FR3113602A1 - adaptive fragrance diffuser - Google Patents

Abstract

The invention relates to a portable diffusion device (1000) configured so as to be carried by a user, the device comprising: - a body (300) containing a reservoir (320); - a selected perfume placed inside the tank; - a diffuser configured to diffuse the selected fragrance from the reservoir; - a plurality of sensors (340) configured to acquire user data; and - a controller configured so as to activate the diffuser, according to the data received from the plurality of sensors. Figure for abstract: Figure 1

Description

adaptive fragrance diffuser

SUMMARY

This summary makes it possible to present a choice of concepts in simplified form, described later in the detailed description. This summary is not intended to identify the main features of the claimed subject matter, nor to serve as an aid in determining the domain of the claimed subject matter.

Human beings are notorious for not recognizing their own body odor or scent. This is due to the phenomenon called “olfactory adaptation”. Humans eventually become desensitized to a scent if exposed to it for any length of time, even the most intense scents can seem normal and neutral to them. However, when a new person perceives a scent or smell to which a person has become insensitive, the intensity of this smell is perceived by him as high.

In one embodiment, a portable broadcast device is configured to be carried by a user. The device comprises: a body incorporating a reservoir; a selected perfume placed inside the tank; a diffuser configured to diffuse the selected fragrance from the reservoir; a plurality of sensors configured to acquire data relating to the user; and a controller configured to activate the diffuser based on data received from the plurality of sensors.

In another embodiment, the system also includes an intelligent device that communicates with the controller.

In one embodiment, the reservoir is configured to contain a fragrance cartridge. In another embodiment, the selected perfume is placed directly in the reservoir. In another embodiment, the selected perfume is solid.

In one embodiment, the plurality of sensors includes at least an accelerometer, an altimeter, a humidity sensor, a heart rate monitor, a thermometer, and a GPS (global positioning system) sensor.

In one embodiment, the diffuser is a solenoid operated sprayer. In another embodiment, the diffuser is a vent.

In one embodiment, the device includes a plurality of levers, configured to adjust the fragrance notes of the selected fragrance.

In one embodiment, the device also includes a heating element for heating the selected fragrance.

In another embodiment, the device also includes an attachment mechanism for carrying the device.

In one embodiment, a diffusion device for adjusting a user's personal scent includes: a plurality of sensors configured to generate data based on the user's scent or environment; and a controller having non-volatile computer memory with instructions which, when executed, cause the diffuser to release a selected fragrance.

In one embodiment, the system also includes an intelligent device communicatively coupled to the controller, wherein the intelligent device is configured to issue instructions to the controller.

In one embodiment, the streaming device is a first streaming device attached to a first location on the user, the system further comprising a second streaming device attached to a second location on the user.

In one embodiment, the smart device is a smartphone or a smartwatch.

In one embodiment, the plurality of sensors are configured to actively monitor the user, and alert the user when fragrance levels fall below a target level.

In one embodiment, the plurality of sensors includes a temperature sensor. In one embodiment, the plurality of sensors includes a humidity sensor. In another embodiment, the plurality of sensors includes a scent sensor. In another embodiment, the plurality of sensors includes an altimeter.

In one embodiment, data from the plurality of sensors is collected over a period spanning more than one day.

In one embodiment, a portable diffuser device includes: a fragrance unit including a processing circuit operatively coupled to a plurality of sensors and at least one fragrance diffuser; and the plurality of sensors being configured to acquire data about the user. The scent unit is configured to activate at least one scent diffuser based on a comparison between data received from the plurality of sensors and a user-specific target condition.

In one embodiment, at least one of the plurality of sensors includes a sweat sensor, and the scent unit is configured to activate at least one scent diffuser based on a comparison indicative of a change of the state of sweat.

In one embodiment, at least one of the plurality of sensors includes a capacitive sensor, and the fragrance unit is configured to activate at least one fragrance diffuser based on a comparison indicative of a change in the capacity value.

In one embodiment, at least one of the plurality of sensors includes a chemical sensor, and the fragrance unit is configured to activate at least one fragrance diffuser based on a comparison indicative of a change in electrolyte or metabolite concentrations.

In another embodiment, at least one of the plurality of sensors includes a humidity sensor, and the scent unit is configured to activate at least one scent diffuser based on a comparison indicative of a change in the state of sweat.

In another embodiment, the scent unit is configured to activate at least one scent diffuser based on a comparison indicative of a change in ionic strength.

In one embodiment, the scent unit is configured to activate at least one scent diffuser based on a comparison indicative of changing electrolyte concentrations or metabolites.

In one embodiment, at least one of the plurality of sensors includes a skin pH sensor, and the fragrance unit is configured to activate at least one fragrance diffuser based on a comparison indicative of a change in the pH value of the skin.

In one embodiment, at least one of the plurality of sensors includes an electronic nose (e-nose), and the scent unit is configured to activate at least one scent diffuser based on an indicative comparison a change in a component of sweat.

DESCRIPTION OF DRAWINGS

The following detailed descriptions, together with the accompanying drawings, will make it easier to understand the above aspects and the majority of the advantages which flow from this invention, in which:

There is an isometric view of an example of a diffusion device according to an embodiment of the current technology;

[Fig 2] The is a front view of an exemplary broadcast device according to one embodiment of current technology;

There is a partial schematic front view of an example of a broadcast device according to an embodiment of the current technology;

There is a schematic diagram of the rear of an exemplary broadcast device according to one embodiment of current technology;

There is a schematic diagram of an exemplary fragrance cartridge according to one embodiment of current technology;

There is one embodiment of broadcast devices communicatively coupled to an intelligent device according to one embodiment of current technology;

There is an embodiment of an interaction between a subject and an intelligent device to adaptively control personal scent according to an embodiment of current technology;

There is an embodiment of a smart device/subject interface for alerting the subject according to one embodiment of current technology;

There is an embodiment of a smart device/subject interface for adjusting personal scent according to an embodiment of current technology;

There is a graph of an example of the subject's personal scent during the day in the absence of current technology; And

There is a graph of an example of the subject's personal scent using the adaptive scent diffuser according to one embodiment of current technology.

DETAILED DESCRIPTION

Although preferred embodiments of the inventive technology have been illustrated and described, it will be appreciated that several modifications may be made thereto without departing from the spirit and scope of the invention.

In some embodiments, a broadcast device 1000 is communicatively coupled to an intelligent device. The Streamer 1000 includes a 340 sensor to monitor multiple data streams, i.e. user's heart rate, humidity, weather, location, etc. For example, diffuser 1000 includes an accelerometer 341, altimeter 342, humidity sensor 343, heart rate monitor 344, and thermometer 345. Diffuser 1000 also includes a reservoir 320 for a fragrance selected from a fragrance cartridge 410. In operation, the sensors on the diffuser device 1000 transmit data to the smart device. The intelligent device then processes the data and alerts the subject when it is necessary to proceed to a new application of the selected perfume diffused by the diffusion device 1000.

There is an isometric view of an exemplary broadcast device according to one embodiment of current technology. The diffuser device 1000 includes a body 300, a reservoir 320, and a plurality of sensors 340. In the illustrated embodiment, a perfume cartridge 410 is stored in the reservoir 320. In other embodiments, a perfume 400 can be stored directly in reservoir 320. In some embodiments, levers 420 are present on body 300 of delivery device 1000. Levers 420 on body 300 of delivery device 1000 can be operated by a subject 500, in order to control the dosage and release rate of certain fragrance notes of the selected 400 fragrance, i.e. perfume body, floral notes, etc.

For simplicity, five sensors are shown on the . In different embodiments, the broadcast device may include more or fewer sensors. In some embodiments, sensors 340 are all placed on body 300 of broadcaster 1000. In other embodiments, only some of the plurality of sensors 340 are placed on body 300 of broadcaster 1000, while some sensors are supported by an intelligent device 2000 (not illustrated on the ). In some embodiments, broadcast device 1000 includes at least one accelerometer 341, altimeter 342, humidity sensor 343, heart rate monitor 344, and/or thermometer 345. Further, in some embodiments , there may be various sensors on the body 300 of the broadcaster 1000 in addition to or instead of those illustrated in the . A non-exhaustive list of other sensors 340 includes a volatile compound sensor, an odor level sensor, a sweat sensor, a location sensor (eg, global positioning system (GPS)), and the like. In some embodiments, a GPS sensor may be used to gather information about the relative humidity of the location. In other embodiments, location information obtained from GPS may be used as an indicator for cultural norms of scent.

Broadcaster 1000 is communicatively coupled to smart device 2000 (eg, wireless). In operation, the plurality of sensors 340 on the broadcast device 1000 provide data streams to a smart device 2000. The smart device 2000 may also have a plurality of sensors 340 on it. The plurality of sensors 340 on smart device 2000 may also provide multiple streams of data to smart device 2000.

A subject (user) may insert a scent cartridge 410 containing their selected scent 400 into reservoir 320. In some embodiments, the subject may set a desired level (target) of scent to be maintained. In some embodiments, the smart device 2000 may also collect data from a plurality of sensors 340 and recommend an optimal level of fragrance. The smart device can alert a subject 500 when the scent level drops below a set target level. Further, the smart device may generate the release rate and dosage of the selected fragrance 400 to match the target level.

On the , the smart device 2000 is shown in the form of a mobile phone, whereas in other examples the smart device 2000 takes the form of any other computing device such as a connected watch, a tablet, or any other device similar.

Broadcaster 1000 may be communicatively coupled to smart device 2000 via a wireless connection. In other embodiments, the wireless connection is a direct wireless connection, such as a Bluetooth connection, a NFC (near field communication) connection, a direct Wi-Fi connection, or any other direct wireless connection. . In some embodiments, the wireless connection is an indirect connection through one or more wireless networks, such as a cellular network (eg, 4G, LTE), a Wi-Fi network, a local area network, any other network, or any combination thereof. In some embodiments, the wireless connection allows streaming device 1000 to be located remotely from smart device 2000.

In some embodiments, smart device 2000 stores data generated by the plurality of sensors 340 on broadcast device 1000 and smart device 2000 for a period of more than one day. The smart device 2000 can use this data to analyze trends in the subject's individual scent levels.

There is a schematic diagram of an exemplary diffuser device 1000. The diffuser device 1000 includes a body 300, a reservoir 320 with a fragrance cartridge 410 inside thereof, a plurality of sensors 340, a diffuser 330, and a plurality of levers 420. In some embodiments, sensors 340 include at least one accelerometer 341, altimeter 342, humidity sensor 343, heart rate monitor 344, and/or thermometer 345. These sensors can be, for example, capacitive (for example, if the readings are based on a change in the value of the electrical capacity), chemical (for example, if the readings indicate a change in electrolyte, metabolite or ionic concentrations) , skin pH, mechanical, or otherwise. In some embodiments, sensors 340 may constitute an "e-nose" that indicates a change in a component of sweat (e.g., isovaleric acid, or a volatile steroid such as androstenone, androstadienone, androstenol, and the like) .

The perfume cartridge 410 contains a selected perfume 400. In some embodiments, the selected perfume 400 is solid. In other embodiments, the selected flavor 400 is liquid.

Scent cartridge 410 is configured so that it can fit into reservoir 320 and connect to diffuser 330. When a subject interacts with a smart device 2000, a diffuser 330 releases the selected scent 400 in an amount necessary to achieve a target level of fragrance. In some embodiments, diffuser 330 is a solenoid controlled sprayer, controlled vent or other fragrance release mechanism.

There is a schematic diagram of a cross-section of an example broadcast device 1000 according to current technology. The exemplary diffuser device 1000 includes a body 300, and a fragrance cartridge 410 inside a reservoir 320 attached to a diffuser 330. The body 300 of the diffuser device 1000 includes a controller 350, a heating element 430, and a battery 440, sensors 340, and levers 420. The smart device 2000, communicatively coupled to a controller 350 in the delivery device 1000, can command the controller 350 to release the selected scent to wait for the level target, depending on the choice of subject 500. In other embodiments, controller 350 (e.g., CPU, digital controller, analog controller, etc.) may be included in intelligent device 2000.

In some embodiments, controller 350 can receive data from sensors 340, process the data, and send instructions to broadcaster 330. Therefore, in some embodiments, broadcaster 1000 can also function as an intelligent device. , requiring no separate smart device to release the fragrance through the diffuser 330.

In some embodiments, the selected fragrance 400 within the fragrance cartridge 410 is solid phase. In operation, a heating element 430 within the diffuser device 1000 can heat the solid selected perfume 400 in a liquid or gaseous phase. In some embodiments, heating element 430 is an electric heating element. In other embodiments, the heating element may include an infrared radiation source. In some embodiments, the electrical heating element is powered by one or more batteries 440. In some embodiments, the selected solid fragrance 400 is heated by the heating element 430 into a volatile state that can diffuse into a diffuser. vented 330.

In some embodiments, controller 350 and diffuser 330 are powered by battery 440. In one embodiment, battery 440 is a rechargeable battery configured to receive electrical power from an external source, when, for For example, the electric potential of the rechargeable battery 440 has been exhausted. In other embodiments, battery 440 is a single-use battery.

There is a schematic diagram of the rear face of an example of broadcast device 1000 according to current technology. Broadcaster 1000 includes a body 300 with levers 420, a plurality of sensors 340, and an attachment mechanism 310. In the illustrated embodiment, the attachment mechanism 310 is a clip for attachment to clothing, e.g. by clipping the device 1000 onto a pocket. In other embodiments, attachment mechanism 310 may be attached to a subject in some other manner, such as with a magnet, by sewing delivery device 1000 inside the garment, and the like.

In operation, streamer 1000 may remain attached to the subject's clothing throughout the day, while sensors 340 on streamer 1000 collect data, which is sent to smart device 2000. In some embodiments, the subject wears multiple broadcast devices, so that the sensors 340 can collect data from multiple locations on the subject.

There is an example of a 410 fragrance cartridge according to current technology. In some embodiments, the selected scent 400 is placed directly into the reservoir 320 of the diffuser device 1000, in other embodiments the selected scent 400 is contained in a scent cartridge 410. The scent cartridge 410 can be pre-loaded with the selected fragrance 400 and may contain information encoded in, for example, non-volatile computer memory, to assess the amount of fragrance 410 contained therein, the fragrance of the fragrance cartridge 410, and/or the strength or dosage appropriate for a given scent 400. In some embodiments, a subject 500 has an empty scent cartridge 410 and fills it with a selected scent of their choice.

In some embodiments, throughout the day, the smart device 2000 alerts the subject 500 to release more of the selected scent 400 to achieve a target scent. In some embodiments, smart device 2000 also alerts subject 500 when scent cartridge 410 is low and/or empty.

In some embodiments, subject 500 disposes of an empty scent cartridge 410 and replaces it with a new scent cartridge 410 containing the same or a different selected scent 400. In other embodiments, subject 500 fills empty scent cartridge 410 with the same or a different selected scent 400. In some embodiments, subject 500 may mix multiple selected scents 400 in a single scent cartridge 410 to customize their scent.

There is an example of a broadcast device 1000 communicatively coupled to an intelligent device 2000. In some embodiments, a subject 500 has multiple wearable broadcast devices 1000 worn by his body at different locations. Broadcasters 1000 can communicate with smart device 2000 via a wireless connection, as explained above.

For simplicity, two broadcast devices 1000 are illustrated, but in other embodiments, additional devices may be communicatively coupled to intelligent device 2000. In operation, each broadcast device 1000 may collect data independent of its respective sensors 340. The diffusion devices 1000 can be controlled by the smart device 2000 by means of a controller 350 in order to diffuse the perfumes with the same dosage and intensity, or with different dosages and intensities to maintain the desired perfume. a subject 500. In some embodiments, controller 350 is included in smart device 2000. In operation, controller 350 may wirelessly send instructions to distributor 330 on broadcast device 1000. In some embodiments, a subject 500 can insert a different selected scent 400 into each diff device fusion 1000 to further customize its desired scent. In some embodiments, the plurality of sensors 340 are identical on each streamer 1000. In other embodiments, the streamer devices 1000 include different sets of sensors 340.

The smart device 2000 can record data generated by the plurality of sensors 340 from each broadcast device 1000, separately or as a group. In some embodiments, smart device 200 stores data generated by each broadcast device 1000 for a predetermined period of time, such as more than a day. The recorded data can be used to analyze the subject's 500 personalized scent levels and preferences. The recorded data can also be used to algorithmically predict when the selected scent 400 should be released to best suit the body and lifestyle. of subject 500. The recorded data may also be used to provide recommendations to subject 500 on his or her desired scent levels.

There illustrates an example of interaction between a subject 500 and a smart device 2000. The subject 500 may be alerted by the smart device 2000 when their scent levels are below the target scent level. The subject can then choose to diffuse or re-diffuse their selected fragrance 400 from the diffusion device 1000. The smart device 2000 can also alert the subject 500 regarding other states, such as when the selected fragrance level 400 of the 410 fragrance cartridge is low or the cartridge is empty.

There is an example interface of the smart device 2000 alerting a subject 500 when the scent level is below the target level. For simplicity, the interface has been represented as an alert icon with a circular button allowing the subject to adjust their personal scent. In other embodiments, the interface may have different icons or commands directed to subject 500. Using the plurality of sensors 340 on broadcast device 1000 and smart device 2000, smart device 2000 alerts subject 500 of a new condition and grants subject 500 the ability to correct their scent level. For example, smart device 2000 alerts subject 500 when subject 500's scent level has fallen below desired or preconfigured scent levels.

There illustrates an example interface that allows a subject 500 to control their scent levels according to current technology. In operation, the smart device 2000 receives and analyzes data from the plurality of sensors 430 on the delivery device 1000. The subject 500 can then choose the amount of selected fragrance 400 to deliver, or the subject can decide to comply with a recommendation given by the smart device 2000. In some embodiments, after the subject commands the smart device 2000 to release a greater amount of selected fragrance 400, the smart device 2000 sends instructions to a controller 350 of the device diffusion device 2000 via a wireless connection, and the controller 350 controls the diffusion device 1000 so as to diffuse the selected perfume 400. The controller 350 can integrate a non-volatile memory to store instructions therein, which, once executed, causes the diffusion of the selected perfume 400.

Figures 7A-7B are example graphs illustrating how a subject's personal scent changes over the course of a day, respectively without and with the inventive technology. The horizontal axis indicates the hours. The vertical axis indicates the intensity of the fragrance. The area below the horizontal axis represents a bad or unpleasant scent. The line below the horizontal hour axis (“perceivable odor”) defines the point at which the intensity of an unpleasant odor is perceptible to others. The area above the horizontal hour axis represents a good scent or a “clean” scent. The area directly above the horizontal axis indicates the "sweet spot zone" where a subject's personal scent is pleasant, but not predominant. The area above the ideal scent zone represents an area where a subject's personal scent is pleasant, but predominant, such as when a subject applies too much perfume or cologne.

Examples of daily events occurring during the day are represented by the letters A-I. These examples of events are: (A) the subject showering, (B) the subject applying cologne or perfume, (C) light physical activity, (D) climatic factors such as high temperature and high humidity which affect the subject's personal scent, (E) large meeting, (F) gathering, (G) moderate physical activity, (H) intense physical activity, and (I) return to the subject's house by means of transport. These events illustrate a wide range of activities that may affect a subject's personal scent, but are not exhaustive, and may occur at any time of the day, not at all, or in addition to other events. .

There is an example graph of the intensity of a subject's personal odor during a typical day without the invention technology. Initially, the subject takes a morning shower (A). This activity places the subject's scent in the ideal scent zone. Then the subject applies perfume or cologne (B) from a conventional bottle. The subject's scent then shifts to a predominant level. Conventional methods of applying perfume and cologne do not take into account a subject's personal needs and provide no convenient way to adjust the amount of perfume to be applied. When the subject performs light physical activity (C), the usual perfume or cologne that he applied to himself maintains his personal perfume in the zone of ideal perfume. However, external factors beyond the subject's control, in this case (D) high temperature or high humidity, drive the subject's personal odor into the malodor zone. When the subject participates in a large meeting (E), a gathering (F), and moderate physical activity (G), his scent levels remain in the bad smell zone, but without it still being perceptible by others. Finally, when the subject participates in intense physical activity (H), and returns home using a means of transport (I), the subject's scent enters the zone of perceptible and unpleasant scents.

As mentioned above, the olfactory adaptation of human beings makes users insensitive or at least less sensitive to their own body odor if exposed to it for a period of time. Even if the subject were to apply conventional perfume or cologne at any time after (B) during the day taken as an example above (reapplication not shown on ), the subject would not know the most opportune moment of application of his selected perfume, the intensity of perfume to be applied, or the external factors (namely high temperature or humidity) and internal factors (namely the frequency heart rate and baseline scent levels) that could affect their personal scent levels.

There is a graph of a subject's personal scent intensity (also called scent intensity) during a typical day with the invention technology. In the illustrated embodiment, the subject takes a morning shower (A), which places their odor levels in the ideal scent zone. Instead of applying a usual perfume or cologne, the subject activates the inventive system at (B). As the subject begins their day, the system maintains the subject's scent within its ideal scent zone, based, at least in part, on the activity performed by the subject, and external or internal factors that affect the personal scent of a subject. By alerting the subject to their personal scent, the subject can adjust an optimal scent level to achieve throughout the day, even if the subject does not notice their own scent.

Many embodiments of the technology described above may take the form of computer or controller executable instructions, including common procedures executed by a computer or programmable controller. Those skilled in the art will understand that the technology can be applied to computer/control systems other than those illustrated and described above. The technology may be engineered into a specialized computer, controller, or data processor specially programmed, configured, or manufactured to be able to execute one or more of the computer-executable instructions described above. Accordingly, the terms "computer" and "controller" generally used herein refer to any data processor, and may include internet equipment and portable devices (including handheld computers, laptops, mobile phones, multiprocessor systems, electronic devices processor-based or programmable consumer, network computers, microcomputers and the like).

In view of the foregoing, it will be understood that the embodiments of the technology have been described herein for illustrative purposes only, but that several modifications may be made without departing from the disclosure. For example, in some embodiments, the counter or controller may be based on a low power buck regulator connected to a capacitor. Further, while several benefits and features associated with certain embodiments have been described above in the context of those embodiments, other embodiments may also have such benefits and/or features. , and not all embodiments must have such advantages and/or features in order to fall within the scope of the technology. Accordingly, the disclosure may encompass other embodiments not expressly illustrated or described herein.

The present invention may also refer to quantities and numbers. Unless otherwise indicated, these quantities and numbers are not to be construed as binding, but are given as examples of quantities or numbers associated with the present invention. In this sense also, the present invention may use the term "plurality" to refer to a quantity or a number. For this purpose, the term "plurality" means any number greater than one, for example, two, three, four, five, etc. The term "approximately" means a given value with an accuracy of plus or minus 5%.

The principles, exemplary embodiments, and modes of operation of the present disclosure have been described in the foregoing description. However, those aspects of this disclosure which are intended to be protected should not be construed as being limited to particular embodiments of the invention. Further, the described embodiments should be considered illustrative rather than restrictive. It will be understood that variations and modifications may be made by others, and equivalents used, without departing from the spirit of this disclosure. Accordingly, it is expressly intended that such variations, modifications and equivalents be within the spirit and scope of this disclosure.

Claims (10)

A portable broadcast device (1000) configured to be wearable by a user, the device comprising:
- a body (300) containing a reservoir (320);
- a perfume (400) selected placed inside the tank;
- a diffuser (330) configured to diffuse the selected perfume from the reservoir;
- a plurality of sensors (340) configured to acquire user data; And
- a controller (350) configured to activate the diffuser, according to the data received from the plurality of sensors. A diffuser device according to claim 1, wherein the reservoir (320) is configured to contain a fragrance cartridge (410). A broadcast device according to claim 1, wherein the plurality of sensors (340) includes at least one accelerometer (341), altimeter (342), humidity sensor (343), heart rate monitor (344), a thermometer (345), or a GPS (global positioning system) sensor. A broadcast device (1000) according to claim 1, wherein:
the plurality of sensors (340) are configured to generate a database of the user's scent or environment; And
the controller (350) has non-volatile computer memory with instructions which, when executed, cause the diffuser to release a selected fragrance;
wherein the plurality of sensors are configured to actively monitor and alert the user when fragrance levels (400) fall below a target level. A system comprising the broadcast device (1000) of claim 4, the system further comprising an intelligent device (2000) communicatively coupled to the controller (350), wherein the intelligent device is configured to issue instructions to the controller. The system of claim 4, wherein the streaming device (1000) is a first streaming device attached to a first location on the user, the system further comprising a second streaming device attached to a second location on the user . A portable broadcast device (1000) according to claim 1, comprising:
a scent unit including processing circuitry operatively coupled to the plurality of sensors (340) and the scent diffuser (330); And
the plurality of sensors being configured to acquire data about the user;
wherein the scent unit is configured to activate the scent diffuser based on a comparison between data received from the plurality of sensors and a user-specific target condition;
wherein at least one of the plurality of sensors (340) includes a sweat sensor, and the fragrance unit is configured to activate the fragrance diffuser based on a comparison indicative of a change in sweat condition. A portable diffuser device according to claim 7, wherein at least one of the plurality of sensors (340) comprises a capacitive sensor, and the fragrance unit is configured to activate the fragrance diffuser (330) based on a comparison indicative of a change in the capacitance value; Or
wherein at least one of the plurality of sensors (340) includes a chemical sensor, and the fragrance unit is configured to activate the fragrance diffuser based on a comparison indicative of a change in electrolyte concentrations or metabolites; Or
wherein at least one of the plurality of sensors (340) includes a humidity sensor, and the fragrance unit is configured to activate the fragrance diffuser based on a comparison indicative of a change in the state of sweat. A portable diffuser device according to claim 7, wherein at least one of the plurality of sensors (340) comprises a skin pH sensor, and the fragrance unit is configured to activate the fragrance diffuser (330) based on a comparison indicative of a change in the pH value of the skin; Or
wherein at least one of the plurality of sensors (340) includes an electronic nose (e-nose), and the fragrance unit is configured to activate the fragrance diffuser based on a comparison indicative of a change in a component of sweat. A portable diffuser device according to claim 7, wherein the fragrance unit is configured to activate the fragrance diffuser (330) based on a comparison indicative of a change in ionic concentration; or wherein the fragrance unit is configured to activate the fragrance diffuser (330) based on a comparison indicative of changing electrolyte concentrations or metabolites.