Biological information measuring system and toilet seat device

Abstract

A biological information measurement system according to an embodiment of the present invention measures biological information of a user in a toilet on the basis of a defecation gas discharged into a bowl of a closet pan provided in the toilet, and is characterized by comprising: a gas detection device provided with a first gas sensor, a second gas sensor, and a controller; the catalyst is reacted with hydrogen contained in the gas; and a second gas sensor that reacts with hydrogen and an odor gas containing a sulfur component. And a control device for controlling the gas detection device, the control device being configured so as to calculate a second calculation value corresponding to the hydrogen gas in the second gas sensor on the basis of a plurality of calculation values corresponding to the hydrogen gas contained in the gas, and to calculate a second calculation value corresponding to the hydrogen gas in the second gas sensor on the basis of the detection result of the second gas sensor and the second calculation value. And a controller configured to calculate a third calculation value corresponding to the odor gas, the plurality of calculation values including a first calculation value corresponding to hydrogen gas obtained based on a detection result of the first gas sensor.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to a biological information measurement system and a toilet device. BACKGROUND

[0002] In the past, a health measurement device that detects a defecation gas discharged at the same time as a stool, measures hydrogen sulfide gas that is an example of a malodor gas included in the defecation gas, and measures a state in the intestines based on the hydrogen sulfide gas is known (for example, refer to Patent Literature 1). Further, a biological information system that analyzes a physical condition of a measurer every day based on data of a health gas constituted by at least one of hydrogen gas, carbon dioxide gas, or methane gas and a malodor gas including a sulfur component included in a defecation gas is known (for example, refer to Patent Literature 2). For example, in detecting a malodor gas, in order to suppress the influence of hydrogen gas, a technique is provided in which the influence of hydrogen gas detected by a hydrogen gas sensor is separated from a detection result based on measurement of the malodor gas, and the amount of the malodor gas is calculated.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT LITERATURE

[0005] Patent Literature 1: Japanese Patent Application Laid-Open No. 2009-250922

[0006] Patent Literature 2: Japanese Patent No. 6674623 SUMMARY

[0007] Problem to be solved by the invention

[0008] However, the above-described prior art has room for improvement. For example, separating the influence of hydrogen gas detected by a hydrogen gas sensor from a detection result based on measurement of a malodor gas only sometimes makes it difficult to perform appropriate gas measurement due to measurement deviation of the hydrogen gas sensor. Therefore, it is desirable to provide a technique capable of appropriately performing processing based on gas measurement.

[0009] An object of embodiments of the present disclosure is to provide a biological information measurement system and a toilet device capable of appropriately performing processing based on gas measurement.

[0010] Means for solving the problem

[0011] A biological information measuring system according to an embodiment is characterized by measuring biological information of a user of a toilet based on a defecation gas discharged into a bowl of a toilet bowl provided in the toilet, the biological information measuring system including: a gas detecting device including a first gas sensor that reacts with hydrogen contained in a gas and a second gas sensor that reacts with a malodor gas containing a sulfur component and hydrogen; and a control device that controls the gas detecting device, the control device configured to calculate a second calculation value corresponding to hydrogen of the second gas sensor based on a plurality of calculation values corresponding to hydrogen contained in a gas, calculate a third calculation value corresponding to the malodor gas based on a detection result of the second gas sensor and the second calculation value, and estimate a health state of the user or information related to the health state based on the third calculation value, the plurality of calculation values including a first calculation value corresponding to hydrogen calculated based on a detection result of the first gas sensor.

[0012] The biological information measuring system according to an embodiment is configured to calculate a second calculation value based on an estimated value obtained from a plurality of calculation values derived from hydrogen, the plurality of calculation values derived from hydrogen including a first calculation value derived from hydrogen calculated based on a detection result of a first gas sensor, and thus can reduce the influence of measurement deviation of a hydrogen sensor (corresponding to the first gas sensor) and can calculate a hydrogen amount closer to a true value. Thus, the biological information measuring system according to an embodiment can suppress a case where a malodor gas detection amount becomes zero or less due to hydrogen even if the hydrogen detection amount fluctuates due to measurement deviation of the hydrogen sensor in a configuration in which a malodor gas amount is calculated in a manner that removes the influence of hydrogen from a detection value of a malodor gas sensor based on a hydrogen amount detected by the hydrogen sensor, for example, and can calculate a health state such as an intestinal environment state with high accuracy. Thus, the biological information measuring system can appropriately perform processing based on gas measurement.

[0013] The inventors have continued to conduct research on the determination of physical conditions using defecation gas information as described in Patent Literature 1 and Patent Literature 2, and have found that, in the defecation gas (farts) discharged at the time of defecation, the ratio of healthy gases composed of hydrogen, carbon dioxide, acetic acid, methane, ethanol, water, and the like to odor (malodor) gases composed of ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, indole, skatole, and the like changes over time, and that the change in the intestinal environment over time can be indirectly grasped. However, in a case where the amount of hydrogen detected from the defecation gas is large or the amount of odor gas is small, since the determination of the hydrogen sensor is biased, when only the odor gas detected value is separated from the influence of the hydrogen detected by the hydrogen sensor as in Patent Literature 2, if there is a positive bias in the detection amount of the hydrogen sensor, the detection value of the odor gas becomes zero or a negative value, and thus there is a problem in that the intestinal environment cannot be correctly estimated. Therefore, the biological information measurement system according to the aspect of the embodiments is able to suppress the serious miscalculation of the amount of odor gas caused by the fluctuation in the amount of hydrogen due to the determination bias of the hydrogen sensor.

[0014] The biological information measurement system according to the aspect of the embodiments is characterized in that the biological information measurement system includes: a suction device that suctions gas in the bowl; and a sealing mechanism that leaves the gas suctioned by the suction device in a sealed space, and the second calculation value is a statistical value of the plurality of calculation values obtained by measuring the gas in the sealed space by the first gas sensor a plurality of times.

[0015] The biological information measurement system according to the aspect of the embodiments is able to acquire information of the same gas a plurality of times on the same sensor by leaving the one-time defecation gas in the sealed space by the sealing mechanism and acquiring from the gas in the sealed space a plurality of times. Thus, the biological information measurement system according to the aspect of the embodiments is able to detect the amount of hydrogen with high precision without being affected by the determination bias of the hydrogen sensor itself. Therefore, the biological information measurement system is able to appropriately perform processing based on gas measurement.

[0016] The biological information measurement system according to the aspect of the embodiments is characterized in that the sealing mechanism includes a storage portion that stores the gas suctioned by the suction device, and the second calculation value is a statistical value of the plurality of calculation values obtained by measuring the gas in the storage portion a plurality of times.

[0017] The biological information measurement system according to the aspect of the embodiments is able to stabilize the sensor output with a simple structure by causing the gas left in the flow path to continuously come into contact with the sensor. Therefore, the biological information measurement system is able to appropriately perform processing based on gas measurement.

[0018] In the biological information measuring system according to the one way of the embodiments, the sealing mechanism has a flow path that can be switched to a closed flow path by the switching mechanism, and the second calculation value is a statistical value of the plurality of calculation values obtained by measuring the gas in the flow path a plurality of times.

[0019] The biological information measuring system according to the one way of the embodiments can acquire a plurality of information by repeatedly measuring the gas in the flow path using the first gas sensor even without providing the storage section. Thus, the biological information measuring system can appropriately perform the process based on the gas measurement.

[0020] The biological information measuring system according to the one way of the embodiments includes a third gas sensor having a higher sensitivity to hydrogen and a lower sensitivity to the odor gas than the second gas sensor, and the plurality of calculation values include a fourth calculation value corresponding to hydrogen based on the first calculation value and a detection result of the third gas sensor.

[0021] The biological information measuring system according to the one way of the embodiments can perform an averaging process on the gas information at the same time even in one-time defecation gas by using information of a plurality of sensors, and thus can more accurately detect the hydrogen detection amount. Thus, the biological information measuring system can appropriately perform the process based on the gas measurement.

[0022] In the biological information measuring system according to the one way of the embodiments, the third gas sensor is a gas sensor that reacts with methane gas, and the control device is configured to use the third gas sensor as a sensor for detecting the methane gas when it is determined that the defecation gas of the user contains the methane gas, and to use the third gas sensor as a sensor for detecting the hydrogen gas when it is determined that the defecation gas of the user does not contain the methane gas.

[0023] The biological information measuring system according to the one way of the embodiments can use a sensor that can be used for another purpose without providing a plurality of identical sensors, and thus can improve the use convenience. Thus, the biological information measuring system can appropriately perform the process based on the gas measurement.

[0024] A biological information measuring system according to an embodiment is characterized by measuring biological information of a user of a toilet based on excrement gas discharged into a bowl of a toilet installed in the toilet, and by including: a gas detecting device including a first gas sensor that reacts with hydrogen contained in gas, and a second gas sensor that reacts with a sulfur component-containing odor gas and hydrogen; and a control device that controls the gas detecting device, the control device configured to calculate a second calculation value of the second gas sensor corresponding to hydrogen based on a plurality of calculation values corresponding to hydrogen contained in gas, calculate a third calculation value corresponding to the odor gas based on a detection result of the second gas sensor and the second calculation value, and calculate a score based on the third calculation value, and the biological information measuring system estimates a health state of the user or information related to the health state using the score calculated based on the third calculation value, and calculates the score based on a ratio of a value based on a first calculation value corresponding to hydrogen obtained from a detection result of the first gas sensor and a value based on the third calculation value corresponding to the same time as detection of excretion by the user.

[0025] A biological information measuring system according to an embodiment is characterized by measuring biological information of a user of a toilet based on excrement gas discharged into a bowl of a toilet installed in the toilet, and by including: a gas detecting device including a first gas sensor that reacts with hydrogen contained in gas, and a second gas sensor that reacts with a sulfur component-containing odor gas and hydrogen; and a control device that controls the gas detecting device, the control device configured to calculate a second calculation value of the second gas sensor corresponding to hydrogen based on a plurality of calculation values corresponding to hydrogen contained in gas, calculate a third calculation value corresponding to the odor gas based on a detection result of the second gas sensor and the second calculation value, and calculate a score based on the third calculation value, and the biological information measuring system estimates a health state of the user or information related to the health state using the score calculated based on the third calculation value, and calculates the score based on a ratio of a value based on a first calculation value corresponding to hydrogen obtained from a detection result of the first gas sensor and a value based on the third calculation value corresponding to the same time as detection of excretion by the user.

[0026] A biological information measuring system according to an embodiment is characterized by measuring biological information of a user of a toilet based on excrement gas discharged into a bowl of a toilet installed in the toilet, and by including: a gas detecting device including a first gas sensor that reacts with hydrogen contained in gas, and a second gas sensor that reacts with a sulfur component-containing odor gas and hydrogen; and a control device that controls the gas detecting device, the control device configured to calculate a second calculation value of the second gas sensor corresponding to hydrogen based on a plurality of calculation values corresponding to hydrogen contained in gas, calculate a third calculation value corresponding to the odor gas based on a detection result of the second gas sensor and the second calculation value, and calculate a score based on the third calculation value, and the biological information measuring system estimates a health state of the user or information related to the health state using the score calculated based on the third calculation value, and calculates the score based on a ratio of a value based on a first calculation value corresponding to hydrogen obtained from a detection result of the first gas sensor and a value based on the third calculation value corresponding to the same time as detection of excretion by the user.

[0027] According to the toilet device of one embodiment, since the second calculation value is obtained on the basis of an estimated value obtained from a plurality of calculation values derived from hydrogen, the plurality of calculation values derived from hydrogen include a first calculation value derived from hydrogen obtained on the basis of a detection result of the first gas sensor, it is possible to reduce the influence of measurement deviation of the hydrogen sensor and to calculate a hydrogen amount closer to a true value. Thus, according to the toilet device of one embodiment, in a structure in which the amount of odor gas is calculated in such a manner that the influence of hydrogen is removed from a detection value of the odor gas sensor on the basis of the amount of hydrogen detected by the hydrogen sensor, even when the amount of hydrogen detection varies due to measurement deviation of the hydrogen sensor, it is possible to suppress the amount of odor gas detection from becoming zero or less due to hydrogen, for example, and to calculate a health state such as an intestinal environment state with high accuracy. Thus, the toilet device can appropriately perform processing based on gas measurement.

[0028] The toilet device of one embodiment includes a gas detection device including a first gas sensor that reacts with hydrogen included in a gas and a second gas sensor that reacts with odor gas including a sulfur component and hydrogen, and a control device that controls the gas detection device. The control device is configured to calculate a second calculation value of the second gas sensor corresponding to hydrogen on the basis of a plurality of calculation values corresponding to hydrogen included in a gas, calculate a third calculation value corresponding to the odor gas on the basis of a detection result of the second gas sensor and the second calculation value, and calculate a score based on the third calculation value. The toilet device estimates a health state of a user or information related to the health state of the user using the score calculated on the basis of the third calculation value. The score is calculated on the basis of a ratio of a value obtained on the basis of a first calculation value corresponding to hydrogen obtained from a detection result of the first gas sensor to a value obtained on the basis of the third calculation value, which corresponds to detection at the same time as the user defecates.

[0029] According to the toilet device of one embodiment, by repeatedly obtaining and averaging a set of health result information of hydrogen and odor gas obtained at the same time, a final intestinal health state is calculated, so that it is possible to reduce the influence of measurement deviation of the hydrogen sensor itself and to calculate a health state such as an intestinal environment state with high accuracy. Thus, the toilet device can appropriately perform processing based on gas measurement.

[0030] Effects of the invention

[0031] According to one embodiment, it is possible to appropriately perform processing based on gas measurement. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a perspective view showing an example of a structure of a toilet according to an embodiment;

[0033] Figure 2 is a plan view showing an example of a structure of a measuring device according to an embodiment;

[0034] Figure 3 is a diagram showing an example of an overall outline of a biological information measuring system according to an embodiment;

[0035] Figure 4 is a diagram showing an example of a relationship between an action of a user and an action of a system;

[0036] Figure 5 is a block diagram showing an example of a structure of a toilet device according to an embodiment;

[0037] Figure 6 is a block diagram showing an example of a structure of a control device according to an embodiment;

[0038] Figure 7 is a diagram showing an example of a structure of a gas sensor;

[0039] Figure 8 is a diagram showing an example of a relationship between a value obtained based on measurement of a gas sensor and a gas amount;

[0040] Figure 9 is a diagram showing an example of a gas sensor and a reaction component;

[0041] Figure 10 is a diagram showing an example of a calculation process of a malodorous gas amount;

[0042] Figure 11 is a diagram showing an outline of a calculation of a malodorous gas amount;

[0043] Figure 12 is a diagram showing an example of an influence of a measurement deviation of a gas sensor on calculation;

[0044] Figure 13 is a diagram showing an example of an influence of a measurement deviation of a gas sensor on calculation;

[0045] Figure 14 is a diagram showing a first measurement example of a gas sensor;

[0046] Figure 15 is a diagram showing a second measurement example of a gas sensor;

[0047] Figure 16 is a diagram showing a third measurement example of a gas sensor;

[0048] Figure 17 is a diagram showing a fourth measurement example of the gas sensor;

[0049] Figure 18 is a diagram showing a fifth measurement example and a sixth measurement example of the gas sensor;

[0050] Figure 19 is a diagram showing a seventh measurement example of the gas sensor;

[0051] Figure 20 is a diagram showing an example of the structure and control corresponding to the third measurement example;

[0052] Figure 21 is a diagram showing an example of the structure and control corresponding to the fourth measurement example;

[0053] Figure 22 is a diagram showing an example of the structure and control corresponding to the fourth measurement example;

[0054] Figure 23 is a diagram showing an example of the structure and control corresponding to the fourth measurement example;

[0055] Figure 24 is a diagram showing a first change of information by the biological information measurement system;

[0056] Figure 25 is a diagram showing an example of display of information after the change by the biological information measurement system;

[0057] Figure 26 is a diagram showing a score correction example by the biological information measurement system;

[0058] Figure 27 is a diagram showing a second change of information by the biological information measurement system;

[0059] Figure 28 is a diagram showing a third change of information by the biological information measurement system. DETAILED DESCRIPTION

[0060] Hereinafter, embodiments of the biological information measurement system and the toilet device according to the present disclosure will be described in detail with reference to the accompanying drawings. Note that the present disclosure is not limited to the embodiments described below. In the present disclosure, a gas derived from intestinal fermentation and indicating a high degree of health is referred to as a "health-related gas", and a gas derived from intestinal putrefaction and indicating a low degree of health is referred to as a "malodorous gas".

[0061] For example, the health-related gas is a gas generated by fermentation by a beneficial bacterium in the intestines. For example, the health-related gas can also be a gas derived from fermentation in the intestines and the more healthy the intestines are, the more the gas. As a specific example, examples of the health-related gas include hydrogen, carbon dioxide, acetic acid, methane, ethanol, and water.

[0062] Further, for example, the odor gas is a gas generated by fermentation by a harmful bacterium in the intestines. For example, the odor gas can be a gas containing a sulfur component in a defecation gas. As an example, the odor gas includes ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, indole, and skatole. Note that the defecation gas referred to here means a gas discharged from the intestines, and for example, the defecation gas includes a gas discharged at the same time as defecation and a gas not discharged at the same time as defecation.

[0063] <1. Embodiment>

[0064] Hereinafter, after a summary of the collection site of the gas, i.e., the toilet R and the biological information measurement system 1 is described, various processes performed by the biological information measurement system 1 and a structure for performing the processes are described.

[0065] <1-1. Structure Example of Toilet>

[0066] First, with reference to Figure 1 , the structure of the biological information measurement system of the embodiment is described. Figure 1 is a perspective view showing an example of the structure of the biological information measurement system of the embodiment. Note that in Figure 1 , in order to illustrate the structure of the measurement device 4, the toilet seat 5 and the toilet cover 9 are illustrated in a manner of being seen through.

[0067] As shown in Figure 1 , in the toilet R, the toilet bowl 7 is provided on the floor F. Note that hereinafter, the orientation facing the space in the toilet R from the floor F is sometimes described as "up". The toilet R is configured with the constituent elements of the biological information measurement system 1, such as the measurement device 4 including the suction device 10 and the gas detection device 20, and performs gas detection.

[0068] The toilet bowl 7 is a toilet bowl, and the toilet bowl 7 is formed with a basin portion 8. The basin portion 8 is a shape recessed downward, and is a portion that receives excrement of a user. Note that the toilet bowl 7 is not limited to the illustrated floor type, and can be any form as long as it can be applied to the biological information measurement system 1, and can be a wall-hung type or the like. An inner edge portion is provided to the toilet bowl 7 in a manner of crossing the entire circumference of the end portion of the opening facing the basin portion 8. For example, in the toilet R, for example, a washing water tank for storing washing water can be provided in the vicinity of the toilet bowl 7, and can be a so-called tankless toilet bowl in which the washing water tank is not provided.

[0069] For example, if the user operates a cleaning operation section (not shown) provided in the toilet room R, cleaning water is supplied to the bowl portion 8 of the toilet 7, and toilet cleaning is performed. The cleaning operation section can be an operation lever and a touch operation for toilet cleaning objects displayed on the operation device 30. Note that the cleaning operation section is not limited to the type in which the user manually performs toilet cleaning by an operation lever, and can be the type in which toilet cleaning is performed by human detection by a sensor such as a seat sensor that detects the user.

[0070] The toilet seat device 2 is provided on the upper portion of the toilet 7, and includes a main body portion 3, a measurement device 4, a toilet seat 5, and a cleaning nozzle 6. The toilet seat device 2 is placed on the upper portion of the toilet 7 in which the bowl portion 8 that receives excrement is formed. The toilet seat device 2 is placed on the upper portion of the toilet 7 in such a manner that the cleaning nozzle 6 enters the bowl portion 8 before the cleaning water is sprayed. Note that the toilet seat device 2 can be detachably attached to the toilet 7, or can be integrally attached to the toilet 7.

[0071] The toilet seat device 2 detects biological information of the user of the toilet room R on the basis of the excrement gas discharged into the bowl portion 8 of the toilet 7 provided in the toilet room R, by the structure of the measurement device 4 and the like. The measurement device 4 has a suction device 10 and a gas detection device 20. Note that the measurement device 4 is described in detail in Figure 2 .

[0072] As shown in Figure 1 , the toilet seat 5 is formed in a ring shape, and is disposed at a position overlapping the opening of the toilet 7 along the end portion (inner edge portion) of the bowl portion 8. The toilet seat 5 is used by the user to sit on. The toilet seat 5 functions as a seat portion that supports the buttocks of the user who sits on. In addition, the toilet seat device 2 can have a toilet lid 9 attached thereto as needed, or can not have the toilet lid 9.

[0073] The cleaning nozzle 6 is a nozzle for discharging cleaning water. The cleaning nozzle 6 is configured to be able to advance and retreat with respect to the housing of the main body portion 3 by driving of a drive source (not shown) such as an electric motor (nozzle motor 61 and the like) in Figure 5 . In addition, the cleaning nozzle 6 is connected to a water source such as a water pipe (not shown). Furthermore, as shown in Figure 1 , when the cleaning nozzle 6 is located at a position in which the cleaning nozzle 6 enters the housing of the main body portion 3 (also referred to as an "entering position"), water from the water source is sprayed toward the user's body, and the local portion is cleaned.

[0074] Figure 1The state in which the washing nozzle 6 is located at the entry position is indicated by "W". Note that the washing nozzle 6 can also be used for washing within the toilet 7 (the bowl 8, etc.). The washing nozzle 6 can also be used for switching between a local washing mode in which the user is locally washed, and a toilet washing mode in which water is sprayed into the toilet 7. For example, the washing nozzle 6 can be used to switch between the local washing mode and the toilet washing mode in accordance with the control of the toilet seat device 2.

[0075] The operation device 30 is provided in the bathroom R. The operation device 30 is provided at a position operable by the user. The operation device 30 is provided at a position operable by the user when seated on the toilet seat 5. In the present embodiment, the operation device 30 is provided on the wall W on the left as viewed from the user seated on the toilet seat 5. Note that the operation device 30 can be provided in various ways as long as it is operable by the user seated on the toilet seat 5, and is not limited to the wall. For example, the operation device 30 can be provided integrally with the toilet seat device 2. Figure 1

[0076] The operation device 30 is communicably connected to the toilet seat device 2 via a prescribed network, by wire or wirelessly. For example, any connection method can be used as long as the toilet seat device 2 and the operation device 30 can transmit and receive information, and can be communicably connected by wire or wirelessly.

[0077] The operation device 30 receives various operations from the user via a display surface (e.g., the display screen 31), for example, by a touch panel function. In addition, the operation device 30 can also have a switch or a button, and receives various operations by the switch or the button, etc. The display screen 31 is a display screen of a tablet terminal or the like realized by a liquid crystal display, an organic EL (Electro-Luminescence) display, etc., and is a display device for displaying various information. That is, the operation device 30 receives the input of the user by the display screen 31, and also outputs to the user. The display screen 31 is a display device that displays various information.

[0078] The operation device 30 receives the operation of the user for controlling various functions provided in the bathroom R. The operation device 30 receives the operation of the user for controlling the toilet seat device 2 to perform local washing. For example, the operation device 30 can have a switch or a button, etc., that receives the operation of the user described above, and performs various processes in accordance with the contact of the user to the switch or the button, etc. Note that the above is merely an example, and the operation device 30 can receive the operation of the user for performing various processes.

[0079] ​The biological information measurement system 1 measures biological information of a user of the toilet R based on the excrement gas discharged into the bowl portion 8 of the toilet bowl 7 provided in the toilet R by various structures and processes described later. The biological information measurement system 1 performs control for appropriately detecting the excrement gas. The biological information measurement system 1 can also provide information to a user terminal such as a smartphone of the user (corresponding to the display mechanism 300 in Figure 3

[0080] <1-2. Structure of measurement device>

[0081] Next, the structure of the measurement device 4 will be described with reference to Figure 2 Figure 2 is a plan view showing an example of the structure of the measurement device according to the embodiment. In the example shown in Figure 2 , a case where the measurement device 4 is disposed in the main body portion 3 will be described. In Figure 2 , the structure of the measurement device 4 is illustrated after the housing (cover) of the main body portion 3 at the position where the measurement device 4 is disposed is removed.

[0082] The measurement device 4 has a suction device 10 that suctions gas in the bowl portion 8 of the toilet bowl 7 and a gas detection device 20 that detects a component of the gas suctioned.

[0083] The suction device 10 has a fan for suctioning gas in the bowl portion 8 of the toilet bowl 7. The suction device 10 is connected to a duct 11 that communicates with the bowl portion 8 of the toilet bowl 7. The duct 11 functions as a flow path through which gas in the bowl portion 8 flows into the measurement device 4. The suction device 10 suctions gas in the bowl portion 8 as a flow path by driving the fan. For example, the suction device 10 performs a process related to suctioning in accordance with control by the control device 100. Note that in a case where the suction device 10 is shared with a deodorizing device or the like assembled in the toilet seat device 2, the suction device 10 can also be controlled by a control mechanism (device) different from the control device 100.

[0084] The gas detection device 20 performs a process related to detection of a component of the gas suctioned by the suction device 10. In Figure 2 , the gas detection device 20 is disposed behind the suction device 10 when viewed from the bowl portion 8 side. Note that Figure 2 ​​This is merely an example; the gas detection device 20 can be positioned anywhere as long as the gas sucked by the suction device 10 can be introduced. The gas detection device 20 is connected to a pipe 12 that communicates with the exterior of the main body 3. The pipe 12 serves as a flow path for the gas within the gas detection device 20 to flow out of the measuring device 4. For example, in response to the actuation of the suction device 10, the gas within the gas detection device 20 is discharged to the exterior of the measuring device 4 using the pipe 12 as a flow path.

[0085] For example, the gas detection device 20 executes a process related to gas detection under the control of the control device 100. The gas detection device 20 includes a gas sensor 40 that reacts with gas contained in the gas. The gas sensor 40 detects a specific component of the gas.

[0086] For example, a semiconductor gas sensor is used as the gas sensor 40. The gas sensor 40 may be a hydrogen sensor capable of detecting hydrogen. The gas sensor 40 may be an odor gas sensor capable of detecting odorous gases. The gas sensor 40 may be a methane gas sensor capable of detecting methane. For example, the gas detection device 20 includes multiple gas sensors 40. The multiple gas sensors 40 may include a gas sensor 40a serving as a hydrogen sensor, a gas sensor 40b serving as an odor gas sensor, and a gas sensor 40c serving as a methane gas sensor. When not specifically distinguishing between the gas sensors 40a to 40c, they are collectively described as the gas sensor 40.

[0087] It should be noted that the above is only an example, and the gas sensor is not limited to the semiconductor gas sensor 40. Any type of sensor may be used. For example, the gas detection device 20 may include one or more gas sensors such as an infrared carbon dioxide concentration meter or other CO2 sensor.

[0088] <1-3. Example of an overall overview of a biometric measurement system>

[0089] Next, refer to Figure 3 , an example of the overall outline of the biological information measurement system 1 is described. Figure 3 This is a diagram showing an example of the overall outline of the biological information measurement system according to the embodiment. Figure 1 and Figure 2 The description of the same contents as those in the above description will be omitted as appropriate.

[0090] exist Figure 3 In the embodiment, the biological information measurement system 1 includes a suction device 10, a gas detection device 20, a control device 100, and an estimation mechanism 200. Figure 1 and Figure 2The toilet device 2 is shown as having the suction device 10, the gas detection device 20, and the control device 100, but is not limited thereto. For example, the control device 100 can be provided separately from the suction device 10 and the gas detection device 20, and can communicate with the suction device 10 and the gas detection device 20 by wire or wirelessly, thereby controlling the suction device 10 and the gas detection device 20. Further, as described above, the suction device 10 can be controlled by a control mechanism different from the control device 100.

[0091] The estimation mechanism 200 is a computer (information processing device) that has a function of performing estimation processing based on information acquired by detection by the gas detection device 20. For example, the estimation mechanism 200 can be a cloud server (server device) located outside the toilet room R. In this case, the estimation mechanism 200 is communicably connected to devices (also referred to as "in-toilet-room devices") such as the toilet device 2 or the gas detection device 20 located in the toilet room R via a predetermined network such as the Internet by wire or wirelessly.

[0092] Further, the estimation mechanism 200 is communicably connected to devices such as the display mechanism 300 that display information to the user via a predetermined network such as the Internet by wire or wirelessly. Note that the estimation mechanism 200 can be connected to the in-toilet-room devices and the devices such as the display mechanism 300 in an arbitrary manner as long as the estimation mechanism 200 can transmit and receive information, and can be communicably connected by wire or wirelessly. Note that the estimation mechanism 200 can also communicate with the control device 100.

[0093] The estimation mechanism 200 uses information received from the in-toilet-room devices to perform estimation processing related to the health state of the user. Note that data acquired before this time can be stored in the estimation mechanism 200 or in the display mechanism 300. The estimation mechanism 200 generates information (also referred to as "health estimation information") for estimating the health state of the user or information associated therewith based on the amount of health-related gas and the amount of odor gas in the user's excrement gas. The estimation mechanism 200 calculates a score based on the ratio of the amount of health-related gas to the amount of odor gas in the user's excrement gas as the health estimation information of the user. For example, the estimation mechanism 200 can use any information such as a ratio, a single odor, or the like. Note that the above is merely an example, and the estimation mechanism 200 can generate any information as the health estimation information of the user. For example, the estimation mechanism 200 can generate the information shown below as the health estimation information of the user, or can generate the health estimation information based on the processing result shown below.

[0094] For example, the estimation mechanism 200 can estimate information related to the state of the user's intestines from the measurement values. For example, the estimation mechanism 200 can estimate information related to the state of bacteria. In this case, for example, the estimation mechanism 200 can estimate the occupancy rate of certain bacteria, the number of beneficial bacteria, harmful bacteria, and the ratio, and the like. Further, for example, the estimation mechanism 200 can estimate the state of metabolites. In this case, for example, the estimation mechanism 200 can estimate the number of beneficial substances, harmful substances, and the ratio thereof, and the like. For example, the estimation mechanism 200 can estimate the state of the pH in the intestines. Further, the estimation mechanism 200 can convert the above such information into a score or information for evaluation of good and bad. For example, the estimation mechanism 200 can generate the above such information as health estimation information of the user.

[0095] Further, for example, the estimation mechanism 200 can generate information related to the state of the user's health from the measurement values. In this case, for example, the estimation mechanism 200 can generate a score related to the user's intestinal environment and information for evaluation of good and bad. For example, the estimation mechanism 200 can generate information related to the user's intestinal environment. For example, the estimation mechanism 200 can generate information related to the user's immunity. For example, the estimation mechanism 200 can generate information related to the user's degree of leanness. For example, the estimation mechanism 200 can generate information related to the cholesterol index. For example, the estimation mechanism 200 can generate information related to the metabolic score. For example, the estimation mechanism 200 can generate the above such information as health estimation information of the user. Note that the above examples are merely examples, and the estimation mechanism 200 is not limited to the above cases, and can generate various information associated with the state of the user's health.

[0096] The estimation mechanism 200 estimates that the more the healthy gas than the odor gas in the user's excrement gas, the healthier the user is, on the basis of the calculated ratio. The estimation mechanism 200 estimates that the more the odor gas than the healthy gas in the user's excrement gas, the less healthy the user is, on the basis of the calculated ratio. Note that the above is merely an example, and the estimation mechanism 200 can make any estimation on the basis of the calculated score. The estimation mechanism 200 transmits information to be provided to the user to the display mechanism 300. The estimation mechanism 200 transmits the score calculated as the user's health estimation information to the display mechanism 300 used by the user.

[0097] The estimation mechanism 200 is not limited to a cloud server (server device) and can be any device. That is, as long as the desired processing can be achieved, the device structure and configuration of the estimation mechanism 200 can be any method. For example, the estimation mechanism 200 can be a portable terminal (device) such as a laptop computer that can be carried by the administrator of the biometric information measurement system 1. In addition, the estimation mechanism 200 can be configured in the toilet R. For example, the estimation mechanism 200 can be a structure configured in the toilet R. For example, the toilet seat device 2 can have the function of the estimation mechanism 200. In this case, the control device 100 can have the function of the estimation mechanism 200.

[0098] The display unit 300 is a display device (computer) that displays information provided to the user. For example, the display unit 300 may be a user terminal device (portable terminal device) held by the user. In this case, the display unit 300 may be implemented by, for example, a smartphone, mobile phone, PDA (Personal Digital Assistant), tablet terminal, notebook PC (Personal Computer), etc. For example, the display unit 300 is connected to the devices included in the biometric measurement system 1, such as the estimation unit 200, via a predetermined network, either by wired or wireless communication.

[0099] The display unit 300 exchanges information with the estimation unit 200. The display unit 300 receives information provided to the user from the estimation unit 200. The display unit 300 receives a score calculated as estimated health information of the user from the estimation unit 200. The display unit 300 displays information including the score calculated as estimated health information of the user.

[0100] exist Figure 3 In the display unit 300, the score calculated as the user's health estimation information is displayed as the user's intestinal environment score. For example, the display unit 300 displays the user's intestinal environment score in a time series according to the date and time of each defecation. The display unit 300 displays the target score, information showing the time series change of the user's intestinal environment score, and text information showing the evaluation. For example, the display unit 300 can request information from the estimation unit 200 and display the information obtained from the estimation unit 200.

[0101] Note that the above is merely an example, and the biological information measuring system 1 can adopt any device structure as long as the desired processing is achieved. In the biological information measuring system 1, the toilet device 2 can have a structure other than the display mechanism 300. For example, the toilet device 2 can have the measuring device 4, the control device 100, and the estimation mechanism 200. Further, for example, the display mechanism 300 can be included in the biological information measuring system 1 or can not be included in the biological information measuring system 1. For example, in a case where the display mechanism 300 is the operation device 30 of the toilet R, the display mechanism 300 can be included in the biological information measuring system 1. In this case, the operation device 30 has a function of displaying the health estimation information of the user.

[0102] <1-4. User's Action and System's Action>

[0103] Next, an example of the relationship between the action (action) of the user who uses the biological information measuring system 1 and the action (action) of the biological information measuring system 1 will be described using Figure 4 Figure 4 is a diagram that shows an example of the relationship between the user's action and the system's action.

[0104] First, the relationship between the action of the user who uses the toilet R and the action of the biological information measuring system 1 will be described with reference to Figure 4 The action flow of the user who uses the toilet R will be described. The user of the toilet R performs the action of the first stage to the seventh stage shown in Figure 4

[0105] First, the user performs the action of entering the toilet R, as the action of the first stage. The user who enters the toilet R performs the action of undressing in the toilet R, as the action of the second stage. The user who undresses performs the action of sitting on the toilet 5 of the toilet R, as the action of the third stage. The user who sits on the toilet 5 performs the action of defecating into the basin 8 of the toilet 7, as the action of the fourth stage.

[0106] The user who defecates performs the action of cleaning the local part after defecation, such as using the toilet device 2, as the action of the fifth stage. The user who completes the action after defecation performs the action of standing up and getting off the toilet 5, as the action of the sixth stage. The user who gets off performs the action of cleaning the toilet 7, leaving the toilet R, and confirming the analysis result of the biological information measuring system 1 on the defecation gas, as the action of the seventh stage.

[0107] Next, the action flow of the biological information measuring system 1 corresponding to the above user's action will be described. The biological information measuring system 1 starts to suck the gas before the user who enters the toilet R starts to defecate. The biological information measuring system 1 performs the action of the first stage to the seventh stage shown in Figure 4 ​​In the embodiment, the biological information measuring system 1 starts to suction gas between the first stage and the third stage. Thereby, the biological information measuring system 1 completes the measurement preparation before the user defecates. For example, the biological information measuring system 1 suctions the gas (air) in the basin portion 8 before the user defecates, thereby suctioning the gas as a reference (reference line) for comparison with the gas after the user defecates. For example, the biological information measuring system 1 calculates the increment from the reference line, thereby estimating (calculating) the amount of the component contained in the defecation gas.

[0108] The biological information measuring system 1 performs the measurement of the defecation gas during the period from when the user sits down to when the user gets up after defecating. In the embodiment, the biological information measuring system 1 performs the measurement of the defecation gas before the fourth stage to the fifth stage. Thereby, the biological information measuring system 1 suctions the gas and acquires data at any time during the period when the user sits down. Figure 4

[0109] The biological information measuring system 1 performs the analysis of the defecation gas after completing the measurement of the defecation gas. In the embodiment, the biological information measuring system 1 performs the analysis of the defecation gas between the sixth stage and the seventh stage. Thereby, the biological information measuring system 1 analyzes based on the information of the defecation gas (result) acquired for the user after the user finishes defecating, and calculates the score. The biological information measuring system 1 analyzes the defecation gas of the user, and provides the analysis result to the user. Note that the analysis and the provision of the result are not limited to the sixth stage to the seventh stage, and can be performed at any time as long as the information is in a state where the provision is possible. For example, the biological information measuring system 1 can perform the analysis and the provision of various information at any time during the measurement, immediately after the measurement ends, and the like. Figure 4

[0110] <1-5. Function structure of toilet seat device>

[0111] Next, the function structure of the toilet seat device 2 will be described with reference to Figure 5 Figure 5 is a block diagram showing an example of the structure of the toilet seat device according to the embodiment. As shown in Figure 5 , the toilet seat device 2 includes a human body sensing sensor 32, a seating sensor 33, an illuminance sensor 34, a control device 100, a nozzle motor 61, and a washing nozzle 6.

[0112] Note that the structure of the toilet seat device 2 shown in Figure 5 is only an example, and the toilet seat device 2 can have only the toilet seat 5 in a case where each structure is provided separately. Like this, Figure 5 ​​​The illustrated structure of the toilet seat device 2 is merely an example, and the toilet seat device 2 can adopt any structure. The human body sensing sensor 32, the seating sensor 33, the illuminance sensor 34, and the like can be disposed at any position as long as the desired sensing can be achieved. Furthermore, the toilet seat device 2 can have at least one of the human body sensing sensor 32, the seating sensor 33, and the illuminance sensor 34 as long as the seating of the user to the toilet seat 5 can be detected. The toilet seat device 2 transmits and receives information between an information processing device such as the estimation mechanism 200 via a prescribed network (the Internet or the like) in a wired or wireless manner through the communication section 110 of the control device 100 or the like. Figure 6

[0113] The human body sensing sensor 32 has a function of detecting a human body. For example, the human body sensing sensor 32 functions as a seating detection mechanism that detects the seating of the user to the toilet seat 5. For example, the human body sensing sensor 32 is implemented by a pyroelectric sensor using an infrared signal or the like. For example, the human body sensing sensor 32 can be implemented by a μ (micro) wave sensor or the like. For example, the human body sensing sensor 32 is an infrared light emitting and receiving type distance measuring sensor, and can detect a human body existing in the vicinity of the toilet seat 5 before the person (the user) is about to seat on the toilet seat 5 or the user who has seated on the toilet seat 5.

[0114] The human body sensing sensor 32 also functions as a dismounting detection sensor that detects the dismounting of the user from the toilet seat 5. The human body sensing sensor 32 detects the seating state of the user to the toilet seat 5. The human body sensing sensor 32 outputs a detection signal to the control device 100. Note that the above is merely an example, and the human body sensing sensor 32 is not limited to the above, and can detect a human body by various means. For example, the human body sensing sensor 32 detects a person (such as the user or the like) approaching the toilet seat 5.

[0115] The seating sensor 33 has a function of detecting the seating of a person to the toilet seat device 2. For example, the seating sensor 33 functions as a seating detection mechanism that detects the seating of the user to the toilet seat 5. For example, the seating sensor 33 is implemented by a load sensor or the like. The seating sensor 33 detects the case where the user seats on the toilet seat 5. The seating sensor 33 can detect the seating of the user to the toilet seat 5.

[0116] The seating sensor 33 also functions as a dismounting detection sensor that detects the dismounting of the user from the toilet seat 5. The seating sensor 33 detects the seating state of the user to the toilet seat 5. Note that the above is merely an example, and the seating sensor 33 is not limited to the above, and can detect the seating of a person to the toilet seat device 2 by various means. The seating sensor 33 outputs a seating detection signal to the control device 100.

[0117] ​The illuminance sensor 34 is a sensor that detects illuminance. For example, the illuminance sensor 34 is used as a seating detection mechanism that detects seating of a user on the toilet seat 5. For example, the illuminance sensor 34 is disposed at a position facing the bowl 8, and detects illuminance inside the bowl 8.

[0118] The illuminance sensor 34 also functions as a dismounting detection sensor that detects dismounting of a user from the toilet seat 5. The illuminance sensor 34 detects a seating state of a user on the toilet seat 5. Note that the above is merely an example, and the illuminance sensor 34 can be disposed at any position as long as it can detect seating of a user on the toilet seat 5 by illuminance detection.

[0119] The control device 100 controls various structures and processes. The control device 100 is a computer (information processing device) that performs various information processing related to measurement of a gas and the like. The control device 100 can be any device as long as it has a structure necessary for control, and can be, for example, a microcomputer or the like.

[0120] The control device 100 controls various structures for measuring a gas. For example, the control device 100 controls various valves such as a switching valve, a check valve, and the like. For example, the control device 100 controls a flow path through which a gas flows by controlling a switching valve. For example, the control device 100 switches a flow path through which a gas flows by switching a switching valve. The control device 100 controls the gas detection device 20.

[0121] The control device 100 controls the gas detection device 20 to start or stop measurement of a defecation gas in accordance with a use of the toilet room R by a user. For example, the control device 100 instructs the gas detection device 20 to start measurement of a defecation gas in accordance with seating of a user on the toilet seat 5, and instructs the gas detection device 20 to stop measurement of a defecation gas in accordance with dismounting of a user from the toilet seat 5.

[0122] The control device 100 transmits control information to the gas detection device 20 by wire. Note that the control device 100 can transmit control information to the gas detection device 20 by wireless. For example, in a case where the control device 100 is configured as a device different from the toilet device 2, control information of the gas detection device 20 can be transmitted to the toilet device 2 by wireless. In this case, a control device of the toilet device 2 can control the gas detection device 20 on the basis of the received control information.

[0123] The control device 100 can control the suction device 10. For example, the control device 100 controls the suction device 10 to start or stop suction. The control device 100 transmits control information to the suction device 10 by wire. Note that the control device 100 can transmit control information to the suction device 10 by wireless. For example, in a case where the control device 100 is configured as a device different from the toilet device 2, control information of the suction device 10 can be transmitted to the toilet device 2 by wireless. In this case, the control device of the toilet device 2 can control the suction device 10 based on the received control information.

[0124] Further, in addition to the above, the control device 100 controls various structures of the biological information measuring system 1. The control device 100 controls the nozzle motor 61 and the like. The control device 100 controls the nozzle motor 61 and the like based on a signal transmitted from the operation device 30.

[0125] The control device 100 controls the nozzle motor 61 based on a signal of a control instruction related to local cleaning transmitted from the operation device 30. The control device 100 controls the nozzle motor 61 in order to advance and retreat the cleaning nozzle 6. Note that the control device 100 is not limited to performing control of the nozzle motor 61, and can perform control of various mechanisms. For example, the control device 100 controls opening or closing of a solenoid valve having a function of controlling flow of fluid by electromagnetic means. For example, the control device 100 switches supply and stop of tap water from a water supply pipe by controlling the solenoid valve.

[0126] The control device 100 transmits control information to the nozzle motor 61 and the like by wire. Note that the control device 100 can transmit control information to the nozzle motor 61 and the like by wireless. For example, in a case where the control device 100 is configured as a device different from the toilet device 2, control information of the nozzle motor 61 and the like can be transmitted to the toilet device 2 by wireless. In this case, the control device of the toilet device 2 can control the nozzle motor 61 and the like based on the received control information.

[0127] Further, the control device 100 can control Figure 1 the toilet lid 9 and the toilet seat 5 illustrated in FIG. 1. In this case, the control device 100 controls the toilet lid 9 and the toilet seat 5 based on a signal transmitted from the operation device 30. The control device 100 controls the toilet lid 9 based on a signal of a control instruction related to opening or closing of the toilet lid transmitted from the operation device 30. The control device 100 controls the toilet seat 5 based on a signal of a control instruction related to opening or closing of the seating portion transmitted from the operation device 30. The control device 100 transmits control information to the toilet lid 9 and the toilet seat 5 by wire. Note that the control device 100 can transmit control information to the toilet lid 9 and the toilet seat 5 by wireless.

[0128] The control device 100 determines whether a user's seating is detected by the seating detection mechanism, such as the human body sensor 32, the seating sensor 33, and the illumination sensor 34. The control device 100 determines whether a user's seating on the toilet seat 5 is detected based on defecation behavior usage prediction information obtained from the seating detection mechanism and based on the detection by the seating detection mechanism.

[0129] The nozzle motor 61 is a driving source (motor) for driving the washing nozzle 6 forward and backward. The nozzle motor 61 controls the washing nozzle 6 to move forward and backward relative to the main body 3. The nozzle motor 61 controls the washing nozzle 6 to move forward and backward based on instructions from the control device 100.

[0130] exist Figure 5 The illustrated structure shows, as an example, a configuration in which the control device 100 and other components are included in the toilet seat apparatus 2. However, the control device 100, the human body sensor 32, the seat occupancy sensor 33, and the illuminance sensor 34, etc., can be configured as a separate device from the toilet seat apparatus 2. For example, the control device 100 can be configured as a separate device from the toilet seat apparatus 2. For example, the control device 100 can be a server device and can be located at a distance from the toilet seat apparatus 2. In this case, the control device 100 communicates with each device, such as the toilet seat apparatus 2, the human body sensor 32, the seat occupancy sensor 33, and the illuminance sensor 34, and receives various information from each device. In this case, the toilet seat apparatus 2 can also include a structure (control circuit, etc.) for controlling various components of the toilet seat apparatus 2, such as the nozzle motor 61. It should be noted that the above is merely an example, and the biometric information measurement system 1 can adopt any device structure as long as it can achieve the desired processing.

[0131] <1-6. Functional Structure of Control Device>

[0132] Below, refer to Figure 6 The functional structure of the control device will be described. Figure 6 : is a block diagram showing an example of the structure of the control device of the embodiment. Figure 6 As shown, the control device 100 includes a communication unit 110, a storage unit 120, and a control unit 130. It should be noted that the structure of the control device 100 is not limited to Figure 6 The configuration shown may be another configuration as long as the desired processing can be realized. For example, the control device 100 may not include the communication unit 110 .

[0133] The communication section 110 is realized by a communication circuit or the like, for example. The communication section 110 is connected to a predetermined network by wire or wirelessly, and transmits and receives information between the control device 100 and an external information processing device. The communication section 110 is connected to a predetermined network by wire or wirelessly, and transmits and receives information between the control device 100 and another device such as the operation device 30. Note that the communication section 110 can be configured as a device (communication device) different from the control device 100, and the toilet device 2 can have the communication section 110.

[0134] The storage section 120 is realized by a semiconductor storage element such as a RAM (Random Access Memory), a flash memory, or a storage device such as a hard disk or an optical disk, for example. The storage section 120 is a computer-readable recording medium that can non-temporarily record data and the like used by various information processing programs and the like, for example.

[0135] The storage section 120 of the embodiment stores various information required for processing. The storage section 120 stores various information acquired from another device such as various sensors. The storage section 120 stores various information used in various information processing. The storage section 120 stores information used in various processing. For example, the storage section 120 stores information related to a threshold value used in processing, such as a first threshold value and a second threshold value.

[0136] The storage section 120 stores information indicating a predetermined condition used when it is determined whether information can be changed. The storage section 120 stores information indicating a predetermined condition including at least one of the first calculation value being higher than the first threshold value or the second calculation value being higher than the second threshold value that is smaller than the first threshold value. The storage section 120 stores information indicating a predetermined condition including the second calculation value being higher than a zeroth calculation value corresponding to a malodorous gas and hydrogen gas calculated based on a detection result of the second gas sensor. The storage section 120 functions as a storage mechanism that stores past first information. The storage section 120 stores various history record information such as a past estimation processing result, past output information, and the like.

[0137] Returning to Figure 6Continuing the explanation. For example, the control unit 130 is implemented by executing programs stored in the control device 100 (e.g., various information processing programs disclosed herein) using an MPU (Micro Processing Unit), a CPU (Central Processing Unit), or the like, using RAM or the like as a work area. It should be noted that the control unit 130 can be implemented, for example, by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0138] like Figure 6 As shown, the control unit 130 includes an acquisition unit 131, a processing unit 132, and an output unit 133, which implement or execute the information processing functions or effects described below. It should be noted that the internal structure of the control unit 130 is not limited to Figure 6 The structure shown may be another structure as long as it can perform the information processing described later.

[0139] The acquisition unit 131 acquires various information. The acquisition unit 131 acquires various information from the storage unit 120. The acquisition unit 131 receives information from other devices. The acquisition unit 131 receives information detected by various sensors (such as detection information).

[0140] The acquisition unit 131 acquires information (detection information, etc.) detected by the seating detection mechanism from at least one of the human sensor 32 , seating sensor 33 , and illuminance sensor 34 .

[0141] The acquisition unit 131 acquires defecation behavior usage prediction information based on the detection by the seating detection mechanism. For example, the acquisition unit 131 acquires defecation behavior usage prediction information indicating the user's seating.

[0142] The processing unit 132 performs various processes. The processing unit 132 performs various processes using information stored in the storage unit 120. The processing unit 132 controls the gas detection device 20.

[0143] The processing unit 132 performs a determination process. The processing unit 132 performs a determination process using various information stored in the storage unit 120. The processing unit 132 uses the various information acquired by the acquisition unit 131 to determine whether or not to execute the reference value control.

[0144] The processing section 132 performs a calculation process. The processing section 132 performs a calculation process using various information stored in the storage section 120. The processing section 132 performs a calculation process using various information acquired by the acquisition section 131.

[0145] The processing section 132 calculates various information related to the gas. The processing section 132 calculates a value based on a measured value measured by the gas detection device 20. The processing section 132 calculates a resistance value of the sensor element based on a voltage value measured by the gas sensor 40. For example, the processing section 132 calculates a resistance value of the sensor element from a measured voltage value using a function representing a relationship between a voltage value and a resistance value of the sensor element. The processing section 132 calculates an inverse of the resistance value of the sensor element (also referred to as a "calculation value") using Equation (1).

[0146] The processing section 132 can calculate a concentration of the gas based on the calculated resistance value of the sensor element. In this case, the processing section 132 calculates a concentration of the gas from the calculated resistance value using a function representing a relationship between a resistance value and a concentration of the gas.

[0147] The processing section 132 performs an estimation process in which information for estimating a health state of the user (health estimation information) or information related thereto is estimated based on a first calculation value corresponding to hydrogen and a third calculation value corresponding to a malodorous gas, in which the first calculation value is obtained based on a detection result of the first gas sensor, i.e., the gas sensor 40a. Note that the processing section 132 can not perform the estimation process in a case where the estimation process is performed by the estimation mechanism 200.

[0148] The processing section 132 calculates a second calculation value corresponding to hydrogen of the gas sensor 40b based on a plurality of calculation values corresponding to hydrogen contained in the gas. The processing section 132 calculates a third calculation value corresponding to a malodorous gas based on a detection result of the gas sensor 40b and the second calculation value. The processing section 132 calculates the second calculation value using a plurality of calculation values including the first calculation value corresponding to hydrogen obtained based on a detection result of the gas sensor 40a.

[0149] The processing section 132 calculates a second calculation value that is a statistical value of a plurality of calculation values obtained by the gas sensor 40a measuring the gas in the sealed space a plurality of times. The processing section 132 calculates a second calculation value that is a statistical value of a plurality of calculation values obtained by measuring the gas in the storage section a plurality of times. The processing section 132 calculates a second calculation value that is a statistical value of one or a plurality of calculation values obtained by measuring the gas in the flow passage one or a plurality of times.

[0150] The processing unit 132 calculates a second calculated value using a plurality of calculated values, including the first calculated value and a fourth calculated value corresponding to hydrogen gas obtained based on the detection results of the gas sensor 40c. For example, if the difference between the amount or concentration calculated based on the first calculated value and the amount or concentration calculated based on the fourth calculated value is less than a specified value, the processing unit 132 determines that the user's defecation gas does not contain methane gas. For example, if the difference between the amount or concentration calculated based on the first calculated value and the amount or concentration calculated based on the fourth calculated value is greater than a specified value, the processing unit 132 determines that the user's defecation gas contains methane gas.

[0151] If the user's excretion gas is determined to contain methane gas, the processing unit 132 uses the gas sensor 40c as a sensor for detecting methane gas. If the user's excretion gas is determined not to contain methane gas, the processing unit 132 uses the gas sensor 40c as a sensor for detecting hydrogen gas.

[0152] The processing unit 132 calculates a first calculated value corresponding to hydrogen gas based on the detection result of the first gas sensor, namely, the gas sensor 40a. Based on the first calculated value, the processing unit 132 calculates a second calculated value corresponding to hydrogen gas from the second gas sensor, namely, the gas sensor 40b. When the gas sensor 40c is used as a sensor for detecting hydrogen gas, the processing unit 132 calculates the second calculated value based on the first calculated value and the fourth calculated value. Based on the detection result of the gas sensor 40b and the second calculated value, the processing unit 132 calculates a third calculated value corresponding to the odorous gas.

[0153] Processing unit 132 corrects at least one of the zeroth calculated value, the second calculated value, or the third calculated value. The zeroth calculated value is a calculated value corresponding to odorous gas and hydrogen gas, calculated based on the detection results of gas sensor 40b. As a correction, processing unit 132 decreases the second calculated value or increases the zeroth calculated value.

[0154] If the first or second calculated value exceeds the first threshold, or if the third calculated value falls below a second threshold that is smaller than the first threshold, the processing unit 132 performs correction. If the second calculated value exceeds the zeroth calculated value, the processing unit 132 performs correction. The processing unit 132 has a pre-set correction value corresponding to the odorous gas, and if the third calculated value falls below the third threshold, the third calculated value is replaced with the correction value as a correction.

[0155] When at least one of the first calculated value, the second calculated value, and the third calculated value satisfies a prescribed condition, the processing section 132 performs control to change the first information, which is the health state of the user or information related to the health state, output by the output mechanism, on the basis of the third calculated value. When the prescribed condition is satisfied, the processing section 132 changes the value included in the first information to a set value set in advance.

[0156] The processing section 132 changes the first information on the basis of the past first information stored in the storage mechanism. When the prescribed condition is satisfied, the processing section 132 determines to output the second information related to the measurement accuracy. When the prescribed condition is satisfied, the processing section 132 determines to output the third information related to the measurement error.

[0157] The output section 133 performs output processing of outputting various information. The output section 133 functions as a transmission section that transmits various information. The output section 133 performs the output processing by transmitting information to an external information processing device. The output section 133 transmits information to the external information processing device. For example, the output section 133 transmits various information to the estimation mechanism 200. For example, the output section 133 transmits various information to a computer, a smart phone, or the like used by the manager of the estimation mechanism 200. In addition, the output section 133 can perform the output processing by transmitting information to the operation device 30 (or the display screen 31).

[0158] The output section 133 transmits various information used for the estimation processing by the estimation mechanism 200 to the estimation mechanism 200. The output section 133 transmits information indicating a measurement value measured by the gas detection device 20. The output section 133 transmits information indicating a calculated value calculated by the processing section 132.

[0159] The output section 133 outputs various information such as content. When the prescribed condition is satisfied, the output section 133 outputs information including a changed score that is changed from an original score. When the prescribed condition is not satisfied, the output section 133 outputs information including the score as the original data. When the prescribed condition is satisfied, the output section 133 outputs the second information related to the measurement accuracy. When the prescribed condition is satisfied, the output section 133 outputs the third information related to the measurement error.

[0160] <1-7. Gas Sensor>

[0161] Next, the structure of the gas sensor will be described using Figure 7 The structure of the gas sensor will be described. Figure 7 is a diagram showing an example of the structure of the gas sensor. Specifically, Figure 7 is a diagram showing an example of the circuit structure CR of the semiconductor gas sensor 40.

[0162] The gas sensor 40 is configured with a sensor element and a resistance element for measurement. In Figure 7 The gas sensor 40 has a circuit structure CR in which the sensor element (corresponding to the sensor resistance RS in Figure 7 ) and the resistance element for measurement (corresponding to the resistance element RL in Figure 7 ) are connected in series.

[0163] In the semiconductor gas sensor 40, a value related to the amount of gas is calculated using formula (1) shown below. Formula (1) corresponds to the circuit structure CR shown in Figure 7 , and is the same as the function FC1 in Figure 7 .

[0164] RS = ((Vc - Vout) / Vout) x RL … (1)

[0165] “RS” in formula (1) represents the resistance value of the sensor element. For example, “RS” in formula (1) represents the resistance value of the sensor resistance RS as an example of a value calculated based on the measurement by the gas sensor 40. As such, formula (1) is a calculation formula for the resistance value.

[0166] “RL” in formula (1) represents the resistance value of the resistance element RL. “Vc” in formula (1) represents the voltage value of the circuit voltage Vc. “Vout” in formula (1) represents the voltage value of the output voltage Vout in the resistance element. For example, “Vout” in formula (1) represents the voltage value of the resistance element RL as an example of a measurement value measured by the gas sensor 40.

[0167] The resistance value of the sensor resistance RS in formula (1) is an index related to the amount of gas. The biological information measurement system 1 calculates the index (resistance value) related to the amount of gas from the measurement value (voltage value), and calculates the amount of gas from the calculated resistance value. Note that detailed explanations regarding the principle of the semiconductor gas sensor and the like are omitted, for example, only “RH” shown in the circuit structure CR in Figure 7 corresponds to a heater (resistor) for heating the sensor element, and “V H ” corresponds to the voltage of the heater. Note that the gas sensor in the present application is not limited to a semiconductor sensor, and any sensor that satisfies formula (1) above can be substituted.

[0168] <1-8. Outline of processing in biological information measurement system>

[0169] Next, a processing example premised on the structure of the above-described biological information measurement system 1 will be described. First, before describing various processes in the biological information measurement system 1, the relationship between the value obtained based on the measurement of the gas sensor and the amount of the gas, and the like will be described. Note that the same parts as the above-described content will be appropriately omitted from the description.

[0170] <1-8-1. Example of relationship between measurement and amount of gas sensor>

[0171] First, the relationship between the measurement and the amount of the gas sensor will be described. Figure 8 Figure 8 is a graph showing an example of the relationship between the value obtained based on the measurement of the sensor and the amount of the gas.

[0172] For example, Figure 8 shows a double logarithmic graph of the calculated value (reciprocal of the resistance value) of the component A obtained based on the measurement of the gas sensor and the gas amount (also simply referred to as "amount") of the component A, that is, the coordinate graph GR11. Specifically, in the coordinate graph GR11, Figure 8 the vertical axis is the calculated value "1 / kΩ" of the component A, and the horizontal axis is the amount "mL" of the component A.

[0173] The points (O) in the coordinate graph GR11, for example, respectively correspond to the measured results obtained in order to derive the correlation between the measurement and the amount of the gas sensor, and are values calculated from the results actually measured by the gas sensor with the gas of the component A including the amount corresponding to the horizontal axis as the object. Note that in the coordinate graph GR11, Figure 8 five points (measured results) are illustrated for the purpose of description, but the measured results can be more than six or less than four.

[0174] The line LN1 of the coordinate graph GR11 shows the relationship derived from the calculated value of the component A and the gas amount of the component A. The formula (function) corresponding to the line LN1 is a regression formula for calculating (estimating) the gas amount from the calculated value for the component A. For example, the formula (function) corresponding to the line LN1 is derived by regression analysis using the points (measured results) in the coordinate graph GR11.

[0175] ​As such, the calculated value of the component A derived from the measurement of the gas sensor has a linear correlation with the amount of the component A on a log scale. Therefore, the gas amount of the component A can be calculated from the calculated value such as the peak value of the gas sensor. That is, the gas amount of each component can be calculated from the calculated value based on the measurement of each of the plurality of gas sensors. By calculating the gas amount of each component, the biological information measurement system 1 can calculate the ratio relationship between the amount of the health-related gas obtained by adding the gas amounts of the components corresponding to the health-related gas and the amount of the odor gas obtained by adding the gas amounts of the components belonging to the odor gas.

[0176] <1-8-2. Examples of gas sensor and reaction component>

[0177] Next, the calculated value of the component A derived from the measurement of the gas sensor is calculated using the following formula (1). Figure 9 The examples of the gas sensor and the reaction component are described. Figure 9 is a diagram showing an example of the gas sensor and the reaction component. In Figure 9 the correspondence table TB11, the correspondence relationship between each gas sensor and the component that reacts with the gas sensor is shown. In Figure 9 , the case where the gas sensor reacts with the component is shown as "O", and the case where the gas sensor does not react with the component is shown as "X". As shown in the correspondence table TB11 in Figure 9 , the components that react in each gas sensor are different.

[0178] In Figure 9 , the first gas sensor (hydrogen sensor) is a sensor that reacts only with hydrogen (H2). For example, the gas sensor 40a is the first gas sensor (hydrogen sensor). For example, the gas sensor 40a of the biological information measurement system 1 is a sensor that reacts only with hydrogen, that is, the resistance value of the sensor resistance RS in formula (1) changes due to the change in the amount of hydrogen.

[0179] As shown in the first gas sensor in Figure 9 , in the case where it reacts only with hydrogen, the calculated value derived from hydrogen included in the user's excrement gas is represented by formula (2) shown below.

[0180] 1 / R s_1 = 1 / R air + 1 / R H2_1 … (2)

[0181] The "R s_1 " in formula (2) corresponds to the resistance value of the sensor resistance RS of the first gas sensor. For example, the "R s_1 " in formula (2) is the resistance value of the sensor resistance RS calculated from the measurement value of the first gas sensor.

[0182] In formula (2), “R air ” corresponds to the resistance value of the first gas sensor derived from the baseline. For example, “R air ” is the resistance value derived from the air in the pelvic floor 8 before the user’s defecation gas is discharged.

[0183] In addition, “R H2_1 " corresponds to the resistance value of the first gas sensor derived from hydrogen. For example, "R H2_1 ” is the resistance value derived from hydrogen contained in the defecation gas discharged by the user.

[0184] In formula (2), “R s_1 " and "R in formula (2) air " is a calculated value obtained based on the measurement of the first gas sensor and is detected (acquired) by the measurement of the first gas sensor. Therefore, the biological information measurement system 1 calculates "R" in the formula (2) by substituting the value obtained by the measurement of the first gas sensor into the formula (2). H2_1 ”.

[0185] On the other hand, Figure 9 In the formula (1), the second gas sensor (odor gas sensor) is a sensor that reacts with odor gas (H2S, etc.) but also reacts with hydrogen (H2). For example, the gas sensor 40b of the biological information measurement system 1 is a second gas sensor (odor gas sensor). For example, the gas sensor 40b is a sensor that reacts with odor gas and hydrogen, that is, the resistance value of the sensor resistor RS in the formula (1) changes with the amount of odor gas and the amount of hydrogen. It should be noted that in this embodiment, the components of the detection part are adjusted separately so that the detection part used by the hydrogen sensor reacts strongly with hydrogen, and the detection part used by the odor gas sensor reacts strongly with odor gas.

[0186] like Figure 9 The second gas sensor shown, when reacting with odorous gas and hydrogen, calculates the value of odorous gas contained in the user's defecation gas, which is expressed by the following formula (3).

[0187] 1 / R s_2 =1 / R air +1 / R H2_2 +1 / R H2S_2 … (3)

[0188] In formula (3), “R s_2 ” corresponds to the resistance value of the sensor resistor RS of the second gas sensor. For example, “R s_2” is the resistance value of the sensor resistor RS calculated based on the measurement value of the second gas sensor.

[0189] In formula (3), “R air ” corresponds to the resistance value of the second gas sensor derived from the baseline. For example, “R air ” is the resistance value of the air in the pelvic floor 8 before the user's defecation gas is discharged.

[0190] In addition, “R H2_2 ” corresponds to the resistance value of the second gas sensor derived from hydrogen. For example, “R H2_2 ” is the resistance value derived from hydrogen contained in the defecation gas discharged by the user.

[0191] In addition, “R H2S_2 " corresponds to the resistance value of the second gas sensor derived from the odorous gas. For example, "R H2S_2 " is the resistance value of malodorous gases such as hydrogen sulfide contained in the defecation gas discharged by the user.

[0192] In formula (3), “R s_2 " and "R in formula (3) air " is a calculated value based on the measurement of the second gas sensor and is detected (obtained) by the measurement of the second gas sensor, but in formula (3), "R H2_2 ” and “R H2S_2 " These two variables are not determined. Therefore, the biological information measurement system 1 cannot determine "R" in the formula (3) only by the formula (3). H2S_2 " Therefore, the biological information measurement system 1 uses the information of the gas sensors other than the second gas sensor to calculate (estimate) the amount of odorous gas, which will be described later.

[0193] In addition, Figure 9 In the third gas sensor (methane gas sensor), although it reacts with methane (CH4, etc.), it also reacts with hydrogen (H2). For example, the gas sensor 40c of the biological information measurement system 1 is the third gas sensor (methane gas sensor). For example, the gas sensor 40c is a gas sensor that reacts with methane and hydrogen. In other words, the resistance value of the sensor resistor RS in equation (1) changes with changes in the amount of methane and hydrogen.

[0194] In addition, Figure 9In the present embodiment, the fourth gas sensor (carbon dioxide sensor) is a sensor that reacts only with carbon dioxide (CO2). For example, the CO2 sensor of the biological information measurement system 1 is the fourth gas sensor (carbon dioxide sensor). For example, the CO2 sensor is an infrared gas sensor that reacts only with carbon dioxide.

[0195] <1-8-3. Calculation example of the amount of odor gas>

[0196] As described above, the calculated value (reciprocal of the resistance value) of the second gas sensor (odor gas sensor) is a total value of a plurality of components. For example, the calculated value (reciprocal of the resistance value) of the second gas sensor is a total of the calculated value (reciprocal of the resistance value) of the reference line and the calculated value (reciprocal of the resistance value) derived from the reaction components (odor gas + health-related gas). Therefore, the biological information measurement system 1 derives the calculated value derived from each component by simultaneous equations of the formulas corresponding to the plurality of gas sensors. The calculated value derived from each component is used as a parameter for calculating the amount of odor gas. Figure 10 This point will be described. Figure 10 is a diagram showing an example of the calculation process of the amount of odor gas.

[0197] Figure 10 The function group FG11 in indicates the formulas (2) to (6) used in the calculation (estimation) of the amount of odor gas and the correspondence relationship thereof.

[0198] The formula (2) and the formula (4) show details of the calculated value of the first gas sensor (hydrogen sensor) and the relationship between the calculated value and the gas amount. Note that, Figure 10 The formula (2) in is the same as the above-described formula (2), and thus detailed description is omitted.

[0199] logH2 amount = log (1 / R H2_1 ) x CE1 + CS1 … (4)

[0200] "H2 amount" in the formula (4) is the amount of hydrogen calculated (estimated) from the measurement of the first gas sensor, and "logH2 amount" corresponds to the log representation (logarithmic value) of the amount of hydrogen.

[0201] "R H2_1 " in the formula (4) is the resistance value derived from hydrogen based on the measurement of the first gas sensor, and "log (1 / R H2_1 )" corresponds to the log representation (logarithmic value) of the calculated value (reciprocal of the resistance value) derived from hydrogen.

[0202] "CE1" in the formula (4) is a coefficient related to "log (1 / R H2_1 )", and is set to an arbitrary value such as "-0.4..." or the like. In addition, "CS1" in the formula (4) is a coefficient related to "log (1 / RH2_1 ) x CE1" added, for example, set to "1.1..." or the like. For example, the manager of the biological information measuring system 1 or the like derives the coefficient "CE1" or the constant "CS1" included in the formula (4) by measurement or the like, and sets the formula (4) further.

[0203] The formula (3), the formula (5), and the formula (6) show details of the calculated value of the second gas sensor (odor gas sensor), and the relationship between the calculated value and the gas amount. Note that, Figure 10 The formula (3) in the formula (3) is the same as the above formula (3), and thus the detailed description is omitted.

[0204] logH2 amount = log (1 / R H2_2 ) x CE2 + CS2... (5)

[0205] "H2 amount" in the formula (5) is the amount of hydrogen calculated (estimated) from the measurement of the second gas sensor, and "logH2 amount" corresponds to the log representation (logarithmic value) of the amount of hydrogen.

[0206] "R H2_2 " in the formula (5) is the resistance value derived from hydrogen based on the measurement of the second gas sensor, and "log (1 / R H2_2 )" corresponds to the log representation (logarithmic value) of the calculated value (reciprocal of the resistance value) derived from hydrogen.

[0207] "CE2" in the formula (5) is a coefficient related to "log (1 / R H2_2 )", for example, set to "-0.8..." or the like. Further, "CS2" in the formula (5) is a constant added to "log (1 / R H2_2 ) x CE2", for example, set to "2.0..." or the like. For example, the manager of the biological information measuring system 1 or the like derives the coefficient "CE2", the constant "CS2" included in the formula (5) by measurement or the like, and sets the formula (5) further.

[0208] logH2S amount = log (1 / R H2S_2 ) x CE3 + CS3... (6)

[0209] "H2S amount" in the formula (5) is the amount of odor gas calculated (estimated) from the measurement of the second gas sensor, and "logH2S amount" corresponds to the log representation (logarithmic value) of the amount of odor gas.

[0210] "R H2S_2 " in the formula (5) is the resistance value derived from odor gas based on the measurement of the second gas sensor, and "log (1 / R H2S_2) corresponds to a log expression (log value) of a calculated value (reciprocal of resistance value) derived from the odor gas.

[0211] "CE3" in the formula (5) is a coefficient related to "log(l / R H2S_2 )" and is set to an arbitrary value such as "-0.7..." and the like. Further, "CS3" in the formula (5) is a constant added to "log(l / R H2S_2 ) x CE3" and is set to an arbitrary value such as "1.8..." and the like. For example, the manager of the biological information measuring system 1 or the like derives the coefficient "CE3" and the constant "CS3" included in the formula (6) through measurement or the like, and sets the formula (6) further.

[0212] Here, one example of the process of calculating (estimating) the amount of odor gas for the biological information measuring system 1 using the formulas (2) to (6) will be described.

[0213] First, the biological information measuring system 1 uses the formula (2) and the formula (4) to calculate a value related to the amount of hydrogen gas based on the measurement of the first gas sensor. For example, the biological information measuring system 1 uses the values acquired in the measurement of the gas sensor 40a (the value of "R s_1 " and the value of "R air " in the formula (2)), the formula (2), and the formula (4) to calculate the value of "logH2 amount" in the formula (4).

[0214] Then, the biological information measuring system 1 applies the calculated value of "ogH2 amount" in the formula (4) to the formula (5) to calculate the value of "R H2S_2 " in the formula (5).

[0215] Then, the biological information measuring system 1 applies the calculated value of "R H2S_2 " in the formula (5) to the formula (3) to calculate the value of "R H2S_2 " in the formula (5). For example, the biological information measuring system 1 applies the calculated value of "R H2S_2 " in the formula (5), the values acquired through the measurement of the gas sensor 40b (the value of "R s_2 " and the value of "R air " in the formula (3)) to the formula (3) to calculate the value of "R H2S_2 " in the formula (3). For example, the biological information measuring system 1 applies the calculated value of "R H2S_2 " in the formula (3) to the formula (6) to calculate the value of "H2S amount" in the formula (6).

[0216] In this way, the biometric system 1 calculates (estimates) the amount of odorous gas by subtracting the effect of hydrogen from the output of the second gas sensor (odorous gas sensor). It should be noted that the above processing is only an example, and the biometric system 1 can perform any processing as long as it can calculate (estimate) the amount of odorous gas.

[0217] <1-8-4. Problems with calculating the amount of odorous gas>

[0218] Next, use Figure 11 , the problem of calculating the amount of odorous gas using the measurement of the above-mentioned hydrogen sensor is explained. Figure 11 This is a diagram showing an overview of calculation of the amount of odorous gas.

[0219] Figure 11 Measurement MS2 corresponds to the measurement of the second gas sensor (odor gas sensor). For example, the waveform in measurement MS2 represents the sensor output (e.g., voltage value). In the odor gas calculation process, a zeroth calculated value ZV1 is calculated as the zeroth calculated value corresponding to hydrogen and odor gas based on the detection results of measurement MS2 by the second gas sensor (step S10). For example, the length of zeroth calculated value ZV1 represents the magnitude of the value of zeroth calculated value ZV1. Figure 11 The zeroth calculated value ZV1 includes a first mixed value HV1 which is a value corresponding to hydrogen gas, and a second mixed value OV1 which is a value corresponding to odorous gas.

[0220] For example, the first mixed value HV1 is the value of “R H2_2 "The exact value (correct value) corresponding to the second mixed value OV1. In addition, for example, the second mixed value OV1 is the same as "R H2S_2 "The exact value (correct value) corresponding to Figure 11 In FIG. 1 , for convenience of explanation, details of the first mixed value HV1 and the second mixed value OV1 in the zeroth calculated value ZV1 are illustrated, but they are actually estimated based on a third calculated value described later.

[0221] Figure 11 The measurement MS1 in the measurement corresponds to the measurement of the first gas sensor (hydrogen sensor). For example, the waveform in the measurement MS1 represents the sensor output (for example, a voltage value). In the odor gas calculation process, a first calculation value FV1 is calculated as a first calculation value corresponding to hydrogen obtained based on the detection structure of the measurement MS1 of the first gas sensor (step S11). For example, the first calculation value FV1 is equal to "R H2_1corresponds to. The calculated value related to the amount of hydrogen calculated from the measured value of the first gas sensor. Note that the numbers of the steps Sll and the like are symbols for distinguishing the explanation of each process, and do not indicate the order, for example, the step Sll can be executed before the step S10.

[0222] In the odor gas calculation process, the second calculated value SVl is calculated as the second calculated value of the second gas sensor corresponding to hydrogen based on the first calculated value FVl (step S12). For example, the second calculated value SVl is an estimated value corresponding to "R H2_2 corresponds to. The calculated value related to the amount of hydrogen calculated from the measured value of the first gas sensor. Note that the numbers of the steps Sll and the like are symbols for distinguishing the explanation of each process, and do not indicate the order, for example, the step Sll can be executed before the step S10.

[0223] In the odor gas calculation process, the third calculated value TVl is calculated as the third calculated value corresponding to the odor gas based on the zeroth calculated value ZVl and the second calculated value SVl (step S13). The third calculated value TVl is calculated as the third calculated value corresponding to the odor gas by subtracting the second calculated value SVl from the zeroth calculated value ZVl. For example, the third calculated value TVl is an estimated value corresponding to "R H2S_2 corresponds to. The calculated value related to the amount of hydrogen calculated from the measured value of the first gas sensor. Note that the numbers of the steps Sll and the like are symbols for distinguishing the explanation of each process, and do not indicate the order, for example, the step Sll can be executed before the step S10.

[0224] Next, specific examples of the problem in the calculation of the amount of odor gas will be described using Figure 12 and Figure 13 . Figure 12 and Figure 13 are graphs showing an example of the influence of the measurement deviation of the gas sensor on the calculation. Note that the same parts as those described in Figure 11 and the like will be appropriately omitted from the description.

[0225] First, a problem that can occur even if the amount of odor gas reaches a certain level will be described using Figure 12 .

[0226] The zeroth calculated value ZV2 is a zeroth calculated value corresponding to hydrogen and odor gas based on the detection result measured by the second gas sensor. Figure 12The zeroth calculated value ZV2 includes a first mixed value HV2 which is a value corresponding to hydrogen, and a second mixed value OV2 which is a value corresponding to odorous gas.

[0227] For example, the first mixed value HV2 is the value of “R H2_2 "The exact value (correct value) corresponding to the second mixed value OV2. In addition, for example, the second mixed value OV2 is the same as "R H2S_2 "The exact value (correct value) corresponding to Figure 12 In FIG. 1 , for convenience of explanation, details of the first mixed value HV2 and the second mixed value OV2 in the zeroth calculated value ZV2 are illustrated, but they are actually estimated based on the third calculated value described later.

[0228] Calculate the first calculated value corresponding to hydrogen gas based on the detection result of the first gas sensor. Figure 12 The second calculated value SV2 in the formula is the second calculated value of the second gas sensor corresponding to hydrogen. For example, the second calculated value SV2 is the second calculated value of the second gas sensor corresponding to hydrogen. H2_2 ” corresponds to the estimated value.

[0229] If there is a deviation in the measurement of the first gas sensor, the deviation will also be reflected in the second calculated value SV2. Figure 12 3 shows a case where the measurement error of the second calculated value SV2 due to the measurement deviation of the first gas sensor is ±20%. Figure 12 The measurement error ME2 in the second calculation value SV2 visualizes the measurement error ±20% in the second calculation value SV2, and the value of the second calculation value SV2 can vary between the upper end and the lower end of the measurement error ME2.

[0230] When the measurement error of the first gas sensor reaches its maximum in the negative direction (e.g., a measurement error of -20%), the second calculated value SV2 becomes a value corresponding to the length to the upper end of the measurement error ME2. In this case, the second calculated value SV2 is at its minimum value, and the estimated hydrogen gas amount is low.

[0231] When the measurement error of the first gas sensor reaches its maximum in the positive direction (e.g., a measurement error of +20%), the second calculated value SV2 becomes a value corresponding to the length to the lower end of the measurement error ME2. In this case, the second calculated value SV2 is at its maximum value, and the amount of hydrogen gas is estimated to be high.

[0232] Based on the zeroth calculated value ZV2 and the second calculated value SV2, a third calculated value TV2 is calculated as the third calculated value corresponding to the odorous gas (step S21). For example, the third calculated value TV2 is the value of "R H2S_2 ” corresponds to the estimated value.

[0233] wherein the measurement error ±20% in the second calculated value SV2 affects the third calculated value TV2. Figure 12 The error range ER2 in the third calculated value TV2 visualizes the error that can occur in the third calculated value TV2 due to the measurement error of the second calculated value SV2. In the case where the measurement error of the second calculated value SV2 is ±20%, the value of the third calculated value TV2 can vary between the upper end and the lower end of the error range ER2.

[0234] In the case where the measurement error of the second calculated value SV2 is -20%, the third calculated value TV2 becomes a value corresponding to the length up to the upper end of the error range ER2. In this case, the third calculated value TV2 is the maximum value, and it is presumed that the amount of the odor gas is large.

[0235] In the case where the measurement error of the second calculated value SV2 is +20%, the third calculated value TV2 becomes a value corresponding to the length up to the lower end of the error range ER2. In this case, the third calculated value TV2 is the minimum value, and it is presumed that the amount of the odor gas is small.

[0236] Next, the case where the amount of hydrogen is large and the amount of the odor gas is small will be described using Figure 13 .

[0237] The zeroth calculated value ZV3 is a zeroth calculated value corresponding to hydrogen and the odor gas, which is based on the detection result measured by the second gas sensor. Figure 13 The zeroth calculated value ZV3 in the error range ER3 includes a first mixed value HV3 that is a value corresponding to hydrogen, and a second mixed value OV3 that is a value corresponding to the odor gas.

[0238] For example, the first mixed value HV3 is an exact numerical value (correct value) corresponding to “R H2_2 ” of formula (3). Further, for example, the second mixed value OV3 is an exact numerical value (correct value) corresponding to “R H2S_2 ” of formula (3). Note that, in the error range ER3, the details of the first mixed value HV3 and the second mixed value OV3 in the zeroth calculated value ZV3 are illustrated for the purpose of explanation, but in fact, they are presumed based on the third calculated value described later. Figure 13

[0239] The second calculated value SV3 in the error range ER3 is calculated based on a first calculated value corresponding to hydrogen, which is based on the detection result measured by the first gas sensor. Figure 13 The second calculated value SV3 is a second calculated value corresponding to hydrogen of the second gas sensor. For example, the second calculated value SV3 is a presumed value corresponding to “R H2_2 ” of formula (3).

[0240] ​In the case where there is a measurement deviation of the first gas sensor, the measurement deviation is also reflected in the second calculated value SV3. In Figure 13 In the example of FIG. 6, the case where the measurement error of the first gas sensor is in the positive direction, and the second calculated value SV3 is greater than the zeroth calculated value ZV3, is shown as an example. In the case where the measurement error of the first gas sensor is in the positive direction, the amount of hydrogen gas is greater, and the amount of odor gas is less, so it is possible that the second calculated value SV3 is greater than the zeroth calculated value ZV3. Figure 13 In the example of FIG. 6, the case where the measurement error of the first gas sensor is in the positive direction, and the second calculated value SV3 is greater than the zeroth calculated value ZV3, is shown as an example. In the case where the measurement error of the first gas sensor is in the positive direction, the amount of hydrogen gas is greater, and the amount of odor gas is less, so it is possible that the second calculated value SV3 is greater than the zeroth calculated value ZV3.

[0241] In the case where the measurement error of the first gas sensor reaches a maximum in the negative direction (for example, measurement error -20%), the second calculated value SV3 becomes a value corresponding to the length to the upper end of the measurement error ME3. In this case, the second calculated value SV3 is a minimum value, and the amount of hydrogen gas is less.

[0242] In the case where the measurement error of the first gas sensor reaches a maximum in the positive direction (for example, measurement error +20%), the second calculated value SV3 becomes a value corresponding to the length to the lower end of the measurement error ME3. In this case, the second calculated value SV3 is a maximum value, and the amount of hydrogen gas is greater. In Figure 13 In the example of FIG. 6, the case where the measurement error of the first gas sensor is in the positive direction, and the second calculated value SV3 is greater than the zeroth calculated value ZV3, is shown as an example. In the case where the measurement error of the first gas sensor is in the positive direction, the amount of hydrogen gas is greater, and the amount of odor gas is less, so it is possible that the second calculated value SV3 is greater than the zeroth calculated value ZV3.

[0243] The third calculated value TV3 is calculated as a third calculated value corresponding to the odor gas, based on the zeroth calculated value ZV3 and the second calculated value SV3 (step S22). For example, the third calculated value TV3 is an estimated value corresponding to "R H2S_2 " of formula (3).

[0244] In the case where there is a measurement deviation of the first gas sensor, the measurement deviation is also reflected in the second calculated value SV3. In Figure 13 The error range ER3 visualizes the error that can occur in the third calculated value TV3 due to the measurement error of the second calculated value SV3, and in the case where the measurement error of the second calculated value SV3 is ±20%, the value of the third calculated value TV3 can vary between the upper end and the lower end of the error range ER3.

[0245] In the case where the measurement error of the second calculated value SV3 is -20%, the third calculated value TV3 becomes a value corresponding to the length to the upper end of the error range ER3. In this case, the third calculated value TV3 is a maximum value, and the amount of odor gas is greater.

[0246] In a case where the measurement error of the second calculated value SV3 is +20%, the third calculated value TV3 becomes a value corresponding to the length up to the lower end of the error range ER3. In this case, there is a possibility that the second calculated value SV3 is larger than the zeroth calculated value ZV3, and thus the amount of the odor gas of the third calculated value TV3 is 0 or less.

[0247] As such, in a case where the first gas sensor has a measurement bias, the measurement bias affects the estimated value of the amount of the odor gas of the first gas sensor. For example, in the case of the above-described Figure 13 , the influence of the measurement bias of the hydrogen amount of the first gas sensor is large, and sometimes the calculated value from the odor gas becomes 0 or less, and thus there is a possibility that the score cannot be calculated appropriately. In this case, it is difficult to perform the processing based on the gas measurement appropriately. Therefore, the biological information measurement system 1 solves the above-described problem by implementing any one of the following first processing, second processing, and third processing, and thus can perform the processing based on the gas measurement appropriately.

[0248] <1-9. First processing (multiple measurements)>

[0249] In order to suppress the influence of the measurement bias on the first gas sensor, the biological information measurement system 1 performs the first processing using a plurality of pieces of information. Specifically, the biological information measurement system 1 calculates the second calculated value of the second gas sensor corresponding to hydrogen based on a plurality of calculated values including the first calculated value corresponding to hydrogen obtained from the detection result of the first gas sensor.

[0250] Thus, the biological information measurement system 1 can suppress the influence of the measurement bias by multiple measurements. In the following examples, the structure of the biological information measurement system 1 and measurement examples when multiple measurements are performed are described.

[0251] <1-9-1. First measurement example>

[0252] First, the first measurement example is described. Figure 14 The first measurement example is described. Figure 14 is a diagram that shows the first measurement example of the gas sensor. Specifically, Figure 14 is a diagram that shows an outline of the processing using a plurality of pieces of data, that is, the first measurement example. In Figure 14 , only a part of the structure of the biological information measurement system 1 is illustrated in order to show the appearance of the processing. In Figure 14 , the gas detection device 20 has the gas sensor 40a as a hydrogen sensor and the gas sensor 40b as an odor gas sensor. Note that the same parts as the above-described content will be appropriately omitted from the description.

[0253] Figure 14The measurement MS11 corresponds to the measurement of the gas sensor 40a. For example, the line LN11 in the measurement MS11 indicates the measured value (voltage value) of the gas sensor 40a, that is, the sensor output. The grid portion in the measurement MS11 corresponds to the one-time measurement processing, and indicates the change in the sensor output generated by the excrement gas discharged at the time of one-time excretion, one-time flatulence, or the like. For example, the biological information measurement system 1 calculates the calculated value using the maximum value (peak value) of the one-time measurement processing as the measured value (voltage value).

[0254] In the first measurement example, the biological information measurement system 1 acquires a plurality of data using the gas sensor 40a for the excrement gas discharged by one-time excretion or one-time flatulence, and performs the averaging processing. For example, the biological information measurement system 1 performs the measurement of the gas sensor 40a a plurality of times, acquires a plurality of measured values, and averages a plurality of calculated values calculated from the measured values. For example, the biological information measurement system 1 calculates the second calculated value using the value obtained by averaging the calculated values corresponding to the plurality of measurements in the gas sensor 40a as the value of "R H2_1 " of Expression (2) (also referred to as "determination value").

[0255] As described above, the biological information measurement system 1 calculates the second calculated value that is the statistical value of a plurality of calculated values obtained by performing the measurement of the gas a plurality of times using the gas sensor 40a. In this case, the second calculated value is the statistical value of a plurality of calculated values obtained by performing the measurement of the gas a plurality of times using the gas sensor 40a. Thus, the biological information measurement system 1 averages a plurality of data, reduces the measurement deviation, and is able to calculate (estimate) the amount of hydrogen that is close to the true value. Note that, in the above example, the case where the average value is used as the determination value for calculating the second calculated value is described as an example, but as long as the value determined based on a plurality of data, the determination value for calculating the second calculated value is not limited to the average value, and can be an arbitrary value such as a median value.

[0256] <1-9-2. Second Measurement Example>

[0257] Next, the second measurement example will be described with reference to Figure 15 Figure 15 is a diagram illustrating the second measurement example of the biological information measurement system 1 having a specific structure for acquiring a plurality of data. Note that, for the same parts as described above, the description will be appropriately omitted. Figure 15 In the biological information measurement system 1, the gas sensor 40a is provided in the excrement collection container 20. The gas sensor 40a is a sensor that detects the amount of hydrogen in the excrement gas. The gas sensor 40a is configured to output a signal corresponding to the amount of hydrogen in the excrement gas. The biological information measurement system 1 is configured to calculate the amount of hydrogen in the excrement gas based on the signal output from the gas sensor 40a.

[0258] Figure 15 In the biological information measurement system 1, the gas sensor 40a is provided in the excrement collection container 20. The gas sensor 40a is a sensor that detects the amount of hydrogen in the excrement gas. The gas sensor 40a is configured to output a signal corresponding to the amount of hydrogen in the excrement gas. The biological information measurement system 1 is configured to calculate the amount of hydrogen in the excrement gas based on the signal output from the gas sensor 40a. Figure 15 ​​In the second measurement example, the biological information measurement system 1 stores the excrement gas for multiple detections in the sealing mechanism 50. In this case, the biological information measurement system 1 performs multiple measurements on the stored gas by the mechanism that retains the gas in the sealing mechanism 50 or the like. For example, in a case where the gas sensor detects an output of a prescribed value or more, the biological information measurement system 1 closes a check valve (not shown). Then, the biological information measurement system 1 stops the suction device 10 and retains the gas in the storage portion. Then, the biological information measurement system 1 causes the retained gas to contact the gas sensor 40a.

[0259] Figure 15 In the second measurement example, the biological information measurement system 1 stores the excrement gas for multiple detections in the sealing mechanism 50. In this case, the biological information measurement system 1 performs multiple measurements on the stored gas by the mechanism that retains the gas in the sealing mechanism 50 or the like. For example, in a case where the gas sensor detects an output of a prescribed value or more, the biological information measurement system 1 closes a check valve (not shown). Then, the biological information measurement system 1 stops the suction device 10 and retains the gas in the storage portion. Then, the biological information measurement system 1 causes the retained gas to contact the gas sensor 40a.

[0260] Figure 15 In the second measurement example, the biological information measurement system 1 stores the excrement gas for multiple detections in the sealing mechanism 50. In this case, the biological information measurement system 1 performs multiple measurements on the stored gas by the mechanism that retains the gas in the sealing mechanism 50 or the like. For example, in a case where the gas sensor detects an output of a prescribed value or more, the biological information measurement system 1 closes a check valve (not shown). Then, the biological information measurement system 1 stops the suction device 10 and retains the gas in the storage portion. Then, the biological information measurement system 1 causes the retained gas to contact the gas sensor 40a.

[0261] In the second measurement example, the biological information measurement system 1 stores the excrement gas for multiple detections in the sealing mechanism 50. In this case, the biological information measurement system 1 performs multiple measurements on the stored gas by the mechanism that retains the gas in the sealing mechanism 50 or the like. For example, in a case where the gas sensor detects an output of a prescribed value or more, the biological information measurement system 1 closes a check valve (not shown). Then, the biological information measurement system 1 stops the suction device 10 and retains the gas in the storage portion. Then, the biological information measurement system 1 causes the retained gas to contact the gas sensor 40a.

[0262] In the second measurement example, the biological information measurement system 1 stores the excrement gas for multiple detections in the sealing mechanism 50. In this case, the biological information measurement system 1 performs multiple measurements on the stored gas by the mechanism that retains the gas in the sealing mechanism 50 or the like. For example, in a case where the gas sensor detects an output of a prescribed value or more, the biological information measurement system 1 closes a check valve (not shown). Then, the biological information measurement system 1 stops the suction device 10 and retains the gas in the storage portion. Then, the biological information measurement system 1 causes the retained gas to contact the gas sensor 40a.

[0263] Thus, the biological information measuring system 1 is able to measure the excrement gas using the hydrogen sensor multiple times by leaving the excrement gas in the flow path, and is able to reduce the influence of the measurement deviation of the sensor by averaging the multiple signals. The process after the second calculation value is calculated is the same as the first measurement example, and thus detailed description is omitted.

[0264] <1-9-3. Third Measurement Example>

[0265] Next, the third measurement example will be described. Figure 16 Figure 16 is a view that shows the third measurement example of the gas sensor. Specifically, Figure 16 is a view that shows an outline of the third measurement example performed by the biological information measuring system 1 in which the gas detection device 20 is arranged in the sealing mechanism 50. Note that the same parts as the above will be appropriately omitted from the description.

[0266] In the third measurement example, the biological information measuring system 1 has the sealing mechanism 50. In the third measurement example, the sealing mechanism 50 houses the gas detection device 20. The biological information measuring system 1 in the third measurement example has the gas detection device 20 arranged in the sealing mechanism 50. The sealing mechanism 50 has a flow path that can be switched to be closed by a switching mechanism (for example, a switching valve or the like), but this will be described later. Figure 16 Figure 16 In the third measurement example, the biological information measuring system 1 uses the gas detection device 20 in the sealing mechanism 50 to measure the gas left in the sealing mechanism 50 multiple times. In this case, the biological information measuring system 1 acquires data multiple times from a state in which the sensor surface is filled with the gas and the sensor output has stabilized.

[0267]

[0268] Figure 16 The measurement MS13 in corresponds to the measurement of the gas sensor 40a. For example, the line LN13 in the measurement MS13 shows the measurement value (voltage value) of the gas sensor 40a, that is, the sensor output. The grid portion in the measurement MS13 corresponds to a part of the range in which the sensor output (power value) reaches a peak (maximum) due to the gas left in the sealing mechanism 50. For example, the biological information measuring system 1 performs the measurement process multiple times (three times in the example shown by the dotted circles in ) in the range in which the sensor output (power value) reaches the peak (maximum), and calculates the calculation values corresponding to the respective measurement processes. Figure 16

[0269] ​​​​In the third measurement example, the biological information measurement system 1 stores the excrement gas for a plurality of measurements in the closed mechanism 50. The biological information measurement system 1 leaves the excrement gas in the closed mechanism 50 in which the gas detection device 20 is housed, performs a plurality of measurements by the gas sensor 40a as a hydrogen sensor, acquires a plurality of calculation values, and performs an averaging process.

[0270] In this way, the biological information measurement system 1 calculates a second calculation value that is a statistical value of a plurality of calculation values obtained by performing a plurality of measurements of the gas in the closed mechanism 50 by the gas sensor 40a. The second calculation value is a statistical value of a plurality of calculation values obtained by performing a plurality of measurements of the gas in the closed mechanism 50 by the gas sensor 40a.

[0271] Thus, the biological information measurement system 1 is able to acquire a signal in a state in which the sensor output has stabilized by causing the excrement gas to be in contact with the hydrogen sensor for a long time, and is further able to further reduce the influence of measurement deviation of the gas sensor by performing an averaging process. The process after the second calculation value is calculated is the same as in the first measurement example, and thus detailed description is omitted.

[0272] <1-9-4. Fourth Measurement Example>

[0273] Next, the fourth measurement example will be described. Figure 17 The fourth measurement example will be described. Figure 17 is a view that shows the fourth measurement example of the gas sensor. Figure 17 is a view that shows an outline of the fourth measurement example performed by the biological information measurement system 1 having the same structure as that of the second measurement example shown in Figure 15 Figure 17 is a view that shows the fourth measurement example in which the gas left in the flow path between the gas detection device 20 and the suction device 10 is measured by the closed mechanism 50. Note that the same parts as those described above will be appropriately omitted from description.

[0274] Since the structure of the biological information measurement system 1 in the fourth measurement example is the same as that of the biological information measurement system 1 in the second measurement example, illustration and detailed description are omitted.

[0275] Figure 17 The measurement MS14 in the fourth measurement example corresponds to the measurement of the gas sensor 40a. For example, the line LN14 in the MS14 shows a measurement value (voltage value) of the gas sensor 40a, that is, a sensor output. For example, the biological information measurement system 1 performs a measurement process when the sensor output (power value) shown by the broken line o in the MS14 reaches a peak (maximum) value, respectively. Figure 17 Figure 17 ​​The biological information measuring system 1 calculates a calculation value corresponding to each measurement process. For example, the biological information measuring system 1 repeatedly brings the gas into contact with the sensor to acquire a plurality of data corresponding to the peak value of the sensor output.

[0276] In the fourth measurement example, to perform a plurality of measurements, the biological information measuring system 1 stores the excrement gas in the flow path between the gas detection device 20 and the suction device 10 by the sealing mechanism 50. The biological information measuring system 1 leaves the excrement gas in the flow path between the gas detection device 20 and the suction device 10, performs a plurality of measurements by the hydrogen sensor, that is, the gas sensor 40a, to acquire a plurality of calculation values and perform an averaging process. That is, the biological information measuring system 1 leaves the excrement gas in a place different from the inside of the gas detection device 20, repeatedly brings the gas into contact with the gas sensor 40a as the hydrogen sensor, performs a plurality of measurements by the gas sensor 40a, to acquire a plurality of calculation values and perform an averaging process.

[0277] In this way, the biological information measuring system 1 calculates a second calculation value that is a statistical value of a plurality of calculation values obtained by performing a plurality of measurements on the gas in the flow path. The second calculation value is a statistical value of a plurality of calculation values obtained by performing a plurality of measurements on the gas in the flow path.

[0278] Thus, the biological information measuring system 1 can reduce the influence of measurement errors by repeatedly measuring the stored excrement gas using the hydrogen sensor, acquiring a plurality of first calculation values, and performing an averaging process. As for the process after the second calculation value is calculated, the same as the first measurement example, detailed description is omitted.

[0279] <1-9-5. Fifth Measurement Example>

[0280] Next, the fifth measurement example will be described using Figure 18 The fifth measurement example will be described. Figure 18 is a diagram that shows the fifth measurement example of the gas sensor. Specifically, Figure 18 is a diagram that shows an outline of the fifth measurement example performed by the biological information measuring system 1 in which the gas detection device 20 provided with a third gas sensor, that is, the gas sensor 40c (provided as "gas detection device 20A"). Note that the same as the above, appropriate description will be omitted.

[0281] In the fifth measurement example, Figure 18 In the fifth measurement example, the biological information measuring system 1 has the gas detection device 20A provided with the gas sensor 40c. For example, the gas sensor 40c as the third gas sensor has higher sensitivity to hydrogen and lower sensitivity to odor gas than the gas sensor 40b. In the fifth measurement example, the gas sensor 40c can also be a hydrogen sensor.

[0282] In the fifth measurement example, the biological information measurement system 1 acquires values ​​(eg, calculated values) indicating the amount and concentration of hydrogen gas from the gas sensor 40a serving as a hydrogen gas sensor and the gas sensor 40c serving as a third gas sensor, and performs averaging processing.

[0283] The biological information measurement system 1 calculates a calculated value corresponding to hydrogen gas (also referred to as a "fourth calculated value") based on the detection results of the gas sensor 40c. For example, the biological information measurement system 1 uses equation (1) to calculate the fourth calculated value corresponding to hydrogen gas from the measurement value (voltage value) of the gas sensor 40c. The biological information measurement system 1 applies the fourth calculated value to the regression equation to calculate (estimate) the amount of hydrogen gas based on the measurement of the gas sensor 40c.

[0284] Figure 18 Measurement MS15 in the diagram corresponds to the measurements of gas sensor 40a and gas sensor 40c. For example, line LN151 in measurement MS15 represents the measurement value (voltage value), i.e., the sensor output, of gas sensor 40a. For example, line LN152 in measurement MS15 represents the measurement value (voltage value), i.e., the sensor output, of gas sensor 40c.

[0285] For example, the biological information measurement system 1 Figure 18 The measurement process is performed at the time point when the sensor output (power value) of the gas sensor 40a indicated by the dotted line ○ on the line LN151 in FIG. 1 reaches the peak (maximum), and the first calculated value corresponding to the measurement process is calculated. Figure 19 The measurement process is performed at the time when the sensor output (power value) of gas sensor 40c, indicated by the dashed circle on line LN152 in FIG1 , reaches its peak (maximum), and a fourth calculated value corresponding to the measurement process is calculated. For example, the biological information measurement system 1 acquires data corresponding to the peak values ​​of the hydrogen sensor and the third gas sensor.

[0286] In the fifth measurement example, the biological information measurement system 1 calculates a second calculated value using the first calculated value obtained based on the measurement of the gas sensor 40 a and the fourth calculated value obtained based on the measurement of the gas sensor 40 c .

[0287] In this manner, the biological information measurement system 1 calculates a second calculated value, which is a statistical value obtained using a plurality of calculated values ​​measured by the gas sensors 40a and 40c. The second calculated value is obtained based on the statistical value of the plurality of calculated values ​​measured by the gas sensors 40.

[0288] Thus, the biological information measurement system 1 is able to reduce individual difference bias and calculate a more accurate hydrogen amount by calculating values (e.g., calculated values, etc.) representing the hydrogen amount from among the plurality of gas sensors and performing averaging processing. As to the processing after the second calculated value is calculated, the same as in the first measurement example, a detailed explanation will be omitted.

[0289] <1-9-6. Sixth Measurement Example>

[0290] Next, the sixth measurement example will be described. The biological information measurement system 1 of the sixth measurement example differs from the biological information measurement system 1 of the fifth measurement example in that the gas detection device 20A has a gas sensor other than the hydrogen gas sensor as a third gas sensor, i.e., the gas sensor 40c. Note that, for the same parts as described above, an appropriate explanation will be omitted.

[0291] In the sixth measurement example, the biological information measurement system 1 has the gas detection device 20A that has the gas sensor 40c as a methane gas sensor different from the gas sensor 40a as a hydrogen gas sensor. For example, the gas sensor 40c as a methane gas sensor is easy to react with hydrogen and methane and is not easy to react with a malodorous gas. For example, the gas sensor 40c as a methane gas sensor is mounted in the gas detection device 20 in order to measure methane gas in the excrement gas.

[0292] Among them, there are fewer people who carry methane-producing bacteria, and the proportion of people whose excrement gas contains methane gas is low. For example, for people who do not produce methane gas, the hydrogen amount can be calculated using a methane gas sensor.

[0293] Therefore, in the sixth measurement example, in a case where a person who produces methane gas is the measurement target, the biological information measurement system 1 uses the gas sensor 40c as a methane gas sensor. In a case where it is determined that the user's excrement gas contains methane gas, the biological information measurement system 1 uses the gas sensor 40c as a sensor for detecting methane gas.

[0294] On the other hand, in a case where a person who does not produce methane gas is the measurement target, the biological information measurement system 1 uses the gas sensor 40c as a hydrogen gas measurement sensor. In a case where it is determined that the user's excrement gas does not contain methane gas, the biological information measurement system 1 uses the gas sensor 40c as a sensor for detecting hydrogen gas.

[0295] As described above, even if the gas sensor for the purpose of measuring other components is not used for that purpose, by converting it into a sensor for hydrogen gas measurement, the biological information measurement system 1 is able to further improve the measurement accuracy of the hydrogen gas sensor.

[0296] For example, in the case of calculating the fourth calculation value of the gas sensor 40c as a methane gas sensor, the biological information measurement system 1 can calculate the fourth calculation value by using a formula for a methane gas sensor instead of the above-described formulas (3), (5), (6) for a malodor gas. In this case, the calculation of the fourth calculation value is the same as the calculation of the second calculation value of the malodor gas except for the used formula, and thus detailed description is omitted.

[0297] <1-9-7. Seventh Measurement Example>

[0298] Next, the seventh measurement example will be described. Figure 19 Figure 19 is a diagram showing the seventh measurement example of the gas sensor. Figure 15 is a diagram showing an outline of the seventh measurement example performed by the biological information measurement system 1 having the same structure as any one of the first to sixth measurement examples. For example, the seventh measurement example is performed by the biological information measurement system 1 having the structure of the second measurement example shown in Figure 19 Needless to say, the same parts as the above-described contents will be appropriately omitted from the description.

[0299] Figure 19 The measurement MS16 in the line LN161 corresponds to the measurement of the gas sensor 40a and the gas sensor 40b. For example, the line LN161 in the measurement MS16 shows the measurement value (voltage value) of the gas sensor 40a, that is, the sensor output. For example, the line LN162 in the measurement MS16 shows the measurement value (voltage value) of the gas sensor 40b, that is, the sensor output. The reactivity of each gas sensor 40 is determined by an arbitrary mechanism. For example, the reactivity of each gas sensor 40 is set such that the peak value is 100% and the value before defecation is 0%.

[0300] For example, the measurement value TM11 on the line LN161 in the measurement MS11 shows the measurement value when the reactivity of the gas sensor 40a is the first level (for example, 30% of the peak value). Figure 19 For example, the measurement value TM12 on the line LN161 in the measurement MS12 shows the measurement value when the reactivity of the gas sensor 40a is the second level (for example, 50% of the peak value). Figure 19 For example, the measurement value TM13 on the line LN161 in the measurement MS13 shows the measurement value when the reactivity of the gas sensor 40a is the third level (for example, the peak value). Figure 19 For example, the measurement value TM13 on the line LN161 in the measurement MS13 shows the measurement value when the reactivity of the gas sensor 40a is the third level (for example, the peak value).

[0301] For example, the measurement value TM21 on the line LN162 in the measurement MS21 shows the measurement value when the reactivity of the gas sensor 40b is the first level (for example, 30% of the peak value). Figure 19 For example, the measurement value TM22 on the line LN162 in the measurement MS22 shows the measurement value when the reactivity of the gas sensor 40b is the second level (for example, 50% of the peak value). Figure 19 ​The measurement value TM22 on the line LN162 in FIG. 1 represents a measurement value when the responsiveness of the gas sensor 40 b is at the second level (eg, 50% of the peak value). Figure 19 The measurement value TM23 on the line LN162 in FIG. 1 represents the measurement value when the responsiveness of the gas sensor 40 b is at the third level (eg, peak value).

[0302] exist Figure 19 In the embodiment, the biometric system 1 uses the values ​​of the gas sensors 40 at the same time of reactivity to defecation gas as a set. For example, the biometric system 1 uses the measurement value TM11 of the gas sensor 40a and the measurement value TM21 of the gas sensor 40b, both of which have the same first-level reactivity, as a set.

[0303] In this case, the bio-information measurement system 1 calculates a first calculated value (set as "first calculated value FV71") and a third calculated value (set as "third calculated value TV71") based on the measured value TM11 and the measured value TM21. Then, the bio-information measurement system 1 calculates the amount of hydrogen (set as "hydrogen amount VL11") and the amount of odorous gas (set as "odorous gas amount VL21") based on the calculated first calculated value FV71 and the third calculated value TV71. Then, the bio-information measurement system 1 calculates a primary score (set as "primary score TS1") by finding the ratio of the calculated amount of hydrogen VL11 to the amount of odorous gas VL21.

[0304] Furthermore, the biometric system 1 uses the measurement value TM12 of gas sensor 40a and the measurement value TM22 of gas sensor 40b, both of which have a reactivity level of the second level, as a set. In this case, the biometric system 1 calculates a first calculated value FV72 and a third calculated value TV72 based on the measurement values ​​TM12 and TM22. Furthermore, based on the calculated first calculated value FV72 and third calculated value TV72, the biometric system 1 calculates the amount of hydrogen gas (referred to as "hydrogen gas amount VL12") and the amount of odorous gas (referred to as "odorous gas amount VL22"). Furthermore, the biometric system 1 calculates a primary score (referred to as "primary score TS2") by calculating the ratio of the calculated amount of hydrogen gas VL12 to the amount of odorous gas VL22.

[0305] Further, the biological information measuring system 1 uses the measured value TM13 of the gas sensor 40a and the measured value TM23 of the gas sensor 40b, both of which are the third level (peak) at which the reaction degree is equal, as a set. In this case, the biological information measuring system 1 calculates the first calculation value FV73 and the third calculation value TV73 on the basis of the measured value TM13 and the measured value TM23, and calculates the hydrogen gas amount (set as "hydrogen gas amount VL13") and the malodorous gas amount (set as "malodorous gas amount VL23") on the basis of the calculated first calculation value FV72 and the third calculation value TV72. Further, the biological information measuring system 1 calculates the primary score (set as "primary score TS3") by finding the ratio of the calculated hydrogen gas amount VL13 to the malodorous gas amount VL23.

[0306] Thus, the biological information measuring system 1 obtains a plurality of ratios of values based on the measurement of the hydrogen gas sensor and the measurement of the malodorous gas sensor. Then, the biological information measuring system 1 calculates the score by averaging the plurality of ratios (e.g., the primary scores) obtained. In this way, the biological information measuring system 1 can calculate the score by averaging the plurality of ratios of values based on the measurement of the hydrogen gas sensor and the measurement of the malodorous gas sensor. Figure 20 In the seventh measurement example, the biological information measuring system 1 calculates the average of the primary score TS1, the primary score TS2, and the primary score TS3 as the score.

[0307] As described above, in the seventh measurement example, the biological information measuring system 1 obtains a plurality of values based on the measurement of the hydrogen gas sensor and the measurement of the malodorous gas sensor at the same time, and performs the averaging process after calculating the ratio. The biological information measuring system 1 uses the score calculated using the first calculation value corresponding to hydrogen gas based on the detection result of the first gas sensor and the third calculation value to infer the health state of the user or information related to the health state. The biological information measuring system 1 calculates the score from the ratio of the value (e.g., the hydrogen gas amount) based on the first calculation value corresponding to the detection at the same time in the user's defecation and the value (the malodorous gas amount) based on the third calculation value.

[0308] As such, the biological information measuring system 1 can obtain the value derived from hydrogen gas and the value derived from malodorous gas at the same time even in one defecation behavior. The biological information measuring system 1 performs the averaging process on the ratio of the value (e.g., the hydrogen gas amount) based on the first calculation value and the value (the malodorous gas amount) based on the third calculation value, and calculates the ratio of the value based on the first calculation value and the value based on the third calculation value. As such, the biological information measuring system 1 calculates the score from the statistical value of the ratio of the values based on a plurality of calculation values.

[0309] The deviation of the score (e.g., the ratio of the amounts) is greatly affected by the deviation of the hydrogen gas sensor. Therefore, the biological information measuring system 1 performs the averaging process on the score (e.g., the ratio of the amounts), and as a result, can reduce the deviation derived from the hydrogen gas sensor.

[0310] <1-9-8. Structure and control example>

[0311] Next, an example of the structure and control will be described with respect to the above-described measurement example. Note that the structure and control of the biological information measurement system 1 described below is merely an example, and the biological information measurement system 1 can employ any structure and control as long as the above-described measurement can be performed.

[0312] <1-9-8-1. Structure and control corresponding to the third measurement example>

[0313] First, the biological information measurement system 1 is configured as shown in FIG. 17. Figure 20 The structure and control corresponding to the third measurement example will be described. Figure 20 FIG. 17 is a diagram showing an example of the structure and control corresponding to the third measurement example. Note that the same parts as those described above will be appropriately omitted from the description.

[0314] Figure 20 The device structure CN11 shown in FIG. 17 represents an example of the device structure of the biological information measurement system 1 that performs the third measurement example. Figure 20 The device structure CN11 is merely a diagram showing a part of the structure of the biological information measurement system 1 that performs the third measurement example. For example, the suction mechanism of the device structure CN11 corresponds to the suction device 10, the discharge portion corresponds to the pipe 12, and the sensor corresponds to the gas sensor 40. Further, for example, the switching valve, the flow path #1, the flow path #2, the storage portion, and the check valve are structures that the sealing mechanism 50 has.

[0315] In the third measurement example, the biological information measurement system 1 performs the processes shown in steps S31 to S35. Before step S31, the switching valve is set in a manner such that the gas in the basin portion flows in the direction of the flow path #1. The biological information measurement system 1 sucks the gas from the basin portion by the suction mechanism (step S31). When a sensor output value (for example, a voltage value) of a prescribed value or more is detected, the biological information measurement system 1 closes the check valve (step S32). Figure 20 After a prescribed time elapses, the biological information measurement system 1 switches the switching valve to the flow path #2 direction (directly to the discharge portion side) (step S33). After the sensor performs the measurement, the biological information measurement system 1 opens the check valve (step S34). The biological information measurement system 1 switches the switching valve to the flow path #1 direction (to the storage portion side) (step S35).

[0316] In this way, in the third measurement example, the biological information measurement system 1 performs the measurement of the sensor in a state in which the check valve is closed and the gas is stored.

[0317] Figures 21 to 23

[0318] ​​<1-9-8-2. Configuration and Control Corresponding to the Fourth Measurement Example>

[0319] Next, use Figure 21 , the structure and control corresponding to the fourth measurement example are explained. Figure 23 and Figure 21 1 is a diagram showing an example of a configuration and control corresponding to the fourth measurement example.

[0320] use Figure 21 , the structure and control for circulating gas and performing multiple measurements are explained. Figure 21 The device configuration CN12 shown shows an example of the device configuration of the biological information measurement system 1 that executes the fourth measurement example. Figure 21 To illustrate the structure and control, device configuration CN12 only partially illustrates the structure of the bio-information measurement system 1 performing the fourth measurement example. For example, the first suction mechanism of device configuration CN12 corresponds to suction device 10, the discharge unit corresponds to pipe 12, and the sensor corresponds to gas sensor 40. Furthermore, for example, the first switching valve, flow path #1, flow path #2, second suction mechanism, second switching valve, flow path #3, and flow path #4 are components of sealing mechanism 50. For example, the second suction mechanism has the same function as suction device 10 and can perform suction in a desired direction.

[0321] exist Figure 21 In the process, the biological information measurement system 1 performs the processing shown in steps S41 to S44. Before step S41, the first switching valve is set so that the gas in the basin flows in the direction of flow path #1, and the second switching valve is set so that the gas flows in the direction of flow path #3. The biological information measurement system 1 uses the first suction mechanism to attract gas from the basin (step S41). When a sensor output value (such as a voltage value) greater than a specified value is detected, the biological information measurement system 1 switches the first switching valve to the direction of flow path #2 (the side that flows directly to the discharge part) and switches the second switching valve to the direction of flow path #4 (the side of the flow that circulates in the sealing mechanism 50) (step S42).

[0322] The biological information measurement system 1 activates the second suction mechanism and measures the gas multiple times (step S43). After using the sensor to measure the sensor output multiple times, the biological information measurement system 1 restores the first switching valve and the second switching valve to their original state (step S44). Figure 21 In the embodiment, the biological information measurement system 1 switches the first switching valve so that the gas in the basin flows in the direction of the flow path #1, and switches the second switching valve so that the gas flows in the direction of the flow path #3.

[0323] Like this, in Figure 22In the biological information measurement system 1, the same gas circulates in the flow path and repeatedly measures the gas using the sensor.

[0324] use Figure 22 , the structure and control for taking out a small amount of stored gas and performing multiple measurements are explained. Figure 22 The device configuration CN13 shown shows an example of the device configuration of the biological information measurement system 1 that executes the fourth measurement example. Figure 22 To illustrate the structure and control, device configuration CN13 only partially illustrates the structure of the biological information measurement system 1 performing the fourth measurement example. For example, the first suction mechanism of device configuration CN13 corresponds to suction device 10, the discharge unit corresponds to pipe 12, and the sensor corresponds to gas sensor 40. Furthermore, for example, the switching valve, flow path #1, flow path #2, reservoir, check valve, and second suction mechanism are components of sealing mechanism 50.

[0325] exist Figure 22 In the process, the biological information measurement system 1 performs the processing shown in steps S51 to S54. Prior to step S51, the switching valve is set so that the gas in the basin flows in the direction of flow path #1. The biological information measurement system 1 uses the first suction mechanism to suck the gas from the basin (step S51). When a sensor output value (e.g., voltage) exceeding a predetermined value is detected, the biological information measurement system 1 closes the check valve (step S52).

[0326] After a predetermined period of time, the bio-information measurement system 1 switches the switching valve to the direction of flow path #2 (directly toward the discharge section), and retains the gas in the storage section (step S53). The bio-information measurement system 1 controls the opening or closing of the second suction mechanism and the check valve to allow the gas to flow toward the sensor (step S54). In this case, for example, while the sensor is measuring gas, the bio-information measurement system 1 opens the check valve and activates the second suction mechanism to discharge a portion of the gas in the storage section from the discharge section via the sensor. Alternatively, for example, while the sensor is suspending gas measurement, the bio-information measurement system 1 closes the check valve and stops the second suction mechanism, stopping the discharge of gas from the storage section from the discharge section.

[0327] Like this, in Figure 23 In the process, the biological information measurement system 1 retains the gas in the storage unit and periodically flows a predetermined amount of gas to the sensor.

[0328] use Figure 23 , the structure and control for performing multiple measurements by returning gas that has been measured once will be described. Figure 23 The device configuration CN14 shown shows an example of the device configuration of the biological information measurement system 1 that executes the fourth measurement example.Figure 23 The device structure CN14 shows only a part of the structure of the biological information measuring system 1 that performs the fourth measurement example. For example, the first suction mechanism of the device structure CN14 corresponds to the suction device 10, the discharge portion corresponds to the pipe 12, and the sensor corresponds to the gas sensor 40. Further, for example, the switching valve, the flow path #1, the flow path #2, the storage portion, the check valve, and the second suction mechanism are structures that the sealing mechanism 50 has.

[0329] In Figure 23 , the biological information measuring system 1 performs the processes shown in steps S61 to S65. Before step S61, the switching valve is set so that the gas in the basin portion flows in the direction of the flow path #1. The biological information measuring system 1 sucks the gas from the basin portion by the first suction mechanism (step S61). When a sensor output value (for example, a voltage value) of a prescribed value or more is detected, the biological information measuring system 1 closes the check valve (step S62).

[0330] After a prescribed time elapses, the biological information measuring system 1 switches the switching valve to the flow path #2 direction (directly to the discharge portion side) (step S63). The biological information measuring system 1 activates the second suction mechanism to return the measured gas to the sensor (step S64). Note that the flow path between the second suction mechanism and the storage portion can be shared, or a flow path from the second suction mechanism to the storage portion and a flow path from the storage portion to the second suction mechanism can be separately provided. After the repeated measurement, the biological information measuring system 1 opens the check valve and controls the switching valve to discharge the gas (step S65).

[0331] In this way, in Figure 24 , the biological information measuring system 1 leaves the gas in the storage portion and returns the detected gas to the sensor by the second suction mechanism.

[0332] <1-10. Second Process (Correction)>

[0333] In addition to the above first process, the biological information measuring system 1 can suppress the influence of the measurement deviation by any method. For example, in order to suppress the influence of the measurement deviation on the gas sensor, the biological information measuring system 1 performs the following second process: in a case where a value or the like obtained based on the measurement satisfies a prescribed condition, the value is corrected. In the second process, when the prescribed condition that the odor gas can not be correctly estimated is satisfied, the biological information measuring system 1 performs correction next. Specifically, when the odor gas can not be correctly estimated, the biological information measuring system 1 performs correction with at least one of the above-mentioned zeroth calculation value or the second calculation value or the third calculation value as a target.

[0334] Thus, the biological information measurement system 1 can correct the influence of suppressing the measurement bias. This is described below. Note that the same parts as those described in the first process and the like are appropriately omitted from the description.

[0335] <1-10-1. First correction>

[0336] First, an example in which the biological information measurement system 1 corrects the zeroth calculation value or the second calculation value is described as a first correction.

[0337] For example, the biological information measurement system 1 performs the first correction when a prescribed condition is satisfied. The biological information measurement system 1 performs the first correction when the first calculation value or the second calculation value is higher than a first threshold value, or the third calculation value is lower than a second threshold value that is smaller than the first threshold value. In this case, the biological information measurement system 1 performs the first correction when at least one of the correction conditions is satisfied, the correction conditions including a first condition in which the first calculation value or the second calculation value is higher than the first threshold value, and a second condition in which the third calculation value is lower than the second threshold value that is smaller than the first threshold value. Note that the first threshold value and the second threshold value are set to arbitrary values in accordance with the gas sensor 40 and the like. For example, the first threshold value and the second threshold value can be set for each biological information measurement system 1 (i.e., each device) in which the gas sensor 40 is mounted, or can be values that are commonly set.

[0338] For example, the biological information measurement system 1 performs the correction that reduces the second calculation value when at least one of the correction conditions is satisfied. The biological information measurement system 1 performs the first correction by multiplying a correction coefficient that is smaller than 1 when calculating the second calculation value from the first calculation value. In this case, the biological information measurement system 1 can perform either of correction mode #1 and correction mode #2.

[0339] In the case of performing correction mode #1, the biological information measurement system 1 multiplies a correction coefficient (e.g., a value smaller than 1) to the first calculation value to correct the first calculation value when at least one of the correction conditions is satisfied. In this case, the biological information measurement system 1 calculates the second calculation value using the calculated corrected first calculation value.

[0340] Further, in the case of performing correction mode #2, the biological information measurement system 1 multiplies a correction coefficient (e.g., a value smaller than 1) to the second calculation value to correct the second calculation value when at least one of the correction conditions is satisfied. In this case, the biological information measurement system 1 calculates the third calculation value using the calculated corrected second calculation value.

[0341] Note that the above correction is only an example, and the biological information measurement system 1 is not limited to performing a correction that reduces the second calculation value, and can perform a correction that increases the zeroth calculation value. Further, in a case where the second calculation value is higher than the zeroth calculation value, the biological information measurement system 1 can perform the first correction. In this case, the third condition that the second calculation value is higher than the zeroth calculation value can also be included in the correction condition.

[0342] As such, in the first correction, the other value used when calculating the third calculation value indicating the amount of odor gas is corrected as a correction target. Thereby, the biological information measurement system 1 appropriately corrects the third calculation value calculated based on the other value, and thus can appropriately calculate (estimate) the amount of odor gas. Therefore, the biological information measurement system 1 can appropriately perform the processing based on the gas measurement.

[0343] <1-10-2. Second Correction>

[0344] Note that the biological information measurement system 1 is not limited to the first correction, and can perform a second correction that corrects the third calculation value. In this case, the biological information measurement system 1 has a correction value that is set in advance as a value corresponding to odor gas, and in a case where the third calculation value is lower than the third threshold value, the third calculation value is replaced with the correction value as a correction.

[0345] Note that the third threshold value is set to an arbitrary value in accordance with the gas sensor 40 or the like. For example, the third threshold value can be set for each biological information measurement system 1 (i.e., each device) in which the gas sensor 40 is mounted, or can be a value that is commonly set.

[0346] Further, the correction value can be set to an arbitrary value. For example, the correction value can be a detection lower limit value of the gas sensor, or can be a minimum value of a calculation value based on data with reference to the amount of gas discharged from the human body.

[0347] As such, in the second correction, the third calculation value indicating the amount of odor gas itself is corrected as a correction target. Thereby, the biological information measurement system 1 appropriately corrects the third calculation value, and thus can appropriately calculate (estimate) the amount of odor gas. Therefore, the biological information measurement system 1 can appropriately perform the processing based on the gas measurement.

[0348] <1-11. Third Processing (Change of Information)

[0349] In addition to the first process and the second process described above, the biological information measuring system 1 can suppress the influence of the measurement bias by any method. For example, in order to suppress the influence of the measurement bias on the gas sensor, the biological information measuring system 1 executes a third process of changing the output information. In the third process, when a condition (also referred to as a "change condition") in which the ratio of the health-related gas to the odor gas can be inaccurate is satisfied, the biological information measuring system 1 changes the information and performs the output display. Specifically, in a case where at least one of the first calculation value, the second calculation value, and the third calculation value satisfies the change condition, the biological information measuring system 1 performs control to change the first information, which is the user's health status or the information related to the health status, which is output by the output mechanism.

[0350] Thus, the biological information measuring system 1 can suppress the influence of the measurement bias by changing the information provided to the user. This point will be described below. Note that the description will be appropriately omitted for portions that are the same as those described in the first process and the second process and the like.

[0351] <1-11-1. First Change>

[0352] First, the first change will be described. In a case where the change condition is satisfied, the biological information measuring system 1 executes the first change of changing the value included in the first information to a set value that is set in advance. The biological information measuring system 1 performs the first change in a case where the first calculation value or the second calculation value is higher than a first threshold value, or the third calculation value is lower than a second threshold value that is smaller than the first threshold value. In this case, in a case where at least one of the change conditions is satisfied, the biological information measuring system 1 performs the first change, the change conditions including a first condition in which the first calculation value or the second calculation value is higher than the first threshold value, and a second condition in which the third calculation value is lower than the second threshold value that is smaller than the first threshold value.

[0353] The biological information measuring system 1 executes the first change illustrated in FIG. 11. Figure 24 is a diagram indicating the first change of the information performed by the biological information measuring system. Figure 24 The content CT11 in FIG. 11 is information indicating a time-series change in the score based on the measurement of the user's excrement gas. Figure 24 The score SC1 in the content CT11 indicates the score before the change based on the measurement (also referred to as the "target measurement") corresponding to the date and time. In a case where any one of the values in the target measurement satisfies at least one of the change conditions, the biological information measuring system 1 performs the first change. In a case where it is determined that the value in the target measurement satisfies the change condition, the biological information measuring system 1 executes the first change.

[0354] In a case where the first change is performed in the third process, the biological information measuring system 1 performs the second change of changing the first information, which is the user's health status or the information related to the health status, which is output by the output mechanism.

[0355] Figure 24 ​In the example, the biometric system 1 determines that the value in the object measurement satisfies the change condition and changes the original data in the content CT11, that is, the score SC1. For example, the biometric system 1 changes the score SC1 to a changed score CS1 of a predetermined value. The changed score CS1 can be set to any value, which will be described later. Figure 25 By changing the score SC1 to the changed score CS1 , the biological information measurement system 1 can set the score corresponding to the target measurement to a value close to the average value (moving average value indicating a temporal change trend, etc.) indicated by the dotted line.

[0356] The biological information measurement system 1 outputs information including the changed score CS1 obtained by changing the score SC1 which is the original data ( Figure 25 The biometric measurement system 1 outputs (transmits) information including the changed score CS1 obtained by changing the original score SC1 to the display unit 300, which is a user terminal used by the user (also referred to as "user X") who is the subject of the measurement.

[0357] The display unit 300 used by the user X receives the information including the changed score CS1 output by the biometric system 1 and displays Figure 25 The information shown. Figure 25 : is a diagram showing an example of display of information after the biological information measurement system has been changed. Figure 26 As shown, the display unit 300 used by user X displays content CC11 including a modified score CS1 obtained by modifying the original score SC1. In this manner, the display unit 300 used by user X does not display the original score SC1, which is estimated to be significantly affected by measurement variation, but instead displays the modified score CS1, which is estimated to be more appropriate than score SC1, as alternative information. In this way, the biometric information measurement system 1 can modify the displayed information to a predetermined value.

[0358] As described above, the biological information measurement system 1 changes the information provided to the user through the first change, thereby suppressing the influence of measurement deviation. Therefore, the biological information measurement system 1 can appropriately execute the process based on gas measurement.

[0359] It should be noted that the changed information such as the value of the changed score CS1 can be set according to any information. Figure 26 Let me give you an example. Figure 26 This is a diagram showing an example of score correction by a biometrics measurement system. Figure 27 In the present invention, the changed information can be determined using hydrogen amount distribution information DD11 indicating the distribution of hydrogen amount discharged from the human body and odor gas amount distribution information DD12 indicating the distribution of odor gas amount discharged from the human body.

[0360] For example, the biological information measuring system 1 can calculate the score when the first calculated value is the prescribed value and the second calculated value is the prescribed value. For example, the biological information measuring system 1 can calculate the score based on the maximum / minimum amount (3σ of distribution, etc.) discharged from the human body.

[0361] For example, the biological information measuring system 1 can calculate the changed score CS1 using the function FC2. The function FC2 can use, as the changed score CS1, a value obtained by dividing the value obtained by adding 3δ to the average of the hydrogen gas amount calculated based on the hydrogen gas amount distribution information DD11, by the value obtained by subtracting 3δ from the average of the odor gas amount calculated based on the odor gas amount distribution information DD12.

[0362] <1-11-2. Second Change>

[0363] Note that the biological information measuring system 1 is not limited to the first change, and can change using any information. For example, the biological information measuring system 1 can perform the following second change: changing the information using past information of the user as the target. In this case, the biological information measuring system 1 stores the first information output based on the past measurement in the storage section 120. Specifically, the biological information measuring system 1 stores the history record information including the score calculated based on the past measurement in the storage section 120.

[0364] The biological information measuring system 1 performs the second change of the information based on the score calculated based on the past measurement stored in the storage section 120. In a case where at least one of the change conditions is satisfied, the biological information measuring system 1 performs the second change.

[0365] The biological information measuring system 1 performs Figure 27 the second change illustrated in FIG. 12. Figure 27 is a diagram indicating that the biological information measuring system performs the second change of the information. Figure 27 The content CT12 in

[0366] The score SC2 in the content CT12 indicates the score before the change based on the measurement of the defecation gas of the corresponding date and time (target measurement). In a case where any one of the values in the target measurement satisfies at least one of the change conditions, the biological information measuring system 1 performs the second change. In a case where it is determined that the value in the target measurement satisfies the change condition, the biological information measuring system 1 performs the second change.

[0367] In Figure 27In this case, the biological information measurement system 1 determines that the value in the measurement of the object satisfies the change condition, and changes the original data, i.e., the score SC2, in the content CT12. For example, in a case where it is determined that the value in the measurement of the object satisfies the change condition, the biological information measurement system 1 changes the score to a changed score CS2 that uses a value calculated using a plurality of scores corresponding to measurements before the measurement of the object. The changed score CS2 uses an average value of a plurality of scores corresponding to measurements closest to the measurement of the object. In this case, the biological information measurement system 1 can change the score to a changed score CS2 that uses a value calculated using a plurality of scores corresponding to measurements before the measurement of the object. Figure 25 In this case, the biological information measurement system 1 calculates the changed score CS2 using the score PS1 and the score PS2 closest to the measurement of the object.

[0368] Thus, by changing the information based on the past trend of the user (user X) who is the object of the measurement of the object, the biological information measurement system 1 can change the information to information that conforms to the past trend of the user X. For example, the score PS1 and the score PS2 are scores that do not satisfy the change condition and for which the original data is retained. For example, the biological information measurement system 1 outputs the scores that are not changed (not corrected) for data for which the change of the score PS1 and the score PS2 and the like is not performed.

[0369] The biological information measurement system 1 outputs information including the changed score CS2 that is changed from the original data, i.e., the score SC2. The biological information measurement system 1 outputs (transmits) the information including the changed score CS2 that is changed from the original data, i.e., the score SC2, to the user terminal, i.e., the display mechanism 300, used by the user (user X) who is the object of the measurement of the object. Note that, regarding the display of the information, the same applies as the content described in the Figure 28 The details are omitted because the same applies as the content described in the

[0370] As described above, the biological information measurement system 1 changes the information provided to the user by the second change, and thus can suppress the influence of the measurement bias. Thus, the biological information measurement system 1 can appropriately perform the processing based on the measurement of the gas.

[0371] As described above, the biological information measurement system 1 corrects the information displayed with reference to the past data. The biological information measurement system 1 displays the average value with reference to a plurality of times of data. The biological information measurement system 1 displays the average value with reference to a plurality of times of data, and weights the data close to the present time. Note that, the biological information measurement system 1 is not limited to the case where the average value of the last two times of data is used as described above, and can use arbitrary information. For example, the biological information measurement system 1 can use a weighted average value of the last three or more times of data. In this case, the biological information measurement system 1 can use a weighted average value in which a higher weight is given to data closer in time among the last three or more times of data. Further, the biological information measurement system 1 can not use information (changed score) that is changed in the past when calculating the average value.

[0372] <1-11-3. Third Change>

[0373] Note that the biological information measuring system 1 is not limited to the first change and the second change, and can be changed using any information. For example, the biological information measuring system 1 can perform a third change of changing information using information notified to the user. In this case, the biological information measuring system 1 outputs second information related to measurement accuracy when a prescribed condition is satisfied. The biological information measuring system 1 outputs third information related to measurement error when a prescribed condition is satisfied.

[0374] The biological information measuring system 1 performs the third change when at least one of the change conditions is satisfied. The biological information measuring system 1 performs the third change illustrated in FIG. 13. Figure 28 Figure 28 is a diagram indicating that the biological information measuring system performs the third change of information. Figure 28 The content CT13 in Figure 28 is information indicating a time-series change in a score obtained based on the measurement of the defecation gas of the user.

[0375] The score SC3 in the content CT13 indicates a pre-change score obtained based on the measurement (target measurement) of the corresponding date and time. The biological information measuring system 1 performs the third change when at least one of the values in the target measurement satisfies at least one of the change conditions. The biological information measuring system 1 performs the third change when it is determined that the values in the target measurement satisfy the change conditions.

[0376] In

[0376] , the biological information measuring system 1 determines that the values in the target measurement satisfy the change conditions, and adds information INF1 to the content CT13. For example, the biological information measuring system 1 adds second information indicating that attention should be paid to the value calculated by the target measurement to the content CT13 when it is determined that the values in the target measurement satisfy the change conditions. The biological information measuring system 1 adds information INF1 including information indicating that the measurement accuracy can be poor to the content CT13. The biological information measuring system 1 adds information INF1 including third information indicating that it can be a measurement error to the content CT13. Figure 25 The biological information measuring system 1 outputs the content CT13 to which the information INF1 including the second information related to the measurement accuracy and the third information related to the measurement error is added. The biological information measuring system 1 outputs (transmits) the content CT13 to which the information INF1 is added to the user terminal, i.e., the display mechanism 300, used by the user (user X) who is the target of the target measurement, the information INF1 being used to notify the user of a possible problem in the measurement of the score SC3 of the target measurement. Note that, regarding the display of information, the same applies to the first change and the second change.

[0377] ​ ​​The same content as described in the above embodiments and modified examples is described in the above embodiments and modified examples, and detailed description is omitted.

[0378] As described above, the biological information measuring system 1 changes information provided to the user by the third change, and thereby can suppress the influence of the measurement bias. Thus, the biological information measuring system 1 can appropriately perform the process based on the gas measurement.

[0379] Note that the biological information measuring system 1 can make the third change in a case where a condition other than the above change condition is satisfied. For example, the biological information measuring system 1 can make the following third change: the information INF1 is added in the content CT13 to inform that the measurement can not be correctly performed in a case where there is a difficulty in the measurement itself or the like.

[0380] Note that the above embodiments and modified examples can be appropriately combined within a range where the process contents do not conflict.

[0381] Further effects and modified examples can be easily deduced by those skilled in the art. Thus, the present application is not limited to the specific details and representative embodiments shown and described above. Therefore, various modifications can be made without departing from the spirit or scope of the general inventive concept defined by the appended claims and their equivalents.

[0382] With respect to the above embodiments and modified examples, the following structure can be employed, but is not limited to the following structure.

[0383] (1) A biological information measuring system that measures biological information of a user of a toilet based on a defecation gas discharged into a bowl of a toilet bowl provided in the toilet, characterized by comprising:

[0384] The biological information measuring system has:

[0385] a gas detection device that includes a first gas sensor that reacts with hydrogen contained in a gas and a second gas sensor that reacts with a malodor gas containing a sulfur component and hydrogen; and

[0386] a control device that controls the gas detection device,

[0387] The control device is configured to:

[0388] calculate a second calculation value of the second gas sensor corresponding to hydrogen based on a plurality of calculation values corresponding to hydrogen contained in a gas,

[0389] calculate a third calculation value corresponding to the malodor gas based on a detection result of the second gas sensor and the second calculation value,

[0390] the biological information measurement system estimates a health state of the user or information related to the health state based on the third calculation value,

[0391] The plurality of calculation values include a first calculation value corresponding to hydrogen, which is obtained based on a detection result of the first gas sensor.

[0392] (2) The biological information measurement system according to (1), characterized in that

[0393] The biological information measurement system has:

[0394] a suction device that suctions gas in the basin; and

[0395] a sealing mechanism that leaves the gas suctioned by the suction device in a sealed space,

[0396] The second calculation value is a statistical value of the plurality of calculation values obtained by the first gas sensor measuring the gas in the sealed space multiple times.

[0397] (3) The biological information measurement system according to (2), characterized in that

[0398] The sealing mechanism has a storage portion that stores the gas suctioned by the suction device,

[0399] The second calculation value is a statistical value of the plurality of calculation values obtained by measuring the gas in the storage portion multiple times.

[0400] (4) The biological information measurement system according to (2), characterized in that

[0401] The sealing mechanism has a flow path that can be switched to a closed flow path by a switching mechanism,

[0402] The second calculation value is a statistical value of the plurality of calculation values obtained by measuring the gas in the flow path multiple times.

[0403] (5) The biological information measurement system according to any one of (1) to (4), characterized in that

[0404] The biological information measurement system has a third gas sensor that has higher sensitivity to hydrogen and lower sensitivity to the odor gas than the second gas sensor,

[0405] The plurality of calculation values include a fourth calculation value corresponding to hydrogen, which is obtained based on the first calculation value and a detection result of the third gas sensor.

[0406] (6) The biological information measurement system according to (5), characterized in that,

[0407] the third gas sensor is a gas sensor that reacts with methane gas,

[0408] the control device is configured to

[0409] in a case where it is determined that the user's excrement gas contains methane gas, use the third gas sensor as a sensor for detecting the methane gas,

[0410] in a case where it is determined that the user's excrement gas does not contain methane gas, use the third gas sensor as a sensor for detecting the hydrogen gas.

[0411] (7) A biological information measuring system that measures biological information of a user of a toilet based on excrement gas discharged into a bowl of a toilet bowl provided in the toilet, characterized by comprising:

[0412] the biological information measuring system comprises:

[0413] a gas detection device that includes a first gas sensor that reacts with hydrogen gas contained in a gas, and a second gas sensor that reacts with a malodorous gas containing a sulfur component and hydrogen gas; and

[0414] a control device that controls the gas detection device,

[0415] the control device is configured to

[0416] calculate a second calculation value of the second gas sensor corresponding to hydrogen gas based on a plurality of calculation values corresponding to hydrogen gas contained in a gas,

[0417] calculate a third calculation value corresponding to the malodorous gas based on a detection result of the second gas sensor and the second calculation value,

[0418] the biological information measuring system uses a score calculated based on the third calculation value to estimate a health state of the user or information related to the health state,

[0419] calculate the score based on a ratio of a value obtained based on a first calculation value corresponding to hydrogen gas obtained from a detection result of the first gas sensor and a value obtained based on the third calculation value, corresponding to detection at the same time as the user's excretion.

[0420] (8) A toilet seat device that measures biological information of a user of a toilet based on excrement gas discharged into a bowl of a toilet bowl provided in the toilet, characterized by comprising:

[0421] the toilet seat device comprises:

[0422] a gas detection device including: a first gas sensor that reacts with hydrogen contained in a gas; and a second gas sensor that reacts with a malodorous gas containing a sulfur component and hydrogen; and

[0423] a control device that controls the gas detection device,

[0424] the control device is configured to,

[0425] calculate a second calculation value of the second gas sensor corresponding to hydrogen based on a plurality of calculation values corresponding to hydrogen contained in a gas,

[0426] calculate a third calculation value corresponding to the malodorous gas based on a detection result of the second gas sensor and the second calculation value,

[0427] the toilet device estimates a health state of the user or information related to the health state based on the third calculation value,

[0428] the plurality of calculation values include a first calculation value corresponding to hydrogen based on a detection result of the first gas sensor.

[0429] (9) A toilet device that measures biological information of a user of a bathroom based on a defecation gas discharged into a bowl of a toilet provided in the bathroom, characterized by,

[0430] the toilet device has:

[0431] a gas detection device including: a first gas sensor that reacts with hydrogen contained in a gas; and a second gas sensor that reacts with a malodorous gas containing a sulfur component and hydrogen; and

[0432] a control device that controls the gas detection device,

[0433] the control device is configured to,

[0434] calculate a second calculation value of the second gas sensor corresponding to hydrogen based on a plurality of calculation values corresponding to hydrogen contained in a gas,

[0435] calculate a third calculation value corresponding to the malodorous gas based on a detection result of the second gas sensor and the second calculation value,

[0436] the toilet device estimates a health state of the user or information related to the health state using a score calculated based on the third calculation value,

[0437] The score is calculated by the ratio of a value obtained based on a first calculated value corresponding to hydrogen gas obtained according to the detection result of the first gas sensor and corresponding to the detection at the same time during the user's defecation, to a value obtained based on the third calculated value.

[0438] Explanation of symbols:

[0439] 1Biological information measurement system

[0440] 2 toilet seats

[0441] 3 Main body

[0442] 4. Measuring device

[0443] 5 toilet seats

[0444] 6. Clean the nozzle

[0445] 7 toilet

[0446] 8. Pelvis

[0447] 9 Toilet lid

[0448] 10 Suction device

[0449] 20Gas detection device

[0450] 40 gas sensors

[0451] 100 control devices

[0452] 110 Communications Department

[0453] 120 Storage Department

[0454] 130 Control Department

[0455] 131 Acquisition Department

[0456] 132 Processing Department

[0457] 133 output unit

[0458] 200 Presumptive Institutions

[0459] R bathroom.

Claims

1. A biological information measurement system for measuring biological information of a toilet user based on defecation gas discharged into a toilet bowl provided in the toilet, characterized in that: The biological information measurement system comprises: A gas detection device comprising: a first gas sensor that reacts with hydrogen contained in the gas; and a second gas sensor that reacts with odorous gas containing sulfur components and hydrogen; and a control device that controls the gas detection device, The control device is configured as follows: calculating a second calculated value corresponding to hydrogen gas of the second gas sensor based on a plurality of calculated values ​​corresponding to hydrogen gas contained in the gas, Based on the detection result of the second gas sensor and the second calculated value, a third calculated value corresponding to the odorous gas is calculated, The biometric information measurement system estimates the health status of the user or information related to the health status based on the third calculated value, The plurality of calculated values ​​include a first calculated value corresponding to hydrogen gas that is obtained based on a detection result of the first gas sensor.

2. The biological information measurement system according to claim 1, wherein The biological information measurement system comprises: a suction device that draws gas from the basin; and A sealing mechanism that retains the gas sucked by the suction device in a closed space, The second calculated value is a statistical value of the plurality of calculated values ​​obtained by measuring the gas in the enclosed space a plurality of times by the first gas sensor.

3. The biological information measurement system according to claim 2, wherein: The sealing mechanism includes a storage portion for storing the gas sucked by the suction device. The second calculated value is a statistical value of the plurality of calculated values ​​obtained by measuring the gas in the storage unit a plurality of times.

4. The biological information measurement system according to claim 2, wherein: The sealing mechanism has a flow path, which can be switched to a closed flow path by a switch mechanism. The second calculated value is a statistical value of the plurality of calculated values ​​obtained by measuring the gas in the flow path a plurality of times.

5. The biological information measurement system according to any one of claims 1 to 4, characterized in that The biological information measurement system includes a third gas sensor having a higher sensitivity to hydrogen gas and a lower sensitivity to the odor gas than the second gas sensor. The plurality of calculated values ​​include a fourth calculated value corresponding to hydrogen gas obtained based on the first calculated value and a detection result of the third gas sensor.

6. The biological information measurement system according to claim 5, characterized in that The third gas sensor is a gas sensor that reacts with methane gas. The control device is configured as follows: When it is determined that the defecation gas of the user contains methane gas, the third gas sensor is used as a sensor for detecting the methane gas. When it is determined that the defecation gas of the user does not contain methane gas, the third gas sensor is used as a sensor for detecting the hydrogen gas.

7. A biological information measurement system for measuring biological information of a toilet user based on defecation gas discharged into a toilet bowl provided in the toilet, characterized in that: The biological information measurement system comprises: A gas detection device comprising: a first gas sensor that reacts with hydrogen contained in the gas; and a second gas sensor that reacts with odorous gas containing sulfur components and hydrogen; and a control device that controls the gas detection device, The control device is configured as follows: calculating a second calculated value corresponding to hydrogen gas of the second gas sensor based on a plurality of calculated values ​​corresponding to hydrogen gas contained in the gas, Based on the detection result of the second gas sensor and the second calculated value, a third calculated value corresponding to the odorous gas is calculated, The biometric information measurement system estimates the health status of the user or information related to the health status using the score calculated based on the third calculated value. The score is calculated by the ratio of a value obtained based on a first calculated value corresponding to hydrogen gas obtained according to the detection result of the first gas sensor and corresponding to the detection at the same time during the user's defecation, to a value obtained based on the third calculated value.

8. A toilet seat device that measures biological information of a toilet user based on defecation gas discharged into a toilet bowl provided in the toilet, characterized in that: The toilet seat device comprises: A gas detection device comprising: a first gas sensor that reacts with hydrogen contained in the gas; and a second gas sensor that reacts with odorous gas containing sulfur components and hydrogen; and a control device that controls the gas detection device, The control device is configured as follows: calculating a second calculated value corresponding to hydrogen gas of the second gas sensor based on a plurality of calculated values ​​corresponding to hydrogen gas contained in the gas, Based on the detection result of the second gas sensor and the second calculated value, a third calculated value corresponding to the odorous gas is calculated, The toilet seat device estimates the health status of the user or information related to the health status based on the third calculated value, The plurality of calculated values ​​include a first calculated value corresponding to hydrogen gas that is obtained based on a detection result of the first gas sensor.

9. A toilet seat device that measures biological information of a toilet user based on defecation gas discharged into a toilet bowl provided in the toilet, characterized in that: The toilet seat device comprises: A gas detection device comprising: a first gas sensor that reacts with hydrogen contained in the gas; and a second gas sensor that reacts with odorous gas containing sulfur components and hydrogen; and a control device that controls the gas detection device, The control device is configured as follows: calculating a second calculated value corresponding to hydrogen gas of the second gas sensor based on a plurality of calculated values ​​corresponding to hydrogen gas contained in the gas, Based on the detection result of the second gas sensor and the second calculated value, a third calculated value corresponding to the odorous gas is calculated, The toilet seat device estimates the health status of the user or information related to the health status using the score calculated based on the third calculated value, The score is calculated by the ratio of a value obtained based on a first calculated value corresponding to hydrogen gas obtained according to the detection result of the first gas sensor and corresponding to the detection at the same time during the user's defecation, to a value obtained based on the third calculated value.

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