Control method and system of vehicle-mounted fragrance device, medium and processor

Abstract

The invention provides a control method of a vehicle-mounted fragrance device, which is used for controlling an aromatherapy device loaded with a plurality of fragrant essential oils, and the aromatherapy device is connected with a vehicle-mounted control system. Comprising the following steps: before an aromatherapy device releases fragrance, acquiring facial expressions of people in a vehicle through a vehicle-mounted internal camera, and analyzing and judging the emotional state of each person before the fragrance is released according to the facial expressions of the people; the aromatherapy device is controlled to release and switch fragrance according to a preset sequence, and the facial expression of the person in the vehicle is collected through a vehicle-mounted internal camera after each fragrance is switched; analyzing and judging emotional change of each person according to the facial expression, and recording the number of emotional deterioration persons corresponding to each fragrance; the fragrance with the minimum number of people worsening emotions is selected as the fragrance released by the aromatherapy device. According to the scheme, intelligent and humanized selection of fragrance can be carried out from the aspects of safety and body health of people, and the driving safety and the personal safety are improved.

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 of a vehicle-mounted fragrance device. Background Art

[0002] The car fragrance device is an auto part that can improve the air quality in the car and create a comfortable driving environment. It has the functions of improving the smell in the car, relieving driving fatigue and improving the grade of the car.

[0003] At present, traditional car fragrance devices include traditional car perfumes and solid perfumes. Traditional car perfumes are usually liquid perfumes in glass bottles or plastic bottles, which are released into the air through volatilization sticks, cotton cores, etc. There are various shapes, including classic square and round bottles, as well as creative cartoon images, which can be used as car decorations. When using, just place it in the cup holder, dashboard and other places in the car, but there may be safety hazards in high temperature environments. Solid perfumes are generally canned or boxed, and are made of spices mixed with wax, resin, etc. The fragrance is relatively slow and lasting, there is no need to worry about liquid leakage, it is safer, and suitable for all types of cars and seasons. Common small boxes are round and square, which can be placed in the door storage compartment, armrest box and other places.

[0004] With the development of in-vehicle intelligent technology, in-vehicle fragrance devices have begun to develop towards in-vehicle aromatherapy machines and intelligent in-vehicle fragrance systems. In-vehicle aromatherapy machines use ultrasonic vibration, microporous atomization and other technologies to atomize essential oils or perfumes into tiny particles, which are evenly distributed into the air in the car, which can better maintain the purity and durability of the fragrance. The latest intelligent in-vehicle fragrance system is an original fragrance system equipped with some high-end models. It can be integrated with the vehicle's air-conditioning system and automatically adjust the fragrance concentration and distribution mode according to environmental factors such as temperature, humidity, air quality in the car and user settings. However, at present, the selection of fragrance in intelligent in-vehicle fragrance systems or some mobile in-vehicle intelligent aromatherapy machines mostly relies on manual selection according to the preferences of a certain person (such as the driver's own preferences), and the degree of intelligence and humanization is relatively low.

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

[0006] In view of the problem that the vehicle-mounted fragrance device in the prior art has a low degree of intelligence and humanity in releasing fragrance, the present invention provides a control method, system, medium and processor for the vehicle-mounted fragrance device, which can perform intelligent and humanized selection of fragrance from the perspectives of safety, harmony among people and physical health, and improve driving and personal safety. The specific technical solution is as follows:

[0007] A control method for a vehicle-mounted aromatherapy device is 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; the method comprises the following steps:

[0008] Before the aromatherapy device releases the 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;

[0009] 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 on-board internal camera after each scent switch;

[0010] Analyze people's emotions based on facial expressions and record the number of people whose emotions change for 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 comprises the following steps:

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

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

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

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

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

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

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

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

[0023] While controlling the aromatherapy device to release a refreshing scent for the driver, the vehicle 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 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 aromas in a preset order, and collect the facial expressions of the people in the car through the internal camera of the car after each switch of aroma;

[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 mentioned 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] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0034] Figure 1 A schematic diagram of a control method of a vehicle-mounted fragrance device;

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

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

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

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

[0040] Embodiment 1

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

[0042] S1: Before the aromatherapy device releases the 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 releasing the fragrance is judged based on the facial expression analysis.

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

[0044] S11: Image acquisition. Choose a high-definition, wide-angle vehicle camera to ensure that it can clearly capture the facial details of people in different positions in the car. Generally, the camera can be installed near the rearview mirror inside the car, in the center above the front windshield, or above the dashboard inside the car, which can ensure a good shooting angle without affecting the driver's line of sight. For example, the cameras of some driver monitoring systems are often installed in such positions.

[0045] S12: Image preprocessing. Due to the complex and changeable lighting conditions in the car, the collected images need to be processed for lighting balance and denoising. For example, after graying the face image, the grayscale mean is calculated to determine the lighting balance function, and the image is processed for initial lighting balance and histogram equalization to enhance image details and reduce the impact of lighting. Then, posture correction is performed on face images at different angles, and they are converted to faces at standard angles. The occlusion of the face by objects such as sunglasses and hats is removed to improve the accuracy of subsequent expression recognition.

[0046] S13: Expression feature extraction. Use face recognition technology to accurately locate the key parts of the face, such as the position and contour of eyebrows, eyes, mouth, nose, etc., so as to more accurately analyze their morphological changes. Select several feature points around the key parts, such as the corners of the eyes, corners of the mouth, wings of the nose, etc., and capture the subtle changes in facial expressions by tracking the movement trajectory and position changes of these feature points. According to the position and movement information of the feature points, calculate the relevant expression parameters, such as the upward angle of the eyebrows, the degree of opening and closing of the eyes, the size of the mouth, etc., to provide a quantitative basis for the judgment of emotional state.

[0047] S14: Emotional state analysis. Based on the research results of psychology and cognitive science, a corresponding relationship model between different emotional states and facial expression features is established. For example, smiling, eyebrows stretching, and bright eyes usually correspond to pleasant emotions; frowning, squinting, and drooping mouth corners may indicate dissatisfaction or anger.

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

[0049] S16: Furthermore, in addition to facial expressions, other information such as the temperature, humidity, noise level of the vehicle environment, and the body language and voice intonation of the person may be combined for comprehensive analysis to more accurately determine their emotional state.

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

[0051] Mint fragrance, the smell of mint is refreshing and can help the driver keep a clear mind and improve concentration during driving, especially suitable for use during long-distance driving. When people feel sleepy or the air in the car is dull, the refreshing smell of mint aromatherapy can effectively stimulate the nerves, make people feel refreshed and comfortable, and relieve fatigue and stress.

[0052] Lemon scent, the fresh and natural scent of lemon gives people a feeling of vitality and can make the car full of vitality. This fresh smell can effectively neutralize the odor in the car, such as leather smell, smoke smell, etc., create a pleasant driving environment, make people happy and reduce 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 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 scent of lavender has the effect of soothing nerves and helping sleep. It can help car owners relax their bodies and minds while driving, reduce stress and anxiety. It is especially suitable for daily commuting or long-distance driving. It can help drivers maintain a calm state of mind and improve driving comfort.

[0056] S2: Control the aromatherapy device to release and switch aromas in a preset order, and collect facial expressions of people in the car through the on-board internal camera after each switch of aroma;

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

[0058] Solid Balm

[0059] Natural evaporation: Solid perfume slowly emits fragrance at room temperature through its own molecular movement. If it is placed in a well-ventilated location in the car, such as near the air-conditioning outlet, it will generally take about 10-20 minutes to make a small space in the car have a more obvious fragrance. To diffuse to the entire space in the car, it usually takes about 30 minutes to 1 hour.

[0060] With the help of external forces: If you turn on the air conditioner in the car, use the air conditioning wind to accelerate the diffusion of the ointment fragrance, 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. Under normal temperature, it will take about 15-25 minutes for the local space in the car to have a noticeable fragrance after opening. 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 parts of the car in about 15-20 minutes.

[0064] Aerosol car aromatherapy

[0065] Aerosol car aromatherapy has a strong fragrance and evaporates quickly, but it needs to be connected to electricity. After pressing the spray button, the fragrance will quickly spread in the car, and generally every corner of the car will be filled with fragrance in 2-5 minutes.

[0066] Car Aromatherapy Diffuser

[0067] Car aromatherapy machines usually use atomization and volatilization technology, which can atomize the aromatherapy liquid into tiny particles and evenly diffuse them in the air inside the car. Generally, after turning it on, it will take 3-8 minutes to create a certain fragrance atmosphere in the car, and about 10-15 minutes for the fragrance to spread throughout the car.

[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 usually allows you to smell the fragrance in the car within a few minutes after turning on the system, while the optional version may take about ten minutes. BMW's fragrance system releases 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 interior of the car. Generally speaking, the car can be filled with fragrance about 5-10 minutes after being turned on.

[0070] Therefore, the aerosol-type vehicle-mounted aromatherapy used in this embodiment adopts atomization 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 emotional changes of each person include changes from good mood to bad mood, from bad mood to good mood, good mood remaining unchanged and bad mood remaining unchanged. The specific emotional analysis and judgment method is as described above, or other methods that play the same role 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 from each other 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 worthwhile it is to choose this kind of fragrance to release.

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

[0075] Furthermore, if a person's mood improves 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 original mood of the person is good and the 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 bad moods as the fragrance released by the aromatherapy device. Use the number of people whose moods have bad moods as the judgment indicator instead of using the people in bad moods as the judgment indicator. Use the change effect brought about by the smell 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 scheme can eliminate such situations).

[0079] This application scheme can make intelligent and humanized selection of fragrance from the perspective of promoting overall harmony, safety and physical health of people on the bus, thereby improving the aromatherapy experience, driving and personal safety.

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

[0081] If there are children in the car, the aroma that will not make children feel bad is selected as the aroma released by the aroma device; if there are multiple aromas that will not make children feel bad, the aroma with the least number of people who feel bad is selected as the aroma released by the aroma device to avoid children making too much noise and affecting driving safety. Further, the aroma that children like is selected as the aroma released by the aroma device.

[0082] In the specific implementation, this scheme 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., changing from bad mood to good mood, or maintaining a good mood) is given top 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., changing from bad mood to good mood, or maintaining 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 to give priority to ensuring the safety of everyone.

[0084] In the specific implementation, this scheme 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 good emotions to bad emotions 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 according to the driver's facial expression changes in the above-mentioned fragrance change and emotion detection steps. Further, according to 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 entire longitudinal length of the eye when the eyes are open (usually referred to 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. By tracking the movement trajectory of the eyeball in the eye socket (some professional image analysis software has this function), if the eyeball flexibly turns 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 eyeball is relatively sluggish, turns slowly and has a small amplitude when sleepy, the eyeball 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] Use image software to measure the vertical displacement of the two ends and the middle of the eyebrows compared to the normal static state. When refreshing, the eyebrows tend to rise unconsciously. For example, the eyebrows and the tips of the eyebrows may rise by several millimeters or more compared to usual. The overall eyebrow shape is more stretched and raised than usual, indicating that the nervous system is in an excited and alert state. Analyze whether there are skin wrinkles between the eyebrows, and the depth of the wrinkles. When people are stimulated and enter a refreshing state, they sometimes frown slightly and form certain frown wrinkles. This is also an external manifestation of the brain's response to stimulation and nervousness. The depth and length of wrinkles can be quantified through image analysis software.

[0091] Pay attention to the shape of the mouth

[0092] Image analysis: Determine whether the mouth of the person in the image is open or closed, and how tightly it is closed. Generally, when in an alert state, the mouth is mostly naturally closed, or slightly pursed, and the lips are relatively tightly fitted. When sleepy, people may unconsciously open their mouths slightly, relax their chins, and yawn, etc. The mouth state is confirmed by analyzing features such as lip contours. Detect changes in the angle of the corners of the mouth. When in an alert state, the corners of the mouth may rise slightly, showing a relatively positive and energetic expression, rather than the loose and drooping corners of the mouth when sleepy. The image analysis software can accurately measure the angle change value of the corners of the mouth to assist in judgment.

[0093] In addition to analyzing the expression characteristics of each of the above parts separately, the overall facial expression state should also be considered in order to comprehensively judge the overall facial features. For example, a person who is in a state of refreshment will have relatively tight facial muscles as a whole, will not appear loose or lazy, and will have clearer facial contours, giving people a feeling of being refreshed and focused overall. By analyzing the texture and tightness of the facial muscles in the image (using functions such as texture analysis in image analysis software), combined with the performance of the eyes, eyebrows, mouth and other parts, it is possible to more accurately judge whether a person is in a state of refreshment.

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

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

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

[0097] The aromatherapy device is controlled to switch between refreshing fragrance for the driver and ordinary fragrance in sequence, which also prevents the driver from olfactory fatigue, maintains a cyclic stimulation to the driver, prevents the driver from returning to a state of fatigue driving, and allows the driver to stay awake. Wind oil can also be added to the refreshing fragrance to participate in the cycle to stimulate the driver to increase the refreshing effect.

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

[0099] While controlling the aromatherapy device to release the driver's refreshing fragrance, the car air conditioner is controlled to lower the temperature and play music with a lively rhythm, so as to help the driver refresh himself from multiple aspects such as smell, body feeling and hearing. Furthermore, each time a song is switched, a fragrance is switched, and the cycle is coordinated from multiple dimensions to increase the refreshing effect.

[0100] Furthermore, in terms of temperature regulation, when the temperature in the car is lowered to create a cool environment, it is better to use olfactory items that have a refreshing effect. For example, adjust the air conditioning temperature to about 20℃, which makes people feel fresh and cool, and let the cool smell of mint aromatherapy diffuse in the car. Under the dual stimulation, it can more effectively stimulate the brain nerves and keep people alert.

[0101] Furthermore, listen to music with a strong sense of rhythm: such as some rock and pop music with 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 spirit, but you should pay attention to the moderate volume 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 appropriate fragrance release strategy can be selected according to the emotional state of the occupants obtained through analysis. For example, when the occupants are generally nervous and anxious, lavender, chamomile and other soothing and relaxing fragrances can be released; if the atmosphere in the car is relatively dull, lemon, mint and other refreshing fragrances can be released to improve the emotional experience of the occupants.

[0104] Embodiment 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 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 aromas in a preset order, and collect the facial expressions of the people in the car through the internal camera of the car after each switch of aroma;

[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] Embodiment 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] Embodiment 4

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

[0114] The present application provides a control method for a vehicle-mounted fragrance device, which is 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; the method comprises the following steps: before the aromatherapy device releases the fragrance, the facial expressions of the people in the vehicle are collected by an internal camera on the vehicle, and the emotional state of each person before releasing the fragrance is determined based on the facial expression analysis; the aromatherapy device is controlled to release and switch the fragrance in a preset order, and the facial expressions of the people in the vehicle are collected by an internal camera on the vehicle after each fragrance is switched; 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 fragrance is recorded; the fragrance with the smallest number of people whose emotions have deteriorated is selected as the fragrance released by the aromatherapy device. The present application scheme can make intelligent and humanized selections of fragrances from the perspective of safety and physical health of people, thereby improving driving and personal safety.

[0115] Those of ordinary skill in the art will appreciate that the units of each example 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 only 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, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of 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, in essence, 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, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server or a 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-0nlyMemory), random access memory (RAM, RandomAccessMemory), mobile hard disk, magnetic disk or optical disk, etc., which 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate 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 specification of the present invention.

Claims

1. A control method for 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, 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; 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 on-board internal camera after each scent switch; Analyze people's emotions based on facial expressions and record the number of people whose emotions change for each scent. The fragrance that causes the smallest 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 children in the car, first select the fragrance that will not make children's mood worse as the fragrance released by the aromatherapy device; if there are multiple fragrances that will not make children's mood worse, then select the fragrance with the least number of people whose moods are worse as the fragrance released by the aromatherapy device to avoid children making too much noise and affecting driving safety.

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

4. 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.

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

6. The control method of the vehicle-mounted fragrance device according to claim 4, 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 fragrance.

7. The control method of the vehicle-mounted fragrance device according to claim 4, characterized in that: The following steps are also included: While controlling the aromatherapy device to release a refreshing scent for the driver, the vehicle air conditioner is controlled to lower the temperature and play lively music.

8. A control system for a vehicle-mounted fragrance device, characterized in that: A control method for a vehicle-mounted fragrance device according to any one of claims 1 to 7, comprising: The first judgment module is used to collect the facial expressions of people in the car through the 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 aromas in a preset order, and collect the facial expressions of the people in the car through the internal camera of the car after each switch of aroma; 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; 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.

9. 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 7.

10. A processor, characterized in that: The processor is used to run a program, wherein the program, when running, executes the control method of the vehicle-mounted fragrance device according to any one of claims 1 to 7.

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