FRAGRANCE SELECTION SYSTEM

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of perfumery, and more specifically. Its application is particularly advantageous in the field of fragrance selection. STATE OF THE ART

[0002] There are a very large number of perfumes available. Moreover, this number is constantly increasing. Therefore, it is becoming increasingly difficult for a user to select a specific perfume that meets their expectations.

[0003] An object of the present invention is therefore to propose a system and a method to help a user select the perfume that will meet their expectations and, for example, have an effect on their behavior or that of the people around them.

[0004] Currently, it is mainly perfume sellers who try to guide users in choosing the most suitable fragrance, which makes it an unreliable system based exclusively on the marketing aspects of the sellers, or even their commercial objectives.

[0005] Thus, the present invention aims to offer the user an improved system and method to assist in selecting a fragrance, for example, based on the desired influence and their emotional state.

[0006] Document WO2018 / 163361 discloses a method for selecting a fragrance based on a mood to be achieved.

[0007] The process described in this document is unsatisfactory because it is limited both in the range of fragrance solutions available to the user and in the methods for determining said fragrance solution. Therefore, there is a need to improve the fragrance selection process disclosed in document WO2018 / 163361.

[0008] The other objects, features, and advantages of the present invention will become apparent from an examination of the following description and accompanying drawings. It is understood that other advantages may be incorporated. SUMMARY

[0009] To achieve this objective, according to one embodiment, a system is provided to assist a user in selecting a fragrance from a database containing a plurality of fragrances, in which the system includes: a user interface configured to receive and transmit to the system at least one data point relating to an objective to be achieved and a user profile of the user, the data point relating to an objective to be achieved and the user profile being a function of personal data provided directly or indirectly by the user, a device configured to generate at least one stimulus intended for a user to receive, at least one physiological sensor configured to capture at least one, preferably two, physiological data points of the user in response to said at least one stimulus, the system being configured to generate a physiological profile from the at least one physiological data point, and to select at least one user fragrance from the database based on the physiological profile,of the user profile and data relating to a goal to be achieved.

[0010] As previously mentioned, numerous perfumes exist today. Determining a perfume that meets a user's expectations is not easy and depends on many factors. The impact of a fragrance's olfactory perception on the wearer's behavior or that of their immediate surroundings can, for example, lead to an improved mood, increased self-confidence, a sense of calm, or greater openness to others. Furthermore, interactions between the wearer's physiological parameters, such as (but not limited to) their temperature, natural body odor, perspiration, etc., and the fragrance molecules can alter the fragrance's effect. These changes can include, for example, alterations in intensity, longevity, the potential for allergic reactions, or even the fragrance's scent itself.Thus, for each user, depending on these physiological parameters and the molecular composition of the fragrance, different chemical effects may occur. The invention therefore makes it possible to take these chemical interactions into account in order to determine the appropriate fragrance or group of fragrances.

[0011] Another aspect of the invention relates to a system to assist a user in selecting a fragrance from a database containing a plurality of fragrances, characterized in that the system comprises: a user interface configured to receive and transmit to the system at least one data point relating to an objective to be achieved and a user profile of the user, the data point relating to an objective to be achieved and the user profile being a function of personal data provided directly or indirectly by the user, a device configured to generate several stimuli intended for reception by the user, said stimuli being olfactory, visual and / or auditory stimuli, at least two physiological sensors configured to capture at least two different physiological data points of the user in response to said stimuli, a device configured to capture at least one brainwave generated by the user in response to said several stimuli and to generate at least one brain signal based on this brainwave, the brain signal being different from the at least two physiological data points, preferably,The at least two physiological data points captured by the physiological sensors are different from the at least one brain wave; the system being configured to generate a physiological profile from the at least two physiological data points and the at least one brain signal, and to select at least one user fragrance from the database based on the generated physiological profile, the user profile, and data relating to a goal to be achieved. Preferably, but not exclusively, the physiological profile is generated from at least two physiological data points and the brain signal.

[0012] Another aspect concerns a method of using the system to assist a user in selecting a fragrance from a database containing a plurality of fragrances, each with a fragrance profile, in which the method of assisting in the selection of a fragrance comprises the following steps implemented by a computer system using at least one microprocessor: Generation of data relating to an objective to be achieved and a user profile of the user, the data relating to an objective to be achieved and the user profile being a function of personal data provided directly or indirectly by the user; Generation of a pre-selection of fragrances based in particular on the data relating to an objective to be achieved, the user profile and on chemical characteristics of the fragrances stored in the database, Generation of at least one, preferably at least two, stimulus intended for a reception by the user, Generation of a physiological profile based on the generation and capture of at least one, preferably at least two, physiological data of the user in response to said at least one stimulus; Determination by an algorithm of a user fragrance profile as a function of the physiological profile, the user profile and the data relating to an objective to be achieved of the user;Comparison of the user fragrance profile determined by the algorithm with the fragrance profiles in the database and selection of at least one user fragrance; Display of the at least one selected user fragrance.

[0013] Optionally, the usage process also includes a step of generating a physiological profile based on: at least one brain signal, the brain signal being based on at least one brain wave generated by the user in response to said at least two stimuli;; the generation and capture of at least two physiological data from the user different from the at least one brain wave, in response to said at least two stimuli;

[0014] The method according to the present invention allows for the selection of a fragrance based on the user's preferences. This selection is made, in particular, through consideration of their physiological parameters and user profile. This enables the selection of a fragrance with a good chemical match for the user and that meets their expectations. Chemical match here refers to the correspondence between the different molecules of the fragrance and the molecules in the user's body.

[0015] Finally, the invention also relates to a cabin comprising a system including a user interface, a screen and at least one physiological sensor configured to capture physiological data.

[0016] The invention relates to a cabin comprising a system as described in this application and implementing the method as described in this application, the cabin comprising a neural headset configured to capture at least one brainwave, a user interface, a screen and at least one physiological sensor configured to capture at least two different physiological data points distinct from the brainwave captured by the neural headset.

[0017] One embodiment of the invention relates to a system to assist a user in selecting a fragrance from a database containing a plurality of fragrances, characterized in that the system comprises: a user interface configured to receive and transmit to the system at least one data point relating to an objective to be achieved and a user profile of the user, the data point relating to an objective to be achieved and the user profile being a function of personal data provided directly or indirectly by the user, at least one physiological sensor configured to capture at least one, preferably two, physiological data points of the user, the system being configured to generate a physiological profile from the at least one physiological data point, and to select at least one user fragrance from the database based on the physiological profile, the user profile and the data point relating to an objective to be achieved. BRIEF DESCRIPTION OF THE FIGURES

[0018] The aims, objects, features and advantages of the invention will become clearer from the detailed description of an embodiment thereof, which is illustrated by the following accompanying drawings in which: There figure 1 represents a general outline of the principles of the invention. figure 2 is an example of a cabin implementation using the system. figure 3 represents a diagram of a more precise embodiment of the system according to the invention. figure 4 represents an implementation of the fragrance selection assistance process. The drawings are given as examples and are not limiting to the invention. They constitute schematic representations of principle intended to facilitate understanding of the invention and are not necessarily to scale with practical applications. figure 5 is an illustration of a realization of the emotional interface device DETAILED DESCRIPTION

[0019] Before proceeding with a detailed review of the embodiments of the invention, optional features that may be used in combination or alternatively are listed below: The system includes a device configured to capture at least one brainwave from the user and to generate a brain signal preferably in response to at least one stimulus from the user, the brain signal being different from at least one physiological data point, and wherein the physiological profile is generated from at least one physiological data point and from the brain signal. The physiological profile is generated without the user knowingly giving any instructions in response to said at least two stimuli.

[0020] In particular, the user does not press any buttons or issue any commands or vocal responses in response to said at least two stimuli.

[0021] Thus the physiological profile is generated without the user intervening or knowingly confirming their feelings. the user fragrance is selected without the user knowingly giving instructions in response to said at least two stimuli.

[0022] Specifically, the user does not press any buttons or issue any commands or vocal responses to these at least two stimuli. Thus, the user's fragrance is selected by the system without any feedback from the user.

[0023] Thus, the invention ensures that the fragrance selection process is not altered by the user's conscious state. The selection process is linked to the user's unconscious and emotional state.

[0024] Therefore, the invention allows for a fragrance selection that is more effective in acting on the desired emotional state.

[0025] The user profile includes at least one piece of data taken from among the user's age, sex, gender, personality trait or ethnic origin. The user profile may include data relating to the user's emotional state before the user receives at least one stimulus. At least one physiological sensor is configured to capture several, and preferably at least two, preferably at least three, preferably at least four, preferably at least five, physiological data points. It is specified that the system's accuracy can be increased by considering a larger number of physiological data points. The at least two physiological data points, distinct from brainwaves and captured by the physiological sensor, are chosen from among the user's temperature, blood pressure, perspiration, emotion, respiratory rate, skin conductance, saliva composition, eye movement, pupil dilation, or heart rate.

[0026] The system includes several sensors, each configured to capture a different physiological data point. At least one physiological sensor configured to capture at least one, and preferably several, physiological data other than a brainwave is configured to capture at least one physiological data taken from among the user's temperature, blood pressure, perspiration, emotion, respiratory rate, skin conductivity, saliva composition, eye movement, pupil dilation or heart rate. At least one physiological sensor configured to capture at least one, and preferably several, physiological data other than a brainwave is configured to capture all of the following physiological data: the user's temperature, blood pressure, perspiration, emotion, respiratory rate, skin conductivity, saliva composition, eye movement, pupil dilation or heart rate.Each fragrance in the database comprises a fragrance profile distinct from the others. The system is further configured to determine a user fragrance profile based on the physiological profile, the user profile, and data related to a specific objective. It includes an algorithm configured to compare the user fragrance profile with the profile of each fragrance in the database (which contains multiple fragrances) and select at least one user fragrance based on this comparison. The system also includes an emotional interface device configured to provide an interface between the user and the system, allowing the user to indicate data related to their emotional state before and / or after exposure to at least two stimuli.The system includes a microphone that allows for both voice input of user profile data and / or the function of an emotional interface device. This device comprises multiple buttons, each configured to indicate a user's emotional state, preferably by generating a different tactile and / or visual stimulus. The emotional interface device is configured to provide an interface between the user and the system, allowing the user to indicate their emotional state before receiving a stimulus and to determine their objective emotional state. Each button of the emotional interface device has a different tactile coating associated with a specific emotional state. Some buttons of the emotional interface device have a different color associated with a specific emotional state.Each key of the emotional interface device includes a mechanism for generating at least one additional stimulus for the user, allowing the user to indicate their emotional state. The system compares at least one physiological data point of the user captured before said stimulus with at least one physiological data point of the user captured after said stimulus to verify the user's emotional state. The system includes an optical sensor configured for facial recognition of the user, and in which the system is configured to determine, based on facial recognition, at least one piece of user profile data or a physiological data point other than brainwaves.The device for generating a stimulus intended to be received by the user is a unique contact surface, the surface being configured to elicit a unique tactile sensation from the user. The system is configured to determine, preferably via a facial recognition device such as a camera, at least one of the following based on the user's facial recognition: the user's age, sex, gender, emotion, ethnicity, temperature, or perspiration.The system generates a physiological profile from at least one physiological data point, and selects at least one user fragrance from its database based on the physiological profile, the user profile, and data related to a specific goal. This is achieved through a series of algorithms that constitute artificial intelligence. The user interface is configured to receive and transmit to the system at least one data point related to a defined emotional state of the user prior to the emission of a stimulus, referred to as the pre-stimulus emotional state. The pre-stimulus emotional state can, for example, be one of the following: anger, anxiety, joy, confidence, stress, fatigue, etc.The system preferably comprises several, and preferably at least three, physiological sensors configured to capture at least one, and preferably at least three, physiological data points of the user in response to at least one stimulus. These at least two stimuli have several parameters, preferably including stimulus type, duration, and intensity. These parameters are automatically determined based on at least one of the personal data provided directly or indirectly by the user and / or based on the physiological data and at least one brain signal captured respectively by the at least two physiological sensors and the device configured to capture at least one brain wave generated by the user in response to these several stimuli. The physiological profile is generated without the user knowingly giving any instructions in response to these at least two stimuli.The user fragrance is selected without the user knowingly giving any instructions in response to at least two stimuli. The stimuli have several parameters, preferably chosen from a stimulus type, duration, and intensity, these parameters being automatically determined based on at least the personal data provided directly or indirectly by the user and / or on physiological data and at least one brain signal captured respectively by at least two physiological sensors and the device for capturing at least one brainwave. The physiological profile further includes a history of the user's responses to the stimuli generated and intended to be received by the user.said history is generated by performing the following steps: Identification, based on the objectives to be achieved and personal data, of a pre-recorded target profile in the database; At least one cycle, and preferably at least two cycles, each cycle comprising the following successive steps, at least some of these steps being performed by a computer data processing system: a. Generation of at least one additional stimulus; b. Capture of at least one physiological data point and a brain signal from a brainwave of the user, the physiological data and the brainwave being generated by the user in response to said at least one additional stimulus; c. Updating of the physiological profile based on the physiological data and the brainwave generated by the user in response to said at least one additional stimulus; d.Comparison of the updated physiological profile with pre-recorded profiles in the database. If the updated physiological profile: matches a pre-recorded profile in the database, then generate the history based on the additional stimuli of all cycles; does not match any pre-recorded profile in the database, then repeat steps a to d with stimuli having different parameters from one cycle to the next. The history generation includes at least two and preferably at least five cycles.

[0027] The cabin includes a neural headset configured to capture physiological data different from the physiological data. The cabin includes a system for diffusing a fragrance by micro-nebulization and / or by dry diffusion.

[0028] It is specified, within the framework of the present invention, that the terms fragrance and parfum are synonyms and both refer to an odor.

[0029] System 1 according to the invention helps a user to select a fragrance based on their objective, user profile 20 and at least one physiological data 31, preferably in response to at least one stimulus.

[0030] System 1 according to the invention helps a user to select a fragrance, particularly based on the user's objectives.

[0031] Indeed, for the same user, different perfumes can be worn depending on the desired outcome. An objective or expectation is understood to be a psycho-physiological or olfactory effect on the behavior of the user wearing the fragrance or on their immediate surroundings. Examples, though not limited, include accentuating a personality trait, communicating a mood, creating seduction in a romantic setting, enhancing a sense of experience during a business meeting, or even altering one's perception of age, etc. The effect of the fragrance is temporary and intended for healthy individuals. Therefore, neither System 1 nor the process relates to the provision of therapeutic treatment or even preventative therapy.

[0032] The objective to be achieved can be represented by a piece of data, described as data relating to an objective to be achieved.

[0033] Taking into account the user's objective when determining the appropriate fragrance is paramount for optimal user satisfaction.

[0034] Thus, depending on the objectives to be achieved, different fragrances can be used. System 1 is configured to take into account the data relating to an objective to be achieved and to filter certain fragrance ranges in database 40 according to that objective.

[0035] To achieve this, system 1 includes a user interface 10 allowing the user to specify their objective. The user interface 10 can, for example, be a touchscreen, or a keyboard for entering information.

[0036] User interface 10, for example, can include a list of different objectives from which the user must select the one that best suits their needs. The advantage of this approach is that it makes it easier to link specific fragrance profiles to different objectives. Indeed, by having predefined objectives, it is possible to associate specific fragrance profiles with each objective.

[0037] A fragrance profile is associated with each fragrance stored in the database, which contains 40 fragrances. The fragrance profile includes its scent and the molecules that compose it.

[0038] For example, a certain type of odorant molecule can be associated with specific traits of the user's user profile. The association of physical parameters of the fragrance, such as its type of odorant molecule, with a specific objective is based either on a machine learning system, on existing databases of scientific and / or marketing studies, or on a combination of both. The database could be an aromachological database.

[0039] Preferably, system 1 has access to a database 40 containing, for each fragrance, data from scientific and commercial studies. Advantageously, the connection to the database 40 can be made by wireless communication means as illustrated in the figure 3This can also be achieved through wired communication methods (not shown in the figures). These studies provide feedback on different fragrance profiles based on the desired objectives. Furthermore, system 1 is configured to record each selection and learn, based on user feedback, the relevance of associating a fragrance profile with a predetermined objective.

[0040] In other embodiments of the invention, the user freely enters the objective they wish to achieve. In this case, system 1 includes a subsystem that enables a match between the objective freely entered by the user and the fragrance profiles available in the database containing several fragrances. Advantageously, the match is made by means of an artificial intelligence learning algorithm.

[0041] Artificial intelligence 45 is implemented by at least one microprocessor. The algorithm is configured to learn from different users and their varying physiological responses to different stimuli, identifying the elements that enable them to achieve their objectives. Learning by the system is preferable, even necessary, to take into account the user's specific characteristics. It is also possible to allow artificial intelligence 45 to learn generic behaviors. Such learning facilitates the identification and adaptation of the user's specific needs. This implementation, along with the algorithm's learning, allows for greater precision in formulating the objective and determining the fragrance for the user, ideally an optimal fragrance.

[0042] Learning is achieved by analyzing the user's physiological data before any stimulus is applied and comparing it to a target physiological profile. This target physiological profile is defined by a specific objective and is associated with the ideal, theoretical physiological state the user must reach to achieve that objective. For example, the target physiological state might include a specific heart rate, specific perspiration level, and so on, depending on the objective, such as a rested or energized state. Comparing the initial physiological state with the target physiological state allows the system to determine which stimuli to generate. With each stimulus generation, the system captures the user's physiological data and brainwave patterns.This data capture allows the system to learn the user's reaction, through their physiological data and brainwaves, to each stimulus. Learning these reactions then enables the creation of a history, allowing for the improvement of the user's physiological profile. It should be noted that this profile evolves rapidly depending on numerous parameters. Thus, a profile may be relevant at time T but not relevant at time T+1, particularly depending on the user's initial physiological and emotional state.

[0043] Learning is important because relying solely on a pre-recorded, purely theoretical target physiological profile makes it impossible to accurately select the relevant fragrance to achieve a specific goal. Therefore, it is crucial that the system be able to learn the user's reactions to each stimulus it emits. The steps involved in generating this history are detailed earlier in this description.

[0044] As a reminder, a perfume or fragrance is a combination of one or more odorant molecules, possibly in a solvent. These odorant molecules then come into contact with and react to the user. A chemical interaction occurs between the molecule(s) composing the perfume and the user's own molecules. This chemical reaction can also have different behavioral effects on users, for example, a feeling of discomfort or well-being, etc. Therefore, depending on the individual, a different reaction to the perfume may occur.

[0045] To take these variations into account, and to better adapt to the user, system 1 generates and takes into account the user profile 20 of the user.

[0046] User Profile 20 is generated by taking into account several parameters, such as age, sex, gender, the presence or absence of atopic skin, ethnicity, and personality traits. Varying the fragrance selection based on these parameters is preferable to ensure a fragrance that aligns with the user's Profile 20. Indeed, parameters such as sex, age, and ethnicity trigger the body to generate specific molecules that vary from user to user. These molecules interact chemically with the fragrance's component molecules. It is therefore possible to predict these interactions based on these parameters. Determining these interactions then allows for the identification of one or more preferred user fragrances.

[0047] It should be noted, for example, that some fragrances are developed to be suitable for younger people, different genders, different ethnic backgrounds, or even depending on the location where the perfume is used. Indeed, depending on the environment, the perfume's chemical composition and / or the transmission of odor molecules will be altered. These differences in fragrance user profiles take into account, in particular, the physiological specificities of these criteria. Similarly, depending on personality traits such as shyness or eccentricity, certain types of perfume will appeal to the user or not. It is important that the fragrance appeals to the user in order to enable them to achieve their objective. In fact, a perfume that does not appeal to its user will cause additional stress, which will often hinder the achievement of the set objective.

[0048] Taking into account this user profile 20 makes it possible to improve the selection of the pending perfume with the specificities of the user.

[0049] Thus, as indicated above, system 1 takes these specificities into account in order to meet the objective set by the user.

[0050] For example, when choosing a fragrance for someone starting their career, determining their age can help select a scent that conveys a sense of maturity, thus compensating for an appearance of inexperience. Considering these criteria significantly refines the fragrance selection process.

[0051] User profile 20 can be taken into account through the user interface 10. In this embodiment, the user, for example, answers a questionnaire via a touchscreen using a keyboard. In another embodiment of the invention, the system 1 further includes an optical sensor 35 which, by means of a subsystem, enables facial recognition. The optical sensor is preferably a camera. The sensor can capture light in different wavelength ranges, including invisible light ranges. Thus, this facial recognition makes it possible to automatically determine at least one, and preferably all, of the following parameters: sex, gender, age, emotions, eye movements, pupil dilation, temperature, perspiration, heart rate, or the user's ethnic origin.

[0052] Advantageously, this system allows for the automatic entry of a number of important parameters. In this embodiment, the user can, if necessary, validate and / or correct the information pre-filled by system 1 through user interface 10.

[0053] System 1 may also include a module for connecting to one or more external servers on which user profile data 10 is already stored, such as, for example, the user's social network. Thus, during use, the user can connect to one of their social networks, enabling automatic pre-filling of the user profile 20. System 1 can also take into account various information from the social network to determine the user's general profile, including their reactions to different situations. This data processing makes it possible, for example, to facilitate facial recognition by determining, based on various photographs published on the social network, the characteristics of certain emotions (facial features such as the shape of the lips, eyes, or cheekbones when smiling, grimacing, etc.).This can also help determine the user's main locations using geolocation data collected by the social network. This geolocation data then allows for a more precise selection of perfume based on the geographical locations where the perfume is primarily used.

[0054] Advantageously, facial recognition is configured to detect at least two different emotions in the user when exposed to at least one stimulus. Preferably, facial recognition is configured to recognize at least four different emotions. Preferably, facial recognition is configured to recognize at least six different emotions.

[0055] As previously stated, the fragrance selection aid system 1 also relies on at least one physiological data point 31 in response to at least one stimulus. Advantageously, the determination of the user fragrance 50 is based on at least two physiological data points 31 in response to at least one stimulus. These physiological data points 31 allow for the determination of a physiological profile of the user. Preferably, the determination of the user fragrance 50 is based on a plurality of physiological data points in order to achieve improved, or even optimal, accuracy in detecting the user's emotions.

[0056] The system may include a microphone. The presence of a microphone allows, firstly, the user profile information to be entered using voice, and secondly, it allows the user to provide data relating to their emotional state. Based on variations in voice (trembling, confidence, etc.) in response to different stimuli, the system is configured to determine the user's emotional state.

[0057] Advantageously, the user profile 20 also includes data relating to the user's emotional state before any stimulus is emitted. This emotional state can be entered either by the user directly through the user interface 10, or by capturing one or more—that is, at least two—of these physiological data points 30, or by combining these two data collection methods. Entering data relating to the user's emotional state before the stimulus is emitted allows for confirmation of the variation in these physiological data points 31 and thus facilitates the establishment of the physiological profile 31.

[0058] In one embodiment of the invention, at least one of the physiological data 31 is a brainwave captured by a physiological sensor 30, preferably a brainwave sensor comprising, preferably, at least two electrodes such as, for example, a neural headset 36. In another embodiment, the brainwave sensor is an ear device configured to capture brainwaves. Advantageously, the system 1 captures several brainwaves in order to generate one or more brain signals such as, for example, an electroencephalogram, in response to at least one stimulus. The brainwave sensor is configured to capture at least one of the data and preferably several data from among the theta, alpha, beta, and gamma brainwaves. Advantageously, the neuralwave sensor enables the creation of a brain-computer interface to monitor the evolution of the user's brain activity during the stimulus(s).

[0059] Advantageously, System 1 is configured to interpret the brain signal received in response to at least one stimulus. This interpretation allows System 1 to determine how the user feels about that stimulus. Thus, System 1 is able to determine the user's reaction or emotion elicited by the stimulus. In other words, this allows System 1 to determine whether the stimulus is pleasant, unpleasant, euphoric, etc., for the user.

[0060] Advantageously, the neural headset 36 includes between two and fifteen electrodes.

[0061] The user's emotional state in response to a stimulus is not solely determined by their brain signal, such as an electroencephalogram (EEG), but also by other physiological data captured by System 1 and / or by data from facial recognition, if available. Advantageously, the brain signal is not mandatory, and the user's emotions can be detected by assimilating other physiological data.

[0062] For example, system 1 may include at least one physiological sensor, and preferably several physiological sensors, and preferably at least three. For the sake of brevity, physiological sensors are also referred to simply as sensors. Examples of sensors include a temperature sensor, a blood pressure sensor, a perspiration sensor, an emotion sensor, a respiratory rate sensor, a skin conductivity sensor, or a user heart rate sensor. The sensor may also, for example, detect eye movement or pupil dilation. In another embodiment compatible with the previous ones, the sensor may collect and analyze the user's saliva. Saliva collection allows, in particular, for an analysis of the user's stress level.The analysis of the user's stress level is carried out, in particular, by taking into account the cortisol levels in their saliva. Furthermore, saliva collection can optionally allow for DNA analysis of the user. More specifically, this involves analyzing certain portions of the genome in relation to the user's biological data and / or their olfactory abilities. This genetic analysis can then lead to a better selection of the fragrance.

[0063] Based on all the data collected, system 1 is able to edit and refine the user's physiological profile. The greater the quantity and type of data, the more precise the user's physiological profile 31 will be in relation to the stimulus. This increased precision, in combination with the user profile 20, allows for the precise determination of the user's fragrance profile 50.

[0064] In one embodiment of the invention, physiological sensors can be worn by the user outside of system 1. This is the case, for example, with a heart rate sensor, which could be a smartwatch. More generally, various physiological data can be captured by connected devices worn by the user, such as, for example, a smartphone, a fitness tracker, a pedometer, a pacemaker, etc. In this embodiment, system 1 includes a communication device, preferably wireless such as, for example, Wi-Fi, Bluetooth, a telephone network, etc., with the connected device worn by the user. This connection between system 1 and the smartwatch allows system 1 to retrieve at least one, and preferably all, of the physiological data recorded by the smartwatch.Advantageously, the system's ability to retrieve certain physiological data from the user's history allows it to better understand the user's daily emotional state. This consideration can help clarify the user's objectives and the means to achieve them.

[0065] System 1 is configured to integrate physiological data, preferably after user stimulation.

[0066] To achieve this, system 1 includes at least one device configured to generate at least one stimulus and preferably several (i.e., at least two) stimuli. This stimulus is intended to be received by the user. Preferably, at least one device is configured to emit several, i.e., at least two, stimuli to the user. The types of stimuli can be odors, images, sounds, or temperature variations. The types of stimuli can be all different, all the same, or a combination of identical and different stimulus types. Preferably, the stimuli are olfactory signals such as, for example, odors, and / or visual signals such as, for example, images.The stimuli can be emitted successively or simultaneously by one or more screens 32, one or more scent diffusers 33, and / or one or more speakers 34, or even via a virtual reality headset and headphones (not shown in the figures). This last implementation with a headset allows for complete user immersion and thus a better response to the stimuli. Once System 1 has determined the user profile 20, it can pre-select a plurality of fragrances from the database containing several fragrances. Through this pre-selection, System 1 can stimulate the user to determine their reaction to these different pre-selected fragrances. Based on the user's reactions, System 1 is then able to determine the user's physiological profile 31 and refine the fragrance selection.

[0067] In one embodiment of the invention, system 1 includes an emotional interface device 70 that allows the user to indicate their emotional state. For example, this emotional interface device may be a microphone, not shown in the figures. Thus, the user can indicate their emotional state using their voice. The emotional interface device 70 may be physical or virtual. In one embodiment of the invention, the device takes the form of a physical or virtual questionnaire. For each stimulus, the user can indicate their emotional state through, for example, physical, tactile, or virtual buttons and / or checkboxes or a slider. This latter embodiment allows for greater precision in the selection of the emotional state.

[0068] Advantageously, the emotional interface device 70 takes the form of a piano.

[0069] The Emotional Interface Device 70 comprises a number of buttons. Each button is associated with an emotion. The buttons are preferably grouped together by emotion category, for example, anxiety, well-being, animosity, discomfort, comfort, affection, and gentleness. Grouping the buttons according to broad emotion categories facilitates user perception and thus their ability to express their emotions.

[0070] In one embodiment of the invention, each key is configured to elicit a specific emotion from the user when the user touches it.

[0071] In the embodiment where the emotional interface device 70 is a physical device, each key has a different coating. Each coating provides a different tactile feel through, for example, varying degrees of roughness, smoothness, or texture. A weak electrical current may also flow through the keys to amplify the user's tactile experience. In the embodiment where the emotional interface device 70 is a virtual device, specific haptic feedback allows for tactile sensation through a screen, for example. Haptic feedback can be achieved, for example, through localized vibration, an electrical current, or any other method that provides tactile feedback to the user.

[0072] Each key is associated with an emotion. Thus, when the user experiences a stimulus, they can scan the keys and then determine, based on the tactile feedback, which key best corresponds to their feeling. The emotional interface device 70 can therefore quickly identify the emotion felt by the user. In the preferred embodiment of the invention, the emotional interface device 70 allows the user to indicate their pre-stimulus emotional state, that is, before a stimulus is generated for the user's attention. The emotional interface device 70 also allows the user to indicate the target emotional state to be achieved.

[0073] In one specific embodiment, the emotional interface device 70 can be used by the user in response to stimuli. However, this embodiment is not mandatory, particularly because it requires user intervention during the physiological profile determination process 31. Indeed, it is preferable for the user to be completely relaxed during the physiological profile determination process 31. Using the emotional interface 70 during this physiological profile determination process requires user intervention, and therefore a pause in their relaxation process. Consequently, the emotional interface device 70 may not be active during the physiological profile generation.

[0074] The keys on the Emotional Interface Device 70 can be a single color or different colors. Advantageously, having a specific color for each key allows for emphasis on the emotion associated with that key.

[0075] In another embodiment of the invention, the buttons of the emotional interface device 70 all have an identical tactile feel. In another embodiment, compatible with the preceding ones, each button emits a distinct olfactory and / or visual stimulus. In this specific embodiment, the emission of stimuli by the emotional interface 70 is preferably carried out at the end of the selection process and after the determination of the physiological profile. These stimuli are intended, in particular, to verify the user's psycho-physiological reaction to the fragrances selected after the artificial intelligence algorithm 45 has learned the user's behavior. This embodiment thus makes it possible to validate the accuracy of System 1's understanding of the user and, consequently, the fragrance selection made by System 1.

[0076] The invention also relates to the system learning the user's reactions to stimuli. To this end, the physiological profile 31 is updated after each stimulus emitted by the system 1. Indeed, an initial physiological profile 31 is generated upon receipt of the physiological data captured by the physiological sensors (30) and the brain signal captured by the device configured to capture at least one brainwave, preferably a neural headset. The subsequent stimulus(s) emitted by the system to the user capture further physiological data and brainwaves. This additional data is then incorporated into the initial physiological profile 31 to update it. Several updates of the physiological profile 31 are performed before the user's fragrance is determined.It is preferable, even necessary, that this learning be carried out without the user knowingly giving feedback to the system in order to be able to select a user fragrance in perfect harmony with the user's body response without taking into account their prejudices and psychological preferences.

[0077] Of course, learning can continue later with user feedback. However, there is necessarily a learning phase without user feedback.

[0078] In another embodiment of the invention, each of the keys of the emotional interface device 70 has a distinct tactile feel from each other and emits a different olfactory and / or visual stimulus.

[0079] Advantageously, system 1 is configured to generate at least one stimulus, and preferably several stimuli. The stimuli can be of various kinds, such as olfactory signals like odors, visual signals like visual effects on a screen 32 or via a light source such as one or more light bulbs or lamps, or acoustic signals like sounds. Preferably, the stimuli are of different numbers and types. System 1 Operation

[0080] There figure 4 represents one realization of the functioning of system 1. Of course, this realization is not limiting and steps can be added and / or reversed in their chronological order.

[0081] Advantageously, when using system 1, the user will initially indicate the data relating to their objective. This indication can be in the form of a questionnaire, for example. In one embodiment of the invention, the objective to be achieved is a specific emotional state. To do this, the user can use the keys of the emotional interface device 70.

[0082] Once their objective is indicated, the user completes their user profile 20. Part of this user profile 20 may be pre-filled using a camera or video recorder configured to perform facial recognition and provide information related to a measurement or assessment of temperature or perspiration, for example. This is not visible in the figure 4but perfectly compatible with the implementation presented therein. Additional facial recognition methods, such as infrared image capture, can be included in System 1. These methods can improve facial recognition. In one embodiment, the user is prompted to confirm their profile information. As mentioned previously, the user's information can be pre-filled by retrieving their data from at least one of the social networks to which the user is registered.

[0083] System 1 will determine a pre-selection of perfumes from a database 40 containing a plurality of perfumes. This pre-selection is based on the user's user profile 20, the user's objective, and the fragrance profiles.

[0084] System 1 will then emit at least one stimulus, and preferably several stimuli. These stimuli are, for example, extracts of the different pre-selected perfumes, or at the very least similar scents.

[0085] The purpose of these stimuli is to generate a physiological profile 31 of the user in response to these stimuli. To do this, system 1 will capture at least two different physiological data points, for example, the user's body temperature or their heart rate and electroencephalogram. The at least two physiological data points captured by the physiological sensor are distinct from at least one brain wave. Advantageously, the capture of these elements is completely autonomous and requires no feedback from the user. The goal is to determine a physiological profile 31 of the user without their intervention. Indeed, user intervention in the generation of the physiological profile 31 is a source of bias in the generation of said physiological profile 31.Indeed, if the user is actively involved, that is, through conscious choices, in selecting the user's fragrance, then a dichotomy between the user's actual need and their desire may arise. This dichotomy can distort the selection result. The physiological profile 31 determined by the invention depends on the user's emotional state, preferably solely on their emotional state.

[0086] It is for these reasons that the physiological profile is generated following several (i.e., at least two) stimuli. That is, after and / or during the emission of the stimuli. These stimuli elicit a reaction from the user, and it is these reactions, captured by the physiological sensors and the device for capturing at least one brainwave, that enable the generation of a physiological profile. The prior art solution described in document WO2018 / 163361 does not provide this solution. One of the many differences between the present invention and this document is that the latter is limited to selecting a fragrance by using data knowingly transmitted by the user and modulating this data with physiological data retrieved by the sensors before the emission of a stimulus.Once the fragrance is selected by the system, it is emitted, possibly with other stimuli, to change the person's mood. If this fails, the process is repeated. The present invention, on the other hand, uses several stimuli to refine the physiological profile 31 before presenting the user fragrance 50. Preferably, the present system is configured to stop once the user fragrance 50 or group of user fragrances 50 is presented to the user. During the development of the present invention, it was found that this approach yields significantly different and more effective results than the solution described in the prior art.

[0087] To achieve this, the user must wear sensors to capture this physiological data. The sensors can be directly integrated into the system 1, or worn by the user from the outset. This would be the case for many wearable connected devices, such as a smartphone, a smartwatch, a bracelet, etc. Alternatively, or in combination, they are worn, associated with, or connected to a booth 60. The booth 60 can be fully or partially enclosed. Controlling the environment of the booth 60 is important. Indeed, by controlling this environment, it is possible to refine the response to stimuli, thus improving the creation of the physiological profile 31. The booth 60 can take the form of a dedicated space. It should be noted that an enclosed booth 60 allows for better control of stimuli.

[0088] Thus, cabin 60 allows for the strategic and optimal placement of fragrance diffusers. This reduces the amount of fragrance used, thereby limiting olfactory saturation for the user.

[0089] Indeed, one of the problems with a 60-meter cabin is odor saturation during stimulus generation. The diffusion of multiple fragrances in an enclosed or semi-enclosed space quickly saturates the user's olfactory receptors.

[0090] To limit this drawback, cabin 60 includes a fragrance diffusion system using micro-nebulization or dry diffusion.

[0091] In fact, perfumes are stored in liquid form, ready for use.

[0092] Advantageously, the perfumes diffused as stimuli are not diluted in alcohol but in another solvent. This advantageous characteristic helps to limit the saturation effect on the user's olfactory receptors.

[0093] Cabin 60 also allows the use of dry fragrance diffusers. The advantage of this type of diffusion is that it limits the saturation of the user's olfactory receptors. Dry diffusion can be achieved, for example, with diffusers such as the ScentysBox Interactive®. Document WO2018 / 163361 does not provide for this type of diffusion and requires a solvent. This requirement stems from the fact that it does not control the location of the diffusion. Therefore, a strong and powerful diffusion is necessary, which can also be bothersome for the user.

[0094] For example, document WO2018 / 163361 discloses perfumes stored in solid form and containing an alcohol-based solvent. Since WO2018 / 163361 is a portable device, it is not possible to optimize the perfume diffusion. Therefore, the diffusion must be powerful enough to adapt to all environments and easy to set up (thus requiring the use of alcohol-based perfumes). Furthermore, the cessation of the stimuli is controlled by the user. This is mandatory for this document because it is not possible to control the environmental conditions.

[0095] These problems are solved by using a booth 60 and a specific booth design that optimizes fragrance diffusion. This optimization allows control over both the delivered dose and its composition by removing alcohol-based solvents. In fact, thanks to this invention, it is possible to deliver multiple stimuli without saturating the user's olfactory receptors, thus enabling the generation of a more precise physiological profile 31.

[0096] The cabin 60 includes all the user stimulation devices. Therefore, the cabin 60 is equipped with at least, and preferably several, screens. Advantageously, the cabin 60 includes screens that allow the user to have their entire field of vision occupied. The advantage of such an arrangement is that it allows for total immersion and relaxation of the user. Indeed, the more relaxed the user is, the more their physiological parameters will reflect the response to the stimuli, and therefore the more precise the fragrance selection will be.

[0097] The cabin 60 incorporates light-emitting diodes (LEDs) within its walls, providing soft lighting throughout the cabin. This lighting is configured to change colors in response to certain stimuli. This allows, in particular, for the enhancement of the stimulus emitted for the user's attention.

[0098] System 1 can also, if available, take into account at least a history of certain physiological data about the user. For example, the wearable device can provide System 1 with a history of the data it has collected. This information allows for a more precise determination of the user's physiological profile. In particular, it allows for a more effective comparison of variations due to stimuli with the user's normal physiological state. Advantageously, this comparison makes it possible to detect the user's emotions in response to a stimulus.

[0099] In one embodiment of the invention, the user is prompted to describe their emotions using the emotional interface device 70. This allows for the identification of potential differences between the user's physiological state and their emotional experience. This enables, on the one hand, the refinement of the overall physiological profile, and on the other hand, the feeding of user feedback to an artificial intelligence algorithm.

[0100] In one embodiment of the invention, the steps of generating the user profile 20 and the physiological profile 31 are carried out at least partially together. For example, when the user enters the data for the user profile 20, stimuli are emitted by the system 1 and the user's physiological reaction is captured at that time.

[0101] Once user profile 20 and physiological profile 31 are completed, system 1 calculates at least one, and preferably the user fragrance, and displays at least one fragrance suitable for the given objective. The selected user fragrance is displayed on a screen. Preferably, system 1 displays a plurality of suitable fragrances to allow the user to define a user-specific fragrance profile.

[0102] The selection of at least one suitable fragrance is carried out by at least one algorithm implementing artificial intelligence 45. This artificial intelligence 45 can thus learn the behavior of at least one user in order to select the appropriate fragrances. This selection is notably made based on the user profile 20 combined with the physiological profile 31 with the different fragrances.

[0103] All data collected during the use of System 1 is stored in a System 1 database, preferably anonymously, to train a machine learning algorithm. This allows for improvements in fragrance pre-selection and selection based on the number of users. System 1 will more easily detect users' genuine emotions and more accurately match each user's profile with fragrance profiles.

[0104] The creation of a database allows for the improvement of artificial intelligence, enabling the selection of personalized fragrances. Specifically, the database includes an association for each fragrance with the physiological profile to be achieved for a given objective. In other words, for each fragrance, depending on the objective to be achieved, the database associates physiological and brain responses based on different stimuli. Thus, the system can compare the physiological and brain data emitted by the user in response to stimuli to determine if the fragrance is optimal or if new stimuli are needed to refine the fragrance selection.Physiological profile 31 further includes a history of the user's responses to stimuli generated and intended to be received by the user, the system being configured so that said history is generated by implementing the following steps: . Identification, based on the objectives to be achieved and personal data, of a pre-recorded target profile in the database, At least one cycle, and preferably at least two cycles, each cycle comprising the following successive steps, at least some of these steps being carried out by a computer data processing system: a. Generation of at least one additional stimulus, b. Capture of at least one physiological data point and a brain signal from a brainwave of the user, the physiological data and the brainwave being generated by the user in response to said at least one additional stimulus, c. Updating of the physiological profile based on the physiological data and the brainwave generated by the user in response to said at least one additional stimulus, d. Comparison of the updated physiological profile with pre-recorded profiles in the database, e.If the updated physiological profile: corresponds to a pre-recorded profile in the database, then the history is generated based on the additional stimuli of all cycles; does not correspond to any pre-recorded profile in the database, then steps a to d are repeated with stimuli having different parameters from one cycle to another.

[0105] Thus, stimuli are provided to the user until their physiological profile matches a pre-recorded profile. The physiological profile then takes into account all the stimuli that led the user to the target profile.

[0106] Thus, incorporating historical data into the physiological profile allows for the rapid and automatic selection of the fragrance best suited to the user, guiding them toward their desired and corresponding emotional state. Furthermore, this selection is far more precise than in state-of-the-art solutions because it is based on the user's physiological reactions, ideally in real time, rather than their conscious state. These learning steps enable the personalized physiological profile to be updated based on the user's reactions to stimuli, thereby improving the accuracy of determining the appropriate fragrance for each user.

[0107] Furthermore, this updating of the physiological profile 31 can, for example, allow for the modulation of stimulus delivery based on the user's physiological data, thus avoiding undesirable effects such as stress generation during the transmission of stimuli to the user. It also allows for control of all stimulus parameters during the generation of the physiological profile 31.

[0108] Advantageously, the combination of user profile 20 and physiological profile 31 allows for the creation of a user fragrance profile. This makes it possible to associate each user with a set of several fragrances. Depending on the user's objectives, they can then choose the optimal fragrance from a shortlist.

[0109] System 1 can include the creation of personal user accounts. Each user can then access their complete user profile 20, their physiological profile 31, and more generally, their user fragrance profile and all associated perfumes. This solution has the particular advantage of updating this selection based on new fragrances added to the database 40.

[0110] In the end, system 1 can present one or more user fragrances 50 depending on the user profile 20 and physiological profile 31 of the user.

[0111] In one embodiment of the invention, system 1 takes the form of a cabin 60 in which the user is isolated when using system 1.

[0112] The invention is not limited to the embodiments described above and extends to all embodiments covered by the claims. Digital reference

[0113] 1. System 10. User Interface 20. User Profile 30. Physiological Sensor 31. Physiological Profile 32. Screen 33. Scent Diffuser 34. Speaker 35. Optical Sensor 36. Neural Headset 40. Database 45. Artificial Intelligence 50. User Fragrance 60. Booth 70. Emotional Interface Device

Claims

1. A system (1) for assisting a user in selecting a fragrance from a database (40) containing a plurality of fragrances, characterised in that the system comprises: a) a user interface (10) configured to receive and transmit to the system (1) at least one piece of data relating to an objective to be achieved and a user profile (20) of the user, the piece of data relating to the objective to be achieved and the user profile (20) being based on personal data provided directly or indirectly by the user, b) a device configured to generate several stimuli to be received by the user, said stimuli being olfactory, visual and / or sound stimuli, c) at least two physiological sensors (30) configured to sense at least two different pieces of physiological data of the user in response to said stimuli, d) a device configured to sense at least one brain wave generated by the user in response to said several stimuli and to generate at least one brain signal based on this brain wave, the brain signal being different from the at least two pieces of physiological data (30) e) the system (1) being configured to generate a physiological profile (31) at least from the at least two physiological pieces of data and the brain signal, and to select at least one user fragrance (50) from the database (40) based on the physiological profile (31) generated from the at least two physiological pieces of data and the brain signal, the user profile (20), and the piece of data relating to an objective to be achieved.

2. The system (1) according to the preceding claim, wherein the user profile (20) comprises at least one piece of data selected from age, sex, gender, character trait, or ethnic origin of the user and / or the at least two different physiological pieces of data of the brain wave sensed by the physiological sensor are taken from temperature, blood pressure, sweating, emotion, respiratory rate, skin conductivity, saliva composition, eye movement, pupil dilation, or heart rate of the user; preferably, the system comprises at least two, and preferably at least three physiological sensors (30) configured to sense at least three different physiological pieces of data of the user in response to said at least one stimulus.

3. The system (1) according to any one of the preceding claims, in which each of the fragrances in the database (40) has a fragrance profile distinct from the other fragrances, a) the system (1) is further configured to determine a user fragrance profile depending on the physiological profile (31), the user profile (20), and the piece of data relating to an objective to be achieved, and comprising an algorithm configured to: a) compare the user fragrance profile with the profile of each of the fragrances in the database (40), including a plurality of fragrances and b) selecting the at least one user fragrance (50) based on said comparison.

4. The system (1) according to any one of the preceding claims, comprising an emotional interface device (70) configured to make an interface between the user and the system (1), allowing the user to indicate their emotional state prior to emitting the at least two stimuli, and preferably enabling the user to update the physiological profile (31) as a result of the stimuli, and wherein the selection of at least one user fragrance (50) is based on the physiological profile (31) updated, the user profile (20), the piece of data relating to a objective to be achieved, and the user's emotional state, preferably, the emotional interface device (70) is configured to receive and transmit to the system (1) at least one piece of data relating to the user's emotional state defined prior to emitting a stimulus and referred to as the pre-stimulus emotional state, preferably, the system is configured to compare the at least one physiological piece of data of the user sensed before said at least one of the stimuli with the at least one physiological piece of data sensed said at least one stimulus in order to verify the user's emotional state.

5. The system (1) according to the preceding claim, wherein the emotional interface device (70) comprises a plurality of keys, and wherein each key is configured to indicate the user's emotional state, preferably by generating a different tactile and / or visual stimulus for each of the keys, and / or each of the keys of the emotional interface device (70) comprises a different tactile coating associated with a specific emotional state, and / or each of the keys of the emotional interface device (70) comprises a different colour associated with a specific emotional state and / or each key comprises a device for generating at least one stimulus taken from the stimulus or an additional stimulus different from other stimuli from the user, enabling the user to indicate their emotional state.

6. The system (1) according to one of the preceding claims, configured to, preferably via a facial recognition device of the system such as for example a camera or photographic apparatus, determine based on the user's facial recognition, at least one of the user's age, user's gender, user's emotion, ethnicity, user's temperature, user's sweating.

7. The system (1) according to any one of the preceding claims, wherein the physiological profile is generated without the user knowingly giving instructions in response to said at least two stimuli.

8. The system according to any one of the preceding claims, wherein the user fragrance (50) is selected without the user knowingly giving instructions in response to said at least two stimuli.

9. The system (1) according to any one of the preceding claims, wherein the generation of the physiological profile (31) by the system (1) from at least one physiological piece of data, and the selection by said system (1) of at least one user fragrance (50) from the database (40) based on the physiological profile (31), the user profile (20), and the piece of data relating to an objective to be achieved, are carried out by a series of algorithms forming an artificial intelligence (45).

10. The system (1) according to any one of the preceding claims, wherein the physiological profile (31) further comprises a history of the user's responses to stimuli generated and intended for reception by the user, the system being configured such that said history is generated by implementing the following steps: - Identifying, according to the objectives to be achieved with personal data, a target profile pre-recorded in the database, - At least one cycle, and preferably at least two cycles, each cycle comprising the following successive steps, some of at least these steps being performed by a data processing computer system: a) Generating at least one additional stimulus, b) Sensing at least one physiological piece of data and a brain signal derived from a brain wave of the user, the physiological piece of data and brain wave being generated by the user in response to said at least one additional stimulus, c) Updating the physiological profile based on the physiological data and the brain wave generated by the user in response to said at least one additional stimulus, d) Comparing the physiological profile updated with profiles pre-recorded in the database, e) If the physiological profile actuated: - corresponds to a profile pre-recorded in the database, then generating the history on the basis of the additional stimuli of all the cycles, - does not correspond to any profile pre-recorded in the database, then repeating steps a to d with stimuli having different parameters from one cycle to the next.

11. A method of use of the system (1) according to any of the preceding claims to assist a user in selecting a fragrance from a database (40) including a plurality of fragrances, each including a fragrance profile, characterised in that the method to assist in selecting a fragrance comprises the following steps implemented by a computer system using at least one microprocessor: a) Generating a piece of data relating to an objective to be achieved and a user profile (20) of the user, the data relating to the objective to be achieved and the user profile (20) being based on personal information provided directly or indirectly by the user; b) Generating a preselection of fragrances especially based on the piece of data relating to an objective to be achieved, the user profile (20), and chemical characteristics of the fragrances stored in the database (40), c) Generating at least two stimuli intended for reception by the user, said at least two stimuli being taken from olfactory, visual, and / or sound stimuli, d) Generating a physiological profile (31) based on at least: i. at least one brain signal, the brain signal being based on at least one brain wave generated by the user in response to said at least two stimuli; ii. at least two physiological pieces of data of the user, different from the at least one brain wave, said at least two physiological pieces of data being sensed in response to generating and sensing at least two stimuli; e) Determining a user fragrance profile by an algorithm based on the physiological profile (31), the user profile (20), and the piece of data relating to a objective to be achieved by the user; f) Comparing the user fragrance profile determined by the algorithm with the fragrance profiles in the database (40) and selecting at least one user fragrance (50); g) Displaying the at least one user fragrance (50) selected, preferably using a screen.

12. The method of use according to the preceding claim, wherein the stimuli have several parameters, preferably taken from the nature of the stimulus, a duration, and an intensity, said parameters being automatically determined based at least on said personal data provided directly or indirectly by the user and / or the physiological data and the at least one brain signal respectively sensed by the at least two physiological sensors (30) and the device for sensing the at least one brain wave, preferably, the physiological profile (31) further comprises a history of the user's responses to the stimuli generated and to be received by the user.

13. The method according to the preceding claim, wherein said history is generated by performing the following steps: - Identifying, based on the objectives to be achieved and personal data, a target profile pre-recorded in the database, - At least one cycle, and preferably at least two cycles, preferably at least five cycles, each cycle comprising the following successive steps, at least some of these steps being performed by a data processing computer system: a) Generating at least one additional stimulus, b) Sensing at least one physiological piece of data and a brain signal derived from a brain wave of the user, the physiological piece of data and brain wave being generated by the user in response to said at least one additional stimulus, c) Updating the physiological profile based on the physiological data and the brain wave generated by the user in response to said at least one additional stimulus, d) Comparing the physiological profile updated with profiles pre-recorded in the database, e) If the physiological profile actuated: - corresponds to a profile pre-recorded in the database, then generating the history on the basis of the additional stimuli of all the cycles, - does not correspond to any pre-recorded profile in the database, then repeating steps a to d with stimuli having different parameters from one cycle to the next, preferably, the user does not knowingly interact with the system upon generating the physiological profile (31).

14. A booth (60) comprising a system (1) according to one of claims 1 to 10, comprising a neuro headset (36) configured to detect at least one brain wave, a user interface (10), a screen (32), and at least the physiological sensor (30) configured to sense the at least two different physiological pieces of data, different from the at least one brain wave sensed by the neuro headset (36).

15. The booth (60) according to the preceding claim comprising a system for diffusion of a perfume by dry diffusion.