JPH0632144A - Aroma emission controller - Google Patents

Abstract

PURPOSE:To enable the one-touch replacement of an aromatic effective for prevention of sleepiness by controlling the supply quantity of aroma of an aromatic being selected from fuzzy inference, using the membership function sought from the sense evaluation, based on the degree, etc., of sleepiness. CONSTITUTION:A setter 1 is composed of volumes 11 and 12 wherein the degrees of sleepiness and fatigue are to be set by a user, a start switch 13 for a controller 2, and an individual difference correcting volume 14. Moreover, the controller 2 is composed of a storage memory 21 for the membership function sought from the sense evaluation of a subject, the first circuit 22 for seeking the suitability between this and the setting level, the second circuit 23 for outputting an output value by performing fuzzy inference by the membership function pertaining to an aroma supply circuit, based on the sought suitability, a clock oscillator 24, and a counter circuit 25. By this output, the motor 32 of an axial flow fan 34 is to be controlled via a current amplifier 31, and the quantity of aroma from a supply port is to be decided. Accordingly, the selection of an aromatic corresponding to the degree of sleepiness and the supply of a proper amount can be done.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aroma control device used in a vehicle interior or other spaces.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Unexamined Patent Publication No. 2-225125, there is a scent generator that enjoys different fragrances by arbitrarily controlling the opening / closing of a storage part containing different fragrances. there were.

[0003]

The conventional device merely enjoys different fragrances by arbitrarily controlling the opening / closing of the storage part in which different fragrances are stored, which may cause fatigue or drowsiness of the user. The supply amount of aroma was not controlled according to the degree or the sensitivity of the user to aroma and the required level of aroma.

Therefore, the inventors of the present invention obtain the amount of aroma to be supplied by performing fuzzy inference using a membership function previously obtained from sensory evaluation based on the degree of fatigue or drowsiness of the user and the required level. As a result of further research and development, focusing on the technical idea, we realized the supply of an amount of fragrance according to the degree of fatigue or drowsiness of the user, which is relatively ambiguous, and the required level of fragrance, as well as recovery from fatigue or prevention of drowsiness. The present invention has been achieved to realize the purpose of being able to freely exchange and use an effective aromatic fragrance agent with one touch.

[0005]

The aroma control device of the present invention (the first invention according to claim 1) includes a setting device for setting at least a set amount related to the degree of drowsiness, and a sensory function of a plurality of subjects. Based on the membership functions of the input part and the output part obtained from the evaluation, fuzzy inference is performed based on the set amount, and the controller that calculates the control signal for supplying the aroma supply amount suitable for the set amount and the controller selected by the user And an air blowing means for supplying the fragrance of the fragrance in an amount based on the control signal.

The aroma control device of the present invention (the second invention according to claim 2) is a setting device for setting the degree of drowsiness and fatigue, and the degree of drowsiness and fatigue obtained from sensory evaluations of a plurality of subjects. A fuzzy inference based on the membership function of the input unit calculates a control signal to supply the fragrance in an amount suitable for the setting, and a flavoring agent insertion port by the user as an effective one for recovery from fatigue and prevention of drowsiness. The fragrance agent is further inserted into the fragrance agent based on a control signal from the controller to supply an appropriate amount of the fragrance of the fragrance agent.

The fragrance control device of the present invention (the third invention according to claim 3) includes a setting device for setting the fragrance concentration desired by the user, and an fragrance sensor for detecting the fragrance concentration in the space where the user is located. , An appropriate amount from the degree to which the relationship between the membership functions of the input part and the output part obtained from the sensory evaluation of multiple subjects and the detection value of the fragrance sensor set by the user is satisfied under the predetermined language control law condition. The controller comprises a controller for calculating a control signal for supplying the fragrance, and a blowing means for supplying an appropriate amount of the fragrance corresponding to the user's setting based on the control signal from the controller.

[0008]

The aroma control device of the first invention having the above-mentioned structure is
The controller outputs fuzzy inference based on the membership function of the input part and the output part according to the setting related to the drowsiness degree set in the setting device by the user, and outputs a control signal for determining the supply amount of the aroma, and the blowing means controls this. It provides a signal-based amount of aroma.

According to the aroma control device of the second aspect of the present invention having the above-mentioned structure, the controller uses the fuzzy inference from the point on the membership function of the input unit by the controller according to the set amount of the drowsiness and the degree of fatigue set by the user in the setting device. The relevant point of the membership function of the output part regarding the supply amount of is calculated and the control signal regarding the supply amount of the fragrance is output, and air is blown to the fragrance agent inserted by the user through the fragrance insertion port based on the control signal. , Supplying the user with the fragrance of the flavoring agent in an amount corresponding to the set degree of drowsiness and fatigue.

In the aroma control device of the third aspect of the present invention having the above-mentioned configuration, based on the relationship between the set value of the aroma concentration set by the user in the setting device and the aroma concentration detected by the aroma sensor, the relation is set by the controller. With reference to the language control rule condition that holds and the membership function of the input and output sections, a control signal for supplying an amount of fragrance corresponding to the above relationship is output, and the above-mentioned setting is performed by the air blowing means based on this control signal. The amount of the fragrance of the fragrance corresponding to the relationship between the detected value and the detected value is supplied.

[0011]

The aroma control device of the first aspect of the present invention, which has the above-described operation, supplies a corresponding amount of the aroma of the aroma chemical having a drowsiness prevention effect by fuzzy inference based on the set amount related to the set drowsiness degree. Therefore, it is possible to prevent drowsiness by giving an appropriate aroma stimulus according to the degree of ambiguous drowsiness that varies among individuals.

Since the aroma control device of the second aspect of the present invention which has the above-mentioned operation supplies the appropriate amount of the fragrance of the fragrance by fuzzy inference based on the set amounts of the drowsiness degree and the fatigue degree by the user, the drowsiness prevention, In addition, fatigue recovery can be achieved, and the fragrance can be easily exchanged by pulling out and inserting it into the fragrance insertion port, and an optimum fragrance can be set and enjoyed.

According to the aroma control device of the third invention having the above-mentioned operation, an appropriate amount of aroma is generated by fuzzy reasoning based on the language control condition in which the relationship between the aroma concentration set by the user and the concentration detected by the sensor is applicable. Since the replenishment and supply are performed, it is possible to supply the amount of aroma according to the user's request, and it is possible to achieve the effects of notable drowsiness and fatigue recovery.

[0014]

Embodiments of the first to third inventions will now be described with reference to the drawings.

(First Embodiment) The aroma control device of the first embodiment is an embodiment of the first and second inventions, and as shown in FIGS. 1 to 7, the user sets the drowsiness level and fatigue level. From the compatibility between the setter 1 having the volumes 11 and 12 for operating and the membership value of the input unit regarding the stored drowsiness and fatigue level and the set value set by the volumes 11 and 12 of the setter 1, A controller 2 that outputs a control signal of the supply amount of aroma in correspondence with the membership function of the output unit regarding the number of times of supply, and an aroma generating agent 35 that is effective for drowsiness and fatigue based on the control signal from the controller 2.
And a blower device 3 for controlling the amount of blown air supplied by the fan 34, and the entire device is compactly arranged in the same size as the ashtray arranged in the vehicle compartment.

The setting device 1 is provided with volumes 11 and 12 for which the degree of drowsiness and the degree of fatigue are set by the user.
Since the start switch 13 for starting the control by the controller 2 and the sensation of the intensity of the fragrance vary from person to person,
Individual difference correction volume 1 set by the user according to their senses
It consists of 4 and.

The controller 2 inputs each of the drowsiness and the degree of fatigue obtained from the sensory evaluation of the subject (or the condition part,
(Hereinafter simply referred to as an input section), and an output section (or a conclusion section, hereinafter simply referred to as an output section) of the number of times of supply corresponding to the membership function and the supply amount of the aroma suitable for effective prevention and recovery of drowsiness and fatigue. 2 for storing membership functions of
1 and the degree of conformity between the set levels set in the volumes 11 and 12 of the setter 1 and the membership functions of the degree of drowsiness and fatigue stored in the memory 21.
Start of the circuit 22 and the second circuit 23 which outputs an output value by the membership function regarding the number of times the fragrance is supplied from the output unit stored in the memory 21 based on the compatibility calculated by the first circuit 22 and the setting device 1. A clock oscillator 24 that outputs a programmed clock signal when the switch 13 is turned on by the user, and a control that is a pulse train of a number that counts the clock signal from the clock oscillator 24 and that corresponds to the output value from the second circuit 23. Counter circuit 25 that outputs a clock pulse signal as a signal
It consists of and.

In determining the membership functions of the input section and the output section stored in the memory 21, the following sensory evaluation was performed. Aroma stimulation seems to be effective, when you have drowsiness, when you feel tired, feel irritated,
When the subject smells multiple fragrances when they are floating or dull, or when you are worried about the smell of air conditioners, cigarettes, sweat, etc., the degree of necessity (necessary, no need, either As a result, it was found that many of the subjects answered that they needed an aroma when they had drowsiness and when they felt tired, and the same type of aroma was required.

Next, a fragrance suitable for a state in which the degree of drowsiness (quitely sleepy, somewhat sleepy, less sleepy) and the degree of fatigue (quite tired, slightly tired, less tired) are combined. As a result of having the subject evaluate the length of time (long, medium, short) of smelling the aroma as an index of the amount of scent, the correspondence between the membership function of the input part and the membership function of the output part is almost clear. Became.

A plurality of perfumes (very weak, slightly weak,
Randomly, five levels of fragrance with 5 levels of strength are given to the subject at random, and the degree of comfort / discomfort felt by the subject is 5 levels (very uncomfortable, somewhat uncomfortable, neither pleasant nor uncomfortable, somewhat Comfortable, comfortable).

Since the degree of fatigue and the degree of drowsiness vary from person to person and are ambiguous, the subject was asked to answer as a range on a number line from 0 to 10 and quantitatively grasped.

From the above sensory evaluation, it became clear that there are two cases in which a scent is required in the vehicle interior: "when I feel drowsiness" and "when I feel tired". Is "degree of drowsiness" and "degree of fatigue", and the output unit is "aroma supply frequency" for ease of control as aroma supply amount.
And

Next, it was found from the sensory evaluation result by the subject that the "degree of drowsiness" and the "degree of fatigue" should be divided into three levels. Therefore, the membership function of the input section can be divided into three levels. And each stage (level)
It was decided based on the range on the number line shown by the above-mentioned subject about how to make the range.

The number of aromas to be supplied was set to three levels, and the number of times aromas were supplied at each stage was determined by sensory evaluation, and a membership function of the output section was created.

From the above, an example of the created fuzzy rule is shown below. (1) When the person is not too sleepy and not too tired, the number of times of supply is small. (2) When the person is not very tired, the number of times of supply is small. (3) When the person is very sleepy and not too tired, the number of times of supply. (4) If you don't want to sleep much and are a little tired, the number of times of supply is small. (5) If you are slightly tired, if you are slightly tired, the number of times of supply is medium. (6) If you are quite sleepy or slightly tired, Frequent supply (7) When you are not very sleepy and quite tired, the number of times of supply is medium (8) When you are quite tired, when you are quite tired, you are frequently supplying (9) When you are very sleepy and quite tired , Supply many times

Membership functions and fuzzy rules of the input part and the output part described above are stored in the memory 21 in advance.

The blower device 3 amplifies the clock pulse signal from the counter circuit 25 of the controller 2 with the amplification degree set by the user by the individual difference correction volume 13 of the setting device 1 and outputs a pulse current to the current amplifier 31.
A motor 32 that rotationally drives the axial fan 34 by the pulse current from the current amplifier 31; an axial fan 34 that is rotationally driven by the motor 32; and a felt housed in a magazine-type container as shown in FIG. Axial fan impregnated with a pad of a material and disposed oppositely when the cap 35C is removed and the tip portion 35T is exposed as shown in FIG. The fragrance agent 35 is configured to intermittently blow the fragrance into the vehicle compartment through the supply port 35O.

(Operation / Effect of First Embodiment) When the user sets the drowsiness level and the fatigue level by the volumes 11 and 12 of the setting device 1, the device of the first embodiment having the above-mentioned configuration stores in the memory of the controller 2. On the basis of the fuzzy rules and the membership functions of the input section and the output section stored in 21, the degree of conformity with the membership function of the input section is obtained by the fuzzy inference, that is, by the second circuit 23. Determine the output value from the membership function of the output unit corresponding to the goodness of fit and output,
The counter circuit 25 outputs the clock pulse signal from the clock oscillator 24 by the number of pulses corresponding to the above output value, and the motor 32 drives the axial fan 34 with the current amplitude set by the user based on the clock pulse signal. Is intermittently driven a required number of times, and is blown to the fragrance agent 35 to supply an appropriate amount of fragrance into the vehicle compartment from the supply port 35O. That is, the user only has to insert the fragrance of the fragrance preferred by the user into the fragrance insertion port with a single touch, and the fragrance is supplied to the vehicle interior in an amount according to the degree of drowsiness and fatigue. It is effective in awakening drowsiness, preventing drowsiness, and recovering from fatigue, and has an effect of not causing discomfort due to too strong aroma.

(Second Embodiment) The aroma control device of the second embodiment is an embodiment of the third invention, and as shown in FIGS. 8 to 11, a volume 41 for setting the concentration of the fragrance preferred by the user. A setting device 4 including a start switch 42 for starting the control, and an aroma concentration sensor 5 arranged near the user's nose position on the front pillar FP of the vehicle interior to detect a change in electric resistance due to adsorption and desorption of aroma components. Based on the relationship between the aroma concentration set by the user by the setting device 4 and the detected concentration of the aroma concentration sensor 5, the control signal of the aroma supply amount is obtained from the correspondence relationship with the membership functions of the input section and the output section. And a fan 73 driven by a motor 72 based on a drive signal obtained by amplifying a control signal by a current amplifier 71. Comprising aromatic appropriate amount of the selected perfuming agents from the first embodiment and the same blower 7 for supplying. The device of the second embodiment is arranged in the console box CB except for the aroma concentration sensor 5 as shown in FIG.

As in the first embodiment, the controller 6 has a membership function of the input section regarding the magnitude relationship between the set concentration and the detected concentration obtained from the sensory evaluation by a plurality of subjects, and a membership of the output section regarding the number of times the aroma is supplied. A function, a memory 61 for pre-storing a fuzzy rule for fuzzy inference of the output part from the input part, and an output signal corresponding to the magnitude relationship between the set concentration and the detected concentration based on the membership function and the fuzzy rule stored in advance in the memory 61. And a clock oscillator 63 that outputs a clock signal when the start switch 42 of the setting device 4 is turned on.
And a counter circuit 64 that counts the clock signal and outputs a clock pulse signal as a control signal of a pulse train of a number corresponding to the output signal from the control circuit 62.

In the membership functions of the input section and the output section stored in the memory 61 of the second embodiment, a rough shape is first provisionally determined by a sensory evaluation by a plurality of subjects, as in the first embodiment, and then, The simulation was performed by substituting the tentative input value with the software to obtain the output value, and then the aroma concentration sensor was used for control to tune the membership functions of the input part and the output part to be optimum.

As an example of the fuzzy reasoning rules in the second embodiment, the following rules were created. (1) If the difference between the detected concentration and the set concentration is positively large, the aroma supply frequency is considerably reduced. (2) If the difference between the detected concentration and the set concentration is positively small, reduce the number of times the aroma is supplied. (3) If there is no difference between the detected concentration and the set concentration, leave the fragrance supply frequency unchanged. (4) If the difference between the detected concentration and the set concentration is negatively small, increase the number of times the aroma is supplied. (5) If the difference between the detected concentration and the set concentration is negative, increase the number of times the aroma is supplied.

In the device of the second embodiment having the above-mentioned structure, the aroma concentration in the vehicle compartment is detected by the sensor and fed back, so that the aroma is supplied at the number of times of supply according to the difference between the detected concentration and the set concentration, and the setting is performed. Since it has the effect of controlling the fragrance concentration, there are individual differences in fragrance, and some people prefer a weak fragrance or people who prefer a strong stimulating scent, but the optimum level depending on the user's taste or mood, drowsiness, etc. The fragrance (which gives an appropriate stimulus) is not compulsory, and is always supplied at a desired concentration or at a trace level at which the fragrance can be sensed, so that it is possible to enjoy the fragrance and maintain the comfort feeling. Play.

The above-mentioned embodiments are given as examples for the purpose of explanation, and the present invention is not limited to them, and the technique of the present invention which can be recognized by those skilled in the art from the description of the claims. Modifications and additions are possible as long as they do not violate the spirit of the idea.

In each of the above-described embodiments, the aroma supply amount is intermittently controlled by the number of times the aroma is supplied. However, it is controlled by the air flow amount of air containing a constant concentration of aroma, or the air flow amount is kept constant. It is also possible to control the amount of aroma supplied by controlling the contact area between the air and the fragrance, and there is no fluctuation in rotation, which is advantageous in terms of noise.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment device of the present invention.

FIG. 2 is a partially cutaway perspective view showing the device of the first embodiment.

FIG. 3 is a diagram showing a membership function of an input unit relating to a drowsiness degree of the first embodiment device.

FIG. 4 is a diagram showing a membership function of an input unit relating to a degree of fatigue of the first embodiment device.

FIG. 5 is a diagram showing a membership function of the output unit regarding the number of times a fragrance is supplied in the device of the first embodiment.

FIG. 6 is a plan view showing the form of an aromatic used during storage in the device of the first embodiment.

FIG. 7 is a plan view showing a form of an aromatic used in the device of the first embodiment when in use.

FIG. 8 is a block diagram showing a second embodiment device of the present invention.

FIG. 9 is a cross-sectional view showing an arrangement mode of a second embodiment device and an aroma concentration sensor in a vehicle compartment.

FIG. 10 is a diagram showing a membership function of an input unit of the second embodiment device.

FIG. 11 is a diagram showing a membership function of an output unit of the second embodiment device.

[Explanation of symbols]

 1, 4 Setting device 2, 6 Controller 3, 7 Air blower 5 Aroma concentration sensor 11, 12 Setting volume 13 Start switch 14 Individual difference correction volume 21 Memory 22 First circuit 23 Second circuit 24 Clock oscillator 25 Counter circuit 31 Current amplifier 32 motor 34 axial fan 35 fragrance 35O supply port

Claims (3)

[Claims] 1. A setter for setting at least a set amount related to the degree of drowsiness, and a fuzzy inference based on the set amount based on a membership function of an input unit and an output unit obtained from sensory evaluations of a plurality of subjects, to set the set amount. A controller for calculating a control signal for supplying an aroma supply amount suitable for the amount, and an air blowing means for supplying an aroma of the flavoring agent selected by the user in an amount based on the control signal. Incense control device. 2. A fuzzy inference based on a membership function of a setter for setting the degree of drowsiness and fatigue and the input function of the degree of drowsiness and fatigue obtained from the sensory evaluations of a plurality of subjects, thereby determining the amount suitable for the setting. Based on the control signal from the controller, the controller calculates the control signal to supply the fragrance and the fragrance agent inserted by the user from the fragrance agent insertion port is effective for recovery from fatigue and drowsiness. A fragrance control device comprising: a blowing means for supplying an appropriate amount of the fragrance of the fragrance. 3. A setting device for setting an aroma concentration desired by a user, an aroma sensor for detecting an aroma concentration in a space where the user is located, and membership of an input unit and an output unit obtained from sensory evaluations of a plurality of subjects. A controller that calculates a control signal for supplying an appropriate amount of fragrance based on the function and the degree to which the relationship between the user's set value and the detection value of the fragrance sensor is satisfied under a predetermined language control rule condition, and the controller A perfume control device comprising: an air blowing unit that supplies an appropriate amount of aroma corresponding to a user setting based on a control signal.