WO2021210740A1

WO2021210740A1 - Sleep care system using fragrances

Info

Publication number: WO2021210740A1
Application number: PCT/KR2020/013800
Authority: WO
Inventors: 권일봉; 정기백; 최하얀; 송태민; 이미옥
Original assignee: 주식회사 딥센트
Priority date: 2020-04-16
Filing date: 2020-10-08
Publication date: 2021-10-21
Also published as: KR20210128565A; KR102348185B1

Abstract

This sleep care system using fragrances comprises: a fragrance diffusion device to which first to n-th fragrance capsules are mounted; a servomotor that rotates by a reference angle each time a reference time passes; a first lidar; a second lidar; and a sleep evaluation module. The first lidar and the second lidar are mounted to the servomotor so as to be oriented in different directions, measure distances to different body parts of a sleeping user each time the servomotor rotates by the reference angle, and generate first distance data and second distance data. The sleep evaluation module determines a sleep score on the basis of the first distance data and the second distance data. The fragrance diffusion device individually controls the emission intensity of fragrance materials of each of the first to n-th fragrance capsules on the basis of the sleep score.

Description

Sleep care system using fragrance

The present invention relates to a sleep care system, and more particularly, to a sleep care system capable of improving the quality of a user's sleep by using a fragrance.

Recently, the number of people suffering from sleep disorders, regardless of age or occupation, is increasing.

Therefore, as a first step to solving sleep disorders, various methods for measuring sleep quality are being studied.

The most commonly used sleep quality measurement method measures the quality of sleep by measuring the body's bio-signals using an attached device such as a smart watch, a smart eye patch, or a hair band.

However, the method of using an attachable device has a problem in that it is difficult to continuously use the device because the user needs to sleep while wearing the electronic device, which makes the user feel uncomfortable.

There is also a method of measuring the quality of sleep using an application installed on a smartphone without using a separate attachment device, but the smartphone application has a problem in that the accuracy is significantly lowered.

In addition, since the existing sleep quality measurement method only evaluates sleep and does not provide a solution for improving sleep quality, there is a problem in that the user must take measures to improve the quality of sleep.

One object of the present invention to solve the above problems is to measure the quality of a user's sleep without using an attachable device, and provide a user-customized fragrance to improve the quality of sleep by providing a sleep care system using a fragrance. will provide

In order to achieve the above object of the present invention, a sleep care system using a fragrance according to an embodiment of the present invention is a fragrance injection device, a servomotor, a first lidar, a second lidar, and sleep evaluation contains modules. The fragrance spraying device is equipped with first to n-th (n is an integer of 2 or more) fragrance capsules for discharging fragrance substances of different fragrances. The servomotor rotates by a reference angle every reference time to repeatedly reciprocate in a rotation range from a minimum angle to a maximum angle. The first lidar is mounted on the servomotor, and whenever the servomotor rotates by the reference angle, the first distance data is generated by measuring the distance to one body part of the sleeping user located in the front direction. do. The second lidar is mounted on the servomotor to face a different direction from the first lidar, and each time the servomotor rotates by the reference angle, another body of the sleeping user located in the front direction The second distance data is generated by measuring the distance to the site. The sleep evaluation module determines large movements and small movements of the user based on the first distance data and the second distance data, and sleeps based on the number of large movements and the number of small movements that occurred during sleep time determine the score The fragrance injection device determines the combination of fragrances to be emitted by individually controlling the intensity of emission of the fragrance substances of each of the first to n-th fragrance capsules based on the sleep score.

A sleep care system using a fragrance according to embodiments of the present invention can improve the quality of a user's sleep by accurately evaluating the quality of a user's sleep according to the type of fragrance provided without using a device attached to the body. It is possible to effectively provide a customized and optimal fragrance.

1 is a view showing a sleep care system using a fragrance according to an embodiment of the present invention.

Figure 2 is a view showing an example of the fragrance spraying device included in the sleep care system using the fragrance of Figure 1.

3 is a block diagram illustrating an example of a sleep evaluation module included in the sleep care system using the fragrance of FIG. 1 .

FIG. 4 is a diagram for explaining an operation of a motion sensor included in the sleep evaluation module of FIG. 1 .

5 is a graph illustrating an example of a sleep graph generated by a sleep graph generator included in the sleep evaluation module of FIG. 1 .

Figure 6 is a diagram showing an example of a questionnaire transmitted to the mobile terminal by the fragrance injection device of Figure 1 after the end of the user's sleep.

7 is a diagram illustrating an example of a sleep result report transmitted to the mobile terminal by the fragrance injection device of FIG. 1 after the end of the user's sleep.

With respect to the embodiments of the present invention disclosed in the text, specific structural or functional descriptions are only exemplified for the purpose of describing the embodiments of the present invention, and the embodiments of the present invention may be embodied in various forms. It should not be construed as being limited to the embodiments described in .

Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms may be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", should be interpreted similarly.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, and includes one or more other features or numbers. , it is to be understood that it does not preclude the possibility of the presence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as meanings consistent with the context of the related art, and unless explicitly defined in the present application, they are not to be interpreted in an ideal or excessively formal meaning. .

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and repeated descriptions of the same components are omitted.

Referring to FIG. 1 , the sleep care system 10 using a fragrance includes a fragrance spraying device 100 and a sleep analyzing device 200 .

The fragrance injection device 100 includes a wireless communication module. The fragrance injection device 100 communicates with each other through wireless communication with the mobile terminal 30 of the user 20 using the wireless communication module.

1 , the wireless communication may be Internet communication. In this case, the wireless communication module included in the fragrance injection device 100 corresponds to a Wi-Fi (Wi-Fi) communication module, the fragrance injection device 100 is an external wireless access device (Access Point; AP) through the Internet may be connected to and communicate with the mobile terminal 30 .

However, the present invention is not limited thereto, and according to embodiments, the wireless communication may be various types of wireless communication. For example, the wireless communication may be Bluetooth communication. In this case, the wireless communication module included in the fragrance injection device 100 corresponds to the Bluetooth communication module, and the fragrance injection device 100 is directly connected to the mobile terminal 30 using a Bluetooth communication module to perform communication. may be

Although the mobile terminal 30 is illustrated as a smart phone in FIG. 1 , the present invention is not limited thereto. According to an embodiment, the mobile terminal 30 may be any portable mobile terminal such as a tablet computer, a mobile phone, a personal digital assistant (PDA), a laptop computer, etc. .

Referring to FIG. 2 , the fragrance injection device 100 may include a body 110 and a housing 120 .

In addition, the fragrance injection device 100 may include the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) mounted in the inner space of the housing (120). Here, n represents an integer of 2 or more.

The first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) may discharge aroma substances of different fragrances.

For example, the user 20 selects n fragrance capsules from among a plurality of fragrance capsules for discharging a fragrance material of a different fragrance, and the selected n fragrance capsules are first to n-th fragrance capsules 130- 1, 130-2, 130-3, 130-4) may be mounted in the inner space of the housing 120 .

According to the preference of the user 20, the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) mounted in the inner space of the housing 120, each of the plurality of fragrances Among the capsules, it can be replaced with a fragrance capsule that discharges a fragrance substance of a different fragrance.

In addition, the fragrance injection device 100 may include the first to n-th fans (fan) (140-1, 140-2, 140-3, 140-4) mounted in the inner space of the housing (120). have.

The first to n-th fans (140-1, 140-2, 140-3, 140-4) each of the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) It can be mounted in a position adjacent to each.

For example, as shown in Figure 2, the first to n-th fans (140-1, 140-2, 140-3, 140-4) each of the first to n-th fragrance capsules 130-1, 130-2, 130-3, 130-4) can be mounted on the lower part of each.

Therefore, the first to n-th fans (140-1, 140-2, 140-3, 140-4) as the rotation speed of each increases, the first to n-th fragrance capsules (130-1, 130-2, 130-) 3, 130-4) The intensity of discharging each direction substance increases, and as the rotation speed of each of the first to n-th fans 140-1, 140-2, 140-3, and 140-4 decreases, the first to second n fragrance capsules (130-1, 130-2, 130-3, 130-4) each of the aroma substance emission intensity can be reduced.

At this time, the fragrance injection device 100 is based on each of the first to n-th set values, the first to the n-th fans (140-1, 140-2, 140-3, 140-4) the rotation speed of each can be controlled

In Figure 2, illustratively four fragrance capsules (130-1, 130-2, 130-3, 130-4) and four fans (140-1, 140-2, 140-3, 140-4) are Although illustrated as being mounted in the inner space of the housing 120, the present invention is not limited thereto, and according to embodiments, any number of fragrance capsules and fans may be mounted in the inner space of the housing 120. .

In an embodiment, the housing 120 may include a plurality of openings 121 .

For example, as shown in FIG. 2 , the plurality of openings 121 may be formed on the upper surface of the housing 120 .

Fragrance substances discharged from the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) are fragrance injection device through a plurality of openings 121 formed in the housing (120). (100) may be emitted to the outside.

On the other hand, the inside of the main body 110, a circuit board (CB) 150 for controlling the operation of the fragrance injection device 100 may be mounted.

For example, the wireless communication module performing wireless communication with the mobile terminal 30 and the first to n-th fans (140-1, 140-2, 140-3, 140-4) for controlling the rotation speed of each The control module may be mounted on the circuit board 150 .

Although an example of the fragrance spraying device 100 has been described with reference to FIG. 2 , the shape of the perfume spraying device 100 shown in FIG. 2 is exemplary, and the present invention is not limited thereto, and according to embodiments The fragrance injection device 100 may be formed in various shapes.

Referring back to FIG. 1 , the operation mode of the fragrance injection device 100 may include a user setting mode and a sleep care mode.

In the user setting mode, the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) each of which is mounted on the fragrance injection device 100, the intensity of discharging the aroma substances is the mobile terminal ( 30) can be controlled by

At this time, the mobile terminal 30 can control the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) by digitizing the intensity of each of the aroma substances discharged as an integer value. .

For example, the mobile terminal 30 is a first to n-th setting corresponding to the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) each of the aroma substance discharge intensity Transmitting the values to the perfume injection device 100, the perfume injection device 100 is based on the first to n-th set values received from the mobile terminal 30, first to n-th fans 140-1, 140-2, 140-3, 140-4) by adjusting the rotation speed of each of the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) each of the aroma substance discharge intensity can be adjusted.

On the other hand, in the sleep care mode, the fragrance injection device 100 is based on the sleep state of the user 20 analyzed through the sleep analysis device 200, the first to n-th fragrance capsules 130-1, 130- 2, 130-3, 130-4) It is possible to determine the combination of the emitted fragrances by individually controlling the intensity of each fragrance material emission.

For example, the sleep analysis apparatus 200 may detect the movement of the user 20 during the sleep time of the user 20 and determine a sleep score indicating the quality of sleep of the user 20 based on the detected movement. have.

The fragrance injection device 100 is the first to the n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) currently set at the end of every sleep of the user 20, each of the aroma substance discharge intensity The corresponding first to nth set values and the sleep score may be correlated and accumulated and stored.

When the sleep care mode is selected by the user 20 during the next sleep of the user 20, the fragrance injection device 100 is the first to associated with the highest sleep score among the accumulated and stored sleep scores. Based on the n-th set values, the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) can emit a user-customized fragrance by adjusting the intensity of each of the fragrance substances emitted. .

Hereinafter, the configuration and operation of the sleep care system 10 using the fragrance will be described in detail with reference to FIG. 1 .

The user 20 may select one of the user setting mode and the sleep care mode before going to sleep.

As described above, the fragrance injection device 100 is based on the first to n-th set values received from the mobile terminal 30 in the user setting mode, first to n-th fans 140-1, 140- 2, 140-3, 140-4) by adjusting the respective rotational speed to emit a combination of scents corresponding to the first to n-th set values, and to be determined by the sleep analysis device 200 in the sleep care mode The first to nth set values are selected based on the sleep score, and the first to nth fans 140-1, 140-2, 140-3, and 140 are selected based on the first to nth set values. -4) A combination of fragrances corresponding to the first to n-th set values may be emitted by adjusting each rotation speed.

A detailed process of selecting the first to n-th setting values based on the sleep score determined by the fragrance injection device 100 from the sleep analysis device 200 in the sleep care mode will be described later.

Referring to FIG. 1 , the sleep analysis device 200 includes a first lidar 210 , a second lidar 220 , a servomotor 230 , a lidar support 240 , and a bottom case. 250 , and a sleep evaluation module 260 .

As shown in FIG. 1 , a circuit board for controlling the overall operation of the sleep analysis device 200 is mounted inside the bottom case 250 , and the fragrance injection device 100 is placed on the top of the bottom case 250 . In a state, the fragrance injection device 100 and the sleep analysis device 200 may be connected to each other.

A lidar support 240 is formed on one side of the bottom case 250 , and a servomotor 230 may be mounted at an end of the lidar support 240 .

The servomotor 230 may rotate by a reference angle every reference time to repeatedly reciprocate in a rotation range from a minimum angle to a maximum angle.

The first lidar 210 and the second lidar 220 may be mounted on the servomotor 230 . In this case, the first lidar 210 and the second lidar 220 may be mounted on the servomotor 230 to face different directions.

In one embodiment, as shown in Figure 1, the first lidar 210 is mounted on the servomotor 230 so that the front direction faces the upper body portion of the user 20, the second lidar 220 ) may be mounted on the servomotor 230 so that the front direction faces the lower body of the user 20 .

Accordingly, as the servomotor 230 rotates, the first lidar 210 and the second lidar 220 may scan different body parts of the user 20 .

The first lidar 210 measures the distance to one body part of the sleeping user 20 positioned in the front direction whenever the servomotor 230 rotates by the reference angle to obtain first distance data DD1 can create

The second lidar 220 measures the distance to another body part of the sleeping user 20 positioned in the front direction whenever the servomotor 230 rotates by the reference angle to obtain second distance data DD2. can create

The lidar is a sensor that emits light to a surrounding target and measures the distance to the target based on the light reflected from the target. The method of measuring the distance to the target by the lidar is widely As it is a known fact, here, the first distance data DD1 and the first distance data DD1 and A detailed description of the operation of generating the second distance data DD2 will be omitted.

On the other hand, the minimum angle and the maximum angle corresponding to the rotation range of the servo motor 230 are the entire space in which the user 20 sleeps, such as a bed in which the first lidar 210 and the second lidar 220 are sleeping. can be set as an angular range that can be scanned.

For example, the minimum angle may correspond to 0 degrees, and the maximum angle may correspond to 70 degrees.

In addition, as the reference time and the reference angle are set to smaller values, the sleep analysis apparatus 200 may more precisely detect the movement of the user 20 .

For example, the reference time may be set to 0.15 seconds, and the reference angle may be set to 5 degrees.

In this case, the servomotor 230 may reciprocate in the range of 0 degrees to 70 degrees with a cycle of about 4.2 seconds, and the servomotor 230 may reciprocate in the range of 0 degrees to 70 degrees for every rotation period that reciprocates. The first lidar 210 and the second lidar 220 may generate 28 pieces of first distance data DD1 and second distance data DD2, respectively.

In addition, since the servomotor 230 rotates for about 7000 cycles when the user 20 sleeps for about 8 hours, the first lidar 210 and the second lidar 220 move a first distance for about 7,000 cycles. Data DD1 and second distance data DD2 may be generated.

Meanwhile, the first distance data DD1 and the second distance data DD2 generated from the first lidar 210 and the second lidar 220 may be transmitted to the sleep evaluation module 260 .

In one embodiment, the sleep evaluation module 260, the motor control module for controlling the movement of the servomotor 230, and the data communication module for performing data transmission and reception with the fragrance injection device 100 are circuit board 150 can be mounted on

The sleep evaluation module 260 is configured for the user 20 based on the first distance data DD1 and the second distance data DD2 generated from the first lidar 210 and the second lidar 220 for each reference time. ) of the large movement (B_M) and small movement (S_M), and based on the number of large movements (B_M) and small movements (S_M) that occurred during the sleep time of the user 20, the user 20's sleep It is possible to determine a sleep score (S_SCORE) indicating the quality of

Hereinafter, the configuration and operation of the sleep evaluation module 260 will be described in detail with reference to FIGS. 3 to 5 .

Referring to FIG. 3 , the sleep evaluation module 260 includes a noise filter unit 261 , a distance change calculation unit 263 , a motion detection unit 265 , a sleep graph generation unit 267 , and a sleep score calculation unit 269 . ) may be included.

Due to hardware characteristics of the lidar or circuit board, the first distance data DD1 and the second distance data DD2 generated from the first lidar 210 and the second lidar 220 intermittently have abnormal sizes. values may occur.

Accordingly, the noise filter unit 261 receives the first distance data DD1 and the second distance data DD2 from the first lidar 210 and the second lidar 220 , and the first distance data DD1 and noise included in the second distance data DD2 may be removed.

In an embodiment, when the first distance data DD1 currently generated from the first lidar 210 is greater than a threshold value, the noise filter unit 261 immediately passes the currently generated first distance data DD1. is changed into the first distance data DD1 generated in may be changed to the second distance data DD2 generated immediately before.

The distance change calculator 263 may receive the first distance data DD1 and the second distance data DD2 from which noise is removed from the noise filter unit 261 .

Also, the distance change calculator 263 may receive the motor position information M_POS indicating at which angle the servo motor 230 is in the rotation period from the motor control module.

Accordingly, the distance change calculator 263 determines whether the currently received first distance data DD1 and the second distance data DD2 correspond to which angle in the rotation period based on the motor position information M_POS. can figure out

The distance change calculation unit 263 includes the first distance data DD1 and the second distance data DD2 generated in the current rotation period in which the servomotor 230 reciprocates in the rotation range and the previous rotation in which the rotation range is reciprocated. The distance change amount DIFF corresponding to the current rotation period may be calculated by comparing the first distance data DD1 and the second distance data DD2 generated in the period.

Specifically, the distance change calculator 263 is configured to generate first distance data DD1 generated when the servomotor 230 is positioned at the same angle in the current rotation period and the immediately preceding rotation period of the servomotor 230 . The distance variation DIFF with respect to the current rotation period may be calculated based on the difference between the distances and the difference between the second distance data DD2 generated when the servomotor 230 is positioned at the same angle.

In an embodiment, the distance change calculator 263 may calculate the distance change amount DIFF for the current rotation period based on Equation 1 below.

[Equation 1]

Here, DD1[j,i] represents the i-th first distance data DD1 generated in the j-th rotation period of the servomotor 230 , and DD1[j-1,i] is the represents the first distance data DD1 generated at the i-th in the (j-1)-th rotation period, and DD2[j,i] is the second distance generated as the i-th in the j-th rotation cycle of the servomotor 230 . represents the data DD2, DD2[j-1,i] represents the i-th second distance data DD2 generated in the (j-1)-th rotation period of the servomotor 230 , and k represents the servomotor 230 . Reference numeral 230 denotes the number of first distance data DD1 and second distance data DD2 generated during one rotation period, and DIFFj denotes the distance variation DIFF for the j-th rotation period.

As described in Equation 1, the distance change calculator 263 includes each of the first distance data DD1 sequentially generated during the current rotation period and a first distance sequentially generated during the immediately preceding rotation period. A first displacement corresponding to a root mean square (RMS) value for a difference between each of the data DD1 is calculated, and each of the second distance data DD2 sequentially generated during the current rotation period and the previous rotation period A second displacement corresponding to an RMS value for each difference between the second distance data DD2 sequentially generated during the operation may be calculated.

Thereafter, the distance change calculator 263 may determine an arithmetic average of the first displacement and the second displacement as the distance change amount DIFF with respect to the current rotation period.

On the other hand, the movement of the lower body may have a greater effect on the quality of sleep than the movement of the upper body.

Therefore, while the servomotor 230 reciprocates the rotation range, the front direction of the first lidar 210 is toward the upper body of the user 20 and the second lidar 220 has the front direction of the user 20 . When set to face the lower body, the distance change calculator 263 calculates a weighted average of the first displacement and the second displacement by applying a greater weight to the second displacement than to the first displacement, and The weighted average may be determined as a distance variation (DIFF) with respect to the current rotation period.

The distance change calculator 263 may provide the distance change amount DIFF generated for every rotation period to the motion detector 265 .

The motion detector 265 may determine whether a large motion B_M and a small motion S_M occur in the corresponding rotation period based on the size of the distance variation DIFF generated in each rotation period.

4 exemplarily shows a graph showing the distance variation DIFF for 7000 rotation cycles T corresponding to the sleep time of the user 20 .

As shown in FIG. 4 , the distance change amount DIFF in each rotation period T has a value of 50 or less, but when the user 20 toss and turns in the rotation period T, the distance change amount DIFF is will have a high value.

Accordingly, the motion detection unit 265 determines that a large motion B_M has occurred when the distance variation DIFF is greater than the first reference size, and the distance variation DIFF is less than or equal to the first reference size and is equal to or smaller than the first reference size. If it is larger than the size, it may be determined that a small movement S_M has occurred.

In one embodiment, the motion detection unit 265 determines as the first reference size a value obtained by multiplying an average value of distance variations (DIFF) calculated for each rotation period (T) during the sleep time by a first ratio, A value obtained by multiplying the average value by a second ratio smaller than the first ratio may be determined as the second reference size.

For example, the first ratio may have a value greater than 2.5 and less than 3, and the second ratio may have a value greater than 2 and less than 2.5.

In the graph shown in FIG. 4, for example, the average value of the distance variations (DIFF) calculated for each rotation period T during the sleep time is about 74, the first ratio is set to 2.7, and the second ratio is Set to 2.2, the first reference size corresponds to about 200 and the second reference size is shown to correspond to about 163.

In this case, as shown in FIG. 4 , when the distance change amount DIFF is greater than the first reference size corresponding to about 200, the motion detection unit 265 detects a large movement B_M in the corresponding rotation period T. It is determined that it has occurred, and when the distance variation DIFF is less than or equal to the first reference size and is greater than the second reference size corresponding to about 163, it is determined that a small movement S_M has occurred in the corresponding rotation period T can

In the graph of FIG. 4 , a large movement B_M is indicated by a triangle, and a small movement S_M is indicated by a circle.

Referring back to FIG. 3 , the motion detection unit 265 determines whether a large motion B_M and a small motion S_M occur in each rotation period T by the sleep graph generation unit 267 and the sleep score calculation. may be provided to the unit 269 .

The sleep graph generating unit 267 is a sleep graph indicating a sleep state during the sleep time of the user 20 based on whether a large motion (B_M) and a small motion (S_M) occur in each rotation period (T). (S_GRAPH) can be created.

In one embodiment, the sleep graph generating unit 267 divides the total sleep time of the user 20 into m sections of the same interval, and the number of large movements (B_M) and small movements occurring in each of the m sections. The number of times (S_M) can be counted.

Thereafter, for each of the m sections, the sleep graph generator 267 multiplies the number of large movements (B_M) by the first weight and the number of small movements (S_M) with a second weight smaller than the first weight. By summing the values multiplied by the weights, a motion result value (MR) in the corresponding section may be calculated.

For example, the sleep graph generator 267 may calculate the motion result value MR based on Equation 2 below.

[Equation 2]

Here, MR represents the motion result value (MR) in the corresponding section, BMN represents the number of large movements (B_M) in the corresponding section, and SMN represents the number of small motions (S_M) in the corresponding section. , wt1 denotes the first weight, and wt2 denotes the second weight.

In an embodiment, the first weight may be set to 0.9, and the second weight may be set to 0.1.

Thereafter, the sleep graph generating unit 267 may generate a sleep graph S_GRAPH indicating a motion result value MR for each of the m sections.

5 shows a sleep graph generating unit 267 in a state in which the total sleep time of the user 20 is divided into 80 sections (SEC) of the same interval, the first weight is set to 0.9, and the second weight is set to 0.1. ), a sleep graph (S_GRAPH) representing the motion result value (MR) for each section is illustrated as an example.

Although the sleep graph (S_GRAPH) is illustrated as a step-like graph in FIG. 5, the present invention is not limited thereto, and according to embodiments, the sleep graph (S_GRAPH) is a graph of various types such as a curved graph, a bar graph, etc. can be displayed.

Referring back to FIG. 3 , the sleep score calculation unit 269 compares the number of large movements B_M that occurred during the entire sleep time of the user 20 with the first standard number, and during the entire sleep time of the user 20 . A sleep score (S_SCORE) may be calculated by comparing the number of small movements (S_M) that have occurred and the second standard number of times.

In one embodiment, the sleep score calculation unit 269 has a larger value as the difference between the number of large movements B_M and the first standard number generated during the entire sleep time of the user 20 is smaller, and the user 20 ), a first score having a smaller value may be determined as the difference between the number of large movements B_M and the first standard number during the entire sleep time of .

In addition, the sleep score calculator 269 has a larger value as the difference between the number of small movements S_M and the second standard number generated during the entire sleep time of the user 20 is smaller, and the total sleep of the user 20 is A second score having a smaller value may be determined as the difference between the number of small movements S_M and the second standard number during time is greater.

In this case, the first standard number represents the average number of large movements that occur during the entire sleep time of a general person, and the second standard number represents the average number of small movements that occur during the general person's total sleep time .

For example, the first standard number of times may be set to 20, and the second standard number of times may be set to 80.

In an embodiment, the sleep score calculator 269 may calculate the first score based on Equation 3 below, and calculate the second score based on Equation 4 below. .

[Equation 3]

[Equation 4]

Here, SC1 represents the first score, BMNt represents the number of large movements (B_M) that occurred during the entire sleep time of the user 20, rn1 represents the first standard number, and MAX1 represents the first score. Indicates the highest score awarded. In addition, SC2 represents the second score, SMNt represents the number of small movements (S_M) that occurred during the entire sleep time of the user 20, rn2 represents the second standard number, and MAX2 represents the second score. Indicates the highest score awarded.

As described in [Equation 3] and [Equation 4], the sleep score calculation unit 269 determines that the number of large movements (B_M) occurring during the entire sleep time of the user 20 is 0 or the first standard If it is greater than twice the number of times, it has a value of 0, and increases as the difference between the number of large movements (B_M) and the first standard number decreases, and the number of large movements (B_M) matches the first standard number In this case, the first score may be determined to have a MAX1 value.

Similarly, the sleep score calculation unit 269 has a value of 0 when the number of small movements (S_M) generated during the entire sleep time of the user 20 is 0 or greater than twice the second standard number of times, As the difference between the number of movements (S_M) and the second standard number decreases, it gradually increases, and when the number of small movements (S_M) coincides with the second standard number, the second score may be determined to have a MAX2 value. .

In an embodiment, the highest score MAX1 given to the first score and the highest score MAX2 given to the second score may be set to 40, respectively.

Thereafter, the sleep score calculator 269 may determine the sum of the first score and the second score as the sleep score S_SCORE.

On the other hand, after the end of sleep of the user 20, the sleep analysis apparatus 200 calculates the sleep graph (S_GRAPH) generated by the sleep graph generation unit 267 and the sleep score (S_SCORE) generated by the sleep score calculation unit 269 . Provided to the fragrance injection device 100, the fragrance injection device 100 may transmit the sleep graph (S_GRAPH) and the sleep score (S_SCORE) received from the sleep analysis device 200 to the mobile terminal (30).

Accordingly, the user 20 can easily grasp the quality of his or her sleep by checking the sleep graph S_GRAPH and the sleep score S_SCORE through the mobile terminal 30 at the end of every sleep.

On the other hand, the quality of sleep of the user 20 may vary depending on the type of fragrance emitted from the fragrance injection device 100 during sleep.

Therefore, the fragrance injection device 100 analyzes the sleep score (S_SCORE) according to the type of fragrance provided during sleep, and selects the optimal type of fragrance that can improve the quality of sleep during the next sleep of the user 20. can provide

To this end, the fragrance injection device 100 is the first to n-th fragrance capsules 130-1, 130 currently set to the sleep score (S_SCORE) received from the sleep analysis device 200 for every sleep of the user 20 . -2, 130-3, 130-4) may be accumulated and stored in association with the first to n-th set values corresponding to the intensity of each fragrance emission.

When the sleep care mode is selected by the user 20 during the next sleep of the user 20, the fragrance injection device 100 is associated with the highest sleep score (S_SCORE) among the accumulated and stored sleep scores (S_SCORE) Based on the first to n-th set values being the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) by adjusting the intensity of each of the aroma substances emitted by the user (20) ) can emit a user-customized optimal fragrance that can improve the quality of sleep.

In one embodiment, the fragrance injection device 100 considers both the sleep score (S_SCORE) generated from the sleep analysis device 200 and the subjective evaluation of the user 20 for the corresponding sleep, the next sleep of the user 20 It is also possible to select and provide an optimal type of fragrance that can improve the quality of sleep.

To this end, the fragrance injection device 100 may transmit a questionnaire regarding subjective evaluation of sleep to the mobile terminal 30 after the end of sleep of the user 20 .

6, received from the fragrance injection device 100 on the screen of the mobile terminal 30, "How was your sleep today?", "Did you have any problems falling asleep?", "Did you sleep well today?" ?", "How was the scent of sleep provided today?", and "Are you refreshed today?" A questionnaire is shown as an example.

However, the questionnaires shown in FIG. 6 are only examples, and the present invention is not limited thereto. According to embodiments, the fragrance injection device 100 may transmit various types of questionnaires regarding the subjective evaluation of sleep to the mobile terminal 30 .

The user 20 inputs a response to the questionnaire displayed on the mobile terminal 30 , and the fragrance injection device 100 may receive the questionnaire result from the mobile terminal 30 .

The fragrance injection device 100 may calculate a subjective score based on the survey result from the mobile terminal 30 .

For example, as shown in FIG. 6 , when each of the questionnaires is a 5-point scale questionnaire, the fragrance injection device 100 sums the scores input by the user 20 for each questionnaire, and the subjective score can be calculated.

Thereafter, the fragrance injection device 100 may determine the final score based on the subjective score calculated based on the sleep score (S_SCORE) and the user 20 generated from the sleep analysis device 200 and the questionnaire result.

For example, the fragrance injection device 100 may determine the final score by summing the sleep score (S_SCORE) and the subjective score.

In this case, the fragrance injection device 100 analyzes the final score according to the type of fragrance provided during sleep, and selects the optimal fragrance type that can improve the quality of sleep during the next sleep of the user 20 can provide

To this end, the fragrance injection device 100 for every sleep of the user 20, the final score is currently set first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) It may be accumulated and stored in association with the first to n-th set values corresponding to the intensity of each fragrance emission.

When the sleep care mode is selected by the user 20 during the next sleep of the user 20, the fragrance injection device 100 is the first to associated with the highest final score among the cumulatively stored final scores. The quality of sleep of the user 20 by adjusting the intensity of each of the first to n-th fragrance capsules (130-1, 130-2, 130-3, 130-4) discharged on the basis of the n-th set values It is possible to emit a user-customized optimal fragrance that can enhance the

On the other hand, every time the sleep ends, the fragrance injection device 100 may transmit a sleep result report indicating the evaluation result for the sleep to the mobile terminal (30).

Referring to FIG. 7 , the sleep result report includes the number of large movements (B_M) that occurred during the total sleep time of the user 20, the number of small movements (S_M) that occurred during the total sleep time of the user 20, and a sleep graph ( S_GRAPH), sleep score (S_SCORE), and the subjective score.

Accordingly, the user 20 can easily grasp the quality of his sleep by checking his sleep evaluation result through the mobile terminal 30 at the end of every sleep.

As described above with reference to FIGS. 1 to 7 , the sleep care system 10 using a fragrance according to embodiments of the present invention is the quality of a user's sleep according to the type of fragrance provided without using a device attached to the body. By accurately evaluating the user's sleep quality, it is possible to effectively provide a user-customized and optimal fragrance.

Above, the sleep care system 10 using fragrance according to embodiments of the present invention uses the first lidar 210 and the second lidar 220 facing different body parts of the sleeping user 20 . Although it has been described as operating in this way, the present invention is not limited thereto. According to embodiments, the sleep care system 10 using a fragrance may be implemented using three or more lidars facing different body parts of the sleeping user 20 . In this case, the sleep care system 10 using the fragrance more precisely detects the movement of the user 20 and more accurately evaluates the quality of the user's sleep, thereby further increasing the effect of improving the quality of sleep through the provision of a user-customized fragrance. can

The present invention can be usefully used to improve the quality of sleep by measuring the quality of a user's sleep without using an attachable device and providing a user-customized scent.

As described above, although described with reference to preferred embodiments of the present invention, those of ordinary skill in the art may vary the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. It will be understood that modifications and changes may be made to

10: sleep care system using fragrance 20: user

30: mobile terminal 100: fragrance injection device

110: body 120: housing

121: opening 130: fragrance capsule

140: fan 150: circuit board

200: sleep analysis device 210: first lidar

220: second lidar 230: servo motor

240: lidar support 250: bottom case

260: sleep evaluation module 261: noise filter unit

263: distance change calculation unit 265: motion detection unit

267: sleep graph generation unit 269: sleep score calculation unit

Claims

First to n-th (n is an integer of 2 or more) for discharging fragrance substances of different fragrances fragrance capsules are mounted fragrance injection device;

a servomotor that rotates by a reference angle every reference time and repeatedly reciprocates a rotation range from a minimum angle to a maximum angle;

a first lidar mounted on the servomotor and generating first distance data by measuring the distance to one body part of the sleeping user located in the front direction whenever the servomotor rotates by the reference angle;

It is mounted on the servomotor so as to face a different direction from the first lidar, and each time the servomotor rotates by the reference angle, the distance to other body parts of the sleeping user located in the front direction is measured. a second lidar to generate second distance data; and

Sleep determining a large movement and a small movement of the user based on the first distance data and the second distance data, and determining a sleep score based on the number of large movements and the number of small movements occurring during sleep time comprising an evaluation module;

The fragrance injection device is a sleep care system using a fragrance to determine a combination of fragrances emitted by individually controlling the intensity of the fragrance substance emission of each of the first to n-th fragrance capsules based on the sleep score.
According to claim 1, wherein the sleep evaluation module,

In the current rotation period and the immediately preceding rotation period of the servomotor, the current rotation is based on a difference between the first distance data and the second distance data generated when the servomotor is positioned at the same angle A sleep care system using a fragrance that calculates a distance change with respect to a period, and determines whether the large movement and the small movement occur in the current rotation period based on the magnitude of the distance change.
According to claim 2, wherein the sleep evaluation module,

A first displacement corresponding to a root mean square (RMS) value for a difference between each of the first distance data sequentially generated during the current rotation period and each of the first distance data sequentially generated during the immediately preceding rotation period calculate,

calculating a second displacement corresponding to an RMS value for a difference between each of the second distance data sequentially generated during the current rotation period and each of the second distance data sequentially generated during the immediately preceding rotation period;

A sleep care system using a fragrance for determining an average of the first displacement and the second displacement as the distance variation with respect to the current rotation period.
According to claim 3, While the servomotor reciprocates the rotation range, the front direction of the first lidar is toward the upper body of the user, and the second lidar is the front direction of the lower body of the user. If heading,

The sleep evaluation module calculates a weighted average of the first displacement and the second displacement by applying a greater weight to the second displacement than the first displacement, and uses the weighted average as the distance variation with respect to the current rotation period. A sleep care system using a fragrance that is determined by
According to claim 2, wherein the sleep evaluation module,

If the distance variation is larger than the first reference size, it is determined that the large movement has occurred,

When the distance variation is smaller than or equal to the first reference size and greater than the second reference size, it is determined that the small movement has occurred. A sleep care system using a fragrance.
The method of claim 5, wherein the sleep evaluation module,

determining, as the first reference size, a value obtained by multiplying the average value of the distance variations calculated for every rotation period during the sleep time by a first ratio,

A sleep care system using a fragrance for determining a value obtained by multiplying the average value by a second ratio smaller than the first ratio as the second reference size.
The sleep care system according to claim 6, wherein the first ratio has a value greater than 2.5 and less than 3, and the second ratio has a value greater than 2 and less than 2.5.
According to claim 2, wherein the sleep evaluation module,

A sleep care system using a fragrance for calculating the sleep score by comparing the number of large movements that occurred during the sleep time and a first standard number, and comparing the number of small movements and a second standard number of movements that occurred during the sleep time.
The method of claim 8, wherein the sleep evaluation module,

A second having a larger value as the difference between the number of large movements and the first standard number generated during the sleeping time is smaller, and having a smaller value as the difference between the number of large movements and the first standard number occurring during the sleeping time is greater 1 to determine the score,

The smaller the difference between the number of small movements and the second standard number during the sleep time, the larger the value, and the larger the difference between the number of small movements and the second standard number during the sleep time, the smaller the second standard number. 2 to determine the score,

A sleep care system using a fragrance for determining the sum of the first score and the second score as the sleep score.
The method of claim 9, wherein the sleep evaluation module,

When the number of the large movements that occurred during the sleep time is 0 or greater than twice the first standard number of times, the first score is determined as 0,

When the number of the small movements generated during the sleep time is 0 or greater than twice the second standard number of times, a sleep care system using a fragrance to determine the second score as 0.
According to claim 2, wherein the sleep evaluation module,

The sleep time is divided into m sections, and the number of large movements and the number of small movements generated in each of the m sections are counted,

For each of the m sections, a value obtained by multiplying the number of large movements by a first weight and a value obtained by multiplying the number of small movements by a second weight smaller than the first weight are summed to obtain a motion result value in a corresponding interval calculate,

generating a sleep graph indicating the motion result value for each of the m sections,

The fragrance injection device, sleep care system using a fragrance for transmitting the sleep graph generated from the sleep evaluation module to the user's mobile terminal after the end of the user's sleep.
According to claim 1, wherein the sleep evaluation module,

If the currently generated first distance data is greater than a threshold, change the currently generated first distance data to the first generated first distance data,

When the currently generated second distance data is greater than the threshold, a sleep care system using a fragrance to change the currently generated second distance data to the second distance data generated just before.
According to claim 1, wherein the fragrance injection device,

Each time the user sleeps, the currently set first to nth fragrance capsules are accumulated and stored by associating the sleep score with the first to nth set values corresponding to the intensity of each fragrance emission,

When the user's next sleep, based on the first to n-th set values associated with the highest sleep score among the accumulated and stored sleep scores, each of the first to n-th fragrance capsules, the intensity of emission of aroma substances Sleep care system using scent to control.
According to claim 1, wherein the fragrance injection device,

After the end of the user's sleep, a questionnaire on subjective evaluation of sleep is transmitted to the mobile terminal of the user, and a subjective score is calculated based on the result of the questionnaire received from the mobile terminal,

determining a final score based on the sleep score and the subjective score;

Based on the final score, a sleep care system using a fragrance to determine a combination of fragrances emitted by individually controlling the emission intensity of each of the first to n-th fragrance capsules.
15. The method of claim 14, wherein the fragrance injection device,

Each time the user sleeps, the first to n-th fragrance capsules currently set are accumulated and stored by associating the final score with the first to n-th set values corresponding to the intensity of each fragrance emission,

When the user's next sleep, based on the first to n-th set values associated with the highest final score among the accumulated and stored final scores, the intensity of each of the first to n-th fragrance capsules is discharged A sleep care system using scent to control.