JP7023797B2 - Fragrance system - Google Patents

Description

The present invention relates to a technique for supplying aroma.

As a technology for supplying fragrance, the type and concentration of fragrance emitted into the vehicle interior are controlled so that the driver's arousal is maintained according to the degree of arousal of the driver of the vehicle detected by using an electroencephalograph. (Patent Document 1).

Japanese Unexamined Patent Publication No. 11-278048

The degree to which the same fragrance contributes to the awakening of the driver varies from individual to individual, and even for the same individual, it varies depending on the physical condition and other conditions at that time.
Therefore, it is not possible to reliably maintain the driver's awakening state only by controlling the type and concentration of the aroma emitted into the vehicle interior according to the degree of the driver's awakening as in the above-mentioned technique.

Therefore, it is an object of the present invention to provide an fragrance system that supplies fragrance so that the state of the subject can be maintained in a target state with high reliability.

In order to achieve the above-mentioned task, the present invention provides an fragrance system that supplies an fragrance having an effect of making a target state, which is a state related to the subject's emotions or physiology, into a desired state. A detection means for detecting deviation from a desired state, a fragrance emitting means for selectively emitting a plurality of different fragrances that can be expected to have an effect of making the target state into a desired state, and a control for causing the fragrance emitting means to emit fragrance. It is equipped with means. Here, when the detection means detects the deviation, the control means is in the case where the elapsed time from the previous release of the fragrance to the fragrance emitting means is shorter than the first time, which is a predetermined time. Discharges a fragrance different from the fragrance previously released to the fragrance releasing means to the fragrance releasing means, and if it is not shorter than the first time, the same fragrance as the fragrance previously released to the fragrance releasing means is released. Let the release means release.

According to such an fragrance system, when the elapsed time from the time of the previous fragrance emission until the deviation detection of the subject's target state from the desired state is short, the fragrance different from the previous one is emitted and the deviation is detected. When the elapsed time is not short, the same fragrance as the previous one is released.

Here, when the elapsed time from the time of the previous release of the fragrance to the detection of deviation is short, it is considered that the effect of the previously released fragrance was insufficient, and the time elapsed from the time of the previous release of the fragrance is not short. Occasionally, it is believed that the previously released aroma was effective.

Therefore, according to the present invention, it is possible to emit an fragrance that has the effect of truly setting the target state of the subject to the desired state, and the target state of the subject can be maintained in the desired state with high reliability.
Here, in such an fragrance system, when the elapsed time is shorter than the first time in the control means, the elapsed time is longer than the time length of the period during which the fragrance is released to the fragrance releasing means. The fragrance emitting means is used so that the period of time for releasing the fragrance to the fragrance emitting means is shortened when the time is shorter than the second time, which is longer than the first time, and not shorter than the first time. It may be configured to emit aroma.

By doing so, when the same fragrance is repeatedly released, it is possible to prevent the subject from becoming accustomed to the fragrance and reducing the effect of the fragrance in the desired state. ..

Further, in this case, in the control means, when the elapsed time is not shorter than the second time, the elapsed time is longer than the time length of the period during which the fragrance is released by the fragrance releasing means. Even if it is configured to release the fragrance to the preceding fragrance emitting means so that the time length of the period for releasing the fragrance to the fragrance emitting means is shortened when it is shorter than the time of 2 and not shorter than the first time. good.

Further, in the above fragrance system, the target state is set to a drowsiness state, the desired state is set to a state in which drowsiness is eliminated, and the fragrance releasing means is used to provide a plurality of different fragrances that are expected to have an effect of eliminating drowsiness. It may be selectively released, and the detection means may detect the occurrence of drowsiness of the subject as the deviation.

Further, in the above fragrance system, the fragrance emitting means may emit fragrance into the interior of the automobile, and the subject may be the driver of the automobile.

As described above, according to the present invention, it is possible to provide an fragrance system that supplies fragrance so that the state of the subject can be maintained in the target state with high reliability.

It is a block diagram which shows the structure of the fragrance system which concerns on embodiment of this invention. It is a figure which shows the arrangement of the fragrance system which concerns on embodiment of this invention. It is a figure which shows the release history table which concerns on embodiment of this invention. It is a flowchart which shows the emission control process which concerns on embodiment of this invention. It is a figure which shows the processing example of the emission control processing which concerns on embodiment of this invention.

Hereinafter, embodiments of the fragrance system of the present invention will be described by taking as an example an application to an fragrance system for eliminating drowsiness of a driver of an automobile.
FIG. 1 shows the configuration of the fragrance system according to the first embodiment.
As shown in the figure, the fragrance system includes an fragrance device 1, a control device 2, and one or a plurality of biosensors 3 that output biometric information of the driver.
As shown in FIG. 2, the fragrance device 1 is a device that can be used by being placed on, for example, a cup holder of an automobile.
Further, the fragrance device 1 includes a tank of a plurality of fragrance solution solutions having different fragrances, which are effective in eliminating drowsiness. Each fragrance is ordered, and the fragrance device 1 controls the control device 2 to steam or atomize the fragrance solution of the fragrance in the order requested to be released from the control device 2 and spray and diffuse the fragrance. Therefore, the fragrance can be released into the vehicle interior.
As the fragrance effective for eliminating drowsiness, fragrances such as lemon, peppermint, rosemary, eucalyptus, and juniper can be used.

Further, the biosensor 3 measures the driver's brain wave and outputs it as biometric information, such as a brain wave meter 31 attached to the driver's head, a camera 32 that captures the driver's face and outputs it as biometric information, and the like. A sensor 33 attached to the driver's arm that measures the driver's pulse and body temperature and outputs it as biometric information, and a sensor 34 embedded in the driver's seat that measures the driver's breathing and heartbeat and outputs it as biometric information. And so on.

Next, the control device 2 is a device mounted on an automobile, and the control device 2 can communicate with each biosensor 3 and the fragrance device 1 via short-range wireless communication. However, the control device 2 may be a device carried by a driver such as a smartphone or a tablet.

Now, returning to FIG. 1, the control device 2 is a short-range wireless communication device 21 that performs short-range wireless communication with the biological sensor 3 and the fragrance device 1, a biological state calculation unit 22, a release history memory 23, and a fragrance of the fragrance device 1. It includes a release control unit 24 that controls the release operation.

In such a configuration of the control device 2, the biological state calculation unit 22 collects biological information output by the biological sensor 3 via the short-range wireless communication device 21, and determines the degree of drowsiness of the driver from the collected biological information. It is calculated, and if the degree of drowsiness exceeds a predetermined level, the driver's drowsiness is detected, and the drowsiness detection is notified to the release control unit 24.

From the biometric information, the degree of drowsiness of the driver is determined by the increase in the power of the α-wave band of the driver's brain wave indicated by the biometric information, the frequency of the driver's blinks obtained from the driver's image collected as biometric information, and the frequency of the driver's blinking. Increased duration, increased slow eye movements obtained from driver images collected as biometric information, lower frequencies of driver's heart rate / pulse rate and respiratory rate fluctuations indicated by biometric information, and biometric information The decrease in the respiratory rate of the indicated driver is evaluated and calculated individually or in combination.

Next, the emission history memory 23 stores an emission history table in which the history of the emission of the fragrance performed in the past by the fragrance device 1 is registered.
FIG. 3 shows this release history table.
As shown in the figure, each row of the emission history table corresponds to each time when the fragrance was emitted in the past by the fragrance device 1, and each row corresponds to the emission start time indicating the start time of the emission performed at the corresponding time. The release end time indicating the end time of the release performed in the corresponding times, the release period indicating the duration of the release performed in the corresponding times, and the released fragrance indicating the order of the fragrances released in the corresponding times are registered.

Hereinafter, the emission control process performed by the emission control unit 24 to control the emission operation of the fragrance of the fragrance device 1 will be described.
FIG. 4 shows the procedure of this emission control process.
As shown in the figure, the emission control unit 24 first sets i to 1 in the emission control process (step 402).
Then, the patient waits for the notification of drowsiness detection from the biological state calculation unit 22 (step 404), and if the notification of drowsiness detection occurs, the release history table is calculated and the fragrance of the fragrance device 1 is within the past 20 minutes. Examine whether or not the release has occurred (step 406).

Then, if the fragrance of the fragrance device 1 has not been released within the past 20 minutes, the i-th fragrance is released to the fragrance device 1 for 5 minutes (step 408).
Then, the history of the release performed this time is registered in the release history table (step 410), and the process returns to step 404 to wait for the next notification of drowsiness detection from the biological state calculation unit 22.
On the other hand, if it is determined in step 406 that the fragrance of the fragrance device 1 has been released within the past 20 minutes, the release history table is calculated and the fragrance of the fragrance device 1 is released within the past 5 minutes. Check if the release is taking place (step 412).

Then, if the fragrance of the fragrance device 1 has not been released within the past 5 minutes, the i-th fragrance is released to the fragrance device 1 for 3 minutes (step 414).
Then, the history of the release performed this time is registered in the release history table (step 410), and the process returns to step 404 to wait for the next notification of drowsiness detection from the biological state calculation unit 22, while in step 412, the past. If it is determined that the fragrance of the fragrance device 1 is released within 5 minutes, change i to i + 1 (step 416), and then change the i-th fragrance to the fragrance device for 5 minutes. Release to 1 (step 418). However, the number of fragrances that can be emitted by the fragrance device 1 is n, and when i = n, i + 1 is 1.

Then, the history of the release performed this time is registered in the release history table (step 410), and the process returns to step 404 to wait for the next notification of drowsiness detection from the biological state calculation unit 22.
The release control process performed by the release control unit 24 has been described above.
According to the release control process performed by the release control unit 24, when the biological state calculation unit 22 detects drowsiness 20 minutes after the previous release of the aroma after the first release of the aroma, the biological state calculation unit 22 detects drowsiness. When the same fragrance as the previous time is released from the fragrance device 1 for 5 minutes and the biological state calculation unit 22 detects drowsiness 5 minutes or 20 minutes after the previous fragrance release, the same fragrance as the previous time is released from the fragrance device 1. When the biological condition calculation unit 22 detects drowsiness 5 minutes before the previous fragrance is released, the fragrance device is different from the previous fragrance, which is ordered after the previous and released fragrance. Released for 1 to 5 minutes.

Here, when the biological state calculation unit 22 detects drowsiness 5 minutes before the release of the previous fragrance, the fragrance different from the previous one is released because the drowsiness is detected again in a short period of time from the previous release. From this, it is considered that the fragrance released last time was less effective in relieving the driver's drowsiness.

Further, it is the operation by the fragrance that shortens the period for releasing the fragrance from 5 minutes to 3 minutes when the biological state calculation unit 22 detects drowsiness 5 minutes after the previous fragrance release and 20 minutes before the lapse. This is to prevent the effect of relieving drowsiness of a person from being reduced. That is, in this case, the same fragrance is repeatedly released at relatively short time intervals. Therefore, unless the period for releasing the fragrance is shortened, the same fragrance always remains, and the driver is concerned. The fragrance becomes accustomed to the driver, and the effect of the fragrance on eliminating drowsiness of the driver is reduced. On the other hand, in this case, if the period for releasing the fragrance is shortened as described above, the occurrence of a state in which the same fragrance always remains is suppressed, the driver is suppressed from becoming accustomed to the fragrance, and the operation by the fragrance is suppressed. It is possible to prevent a decrease in the action of relieving drowsiness of a person.

Next, FIG. 5 shows an example of the emission control process as described above.
Now, as shown in the figure, the driver's drowsiness was detected and the # jth fragrance was released as the drowsiness prevention fragrance for 5 minutes from time t1 to t2, and then the driver's drowsiness was detected again at time t3. In this case, the elapsed time from t2 at the end of the release of the previous fragrance is 3 minutes, which is shorter than 5 minutes. Release for minutes.

That is, here, since the elapsed time from the end of the previous fragrance release until the detection of drowsiness is short, it is judged that the effect of eliminating the drowsiness of the previously released fragrance was insufficient, and the fragrance different from the previous one is released for 5 minutes. do.

After that, when the driver's drowsiness is detected again at time t5, the elapsed time from the previous fragrance emission end time t4 is 10 minutes, which is longer than 5 minutes and shorter than 20 minutes, so that the same # j + as the previous time. The first aroma is released for 3 minutes from t5 to t6.

That is, here, since the elapsed time from the end of the previous release of the aroma until the detection of drowsiness is relatively long, it is determined that the previously released aroma had the effect of eliminating drowsiness, and the same aroma is released. Also, here, the elapsed time from the end of the previous fragrance release until the drowsiness is detected is not long enough for the previously released fragrance to completely disappear from the driver's senses, so that the driver becomes fragrant. As you get used to it, the release period is shortened to 3 minutes so that the drowsiness-relieving effect of the aroma is not lost.

The time of 20 minutes and 5 minutes used in steps 406 and 412 of the above release control process is an example, and the time used in steps 406 and 412 may be other times.
That is, Th1 and Th2 are set as appropriate times for satisfying Th1> Th2, step 406 is set as a step for checking whether or not the fragrance of the fragrance device 1 has been released within the past Th1, and step 412 is set within the past Th2 period. It may be a step of checking whether or not the fragrance of the fragrance device 1 is emitted.

The embodiment of the present invention has been described above.
By the way, the above embodiment has been described by taking as an example an application to an fragrance system that supplies fragrance to a driver of an automobile. However, the fragrance system shown in the present embodiment is an arbitrary indoor space such as a study room or a work room. It can be similarly applied to any fragrance system that supplies fragrance to a subject in the room.

Further, in the above embodiment, the application to the fragrance system that provides the fragrance for relieving drowsiness has been described, but the fragrance system shown in the present embodiment has any emotions of the subject and any physiology of the subject. It can be similarly applied as an fragrance system that uses a target state as a target state, eliminates the target state, or provides an fragrance that maintains the target state.

That is, for example, the present embodiment can be similarly applied as an fragrance system that supplies a fragrance that eliminates the target state by targeting a feeling of fatigue, stress, irritability, or fatigue. In this case, the biological state calculation unit 22 detects the occurrence of the target state from the biological information output by the biological sensor 3 and notifies the release control unit 24 of the target event detection, and the release control unit 24 The release control process shall be performed using the target event detection instead of the drowsiness detection, and the release device shall release a plurality of different fragrances effective in eliminating the target state.

Further, for example, the present embodiment can be similarly applied as an fragrance system that supplies an fragrance that maintains the target state, targeting a concentrated state, a feeling of cheerfulness, and relaxation. In this case, the biological state calculation unit 22 detects the loss or deterioration of the target state from the biological information output by the biological sensor 3 and notifies the control device 2 of the target event detection, and the release control unit. In 24, the target event detection is used instead of the drowsiness detection to perform the emission control process, and the release device is intended to emit a plurality of different fragrances that are effective in maintaining the target state.

Further, in the above embodiment, the control device 2 is provided separately from the release device, but this integrates the function of the control device 2 into the release device without providing the control device 2 separately from the release device. You may do so.

1 ... Fragrance device, 2 ... Control device, 3 ... Biological sensor, 21 ... Short-range wireless communication device, 22 ... Biological state calculation unit, 23 ... Emission history memory, 24 ... Emission control unit, 31 ... EEG meter, 32 ... Camera , 33 ... Sensor.

Claims (4)

An fragrance system that supplies an fragrance that has the effect of making a target state, which is a state related to the subject's emotions or physiology, into a desired state.
A detection means for detecting the deviation of the target state from the desired state of the target person, and
An aroma emitting means for selectively emitting a plurality of different aromas that can be expected to have an effect of making the target state a desired state,
The fragrance emitting means has a control means for emitting fragrance.
When the detection means detects the deviation, the control means means that the elapsed time from the end time of the previous fragrance emission of the fragrance emitting means is shorter than the first time, which is a predetermined time. The fragrance different from the fragrance released to the fragrance releasing means last time is released to the fragrance releasing means, and if it is not shorter than the first time, the same fragrance as the fragrance released to the fragrance releasing means last time is released. Let the means release and
When the elapsed time is shorter than the first time, the control means has a longer elapsed time than the first time, which is longer than the time length of the period for causing the aroma releasing means to release the fragrance. The fragrance is characterized by causing the fragrance emitting means to release the fragrance so that the time length of the period during which the fragrance is released to the fragrance emitting means is shortened when the time is shorter than the second time and not shorter than the first time. system. The fragrance system according to claim 1.
In the control means, the elapsed time is shorter than the second time and the elapsed time is shorter than the time length of the period for causing the aroma releasing means to release the fragrance when the elapsed time is not shorter than the second time. A fragrance system comprising releasing fragrance to the preceding fragrance emitting means so that the length of the period during which the fragrance is released to the fragrance emitting means is shortened when the time is not shorter than the time. The fragrance system according to claim 1 or 2.
The target state is a drowsiness state.
The desired state is a state in which drowsiness is eliminated.
The aroma releasing means selectively releases a plurality of different aromas that are expected to have an effect of eliminating drowsiness.
The detection means is an fragrance system characterized in that the occurrence of drowsiness of a subject is detected as the deviation. The fragrance system according to claim 1, 2 or 3.
The fragrance emitting means emits fragrance into the interior of an automobile.
The fragrance system, characterized in that the subject is the driver of the automobile.

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