Biological information measurement system

Abstract

To enable appropriate measurement of gas.SOLUTION: A biological information measurement system measures biological information of a user of a toilet room on the basis of a fecal gas discharged into a bowl of a toilet bowl installed in the toilet room. The biological information measurement system includes: a suction device that sucks gaseous matter in the bowl where the user of the toilet room has discharged the fecal gas; a gas flow passage through which the sucked gas passes by the suction device; a gas detection device including a gas sensor that reacts with the gas contained in the gaseous matter passing through the gas flow passage; a control device that controls the suction device and the gas detection device; and a pressure loss generation portion that increases a pressure loss, which is generated when the gaseous matter passes, on a downstream side of an arrangement position of the gas sensor with respect to a traveling direction of the gaseous matter passing through the gas flow passage.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The disclosed embodiments relate to a biological information measuring system. [Background technology]

[0002] Conventionally, there has been known a biological information measuring system that uses a gas sensor to detect fecal gas emitted when a toilet user excretes feces, and measures the intestinal condition of the user (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-315836 A [Patent Document 2] JP 2016-145806 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is room for improvement in the above-mentioned conventional technology. For example, when gas reaches the gas sensor with a concentration gradient, the concentration may suddenly increase or decrease, causing a situation in which the resolution of the gas sensor cannot keep up. In such a situation, the measurement accuracy of the gas sensor decreases, making it difficult to properly measure the gas, so it is desired to enable proper measurement of the gas. To address this issue, there is room for improvement in the arrangement of each component in the flow path that allows gas to flow in from the bowl of the toilet, detects the flowing gas by the gas sensor, and then causes it to flow out.

[0005] An object of the disclosed embodiments is to provide a vital sign measurement system that can enable appropriate measurement of a gas. [Means for solving the problem]

[0006] A vital information measuring system according to one aspect of the embodiment is a vital information measuring system that measures the vital information of a user of a toilet room based on defecation gas discharged into a bowl of a toilet bowl installed in the toilet room, and is characterized in having an suction device that sucks in gas in the bowl from which the defecation gas is discharged by the user of the toilet room, a gas flow path through which the gas sucked in by the suction device passes, a gas detection device having a gas sensor that reacts to gas contained in the gas passing through the gas flow path, a control device that controls the suction device and the gas detection device, and a pressure loss generating unit that causes a higher pressure loss to occur when the gas passes downstream of the location of the gas sensor in the direction of travel of the gas passing through the gas flow path.

[0007] According to the biological information measuring system according to one aspect of the embodiment, a pressure loss is generated downstream of the gas sensor by the action of the pressure loss generating unit, and while the gas is brought into contact with the sensor, a gas with a uniform concentration gradient can be brought into contact with the sensor by generating a turbulent flow downstream based on the pressure loss. Therefore, the biological information measuring system can appropriately measure the gas.

[0008] Research by the inventors has revealed that the change over time in the ratio of odorless gas composed of hydrogen, methane, and carbon dioxide, and foul-smelling gas composed of hydrogen sulfide and methyl mercaptan, contained in the fart (defecation gas) emitted during defecation, indirectly captures the change over time in the intestinal environment. It is known that the intestinal environment changes depending on the type of food and the amount of exercise. Therefore, in order to correctly estimate the state, it is important to measure the components of the defecation gas more accurately, and the inventors have evolved them by devising hardware. The suction device described in Patent Document 2 makes it possible to supply more defecation gas to the gas sensor while preventing the defecation gas from diffusing outside the bowl. On the other hand, it is known that the defecation gas diffused in the bowl has a concentration gradient, and when the defecation gas is suctioned in this state, the resolution of the gas sensor cannot keep up with the concentration gradient, and there remains a problem that the peak value cannot be accurately read (it is difficult to obtain an accurate sensor signal). Since the concentration gradient changes depending on the circumstances during defecation, for example, it is difficult to deal with it by estimation or correction, and it is considered desirable to have the gas sensor come into contact with the gas in a homogenized state. For example, if a filter that generates a pressure loss is provided upstream of the gas sensor and the defecation gas can be retained, homogenized defecation gas can reach the sensor. However, there are problems in that the amount of defecation gas sucked in is significantly reduced contrary to the intention of the suction device, and the defecation gas components are adsorbed to the filter or flow path, causing a change in concentration, making it impossible to detect the amount of defecation gas more accurately.

[0009] Therefore, in a bioinformation measuring system according to one aspect of the embodiment, a pressure loss generating unit is arranged so that the pressure loss generated when the gas passes through is higher downstream of the location of the gas sensor in the direction of travel of the gas passing through the gas flow path, i.e., by arranging the pressure loss generating unit on the downstream side, the above problem can be solved and appropriate measurement of the gas can be made possible.

[0010] In one aspect of the embodiment, the biological information measuring system is characterized in that the pressure loss is maximum at a location in the gas flow path where the pressure loss generating unit is disposed.

[0011] According to the biological information measuring system of one aspect of the embodiment, by increasing the pressure loss occurring downstream compared to the pressure loss occurring when the fecal gas passes through the gas sensor, gas can be supplied to the sensor quickly, and while particle adhesion to the filter and flow path upstream of the sensor is suppressed, the concentration gradient can be made more uniform by generating turbulence downstream based on the pressure loss, etc. Therefore, the biological information measuring system can make it possible to appropriately measure the gas.

[0012] In the biological information measuring system according to one aspect of the embodiment, the pressure loss generating unit generates a pressure loss greater than that at a location where the gas sensor is disposed.

[0013] According to the biological information measuring system of one aspect of the embodiment, by increasing the pressure loss occurring downstream compared to the pressure loss occurring when the fecal gas passes through the gas sensor, gas can be supplied to the sensor quickly, and while particle adhesion to the filter and flow path upstream of the sensor is suppressed, the concentration gradient can be made more uniform by generating turbulence downstream based on the pressure loss, etc. Therefore, the biological information measuring system can make it possible to appropriately measure the gas.

[0014] The bioinformation measuring system according to one aspect of the embodiment is characterized in that it further has, in the gas flow path, a concentration gradient adjustment section upstream of the location where the gas sensor is arranged, which generates a pressure loss smaller than that of the pressure loss generating section.

[0015] According to the biological information measuring system according to one aspect of the embodiment, the concentration gradient adjusting unit disposed upstream generates a smaller pressure loss than the pressure loss generating unit, and the air in the toilet bowl is thoroughly collected, so that the gas can be supplied to the sensor with a uniform concentration gradient while flowing in without excessive retention at the inlet and without excessive particle adhesion. Therefore, the biological information measuring system can enable appropriate measurement of the gas.

[0016] In the biological information measuring system according to one aspect of the embodiment, the pressure loss generating portion has a surface area larger than that of the gas sensor.

[0017] According to the biological information measurement system according to one aspect of the embodiment, the surface area is increased to generate a pressure loss and generate a turbulent flow, thereby enabling the biological information measurement system to appropriately measure the gas.

[0018] In a biological information measuring system according to one aspect of the embodiment, the pressure loss generating portion has a larger surface area than the concentration gradient adjusting portion.

[0019] According to the biological information measurement system according to one aspect of the embodiment, the pressure loss generating unit has a surface area larger than that of the concentration gradient adjusting unit, and thus the pressure loss generating unit can generate a turbulent flow. Therefore, the biological information measurement system can appropriately measure the gas.

[0020] In one aspect of the embodiment, the bioinformation measuring system is characterized in that the suction device is positioned upstream of the gas sensor and mixes the fecal gas with the mixed gas in the bowl and supplies it to the gas sensor.

[0021] According to the biological information measuring system according to one aspect of the embodiment, the gas can be agitated and supplied to the sensor by the suction device, so that the concentration gradient can be made uniform and the gas can be supplied to the sensor. Therefore, the biological information measuring system can appropriately measure the gas.

[0022] In the biological information measuring system according to one aspect of the embodiment, the pressure loss generating unit has a deodorizing function and is disposed at the most downstream position of the gas flow path.

[0023] According to the biological information measuring system according to one aspect of the embodiment, the pressure loss generating unit has both a deodorizing function and a function of generating pressure loss, and is disposed at the most downstream of the gas flow path, so that the gas that has been appropriately deodorized can be discharged to the outside while the concentration gradient is made uniform and supplied to the sensor. Therefore, the biological information measuring system can appropriately measure the gas. Effect of the Invention

[0024] According to an aspect of an embodiment, proper measurement of gas may be enabled. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a perspective view showing an example of the configuration of a toilet room according to an embodiment. [Diagram 2] FIG. 2 is a plan view showing an example of the configuration of the measurement device according to the embodiment. [Diagram 3] FIG. 3 is a diagram illustrating an example of an overall outline of the biological information measuring system according to the embodiment. [Figure 4] FIG. 4 is a diagram showing an example of the relationship between the user's actions and the system's operations. [Diagram 5] FIG. 5 is a block diagram showing an example of the configuration of a toilet seat device according to an embodiment. [Figure 6] FIG. 6 is a block diagram illustrating an example of the configuration of the control device according to the embodiment. [Figure 7] FIG. 7 is a diagram illustrating an example of the configuration of a gas sensor. [Figure 8] FIG. 8 is a diagram showing an example of the influence of a concentration gradient on measurement. [Figure 9] FIG. 9 is a diagram illustrating an example of a first configuration according to the embodiment. [Figure 10] FIG. 10 is a diagram showing an example of turbulence generation in the first configuration. [Figure 11] FIG. 11 is a diagram showing an example of turbulence generation in the first configuration. [Figure 12]FIG. 12 is a diagram showing another example of the first configuration according to the embodiment. [Figure 13] FIG. 13 is a diagram illustrating an example of the second configuration according to the embodiment. [Figure 14] FIG. 14 is a diagram showing an example of turbulence generation in the second configuration. [Figure 15] FIG. 15 is a diagram showing an example of turbulence generation in the second configuration. [Figure 16] FIG. 16 is a diagram showing another example of the second configuration according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an embodiment of the biological information measuring system disclosed in the present application will be described in detail with reference to the attached drawings. Note that the present invention is not limited to the following embodiment. In the present application, a gas derived from intestinal fermentation and indicating a high level of health is called a healthy gas, and a gas derived from intestinal putrefaction and indicating a low level of health is called an odorous gas.

[0027] For example, the health gas is a gas produced by fermentation by beneficial bacteria in the intestine. For example, the health gas may be a gas derived from intestinal fermentation and increases as the health of the intestine increases. Specific examples of the health gas include hydrogen, carbon dioxide, acetic acid, methane, ethanol, water, etc.

[0028] For example, the odorous gas is a gas produced by fermentation caused by harmful bacteria in the intestines. For example, the odorous gas may be a gas containing sulfur components in defecation gas. Examples of odorous gas include ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, indole, and skatole. Note that the defecation gas referred to here is a gas that comes out of the intestines, and includes, for example, gas that comes out at the same time as defecation and gas that is not excreted at the same time as defecation.

[0029] <1. Embodiment> Below, an overview of the toilet room R, which is a gas collection location, and the vital information measurement system 1 will be described, and then various processes executed by the vital information measurement system 1 and the configuration for executing those processes will be described.

[0030] <1-1. Example of toilet room configuration> First, the configuration of a biological information measuring system according to an embodiment will be described with reference to Fig. 1. Fig. 1 is a perspective view showing an example of the configuration of a biological information measuring system according to an embodiment. In Fig. 1, a toilet seat 5 and a toilet lid 9 are shown in a see-through state in order to illustrate the configuration of a measuring device 4.

[0031] 1, in a toilet room R, a toilet bowl 7 is installed on a floor surface F. In the following, the direction facing the space of the toilet room R from the floor surface F may be described as "up." In the toilet room R, components of a vital information measuring system 1, such as a measuring device 4 that detects gas including a suction device 10 and a gas detection device 20, are arranged.

[0032] The toilet bowl 7 is a toilet bowl, and has a bowl portion 8 formed therein. The bowl portion 8 has a downwardly concave shape, and is the portion that receives the user's excrement. The toilet bowl 7 is not limited to a floor-standing type as shown in the figure, and may be of any type, such as a wall-mounted type, as long as the vital information measurement system 1 is applicable. The toilet bowl 7 is provided with a rim portion around the entire periphery of the edge of the opening facing the bowl portion 8. In the toilet room R, for example, a flush water tank that stores flush water may be installed near the toilet bowl 7, or a so-called tankless type in which no flush water tank is installed may be used.

[0033] For example, when a user operates a flushing operation unit (not shown) for flushing provided in the toilet room R, a toilet flush is performed by supplying flush water to the bowl portion 8 of the toilet 7. The flushing operation unit may be an operation lever, or a touch operation on a toilet flushing object displayed on the operation device 30. Note that the flushing operation unit is not limited to one that causes the toilet flush to be performed manually by the user, such as an operation lever, but may also be one that causes the toilet flush to be performed by human body detection by a sensor that detects the user, such as a seating sensor.

[0034] The toilet seat device 2 is attached to the top of a toilet bowl 7, and includes a main body 3, a measuring device 4, a toilet seat 5, and a cleaning nozzle 6. The toilet seat device 2 is placed on top of the toilet bowl 7, which is formed with a bowl portion 8 that receives excrement. The toilet seat device 2 is placed on top of the toilet bowl 7 so that the cleaning nozzle 6 advances into the bowl portion 8 before spraying cleaning water. The toilet seat device 2 may be attached detachably to the toilet bowl 7, or may be attached so as to be integrated with the toilet bowl 7.

[0035] The toilet seat device 2, by using the measuring device 4 and other components, measures the biological information of a user of the toilet room R based on the defecation gas discharged into a bowl portion 8 of a toilet 7 installed in the toilet room R. The measuring device 4 has a suction device 10 and a gas detection device 20. The measuring device 4 will be described in detail with reference to FIG. 2.

[0036] As shown in FIG. 1, the toilet seat 5 is formed in an annular shape and is disposed along the edge (rim portion) of the bowl portion 8 in a position overlapping the opening of the toilet bowl 7. A user sits on the toilet seat 5. The toilet seat 5 functions as a seating portion that supports the buttocks of the seated user. In addition, a toilet lid 9 is attached to the toilet seat apparatus 2 as necessary, and the toilet seat apparatus 2 does not necessarily have to have a toilet lid 9.

[0037] The cleaning nozzle 6 is a nozzle for spraying water for cleaning. The cleaning nozzle 6 is configured to be movable forward and backward with respect to the housing of the main body 3 by being driven by a driving source such as an electric motor (such as the nozzle motor 61 in FIG. 5). The cleaning nozzle 6 is also connected to a water source such as a water pipe (not shown). When the cleaning nozzle 6 is in an advanced position (also referred to as the "advanced position") with respect to the housing of the main body 3 as shown in FIG. 1, it sprays water from the water source onto the user's body to clean the private parts.

[0038] 1 shows the cleaning nozzle 6 in the advanced position. The cleaning nozzle 6 may also be used to clean the inside of the toilet bowl 7 (bowl portion 8, etc.). The cleaning nozzle 6 may be used switchably between a private parts cleaning mode for cleaning the private parts of the user and a toilet bowl cleaning mode for spraying water inside the toilet bowl 7. For example, the cleaning nozzle 6 may be used switchably between the private parts cleaning mode and the toilet bowl cleaning mode according to the control by the toilet seat device 2.

[0039] The operating device 30 is provided in the toilet room R. The operating device 30 is provided in a position where it can be operated by a user. The operating device 30 is provided in a position where it can be operated when the user is seated on the toilet seat 5. In FIG. 1, the operating device 30 is provided on a wall surface W on the left side as seen from a user seated on the toilet seat 5. Note that the operating device 30 may be provided in various ways, not limited to on a wall surface, as long as it is usable by a user seated on the toilet seat 5. For example, the operating device 30 may be provided integrally with the toilet seat device 2.

[0040] The operating device 30 is connected to the toilet seat device 2 via a predetermined network so as to be able to communicate with the toilet seat device 2 in a wired or wireless manner. For example, the toilet seat device 2 and the operating device 30 may be connected in any manner as long as they are able to transmit and receive information, and may be connected to each other in a wired or wireless manner so as to be able to communicate with each other.

[0041] The operation device 30 accepts various operations from a user via a display surface (e.g., a display screen 31) using, for example, a touch panel function. The operation device 30 may also include switches and buttons, and accept various operations via the switches and buttons. The display screen 31 is a display screen of a tablet terminal or the like realized by, for example, a liquid crystal display or an organic EL (Electro-Luminescence) display, and is a display device for displaying various information. In other words, the operation device 30 accepts input from the user via the display screen 31, and also outputs to the user. The display screen 31 is a display device for displaying various information.

[0042] The operation device 30 accepts user operations for controlling various functions provided in the toilet room R. The operation device 30 accepts user operations for controlling the execution of local cleansing by the toilet seat device 2. For example, the operation device 30 may have switches, buttons, etc. for accepting the above-mentioned user operations, and may execute various processes in response to the user's touching the switches, buttons, etc. Note that the above is just an example, and the operation device 30 may accept user operations for executing various processes.

[0043] The vital information measuring system 1 measures the vital information of a user of the toilet room R based on the fecal gas discharged into a bowl portion 8 of a toilet 7 installed in the toilet room R, using various configurations and processes described below. The vital information measuring system 1 executes control to appropriately measure the fecal gas. The vital information measuring system 1 may provide information to a user terminal (corresponding to the display means 300 in FIG. 3) such as a smartphone of the user based on the information collected by measurement, etc. The vital information measuring system 1 may also provide information to an operating device 30 (or a display screen 31) of the toilet room R based on the information collected by measurement, etc.

[0044] <1-2. Configuration of the measuring device> Next, the configuration of the measuring device 4 will be described with reference to Fig. 2. Fig. 2 is a plan view showing an example of the configuration of the measuring device according to the embodiment. In the example shown in Fig. 2, the measuring device 4 is disposed inside the main body 3 as an example. Fig. 2 illustrates the configuration of the measuring device 4 by removing the housing (cover) of the main body 3 where the measuring device 4 is disposed.

[0045] Measurement device 4 has suction device 10 that sucks gas within bowl portion 8 of toilet bowl 7, gas detection device 20 that detects components of the sucked gas, and pressure loss generating unit 50. Note that a first opening 12 (bowl portion 8) side of gas flow path 11 is defined as the upstream side, and a second opening 13 (outside main body portion 3) side of gas flow path 11 is defined as the downstream side.

[0046] The suction device 10 sucks in gas within the bowl portion 8 from which fecal gas has been discharged by a user of the toilet room R. The suction device 10 sucks in the gas within the bowl portion 8 into a gas flow path 11. The suction device 10 has a fan for sucking in gas within the bowl portion 8 of the toilet 7.

[0047] The suction device 10 is disposed in a gas flow path 11, which is a flow path that communicates with the inside of the bowl portion 8 of the toilet 7 on the side of a first opening 12. The gas flow path 11 allows the gas sucked by the suction device 10 to pass through. The gas flow path 11 is formed in a tubular shape having a space inside in which components such as the suction device 10 are disposed. The gas flow path 11 is, for example, a duct.

[0048] A first opening 12 of gas flow passage 11 functions as an inlet that allows gas in bowl portion 8 to flow into gas flow passage 11, as shown typically by arrow IN in Fig. 2. Suction device 10 drives a fan to suck gas in bowl portion 8 using gas flow passage 11 as a flow passage. For example, suction device 10 executes processes related to suction under the control of control device 100. Note that when suction device 10 is used in common with a deodorizing device or the like incorporated in toilet seat device 2, suction device 10 may be controlled by a control means (device) separate from control device 100.

[0049] The gas detector 20 executes a process for detecting the components of the gas sucked by the suction device 10. In FIG. 2, the gas detector 20 is disposed at the rear stage of the suction device 10 as viewed from the bowl portion 8 side. Note that FIG. 2 is merely an example, and the gas detector 20 may be disposed at any position as long as the gas sucked by the suction device 10 can be introduced. The gas detector 20 is disposed in the gas flow passage 11 in which the second opening 13 side communicates with the outside of the main body portion 3. The second opening 13 functions as an outlet port for discharging the gas in the gas flow passage 11 from the gas flow passage 11, as shown typically by the arrow OT in FIG. 2. For example, the gas in the gas flow passage 11 is discharged to the outside of the gas flow passage 11 in response to the driving of the suction device 10.

[0050] For example, gas detection device 20 executes processes related to gas detection under the control of control device 100. Gas detection device 20 includes gas sensor 40 that reacts to gas contained in the gas passing through gas flow path 11. Gas sensor 40 detects a specific component of the gas.

[0051] For example, a semiconductor gas sensor is used as the gas sensor 40. The gas sensor 40 may be a hydrogen gas sensor capable of detecting hydrogen. The gas sensor 40 may be an odorous gas sensor capable of detecting odorous gas. The gas sensor 40 may be a methane gas sensor capable of detecting methane. For example, the gas detection device 20 has a plurality of gas sensors 40. The plurality of gas sensors 40 may include a gas sensor 40a which is a hydrogen gas sensor, a gas sensor 40b which is an odorous gas sensor, and a gas sensor 40c which is a methane gas sensor. When the gas sensors 40a to 40c are described without making any particular distinction, they will be described as gas sensors 40.

[0052] It should be noted that the above is merely an example, and the gas sensor is not limited to semiconductor gas sensor 40, and any type of sensor may be used. For example, gas detection device 20 may have a gas sensor such as an infrared CO2 sensor (carbon dioxide concentration measuring device).

[0053] The pressure loss generating section 50 has a function of generating a pressure loss (also referred to as a "pressure loss generating function"). The pressure loss generating section 50 makes the pressure loss generated when the gas passes through the gas flow passage 11 higher downstream of the position where the gas sensor 40 is disposed with respect to the traveling direction of the gas. For example, the pressure loss generating section 50 has a deodorizing function. The pressure loss generating section 50 is formed of a deodorizing catalyst. For example, the pressure loss generating section 50 may be a catalyst filter that adsorbs odorous gases such as odorous gases. The air from which odorous gases and other gases have been removed by the pressure loss generating section 50 is discharged outside the main body section 3 (to the rear side of the main body section 3 in FIG. 2). Details of the arrangement of the pressure loss generating section 50 will be described later.

[0054] <1-3. Example of an overview of a biological information measurement system> Next, an example of an overall overview of the biological information measuring system 1 will be described with reference to Fig. 3. Fig. 3 is a diagram showing an example of an overall overview of the biological information measuring system according to an embodiment. Note that the same points as those described in Figs. 1 and 2 will not be described as appropriate.

[0055] In Fig. 3, the biological information measuring system 1 includes a suction device 10, a gas detection device 20, a control device 100, and an estimation means 200. Figs. 1 and 2 show a case where the toilet seat device 2 has the suction device 10, the gas detection device 20, and the control device 100, but this is not limited to the above. For example, the control device 100 may be provided separately from the suction device 10 and the gas detection device 20, and may control the suction device 10 and the gas detection device 20 by communicating with the suction device 10 and the gas detection device 20 wirelessly or via a wire. Furthermore, as described above, the suction device 10 may be controlled by a control means other than the control device 100.

[0056] The estimation means 200 is a computer (information processing device) having a function of executing estimation processing based on information acquired by detection by the gas detection device 20. For example, the estimation means 200 may be a cloud server (server device) located outside the toilet room R. In this case, the estimation means 200 is connected to a device (also referred to as an "in-toilet device") arranged in the toilet room R, such as the toilet seat device 2 or the gas detection device 20, via a predetermined network such as the Internet in a wired or wireless manner so as to be able to communicate with each other.

[0057] The estimation means 200 is connected to a device that displays information to a user, such as the display means 300, via a predetermined network such as the Internet, in a wired or wireless manner so as to be able to communicate with each other. The estimation means 200 may be connected to devices such as the toilet device and the display means 300 in any manner as long as it is possible to transmit and receive information, and may be connected to the device in the toilet in a wired or wireless manner so as to be able to communicate with each other. The estimation means 200 may be able to communicate with the control device 100.

[0058] The estimation means 200 executes estimation processing regarding the health condition of the user using the information received from the in-toilet device. The data acquired so far may be stored in the estimation means 200 or may be stored in the display means 300. The estimation means 200 generates information for estimating the health condition of the user (also called "health estimation information") or information related thereto based on the amount of health gas and odorous gas in the user's defecation gas. The estimation means 200 calculates a score based on the ratio of the amount of health gas and the amount of odorous gas in the user's defecation gas as the user's health estimation information. For example, the estimation means 200 may use any information such as a ratio or odor alone. The above is only one example, and the estimation means 200 may generate any information as the user's health estimation information. For example, the estimation means 200 may generate the following information as the user's health estimation information, or may generate the health estimation information based on the following processing results.

[0059] For example, the estimation means 200 may estimate information on the intestinal state of the user from the measured value. For example, the estimation means 200 may estimate information on the state of bacteria. In this case, for example, the estimation means 200 may estimate the occupancy rate of a certain bacteria, the amount and ratio of good bacteria and bad bacteria, etc. Also, for example, the estimation means 200 may estimate the state of metabolites. In this case, for example, the estimation means 200 may estimate the amount and ratio of useful substances and harmful substances, etc. For example, the estimation means 200 may estimate the state of intestinal pH. Also, the estimation means 200 may generate information in which the above-mentioned information is scored or evaluated as good or bad. For example, the estimation means 200 may generate the above-mentioned information as health estimation information of the user.

[0060] Also, for example, the estimation means 200 may generate information on the health condition of the user from the measured value. In this case, for example, the estimation means 200 may generate information evaluating the score or goodness / badness of the intestinal environment of the user. For example, the estimation means 200 may generate information on the intestinal environment of the user. For example, the estimation means 200 may generate information on the immunity of the user. For example, the estimation means 200 may generate information on the ease of weight loss of the user. For example, the estimation means 200 may generate information on the cholesterol index. For example, the estimation means 200 may generate information on the metabolic score. For example, the estimation means 200 may generate the above-mentioned information as the health estimation information of the user. Note that the above-mentioned examples are merely illustrative, and the estimation means 200 may generate various information related to the health condition of the user, not limited to the above.

[0061] The estimation means 200 estimates, based on the calculated ratio, that the more the health gases are in the user's defecation gas than the odorous gases, the healthier the user is. The estimation means 200 estimates, based on the calculated ratio, that the more the odorous gases are in the user's defecation gas than the health gases, the unhealthier the user is. Note that the above is merely an example, and the estimation means 200 may make any estimation based on the calculated score. The estimation means 200 transmits information to be provided to the user to the display means 300. The estimation means 200 transmits the calculated score as the user's estimated health information to the display means 300 used by the user.

[0062] The estimation means 200 is not limited to a cloud server (server device), and may be any device. In other words, the device configuration and arrangement of the estimation means 200 may be any form as long as the desired processing can be realized. For example, the estimation means 200 may be a mobile terminal (device) such as a laptop computer that can be carried by an administrator of the vital information measurement system 1. The estimation means 200 may also be disposed in the toilet room R. For example, the estimation means 200 may be configured to be disposed in the toilet room R. For example, the toilet seat device 2 may have the function of the estimation means 200. In this case, the control device 100 may have the function of the estimation means 200.

[0063] The display means 300 is a display device (computer) that displays information to be provided to a user. For example, the display means 300 may be a user terminal (mobile terminal) owned by the user. In this case, the display means 300 is realized by, for example, a smartphone, a mobile phone, a PDA (Personal Digital Assistant), a tablet terminal, a notebook PC (Personal Computer), or the like. For example, the display means 300 is connected to devices included in the biological information measurement system 1, such as the estimation means 200, via a predetermined network so as to be able to communicate with each other by wire or wirelessly.

[0064] The display means 300 transmits and receives information to and from the estimation means 200. The display means 300 receives information to be provided to the user from the estimation means 200. The display means 300 receives a score calculated as estimated health information of the user from the estimation means 200. The display means 300 displays information including the score calculated as estimated health information of the user.

[0065] In Fig. 3, the display means 300 displays the score calculated as the user's health estimation information as the user's intestinal environment score. For example, the display means 300 displays the user's intestinal environment score in chronological order for each date and time of excretion. The display means 300 displays the target score value, information showing the change over time in the user's intestinal environment score, and text information showing the evaluation. For example, the display means 300 may request information from the estimation means 200 and display the information obtained from the estimation means 200.

[0066] Note that the above is merely an example, and the biological information measuring system 1 can adopt any device configuration as long as it can realize the desired processing. In the biological information measuring system 1, the toilet seat device 2 may have a configuration other than the display means 300. For example, the toilet seat device 2 may have a measuring device 4, a control device 100, and an estimation means 200. Also, for example, the display means 300 does not have to be included in the biological information measuring system 1, or may be included in the biological information measuring system 1. For example, when the display means 300 is the operation device 30 of the toilet room R, the display means 300 may be included in the biological information measuring system 1. In this case, the operation device 30 has a function of displaying estimated health information of the user.

[0067] <1-4. User behavior and system operation> Next, an example of the relationship between the movement (behavior) of a user who uses the biological information measuring system 1 and the movement (operation) of the biological information measuring system 1 will be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of the relationship between the behavior of a user and the operation of the system.

[0068] First, a flow of actions of a user who uses the toilet R to defecate will be described with reference to Fig. 4. The user of the toilet R performs actions in stages 1 to 7 as shown in Fig. 4.

[0069] First, the user performs the action of entering toilet room R as a first stage action. After entering toilet room R, the user performs the action of undressing inside toilet room R as a second stage action. After undressing, the user performs the action of sitting on toilet seat 5 in toilet room R as a third stage action. After sitting on toilet seat 5, the user performs the action of defecating into bowl portion 8 of toilet 7 as a fourth stage action.

[0070] After defecating, the user performs finishing actions such as using the toilet seat device 2's local cleansing function or using toilet paper to clean the local area after defecation, as a fifth stage action. After completing finishing after defecation, the user stands up and leaves the toilet seat 5, as a sixth stage action. After leaving the seat, the user performs seventh stage actions such as flushing the toilet bowl 7, leaving the toilet room R, and checking the results of the defecation gas analysis by the vital information measurement system 1.

[0071] Next, the flow of operations of the bioinformation measurement system 1 corresponding to the above-mentioned user's behavior will be described. The bioinformation measurement system 1 starts aspirating gas before the user who entered the toilet room R starts defecation. In FIG. 4, the bioinformation measurement system 1 starts aspirating gas between the first stage and the third stage. As a result, the bioinformation measurement system 1 completes measurement preparation before the user defecates. For example, the bioinformation measurement system 1 aspirates gas in the bowl portion 8 before the user defecates, thereby aspirating gas that serves as a reference (baseline) for comparison with the gas after the user defecates. For example, the bioinformation measurement system 1 calculates the increment (increase) from the baseline to estimate (calculate) the amount of components contained in the defecation gas.

[0072] The vital information measuring system 1 measures the defecation gas of the user from the time the user defecates until the time the user leaves the seat. In Fig. 4, the vital information measuring system 1 measures the defecation gas of the user from before the fourth stage to the fifth stage. In this way, the vital information measuring system 1 aspirates the gas at any time while the user is seated and acquires data.

[0073] After the measurement of the defecation gas is completed, the bioinformation measurement system 1 performs an analysis of the defecation gas. In FIG. 4, the bioinformation measurement system 1 performs an analysis of the defecation gas of the user between the sixth and seventh stages. As a result, after the user finishes defecation, the bioinformation measurement system 1 performs an analysis based on the information of the defecation gas (result) acquired about the user, and calculates a score. The bioinformation measurement system 1 analyzes the defecation gas of the user, and provides the analysis result to the user. The analysis and the provision of the result are not limited to the sixth to seventh stages, and may be performed at any timing as long as the information can be provided. For example, the bioinformation measurement system 1 may provide various information such as the analysis and the result at any timing, such as during measurement or immediately after the measurement is completed.

[0074] <1-5. Functional configuration of the toilet seat device> Next, the functional configuration of the toilet seat device 2 will be described with reference to Fig. 5. Fig. 5 is a block diagram showing an example of the configuration of the toilet seat device according to the embodiment. As shown in Fig. 5, the toilet seat device 2 includes a human sensor 32, a seating sensor 33, an illuminance sensor 34, a control device 100, a nozzle motor 61, and a washing nozzle 6.

[0075] The configuration of the toilet seat device 2 shown in FIG. 5 is merely an example, and when each component is provided separately, the toilet seat device 2 may have only the toilet seat 5. Thus, the configuration of the toilet seat device 2 shown in FIG. 5 is merely an example, and the toilet seat device 2 may have any configuration. The human presence sensor 32, the seating sensor 33, the illuminance sensor 34, and the like may be disposed at any location as long as the desired sensing is possible. Furthermore, the toilet seat device 2 only needs to be capable of detecting a user sitting on the toilet seat 5, and may have at least one of the human presence sensor 32, the seating sensor 33, and the illuminance sensor 34. The toilet seat device 2 transmits and receives information to and from an information processing device such as the estimation means 200 via a predetermined network (such as the Internet) by a communication device (such as the communication unit 110 of the control device 100 in FIG. 6) in a wired or wireless manner.

[0076] The human sensor 32 has a function of detecting a human body. For example, the human sensor 32 is used as a seating detection means for detecting a user sitting on the toilet seat 5. For example, the human sensor 32 is realized by a pyroelectric sensor using an infrared signal. For example, the human sensor 32 may be realized by a μ (micro) wave sensor. For example, the human sensor 32 is an infrared light emitting / receiving distance measuring sensor, and may detect a human body present near the toilet seat 5 immediately before the person (user) sits on the toilet seat 5, or a user sitting on the toilet seat 5.

[0077] The human presence sensor 32 also functions as a seat leaving detection sensor that detects when a user leaves the toilet seat 5. The human presence sensor 32 detects whether the user is seated on the toilet seat 5. The human presence sensor 32 outputs a detection signal to the control device 100. Note that the above is just an example, and the human presence sensor 32 may detect a human body by various means other than the above. For example, the human presence sensor 32 detects a person (such as a user) approaching the toilet seat 5.

[0078] The seating sensor 33 has a function of detecting a person sitting on the toilet seat device 2. For example, the seating sensor 33 is used as a seating detection means for detecting a user sitting on the toilet seat 5. For example, the seating sensor 33 is realized by a load sensor or the like. The seating sensor 33 detects that a user is sitting on the toilet seat 5. The seating sensor 33 is capable of detecting that a user is sitting on the toilet seat 5.

[0079] The seating sensor 33 also functions as a seating detection sensor that detects a user leaving the toilet seat 5. The seating sensor 33 detects the user's seated state on the toilet seat 5. Note that the above is just an example, and the seating sensor 33 may detect a person sitting on the toilet seat device 2 by various means other than the above. The seating sensor 33 outputs a seating detection signal to the control device 100.

[0080] The illuminance sensor 34 is a sensor that detects illuminance. For example, the illuminance sensor 34 is used as a seating detection means that detects a user sitting on the toilet seat 5. For example, the illuminance sensor 34 is disposed at a position facing the bowl portion 8, and detects the illuminance inside the bowl portion 8.

[0081] The illuminance sensor 34 also functions as a seating detection sensor that detects when a user leaves the toilet seat 5. The illuminance sensor 34 detects the user's seated state on the toilet seat 5. Note that the above is merely an example, and the illuminance sensor 34 may be placed in any position as long as it is possible to detect when a user is sitting on the toilet seat 5 based on the illuminance.

[0082] The control device 100 controls various configurations and processes. The control device 100 is a computer (information processing device) that executes various information processes related to gas measurement, etc. The control device 100 may be any device having a configuration required for control, and may be, for example, a microcomputer.

[0083] The control device 100 controls various components for measuring gas. The control device 100 controls the gas detection device 20. The control device 100 transmits control information to the gas detection device 20 via a wired connection. The control device 100 may transmit the control information to the gas detection device 20 wirelessly. For example, when the control device 100 is configured as a device separate from the toilet seat device 2, the control device 100 may transmit the control information of the gas detection device 20 to the toilet seat device 2 wirelessly. In this case, the control device of the toilet seat device 2 may control the gas detection device 20 based on the control information received.

[0084] The control device 100 controls the suction device 10. For example, the control device 100 controls the start and stop of suction by the suction device 10. The control device 100 transmits control information to the suction device 10 via a wired connection. The control device 100 may transmit the control information to the suction device 10 wirelessly. For example, when the control device 100 is configured as a separate device from the toilet seat device 2, the control device 100 may transmit the control information of the suction device 10 to the toilet seat device 2 wirelessly. In this case, the control device of the toilet seat device 2 may control the suction device 10 based on the control information received.

[0085] In addition to the above, the control device 100 also controls various components of the biological information measuring system 1. The control device 100 controls the nozzle motor 61, etc. Based on a signal transmitted from the operation device 30, the control device 100 controls the nozzle motor 61, etc.

[0086] The control device 100 controls the nozzle motor 61 based on a control instruction signal related to local cleaning transmitted from the operation device 30. The control device 100 controls the nozzle motor 61 to advance and retreat the cleaning nozzle 6. The control device 100 may control various mechanisms other than the nozzle motor 61. For example, the control device 100 controls the opening and closing of a solenoid valve that functions as a valve that electromagnetically controls the flow of a fluid. For example, the control device 100 controls the solenoid valve to switch between supplying and stopping tap water from a water supply pipe, for example.

[0087] The control device 100 transmits control information to the nozzle motor 61 etc. via a wired connection. The control device 100 may also transmit control information to the nozzle motor 61 etc. wirelessly. For example, when the control device 100 is configured as a device separate from the toilet seat device 2, it may transmit control information for the nozzle motor 61 etc. to the toilet seat device 2 wirelessly. In this case, the control device of the toilet seat device 2 may control the nozzle motor 61 etc. based on the control information received.

[0088] The control device 100 may also control a toilet lid 9 and a toilet seat 5 as shown 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 control instruction signal transmitted from the operation device 30 regarding opening and closing of the toilet lid. The control device 100 controls the toilet seat 5 based on a control instruction signal transmitted from the operation device 30 regarding opening and closing of the seat. The control device 100 transmits control information to the toilet lid 9 and the toilet seat 5 via a wired connection. The control device 100 may also transmit control information to the toilet lid 9 and the toilet seat 5 wirelessly.

[0089] The control device 100 determines whether or not a user is seated by seating detection means such as the human sensor 32, the seating sensor 33, and the illuminance sensor 34. The control device 100 determines whether or not a user is seated on the toilet seat 5 based on defecation action use prediction information based on detection by the seating detection means obtained from the seating detection means.

[0090] The nozzle motor 61 is a drive source (motor) that drives the cleaning nozzle 6 to advance and retract. The nozzle motor 61 executes control to advance and retract the cleaning nozzle 6 relative to the main body 3. The nozzle motor 61 executes control to advance and retract the cleaning nozzle 6 in response to an instruction from the control device 100.

[0091] In the configuration shown in FIG. 5, the toilet seat device 2 includes the control device 100 and the like as an example, but the control device 100, the human sensor 32, the seating sensor 33, the illuminance sensor 34, and the like may be configured as devices separate from the toilet seat device 2. For example, the control device 100 may be configured as a device separate from the toilet seat device 2. For example, the control device 100 may be a server device and may be located at a position separated from the toilet seat device 2. In this case, the control device 100 communicates with each device such as the toilet seat device 2, the human sensor 32, the seating sensor 33, and the illuminance sensor 34, and receives various information from each device. In addition, in this case, the toilet seat device 2 may have a configuration (such as a control circuit) for controlling various components of the toilet seat device 2, such as the nozzle motor 61. Note that the above is merely an example, and the biological information measurement system 1 can adopt any device configuration as long as it is capable of performing the desired processing.

[0092] <1-6. Functional configuration of the control device> Hereinafter, the functional configuration of the control device will be described with reference to FIG. 6. FIG. 6 is a block diagram showing an example of the configuration of the control device according to the embodiment. As shown in FIG. 6, the control device 100 has a communication unit 110, a storage unit 120, and a control unit 130. Note that the configuration of the control device 100 is not limited to the configuration shown in FIG. 6, and may be other configurations as long as the desired processing can be realized. For example, the control device 100 does not need to have the communication unit 110.

[0093] The communication unit 110 is realized by, for example, a communication circuit or the like. The communication unit 110 is connected to a predetermined network by wire or wirelessly, and transmits and receives information to and from an external information processing device. For example, the communication unit 110 is connected to a predetermined network by wire or wirelessly, and transmits and receives information to and from other devices such as the operation device 30. The communication unit 110 may be configured as a device (communication device) separate from the control device 100, and may be included in the toilet seat device 2.

[0094] The storage unit 120 is realized by, for example, a semiconductor memory element such as a random access memory (RAM) or a flash memory, or a storage device such as a hard disk or an optical disk. For example, the storage unit 120 is a computer-readable recording medium that non-temporarily records data used by various information processing programs.

[0095] The storage unit 120 according to the embodiment stores various information necessary for processing. The storage unit 120 stores various information acquired from other devices such as various sensors. The storage unit 120 stores various information used in various information processing. For example, the storage unit 120 stores information related to reference value control such as target values.

[0096] Returning to Fig. 6, the description will be continued. The control unit 130 is realized, for example, by an MPU (Micro Processing Unit), a CPU (Central Processing Unit), or the like executing a program (for example, various information processing programs related to the present disclosure) stored inside the control device 100 using a RAM or the like as a working area. The control unit 130 may also be realized, for example, by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0097] 6, the control unit 130 has an acquisition unit 131, a processing unit 132, and an output unit 133, and realizes or executes the functions and actions of information processing described below. Note that the internal configuration of the control unit 130 is not limited to the configuration shown in FIG. 6, and may be other configurations as long as they perform the information processing described below.

[0098] 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 (detection information, etc.) detected by various sensors from various sensors.

[0099] The acquisition unit 131 acquires information (detection information, etc.) detected by the seating detection means from the seating detection means. The acquisition unit 131 receives information (detection information, etc.) detected by at least one of the human sensor 32, the seating sensor 33, and the illuminance sensor 34 from the sensor.

[0100] The acquisition unit 131 acquires defecation action use prediction information based on detection by the seating detection means. For example, the acquisition unit 131 acquires defecation action use prediction information indicating that the user is seated.

[0101] Processing unit 132 performs various processes. Processing unit 132 performs various processes using information stored in storage unit 120. Processing unit 132 controls gas detection apparatus 20.

[0102] The processing unit 132 performs a calculation process. The processing unit 132 performs the calculation process using various pieces of information stored in the storage unit 120. The processing unit 132 performs the calculation process using various pieces of information acquired by the acquisition unit 131.

[0103] The processing unit 132 calculates various pieces of information related to the gas. The processing unit 132 calculates values ​​based on the measurement values ​​measured by the gas detection device 20. The processing unit 132 calculates the resistance value of the sensor element based on the voltage value measured by the gas sensor 40. For example, the processing unit 132 calculates the resistance value of the sensor element from the measured voltage value using a function that indicates the relationship between the voltage value and the resistance value of the sensor element. The processing unit 132 calculates the resistance value of the sensor element using formula (1).

[0104] The processing unit 132 may calculate the gas concentration based on the calculated resistance value of the sensor element. In this case, the processing unit 132 calculates the gas concentration from the calculated resistance value using a function that indicates the relationship between the resistance value and the gas concentration.

[0105] The output unit 133 executes an output process to output various information. The output unit 133 functions as a transmission unit to transmit various information. The output unit 133 executes the output process by transmitting information to an external information processing device. The output unit 133 transmits information to an external information processing device. For example, the output unit 133 transmits various information to the estimation means 200. For example, the output unit 133 transmits various information to an administrator device such as a personal computer or smartphone used by an administrator of the estimation means 200. The output unit 133 may also execute the output process by transmitting information to the operation device 30 (or the display screen 31).

[0106] The output unit 133 transmits various information used by the estimation unit 200 in the estimation process to the estimation unit 200. The output unit 133 transmits information indicating the measurement values ​​measured by the gas detection apparatus 20. The output unit 133 transmits information indicating the values ​​calculated by the processing unit 132.

[0107] <1-7.Gas sensors> From here, a configuration example of a gas sensor will be described with reference to Fig. 7. Fig. 7 is a diagram showing an example of the configuration of a gas sensor. Specifically, Fig. 7 is a diagram showing an example of a circuit configuration CR of a semiconductor gas sensor 40.

[0108] The gas sensor 40 includes a sensor element and a resistance element for measurement. In Fig. 7, the gas sensor 40 has a circuit configuration CR in which a sensor element (corresponding to the sensor resistor RS in Fig. 7) and a resistance element for measurement (corresponding to the resistance element RL in Fig. 7) are connected in series.

[0109] In the semiconductor gas sensor 40, a value related to the amount of gas is calculated using the following formula (1): Formula (1) corresponds to the circuit configuration CR shown in FIG.

[0110] RS =((Vc-Vout) / Vout)×RL… (1)

[0111] "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 resistor RS, which is an example of a value calculated based on the measurement by the gas sensor 40. In this way, formula (1) is a formula for calculating the resistance value.

[0112] "RL" in equation (1) represents the resistance value of the resistive element RL. "Vc" in equation (1) represents the voltage value of the circuit voltage Vc. "Vout" in equation (1) represents the voltage value of the output voltage Vout at the resistive element. For example, "Vout" in equation (1) represents the voltage value of the resistive element RL, which is an example of a measured value measured by the gas sensor 40.

[0113] The resistance value of the sensor resistor RS in formula (1) is an index related to the amount of gas. The biological information measurement system 1 calculates an index (resistance value) related to the amount of gas from a measured value (voltage value), and calculates the amount of gas from the calculated resistance value. Although a detailed explanation of the principles of a semiconductor gas sensor will be omitted, for example, "RH" shown only in the circuit configuration CR in FIG. 7 corresponds to a heater (resistance) for heating the sensor element, and "VH " corresponds to the heater voltage. Note that the gas sensor in the present invention is not limited to a semiconductor sensor, and any sensor that satisfies the above formula (1) can be used.

[0114] <1-8. Configuration example> From here, a configuration example for enabling appropriate measurement of gas will be described, assuming the configuration of the above-mentioned biological information measurement system 1. First, prior to describing a specific configuration example, the effect on measurement of the concentration gradient of defecation gas diffused within bowl portion 8 will be described with reference to Fig. 8. Fig. 8 is a diagram showing an example of the effect of the concentration gradient on measurement.

[0115] Graph GR11 in Figure 8 shows an example of a measurement when fecal gas having a concentration gradient diffused within the bowl portion 8 is detected by a gas sensor, with the vertical axis indicating the detection value (e.g., the voltage value of the resistive element RL) and the horizontal axis indicating time.

[0116] The actual measurement value LN11 shown by a solid line in the graph GR11 indicates the value (actual measurement value) of the defecation gas having a concentration gradient diffused in the bowl portion 8 that is actually detected (measured) by the gas sensor. Moreover, the true measurement value LN12 shown by a dotted line in the graph GR11 indicates the value (true measurement value) that should be detected (measured) when the defecation gas having a concentration gradient diffused in the bowl portion 8 is detected (measured) by the gas sensor.

[0117] As shown by the actual measurement value LN11 and the true measurement value LN12 in the graph GR11, in a portion where the gas concentration gradient is steep, the difference between the actual measurement value and the value that should be detected (measured) (the true measurement value) becomes large. For example, in the example of Fig. 8, the deviation between the actual measurement value and the true measurement value becomes large near the portion where the detection value increases rapidly from a small value or the portion where the detection value becomes maximum. When the difference between the actual measurement value and the true measurement value is large like this, it is difficult to perform an appropriate measurement.

[0118] Therefore, the biological information measuring system 1 has at least one of a first configuration and a second configuration as described below. Note that the first configuration and the second configuration may be combined in an appropriate manner if they are applicable in combination. That is, the biological information measuring system 1 may have both the first configuration and the second configuration. Each of the first configuration and the second configuration will be described below.

[0119] <1-8-1. First Configuration> First, a first configuration example will be described with reference to Fig. 9. Fig. 9 is a diagram showing an example of the first configuration according to the embodiment. Fig. 9 is a schematic diagram showing the arrangement relationship of each component in the gas flow path 11. Note that the description of the same points as those described above will be omitted as appropriate.

[0120] 9, suction device 10, gas detector 20, and pressure loss generating section 50 are arranged in this order from the first opening 12 (upstream) side of gas flow path 11. In the first configuration shown in FIG. 9, suction device 10 is arranged upstream of gas detector 20.

[0121] Moreover, the pressure loss generating section 50 has a pressure loss generating function, and is disposed at the most downstream of the gas flow path 11. In the biological information measuring system 1 having the first configuration, the pressure loss is maximum at the location where the pressure loss generating section 50 is disposed in the gas flow path 11. In the first configuration shown in FIG. 9, the pressure loss generating section 50 is disposed at the rearmost (most downstream) part on the second opening 13 (downstream) side of the gas flow path 11. That is, the pressure loss generating section 50 is disposed along the second opening 13, which is the most downstream outlet of the gas flow path 11.

[0122] For example, pressure loss generating section 50 has a structure for generating pressure loss (also referred to as a "pressure loss generating structure"), which generates pressure loss and generates turbulence based on the pressure loss. In this case, pressure loss generating section 50 functions as a turbulent flow generating section that generates turbulence. The pressure loss generating structure may be, for example, a mesh structure. Note that the mesh structure is merely one example, and the pressure loss generating structure is not limited to a mesh structure and may have any structure as long as it can generate the desired pressure loss.

[0123] Here, an example of turbulent flow generation in the first configuration will be described with reference to Fig. 10 and Fig. 11. Fig. 10 and Fig. 11 are diagrams showing an example of turbulent flow generation in the first configuration. Note that the same points as those described in Fig. 9 and the like will not be described as appropriate.

[0124] First, the state before the concentration gradient is eliminated (initial state) will be described with reference to Fig. 10. For example, Fig. 10 is a schematic diagram corresponding to the state before the concentration gradient is eliminated in the first configuration. Fig. 10 shows a case where gas GS11, which is defecation gas having a concentration gradient, flows from the first opening 12 (upstream) side to the second opening 13 (downstream) side as shown in the gas traveling direction RD.

[0125] In Fig. 10, the concentration gradient of gas GS11 is shown by hatching applied to gas GS11. That is, in Fig. 10, the shade of the hatching indicates the shade of the concentration, for example, the darker the hatching, the higher the concentration. Note that gas GS11 in Fig. 10 is a diagram for imagining a state in which defecation gas has a concentration gradient, and does not indicate that defecation gas is composed only of concentrations corresponding to the three hatchings as in Fig. 10.

[0126] 10, the concentration gradient around the gas sensor 40 is shown by hatching in the concentration state IG11. That is, like the concentration state IG11 and gas GS11, the shade of the hatching indicates the shade of the concentration. Note that the concentration state IG11 in FIG. 10 is a diagram for imagining a state in which a gas concentration gradient occurs around the gas sensor 40, like gas GS11, and does not indicate that the gas around the gas sensor 40 is composed only of concentrations corresponding to the three hatchings as in FIG. 10.

[0127] Fig. 10 corresponds to a state in which the gas GS11 reaches the pressure loss generating section 50 and a turbulent flow is generated. That is, Fig. 10 corresponds to a state in which the gas GS11 reaches the pressure loss generating section 50 and the turbulent flow EF11 generated by the pressure loss generating section 50 has not yet reached the periphery of the gas sensor 40, and a gas concentration gradient is generated around the gas sensor 40 as indicated by the concentration state IG11. In this way, the turbulent flow EF11 generated by the pressure loss generating section 50 propagates upstream as time passes.

[0128] Next, the state after the concentration gradient is eliminated will be described with reference to Fig. 11. For example, Fig. 11 is a schematic diagram corresponding to the state after the concentration gradient is eliminated in the first configuration. Note that the description of the same points as those described in Fig. 10 and the like will be omitted as appropriate.

[0129] 11 shows a case where gas GS12, which is defecation gas having a concentration gradient, flows from the first opening 12 (upstream) side to the second opening 13 (downstream) side as shown in the gas flow direction RD. Note that the hatching and other expressions of gas GS12 are the same as those of gas GS11 in FIG. 10, and therefore will not be described.

[0130] Fig. 11 corresponds to a state after a time has elapsed from the state shown in Fig. 10 (state after the passage of time). For example, Fig. 11 corresponds to a state in which a time has elapsed since the gas GS11 reached the pressure loss generating section 50, and the turbulent flow EF12 generated by the pressure loss generating section 50 has reached the periphery of the gas sensor 40. In Fig. 11, as shown by the turbulent flow EF12, the homogenization of the concentration starts from the generation of a turbulent flow (for example, the turbulent flow EF11 in Fig. 10) and spreads to the upstream side, so that the concentration of the gas around the gas sensor 40 is homogenized.

[0131] As a result, the gas concentration around the gas sensor 40 is homogenized, as shown by the concentration gradient in concentration state IG12 in Fig. 11. Note that the hatching and other expressions in the concentration state IG12 are similar to those in the concentration state IG11 in Fig. 10, and therefore will not be described.

[0132] 11, the biological information measurement system 1 having the first configuration can measure gas without being affected by the gas concentration gradient by performing measurement in a state where the gas concentration gradient around the gas sensor 40 is eliminated. This allows the biological information measurement system 1 having the first configuration to perform appropriate gas measurement.

[0133] As described above, the biological information measuring system 1 having the first configuration is provided with a means for generating a pressure loss downstream of the gas sensor 40, so that the gas sensor 40 can be brought into contact with a gas having a uniform concentration gradient while generating a turbulent flow downstream. In this way, the biological information measuring system 1 having the first configuration generates a pressure loss downstream of the gas sensor 40 by the pressure loss generating unit 50, and while bringing the gas into contact with the gas sensor 40, the gas sensor 40 can be brought into contact with a gas having a uniform concentration gradient by generating a turbulent flow downstream. This allows the biological information measuring system 1 having the first configuration to perform accurate measurement by the gas sensor 40 without being affected by the concentration gradient of defecation gas.

[0134] Moreover, in order to enable accurate measurement by the gas sensor 40, the biological information measuring system 1 having the first configuration has the following configuration.

[0135] For example, in the biological information measurement system 1 having the first configuration, as shown in Fig. 9, the suction device 10 is disposed upstream of the gas detection device 20 (gas sensor 40), and agitates the defecation gas and the mixed gas in the bowl portion 8 and supplies the gas to the gas sensor 40 of the gas detection device 20. As a result, in the biological information measurement system 1 having the first configuration, the mixed gas that has been agitated by the suction device 10 and has a reduced concentration gradient can be flowed downstream, enabling appropriate measurement of the gas. In this way, in the biological information measurement system 1 having the first configuration shown in Fig. 9, the gas can be agitated and supplied to the gas sensor 40 by the suction device 10, so that the gas can be supplied to the gas sensor 40 with a uniform concentration gradient.

[0136] For example, in the biological information measurement system 1 having the first configuration, as shown in FIG. 9, the pressure loss generating unit 50 has a surface area larger than that of the gas sensor 40. As a result, in the biological information measurement system 1 having the first configuration, the pressure loss generating unit 50 generates a pressure loss larger than that at the location where the gas sensor 40 is arranged. In this way, in the biological information measurement system 1 having the first configuration, the pressure loss generated in the pressure loss generating unit 50 can alleviate the concentration gradient of the gas around the gas sensor 40, making it possible to appropriately measure the gas. For example, the biological information measurement system 1 having the first configuration can quickly supply gas to the gas sensor 40 by increasing the pressure loss generated downstream compared to the pressure loss generated when the defecation gas passes through the gas sensor 40, while suppressing particle adhesion to the filter and flow path upstream of the sensor, and can make the concentration gradient more uniform by generating turbulence downstream.

[0137] <1-8-1-1. Other aspects of the first configuration> The first configuration is not limited to the above, and any configuration can be adopted. An example of this point will be described with reference to Fig. 12. Fig. 12 is a diagram showing another example of the first configuration according to the embodiment.

[0138] 12 has a concentration gradient adjuster 60 that is arranged upstream of the gas sensor 40 in the gas flow path 11. The concentration gradient adjuster 60 generates a smaller pressure loss than the pressure loss generating unit 50. The concentration gradient adjuster 60 can generate a turbulent flow by generating a pressure loss due to its surface area.

[0139] For example, the concentration gradient adjuster 60 is configured to have a smaller surface area than the pressure loss generating section 50, thereby generating a smaller pressure loss than the pressure loss generating section 50. In this case, the pressure loss generating section 50 has a larger surface area than the concentration gradient adjuster 60.

[0140] For example, the concentration gradient adjustment unit 60 is a filter that does not have a deodorizing function, and is configured to pass odorous gases, hydrogen, and carbon dioxide, but to prevent the passage of foreign matter such as urine and cleaning agents. The concentration gradient adjustment unit 60 may be a member that does not use a chemical reaction but mechanically collects foreign matter, such as a fine net-like member. The concentration gradient adjustment unit 60 can prevent the gas sensor 40 from being contaminated by urinary stones, etc.

[0141] 12, the concentration gradient adjusting unit 60 generates a pressure loss smaller than that of the pressure loss generating unit 50, and the air in the toilet 7 (bowl unit 8) is collected reliably, the gas does not remain excessively at the inlet of the gas flow path 11, and flows in without excessive particles adhering, and the concentration gradient is made uniform, allowing the gas to be supplied to the gas sensor 40. As a result, the biological information measuring system 1 having the first configuration shown in FIG. 12 can appropriately measure the gas.

[0142] <1-8-2. Second Configuration> Next, a second configuration example will be described with reference to FIG. 13. FIG. 13 is a diagram showing an example of the second configuration according to the embodiment. FIG. 13 is a schematic diagram showing the arrangement position of the gas sensor 40 in the gas flow path 11. As shown in FIG. 13, in the second configuration, the gas sensor 40 is arranged in the gas flow path 11. For example, in the second configuration, the suction device 10, the pressure loss generating unit 50, etc. may not be arranged in the gas flow path 11, or the suction device 10, the pressure loss generating unit 50, etc. may not be arranged. For example, in the case of the second configuration, only the configuration related to the gas detection device 20, such as the gas sensor 40, may be arranged in the gas flow path 11. Note that the description of the same points as those described above in the first configuration and the like will be omitted as appropriate.

[0143] 13 shows the position of the gas sensor 40 in the gas flow path 11 when the gas flow path 11 is viewed from the side. That is, in FIG. 13, the upper side of the gas flow path 11 corresponds to the upper surface side of the gas flow path 11, and the lower side of the gas flow path 11 corresponds to the bottom surface side of the gas flow path 11. In this manner, in the biological information measuring system 1 having the second configuration shown in FIG. 13, the gas sensor 40 is disposed on the bottom surface side of the gas flow path 11. Note that, when the gas sensor 40 is in the form of a sensor unit in which multiple stacked gas sensors 40 are disposed on the bottom surface side of the gas flow path 11, the sensor units are disposed on the bottom surface side of the gas flow path 11, and thus the multiple gas sensors 40 are disposed on the bottom surface side of the gas flow path 11.

[0144] 13, a gas sensor 40 has a sensor sensitive part 41 that reacts to gas, and a cover part 42 that covers the periphery of the sensor sensitive part 41. The sensor sensitive part 41 is a component that reacts to gas among the components of the gas sensor 40. For example, the sensor sensitive part 41 is a component that corresponds to the circuit configuration CR shown in FIG. 7. The sensor sensitive part 41 reacts to gas contained in the gas passing through the gas flow path 11.

[0145] The cover part 42 has the sensor sensitive part 41 disposed therein so as to surround the sensor sensitive part 41, and has a connection port 43 through which the air inside can circulate with the outside. The connection port 43 is a through hole provided in the cover part 42, and is provided so that a fluid such as a gas can flow between the inside and outside of the cover part 42. Note that FIG. 13 shows an example in which one connection port 43 is provided in the center, but the connection port 43 may be provided at any position of the cover part 42, and the cover part 42 may have a plurality of connection ports 43, which will be described later. Any component can be used for the cover part 42. For example, the cover part 42 may be a sensor cap. Note that the cover part 42 is not limited to a sensor cap, and any component can be used as long as it surrounds the sensor sensitive part 41 and has a connection port 43.

[0146] Here, in the second configuration, the cover part 42 forms a space (flow path) into the gas flow path 11 where the gas flowing in the gas flow path 11 flows in and flows out to the gas flow path 11. In this way, in the second configuration, two flow paths are formed in the gas flow path 11: a flow path (referred to as a "main flow path FC1") corresponding to the space other than the space in the cover part 42, and a flow path (also referred to as a "sub-flow path FC2") corresponding to the space in the cover part 42.

[0147] That is, in FIG. 13, the sub-channel FC2 corresponds to the space surrounded by the cover portion 42, and the main channel FC1 corresponds to the space of the gas channel 11 other than the space surrounded by the cover portion 42. Here, gas flows from the main channel FC1 into the sub-channel FC2, and the gas stays in the sub-channel FC2. As a result, the flow rate of the gas in the sub-channel FC2 becomes slower than the flow rate of the gas flowing through the main channel FC1, and the gas flows out from the sub-channel FC2 to the main channel FC1 in response to the flow of gas from the main channel FC1. Note that the flow rate in the sub-channel FC2 may be locally faster than the flow rate of the gas flowing through the main channel FC1, and the flow rate (e.g., average flow rate) of most of the gas in the sub-channel FC2 may be slower than the flow rate (e.g., average flow rate) of most of the gas flowing through the main channel FC1. That is, the gas passes through at least a part of the sub-channel FC2 at a flow rate slower than that of the main channel FC1. For example, the sub-channel FC2 may be a channel with a slower average flow rate than that of the main channel FC1. The gas flow path 11 includes a main flow path FC1 and a sub-flow path FC2 that is provided in the main flow path FC1 and through which the gas flowing in from the main flow path FC1 passes at a flow velocity slower than that of the main flow path FC1. For example, the gas flow path 11 includes a main flow path FC1 and a sub-flow path FC2 through which at least a part of the gas flowing in from the main flow path FC1 passes at a flow velocity slower than that of the main flow path FC1. Also, for example, the gas flow path 11 includes a main flow path FC1 and a sub-flow path FC2 whose average flow velocity is slower than that of the main flow path FC1.

[0148] 13, the sensor sensitive portion 41 is disposed in the sub-channel FC2. The sub-channel FC2 is configured to allow gas to pass through and to surround the sensor sensitive portion 41, and gas flows into the sub-channel FC2 from the main channel FC1. In the second configuration, the gas flows from the main channel FC1 into the sub-channel FC2, and the gas flows from the sub-channel FC2 to join the main channel FC1. The sub-channel FC2 is disposed on the bottom side of the main channel FC1.

[0149] Next, an example of turbulent flow generation in the second configuration will be described with reference to Fig. 14 and Fig. 15. Fig. 14 and Fig. 15 are diagrams showing an example of turbulent flow generation in the second configuration. Note that the same points as those described in Fig. 13 and the like will not be described as appropriate.

[0150] First, the state before the concentration gradient is eliminated (initial state) will be described with reference to Fig. 14. For example, Fig. 14 is a schematic diagram corresponding to the state before the concentration gradient is eliminated in the second configuration. Fig. 14 shows a case where gas GS51, which is defecation gas having a concentration gradient, flows from the first opening 12 (upstream) side to the second opening 13 (downstream) side as shown in the gas traveling direction RD.

[0151] In Fig. 14, the concentration gradient of gas GS51 is shown by hatching applied to gas GS51. That is, in Fig. 14, the shade of the hatching indicates the shade of the concentration, for example, the darker the hatching, the higher the concentration. Note that gas GS51 in Fig. 14 is a diagram for imagining a state in which defecation gas has a concentration gradient, and does not indicate that defecation gas is composed only of concentrations corresponding to the three hatchings as in Fig. 14.

[0152] 14, the concentration gradient of the gas in the gas flowing through the main flow path FC1 is shown by hatching in the concentration state IG511. That is, like the concentration state IG511 and gas GS51, the shade of the hatching indicates the shade of the concentration. Note that the concentration state IG511 in FIG. 14 is a diagram for imagining a state in which a gas concentration gradient occurs in the gas flowing through the main flow path FC1, like the gas GS51, and does not indicate that the gas in the gas flowing through the main flow path FC1 is composed only of concentrations corresponding to the three hatchings as in FIG. 14.

[0153] Fig. 14 corresponds to a state in which the gas GS51 flowing through the main flow path FC1 starts to flow into the sub-flow path FC2. That is, Fig. 14 corresponds to a state in which the gas GS51 starts to flow into the sub-flow path FC2, and a turbulent flow EF51 starts to occur in the sub-flow path FC2, and as shown in the concentration state IG512, the gas containing the gas does not sufficiently permeate the sub-flow path FC2. As time passes from the state in Fig. 14, the gas flows (penetrates) into the sub-flow path FC2, and stagnation occurs in the sub-flow path FC2.

[0154] Next, the state before the elimination of the concentration gradient will be described with reference to Fig. 15. For example, Fig. 15 is a schematic diagram corresponding to the state after the elimination of the concentration gradient in the second configuration. Note that the description of the same points as those described in Fig. 14 and the like will be omitted as appropriate.

[0155] In Fig. 15, a case is shown in which gas GS52, which is a defecation gas having a concentration gradient, flows from the first opening 12 (upstream) side to the second opening 13 (downstream) side as shown in the gas flow direction RD. Note that the hatching and other expressions of gas GS52 are the same as those of gas GS51 in Fig. 14, and therefore the explanation thereof will be omitted.

[0156] Fig. 15 corresponds to a state after time has elapsed from the state shown in Fig. 14 (state after elapse of time). In Fig. 15, as shown in concentration state IG521, a state in which there is a gas concentration gradient in the gas flowing through the main channel FC1 is maintained. Meanwhile, Fig. 15 corresponds to a state in which time has elapsed since gas such as gas GS52 started to flow into the sub-channel FC2, and the gas containing the gas has sufficiently spread within the sub-channel FC2. In Fig. 15, the flow rate of the sub-channel FC2 is slowed down, thereby making the concentration uniform.

[0157] As a result, the concentration of the gas around the sub-channel FC2 is uniformed, as shown by the concentration gradient in concentration state IG522 in Fig. 15. Note that the hatching and other expressions for concentration states IG521 and IG522 are similar to those for concentration state IG511 in Fig. 14, and therefore will not be described.

[0158] The biological information measuring system 1 having the second configuration can measure gas without being affected by the gas concentration gradient by performing the measurement in a state where the gas concentration gradient in the sub-channel FC2 is eliminated, as shown in Fig. 15. This allows the biological information measuring system 1 having the second configuration to perform appropriate gas measurement.

[0159] As described above, the bioinformation measuring system 1 having the second configuration separates the sensor sensitive portion 41 with the cover portion 42 that constitutes the secondary flow path FC2, and temporarily retains the defecation gas around the sensor sensitive portion 41 to homogenize the concentration gradient and enable accurate measurement by the gas sensor 40. Furthermore, since most of the flow rate passes through the main flow path FC1, the gas in the bowl portion 8 can be recovered in the gas flow path 11.

[0160] In the biological information measuring system 1 having the second configuration, the sensor sensitive part 41 including the sensor element and the like is isolated, so that the sensor sensitive part 41 can be isolated and exposed to gas, and a gas with a uniform concentration gradient can be applied. In addition, the biological information measuring system 1 having the second configuration is configured so that the gas in the sub-channel FC2 is exchanged with the gas in the main channel FC1, so that the gas can be continuously introduced and accurate measurement can be performed. In addition, in the biological information measuring system 1 having the second configuration, the sub-channel FC2 is disposed on the bottom side of the gas channel 11, so that the gas containing particles tends to flow downward due to the influence of gravity, and gas can be sent even to the sub-channel FC2 that is not provided with a fan, for example.

[0161] Furthermore, in order to enable accurate measurement by the gas sensor 40, the biological information measuring system 1 having the second configuration may have the following configuration.

[0162] For example, in biological information measuring system 1 having the second configuration, main flow path FC1 is provided with suction device 10 that sucks in gas within bowl portion 8, and sub-flow path FC2 does not necessarily have to be provided with suction device 10. As a result, in biological information measuring system 1 having the second configuration, main flow path FC1 quickly collects gas within bowl portion 8 and causes it to accumulate in sub-flow path FC2, allowing gas with a uniform concentration gradient to be applied to sensor sensitive portion 41 of gas sensor 40.

[0163] <1-8-2-1. Other aspects of the second configuration> The second configuration is not limited to the above, and any configuration can be adopted. An example of this point will be described with reference to Fig. 16. Fig. 16 is a diagram showing another example of the second configuration according to the embodiment.

[0164] The biological information measuring system 1 having the second configuration shown in Fig. 16 has a plurality of connection ports 43 including a connection port 43a and a connection port 43b through which the air inside can be circulated with the outside. The number of connection ports 43 is not limited to two, and may be three or more. That is, in the biological information measuring system 1 having the second configuration shown in Fig. 16, the sub-channel FC2 has at least two or more connection ports 43 that communicate with the main channel FC1.

[0165] The total cross-sectional area of ​​the connection ports 43 may be smaller than the cross-sectional area of ​​the main flow path FC1. For example, in Fig. 16, the total area of ​​the connection ports 43a and 43b is smaller than the cross-sectional area of ​​the internal space of the gas flow path 11 (a cross-section intersecting in the left-right direction in Fig. 16). In this way, the area of ​​the portion where the sub-flow paths FC2 and the main flow path FC1 communicate with each other through the connection port 43 is smaller than the cross-sectional area intersecting the gas flow direction in the main flow path FC1.

[0166] 16, the amount of accumulated gas can be controlled to a constant amount by changing the number of connection ports 43 provided in the sub-flow path FC2, without being affected by the sensitivity of the gas sensor 40 or the amount of gas sucked in. Furthermore, the biological information measuring system 1 having the second configuration shown in FIG. 16 can control the cycle of adsorption and desorption of fecal gas to the sensor sensitive part 41, and can facilitate quick cleaning of the gas sensor 40.

[0167] The above-described embodiments and modifications can be appropriately combined as long as the processing contents are not contradictory.

[0168] Further advantages and modifications may readily occur to those skilled in the art. Thus, the invention in its broader aspects is not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and equivalents thereof.

[0169] The above-described embodiments and modifications may have the following configurations, but are not limited to these. (1) A vital sign measuring system for measuring vital signs of a user of a toilet room based on fecal gas discharged into a bowl of a toilet bowl installed in the toilet room, comprising: a suction device that suctions gas in the bowl from which the fecal gas is discharged by a user of the toilet room; a gas flow path through which the gas sucked by the suction device passes; a gas detection device including a gas sensor that reacts to a gas contained in the gas passing through the gas flow path; a control device for controlling the suction device and the gas detection device; a pressure loss generating section that generates a higher pressure loss downstream of the gas sensor in a direction of flow of the gas passing through the gas flow passage; A biological information measuring system comprising: (2) The pressure loss at the location where the pressure loss generating portion is disposed in the gas flow path is the maximum. 3. A biological information measuring system according to claim 1. (3) The pressure loss generating portion is A pressure loss greater than that at the location of the gas sensor is generated. A biological information measuring system according to (1) or (2). (4) a concentration gradient adjusting section that generates a smaller pressure loss than the pressure loss generating section, the concentration gradient adjusting section being located upstream of an arrangement position of the gas sensor in the gas flow path; The biological information measuring system according to any one of (1) to (3), further comprising: (5) The pressure loss generating portion is Has a larger surface area than the gas sensor The biological information measuring system according to any one of (1) to (4) above. (6) The pressure loss generating portion is The concentration gradient adjusting portion has a larger surface area than the concentration gradient adjusting portion. The biological information measuring system according to (4) above. (7) The suction device comprises: The device is disposed upstream of the gas sensor, and mixes the defecation gas with the mixed gas in the bowl and supplies the mixed gas to the gas sensor. The biological information measuring system according to any one of (1) to (6) above. (8) The pressure loss generating portion is A deodorizing function is provided, and the deodorizing function is disposed at the most downstream position of the gas flow path. The biological information measuring system according to any one of (1) to (7) above. [Explanation of symbols]

[0170] 1. Biometric information measurement system 2 Toilet seat device 3 Main body 4. Measuring Equipment 5 Toilet Seat 6 Cleaning nozzle 7. Toilet 8 Bowl section 9 Toilet lid 10 Suction device 11 Gas flow path 12 1st opening (inlet) 13 2nd opening (outlet) 20 Gas detection equipment 40 Gas Sensor 50 Pressure loss generating part 100 Control device 110 Communications Department 120 Storage section 130 Control section 131 Acquisition Department 132 Processing section 133 Output section 200 Estimation means R Toilet room

Claims

1. A vital sign measuring system for measuring vital signs of a user of a toilet room based on fecal gas discharged into a bowl of a toilet bowl installed in the toilet room, comprising: a suction device that suctions gas in the bowl from which the fecal gas is discharged by a user of the toilet room; a gas flow path through which the gas sucked by the suction device passes; a gas detection device including a gas sensor that reacts to a gas contained in the gas passing through the gas flow path; a control device for controlling the suction device and the gas detection device; a pressure loss generating section that generates a higher pressure loss downstream of the gas sensor in a direction of flow of the gas passing through the gas flow passage; A biological information measuring system comprising:

2. The pressure loss at the location where the pressure loss generating portion is disposed in the gas flow path is the maximum.

2. The biological information measuring system according to claim 1.

3. The pressure loss generating portion is A pressure loss greater than that at the location of the gas sensor is generated.

2. The biological information measuring system according to claim 1.

4. a concentration gradient adjusting section that generates a smaller pressure loss than the pressure loss generating section, the concentration gradient adjusting section being located upstream of the gas sensor in the gas flow path; 2. The biological information measuring system according to claim 1, further comprising:

5. The pressure loss generating portion is Has a larger surface area than the gas sensor 2. The biological information measuring system according to claim 1.

6. The pressure loss generating portion is The concentration gradient adjusting portion has a larger surface area than the concentration gradient adjusting portion.

5. The biological information measuring system according to claim 4.

7. The suction device is The device is disposed upstream of the gas sensor, and mixes the defecation gas with the mixed gas in the bowl and supplies the mixed gas to the gas sensor.

2. The biological information measuring system according to claim 1.

8. The pressure loss generating portion is A deodorizing function is provided, and the deodorizing function is disposed at the most downstream position of the gas flow path.

8. The biological information measuring system according to claim 1, wherein the biological information measuring system comprises: a first detecting unit;

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