JP2016067537A - Respiration state presentation method, apparatus, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of effectively presenting a change in the respiration state to a user.SOLUTION: A respiration state presentation method includes: importing respiration information of a user from a sensor 2 to detect a respiratory cycle from the respiration information, and determining whether or not the detected respiratory cycle is within a target value stored in a target value DB 231; and when the detected respiratory cycle is within the target value, adding a constant value s to a score, reading avatar growth information corresponding to the score after the addition from an avatar growth DB 2321 to display it on a display part 24; and, when the detected respiratory cycle is outside the range of the target value, subtracting the constant value s from the score, reading avatar decline information corresponding to the score after the subtraction from an avatar decline DB 2322 to display it on the display part 24.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a breathing state presentation method, apparatus, and program for evaluating a user's breathing method and presenting the result to the user.

  Breathing is controlled by the autonomic nervous system and is normally controlled unconsciously. However, conscious deep and slow abdominal breathing provides a relaxation effect, which is a cardiovascular index such as heart rate and blood pressure. It is known to bring about changes. Various studies have been conducted to guide the user to a relaxed state or a refreshed state by guiding the user to adjust their breathing. For example, in the research described in Non-Patent Document 1, the user's breath is measured, and the measured breathing pattern is presented to the user by visual, auditory, or tactile sensation so that the user feels breathing. It is a thing.

Yasushi Aoyama, et al., “Development and Evaluation of Respiratory Healing System“ The Mind Wave ”, Biofeedback Research, 2004, 31, 27-34

  However, the technique described in Non-Patent Document 1 merely presents the user's current breathing pattern to the user, and changes in breathing conditions, that is, the breathing method is improved or worsened. I can't even tell you if there is.

  The present invention has been made paying attention to the above circumstances, and an object of the present invention is to provide a breathing status presentation method, apparatus, and program capable of effectively presenting a change in breathing status to a user. is there.

  In order to achieve the above object, according to a first aspect of the present invention, respiratory information representing a user's breathing motion is acquired from a biological sensor worn by the user, and the user's breathing is based on the acquired respiratory information. A score value representing whether the motion is within the range of the target value of the breathing motion stored in the first memory in advance or out of the range, and representing the breathing status of the user based on the result of the breathing motion determination Update. And a second memory storing avatar growth information expressing the improvement tendency of the breathing motion by the avatar's stepwise growth, and avatar decline information expressing the deterioration tendency of the breathing motion by the stepwise decline of the avatar. Then, the avatar growth information or avatar decline information corresponding to the determination result of the breathing motion and the updated score value is read out and presented to the user.

  In a second aspect of the present invention, when the score value is updated, the score value is increased every time it is determined that the user's breathing motion is within the range of the target value. Each time it is determined that the value is outside the range of the target value, the score value is decreased. When it is determined that the user's breathing motion is within the target value range, the avatar growth information corresponding to the updated score value at this time is read out and presented to the user, and the user's breathing When it is determined that the operation is outside the range of the target value, the avatar decline information corresponding to the updated score value at this time is read out and presented to the user.

  According to a third aspect of the present invention, the heart rate information of the user is acquired from the biological sensor, an index value representing the autonomic nerve activity of the user is estimated based on the acquired heart rate information, and the estimated Based on the index value, the respiratory cycle that leads the parasympathetic nerve activity to the dominant state is determined, and the operation of registering the determined respiratory cycle as the target value of the respiratory motion in the first memory is further performed. Is.

  According to the first aspect of the present invention, the avatar growth information that represents the improvement tendency of the user's breathing motion by the avatar's stepwise growth, and the avatar decline that represents the deterioration tendency of the breathing motion by the avatar's stepwise decline. Information is stored in advance. Then, the score value representing the breathing state of the user is updated according to the determination result of the breathing motion of the user, and avatar growth information or avatar decline information corresponding to the updated score value is read and presented to the user. For this reason, it becomes possible for the user to recognize whether or not his / her breathing motion is a preferable motion by a stepwise change of the avatar's growth or decline, and thereby consciously arranges the breathing to a favorable state for the user. Motivation can be sustained.

  According to the second aspect of the present invention, each time it is determined that the user's breathing motion is within the range of the target value, the score value is increased, and the avatar growth information corresponding to the score is sequentially read out. On the other hand, every time it is determined that the breathing motion is outside the range of the target value, the score value is decreased, and avatar decline information corresponding to the score is sequentially read and displayed. For this reason, when the user continues a preferable breathing motion, this state is displayed as the avatar gradually grows. On the other hand, if the user continues an undesired breathing motion, this state is displayed as the avatar gradually declines. Therefore, the user can clearly recognize the change in his / her breathing movement with continuity by the change in the avatar's growth or decline.

  According to the third embodiment of the present invention, the autonomic nerve activity of the user is estimated based on the heart rate information of the user, and the respiratory cycle that leads the parasympathetic nerve activity to the dominant state is determined from the estimation result. The determined respiratory cycle is registered in the first memory as a target value. For this reason, it becomes possible to set the target value of the breathing motion to an ideal value for each user. Further, if this respiration cycle update process is executed periodically, it becomes possible to always set a more appropriate target value according to the situation of the user.

  That is, according to the present invention, it is possible to provide a respiratory condition presentation method, apparatus, and program that can effectively present a change in respiratory condition to a user.

The block diagram which shows the function structure of the portable terminal which is one Embodiment of the respiratory condition presentation apparatus which concerns on this invention. The figure which shows an example of the target value database provided in the portable terminal shown in FIG. The figure which shows an example of the avatar growth database provided in the portable terminal shown in FIG. The figure which shows an example of the avatar decline database provided in the portable terminal shown in FIG. The flowchart which shows the process sequence and process content by the portable terminal shown in FIG. The flowchart which shows the procedure and process content of target value update process among the process procedures shown in FIG. The figure which shows an example of the avatar growth information memorize | stored in an avatar growth database. The figure which shows an example of the avatar decline information memorize | stored in an avatar decline database.

Embodiments according to the present invention will be described below with reference to the drawings.
[One Embodiment]
(Constitution)
FIG. 1 is a block diagram showing a functional configuration of a portable terminal which is an embodiment of a respiratory condition presentation device according to the present invention.
The mobile terminal in the present embodiment includes a mobile terminal such as a smartphone, a mobile phone, a tablet terminal, and a wearable terminal, for example, and uses a control unit 21, a communication interface unit 22, a storage unit 23, and an LCD or an organic EL. A display unit 24 is provided.

  The communication interface 22 has a function of receiving sensor information transmitted from the sensor 2 in addition to a function of performing mobile communication with a Web server or another terminal via a mobile communication network (not shown) under the control of the control unit. Is provided. As a communication means between the sensor 2 and the portable terminal 1, a means adopting a low power data communication standard such as Bluetooth (registered trademark) is used.

  The sensor 2 is composed of a wearable sensor or a sensor incorporated in the environment, and measures respiratory information and heart rate information representing a user's breathing motion, and transmits the measurement results as the sensor information. The respiratory information is obtained, for example, by detecting expansion and contraction of the abdomen using an acceleration sensor or a pressure sensor. Heartbeat information is detected by using, for example, a pressure sensor or a fiber sensor. The fiber sensor can detect a biological signal by coating a conductive polymer in a gap between nanofiber fibers to form a continuous layer of resin (for example, http://www.ntt.co. jp / news2014 / 1401 / 140130a.html).

  The storage unit 23 uses an SSD (Solid State Drive) as a storage medium. As a database necessary for realizing the present embodiment, a target value database (target value DB) 231 and an avatar information database (avatar information) DB) 232.

  The target value DB 231 stores a target value related to an index representing an autonomic nervous activity state of a respiratory cycle and a heart rate set for each user. Here, as an index representing the autonomic nervous activity state of the heartbeat, for example, when the respiratory component is HF and the Mayer Wave component is LF, an index represented by HF / (LF + HF) is used. FIG. 2 shows an example of the target value stored in the target value DB 231.

  The avatar information database 232 is provided with an avatar growth DB 2321 and an avatar decline DB 2322. The avatar growth DB 2321 stores avatar growth information that represents, as an image or a moving image, that a creature as an avatar grows in association with a plurality of score values. The avatar decline DB 2322 stores avatar decline information that represents, as an image or a moving image, that a creature as an avatar declines in association with a plurality of score values. 3 and 4 show examples of the avatar growth information and the avatar decline information, respectively.

  The control unit 21 includes a central processing unit (CPU), and as a control function necessary for realizing the present embodiment, a sensor information acquisition unit 211, a feature amount calculation unit 212, a state The determination unit 213, the score determination unit 214, the avatar presentation control unit 215, and the target value update unit 216 are included.

  The sensor information acquisition unit 211 performs processing for capturing sensor information including respiration information and heart rate information transmitted from the sensor 2 via the communication interface unit 22. The acquired sensor information is stored in a buffer memory (not shown) with a time stamp added at regular intervals.

  The feature amount calculation unit 212 performs waveform analysis on the respiratory information and heart rate information stored in the buffer memory for each predetermined analysis interval, thereby calculating the respiratory cycle, heart rate, and heart rate interval (RR interval), respectively. Perform the process.

  The state determination unit 213 compares the calculated respiratory cycle with the target value of the respiratory cycle stored in the target value DB 231 and determines whether the calculated respiratory cycle is within the target value range or out of the target value range. The process which determines is performed.

  Each time the score determination unit 214 determines that the calculated respiratory cycle is within the range of the target value based on the determination result of the state determination unit 213, the score determination unit 214 sets a value s ( s is an arbitrary real number). On the other hand, every time it is determined that the calculated respiratory cycle is outside the range of the target value, a process of subtracting the set value s (s is an arbitrary real number) from the current score is performed.

  Based on the determination result of the state determination unit 213 and the score after addition or subtraction, the avatar presentation control unit 215 determines from the avatar growth DB 2321 if the calculated respiratory cycle is within the target value range. Read avatar growth information corresponding to the score after addition. If the calculated respiratory cycle is outside the range of the target value, avatar decline information corresponding to the score after subtraction is read from the avatar decline DB 2322. Then, a process of displaying the read avatar growth information or avatar decline information on the display unit 24 is performed.

  The target value update unit 216 calculates HF / (LF + HF), which is an autonomic nerve activity index, from the heart rate and the RR interval calculated by the feature amount calculation unit 212, and the calculated activity index HF / ( LF + HF) is compared with the target value of the activity index stored in the target value DB 231. When the calculated index HF / (LF + HF) is larger than the target value of the activity index, the respiratory interval and the target value of the activity index stored in the target value DB 231 are used as the calculated latest respiratory rate. Update the interval and activity index values.

(Operation)
Next, a breathing state presentation operation by the portable terminal 1 configured as described above will be described. FIG. 5 is a flowchart showing the control procedure and control contents of the control unit 21.
Note that avatar growth DB 2321 and avatar decline DB 2322 will be described assuming that avatar growth information and avatar decline information are stored in advance in association with score values. Moreover, the initial value of the target value of the respiratory cycle is set in advance in the target value DB 231. As the initial value, for example, a preferable respiratory cycle is selected according to the sex and age group of the user.

  The sensor 2 measures respiration information and heart rate information representing the user's respiration, and transmits the measured information as sensor information. On the other hand, in the portable terminal 1, the control unit 21 receives the sensor information transmitted from the sensor 2 through the communication interface unit 22 under the control of the sensor information acquisition unit 211 in step S10, and stores it in a buffer memory (not shown). save.

  When the sensor information is received, the control unit 21 calculates the feature value as follows under the control of the feature value calculation unit 212. That is, an arbitrarily defined time length is set as one analysis section, and a respiration cycle is first detected from the waveform of the respiration information in step S11 for each analysis section. In step S12, a heart rate and a heartbeat interval (RR interval) are detected from the waveform of the heartbeat information.

  Next, the control unit 21 reads the target value of the respiratory interval from the target value DB 231 in step S13 under the control of the state determination unit 213, and compares the respiratory cycle detected in step S11 with the target value in step S14. . Then, it is determined whether the detected respiratory cycle is within the target value range or out of the target value range. For example, if the detected respiratory cycle is “0.11 Hz”, the target value DB 231 stores “0.1 ± 0.03 Hz” as the target value of the respiratory cycle. It is determined that the respiration cycle “0.11 Hz” is within the target value range.

  When the determination result is obtained, the control unit 21 subsequently updates the score by the score determination unit 214, and then performs avatar presentation processing as described below under the control of the avatar presentation control unit 215.

  That is, when it is determined that the calculated respiratory cycle is within the target value range, a preset value s is added to the current score in step S15. Then, the avatar growth DB 2321 is searched in step S16, the avatar growth information corresponding to the score after the addition is read, and the read avatar growth information is displayed on the display unit 24 in step S19.

  For example, if it is determined that the respiratory cycle is now within the range of the target value and the score is the initial value + s, the avatar growth DB 2321 is selected. For example, if the initial value is 0 and s = 1, the score is 1. “No. 11” is read from the avatar growth DB 2321 as the avatar growth information. Then, according to the read avatar growth information, for example, an avatar representing a young shoot of the plant is displayed on the display unit 24 as shown in FIG.

  In the subsequent analysis sections, if the respiratory cycle is within the target value range, the constant value s is sequentially added to the score. Then, the avatar growth information corresponding to the score after the addition is sequentially read out from the avatar growth DB 2321. For example, as shown in FIGS. 7B and 7C, an avatar expressing a state in which the plant gradually grows. Is displayed on the display unit 24.

  That is, when the user's breathing motion is continuously performed at a preferable cycle, the display unit 24 displays that the avatar gradually grows. By confirming the growth of this avatar, the user can maintain motivation for achieving the desired breathing method goal.

  On the other hand, if it is determined in step S14 that the calculated respiratory cycle is outside the target value range, the constant value s is subtracted from the current score in step S17. Then, the avatar decline DB 2322 is searched in step S18, the avatar decline information corresponding to the score after the subtraction is read, and the read avatar decline information is displayed on the display unit 24 in step S19.

  For example, if it is determined that the respiratory cycle is outside the range of the target value and the score is “10-s”, the avatar decline DB 2322 is selected, and the score “10-s” is selected from the avatar decline DB 2322. Avatar decline information is read. Then, according to the read avatar attenuation information, for example, an avatar representing a plant whose growth has stopped is displayed on the display unit 24 as shown in FIG.

  In the subsequent analysis sections, if the respiratory cycle is outside the range of the target value, the score is sequentially subtracted by a certain value s. Then, avatar growth information corresponding to the score after this subtraction is sequentially read out from the avatar decline DB 2322. For example, as shown in FIGS. 8 (b) and 8 (c), an avatar expressing that the plant is gradually withering is obtained. It is displayed on the display unit 24.

  In other words, if the user's breathing motion is out of the preferred breathing cycle, the display unit 24 displays that the avatar gradually declines. As a result, it is possible to induce sympathy for the user's avatar and to have a willingness to execute a preferable breathing method.

  When a series of avatar presentation control in the one analysis section is completed, the control unit 21 proceeds to step S20, where the target value update processing is executed as follows under the control of the target value update unit 216. FIG. 6 is a flowchart showing the processing procedure and processing contents.

  That is, the control unit 21 first determines whether or not the current analysis section is the first time in step S21. And if it is the first time, it will be determined by step S22 whether the respiratory cycle detected in this analysis area is in the range of the target value of the respiratory cycle memorize | stored in target value DB231. If the result of this determination is that the detected respiratory cycle is within the range of the target value, in step S23, the autonomic nerve is detected based on the heart rate and RR interval detected in step 12 in the current analysis section. The activity index HF / (LF + HF) is calculated, and the calculated activity index HF / (LF + HF) is registered in the target value DB 231. If it is determined in step S22 that the detected respiratory cycle is outside the range of the target value, the activity index HF / (LF + HF) is not registered.

  On the other hand, after the activity index HF / (LF + HF) is registered in the target value DB 231, the process proceeds to step S24 for each analysis section. In step S24, the activity index HF / (LF + HF) detected in the analysis section is compared with the target value of the activity index HF / (LF + HF) registered in the target value DB 231. If the detected activity index HF / (LF + HF) is larger than the target value as a result of this comparison, the activity index registered in the target value DB 231 in step S25 is changed to the newly detected activity index HF / (LF + HF). Update. At the same time, the target value of the respiratory cycle stored in the target value DB 231 is updated to a new respiratory cycle detected in the current analysis section. If the detected activity index HF / (LF + HF) is equal to or smaller than the target value as a result of the comparison in step S24, the activity index HF / (LF + HF) and the target value of the respiratory cycle are not updated.

(effect)
As described in detail above, in the present embodiment, the user's respiratory information is acquired from the sensor 2 and the respiratory cycle is detected from the respiratory information. If the detected respiratory cycle is within the range of the target value stored in the target value DB 231. Determine whether or not. If the detected respiratory cycle is within the target value range, the score is incremented by a predetermined value s, and avatar growth information corresponding to the score after the addition is read from the avatar growth DB 2321 and displayed on the display unit 24. . On the other hand, if the detected respiratory cycle is outside the range of the target value, a predetermined value s is subtracted from the score, and avatar decline information corresponding to the score after the subtraction is read from the avatar decline DB 2322 and displayed on the display unit 24. Like to do.

  Therefore, it becomes possible for the user to recognize whether or not his / her breathing motion is a preferable motion by the step change of the avatar's growth or decline, thereby motivating the user to consciously arrange the breathing in a favorable state. Can be sustained.

  Further, under the control of the target value update unit 216, the autonomic nervous activity index HF / (LF + HF) is calculated from the heart rate and the RR sensation, and the calculated activity index is stored in the target value DB 231. If the target value is larger than the target value, the target value is updated to the newly calculated activity index, and the target value of the respiratory cycle stored in the target value DB 231 is updated to the newly detected respiratory cycle. Like to do.

  Therefore, the target value of the respiratory cycle can be set to an ideal value for each user. Further, since the renewal process of the breathing cycle is performed for each analysis section, it is possible to always set a more appropriate target value according to the situation of the user.

[Other Embodiments]
In the embodiment, the sensor information is taken in from the sensor 2 provided separately from the mobile terminal 1 to detect the respiratory cycle and the like, but the sensor may be accommodated in the mobile terminal. In the above-described embodiment, the respiratory information is obtained from the expansion and contraction of the abdomen or chest associated with the respiratory action, but the respiratory information may be obtained from the sound of the lungs accompanying the respiratory action.

  In addition, the avatar is not limited to plants, but may use animals or virtual creatures, or may provide incentives such as points or prizes. In addition, the speed of change of the avatar and the configuration of the display image or video may be set in any manner.

  In addition, the type and configuration of the breathing status presentation device, the processing procedure and processing contents of the breathing status presentation control, and the like can be variously modified without departing from the scope of the present invention.

  In short, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Portable terminal, 2 ... Sensor, 21 ... Control unit, 22 ... Communication interface unit, 23 ... Memory | storage unit, 24 ... Display part, 211 ... Sensor information acquisition part, 212 ... Feature-value calculation part, 213 ... State determination part, 214 ... Score determination unit, 215 ... Avatar presentation control unit, 216 ... Target value update unit, 231 ... Target value database (target value DB), 232 ... Avatar information database, 2321 ... Avatar growth database (avatar growth DB), 2322 ... Avatar decline database (Avatar decline DB).

Claims (5)

A breathing condition presentation method executed by a breathing condition presentation device including a computer connected to a biosensor worn by a user,
Acquiring respiratory information representing the user's respiratory motion from the biological sensor;
Determining whether the breathing motion of the user is within or outside the range of the target value of the breathing motion stored in the first memory in advance based on the acquired breathing information;
Updating a score value representing the breathing status of the user based on the determination result of the breathing movement;
From the second memory storing the avatar growth information expressing the improvement tendency of the breathing movement by the stepwise growth of the avatar, and the avatar decline information expressing the deterioration tendency of the breathing movement by the stepwise decline of the avatar, A breathing state presentation method comprising: reading out the avatar growth information or avatar decline information corresponding to the determination result of the breathing motion and the updated score value and presenting the information to the user. The process of updating the score value increases the score value every time it is determined that the user's breathing motion is within the target value range, and the user's breathing motion is outside the target value range. Each time it is judged, the score value is decreased,
In the presenting step, when it is determined that the user's breathing motion is within the range of the target value, the avatar growth information corresponding to the updated score value at this time is read and presented to the user, The avatar decline information corresponding to the updated score value at this time is read out and presented to the user when it is determined that the user's breathing motion is outside the range of the target value. 1. The breathing state presentation method according to 1. Acquiring the user's heart rate information from the biological sensor;
Estimating an index value representing the user's autonomic nerve activity based on the acquired heartbeat information, and determining a respiratory cycle that leads parasympathetic nerve activity to a dominant state based on the estimated index value; The breathing condition presentation method according to claim 1, further comprising: registering the breathing cycle thus performed in the first memory as a target value of the breathing action. A respiratory condition presentation device connected to a biosensor worn by a user,
A first memory for storing a target value of the user's breathing movement;
A second memory storing avatar growth information expressing the improvement tendency of the breathing movement by avatar stepwise growth, and avatar decline information expressing the deterioration tendency of the breathing movement by the stepwise decline of the avatar;
Means for obtaining respiratory information representing the breathing motion of the user from the biological sensor;
Means for determining, based on the acquired breathing information, whether the breathing motion of the user is within or outside the range of the target value of the breathing motion previously stored in the first memory;
Means for updating a score value representing the breathing status of the user based on the determination result of the breathing movement;
A breathing condition comprising: a means for reading out the avatar growth information or avatar decline information corresponding to the determination result of the breathing movement and the updated score value from the second memory and presenting the information to the user Presentation device.   The program which makes the computer with which the said respiratory condition presentation apparatus performs the operation | movement of each process which the respiratory condition presentation method in any one of Claim 1 thru | or 3 comprises.

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