JP6550257B2 - Sleep state display device, method and program - Google Patents

Description

  The present invention relates to a sleep state display device, method and program for displaying a user's sleep state in an easy-to-understand manner.

  The sleep stage is generally known as an index indicating a sleep state. There are a total of six stages of sleep stages, awakening, REM sleep, and non-REM sleep classified into four stages (Stage I, II, III, IV) as stages conforming to international standards. Such sleep stages are estimated by measuring medical data of the user using a technique such as sleep polygraph test. Also, in recent years, a method has been proposed for estimating the sleep stage based on data that can be easily measured by a heart rate sensor, an acceleration sensor or the like.

  On the other hand, sleep states are known to be affected by various factors such as lifestyle disorder and alcohol drinking. In addition, it is pointed out that the deterioration of the sleep state due to the lack of sleep may reduce the immune function and increase the risk of an accident (see Non-Patent Document 1 and Non-Patent Document 2).

  Therefore, it is important that the user himself / herself grasp the daily sleep state. In particular, it is important to make it easy to notice an abnormal day in sleep state and to alert the user.

  In order to evaluate the sleep state, a plurality of sleep variables calculated from the estimated sleep stage, the sleep time and the like are used. Typical examples of sleep variables are the ratio of each sleep stage to the total sleep time, sleep latency (time from bedtime to sleep), sleep efficiency (ratio of total sleep time to bedtime), And the awakening time, number of times, etc. can be mentioned. A technique has been proposed for displaying a sleep state by presenting the above-described sleep variables on a sleep state display application.

  For example, in Non-Patent Document 3, sleep variables are presented to the user as a chart graph or numerical values. For example, in Non-Patent Document 4, sleep variables are presented to the user as a bar graph or a line graph.

M. Irwin, J. McClintick, C. Costlow, M. Fortner, J. White, and JC Gilllin. "Partial night sleep deprivation reduces natural killer and cellular immunity in humans", The FASEB journal, Vol. pp. 643-653 (1996) N. Goel, H. Rao, J. S. Durmer, and D. F. Dinges, "Neurocognitive Consequences of Sleep Deprivation", Seminar in Neurology, Vol. 29, No. 4, pp. 320-338 (2009) “Sleep Meister,” an app that supports comfortable sleeping, has appeared! ”, Netgeek-biz <URL: http://netgeek.biz/archives/1097> Sleep Meter Sleep Scan SL-504 Catalog (August 2012) <URL: http://www.tanita.co.jp/cms/common/pdf/catalog/sl504.pdf>

  However, the prior art does not usually have any problem in particular, but according to the study of the present inventor, improvement is made in that it is difficult for the user to intuitively grasp the sleep state because there are multiple sleep variables to be presented. There is room.

  For example, when trying to compare sleep states on different days, in the prior art, it is necessary to compare the sleep variables for each to determine whether the sleep states are good or bad. Therefore, if the number of data to be evaluated becomes enormous, the items to be compared (items including combinations of dates) also become enormous for each sleep variable, and the burden on the user becomes larger.

  That is, the prior art has room for improvement in that the sleep state which can be intuitively grasped can not be displayed while reducing the burden on the user.

  SUMMARY OF THE INVENTION The present invention has been made focusing on the above-mentioned circumstances, and the object of the present invention is a sleep state display device, method, and method for displaying an intuitively understandable sleep state while reducing the burden on the user. To provide the program.

In order to achieve the above object, a first aspect of the present invention comprises the following components. That is, the sleep state display device displays the sleep state based on the reference image including a plurality of element images stored in advance in the memory. Sleep information including biological information and body movement information is input. A plurality of sleep stages are estimated in association with sleep time based on the input sleep information. A plurality of sleep variables are calculated, including the estimated length of sleep time for each sleep stage and the length of total sleep time. The element images are changed in association with the calculated sleep variables and the sleep stages, and a display image is generated from the reference image. The generated display image is displayed as the sleep state . The reference image includes a container shape configured by connecting in the height direction a plurality of first element images defined by at least the height and the width respectively corresponding to the respective sleep stages. The height of each of the first element images is changed according to the ratio of the reference value of the length of the entire sleeping time and the length of the entire sleeping time, and the width of each of the first element images is The display image is finally generated from the reference image by changing it according to the ratio of the sleep time length of the sleep phase corresponding to the element image and the reference value of the sleep time length of the sleep phase . It is a thing.

  In addition, a first aspect of the present invention is characterized by including the following aspects.

  In a second aspect, the reference image includes a rod-shaped second element image defined by at least a length. A portion of the second elemental image is configured to be inserted into the container shape. The above-mentioned sleep variable further including sleep onset latency is calculated. The length of the second element image is changed in accordance with the ratio of reference values for the sleep onset latency and the sleep latency, and finally the display image is generated from the reference image.

  In a third aspect, the second element image includes a plant shape configured by adding a third element image capable of selecting a plurality of colors and / or shapes. The sleep variables are calculated further including sleep quality values. The color and / or shape of the third element image is selected according to the calculated sleep quality value, and finally the display image is generated from the reference image.

  The fourth aspect further calculates at least one of the relaxation degree, the deep sleep rate, the awakening frequency, and the sleep efficiency value based on the sleep information, and sets at least one of the calculated values. Based on the above, the value of the quality of sleep is calculated.

  In a fifth aspect, the reference image includes a plurality of fourth element images representing character shapes respectively associated with the respective sleep stages, and a fifth element image representing sleep time information of the respective sleep stages. The fourth element image corresponding to each sleep stage is selected, the fifth element image representing sleep time information calculated for the sleep stage is generated, and finally the display image is generated from the reference image It is something like that.

  A sixth aspect further selects time information indicated by the display image. The reference image includes a plurality of fourth element images representing character shapes respectively associated with the sleep stages, a sixth element image representing the time information, and a seventh element representing a time-series graph of the sleep stages Includes an image. The fourth element image is selected according to the sleep stage corresponding to the selected time information, the sixth element image corresponding to the selected time information is generated, and the seventh element image is generated. Finally, the display image is generated from the reference image.

  In a seventh aspect, a plurality of motion states are further estimated in association with sleep time based on the input sleep information. The time information indicated by the display image is further selected. The reference image includes a plurality of eighth element images representing character shapes respectively associated with the body movement states, a sixth element image representing the time information, and a time series graph of the body movement states Includes nine element images. The eighth element image is selected according to the physical movement state corresponding to the selected time information, the sixth element image corresponding to the selected time information is generated, and the ninth element image is generated. Finally, the display image is generated from the reference image.

According to a first aspect of the present invention, the sleep state display device calculates a plurality of sleep variables including the estimated length of sleep time of each sleep stage and the length of total sleep time. Based on each calculated sleep variable, a display image is generated from a reference image stored in advance. For this reason, a display image can be generated by reflecting the ratio between a plurality of input sleep variables and a reference value on a reference image. Therefore, the generated display image can display the relative difference with the reference values of the plurality of sleep variables as a change from the reference image to the user, so that the user can intuitively grasp the sleep state it can. Also, the reference image can represent an object that exists in daily life that can be easily grasped by the user. Therefore, by integrating an object represented as a display image into one icon, it is possible to reduce the burden on the user in grasping the sleep state. In addition, the reference image includes a container shape configured by connecting in the height direction a plurality of first element images defined by at least the height and the width respectively corresponding to the respective sleep stages. For this reason, the icon displayed as a display image for the user can be represented, for example, as a container shape (for example, a bottle, a cup) formed by connecting a plurality of shapes. Therefore, the user can intuitively grasp the change of the sleep state as the change of the shape of the bottle, the cup or the like.

  According to a second aspect, the reference image includes a reference image including a rod-shaped second element image defined by at least a length, and a portion of the second element image is inserted into the container shape. Configured In addition, the above-mentioned sleep variable further including sleep onset latency is calculated. For this reason, in addition to the sleep time of each sleep stage, etc., sleep latency can be further used as a sleep variable when the user grasps the sleep state. In addition, the icon displayed as a display image to the user can be represented as a rod-like object such as a straw inserted in a container shape such as a bottle or a cup or a stem of a plant. Therefore, the user can intuitively grasp the change of the sleep state as the change of the container shape and the rod-like object.

  According to the third aspect, the reference image includes a plant shape configured by adding the third element image. In addition, the above-mentioned sleep variable further including sleep quality value is calculated. For this reason, as the sleep variable when the user grasps the sleep state, it is possible to further use the sleep quality value in addition to the sleep time of each sleep stage and the sleeping delay time. Moreover, the icon displayed as a display image for a user can be represented as a plant which has a flower inserted in container shape. Therefore, the user can intuitively grasp the change of the sleep state as the change of the container shape and the plant shape.

  According to the fourth aspect, at least one of the degree of relaxation, the deep sleep rate, the number of wakefulness, and the sleep efficiency is further calculated based on the sleep information, and at least one of the calculated values is calculated. Based on the above, the value of the above-mentioned sleep quality is calculated. For this reason, the shape and / or color of the flower selected as the third element image can be selected stepwise according to the sleep quality value.

  According to the fifth aspect, the reference image includes a plurality of fourth element images representing the character shape respectively associated with each sleep stage, and a fifth element image representing sleep time of each sleep stage. For this reason, when a user grasps a sleep state, it can replace with a sleep variable and can use a character shape showing each sleep stage. In addition, quantitative information on each sleep stage can be intuitively grasped by further using information on the sleeping time for the character shape.

  According to the sixth aspect, the time information indicated by the display image is further selected. In addition, the reference image includes a plurality of fourth element images representing character shapes respectively associated with the respective sleep stages, a sixth element image representing time information, and a seventh element image representing a time series graph of each sleep stage. Including. For this reason, when a user grasps a sleep state, it can replace with a sleep variable and can use a character shape showing each sleep stage. In addition, the sleep state can be intuitively grasped by selecting the time represented by the display image and displaying the selected time information and the character shape corresponding to the time information. Furthermore, the transition of the sleep stage in the entire sleep time can be grasped by simultaneously displaying the time series graph of the sleep stage.

  According to the seventh aspect, based on the input sleep information, a plurality of body motion states are further associated with sleep time and further estimated, and time information indicated by the display image is further selected. In addition, the reference image includes a plurality of eighth element images representing character shapes respectively associated with each motion state, a sixth element image representing time information, and a ninth element representing a time series graph of each motion state. Includes an image. Therefore, when the user grasps the motion state, it is possible to use a character shape representing each motion state instead of the sleep variable. In addition, the sleep state can be intuitively grasped by selecting the time represented by the display image and displaying the selected time information and the character shape corresponding to the time information. Furthermore, by displaying the time series graph of the motion state further simultaneously, it is possible to grasp the transition of the motion state in the entire sleep time.

  That is, according to the present invention, it is possible to provide a sleep state display device, method and program which can display a sleep state which can be intuitively grasped while reducing the burden on the user.

It is a block diagram which shows an example of a function structure of the sleep state display apparatus which concerns on the 1st Embodiment of this invention. It is a schematic diagram which shows an example of the reference | standard image in the embodiment. It is a schematic diagram which shows an example of the display image in the embodiment. It is a flowchart which shows an example of operation | movement of the sleep state display apparatus in the embodiment. It is a schematic diagram which shows an example of the display image which concerns on the 2nd Embodiment of this invention. It is a schematic diagram which shows an example of the 3rd element image which concerns on the 3rd Embodiment of this invention. It is a schematic diagram which shows an example of the feature-value which calculates the degree of relaxation in the embodiment. It is a schematic diagram which shows an example of calculation table of the degree of relaxation in the embodiment. It is a schematic diagram which shows an example of the display image in the embodiment. It is a schematic diagram which shows an example of the display image which concerns on the 4th Embodiment of this invention. It is a block diagram which shows an example of a function structure of the sleep state display apparatus which concerns on the 5th Embodiment of this invention. It is a schematic diagram which shows an example of the display image in the embodiment. It is a flowchart which shows an example of operation | movement of the sleep state display apparatus in the embodiment. It is a block diagram which shows an example of a function structure of the sleep state display apparatus which concerns on the 6th Embodiment of this invention. It is a schematic diagram which shows an example of the display image in the embodiment. It is a flowchart which shows an example of operation | movement of the sleep state display apparatus in the embodiment. It is a schematic diagram which shows an example of the display image in the modification of each embodiment of this invention.

  Hereinafter, several embodiments according to the present invention will be described with reference to the drawings. Note that the sleep state display device used in each embodiment can be implemented with either a hardware configuration or a combined configuration of hardware resources and software. As software of the combined configuration, a program installed in advance in each computer from a network or storage medium, and using a program for causing each computer to realize the function of the sleep state display device. The sleep state display device of each embodiment may be implemented as a stand-alone user terminal or may be implemented as a server device in a client server system. In addition, the sleep state display device of each embodiment may be implemented as each of a plurality of processing execution devices selected at low load in a cloud computing system such as a private cloud or a public cloud.

First Embodiment
FIG. 1 is a schematic view showing a functional configuration of a sleep state display device according to a first embodiment of the present invention. The sleep state display device 1 includes a storage unit 10, a sleep information input unit 20, a sleep stage estimation unit 30, a sleep variable calculation unit 40, a display image generation unit 50, and a sleep state display unit 60. That is, the sleep state display device 1 has a function of displaying a sleep state based on a reference image including a plurality of element images stored in advance in a memory.

  The storage unit 10 is a memory readable / writable from each unit, and stores in advance a reference image including a plurality of element images. In addition, the storage unit 10 includes the sleep information input to the sleep information input unit 20, the sleep stage information of the sleep stage estimated by the sleep stage estimation unit 30, the sleep variable calculated by the sleep variable calculation unit 40, and the display The display image or the like generated by the image generation unit 50 may be stored as appropriate. In addition, each information output from each part is mentioned later. Further, in the present specification, "... image" may be read as "... image data".

  The element image constitutes a reference image used when displaying the sleep state, and is stored in advance in the storage unit 10. Although an image representing an arbitrary shape is applicable as the reference image, it is desirable to include an image of an object existing in the real world, from the viewpoint that the user can easily grasp the sleep state intuitively.

  For example, as shown in FIG. 2, the reference image is a container formed by connecting a plurality of shapes (eg, side shape or cross-sectional shape) representing each portion (eg, opening, taper, body, bottom, etc.) of the container. It may include a shape. The container shape may be configured by connecting in the height direction a plurality of first element images defined by at least the height and the width respectively corresponding to the respective sleep stages. In addition, the container shape may be expressed by, for example, a concave shape (for example, a cross-sectional shape) such as a bottle or a cup, as long as it is a shape formed by connecting a plurality of shapes. It may be expressed in a shape (eg, an appearance shape).

  In the example shown in FIG. 2, the sleep stages are classified into four stages of wakefulness (Wake), REM (Rapid Eye Movement) sleep, light sleep (Light sleep), and deep sleep (Deep sleep). There is. Therefore, the reference image is composed of four first element images. In addition, each sleep stage shows that the sleep is deep in order of awakening, rem sleep, shallow sleep, and deep sleep. That is, the lower the first element image in the height direction, the deeper the sleep corresponds to the sleep stage.

  Here, halfway awake indicates a sleep stage excluding the period from getting a bed to entering a sleep state among the sleep stages classified as awake. Shallow sleep indicates a sleep state classified into stages I to II of non-REM sleep. Deep sleep refers to sleep states classified into stages III to IV of non-REM sleep.

In addition, the plurality of first element images in FIG. 2 have a shape defined by at least the height and the width, and (height, width) are (h ₁ , w ₁ ) in order from the top in the height direction. ), (H ₂ , w ₂ ), (h ₃ , w ₃ ), (h ₄ , w ₄ ). Further, the reference image in FIG. 2 is configured by connecting the respective first element images in the height direction, and the height (H) of the reference image is the height (h ₁ , h of each first element image) It is defined as the sum of ₂ , h ₃ and h ₄ ).

  The first element image does not have to be rectangular, and an image in which an arbitrary shape is defined by an arbitrary variable can be appropriately used. Specifically, the first element image may have a trapezoidal shape like the second top first element image in FIG. In addition, the first element image may have a shape including a curve. In addition, each first element image may be different in color from one first element image to another so that the difference in sleep stage can be easily recognized.

  The sleep information input unit 20 receives an input of sleep information including biological information and body motion information acquired during sleep, and transmits the sleep information having received the input to the sleep stage estimation unit 30. The sleep information input unit 20 may store sleep information in the storage unit 10.

  Here, the biological information is time-series data of biological signals acquired from the subject and indicating heartbeats from bedtime to getting up, electroencephalograms, myoelectricity, electrooculogram, respiration and the like. The body movement information is time-series data of a body movement signal acquired from the subject and indicating an acceleration or the like from sleeping to getting up. The "subject" may be called a "subject".

  The sleep information input unit 20 may receive biological information and body motion information edited as time series data. In addition, the sleep information input unit 20 may directly receive the output signal of the sensor that measures the biological signal and the body movement signal, and convert it into biological information and body movement information as time series data.

  The sleep stage estimation unit 30 receives sleep information from the sleep information input unit 20, and estimates a plurality of sleep stages in association with a sleep time based on the sleep information. The sleep stage estimation unit 30 may generate sleep stage estimation information in which the estimated transitions of each sleep stage are associated with time series, and may store the sleep stage estimation information in the storage unit 10. The sleep stage estimation unit 30 transmits the generated sleep stage estimation information to the sleep variable calculation unit 40.

  Note that the sleep stage estimation unit 30 may estimate each sleep stage by automatically determining each sleep stage in the sleep time according to a predetermined determination algorithm based on the sleep information. In addition, the sleep stage estimation unit 30 may estimate the sleep stages by displaying the sleep information on a screen (not shown) to facilitate visual judgment by a professional technician and inputting the sleep stage determination input result.

The sleep variable calculation unit 40 receives the sleep stage estimation information from the sleep stage estimation unit 30, and the estimated sleep time length (T ₁ , T ₂ , T ₃ , T ₄ ) of each sleep stage and the entire sleep Calculate multiple sleep variables including length of time (SPT). The sleep variable calculation unit 40 transmits each calculated sleep variable to the display image generation unit 50. In addition, the sleep variable calculation unit 40 may store each calculated sleep variable in the storage unit 10.

Here, T ₁ is the length of mid-wake time, T ₂ is the length of REM sleep time, T ₃ is the length of shallow sleep time, and T ₄ is the deep sleep time It is a length. SPT is the length of time from sleep onset to wake up. The unit of time can be arbitrarily selected, but is preferably calculated, for example, in minutes.

In addition, the sleep variable calculation unit 40 is not limited to the length of sleep time (T ₁ , T ₂ , T ₃ , T ₄ ) and the total length of sleep time (SPT) of each sleep stage, and various variables may be used. It can be calculated. Specifically, the sleep variable calculation unit 40 may calculate the occupancy (v ₁ , v ₂ , v ₃ , v ₄ ) that each sleep stage occupies in the whole.

Here, v ₁ , v ₂ , v ₃ and v ₄ are respectively the awakening time (T ₁ ), rem sleep time (T ₂ ), shallow sleep time (T ₃ ) and deep sleep time (T ₄ ). The occupancy rate in the sleep time length (SPT) of

  The display image generation unit 50 receives the calculated sleep variables from the sleep variable calculation unit 40, and generates a display image from the reference image based on the calculated sleep variables. The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

Specifically, the display image generation unit 50 reads the reference image as shown in FIG. 3A from the storage unit 10. The display image generation unit 50 sets the height (h ₁ , h ₂ , h ₃ , h ₄ ) of each first element image in the reference image to the total sleep time length (SPT) and the total sleep time The height (h ₁ ′, h ₂ ′, h ₃ ′, h ₄ ′) of each first element image in the display image is changed according to the ratio (α) of the reference value (SPT _s ) of the length of time Calculate). In addition, the display image generation unit 50 sets the widths (w ₁ , w ₂ , w ₃ , w ₄ ) of the first element images in the reference image to the sleep time of the sleep stage corresponding to the first element images. Change according to the ratio (β) of the length (T ₁ , T ₂ , T ₃ , T ₄ ) and the reference value (T _1s , T _2s , T _3s , T _4s ) of the length of sleep time in the relevant sleep stage The widths (w ₁ ′ ′, w ₂ ′ ′, w ₃ ′ ′, w ₄ ′ ′) of the first element images in the display image are calculated.

In addition, the display image generation unit 50 sets the width (w ₁ , w ₂ , w ₃ , w ₄ ) of each first element image in the reference image to the total sleep time length (SPT) and the total sleep time. The width (w ₁ ', w ₂ ', w ₃ ', w ₄ ') of each first element image in the display image is changed according to the ratio (α) of the reference value (SPT _s ) of the length of time May be calculated.

Each reference value (SPT _s , T _1s , T _2s , T _3s , T _4s ) may be stored in advance in the storage unit 10. Further, the reference value _{(SPT s, T 1s, T} 2s, T 3s, T 4s) , the average value and few days of each sleep variables of the user may be calculated from the average value of each age.

The heights (h ₁ ′, h ₂ ′, h ₃ ′, h ₄ ′) and the widths (w ₁ ′, w ₂ ′, w ₃ ) of the first element images in the display image calculated above are _{', w 4'), (} w 1 ", w 2", w 3 ", w 4") is expressed by the following equation.

Here, H ′ is the height of the display image, and i is an integer of 1 ≦ i ≦ 4. v _is is a reference value of occupancy occupied by the length of sleep time of each sleep stage to the length of the entire sleep time.

Note that the display image generation unit 50 substitutes the sleep time length (T ₁ , T ₂ , T ₃ , T ₄ ) in the sleep stage as a sleep variable, and the occupancy rate in each sleep stage (v ₁₎ , V ₂ , v ₃ , v ₄ ) may be used to generate a display image. In this case, the height of each first component image in the display image _{(h 1 ', h 2'} , h 3 ', h 4'), and the width _{(w 1 ', w 2'} , w 3 ', w 4 ') And (w ₁ ', w ₂ ', w ₃ ', w ₄ ') are represented by the following formulas.

In any case, the display image generation unit 50 determines the height (h ₁ ′, h ₂ ′, h ₃ ′, h ₄ ′) and the width (w ₁ ) of each first element image in the calculated display image. _{', w 2', w 3} ', w 4'), (w 1 ", w 2", w 3 ", w 4" based on), eventually FIG from the reference image such shown in FIG. 3 (a) A display image as shown in 3 (B) is generated.

  According to the display image generated in the present embodiment, by focusing on the change in height from the reference image, the length of the entire sleep time based on the sleep information relative to the reference value of the length of the entire sleep time The user can intuitively grasp. In addition, according to the generated display image, the sleep information with respect to the reference value of the length of the sleep time of each sleep stage by noting the change in the width of the bottom and the middle of each first element image in the display image The user can intuitively grasp the length of sleep time of each sleep stage based on.

  The sleep state display unit 60 receives the generated display image from the display image generation unit 50, and displays the display image on a screen (not shown).

  Next, the operation of the sleep state display device configured as described above will be described using the flowchart shown in FIG. In the following description, it is assumed that the reference image shown in FIG. 3 (A) is stored in advance in the storage unit 10 of the sleep state display device 1, and the display image generation unit 50 is shown in FIG. Suppose that a display image is generated.

  First, the sleep information input unit 20 inputs sleep information including biological information and body movement information (ST110), and transmits the sleep information to the sleep stage estimation unit 30.

  The sleep stage estimation unit 30 receives the input sleep information, and estimates a plurality of sleep stages in association with the sleep time based on the sleep information (ST120). The sleep stage estimation unit 30 generates sleep stage estimation information based on each estimated sleep stage, and transmits the sleep stage estimation information to the sleep variable calculation unit 40.

  The sleep variable calculation unit 40 receives the sleep stage estimation information, and calculates a plurality of sleep variables including the estimated sleep time length of each sleep stage and the total sleep time length (ST130). The sleep variable calculation unit 40 transmits each calculated sleep variable to the display image generation unit 50.

  The display image generation unit 50 receives each of the calculated sleep variables, and generates a display image from the reference image based on each of the sleep variables (ST 140).

  Here, the reference image includes a container shape configured by connecting in the height direction a plurality of first element images defined by at least the height and the width respectively corresponding to the estimated sleep stages.

  The display image generation unit 50 reads the reference image from the storage unit 10, and generates a display image from the reference image. Specifically, the display image generation unit 50 changes the height of each first element image according to the length of the entire sleep time and the ratio of the reference value of the length of the entire sleep time. In addition, the display image generation unit 50 sets the width of each first element image to the ratio of the reference sleep time length of the sleep stage corresponding to each first element image and the sleep time length of the sleep stage. Change according to. The display image generation unit 50 finally generates a display image from the reference image based on the height and width of each of the changed first element images.

  The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image, and displays the display image as a sleep state (ST150).

  As described above in detail, in the first embodiment, the sleep state display device 1 displays the sleep state based on an image including a plurality of element images stored in advance in the storage unit 10. The sleep information input unit 20 inputs sleep information including biological information and body movement information. The sleep stage estimation unit 30 estimates a plurality of sleep stages in association with the sleep time based on the input sleep information. The sleep variable calculating unit 40 calculates a plurality of sleep variables including the length of the sleeping time of each of the estimated sleep stages and the length of the entire sleeping time. The display image generation unit 50 generates a display image from the reference image based on the calculated sleep variables. The sleep state display unit 60 displays the generated display image as the sleep state. For this reason, a display image can be generated by reflecting the ratio between a plurality of input sleep variables and a reference value calculated from the input value and the average value or the like in the reference image. Therefore, the generated display image can display the relative difference with the reference values of the plurality of sleep variables as a change from the reference image to the user, so that the user can intuitively grasp the sleep state it can. Also, the reference image can represent an object that exists in daily life that can be easily grasped by the user. Therefore, by integrating an object represented as a display image into one icon, it is possible to reduce the burden on the user in grasping the sleep state.

  In addition, specifically, the reference image has a container shape configured by connecting a plurality of first element images defined by at least the height and the width corresponding to the respective sleep stages in the height direction. Including. The display image generation unit 50 changes the height of each of the first element images according to the ratio of the reference value of the length of the entire sleep time and the length of the entire sleep time, The width of the element image is changed according to the ratio of the sleep time length of the sleep stage corresponding to each first element image and the reference value of the sleep time length of the sleep stage, and finally the above-mentioned reference picture The display image is generated. Therefore, the icon displayed as the display image to the user can be represented as a container shape such as a bottle or a cup. Therefore, the user can intuitively grasp the change of the sleep state as the change of the shape of the bottle or the cup.

  Therefore, it is possible to display an intuitively understandable sleep state while reducing the burden on the user.

Second Embodiment
In the second embodiment, a sleep state is further generated by generating a display image based on a reference image configured to insert a bar-like object into an object representing the container shape in the first embodiment. It is configured to be easy to understand. Specifically, the functional configuration of the sleep state display device 1 is the same as the functional configuration shown in FIG. In the following, the same parts as in FIG. 1 will be assigned the same reference numerals, and the detailed description thereof will be omitted, and different parts will be mainly described.

  The storage unit 10 stores a reference image including a rod-shaped second element image defined by at least a length, in addition to a container shape configured by connecting a plurality of first element images in the height direction.

  That is, as shown in FIG. 5A, in addition to the container shape portion 100a, the reference image includes a second element image representing the rod-like portion 101a defined by at least the length. The rod-like portion 101a represented as the second element image may be represented in the shape of a straw or a stem of a plant. Along with this, the container shape part 100a may be expressed as a shape like a cup or a glass, or may be expressed as a shape like a vase or a bowl. In addition, the container-shaped portion 100a is filled with a liquid such as water to the extent that the rod-shaped portion 101a inserted therein can be visually recognized so that the user can easily understand the relationship between the container-shaped portion 100a and the rod-shaped portion 101a. It may be expressed as it is.

  Also, the second element image may constitute a reference image such that a part of the second element image is inserted into the container shape. In this case, the length defined in the second element image representing the rod-shaped portion 101a may be defined as the length (sl) of the portion of the rod-shaped portion 101a inserted into the inside of the container-shaped portion 100a.

The sleep variable calculation unit 40 receives the sleep stage estimation information from the sleep stage estimation unit 30, and the estimated sleep time length (T ₁ , T ₂ , T ₃ , T ₄ ) of each sleep stage and the entire sleep In addition to the length of time (SPT), a plurality of sleep variables are calculated, which further include Sleep Latency (SL). The sleep onset latency can be defined as an arbitrary length of time as an index representing good sleep, but as an example, it may be defined as the length of awakening time from bedtime to sleep onset. The sleep variable calculation unit 40 transmits each calculated sleep variable to the display image generation unit 50. In addition, the sleep variable calculation unit 40 may store each calculated sleep variable in the storage unit 10.

  The display image generation unit 50 receives the calculated sleep variables from the sleep variable calculation unit 40, and generates a display image from the reference image based on the calculated sleep variables. The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  Specifically, the display image generation unit 50 reads out from the storage unit 10 a reference image representing the rod-like portion 101a which is partially inserted into the container shape portion 100a as shown in FIG. 5 (A). The display image generation unit 50 changes the container shape portion 100a into a container shape portion 100b as shown in FIG. 5 (B). The function of changing the container shape portion 100a to the container shape portion 100b is the same as that of the first embodiment, and thus the description thereof is omitted here.

The display image generation unit 50 changes the rod-shaped portion 101a into a rod-shaped portion 101b as shown in FIG. 5 (B). Specifically, the display image generation unit 50 changes the length (sl) of the second element image according to the ratio (γ) of the sleep latency (SL) and the sleep latency (SL _s ). , Calculate the length (sl ') of the second element image in the display image.

The reference value (SL _s ) at the onset of sleep onset may be calculated in advance and stored in the storage unit 10 or the like. In addition, the reference value (SL _s ) of sleep latency may be calculated from an average value of several sleep variables of the user for several days, an average value of each age, or the like.

  The length (SL ′) of the second element image in the display image calculated in the above is expressed by the following equation.

The display image generation unit 50 determines the height (h ₁ ′, h ₂ ′, h ₃ ′, h ₄ ′) and the width (w ₁ ′, w ₂ ′) of each first element image in the calculated display image. _{, w 3 ', w 4'} ), (w 1 ", w 2", w 3 ", w 4" based on a), the length of the second element image and (sl '), and finally 5 ( From the reference image as shown in A), a display image as shown in FIG. 5 (B) is generated.

  According to the display image generated in the present embodiment, by focusing on the change in the length of the rod-like portion 101b, the user can determine the length of the sleep latency based on the sleep information with respect to the reference value of the length of the sleep latency. Can intuitively understand.

  Next, the operation of the sleep state display device configured as described above will be described using the flowchart shown in FIG. In the following description, it is assumed that the reference image shown in FIG. 5 (A) is stored in advance in the storage unit 10 of the sleep state display device 1, and the display image generation unit 50 is shown in FIG. Suppose that a display image is generated.

  The sleep state display device 1 inputs sleep information (ST110), and estimates a plurality of sleep stages in association with sleep time based on the sleep information (ST120). In addition, since operation | movement of step ST110-ST120 is the same as that of 1st Embodiment, description is abbreviate | omitted.

  The sleep variable calculating unit 40 receives the sleep stage estimation information and calculates a plurality of sleep variables further including sleep onset latency in addition to the estimated sleep time length and the total sleep time length of each sleep stage. To do (ST130). The sleep variable calculation unit 40 transmits each calculated sleep variable to the display image generation unit 50.

  The display image generation unit 50 receives each of the calculated sleep variables, and generates a display image from the reference image based on each of the sleep variables (ST 140).

  Here, the reference image includes a container shape configured by connecting in the height direction a plurality of first element images defined by at least the height and the width respectively corresponding to the estimated sleep stages. The reference image also includes a rod-shaped second element image defined by at least a length.

  The display image generation unit 50 reads the reference image from the storage unit 10, and generates a display image from the reference image. Specifically, the display image generation unit 50 changes the height of each first element image according to the length of the entire sleep time and the ratio of the reference value of the length of the entire sleep time. In addition, the display image generation unit 50 sets the width of each first element image to the ratio of the reference sleep time length of the sleep stage corresponding to each first element image and the sleep time length of the sleep stage. Change according to.

  The display image generation unit 50 changes the length of the second element image in accordance with the ratio of the sleeping delay time to the reference value at the sleeping delay time. The display image generation unit 50 finally generates a display image from the reference image based on the height and width of each of the changed first element images and the length of the second element image.

  The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image, and displays the display image as a sleep state (ST150).

  As described above in detail, in the second embodiment, the storage unit 10 stores a reference image including a rod-shaped second element image defined by at least a length. A portion of the second elemental image is configured to be inserted into the container shape. The sleep variable calculation unit 40 calculates the above-mentioned sleep variable further including sleep onset latency. The display image generation unit 50 changes the length of the second element image according to the ratio of the reference value for the sleep onset latency and the sleep onset latency, and finally generates the display image from the reference image. I have to. For this reason, in addition to the sleep time of each sleep stage, etc., sleep latency can be further used as a sleep variable when the user grasps the sleep state. In addition, the icon displayed as a display image to the user can be represented as a rod-like object such as a straw inserted in a container shape such as a bottle or a cup or a stem of a plant. Therefore, the user can intuitively grasp the change of the sleep state as the change of the container shape and the rod-like object.

  Therefore, according to the second embodiment, in addition to the effects of the first embodiment, it is possible to display the sleep state based on more sleep information without increasing the burden on the user.

Third Embodiment
In the third embodiment, a display object is generated based on a reference image configured as a plant shape by further adding a flower-like object to the rod-like object in the second embodiment. Furthermore, the sleep state can be displayed in an easy-to-understand manner. Specifically, the functional configuration of the sleep state display device 1 is the same as the functional configuration shown in FIG. In the following, the same parts as in FIG. 1 will be assigned the same reference numerals, and the detailed description thereof will be omitted, and different parts will be mainly described.

  The storage unit 10 has a container shape configured by connecting a plurality of first element images in the height direction, and a plurality of colors and / or shapes respectively corresponding to sleep quality values in a rod-shaped second element image. A reference image including a plant shape configured by adding a selectable third element image is stored.

  That is, as shown in FIGS. 6 (A) to 6 (E), the third element image is a plant shape representing a state of a crucible having a different shape or a state of full bloom, or a state of an arbitrary number of steps such as full bloom. Including. The third element image may represent not only the shape, but also the color, the color, and / or the crucible having different shapes and / or flowers. For example, as the third element image representing the flower shown in FIG. 6E, a plurality of types having different colors such as warm or bright and cold or dark may be stored in the storage unit 10. The second element image may be expressed as a stem shape corresponding to the flower-shaped third element image.

The sleep variable calculation unit 40 receives the sleep stage estimation information from the sleep stage estimation unit 30, and estimates the length of sleep time of each sleep stage (T ₁ , T ₂ , T ₃ , T ₄ ), the entire sleep In addition to the length of time (SPT) and sleep onset latencies (SL), several sleep variables are calculated, which further include sleep quality values. The sleep variable calculation unit 40 transmits each calculated sleep variable to the display image generation unit 50. In addition, the sleep variable calculation unit 40 may store each calculated sleep variable in the storage unit 10.

  The quality of sleep is an index used to objectively grasp the quality of the sleep state, and various indexes can be applied. The sleep variable calculation unit 40 further calculates at least one of the degree of relaxation, the deep sleep rate, the number of wakefulness, and the sleep efficiency based on the sleep information, and sets at least one of the calculated values. Based on the value of sleep quality may be calculated.

  Specifically, the sleep variable calculation unit 40 may calculate the degree of relaxation, and may use the calculated degree of relaxation as the value of the sleep quality. Various methods can be applied to the method of calculating the degree of relaxation. As an example, the degree of relaxation is calculated by calculating a feature amount from sleep information such as heart rate data for several minutes before sleep onset and comparing the calculated feature amount with a predetermined threshold value to obtain a range of the threshold value. It may be associated with a value indicating the corresponding degree of relaxation. Note that as the feature value calculated from the sleep information, for example, as shown in FIG. 7, an index or the like that calculates the degree of activation state of sympathetic nerve activity and / or parasympathetic nerve activity from biological information such as heart rate data is applicable. is there. As an example, when pNN50 (the ratio that the difference between adjacent peak intervals of electrocardiogram data exceeds 50 msec) is used as the feature amount, as shown in FIG. According to the relationship, the degree of relaxation is calculated from the value of pNN50.

  In addition, the sleep variable calculation unit 40 calculates the sleep score obtained by comprehensively scoring the sleep state based on the deep sleep rate or the awakening frequency, and the value of the sleep quality according to the range of the calculated sleep score. May be calculated. The calculation of the sleep score based on the deep sleep rate or the awakening frequency is described in detail in the following documents.

Fumiyoshi Yoshii, Yamamoto Manabu, Toga Iga, Miho Shimizu, Saori Ohara, Toshiaki Sasaki, Yuka Honda, Chiaki Yamatani, “Development of Mat-type Sleep Meter and Evaluation of Sleep State Using Sleep Score”, Sleep Medicine Vol. 6, No.2, pp.361-365 (2012)
In addition, the sleep variable calculation unit 40 may calculate the sleep efficiency, and may calculate the sleep quality value according to the calculated range of the sleep efficiency. Here, the sleep efficiency is a value calculated by the ratio of the total sleep time to the sleep latency.

  The display image generation unit 50 receives the calculated sleep variables from the sleep variable calculation unit 40, and generates a display image from the reference image based on the calculated sleep variables. The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  Specifically, as shown in FIG. 9A, the display image generation unit 50 is a reference image representing a state in which a part of the stem portion 201a to which the flower portion 202a is added is inserted into the container shape portion 200a. Are read from the storage unit 10. The display image generation unit 50 changes the container shape portion 200a and the stem portion 201a into the container shape portion 200b and the stem portion 201b as shown in FIG. 9 (B). The function of changing the container shape portion 200a and the stem portion 201a to the container shape portion 200b and the stem portion 201b is the same as that of the second embodiment, and thus the description thereof is omitted here.

  The display image generation unit 50 changes the flower part 202a to a flower part 202b as shown in FIG. 9 (B). Specifically, the display image generation unit 50 selects the color and / or the shape of the third element image from the third element images stored in the storage unit 10 according to the calculated sleep quality value. Do. When selecting the third element image, the display image generation unit 50 may select the shape of the third element image in a flowering state as the value of the sleep quality is higher. A bright or warm color may be selected for the color. In addition, when selecting the third element image, the display image generation unit 50 may select a shape close to the state of a bump in the shape of the third element image as the sleep quality value decreases. A dark or cold color may be selected for the color of the element image.

The display image generation unit 50 determines the height (h ₁ ′, h ₂ ′, h ₃ ′, h ₄ ′) and the width (w ₁ ′, w ₂ ′) of each first element image in the calculated display image. _{, w 3 ', w 4'} ), and _{(w 1 ", w 2"} , w 3 ", w 4"), the length of the second element image and (sl '), and a third element selected images Finally, based on the reference image as shown in FIG. 9A, the display image as shown in FIG. 9B is generated.

  According to the display image generated in the present embodiment, the user can intuitively grasp the quality of sleep by noting the change in the color and / or the shape of the selected flower part 202 b.

  Next, the operation of the sleep state display device configured as described above will be described using the flowchart shown in FIG. In the following description, it is assumed that the reference image and the other plural third element images shown in FIG. 9A are stored in advance in the storage unit 10 of the sleep state display device 1; Is to generate the display image shown in FIG. 9 (B).

  The sleep state display device 1 inputs sleep information (ST110), and estimates a plurality of sleep stages in association with sleep time based on the sleep information (ST120). In addition, since operation | movement of step ST110-ST120 is the same as that of 2nd Embodiment, description is abbreviate | omitted.

  The sleep variable calculation unit 40 receives the sleep stage estimation information, and in addition to the estimated sleep duration of each sleep stage, the overall sleep time, and the sleep latency, a plurality of sleep variables further including sleep quality Calculate (ST130).

  The sleep variable calculation unit 40 further calculates at least one of the relaxation degree, the deep sleep rate, the number of wakefulness, and the sleep efficiency based on the sleep information, and at least one of the calculated values. The sleep quality value may be calculated based on one.

  The sleep variable calculation unit 40 transmits each calculated sleep variable to the display image generation unit 50.

  The display image generation unit 50 receives each of the calculated sleep variables, and generates a display image from the reference image based on each of the sleep variables (ST 140).

  Here, the reference image includes a container shape configured by connecting in the height direction a plurality of first element images defined by at least the height and the width respectively corresponding to the estimated sleep stages. The reference image also includes a rod-shaped second element image defined by at least a length. In addition, the second element image includes a plant shape configured by adding a third element image capable of selecting a plurality of colors and / or shapes.

  The display image generation unit 50 reads the reference image from the storage unit 10, and generates a display image from the reference image. Specifically, the display image generation unit 50 changes the height of each first element image according to the length of the entire sleep time and the ratio of the reference value of the length of the entire sleep time. In addition, the display image generation unit 50 sets the width of each first element image to the ratio of the reference sleep time length of the sleep stage corresponding to each first element image and the sleep time length of the sleep stage. Change according to.

  The display image generation unit 50 changes the length of the second element image in accordance with the ratio of the sleeping delay time to the reference value at the sleeping delay time.

  The display image generation unit 50 selects the color and / or the shape of the third element image according to the calculated sleep quality value. The display image generation unit 50 finally generates a display image from the reference image based on the height and width of each of the changed first element images, the length of the second element image, and the selected third element image. Do.

  The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image, and displays the display image as a sleep state (ST150).

  As described above in detail, in the third embodiment, the storage unit 10 further stores the third element image capable of selecting a plurality of colors and / or shapes. The reference image includes a plant shape configured by adding the third element image. The sleep variable calculation unit 40 calculates the above-mentioned sleep variable further including the value of the sleep quality. The display image generation unit 50 selects the color and / or the shape of the third element image according to the calculated sleep quality value, and finally generates the display image from the reference image. There is. For this reason, as the sleep variable when the user grasps the sleep state, it is possible to further use the sleep quality value in addition to the sleep time of each sleep stage and the sleeping delay time. Moreover, the icon displayed as a display image for a user can be represented as a plant which has a flower inserted in container shape. Therefore, the user can intuitively grasp the change of the sleep state as the change of the container shape and the plant shape.

  The sleep variable calculation unit 40 further calculates at least one of the relaxation degree, the deep sleep rate, the number of wakefulness, and the sleep efficiency based on the sleep information, and at least one of the calculated values. Based on one, the above-mentioned sleep quality value is calculated. For this reason, the shape and / or color of the flower selected as the third element image can be selected stepwise according to the sleep quality value.

  Therefore, according to the third embodiment, in addition to the effects of the second embodiment, sleep states based on more sleep information can be displayed without increasing the burden on the user.

Fourth Embodiment
The fourth embodiment is a modification of the first embodiment, and instead of the container shape, it is based on a character shape corresponding to each sleep stage and a reference image representing the sleep time of each sleep stage. The display image can be generated. Specifically, the functional configuration of the sleep state display device 1 is the same as the functional configuration shown in FIG. In the following, the same parts as in FIG. 1 will be assigned the same reference numerals, and the detailed description thereof will be omitted, and different parts will be mainly described.

  The storage unit 10 represents a plurality of fourth element images representing the character shape 300a respectively associated with each sleep stage as shown in FIGS. 10A to 10C, and sleep time information 300b of each sleep stage. The reference image including the fifth element image is stored.

  That is, the fourth element images respectively illustrated in FIGS. 10A to 10C are images of the character shape 300a respectively associated with the awake state, the REM sleep, and the sleep stages of the non-REM sleep. The fifth element images respectively shown in FIGS. 10 (A) to 10 (C) are images representing sleep time information 300b in the awake state, REM sleep, and sleep stages of non-REM sleep.

  In the fourth element image, an image of a character shape is used to convey the meaning of each sleep stage qualitatively intelligibly to the user. Each character shape associated with each sleep stage used in the fourth element image may be unified with one character. Further, the fourth element image may be expressed in the awake state in which the character is awake, and in the case of REM sleep or shallow sleep, the state in which the character is dreaming, or the body It may be expressed in a state where is slightly inclined. During non-REM sleep or deep sleep, the character of the character may be completely leveled, or a symbol indicating sleeping well, such as “zzz”, may be added.

  In addition, the fifth element image uses an image that quantitatively represents the sleep time in each sleep stage associated with each fourth element image. The fifth element image may be configured to be able to display any sleep time in a frame.

  The display image generation unit 50 receives the calculated sleep variables from the sleep variable calculation unit 40, and generates a display image from the reference image based on the calculated sleep variables. The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  Specifically, display image generation unit 50 reads from storage unit 10 a reference image representing character shape 300 a and sleep time information 300 b as shown in FIGS. 10 (A) to 10 (C). The display image generation unit 50 selects the fourth element image corresponding to each sleep stage, and generates a fifth element image representing the sleep time calculated for the sleep stage. The display image generation unit 50 finally generates a display image as shown in FIGS. 10A to 10C from the reference image based on the selected fourth element image and the generated fifth element image.

  According to the display image generated in the present embodiment, quantitative determination by the sleep time displayed in each sleep stage by the user qualitatively recognizing each sleep stage associated with the character according to the state of the character The user can intuitively understand the sleep state, including vital information.

  Next, the operation of the sleep state display device configured as described above will be described using the flowchart shown in FIG. In the following description, it is assumed that the reference image of the character shape 300a and the sleep time information 300b is stored in advance in the storage unit 10 of the sleep state display device 1, and the display image generation unit 50 is shown in FIG. It is assumed that a display image shown in (C) is generated.

  The sleep state display device 1 inputs sleep information (ST110), estimates a plurality of sleep stages in association with the sleep time based on the sleep information, and estimates the sleep time length of each sleep stage estimated; And calculate a plurality of sleep variables including the total sleep time (ST130). In addition, since operation | movement of step ST110-ST130 is the same as that of 1st Embodiment, description is abbreviate | omitted.

  The display image generation unit 50 receives each of the calculated sleep variables, and generates a display image from the reference image based on each of the sleep variables (ST 140).

  Here, the reference image includes a plurality of fourth element images representing character shapes respectively associated with the respective sleep stages, and a fifth element image representing sleep time of each sleep stage.

  The display image generation unit 50 reads the reference image from the storage unit 10, and generates a display image from the reference image. Specifically, the display image generation unit 50 selects the fourth element image corresponding to each sleep stage, and generates a fifth element image representing the sleep time calculated for the sleep stage. The display image generation unit 50 finally generates a display image from the reference image based on the selected fourth element image and the generated fifth element image.

  The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image, and displays the display image as a sleep state (ST150).

  As described above in detail, in the fourth embodiment, the storage unit 10 includes a plurality of fourth element images representing character shapes respectively associated with the respective sleep stages, and a fifth representing sleep times of the respective sleep stages. Contains elemental images. The display image generation unit 50 selects the fourth element image corresponding to each sleep stage, generates the fifth element image representing the sleep time calculated for the sleep stage, and finally generates the display image from the reference image I am trying to do it. For this reason, when a user grasps a sleep state, it can replace with a sleep variable and can use a character shape showing each sleep stage. Also, by using the character shape and the sleep time information in association with the sleep stage, it is possible to intuitively grasp the qualitative sleep stage by the character shape and the quantitative information on each sleep stage. .

  Therefore, according to the fourth embodiment, it is possible to display an intuitively understandable sleep state while reducing the burden on the user.

Fifth Embodiment
The fifth embodiment is a modification of the first embodiment, and instead of the container shape, the character shape respectively associated with each sleep stage, the time information indicated by the display image, and the time series of each sleep stage A display image can be generated based on a reference image representing a graph. FIG. 11 is a schematic view showing a functional configuration of the sleep state display device 1 according to the fifth embodiment. In the following, the same parts as in FIG. 1 will be assigned the same reference numerals, and the detailed description thereof will be omitted, and different parts will be mainly described.

  The sleep state display device 1 further includes a display time information selection unit 70 in addition to the configuration shown in FIG.

  When the display image generation unit 50 generates a display image, the display time information selection unit 70 selects time information indicated by the display image. The display time information selection unit 70 transmits the selected time information to the display image generation unit 50.

  The display time information selection unit 70 may select predetermined time information, or may select time information based on time information input by the user from a time information input unit (not shown). The display time information selection unit 70 may continuously change the selected time information in a predetermined order, and continuously transmit the continuously changed time information to the display image generation unit 50. You may

  The storage unit 10 includes a plurality of fourth element images representing character shapes respectively associated with the respective sleep stages, a sixth element image representing time information indicated by the display image, and a seventh time series graph of each sleep stage. The reference image including the element image is stored.

  The display image generation unit 50 receives each calculated sleep variable from the sleep variable calculation unit 40, and receives the selected time information from the display time information selection unit 70. The display image generation unit 50 generates a display image from the reference image based on the calculated sleep variables and the selected time information. The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  Specifically, the display image generation unit 50 reads a reference image including the fourth element image, the sixth element image, and the seventh element image from the storage unit 10, and generates a display image illustrated in FIG. The display image generation unit 50 selects a fourth element image representing a character shape 400a corresponding to the sleep stage corresponding to the selected time information. The display image generation unit 50 generates a sixth element image representing time information 400b corresponding to the selected time information and a seventh element image representing the time series graph 400c of each sleep stage. The display image generation unit 50 finally generates a display image from the reference image based on the selected fourth element image and the generated sixth element image and seventh element image.

  That is, the fourth element image illustrated in FIG. 12 is an image representing a character shape 400a associated with the sleep stage of non-REM sleep. The sixth element image illustrated in FIG. 12 is an image representing time information 400 b when “3:30” is selected as time information. The seventh element image illustrated in FIG. 12 is an image representing a time-series graph 400 c representing transition of the sleep stage from going to bed to getting up.

  As the fourth element image, an image of a character shape is used to convey the meaning of each sleep stage qualitatively and intelligibly to the user, as in the fourth embodiment. Further, the sixth element image uses an image that quantitatively represents the selected time information. The sixth element image may represent time as a numerical value, may represent the selected time as a clock or the like, and may indicate the selected time by pointing a time axis in the seventh element image. May be configured. Also, the seventh element image may be configured in any format capable of displaying the transition of the sleep stage in time series, not limited to the line graph.

  When the time information is continuously received from the display time information selection unit 70, the display image generation unit 50 continuously selects the fourth element image according to the continuously received time information, and the sixth element An image may be generated. The display image generation unit 50 may continuously transmit the display image generated continuously to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image from the display image generation unit 50, and displays the display image on a screen (not shown). When the display state is continuously received from the display image generation unit 50, the sleep state display unit 60 may continuously display the received display image. In this case, the sleep state display unit 60 may display the sleep state to the user by reproducing the time change of the sleep stage like a moving picture by continuously changing the display image.

  According to the display image generated in the present embodiment, the user intuitively recognizes the sleep state in the selected time information by the user qualitatively recognizing the state of the character associated with each sleep stage. I can understand. Further, by continuously changing the display image, it is possible to interlock and change the time information and the character shape. This makes it possible to intuitively grasp temporal changes in the sleep stage.

  Next, the operation of the sleep state display device configured as described above will be described using the flowchart shown in FIG. In the following description, it is assumed that the character shape 400a, the time information 400b, and the reference image of the time series graph 400c of the sleep stage are stored in the storage unit 10 of the sleep state display device 1 in advance. Is to generate the display image shown in FIG.

  The sleep state display device 1 inputs sleep information (ST110), estimates a plurality of sleep stages in association with the sleep time based on the sleep information, and estimates the sleep time length of each sleep stage estimated; And calculate a plurality of sleep variables including the total sleep time (ST130). In addition, since operation | movement of step ST110-ST130 is the same as that of 1st Embodiment, description is abbreviate | omitted.

  The display time information selection unit 70 selects the time information indicated by the display image (ST135), and transmits the selected time information to the display image generation unit 50.

  The display image generation unit 50 receives each of the calculated sleep variables and the selected time information, and generates a display image of the selected time information from the reference image based on each of the sleep variables (ST 140).

  Here, the reference image represents a plurality of fourth element images representing character shapes respectively associated with each sleep stage, a sixth element image representing time information indicated by the display image, and a time series graph of each sleep stage The seventh element image is included.

  The display image generation unit 50 reads the reference image from the storage unit 10, and generates a display image from the reference image. Specifically, the display image generation unit 50 selects a fourth element image corresponding to each sleep stage, generates a sixth element image representing time information corresponding to the selected time information, and A seventh element image representing a series graph is generated. The display image generation unit 50 finally generates a display image from the reference image based on the selected fourth element image and the generated sixth element image and seventh element image.

  The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image, and displays the display image as a sleep state (ST150).

  As described above in detail, in the fifth embodiment, the display time information selection unit 70 selects the time information indicated by the display image. Storage unit 10 includes a plurality of fourth element images representing character shapes respectively associated with the respective sleep stages, a sixth element image representing time information, and a seventh element image representing a time series graph of each sleep stage. . The display image generation unit 50 selects the fourth element image according to the sleep stage corresponding to the selected time information, generates a sixth element image corresponding to the selected time information, and generates a seventh element image Finally, a display image is generated from the reference image. For this reason, when a user grasps a sleep state, it can replace with a sleep variable and can use a character shape showing each sleep stage. In addition, the sleep state can be intuitively grasped by selecting the time represented by the display image and displaying the selected time information and the character shape corresponding to the time information. Furthermore, the transition of the sleep stage in the entire sleep time can be grasped by simultaneously displaying the time series graph of the sleep stage.

  Therefore, according to the fifth embodiment, it is possible to display an intuitively understandable sleep state while reducing the burden on the user.

Sixth Embodiment
The sixth embodiment is a modification of the first embodiment, and instead of the container shape, the character shape respectively associated with each body movement state, the time information shown by the display image, and each body movement state A display image can be generated based on a reference image representing a time series graph. FIG. 14 is a schematic view showing a functional configuration of the sleep state display device 1 according to the sixth embodiment. In the following, the same parts as in FIG. 1 will be assigned the same reference numerals, and the detailed description thereof will be omitted, and different parts will be mainly described.

  The sleep state display device 1 further includes a display time information selection unit 70 and a body movement state estimation unit 80 in addition to the configuration shown in FIG. 1.

  The storage unit 10 represents a plurality of eighth element images representing character shapes respectively associated with the physical movement states, a sixth element image representing time information indicated by the display image, and a time series graph of the physical movement states. The reference image including the ninth element image is stored.

  The sleep information input unit 20 receives an input of sleep information including biological information and body movement information acquired during sleep, and transmits the sleep information having received the input to the sleep stage estimation unit 30 and the body movement state estimation unit 80 Do. The sleep information input unit 20 may store sleep information in the storage unit 10.

  The physical movement state is classified into four levels: face-up, right-hand, left-hand, and face-down. Therefore, the eighth element image includes a character-shaped image showing at least four different types of body movement.

  The display time information selection unit 70 selects time information indicated by the display image when the display image generation unit 50 generates a display image, as in the fifth embodiment. The display time information selection unit 70 transmits the selected time information to the display image generation unit 50.

  The display time information selection unit 70 may select predetermined time information, or may select time information based on time information input by the user from a time information input unit (not shown). The display time information selection unit 70 may continuously change the selected time information in a predetermined order, and continuously transmit the continuously changed time information to the display image generation unit 50. You may

  The body movement state estimation unit 80 receives sleep information from the sleep information input unit 20, and estimates a plurality of body movement states in association with the sleep time based on the sleep information. The body movement state estimation unit 80 may generate body movement state estimation information in which the estimated transitions of each body movement state are associated with time series, and the body movement state estimation information may be stored in the storage unit 10. The body movement state estimation unit 80 transmits the generated body movement state estimation information to the display image generation unit 50.

  The display image generation unit 50 receives the calculated sleep variable from the sleep variable calculation unit 40. In addition, the display image generation unit 50 receives the generated body movement state estimation information from the body movement state estimation unit 80, and receives the selected time information from the display time information selection unit 70. The display image generation unit 50 generates a display image from the reference image on the basis of the generated body movement state estimation information and the selected time information. The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  Specifically, the display image generation unit 50 reads a reference image including the eighth element image, the sixth element image, and the ninth element image from the storage unit 10, and generates a display image illustrated in FIG. The display image generation unit 50 selects an eighth element image representing a character shape 500a corresponding to the body movement state corresponding to the selected time information. The display image generation unit 50 generates a sixth element image representing time information 500b corresponding to the selected time information and a ninth element image representing the time series graph 500c of each motion state. The display image generation unit 50 finally generates a display image from the reference image based on the selected eighth element image and the generated sixth element image and ninth element image.

  That is, the eighth element image illustrated in FIG. 15 is an image representing a character shape 500a associated with a body movement state facing left. The sixth element image illustrated in FIG. 15 is an image representing time information 500 b when “3:30” is selected as time information. The ninth element image illustrated in FIG. 15 is an image representing a time-series graph 500 c representing transition of a body movement state from sleeping to getting up.

  As in the fourth embodiment, the eighth element image uses an image representing a character shape to qualitatively convey the meaning of each motion state to the user in an easily understandable manner. Further, as the sixth element image, similarly to the fifth embodiment, an image quantitatively representing the selected time information is used. The sixth element image may represent time as a numerical value, may represent the selected time in the form of a clock or the like, and indicates the selected time by indicating a time axis in the ninth element image. It may be configured as follows. Further, the ninth element image may be configured in any format capable of displaying the transition of the body movement state in time series, not limited to the line graph.

  As in the fifth embodiment, when the display image generation unit 50 continuously receives time information from the display time information selection unit 70, the eighth element is continuously configured according to the continuously received time information. An image may be selected to generate a sixth element image. The display image generation unit 50 may continuously transmit the display image generated continuously to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image from the display image generation unit 50, and displays the display image on a screen (not shown). When the display state is continuously received from the display image generation unit 50, the sleep state display unit 60 may continuously display the received display image. In this case, the sleep state display unit 60 may display the display image continuously to reproduce the time change of the body movement state like a moving image and display the body movement state to the user.

  According to the display image generated in the present embodiment, the user can intuitively recognize the body motion state in the selected time information by qualitatively recognizing the state of the character associated with each body motion state by the user. Can be grasped. Further, by continuously changing the display image, it is possible to interlock and change the time information and the character shape. This makes it possible to intuitively grasp temporal changes in the motion state.

  Next, the operation of the sleep state display device configured as described above will be described using the flowchart shown in FIG. In the following description, it is assumed that the character shape 500a, the time information 500b, and the reference image of the time series graph 500c of the body movement state are stored in advance in the storage unit 10 of the sleep state display device 1; 50 generates the display image shown in FIG.

  The sleep state display device 1 inputs sleep information (ST110), and estimates a plurality of sleep stages in association with sleep time based on the sleep information (ST120). In addition, since operation | movement of step ST110-ST120 is the same as that of 1st Embodiment, description is abbreviate | omitted.

  The body movement state estimation unit 80 estimates a plurality of body movement states in association with the sleep time based on the sleep information (ST125), and generates body movement information estimation information based on the estimated body movement information. The body movement state estimation unit 80 transmits the generated body movement state estimation information to the display image generation unit 50.

  The sleep variable calculation unit 40 receives the generated sleep stage estimation information, and calculates a plurality of sleep variables including the length of the sleep time of each sleep stage and the entire sleep time (ST130). The sleep variable calculation unit 40 transmits each calculated sleep variable to the display image generation unit 50.

  Steps ST120 and ST130 may be omitted in this embodiment.

  The display time information selection unit 70 selects the time information indicated by the display image (ST135), and transmits the selected time information to the display image generation unit 50.

  The display image generation unit 50 receives each calculated sleep variable, the generated motion estimation information, and the selected time information, and based on the motion estimation information, the time information selected from the reference image To generate a display image at step ST140.

  Here, the reference image includes a plurality of eighth element images representing character shapes respectively associated with each motion state, a sixth element image representing time information indicated by the display image, and a time series graph of each motion state And a ninth element image representing

  The display image generation unit 50 reads the reference image from the storage unit 10, and generates a display image from the reference image. Specifically, the display image generation unit 50 selects an eighth element image corresponding to each physical movement state, and generates a sixth element image representing time information corresponding to the selected time information, and the physical movement state Generating a ninth element image representing a time series graph of The display image generation unit 50 finally generates a display image from the reference image based on the selected eighth element image and the generated sixth element image and ninth element image.

  The display image generation unit 50 transmits the generated display image to the sleep state display unit 60.

  The sleep state display unit 60 receives the generated display image, and displays the display image as a sleep state (ST150).

  As described in detail above, in the sixth embodiment, the body movement state estimation unit 80 estimates a plurality of body movement states in association with the sleep time based on the input sleep information. The display time information selection unit 70 selects time information indicated by the display image. The storage unit 10 includes a plurality of eighth element images representing character shapes respectively associated with each motion state, a sixth element image representing time information, and a ninth element image representing a time series graph of each motion state including. The display image generation unit 50 selects the eighth element image according to the physical movement state corresponding to the selected time information, generates a sixth element image corresponding to the selected time information, and generates a ninth element image. It generates and finally generates a display image from the reference image. Therefore, when the user grasps the motion state, it is possible to use a character shape representing each motion state instead of the sleep variable. In addition, the sleep state can be intuitively grasped by selecting the time represented by the display image and displaying the selected time information and the character shape corresponding to the time information. Furthermore, by displaying the time series graph of the motion state further simultaneously, it is possible to grasp the transition of the motion state in the entire sleep time.

  Therefore, according to the sixth embodiment, in addition to the effects of the first embodiment, it is possible to intuitively grasp the change of the body movement state in the sleeping time without increasing the burden on the user.

  In addition, said each embodiment is not limited to said each embodiment as it is, At an execution phase, a component can be changed and actualized in the range which does not deviate from the summary. For example, the display image according to each of the above embodiments is not limited to the display of sleep information for one day, and sleep information for a plurality of past days may be displayed in a list format. Specifically, as shown in FIG. 17, the display images according to the first to third embodiments may display a display image indicating the sleep state for each day in a list format. This makes it possible to compare daily sleep states at a glance, and allows the user to intuitively understand which day sleep state was good or bad.

  Further, the display images according to the sixth and seventh embodiments may be displayed simultaneously. Thereby, it is possible to simultaneously grasp the sleep stage and body movement state in the selected time information.

  In addition, various inventions can be formed by appropriate combinations of a plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components in different embodiments may be combined as appropriate.

  DESCRIPTION OF SYMBOLS 1 ... Sleep state display apparatus, 10 ... Storage part, 20 ... Sleep information input part, 30 ... Sleep stage estimation part, 40 ... Sleep variable calculation part, 50 ... Display image generation part, 60 ... Sleep state display part, 70 ... Display Time information selection unit 80 body movement state estimation unit 100a, 100b, 200a, 200b container shape portion 101a, 101b rod portion 201a, 201b stem portion 202a, 202b flower portion 300a 400a, 500a ... character shape, 300b ... sleep time information, 400b, 500b ... time information, 400c, 500c ... time series graph.

Claims (9)

A sleep state display device that displays a sleep state based on a reference image including a plurality of element images stored in advance in a memory, the sleep state display device comprising:
Sleep information input means for inputting sleep information including biological information and body movement information;
Sleep stage estimation means for estimating a plurality of sleep stages in association with sleep time based on the input sleep information;
Sleep variable calculating means for calculating a plurality of sleep variables including the length of the sleep time of each of the estimated sleep stages and the length of the entire sleep time;
Display image generation means for generating a display image from the reference image by changing each element image in association with each calculated sleep variable and each sleep stage;
Sleep state display means for displaying the generated display image as the sleep state;
Equipped with
The reference image includes a container shape configured by connecting a plurality of first element images defined by at least a height and a width, which correspond to the respective sleep stages, in a height direction,
The display image generation means changes the height of each of the first element images according to the ratio of the reference value of the length of the entire sleep time and the length of the entire sleep time, and The width of the image is changed according to the ratio of the sleep time length of the sleep phase corresponding to each first element image and the reference value of the sleep time length of the sleep phase, and finally the display from the reference image Generate an image
Sleep state display device comprising a call. The reference image includes a rod-shaped second element image defined by at least a length,
A portion of the second elemental image is configured to be inserted into the container shape,
The sleep variable calculation means calculates the sleep variable further including sleep latency.
The display image generation means changes the length of the second element image in accordance with a ratio of a reference value at the sleeping delay time and the sleeping delay time, and finally generates the display image from the reference image. sleep state display device according to claim 1, wherein the. The second element image includes a plant shape formed by adding a third element image capable of selecting a plurality of colors and / or shapes.
The sleep variable calculating means calculates the sleep variable further including a sleep quality value,
The display image generation means selects the color and / or the shape of the third element image according to the calculated sleep quality value, and finally generates the display image from the reference image. The sleep state display device according to claim 2 . The sleep variable calculation means further calculates at least one of relaxation degree, deep sleep rate, awakening frequency, and sleep efficiency value based on the sleep information, and at least one of the calculated values. The sleep state display device according to claim 3 , wherein the value of the sleep quality is calculated based on. The reference image includes a plurality of fourth element images representing character shapes respectively associated with the sleep stages, and a fifth element image representing sleep time information of the sleep stages.
The display image generation means selects the fourth element image corresponding to each sleep stage, generates the fifth element image representing sleep time information calculated for the sleep stage, and finally the reference image The sleep state display device according to claim 1, wherein the display image is generated from It further comprises display time information selection means for selecting time information indicated by the display image;
The reference image includes a plurality of fourth element images representing character shapes respectively associated with the sleep stages, a sixth element image representing the time information, and a seventh element representing a time series graph of the sleep stages Including images,
The display image generation means selects the fourth element image according to the sleep stage corresponding to the selected time information, and generates the sixth element image corresponding to the selected time information, The sleep state display device according to claim 1, wherein a seven element image is generated, and the display image is finally generated from the reference image. Body movement state estimation means for estimating a plurality of body movement states in association with sleep time based on the input sleep information;
Display time information selection means for selecting time information indicated by the display image;
And further
The reference image includes a plurality of eighth element images representing character shapes respectively associated with the body movement states, a sixth element image representing the time information, and a time series graph of the body movement states Including nine element images,
The display image generation unit selects the eighth element image in accordance with the physical movement state corresponding to the selected time information, and generates the sixth element image corresponding to the selected time information. The sleep state display device according to claim 1, wherein a ninth element image is generated, and the display image is finally generated from the reference image. A sleep state display method in a sleep state display device, which displays a sleep state based on a reference image including a plurality of element images stored in advance in a memory,
A sleep information input step of inputting sleep information including biological information and body movement information;
A sleep stage estimation step of estimating a plurality of sleep stages in association with sleep times based on the input sleep information;
A sleep variable calculating step of calculating a plurality of sleep variables including the length of the sleep time of each of the estimated sleep stages and the length of the entire sleep time;
A display image generation step of generating a display image from the reference image by changing each element image in association with each calculated sleep variable and each sleep stage;
A sleep state display step of displaying the generated display image as the sleep state;
Equipped with
The reference image includes a container shape configured by connecting a plurality of first element images defined by at least a height and a width, which correspond to the respective sleep stages, in a height direction,
The display image generation step changes the height of each of the first element images in accordance with a ratio of a reference value of the total sleep time length and the total sleep time length, The width of the image is changed according to the ratio of the sleep time length of the sleep phase corresponding to each first element image and the reference value of the sleep time length of the sleep phase, and finally the display from the reference image A sleep state display method characterized in that an image is generated . A sleep state display program used for a sleep state display device that displays a sleep state based on a reference image including a plurality of element images stored in advance in a memory,
The sleep state display device,
Sleep information input means for inputting sleep information including biological information and body movement information,
A sleep stage estimation unit that estimates a plurality of sleep stages in association with a sleep time based on the input sleep information;
Sleep variable calculating means for calculating a plurality of sleep variables including the length of the sleep time of each of the estimated sleep stages and the length of the entire sleep time;
Display image generation means for generating a display image from the reference image by changing each element image in association with each calculated sleep variable and each sleep stage;
Sleep state display means for displaying the generated display image as the sleep state;
To function as,
The reference image includes a container shape configured by connecting a plurality of first element images defined by at least a height and a width, which correspond to the respective sleep stages, in a height direction,
The display image generation means changes the height of each of the first element images according to the ratio of the reference value of the length of the entire sleep time and the length of the entire sleep time, and The width of the image is changed according to the ratio of the sleep time length of the sleep phase corresponding to each first element image and the reference value of the sleep time length of the sleep phase, and finally the display from the reference image Program for generating images .