent switch;

[0027] The recording module is used to judge the emotional changes of each person based on facial expression analysis and record the number of people whose emotions have changed for each fragrance;

[0028] The selection module is used to select the fragrance with the smallest number of people whose moods have deteriorated as the fragrance released by the aromatherapy device.

[0029] A computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the control method of the vehicle-mounted fragrance device described above.

[0030] A processor is used to run a program, wherein the program executes the control method of the vehicle-mounted fragrance device described above when running.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. From the perspective of safety and personal health, it can make intelligent and humanized selections of fragrances to improve driving and personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0034] Figure 1 1 is a flow chart of a control method for a vehicle-mounted fragrance device;

[0035] Figure 2 The figure is a structural diagram of a control system of a vehicle-mounted fragrance device. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0038] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0039] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0040] Example 1

[0041] like Figure 1 The figure shows a flow chart of a control method for an in-vehicle fragrance device. The solution of the present application can be used to control an aromatherapy device loaded with several kinds of essential oils, which can be connected to the vehicle control system via a wireless method such as Bluetooth; or an original intelligent in-vehicle fragrance system with several kinds of essential oils (such as the intelligent fragrance system of the Geely Xingrui Premium and Flagship models and the BYD Han Qianshan Cui Edition). The method includes the following steps:

[0042] S1: Before the aromatherapy device releases fragrance, the facial expressions of the people in the car are collected through the internal camera of the car, and the emotional state of each person before the fragrance is released is judged based on the facial expression analysis.

[0043] Furthermore, the facial expressions of the people in the car are collected by the vehicle internal camera, and the emotional state of each person before releasing the fragrance is determined based on the facial expression analysis. This step is completed by the vehicle intelligent control system and includes the following steps:

[0044] S11: Image Acquisition. Select a high-definition, wide-angle vehicle camera to ensure clear capture of facial details from various locations within the vehicle. Typically, the camera can be mounted near the rearview mirror, above the center of the windshield, or above the dashboard. This ensures a good viewing angle without obstructing the driver's line of sight. Driver monitoring system cameras are often installed in such locations.

[0045] S12: Image preprocessing. Due to the complex and variable lighting conditions inside a vehicle, the captured images require illumination balancing and denoising. For example, after grayscale conversion, the grayscale mean is calculated to determine the illumination balancing function. Initial illumination balancing and histogram equalization are then performed on the image to enhance image detail and mitigate the effects of illumination. Then, pose correction is performed on facial images from different angles, converting them to standard angles. Obstructions such as sunglasses and hats are removed to improve the accuracy of subsequent expression recognition.

[0046] S13: Expression Feature Extraction. Using facial recognition technology, we accurately locate the position and contours of key facial features, such as eyebrows, eyes, mouth, and nose, to more accurately analyze their morphological changes. We select several feature points around key features, such as the corners of the eyes, mouth, and nose wings. By tracking the movement and position changes of these feature points, we capture subtle changes in facial expression. Based on the position and movement information of these feature points, we calculate relevant expression parameters, such as the angle of the eyebrows, the degree of eye opening, and the size of the mouth, providing a quantitative basis for determining emotional state.

[0047] S14: Emotional State Analysis. Based on research findings from psychology and cognitive science, this model establishes a correspondence between different emotional states and facial expression features. For example, a smile, raised eyebrows, and bright eyes typically indicate joy, while a frown, squinting, and a drooped mouth may indicate dissatisfaction or anger.

[0048] S15: Pattern matching and classification. The extracted facial expression features are matched and classified with predefined emotion models. Through machine learning or deep learning algorithms such as support vector machines and convolutional neural networks, the emotional state of the occupants of the vehicle is automatically identified and judged.

[0049] S16: Furthermore, in addition to facial expressions, other information such as the ambient temperature, humidity, and noise level in the vehicle, as well as the person's body language and voice tone, can be combined for comprehensive analysis to more accurately determine their emotional state.

[0050] Furthermore, the fragrances of the several kinds of essential oils include the following:

[0051] Mint fragrance: The refreshing and invigorating scent of mint can help drivers stay alert and focus while driving, making it particularly suitable for long-distance driving. When people feel sleepy or the air in the car is stuffy, the refreshing scent of mint aromatherapy can effectively stimulate the nerves, making people feel refreshed and comfortable, and relieving fatigue and stress.

[0052] Lemon scent: The fresh and natural lemon aroma gives people a sense of vitality and can make the car full of life. This fresh scent can effectively neutralize odors in the car, such as leather and cigarette smells, creating a pleasant driving environment, making people feel happy and reducing driving fatigue.

[0053] The scent of orange blossom is elegant and soft, with a hint of sweet citrus fruit. It can soothe emotions, relax the body and mind, bring a quiet and pleasant driving experience, and help relieve tension during driving.

[0054] Eucalyptus fragrance, the smell of eucalyptus has a unique cool feeling and herbal flavor, which can kill bacteria and purify the air. It can also refresh the mind, enhance concentration, keep the air in the car fresh, and create a comfortable and healthy driving space for the driver.

[0055] Lavender scent, the fragrance of lavender has the effect of soothing nerves and helping sleep. It can help car owners relax their body and mind while driving, reduce stress and anxiety. It is especially suitable for daily commuting or long-distance driving. It can make the driver maintain a calm state of mind and improve driving comfort.

[0056] S2: Control the aromatherapy device to release and switch scents in a preset sequence. After each scent switch, the vehicle's internal camera captures the facial expressions of the people in the vehicle.

[0057] Furthermore, the time intervals for switching scents are as follows:

[0058] Solid Balm

[0059] Natural evaporation: Solid perfume slowly releases fragrance at room temperature through its own molecular motion. If placed in a well-ventilated area in the car, such as near an air-conditioning vent, it will generally take about 10-20 minutes for a small space in the car to have a noticeable fragrance. It usually takes about 30 minutes to 1 hour for it to diffuse throughout the entire car.

[0060] With the help of external forces: If you turn on the air conditioner in the car, use the air conditioning to accelerate the diffusion of the fragrance of the ointment, the time will be shortened, and it will take about 15-25 minutes for the entire car to be filled with fragrance.

[0061] Liquid perfume

[0062] Volatile stick type: Liquid perfume is used with a vaporizer stick, and the evaporation speed is relatively fast. At normal temperature, it takes about 15-25 minutes after opening to make the fragrance in the car space noticeable. If you want the fragrance to fill the entire car, it usually takes about 30 minutes to 1.5 hours.

[0063] Heating type: Liquid aromatherapy that is heated by a power source such as a cigarette lighter to accelerate its volatilization. The fragrance is released faster. Usually, a strong fragrance can be smelled in the car 5-10 minutes after it is turned on, and it can spread to all places in the car in about 15-20 minutes.

[0064] Aerosol car aromatherapy

[0065] Aerosol car diffusers have a strong and fast-evaporating fragrance, but they require a power source. Pressing the spray button quickly spreads the fragrance throughout the car, typically taking 2-5 minutes to fill every corner.

[0066] Car aromatherapy machine

[0067] Car aromatherapy diffusers typically use atomization technology to atomize the aromatherapy liquid into tiny particles that diffuse evenly throughout the vehicle's air. Generally, it takes 3-8 minutes for the aroma to form a distinct atmosphere within the vehicle, and 10-15 minutes for the fragrance to permeate the entire vehicle.

[0068] Smart car fragrance system

[0069] Some high-end models are equipped with intelligent car fragrance systems, such as the fragrance system of Zeekr 001. The standard version can usually smell the fragrance in the car within a few minutes after the system is turned on, while the optional version may take about ten minutes; BMW's fragrance system will release fragrance in a pulsed manner every 90 seconds to 5 minutes. The fan installed in the fragrance unit allows air to pass through the fragrance box and enter the car interior. Generally speaking, the car can be filled with fragrance about 5-10 minutes after it is turned on.

[0070] Therefore, the aerosol-type car-mounted aromatherapy used in this embodiment adopts atomization and volatilization technology, so the time interval is 3 to 5 minutes, preferably 3 minutes.

[0071] S3: Analyze the emotional changes of each person based on facial expressions, and record the number of people whose emotions deteriorate for each fragrance.

[0072] Furthermore, the mood changes of each person include changes from good mood to bad mood, changes from bad mood to good mood, good mood remaining unchanged and bad mood remaining unchanged. The specific mood analysis and judgment method is as described above, or other methods that have the same effect can be used.

[0073] Furthermore, the recording of the number of people whose mood has turned bad corresponding to each fragrance means first recording the number of people with bad moods before the previous fragrance or the release of the fragrance, and then recording the number of people with bad moods after the release of the current fragrance, and subtracting the previous and the next numbers to get the number of people whose mood has turned bad corresponding to the current fragrance. Furthermore, the number of people whose mood has turned bad may be a positive value or a negative value. When it is a positive value, it means that the number of people with bad moods has increased, and the fragrance has not played a role in improving the overall mood of the people. When it is a negative value, it means that the number of people with bad moods has decreased, and the fragrance has played a role in improving the overall mood of the people; the larger the absolute value of the negative value, the smaller the number of people with bad moods, the better the overall improvement effect, and the more worthy it is to choose this kind of fragrance to release.

[0074] Furthermore, if a person's mood becomes bad when a certain fragrance is released, it means that the person does not like the fragrance.

[0075] Furthermore, if the mood of a certain person becomes better when a certain fragrance is released, it means that the person likes the fragrance.

[0076] Furthermore, if the person's original mood is bad, but his mood remains unchanged when a certain fragrance is released, it is determined that the person does not like the fragrance.

[0077] Furthermore, if the person's original mood is good and his mood remains unchanged when a certain fragrance is released, it is determined that the person likes the fragrance.

[0078] S4: Select the fragrance that causes the smallest number of people to have a bad mood as the fragrance released by the aromatherapy device. The number of people whose moods have bad is used as the judgment indicator, rather than the number of people in a bad mood. The change brought about by the smell is used as the judgment indicator to prevent people from being affected by other factors and misjudging the effect of the smell (for example, people's moods change due to other things, this application solution can eliminate such situations).

[0079] This application plan can make intelligent and humanized selections of fragrances from the perspective of promoting overall harmony, safety and physical health of people on the vehicle, thereby improving the aromatherapy experience, driving and personal safety.

[0080] In specific implementation, this solution also includes the following steps:

[0081] If there are children in the car, the aromatherapy device will first select a scent that will not make children feel bad. If there are multiple scents that will not make children feel bad, the scent that causes the least number of people to feel bad will be selected as the scent released by the aromatherapy device to prevent children from making too much noise and affecting driving safety. Furthermore, the aromatherapy device will select a scent that children like as the scent released.

[0082] In specific implementation, this solution also includes the following steps:

[0083] If there are elderly people in the car, the fragrance that can keep the elderly people's mood from getting worse (i.e., from a bad mood to a good mood, or keep a good mood) is given priority as the fragrance released by the aromatherapy device; if there are multiple fragrances that can keep the elderly people's mood from getting worse, the fragrance that can keep children's mood from getting worse (i.e., from a bad mood to a good mood, or keep a good mood) and the number of people with bad moods are the least are selected as the fragrance released by the aromatherapy device, so as to avoid irritating the elderly's body and affecting their physical health and safety, and give priority to ensuring the safety of all people.

[0084] In specific implementation, this solution also includes the following steps:

[0085] The driver's facial expressions are collected through the internal camera of the vehicle to determine whether the driver is in a state of fatigue driving; if the driver is in a state of fatigue driving, the aromatherapy device is controlled to release a refreshing fragrance for the driver. The driver's refreshing fragrance is set to a fragrance that changes from a good mood to a bad mood when the fragrance is switched, so as to stimulate the driver and help the driver to refresh himself.

[0086] Furthermore, the driver's refreshing fragrance is recorded based on the driver's facial expression changes during the above-mentioned fragrance change and emotion detection steps. Furthermore, based on the facial expression changes, whether the fragrance has a refreshing effect on the driver can be judged from the following aspects.

[0087] Observe eye features

[0088] Using image recognition technology, the ratio of the distance between the upper and lower eyelids to the longitudinal length of the entire eye when the eyes are open (commonly known as eye opening) is measured. In the alert state, the eye opening is generally larger. For example, when normally relaxed, the eye opening may be around 0.2-0.3, while in the alert state, this ratio may increase to 0.4 or even higher, and the eyes are obviously widened and appear bright and energetic. By tracking the movement trajectory of the eyeballs in the eye sockets (some professional image analysis software has this function), if the eyeballs can flexibly turn left and right, up and down, and the frequency and amplitude of the rotation are normal, it often means that the brain is active and the person is awake and alert. For example, compared with the situation when the eyeballs are relatively dull, turn slowly and with a small amplitude when sleepy, the eyeballs in the alert state can quickly respond to changes in the field of vision and perform flexible visual tracking.

[0089] Pay attention to eyebrow shape

[0090] Image software is used to measure the vertical displacement of the ends and middle of the eyebrows compared to their normal resting state. When people are alert, their eyebrows tend to rise unconsciously. For example, the brows and the tips of the eyebrows may rise several millimeters or more compared to normal, and the overall brow shape appears more stretched and raised than usual, indicating that the nervous system is in a state of excitement and alertness. The presence of skin wrinkles between the eyebrows and the depth of the wrinkles are analyzed. When people are stimulated and enter a state of alertness, they sometimes frown slightly, forming certain frown lines. This is also an outward manifestation of the brain's response to the stimulus and nervous tension. The depth and length of the wrinkles can be quantified using image analysis software.

[0091] Pay attention to the shape of the mouth

[0092] Image Analysis: Determines whether the person's mouth is open or closed in the image, and how tightly it is closed. Generally, when alert, the mouth is naturally closed or slightly pursed, with the lips relatively close together. However, when sleepy, the mouth may unconsciously open slightly, with the jaw relaxed, as if yawning were the prelude. This state of the mouth is determined by analyzing features such as the lip contour. Changes in the angle of the mouth corners are detected. When alert, the corners of the mouth may rise slightly, presenting a relatively positive and energetic expression, rather than the relaxed, drooping appearance seen when sleepy. Image analysis software can accurately measure the angle change of the mouth corners to aid in this assessment.

[0093] In addition to analyzing the facial features of each of the aforementioned parts individually, the overall facial expression must also be considered. For example, a person in a state of alertness will have relatively tight facial muscles, not appearing loose or languid. Their facial contours will also appear clearer, giving them an overall impression of being refreshed and focused. By analyzing the texture and firmness of the facial muscles in the image (using features like texture analysis in image analysis software), combined with the appearance of the eyes, eyebrows, mouth, and other parts of the face, a more accurate assessment of whether a person is in an alert state can be made.

[0094] In specific implementation, this solution also includes the following steps:

[0095] If the driver likes several refreshing scents, the aromatherapy device is controlled to switch among the several refreshing scents in sequence to prevent the driver from experiencing olfactory fatigue, maintain a cyclic stimulation of the driver, prevent the driver from returning to a state of fatigued driving, and keep the driver alert.

[0096] In specific implementation, this solution may further include the following steps:

[0097] The aromatherapy device is controlled to switch in a cycle between refreshing fragrance for the driver and ordinary fragrance. This is also to prevent the driver from experiencing olfactory fatigue, maintain a cyclic stimulation of the driver, prevent the driver from returning to a state of fatigue driving, and keep the driver alert. Wind oil can also be added to the refreshing fragrance to participate in the cycle to stimulate the driver's refreshment, so as to increase the refreshing effect.

[0098] Furthermore, the method further includes the following steps:

[0099] The aromatherapy device releases a refreshing scent for the driver, while the car's air conditioner is controlled to lower the temperature and play upbeat music. This automated coordination uses smell, body sensation, and hearing to help the driver wake up. Furthermore, each time a song changes, a new scent changes, cycling through these multiple dimensions to enhance the refreshing effect.

[0100] Furthermore, in terms of temperature control, when lowering the temperature inside the car to create a cool environment, the effect is even better when combined with olfactory products that have a refreshing effect. For example, setting the air conditioning temperature to a refreshingly cool 20°C while letting the refreshing scent of mint diffusers fill the car can effectively stimulate the brain and keep people alert.

[0101] Furthermore, listen to music with a strong sense of rhythm: such as some rock and pop music with a bright rhythm, such as Mayday's "Leaving the Surface of the Earth" and Phoenix Legend's "The Most Dazzling National Style". The passionate rhythm can lift your spirits, but be careful to keep the volume moderate to avoid being distracted by driving due to being too immersed in the music.

[0102] Listen to audiobooks or crosstalk: Play some humorous crosstalk or interesting audiobooks, and drive away sleepiness by focusing on the content.

[0103] Furthermore, the system can select an appropriate fragrance release strategy based on the emotional state of the occupants. For example, if the occupants are generally nervous or anxious, soothing scents such as lavender and chamomile can be released. If the atmosphere inside the car is dull, refreshing scents such as lemon and mint can be released to improve the emotional experience of the occupants.

[0104] Example 2

[0105] like Figure 2 The figure shows a schematic diagram of the control system structure of a vehicle-mounted fragrance device, which is applied to the control method of the vehicle-mounted fragrance device described above, including:

[0106] The first judgment module is used to collect the facial expressions of people in the car through the on-board internal camera before the aromatherapy device releases the fragrance, and judge the emotional state of each person before releasing the fragrance based on the facial expression analysis;

[0107] The second judgment module is used to control the aromatherapy device to release and switch scents in a preset order, and collect the facial expressions of the people in the car through the internal camera after each scent switch;

[0108] The recording module is used to judge the emotional changes of each person based on facial expression analysis and record the number of people whose emotions have changed for each fragrance;

[0109] The selection module is used to select the fragrance with the smallest number of people whose moods have deteriorated as the fragrance released by the aromatherapy device.

[0110] Example 3

[0111] A computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the control method of the vehicle-mounted fragrance device described above.

[0112] Example 4

[0113] A processor is used to run a program, wherein the program executes the control method of the vehicle-mounted fragrance device described above when running.

[0114] The present application provides a control method for an in-vehicle fragrance device, which is used to control an aromatherapy device loaded with several kinds of scented essential oils, wherein the aromatherapy device is connected to an in-vehicle control system; the method comprises the following steps: before the aromatherapy device releases the scent, the facial expressions of the people in the vehicle are collected by an in-vehicle internal camera, and the emotional state of each person before the release of the scent is determined based on the facial expression analysis; the aromatherapy device is controlled to release and switch scents in a preset sequence, and after each scent is switched, the facial expressions of the people in the vehicle are collected by the in-vehicle internal camera; the emotional changes of each person are determined based on the facial expression analysis, and the number of people whose emotions have deteriorated corresponding to each scent is recorded; and the scent with the smallest number of people whose emotions have deteriorated is selected as the scent released by the aromatherapy device. The present application scheme can make intelligent and humanized selections of scents from the perspectives of safety and personal health, thereby improving driving and personal safety.

[0115] Those skilled in the art will appreciate that the units of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition of each example has been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0116] In the embodiments provided by the present invention, it should be understood that the division of units is merely a logical function division, and there may be other division methods in actual implementation, for example, multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored, etc.

[0117] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0118] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-0nly Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., various media that can store program code.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A method for controlling a vehicle-mounted fragrance device, characterized in that: Used to control an aromatherapy device loaded with several kinds of essential oils, wherein the aromatherapy device is connected to a vehicle-mounted control system; comprising the following steps: Before the aromatherapy device releases the fragrance, it collects the facial expressions of the people in the car through the internal camera of the car, and judges the emotional state of each person before releasing the fragrance based on the facial expression analysis; The aromatherapy device is controlled to release and switch scents in a preset sequence. After each scent switch, the facial expressions of the people in the car are collected through the onboard internal camera. Analyze people's emotions based on facial expressions and record the number of people whose emotions deteriorate in response to each scent. Select the scent that causes the least number of people to have bad moods as the scent released by the aromatherapy device; If there are children in the car, the fragrance that does not make children's moods worse is selected as the fragrance released by the aromatherapy device; if there are multiple fragrances that do not make children's moods worse, the fragrance that causes the least number of people to have bad moods is selected as the fragrance released by the aromatherapy device.

2. The control method of the vehicle-mounted fragrance device according to claim 1, characterized in that: The following steps are also included: If there are elderly people in the car, the fragrance that can keep the elderly in a good mood should be given priority as the fragrance released by the aromatherapy device; if there are multiple fragrances that can keep the elderly in a good mood, the fragrance that can keep children in a good mood and the number of people with bad moods should be selected as the fragrance released by the aromatherapy device in the order of priority, so as to avoid irritating the elderly's body and affecting their physical health and safety.

3. The control method of the vehicle-mounted fragrance device according to claim 1, characterized in that: The following steps are also included: The driver's facial expressions are collected through the internal camera of the vehicle to determine whether the driver is in a state of fatigue driving; if the driver is in a state of fatigue driving, the aromatherapy device is controlled to release a refreshing fragrance for the driver.

4. The control method of the vehicle-mounted fragrance device according to claim 3, characterized in that: The following steps are also included: If the driver likes several refreshing fragrances, the aromatherapy device is controlled to switch cyclically among the several refreshing fragrances in sequence.

5. The control method of the vehicle-mounted fragrance device according to claim 3, characterized in that: The following steps are also included: The aromatherapy device is controlled to cyclically switch between the driver's refreshing fragrance and the common efficacy fragrance.

6. The control method of the vehicle-mounted fragrance device according to claim 3, characterized in that: The following steps are also included: While controlling the aromatherapy device to release refreshing fragrance for the driver, the car air conditioner is controlled to lower the temperature and play lively music.

7. A control system for a vehicle-mounted fragrance device, characterized in that: include: The first judgment module is used to collect the facial expressions of people in the car through the on-board internal camera before the aromatherapy device releases the fragrance, and judge the emotional state of each person before releasing the fragrance based on the facial expression analysis; The second judgment module is used to control the aromatherapy device to release and switch scents in a preset order, and collect the facial expressions of the people in the car through the internal camera after each scent switch; The recording module is used to judge the emotional changes of each person based on facial expression analysis and record the number of people whose emotions have changed for each fragrance; a selection module for selecting a fragrance that minimizes the number of people whose moods have deteriorated as the fragrance released by the aromatherapy device; If there are children in the car, the fragrance that does not make children's moods worse is selected as the fragrance released by the aromatherapy device; if there are multiple fragrances that do not make children's moods worse, the fragrance that causes the least number of people to have bad moods is selected as the fragrance released by the aromatherapy device.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the control method of the vehicle-mounted fragrance device according to any one of claims 1 to 6.

9. A processor, characterized in that: The processor is configured to run a program, wherein the program, when running, executes the method for controlling the vehicle-mounted fragrance device according to any one of claims 1 to 6.

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