Stimulation specific program, stimulation specific device, and stimulation specific system

Abstract

To specify stimulation imparted to an object person.SOLUTION: A stimulation specification program causes a computer (200 and 400) to execute pre-stimulation index acquisition processing for acquiring a pre-stimulation index on an object person; post-stimulation index acquisition processing for acquiring a post-stimulation index on the object person; correlation information acquisition processing for acquiring correlation information on a plurality of persons on a plurality of kinds of stimulation; and stimulation specification processing for specifying stimulation imparted to the object person on the basis of the pre-stimulation index acquired in the pre-stimulation index acquisition processing, the post-stimulation index acquired in the post-stimulation index acquisition processing, and a plurality of pieces of correlation information acquired in the correlation information acquisition processing.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a stimulus identification program, a stimulus identification device, and a stimulus identification system.

Background Art

[0002] In recent years, awareness of health has been increasing, and various devices and services for assisting in providing health-related information have begun to be provided. In particular, as an index for managing health, the number of users who emphasize the condition of the intestines is also increasing. Patent Document 1 discloses a system that displays the condition of a user's intestines as an intestine score using the sound information of the user's abdomen and the learning information prepared in advance.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a system such as Patent Document 1, in order for a user to obtain information regarding their own intestinal condition, it is necessary to input information such as diet content into the system. However, since there is a large amount of information to be input, there has been a problem that it is difficult for the user to continuously use the system. Therefore, in order to make the system easier to use, for example, there has been a desire to automatically identify the content of the stimulus received by the subject.

[0005] An object of the present disclosure is to identify the stimulus applied to a subject.

Means for Solving the Problems

[0006] The first aspect is directed to a stimulus identification program that causes a computer (200, 400) to execute a process of identifying a stimulus applied to a subject. In the stimulus identification program, an index related to bowel sounds is defined as a bowel sound index, the bowel sound index before a predetermined stimulus is applied is defined as a pre-stimulus index, the bowel sound index after the predetermined stimulus is applied is defined as a post-stimulus index, and information indicating the relationship between the pre-stimulus index and the ratio of the post-stimulus index to the pre-stimulus index is defined as correlation information. At this time, the stimulus identification program causes the computer (200, 400) to execute a pre-stimulus index acquisition process of acquiring the pre-stimulus index related to the subject, a post-stimulus index acquisition process of acquiring the post-stimulus index related to the subject, a correlation information acquisition process of acquiring the correlation information related to a plurality of people for a plurality of types of stimuli pre-stored in a storage device (420), and a stimulus identification process of identifying the stimulus applied to the subject based on the pre-stimulus index acquired in the pre-stimulus index acquisition process, the post-stimulus index acquired in the post-stimulus index acquisition process, and the plurality of pieces of correlation information acquired in the correlation information acquisition process.

[0007] In the first aspect, the stimulus identification program causes the computer (200, 400) to execute a stimulus identification process. The stimulus identification process identifies the stimulus applied to the subject based on the pre-stimulus index and the post-stimulus index related to the subject and a plurality of pieces of correlation information. Therefore, according to this aspect, the stimulus applied to the subject can be identified.

[0008] The second aspect is, in the first aspect, to cause the computer (200, 400) to execute a bowel sound acquisition process of acquiring the time-series data of the bowel sounds related to the subject, and a timing identification process of identifying the timing at which the stimulus was applied to the subject based on the time-series data of the bowel sounds acquired in the bowel sound acquisition process.

[0009] In a second aspect, the computer (200, 400) is made to execute a timing identification process by the stimulus identification program. The timing identification process identifies the timing at which the stimulus was applied to the subject based on the time-series data of bowel sounds. Thereby, the timing at which the stimulus was applied to the subject can be identified.

[0010] In a third aspect, in the first or second aspect, when the stimulus identified in the stimulus identification process is taken as a specific stimulus, a result display output process for outputting a signal for displaying result information including information on the specific stimulus on the display device (250) is executed by the computer (200, 400).

[0011] In a third aspect, the display device (250) that has received a signal from the computer (200, 400) that performs the result display output process displays information on the identified stimulus. Thereby, the identified stimulus can be presented to the subject.

[0012] In a fourth aspect, in the third aspect, based on the pre-stimulus index for the specific stimulus acquired in the pre-stimulus index acquisition process and the correlation information for the specific stimulus acquired in the correlation information acquisition process, an estimation process for estimating the post-stimulus index for the subject, and based on the difference between the post-stimulus index estimated for the specific stimulus in the estimation process and the post-stimulus index for the specific stimulus acquired in the post-stimulus index acquisition process, an effect determination process for determining the effect of the specific stimulus, and a process for outputting a signal for displaying result information including the effect as the result display output process on the display device (250) are executed by the computer (200, 400).

[0013] In a fourth aspect, the display device (250) that has received a signal from the computer (200, 400) that performs the result display output process displays the effect of the identified stimulus. Thereby, the effect of the identified stimulus can be presented to the subject.

[0014] The fifth aspect targets a stimulus identification device that identifies stimuli applied to a subject. The stimulus identification device uses an index related to bowel sounds as a bowel sound index, the bowel sound index before a predetermined stimulus is applied as a pre-stimulus index, the bowel sound index after a predetermined stimulus is applied as a post-stimulus index, and when information indicating the relationship between the pre-stimulus index and the ratio of the post-stimulus index to the pre-stimulus index is defined as correlation information, it acquires the pre-stimulus index for the subject, acquires the post-stimulus index for the subject, acquires the correlation information for multiple people regarding multiple types of stimuli pre-stored in a storage device (420), and includes a processing unit (430) that identifies the stimulus applied to the subject based on the acquired pre-stimulus index, the acquired post-stimulus index, and the acquired multiple pieces of correlation information.

[0015] In the fifth aspect, the processing unit (430) of the stimulus identification device identifies the stimulus applied to the subject based on the pre-stimulus index, the post-stimulus index, and the multiple pieces of correlation information. Thereby, the stimulus applied to the subject can be identified.

[0016] The sixth aspect targets a stimulus identification system. The stimulus identification system includes the stimulus identification device of the fifth aspect, a sound collection device (110) that collects the sound of the subject's abdomen, and a display device (250) for displaying information regarding the identified stimulus.

[0017] In the sixth aspect, a stimulus identification system that identifies the stimulus applied to the subject can be provided.

Brief Description of the Drawings

[0018]

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DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Note that the present disclosure is not limited to the embodiments shown below, and various modifications can be made without departing from the technical idea of the present disclosure. Since each drawing is for conceptually explaining the present disclosure, dimensions, ratios, or numbers may be exaggerated or simplified as necessary for easy understanding.

[0020] The stimulus identification device (P) of the present embodiment is a device that identifies stimuli applied to a subject. Here, the stimulus refers to a factor that affects the state of the intestine. The stimuli of the present embodiment include the intake of predetermined foods and beverages, various activities, etc. Foods and beverages include, for example, food, supplements, drinking water, etc. Activities include walking, yoga, etc. The stimulus identification device (P) of the present embodiment is provided in the stimulus identification system (1). The subject is a user who uses the stimulus identification system (1) and is a person to be identified for the stimulus.

[0021] (1) Stimulus identification system As shown in FIG. 1, the stimulus identification system (1) includes a sound collection unit (100), a terminal device (200), and a server device (400). The sound collection unit (100) and the terminal device (200) are connected by wireless communication. The terminal device (200) and the server device (400) are connected to the Internet.

[0022] In the stimulus identification system (1) of the present embodiment, the sound collection unit (100) acquires data on the abdominal sounds of the subject. The data on the abdominal sounds acquired by the sound collection unit (100) is transmitted to the terminal device (200) by wireless communication and converted into data on bowel sounds. The converted data on bowel sounds is transmitted to the server device (400) via the Internet. In the server device (400), the stimulus applied to the subject is identified based on the received data on bowel sounds. The subject can visually confirm the information output from the server device (400) by using the terminal device (200).

[0023] (1-1) Sound collection unit As shown in FIG. 2, the sound collection unit (100) has a microphone (110) and a communication unit (120). The microphone (110) corresponds to the sound collection device of the present disclosure.

[0024] The microphone (110) acquires (measures) data on the abdominal sounds of the subject. The abdominal sounds referred to here are the sounds emitted from the subject's abdomen. The abdominal sounds include bowel sounds emitted from the intestines. In addition to bowel sounds, the abdominal sounds include sounds emitted from organs such as the stomach and sounds emitted by the blood flow in the abdomen.

[0025] The microphone (110) is connected to the communication unit (120) via a wired or wireless communication line. The data on the abdominal sounds acquired by the microphone (110) is received by the communication unit (120). The communication unit (120) outputs the data on the abdominal sounds to the terminal device (200) by short-range wireless communication such as Bluetooth (registered trademark).

[0026] The sound collection unit (100) of the present embodiment is a small and portable unit. The sound collection unit (100) is attached so as to be in close contact with the subject's abdomen. The subject attaches the sound collection unit (100) to their own abdomen, for example, when lying on a bedding or sitting on a chair. Thereby, data on the abdominal sounds of the subject is acquired in the sound collection unit (100).

[0027] (1-2) Terminal device The terminal device (200) is a terminal device operated by the subject. The terminal device (200) of the present embodiment is a smartphone. The terminal device (200) may be a tablet terminal or a personal computer. The terminal device (200) includes a microcomputer and a memory device mounted on a control board. The memory device stores software for operating the microcomputer.

[0028] As shown in FIG. 3, the terminal device (200) has a communication unit (210), a terminal storage unit (220), a terminal processing unit (230), an input unit (240), and a display unit (250).

[0029] The communication unit (210) performs wireless communication with the communication unit (120) of the sound collection unit (100). The communication unit (210) performs wireless communication with the server device (400). The communication unit (210) is connectable to the Internet. The communication unit (210) may be connected to the Internet via a communication line using high-speed wireless communication technology, or may be connected to the Internet via a wireless router. The communication unit (210) of the present embodiment is connected to the server device (400) via the Internet.

[0030] The terminal storage unit (220) stores predetermined information in the terminal device (200). The terminal storage unit (220) has, as a functional component, an abdominal sound storage unit (221). The abdominal sound storage unit (221) stores the time-series data of the abdominal sound transmitted from the sound collection unit (100). In addition, the abdominal sound storage unit (221) stores the information of the time when the time-series data of the abdominal sound was measured, together with the time-series data of the corresponding abdominal sound. When the time-series data of the abdominal sound for a predetermined period is stored in the abdominal sound storage unit (221), the time-series data of the abdominal sound is transmitted to the terminal processing unit (230). The time-series data of the abdominal sound may be immediately deleted from the abdominal sound storage unit (221) after being transmitted to the terminal processing unit (230), or may be held until a predetermined period has elapsed.

[0031] The terminal processing unit (230) performs predetermined processing in the terminal device (200). The terminal processing unit (230) has, as a functional component, an intestinal sound identification unit (231). The intestinal sound identification unit (231) performs intestinal sound identification processing. The intestinal sound identification processing is a process of identifying intestinal sounds from the time-series data of the abdominal sounds of the subject transmitted from the sound collection unit (100) and extracting the time-series data of the intestinal sounds.

[0032] Here, bowel sounds are generated by the peristaltic movement of the intestine. The peristaltic movement is a movement in which the muscles of the intestine repeatedly contract and relax, causing the constricted parts of the intestine to move like waves. Due to this peristaltic movement, the contents of the intestine move and sounds are generated. That is, bowel sounds are closely related to the peristaltic movement of the intestine. Therefore, by acquiring bowel sounds, the state of the peristaltic movement of the intestine can be grasped. And from the state of the peristaltic movement of the intestine, the activity state of the intestine can be grasped.

[0033] In the bowel sound specifying unit (231), time-series data of bowel sounds is extracted by known means. That is, in the bowel sound specifying unit (231), the time-series data of bowel sounds may be extracted from abdominal sounds by any means. The time-series data of bowel sounds extracted by the bowel sound specifying unit (231) is transmitted from the communication unit (210) to the server device (400) together with the information on the time when the bowel sounds were measured.

[0034] The input unit (240) receives various input operations on the terminal device (200) from the subject. The input unit (240) in the present embodiment is a touch panel of a smartphone. The input unit (240) may be a button (for example, a keyboard) provided in the terminal device (200). The input unit (240) may be a microphone provided in the terminal device (200). When the input unit (240) is a microphone, an input operation is performed by the voice acquired from the microphone.

[0035] The subject operates the application software stored in the terminal device (200) using the input unit (240). By operating this application software, a signal for outputting information to the server device (400) can be transmitted, or the information output by the server device (400) can be displayed on the display unit (250).

[0036] The display unit (250) displays various information to the subject. Specifically, the information output from the server device (400) is displayed on the display unit (250). The display unit (250) in the present embodiment is a liquid crystal display of a smartphone. The display unit (250) of the terminal device (200) corresponds to the display device of the present disclosure.

[0037] (1-3) Server device The server device (400) is provided on the cloud of the Internet. In this embodiment, the server device (400) corresponds to the stimulus identification device (P) of the present disclosure.

[0038] The server device (400) includes a microcomputer and a memory device mounted on a control board. The memory device stores software for operating the microcomputer. The server device (400) is installed with the stimulus identification program of this embodiment. The stimulus identification program causes the server device (400) as a computer to execute the processes described below. The server device (400) functions as a stimulus identification device (P) by executing this stimulus identification program.

[0039] As shown in FIG. 4, the server device (400) includes a communication unit (410), a storage unit (420), and a processing unit (430).

[0040] The communication unit (410) performs wireless communication with the communication unit (210) of the terminal device (200). The communication unit (410) can be connected to the Internet. The communication unit (410) is connected to the communication unit (210) of the terminal device (200) via the Internet.

[0041] The storage unit (420) stores predetermined information in the server device (400). Specifically, the storage unit (420) stores a stimulus identification program for causing the processing unit (430) to execute a predetermined operation and data necessary for the operation of the processing unit (430). The storage unit (420) includes at least one of an HDD (Hard Disk Drive), a RAM (Random Access Memory), and an SSD (Solid State Drive). The storage unit (420) of the server device (400) corresponds to the storage device of the present disclosure.

[0042] The memory unit (420) includes, as functional components, a correlation information storage unit (421) and a user information storage unit (422).

[0043] A plurality of correlation information is pre-stored in the correlation information storage unit (421). Each correlation information is correlation information regarding a plurality of persons. Each correlation information has a different type of stimulus targeted. Specifically, the correlation information storage unit (421) stores correlation information regarding beer, correlation information regarding capsaicin, correlation information regarding yoga, and the like. Details of the correlation information will be described later.

[0044] User information is stored in the user information storage unit (422). The user information is information in which identification information for identifying a target person who uses the stimulus identification system (1) and information regarding the target person are associated. Specifically, the user information includes information transmitted from the sound collection unit (100) and the terminal device (200), information output by the processing unit (430), and the like. The information transmitted from the sound collection device (110) and the terminal device (200) includes, for example, basic information of the target person, time-series data of the bowel sounds of the target person, information on the measurement time of the bowel sounds, and the like. The information output by the processing unit (430) includes, for example, the content of the stimulus applied to the target person, the timing at which the stimulus was applied, a pre-stimulus index and a post-stimulus index described later, and the like.

[0045] The processing unit (430) performs predetermined processing in the server device (400). The processing unit (430) includes, as functional components, a bowel sound acquisition unit (431), a timing identification unit (432), a pre-stimulus index acquisition unit (433), a post-stimulus index acquisition unit (434), a correlation information acquisition unit (435), a stimulus identification unit (436), an estimation unit (437), an effect determination unit (438), and a result display output unit (439). The processing unit (430) functions as each of the above units by executing a stimulus identification program stored in the memory unit (420).

[0046] (2) Details of the processing unit The intestinal sound acquisition unit (431), timing identification unit (432), pre - stimulation index acquisition unit (433), post - stimulation index acquisition unit (434), correlation information acquisition unit (435), stimulation identification unit (436), estimation unit (437), effect determination unit (438), and result display output unit (439) of the processing unit (430) will be described.

[0047] (2 - 1) Intestinal sound acquisition unit The intestinal sound acquisition unit (431) performs intestinal sound acquisition processing. The intestinal sound acquisition processing is a process of acquiring time - series data of intestinal sounds regarding the subject. In the intestinal sound acquisition processing of the present embodiment, the time - series data of intestinal sounds received by the communication unit (410) and information on the measurement time of the intestinal sounds corresponding to the time - series data are acquired. The intestinal sound acquisition unit (431) outputs the acquired time - series data of intestinal sounds and information on the measurement time corresponding to the time - series data to the timing identification unit (432), and stores them in the user information storage unit (422) of the storage unit (420).

[0048] (2 - 2) Timing identification unit The timing identification unit (432) performs timing identification processing. The timing identification processing is a process of identifying the timing at which a stimulus is applied to the subject based on the time - series data of intestinal sounds acquired in the intestinal sound acquisition processing. In the timing identification processing of the present embodiment, the timing at which the stimulus is acquired is identified based on changes in parameters such as the number of intestinal sounds per unit time, the amplitude of intestinal sounds, and the interval between intestinal sounds in a predetermined time. Specifically, the timing identification unit (432) determines that a predetermined stimulus has been acquired before and after the time point when the change in the above - mentioned parameters becomes large. Then, the timing identification unit (432) outputs the measurement time of the intestinal sound corresponding to the time point when the change in the above - mentioned parameters becomes large as the timing at which the predetermined stimulus is applied.

[0049] Here, the specified timing is specified within a certain period with a certain width (for example, 10 minutes). Specifically, the timing specifying unit (432) outputs information indicating that a predetermined stimulus was applied between 7:00 pm and 7:10 pm. The timing specifying unit (432) outputs the output timing to the pre-stimulus index acquisition unit (433) and the post-stimulus index acquisition unit (434), and stores it in the user information storage unit (422) of the storage unit (420).

[0050] (2-3) Pre-stimulus index acquisition unit The pre-stimulus index acquisition unit (433) performs pre-stimulus index acquisition processing. The pre-stimulus index acquisition processing is processing for acquiring a pre-stimulus index regarding the subject. In the pre-stimulus index acquisition processing of the present embodiment, an intestinal sound index is calculated based on the time-series data of intestinal sounds before the timing specified by the timing specifying unit (432) (specifically, immediately before), and a pre-stimulus index is acquired based on the calculated intestinal sound index. Thereby, the pre-stimulus index acquisition unit (433) acquires a pre-stimulus index based on the measured value.

[0051] Here, the pre-stimulus index is the intestinal sound index before a predetermined stimulus is applied. The intestinal sound index is an index regarding intestinal sounds. The intestinal sound index of the present embodiment is the number of occurrences of intestinal sounds per unit time (1 minute) (so-called BS occurrence number).

[0052] In the present embodiment, in order to improve the accuracy of the pre-stimulus index, the average value of the intestinal sound index in a predetermined pre-stimulus application interval (for example, 5 minutes) is used as the pre-stimulus index. That is, the pre-stimulus index of the present embodiment is the average value of the number of BS occurrences per minute in a predetermined pre-stimulus application interval. The intestinal sound index may be the length of intestinal sounds per unit time (BS length), the interval between intestinal sounds (BS interval), or the intensity of intestinal sounds (BS power). The pre-stimulus index acquisition unit (433) outputs the acquired pre-stimulus index information to the stimulus specifying unit (436) and the effect determination unit (438), and stores it in the user information storage unit (422) of the storage unit (420).

[0053] (2-4) Post-stimulus index acquisition unit The post-stimulation index acquisition unit (434) performs post-stimulation index acquisition processing. The post-stimulation index acquisition processing is processing for acquiring a post-stimulation index regarding the subject. In the post-stimulation index acquisition processing, a bowel sound index is calculated based on the time-series data of bowel sounds after (specifically, immediately after) the timing specified by the timing specification unit (432), and a post-stimulation index is acquired based on the calculated bowel sound index. Thereby, the post-stimulation index acquisition unit (434) acquires a post-stimulation index based on the measured value.

[0054] In the present embodiment, in order to improve the accuracy of the post-stimulation index, the average value of the bowel sound index in a predetermined post-stimulation period (for example, 10 minutes) is used as the post-stimulation index. That is, the post-stimulation index of the present embodiment is the average value of the number of BS occurrences per minute in a predetermined post-stimulation period.

[0055] The post-stimulation index acquisition unit (434) outputs the information of the acquired post-stimulation index to the stimulation specification unit (436) and the effect determination unit (438), and stores it in the user information storage unit (422) of the storage unit (420).

[0056] (2-5) Correlation information acquisition unit The correlation information acquisition unit (435) performs correlation information acquisition processing. The correlation information acquisition processing is processing for acquiring correlation information regarding a plurality of types of stimuli from the correlation information storage unit (421). The correlation information acquisition unit (435) may acquire the correlation information regarding all types of stimuli stored in the correlation information storage unit (421), or may acquire the correlation information regarding some of the stimuli stored in the correlation information storage unit (421). The correlation information acquisition unit (435) outputs all the acquired correlation information to the stimulation specification unit (436).

[0057] (2-6) Stimulation specification unit The stimulation specific part (436) performs stimulation specific processing. The stimulation specific processing is processing for specifying the stimulation applied to the subject based on the pre-stimulation index acquired in the pre-stimulation index acquisition processing, the post-stimulation index acquired in the post-stimulation index acquisition processing, and the plurality of correlation information acquired in the correlation information acquisition processing. The stimulation specific part (436) of the present embodiment specifies the stimulation applied to the subject for each of the plurality of timings specified by the timing specific part (432). The stimulation specific part (436) outputs the information of all the specified stimulations to the estimation part (437) and the result display output part (439), and stores it in the user information storage part (422) of the storage part (420).

[0058] (2-7) Estimation part The estimation part (437) performs estimation processing. The estimation processing is processing for estimating the post-stimulation index regarding the subject based on the pre-stimulation index regarding the subject acquired in the pre-stimulation index acquisition processing and the correlation information regarding the specified stimulation (hereinafter referred to as the specific stimulation) acquired in the correlation information acquisition processing. The estimation part (437) outputs the estimated post-stimulation index to the effect determination part (438), and stores it in the user information storage part (422) of the storage part (420).

[0059] (2-8) Effect determination part The effect determination part (438) performs effect determination processing. In the effect determination processing, based on the difference ΔZc between the post-stimulation index estimated for the specific stimulation in the estimation processing and the post-stimulation index regarding the specific stimulation acquired in the post-stimulation index acquisition processing, it is processing for determining the effect of the specific stimulation.

[0060] The effect here refers to the reaction of the intestine due to the stimulation. The smaller the difference ΔZc, the lower the effect of the specific stimulation, and the larger the difference ΔZc, the higher the effect of the specific stimulation. In other words, when the difference ΔZc is small, it indicates that the stimulation applied to the subject is a stimulation that does not change the subject's intestine very actively. When the difference ΔZc is large, it indicates that the stimulation applied to the subject is a stimulation that actively changes the subject's intestine.

[0061] The effect determination unit (438) outputs the determined effect to the result display output unit (439) and stores it in the user information storage unit of the storage unit (420).

[0062] (2-9) Result display output unit The result display output unit (439) performs result display output processing. The result display output processing is processing for outputting a signal for displaying result information on the display unit (250) of the terminal device (200). The result information of the present embodiment includes a specific stimulus, the timing when the specific stimulus is applied, and the effect of the specific stimulus. The result display output unit (439) outputs the above result information to the terminal device (200) via the communication unit (410).

[0063] (3) Correlation information Next, the correlation information will be described in detail.

[0064] The correlation information is information created in advance based on data of bowel sound indexes before and after applying a predetermined stimulus to a plurality of people. This correlation information is created based on the experimental results of a plurality of healthy subjects.

[0065] As shown in FIG. 5, the correlation information is information showing the relationship between the pre-stimulus index Xa and the ratio R (R = Xb / Xa) of the post-stimulus index Xb to the pre-stimulus index Xa. Specifically, the correlation information is a correlation diagram with the pre-stimulus index Xa on the horizontal axis and the ratio R on the vertical axis.

[0066] The pre-stimulus index Xa in the correlation diagram of the present embodiment is the average value of the number of BS occurrences per minute in a predetermined pre-stimulus interval (5 minutes in the present embodiment). Also, the post-stimulus index Xb in the correlation diagram of the present embodiment is the average value of the number of BS occurrences per minute in a predetermined post-stimulus interval (10 minutes in the present embodiment). That is, the indexes used in the correlation information are the same as the indexes acquired by each of the pre-stimulus index acquisition unit (433) and the post-stimulus index acquisition unit (434).

[0067] As shown in FIG. 5, in the normal region N in the correlation information, the ratio R tends to decrease as the pre-stimulus index Xa increases. That is, in this correlation information, it can be said that there is a negative correlation between the pre-stimulus index Xa and the ratio R. This indicates that the intestinal activity after the stimulus is applied is affected by the intestinal activity state before the stimulus is applied. Also, the region lower left than the normal region N in FIG. 5 is a region where the change in intestinal activity is relatively small before and after the stimulus is applied, so it indicates that the intestinal activity state is stagnant. On the other hand, the region upper right than the normal region N in FIG. 5 is a region where the change in intestinal activity is relatively large before and after the stimulus is applied, so it indicates that the intestinal activity state is overly active.

[0068] And, in the correlation information when a strong stimulus that strongly acts on the intestine shown in FIG. 5(a) is applied and the correlation information when a weak stimulus that does not strongly act on the intestine shown in FIG. 5(b) is applied, the negative correlation is common. On the other hand, for each stimulus, the slope of the straight line in the correlation diagram is different. Therefore, multiple types of stimuli have different correlation information.

[0069] (4) Operation of the Stimulus Identification System Next, the operation of the stimulus identification system (1) will be described.

[0070] In the stimulus identification system (1) of the present embodiment, when the subject operates a predetermined application stored in the terminal device (200), the subject measures abdominal sounds with the sound collection unit (100), accesses the server device (400) via the terminal device (200), and checks the information output from the server device (400).

[0071] (4-1) Operations of the Sound Collection Unit and the Terminal Device As shown in FIG. 6, when the subject starts the operation of the stimulus identification system (1) by starting a predetermined application stored in the terminal device (200), step S1 is performed.

[0072] In step S1, the microphone (110) of the sound collection unit (100) measures the abdominal sound of the subject. Next, in step S2, the communication unit (120) of the sound collection unit (100) transmits the time-series data of the measured abdominal sound (hereinafter referred to as abdominal sound data) to the terminal device (200). The abdominal sound data is received by the communication unit (210) of the terminal device (200) via a wireless communication line.

[0073] Next, in step S3, the storage unit (420) of the terminal device (200) stores the received abdominal sound data. Next, in step S4, the terminal processing unit (230) of the terminal device (200) determines whether abdominal sound data for a predetermined time has been received. If received, step S5 is performed. If not received, step S4 is performed.

[0074] In step S5, the terminal processing unit (230) of the terminal device (200) identifies the bowel sound of the subject based on the abdominal sound data for the subject for a predetermined period, and outputs the time-series data of the bowel sound of the subject (hereinafter referred to as bowel sound data). Next, in step S6, the communication unit (210) of the terminal device (200) transmits the output bowel sound data and information on the time when the bowel sound data was measured (hereinafter referred to as measurement time information) to the server device (400). The bowel sound data and the measurement time information are received by the communication unit (410) of the server device (400) via the Internet.

[0075] The terminal device (200) of the present embodiment continuously transmits bowel sound data to the server device (400) while the stimulus identification system (1) is operating. The terminal device (200) may transmit bowel sound data to the server device (400) only when it receives a command from the server device (400) during the operation of the stimulus identification system (1).

[0076] (4-2) Operation of the server device As shown in FIG. 7, when the communication unit (410) of the server device (400) receives the bowel sound data and the measurement time information, step S11 is performed.

[0077] In step S11, the processing unit (430) performs bowel sound acquisition processing. Specifically, the processing unit (430) acquires the received bowel sound data and information on the measurement time. Then, the processing unit (430) outputs the acquired bowel sound data and information on the measurement time to the timing identification unit (432) and stores them in the user information storage unit (422) of the storage unit (420).

[0078] Next, in step S12, the processing unit (430) performs timing identification processing. Here, when a plurality of stimuli are applied to the subject, the processing unit (430) identifies and outputs the timing of each application of the plurality of stimuli. In other words, the processing unit (430) outputs a plurality of timings.

[0079] Next, in step S13, the processing unit (430) performs processing to identify the stimuli applied at each timing. When a plurality of stimuli are applied to the subject, the processing unit (430) identifies the content of the stimuli for all the timings identified by the timing identification unit (432). Details of the processing for identifying the stimuli will be described later.

[0080] Next, in step S14, the processing unit (430) performs processing to determine the effect of each stimulus. Details of the processing for determining the effect of the stimulus will be described later. When a plurality of stimuli are applied to the subject, the processing unit (430) determines the effect of the stimulus for all the timings identified by the timing identification unit (432).

[0081] Next, in step 15, the processing unit (430) outputs a signal for displaying the result information. Specifically, the processing unit (430) outputs a signal for causing the display unit (250) of the terminal device (200) to display result information including the specific stimulus, the timing of the specific stimulus, and the effect of the specific stimulus. The information on the specific stimulus included in the signal output here may be one or a plurality.

[0082] (4-3) Processing for Identifying Stimuli Next, the process of identifying a stimulus will be described with reference to FIGS. 8 and 9. Here, in the following process, the stimulus to be identified is referred to as the target stimulus.

[0083] As shown in FIG. 8, in step S21, the processing unit (430) performs a pre-stimulus index acquisition process. Specifically, the processing unit (430) calculates and acquires, as the pre-stimulus index Y, the average value of the number of BS occurrences per minute in a predetermined pre-stimulus application section based on the bowel sound data immediately before the timing specified by the timing specifying unit (432) for the target stimulus.

[0084] Next, in step S22, the processing unit (430) performs a post-stimulus index acquisition process. Specifically, the processing unit (430) calculates and acquires, as the post-stimulus index Z, the average value of the number of BS occurrences per minute in a predetermined post-stimulus application section based on the bowel sound data immediately after the timing specified by the timing specifying unit (432) for the target stimulus.

[0085] Next, in step S23, the processing unit (430) performs a correlation information acquisition process. Specifically, the processing unit (430) acquires the correlation information C regarding a plurality of types of stimuli from the correlation information storage unit (421) of the storage unit (420). In other words, the processing unit (430) acquires a plurality of correlation information C.

[0086] Next, in step S24, the processing unit (430) performs a stimulus identification process. In the stimulus identification process, the target stimulus is identified based on the pre-stimulus index Y and the post-stimulus index Z regarding the target stimulus and the plurality of correlation information C. Specifically, first, the processing unit (430) calculates the ratio Ry (R = Y / Z) of the post-stimulus index Z to the pre-stimulus index Y based on the pre-stimulus index Y and the post-stimulus index Z regarding the target stimulus. Next, the processing unit (430) searches for the correlation information C among the plurality of correlation information C where the point where the pre-stimulus index Y and the ratio Ry regarding the target stimulus intersect is located in the normal region N. Next, the processing unit (430) determines the stimulus corresponding to the discovered correlation information C as the specific stimulus.

[0087] For example, as shown in FIG. 9, for each of a plurality of pieces of correlation information, a point (black square mark in FIG. 9) where the pre-stimulus index Y and the ratio Ry regarding the target stimulus intersect is arranged. In this example, the point where the pre-stimulus index Y and the ratio Ry regarding the target stimulus intersect is located within the normal region N of the correlation information of stimulus A. Therefore, in this example, the target stimulus is determined to be stimulus A.

[0088] In this way, in the processing unit (430), the stimulus applied to the subject is specified. When a plurality of timings are specified in the timing specifying unit (432), the processing unit (430) repeats the process of specifying the stimulus as described above for all the specified timings. Note that the processing of steps S21 to S23 may be performed in a different order.

[0089] (4-4) Process for determining the effect of the stimulus Next, the process for determining the effect of the stimulus will be described with reference to FIGS. 10 to 12.

[0090] As shown in FIG. 10, in step S31, the processing unit (430) acquires the pre-stimulus index Y regarding the specific stimulus from the storage unit (420). Next, in step S32, the processing unit (430) acquires the correlation information C regarding the specific stimulus from the storage unit (420). Next, in step S33, the processing unit (430) performs an estimation process. Specifically, the processing unit (430) estimates the post-stimulus index Z' regarding the subject based on the pre-stimulus index Y regarding the specific stimulus and the correlation information C regarding the specific stimulus.

[0091] In the estimation process, first, the ratio Ry corresponding to the pre-stimulus index Y is derived from the correlation information C acquired by the processing unit (430). Specifically, as shown in FIG. 11, in the correlation diagram, the value (ratio Ry) on the vertical axis corresponding to the pre-stimulus index Y is calculated. Next, the processing unit (430) calculates the post-stimulus index Z' estimated for the specific stimulus by multiplying the pre-stimulus index Y by the ratio Ry (Ry × Y = Z'). Thereby, the post-stimulus index Z' regarding the specific stimulus is estimated.

[0092] Next, in step S34, the processing unit (430) acquires the post - stimulus index Z regarding the specific stimulus from the storage unit (420). Next, in step S35, the processing unit (430) performs an effect determination process. Specifically, the processing unit (430) determines the effect of the specific stimulus based on the difference ΔZc (ΔZc = Z - Z') between the estimated post - stimulus index Z' and the post - stimulus index Z calculated based on the measured value.

[0093] In the effect determination process of the processing unit (430) of the present embodiment, the effect is determined at four levels. Specifically, as shown in FIG. 12, when the difference ΔZc is smaller than the first value (for example, 0), the effect is determined as "0" (Yes in step S41). When the difference ΔZc is equal to or greater than the first value and smaller than the second value (for example, 10), the effect is determined as "1" (Yes in step S42). When the difference ΔZc is equal to or greater than the second value and smaller than the third value (for example, 30), the effect is determined as "2" (Yes in step S43). When the difference ΔZc is equal to or greater than the third value, the effect is determined as "3" (No in step S43). Here, the first value is a value greater than 0. The second value is a value greater than the first value. The third value is a value greater than the second value. The number of levels of the effect is merely an example, and it may be two levels, three levels, or five levels or more.

[0094] (5) Display of the terminal device Next, the screen display of the terminal device (200) used by the subject in the stimulus identification system (1) will be described with reference to FIG. 13. The screen display described below is displayed on the display unit (250) based on the control of the terminal processing unit (230) of the terminal device (200).

[0095] As shown in FIG. 13, a result display screen (910) is displayed on the display unit (250) of the terminal device (200). The result display screen (910) includes a bowel sound index display section (911), a specific stimulus display section (912), a timing display section (913), an effect display section (914), a result graph display section (915), a result index change display section (916), and an advice display section (917).

[0096] The bowel sound index display unit (911) displays the current bowel sound index. The specific stimulus display unit (912) displays the identified stimulus (specific stimulus). The timing display unit (913) displays the timing at which each specific stimulus was applied. The effect display unit (914) displays the effect of each specific stimulus. The result graph display unit (915) displays the state of the bowel before and after the stimulus as a graph. The result index change display unit (916) displays the measured pre-stimulus index and the measured post-stimulus index. The advice display unit (917) displays advice regarding the stimulus.

[0097] In the effect display unit (914) of the present embodiment, the effect determined in the effect determination process is displayed. In the present embodiment, the effect "0" is displayed as "-", the effect "1" is displayed as "+", the effect "2" is displayed as "++", and the effect "3" is displayed as "+++". Note that in the effect display unit (935), the effect may be displayed in the form of a percentage (%) or may be displayed after being converted into points.

[0098] (6) Features (6-1) The stimulus identification program of the present embodiment causes the server device (400) to execute a stimulus identification process for identifying the stimulus applied to the subject based on the pre-stimulus index acquired in the pre-stimulus index acquisition process, the post-stimulus index acquired in the post-stimulus index acquisition process, and the plurality of correlation information acquired in the correlation information acquisition process. Thereby, the stimulus applied to the subject can be identified.

[0099] Here, for example, when the subject uses a system that can obtain information regarding the condition of their bowel by inputting information regarding stimuli such as the content of their diet, by the computer executing the stimulus identification program of the present embodiment, the content of the stimulus applied to the subject is automatically identified. Thereby, the subject does not need to input the content of the stimulus they received into the system each time, and that effort can be saved. Therefore, it becomes easier for the subject to utilize a system that can obtain information regarding the condition of their bowel.

[0100] (6-2) The stimulation identification program of this embodiment causes the server device (400) to execute timing identification processing for identifying the timing when the stimulation was applied to the subject based on the time-series data of the bowel sounds acquired in the bowel sound acquisition processing. Thereby, the timing when the stimulation was applied to the subject can be identified.

[0101] When a computer executes the stimulation identification program of this embodiment, the timing of the stimulation applied to the subject is also automatically identified. Therefore, when using a system that can acquire information regarding the condition of one's own intestines by inputting information regarding the stimulation such as the diet content as described above, the subject does not need to input the timing of the stimulation received each time to the system, and the trouble can be saved. Therefore, it becomes easier for the subject to utilize a system that can acquire information regarding the condition of one's own intestines.

[0102] (6-3) The stimulation identification program of this embodiment causes the server device (400) to execute result display output processing for outputting a signal for displaying result information including information on the specific stimulation to the display device (250). Therefore, the display device (250) that has received the signal from the server device (400) that performs the result display output processing displays the information on the identified stimulation. Thereby, the identified stimulation can be presented to the subject.

[0103] (6-4) The stimulation identification program of this embodiment includes estimation processing for estimating a post-stimulation index regarding the subject based on a pre-stimulation index regarding the specific stimulation and correlation information regarding the specific stimulation, and an effect determination processing for determining the effect of the specific stimulation based on the difference between the post-stimulation index estimated for the specific stimulation and the measured post-stimulation index regarding the specific stimulation, and a processing for outputting a signal for displaying result information including the effect to the display device (250) as the result display output processing, and causes the server device (400) to execute these processes.

[0104] Therefore, the display device (250) that has received the signal from the server device (400) that performs the result display output processing displays the effect of the identified stimulation. Thereby, the effect of the identified stimulation can be presented to the subject.

[0105] (6-5) The stimulus identification device (P) of this embodiment acquires a pre-stimulus index regarding the subject, acquires a post-stimulus index regarding the subject, acquires correlation information regarding a plurality of people for a plurality of types of stimuli pre-stored in the storage device (420), and based on the acquired pre-stimulus index, the acquired post-stimulus index, and the acquired plurality of correlation information, includes a processing unit (430) that identifies the stimulus applied to the subject. Thereby, the stimulus applied to the subject can be identified.

[0106] (6-6) The stimulus identification system (1) of this embodiment includes a stimulus identification device (P), a sound collection device (110) that collects the sound of the subject's abdomen, and a display device (250) for displaying information regarding the identified stimulus. Thereby, a stimulus identification system that identifies the stimulus applied to the subject can be provided.

[0107] (7) Modification example The above embodiment may be the following modification examples. In the following description, in principle, the points different from the above embodiment will be described.

[0108] (7-1) Modification example 1 In this embodiment, on the result display screen (910) of the terminal device (200), it may not be necessary to display the effects of each specific stimulus.

[0109] Specifically, as shown in FIG. 14, in the server device (400) of this modification example, the processing unit (430) may not have an estimation unit (437) and an effect determination unit (438) as functional elements. Therefore, in the operation of the server device (400) in this modification example, the process of step S14 in FIG. 7 is not performed. Thereby, as shown in FIG. 15, on the result display screen (910) displayed on the terminal device (200), the effect display unit (914) is not included.

[0110] (7-2) Modification example 2 In this embodiment, the stimulus identification program may not execute the timing identification process. Specifically, as shown in FIG. 16, in the server device (400) of this modification, the processing unit (430) may not have a timing identification unit (432) as a functional element. Therefore, in the operation of the server device (400) in this modification, the process of step S12 in FIG. 7 is not performed. As a result, as shown in FIG. 16, the result display screen (910) displayed on the terminal device (200) does not include a timing display unit (913).

[0111] When the processing unit (430) of the server device (400) does not have a timing identification unit (432), by operating the input unit (240) of the terminal device (200) by the subject, for example, information on the time of eating or the time of exercise may be transmitted from the terminal device (200) to the server device (400).

[0112] 《Other Embodiments》 Regarding the above embodiment, the following configuration may be adopted.

[0113] In the stimulus identification system (1) of the above embodiment, the stimulus identification device (P) may be the terminal device (200) in which the stimulus identification program of the above embodiment is installed. In this case, the stimulus identification program is a program for causing the terminal device (200), which is a computer, to execute the processes performed by the above-described stimulus identification device (P). The terminal device (200) functions as a stimulus identification device (P) by executing the stimulus identification program.

[0114] In the stimulus identification system (1) of the above embodiment, the bowel sound identification process is performed in the terminal processing unit (230) of the terminal device (200), but the bowel sound identification process may be performed in the processing unit (430) of the server device (400). In this case, the processing unit (430) of the server device (400) has a bowel sound identification unit as a functional component.

[0115] In the stimulus identification system (1) of the above-described embodiment, if the information on the result display screen (910) displayed on the display unit (250) of the terminal device (200) is incorrect, the subject may be able to correctly correct the information on the result display screen (910) by operating the input unit (240) of the terminal device (200). In this case, the information input from the input unit (240) is transmitted from the terminal device (200) to the server device (400), and the correct information is stored in the storage unit (420).

[0116] Although the embodiments and modification examples have been described above, it will be understood that various changes in form and detail are possible without departing from the spirit and scope of the claims. Also, the elements according to the above embodiments, modification examples, and other embodiments may be appropriately combined or replaced.

[0117] The above descriptions such as "first", "second", "third",... are used to distinguish the phrases to which these descriptions are given, and do not limit even the number and order of those phrases.

Industrial Applicability

[0118] As described above, the present disclosure is useful for a stimulus identification program, a stimulus identification device, and a stimulus identification system.

Explanation of Reference Numerals

[0119] 1 Stimulus identification system 110 Microphone (sound collection device) 200, 400 Computers 250 Display unit (display device) 420 Storage unit (storage device) 430 Processing unit P Stimulus identification device

Claims

1. A stimulus identification program that causes a computer (200, 400) to execute a process of identifying a stimulus applied to a subject, wherein an index related to bowel sounds is defined as a bowel sound index, and the bowel sound index is the number of occurrences of bowel sounds per predetermined time, the length of bowel sounds, the interval between bowel sounds, or the intensity of bowel sounds, the bowel sound index before a predetermined stimulus, which is a factor affecting the state of the intestine, is defined as a pre-stimulus index, the bowel sound index after the predetermined stimulus is defined as a post-stimulus index, when information indicating the relationship between the pre-stimulus index and the post-stimulus index is defined as correlation information, the computer (200, 400) is caused to execute a pre-stimulus index acquisition process for acquiring the pre-stimulus index related to the subject, execute a post-stimulus index acquisition process for acquiring the post-stimulus index related to the subject, execute a correlation information acquisition process for acquiring the correlation information related to a plurality of healthy subjects for a plurality of types of stimuli pre-stored in a storage device (420), and execute a stimulus identification process for identifying the stimulus applied to the subject based on the pre-stimulus index acquired in the pre-stimulus index acquisition process, the post-stimulus index acquired in the post-stimulus index acquisition process, and the plurality of pieces of correlation information acquired in the correlation information acquisition process. Stimulus identification program.

2. The correlation information is information indicating the relationship between the pre-stimulus index and the ratio of the post-stimulus index to the pre-stimulus index. The stimulus identification program according to claim 1.

3. A bowel sound acquisition process for acquiring time-series data of the bowel sounds related to the subject, and a timing identification process for identifying the timing at which the stimulus was applied to the subject based on the time-series data of the bowel sounds acquired in the bowel sound acquisition process are caused to be executed by a computer (200, 400). The stimulus identification program according to claim 1 or 2.

4. When the stimulus identified in the stimulus identification process is defined as a specific stimulus, a result display output process for outputting a signal for displaying result information including information on the specific stimulus on a display device (250) is caused to be executed by a computer (200, 400). The stimulus identification program according to claim 1 or 2.

5. An estimation process for estimating the post-stimulus index related to the subject based on the pre-stimulus index related to the specific stimulus acquired in the pre-stimulus index acquisition process and the correlation information related to the specific stimulus acquired in the correlation information acquisition process. An effect determination process for determining the effect of the specific stimulus based on the difference between the post-stimulus index estimated for the specific stimulus in the above-mentioned estimation process and the post-stimulus index for the specific stimulus obtained in the post-stimulus index acquisition process, Causing the computer (200, 400) to execute a process of outputting a signal for displaying result information including the above-mentioned effect to the display device (250) as the above-mentioned result display output process The stimulus identification program according to claim 4.

6. A stimulus identification device for identifying a stimulus applied to a subject, Regarding the index related to bowel sounds as the bowel sound index, the bowel sound index is the number of occurrences of bowel sounds per predetermined time, the length of bowel sounds, the interval between bowel sounds, or the intensity of bowel sounds, Regarding the bowel sound index before the application of a predetermined stimulus that is a factor affecting the state of the intestine as the pre-stimulus index, Regarding the bowel sound index after the application of the above-mentioned predetermined stimulus as the post-stimulus index, When the information indicating the relationship between the above-mentioned pre-stimulus index and the ratio of the above-mentioned post-stimulus index to the above-mentioned pre-stimulus index is defined as correlation information, Obtaining the above-mentioned pre-stimulus index regarding the subject, Obtaining the above-mentioned post-stimulus index regarding the subject, Obtaining the above-mentioned correlation information regarding a plurality of healthy subjects for a plurality of types of stimuli pre-stored in the storage device (420), Comprising a processing unit (430) for identifying the stimulus applied to the subject based on the obtained pre-stimulus index, the obtained post-stimulus index, and the obtained plurality of the above-mentioned correlation information Stimulus identification device.

7. The above-mentioned correlation information is information indicating the relationship between the above-mentioned pre-stimulus index and the ratio of the above-mentioned post-stimulus index to the above-mentioned pre-stimulus index The stimulus identification device according to claim 6.

8. The stimulus identification device according to claim 6 or 7, A sound collection device (110) for collecting the sound of the subject's abdomen, And a display device (250) for displaying information regarding the identified stimulus. Stimulus identification system.

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