Biological information measurement system

Abstract

To control the suction flow rate of a defecation gas discharged into the bowl of a toilet basin and the number of times a gas sensor is processed in an appropriate range.SOLUTION: A biological information measurement system according to an embodiment comprises: a suction device for drawing in a defecation gas discharged into the bowl of a toilet basin installed in a toilet room; a gas flow path for letting the gas drawn in by the suction device pass through; a gas detection device equipped with a gas sensor that reacts to a prescribed gas component included in the gas passing through the gas flow path; and a control device for controlling the suction flow rate of the suction device. When the setting condition in the drive of the gas detection device is defined as y, the suction flow rate of the suction device is defined as x1(L / min), and the number of times a signal is processed when converting the electric signal detected by the gas detection device into a digital signal is defined as x2(Hz), and when the variables α,β, b in the formula below are defined respectively as 0.025≤α≤0.045, -11≤β≤-7, 1.5≤b≤3.0, then the expression 0≤y≤500 is satisfied. y=e(α*x1+β*x2+b).SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The disclosed embodiments relate to a biological information measurement system.

Background Art

[0002] Conventionally, there has been known a biological information measurement system that detects defecation gas discharged when a toilet user (hereinafter also referred to as "user") excretes feces, and measures the intestinal state of the user (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, there is room for improvement in the above-described conventional technology. For example, when the suction flow rate into the gas flow path where the gas sensor is disposed is large, the resolution of the gas sensor cannot catch up due to, for example, a rapid increase or decrease in concentration, and the possibility of being unable to perform accurate measurement increases. Further, for example, the number of signal processing times (sampling rate) when converting an electrical signal detected by the gas sensor into a digital signal, that is, the number of processing times of the gas sensor also affects the measurement accuracy. Therefore, it is desired to control both the suction flow rate of the defecation gas discharged into the bowl of the toilet and the number of processing times of the gas sensor within an appropriate range.

[0005] An object of the disclosed embodiments is to provide a biological information measurement system capable of controlling the suction flow rate of the defecation gas discharged into the bowl of the toilet and the number of processing times of the gas sensor within an appropriate range.

Means for Solving the Problems

[0006] A biological information measurement system according to one aspect of the embodiment includes a suction device that sucks defecation gas discharged into the bowl of a toilet installed in a 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 predetermined gas component contained in the gas passing through the gas flow path, and a control device that controls the suction flow rate of the suction device. When the set condition in the driving of the gas detection device is y, the suction flow rate of the suction device is x1 (L / min), and the number of signal processing times when converting the electrical signal detected by the gas detection device into a digital signal is x2 (Hz), in the following mathematical formula 1, when each of the variables α, β, and b satisfies 0.025 ≤ α ≤ 0.045, -11 ≤ β ≤ -7, and 1.5 ≤ b ≤ 3.0, it is characterized in that 0 ≤ y ≤ 500 is satisfied. [Mathematical formula 1] y = e (α*x1+β*x2+b)

[0007] According to the biological information measurement system according to one aspect of the embodiment, the suction flow rate of the suction device (hereinafter also referred to as "flow rate") is x1 (L (liter) / min (minute)), and the number of signal processing times (sampling rate) when converting the electrical signal detected by the gas detection device into a digital signal is x2 (Hz). In the above mathematical formula 1, when each of the variables α, β, and b satisfies 0.025 ≤ α ≤ 0.045, -11 ≤ β ≤ -7, and 1.5 ≤ b ≤ 3.0, by controlling the set condition y in the driving of the gas detection device to satisfy 0 ≤ y ≤ 500, the suction flow rate of the defecation gas discharged into the bowl of the toilet and the number of signal processing times (sampling rate) when converting the electrical signal detected by the gas detection device into a digital signal can be controlled within an appropriate range. In this way, the biological information measurement system can control the flow rate of the defecation gas and the number of processing times of the gas sensor within an appropriate range so that the set condition in the driving of the gas detection device satisfies the reference value by controlling to satisfy the above-described conditions.

[0008] According to the inventors' research, it has been found that the temporal variation in the ratio of odorless gas composed of hydrogen, methane, and carbon dioxide and malodorous gas composed of hydrogen sulfide and methyl mercaptan contained in fecal gas (excreted during defecation) indirectly captures the temporal variation in the intestinal environment. The intestinal environment is known to change according to changes in the type of diet, amount of exercise, etc. Therefore, in order to accurately estimate its state, it is important to more accurately measure the components of fecal gas, and the inventors have evolved them through hardware improvements. The suction device described in Patent Document 2 enables more fecal gas to be supplied to the gas sensor while preventing the fecal gas from diffusing outside the bowl. On the other hand, considering the relationship between the suction flow rate and the measurement accuracy, as the suction flow rate increases, there are problems such as the resolution of the gas sensor not being able to catch up with the rapid concentration change and the peak value not being accurately read (difficulty in obtaining an accurate sensor signal).

[0009] Therefore, in the biological information measurement system according to one aspect of the embodiment, by controlling to satisfy the above-described conditions, the above problems can be solved, and an increase in the possibility of inaccurate measurement can be suppressed.

[0010] In the biological information measurement system according to one aspect of the embodiment, the control device is characterized in that it controls the suction flow rate to be 50 L / min or more and 170 L / min or less.

[0011] For example, if the flow rate is 170 L / min or less, the defecation gas in the bowl can be aspirated without affecting the measurement accuracy. Also, as the suction flow rate decreases, the time for the sensor signal that has reached the peak to return to the baseline becomes longer, which is also recognized to affect the measurement of the next user. If the flow rate is 50 L / min or more, the time for the sensor signal that has reached the peak to return to the baseline can be controlled within a range that does not affect the measurement of the next user. Therefore, according to the biological information measurement system according to one aspect of the embodiment, by controlling the suction flow rate to be 50 L / min or more and 170 L / min or less, the suction flow rate of the defecation gas discharged into the bowl of the toilet can be controlled within an appropriate range. For example, the biological information measurement system controls so as to satisfy the above-described suction flow rate range, and as a result, the suction flow rate to the gas flow path where the gas sensor is disposed increases, and accurate measurement cannot be performed due to a rapid increase or decrease in concentration, or the suction flow rate to the gas flow path where the gas sensor is disposed decreases, thereby suppressing an increase in the possibility of affecting the measurement of the next user and making accurate measurement impossible. In this way, the biological information measurement system can suppress an increase in the possibility that accurate measurement cannot be performed.

[0012] In the biological information measurement system according to one aspect of the embodiment, the control device has a first control mode and a second control mode for controlling the suction flow rate, and is characterized in that the first control mode is executed when seated and the second control mode is executed after leaving the seat.

[0013] According to the biological information measurement system according to one aspect of the embodiment, by controlling the suction flow rate by a plurality of control modes, the suction flow rate can be appropriately controlled. For example, the biological information measurement system executes the second control mode after the user's defecation is completed and switches the flow rate to the maximum, thereby quickly discharging the defecation gas remaining in the flow path and controlling the time for the sensor signal that has reached the peak to return to the baseline within a range that does not affect the measurement of the next user. In this way, the biological information measurement system can suppress an increase in the possibility that accurate measurement cannot be performed.

[0014] In the biological information measurement system according to one aspect of the embodiment, the control device is characterized by controlling the sampling rate of the gas detection device at 0.2 Hz or more.

[0015] According to the biological information measurement system according to one aspect of the embodiment, by setting the sampling rate to 0.2 Hz or more, the measurement can be stabilized. As a result, the biological information measurement system can appropriately control the number of signal processing operations (sampling rate) when converting the electrical signal detected by the gas detection device into a digital signal.

[0016] In the biological information measurement system according to one aspect of the embodiment, the control device is characterized by controlling the flow velocity when the defecation gas passes through the gas sensor disposed in the gas flow path at 0.6 m / sec or more and 14 m / sec or less.

[0017] For example, if the flow velocity is 14 m / sec (seconds) or less, the defecation gas in the bowl can be sucked without affecting the measurement accuracy. Further, if the flow rate is 0.6 m / sec or more, the time for the sensor signal that has reached the peak to return to the baseline can be controlled within a range that does not affect the measurement of the next user. Therefore, according to the biological information measurement system according to one aspect of the embodiment, by controlling the flow velocity when the defecation gas passes through the gas sensor disposed in the gas flow path at 0.6 m / sec or more and 14 m / sec or less, the flow velocity when the defecation gas discharged into the bowl of the toilet passes through the gas sensor can be controlled within an appropriate range.

Effect of the Invention

[0018] According to one aspect of the embodiment, the suction flow rate of the defecation gas discharged into the bowl of the toilet and the number of processing operations of the gas sensor can be controlled within an appropriate range.

Brief Description of the Drawings

[0019]

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DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, embodiments of the biological information measurement system disclosed in the present application will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited by the embodiments shown below. In the present application, a gas derived from intestinal fermentation and indicating a high level of health is referred to as a healthy gas, and a gas derived from intestinal putrefaction and indicating a low level of health is referred to as an odorous gas.

[0021] For example, health-related gas is gas generated by fermentation of beneficial bacteria in the intestine. For example, health-related gas may be gas derived from intestinal fermentation and increasing in amount as the health level of the intestine is higher. As specific examples, health-related gas includes, as an example, hydrogen, carbon dioxide, acetic acid, methane, ethanol, water, etc.

[0022] Also, for example, odoriferous gas is gas generated by fermentation of harmful bacteria in the intestine. For example, odoriferous gas may be gas containing a sulfur component among defecation gases. Odoriferous gas includes, as an example, ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, indole, skatole, etc. Note that the defecation gas referred to here is gas emitted from the intestine, and for example, defecation gas includes gas emitted simultaneously with defecation and gas not emitted simultaneously with defecation.

[0023] <1. Embodiment> Hereinafter, after explaining the outline of the toilet room R serving as the gas collection location and the biological information measurement system 1, various processes executed by the biological information measurement system 1 and the configuration for performing the processes will be explained.

[0024] <1-1. Configuration Example of Toilet Room> First, the configuration of the biological information measurement system according to the embodiment will be described with reference to FIG. 1. FIG. 1 is a perspective view showing an example of the configuration of the biological information measurement system according to the embodiment. Note that in FIG. 1, in order to illustrate the configuration of the measurement device 4, it is illustrated in a state of passing through the toilet seat 5 and the toilet lid 9. Each of the upward, downward, forward, rearward, and lateral (left-right direction) indicated by arrows in FIG. 1 indicates the direction seen from the seating position of the user sitting on the toilet seat 5 arranged along the upper surface of the toilet bowl 7, that is, the user of the toilet bowl 7. For example, each of the upward, downward, forward, rearward, and lateral directions may be a direction centered on the opening of the toilet seat 5 on which the user of the toilet bowl 7 sits.

[0025] As shown in FIG. 1, a toilet bowl 7 is installed on the floor surface F in the toilet room R. In the following, the direction facing the space in the toilet room R from the floor surface F may be described as upward. In the toilet room R, components of the biological information measurement system 1 such as a measurement device 4 for performing gas detection including a suction device 10 and a gas detection device 20 are arranged.

[0026] The toilet bowl 7 is a so-called Western-style toilet bowl, and a bowl portion 8 is formed in the toilet bowl 7. The bowl portion 8 has a downwardly concave shape and is a part for receiving the user's excrement. Note that the toilet bowl 7 is not limited to the floor-mounted type as shown in the figure, and may be of any type as long as the biological information measurement system 1 can be applied, such as a wall-mounted type. A rim portion is provided over the entire circumference of the end of the opening facing the bowl portion 8 of the toilet bowl 7. In the toilet room R, for example, a cleaning water tank for storing cleaning water may be installed near the toilet bowl 7, or a so-called tankless type without a cleaning water tank may also be used.

[0027] For example, when a cleaning operation unit (not shown) provided in the toilet room R is operated by the user, toilet bowl cleaning is performed by supplying cleaning water to the bowl portion 8 of the toilet bowl 7. The cleaning operation unit may be an operation lever or a touch operation on a toilet bowl cleaning object displayed on the operation device 30. Note that the cleaning operation unit is not limited to one that performs toilet bowl cleaning manually by the user such as an operation lever, and may also be one that performs toilet bowl cleaning by detecting the human body of a sensor such as a seating sensor.

[0028] The toilet seat device 2 is attached to the upper part of the toilet bowl 7 and includes a main body portion 3, a measurement device 4, a toilet seat 5, and a cleaning nozzle 6. The toilet seat device 2 is placed on the upper part of the toilet bowl 7 in which the bowl portion 8 for receiving excrement is formed. The toilet seat device 2 is placed on the upper part of the toilet bowl 7 so that the cleaning nozzle 6 advances into the bowl portion 8 before spraying cleaning water. Note that the toilet seat device 2 may be detachably attached to the toilet bowl 7 or may be attached so as to be integrated with the toilet bowl 7.

[0029] The toilet seat device 2 measures the biological information of the user in the toilet room R based on the defecation gas discharged into the bowl portion 8 of the toilet 7 installed in the toilet room R by means of a configuration such as the measuring device 4. The measuring device 4 includes a suction device 10 and a gas detection device 20. The measuring device 4 will be described in detail with reference to FIG. 2.

[0030] As shown in FIG. 1, the toilet seat 5 is formed in a ring shape and is disposed at a position overlapping the opening of the toilet 7 along the end portion (rim portion) of the bowl portion 8. The user sits on the toilet seat 5. The toilet seat 5 functions as a seating portion that supports the buttocks of the seated user. Further, the toilet lid 9 is attached to the toilet seat device 2 as necessary, and the toilet seat device 2 may not have the toilet lid 9.

[0031] The cleaning nozzle 6 is a nozzle for discharging cleaning water. The cleaning nozzle 6 is configured to be able to move forward and backward with respect to the housing of the main body portion 3 by the drive of a drive source such as an electric motor (nozzle motor 61 etc. in FIG. 5). Further, the cleaning nozzle 6 is connected to a water source such as a water pipe (not shown). Then, as shown in FIG. 1, when the cleaning nozzle 6 is in the advanced position (also referred to as the "advanced position") with respect to the housing of the main body portion 3, water from the water source is jetted onto the user's body to clean the local area.

[0032] FIG. 1 shows a state where the cleaning nozzle 6 is in the advanced position. The cleaning nozzle 6 may also be shared for cleaning inside the toilet 7 (bowl portion 8 etc.). The cleaning nozzle 6 may be used to be switchable between a local cleaning mode for cleaning the user's local area and a toilet cleaning mode for sprinkling water into the toilet 7. For example, the cleaning nozzle 6 may be used to be switchable between the local cleaning mode and the toilet cleaning mode according to the control by the toilet seat device 2.

[0033] The operating device 30 is provided inside the toilet compartment R. The operating device 30 is provided at a position where the user can operate it. The operating device 30 is provided at a position where the user can operate it when sitting on the toilet seat 5. In FIG. 1, the operating device 30 is arranged on the left side wall surface W as seen from the user sitting on the toilet seat 5. Note that the operating device 30 may be arranged in various ways, not limited to the wall surface, as long as it can be used by the user sitting on the toilet seat 5. For example, the operating device 30 may be provided integrally with the toilet seat device 2.

[0034] The operating device 30 is communicably connected to the toilet seat device 2 by wire or wirelessly via a predetermined network. For example, the toilet seat device 2 and the operating device 30 may be connected in any connection as long as information can be transmitted and received, and may be communicably connected by wire or wirelessly.

[0035] The operating device 30 receives various operations from the user via a display surface (for example, the display screen 31), for example, by a touch panel function. Also, the operating device 30 may be provided with switches and buttons, and receive various operations by the switches, buttons, etc. 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. That is, the operating device 30 receives the user's input by the display screen 31 and also outputs to the user. The display screen 31 is a display device for displaying various information.

[0036] The operating device 30 receives the user's operation for controlling various functions provided inside the toilet compartment R. The operating device 30 receives the user's operation for controlling the execution of local cleaning by the toilet seat device 2. For example, the operating device 30 has switches, buttons, etc. for receiving the above-described user's operation, and may execute various processes according to the user's contact with the switches, buttons, etc. Note that the above is an example, and the operating device 30 may receive the operation by the user who executes various processes.

[0037] The biological information measurement system 1 measures the biological information of the user in the toilet room R based on the defecation gas discharged into the bowl portion 8 of the toilet 7 installed in the toilet room R by various configurations and processes described later. The biological information measurement system 1 executes control to appropriately measure the defecation gas. The biological information measurement system 1 may provide information to a user terminal (corresponding to the display means 300 in FIG. 3) such as a user's smartphone based on the information collected by measurement or the like. Further, the biological information measurement system 1 may provide information to the operating device 30 (or the display screen 31) of the toilet room R based on the information collected by measurement or the like.

[0038] <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 case where the measuring device 4 is arranged inside the main body portion 3 is shown as an example. In FIG. 2, the housing (cover) of the main body portion 3 at the location where the measuring device 4 is arranged is removed to illustrate the configuration of the measuring device 4. Each of the upward, forward, rearward, and lateral directions indicated by arrows in FIG. 2 is the same as the direction shown in FIG. 1.

[0039] The measuring device 4 includes a suction device 10 that sucks the gas in the bowl portion 8 of the toilet 7, a gas detection device 20 that detects the components of the sucked gas, and a deodorizing member 50. Here, the inflow portion 12 (bowl portion 8) side of the gas flow path 11 is the upstream, and the discharge portion 13 (outside the main body portion 3) side of the gas flow path 11 is the downstream.

[0040] The suction device 10 sucks the gas in the bowl portion 8 where the defecation gas is discharged by the user in the toilet room R. The suction device 10 sucks the gas in the bowl portion 8 into the gas flow path 11. The suction device 10 has a fan for sucking the gas in the bowl portion 8 of the toilet 7. The suction device 10 is arranged upstream of the deodorizing member 50.

[0041] The suction device 10 is disposed in a gas flow path 11 which is a flow path with the inflow portion 12 side communicating with the inside of the bowl portion 8 of the toilet 7. 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 which components such as the suction device 10 are disposed. The gas flow path 11 is, for example, a duct. The gas flow path 11 has an inflow portion 12 for allowing gas to flow into the gas flow path 11 and a discharge portion 13 provided on the downstream side of the inflow portion 12 for discharging the gas in the gas flow path 11 to the outside of the gas flow path 11.

[0042] The discharge portion 13 of the gas flow path 11 has an opening on one end (rear end) side of the gas flow path 11 and functions as a discharge port for allowing the gas in the gas flow path 11 to flow out (discharge) from the gas flow path 11 as schematically shown by the arrow OT in FIG. 2. As shown in FIG. 2, the discharge portion 13 is arranged to discharge the gas in the gas flow path 11 outside the toilet from a position behind the seating position of the user of the toilet. Here, the toilet is not limited to only the toilet 7 and may include a configuration necessary for enabling the user to excrete and processing the excretion. For example, the toilet may include the toilet 7 and the toilet seat 5. Further, for example, the toilet may include the toilet 7, the toilet seat 5, and the main body portion 3.

[0043] Also, the inflow portion 12 of the gas flow path 11 has an opening on the other end (front end) side (opposite side to the discharge portion 13) of the gas flow path 11 and functions as an inlet for allowing the gas in the bowl portion 8 to flow into the gas flow path 11 as schematically shown by the arrow IN in FIG. 2. In this way, the inflow portion 12 is arranged at a position where the defecation gas in the bowl portion 8 can be collected. The suction device 10 sucks the gas in the bowl portion 8 using the gas flow path 11 as a flow path by driving a fan. For example, the suction device 10 executes processing related to suction according to the control of the control device 100. When the suction device 10 is shared with a deodorizing device or the like incorporated in the toilet seat device 2, the suction device 10 may be controlled by a control means (device) different from the control device 100.

[0044] The gas detection device 20 executes processes related to the detection of the components of the gas sucked by the suction device 10. The gas detection device 20 is disposed between the inflow portion 12 and the discharge portion 13. In FIG. 2, the gas detection device 20 is disposed at the subsequent stage of the suction device 10 when viewed from the side of the bowl portion 8. Note that FIG. 2 is merely an example, and the gas detection device 20 may be disposed at any position as long as it is a position where the gas sucked by the suction device 10 can be introduced. The gas detection device 20 is disposed in the gas flow path 11 that communicates with the outside of the main body portion 3 on the discharge portion 13 side. For example, in response to the driving of the suction device 10, the gas in the gas flow path 11 is discharged to the outside of the gas flow path 11.

[0045] For example, the gas detection device 20 executes processes related to the detection of the gas according to the control of the control device 100. The gas detection device 20 includes a gas sensor 40 that reacts with the gas contained in the gas passing through the gas flow path 11. The gas sensor 40 detects a specific component of the gas.

[0046] The gas sensor 40 is disposed between the inflow portion 12 and the discharge portion 13. For example, the gas sensor 40 is disposed upstream of the deodorizing member 50 and separated from the deodorizing member 50. For example, a semiconductor type 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 odor gas sensor capable of detecting an odor 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 that is a hydrogen gas sensor, a gas sensor 40b that is an odor gas sensor, and a gas sensor 40c that is a methane gas sensor. When the gas sensors 40a to 40c are described without particular distinction, they are described as the gas sensor 40.

[0047] Note that the above is merely an example, and the gas sensor is not limited to the semiconductor type gas sensor 40, and any type of sensor may be used. For example, the gas detection device 20 may have an infrared absorption type gas sensor such as an infrared type CO2 sensor (carbon dioxide concentration measuring device).

[0048] The deodorizing member 50 is provided in the gas flow path 11 and has a function of deodorizing and removing the odor components of the defecation gas. For example, the deodorizing member 50 is a catalyst filter (deodorizing filter) that adsorbs off-odor gases such as odorous gases. The deodorizing member 50 is provided at the discharge part 13 of the gas flow path 11. For example, the deodorizing member 50 is attached to a mechanism for attaching the deodorizing member 50 provided at the discharge part 13 of the gas flow path 11, and thus is disposed at the discharge part 13, that is, the rearmost part of the gas flow path 11.

[0049] In addition, the deodorizing member 50 is detachably provided from outside the toilet bowl. As shown in FIG. 2, the deodorizing member 50 is exposed on the rear side of the main body part 3, and a person can access (contact) the deodorizing member 50 from the rear side of the main body part 3. Therefore, for example, when the deodorizing member 50 reaches the replacement timing, a person can access the deodorizing member 50 from the rear side of the main body part 3, remove the old deodorizing member 50 in use, and attach a new deodorizing member 50 to the discharge part 13 of the gas flow path 11.

[0050] In this way, the air from which gases such as odorous gases have been removed by the deodorizing member 50 due to the arrangement of the deodorizing member 50 is discharged to the outside of the main body part 3 included in the toilet bowl (the rear side of the main body part 3 in FIG. 2). Details such as the arrangement of the deodorizing member 50 will be described later. Further, the deodorizing member 50 may have a function of generating a pressure loss (also referred to as a "pressure loss generating function"). In this case, for example, the deodorizing member 50 may function such that the pressure loss generated when the gas passes is higher on the downstream side of the arrangement location of the gas sensor 40 with respect to the traveling direction of the gas passing through the gas flow path 11.

[0051] <1-3. Overall Outline Example of the Biological Information Measurement System> Next, an example of the overall outline of the biological information measurement system 1 will be described with reference to FIG. 3. FIG. 3 is a diagram showing an example of the overall outline of the biological information measurement system according to the embodiment. Each of the upward, downward, forward, rearward, and lateral directions indicated by arrows in FIG. 3 is the same as the directions shown in FIGS. 1 and 2. Note that descriptions of the same points as those described in FIGS. 1 and 2 will be omitted as appropriate.

[0052] In FIG. 3, the biological information measurement system 1 includes a suction device 10, a gas detection device 20, a deodorizing member 50, a control device 100, and an estimation means 200. In FIG. 3, in order to clearly show only the arrangement of the deodorizing member 50, a schematic diagram of the state where the deodorizing member 50 is arranged at the position (the rearmost part) of the discharge part 13 of the gas flow path 11 is illustrated, but the suction device 10 and the gas detection device 20 are also arranged in the gas flow path 11.

[0053] In FIGS. 1 and 2, the toilet seat device 2 is shown having the suction device 10, the gas detection device 20, and the control device 100, but the present invention is not limited to this. 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 them wirelessly or by wire. Further, as described above, the suction device 10 may be controlled by a control means different from the control device 100.

[0054] The estimation means 200 is a computer (information processing device) having a function of executing an estimation process 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 communicably 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, by wire or wirelessly via a predetermined network such as the Internet.

[0055] Further, the estimation means 200 is communicably connected to a device that displays information to the user, such as the display means 300, by wire or wirelessly via a predetermined network such as the Internet. Note that the estimation means 200 may be connected to devices such as the in-toilet device and the display means 300 in any manner as long as information can be transmitted and received, and may be communicably connected by wire or wirelessly. Note that the estimation means 200 may be communicable with the control device 100.

[0056] The estimation means 200 executes an estimation process regarding the health state of the user by using the information received from the in-toilet device. Note that 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 (also referred to as "health estimation information") for estimating the health state of the user or information related thereto based on the amounts of health-related gases and odoriferous gases in the user's excreted gas. The estimation means 200 calculates a score based on the ratio of the amount of health-related gases and the amount of odoriferous gases in the user's excreted gas as the health estimation information of the user. For example, the estimation means 200 may use any information such as a ratio, an individual odor, etc. Note that the above is merely an example, and the estimation means 200 may generate any information as the health estimation information of the user. For example, the estimation means 200 may generate the following information as the health estimation information of the user, or may generate health estimation information based on the following processing results.

[0057] For example, the estimation means 200 may estimate information regarding the state of the user's intestine from the measured values. For example, the estimation means 200 may estimate information regarding the state of bacteria. In this case, for example, the estimation means 200 may estimate the occupancy rate of a certain bacterium, 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 amounts of useful substances and harmful substances and their ratios, etc. For example, the estimation means 200 may estimate the state of the intestinal pH. Also, the estimation means 200 may generate information obtained by scoring the above information or evaluating it as good or bad. For example, the estimation means 200 may generate the above information as the health estimation information of the user.

[0058] Further, for example, the estimation means 200 may generate information regarding the user's health condition from the measurement values. In this case, for example, the estimation means 200 may generate information evaluating a score or good / bad regarding the user's intestinal environment. For example, the estimation means 200 may generate information regarding the user's intestinal environment. For example, the estimation means 200 may generate information regarding the user's immunity. For example, the estimation means 200 may generate information regarding the user's tendency to lose weight. For example, the estimation means 200 may generate information regarding the cholesterol index. For example, the estimation means 200 may generate information regarding the metabolic score. For example, the estimation means 200 may generate the above-described information as the user's health estimation information. Note that each of the above examples is merely illustrative, and the estimation means 200 may generate various information related to the user's health condition not limited to the above.

[0059] Based on the calculated ratio, the estimation means 200 estimates that the user is healthier as the amount of health-related gas in the user's defecation gas is greater than the amount of odorous gas. Based on the calculated ratio, the estimation means 200 estimates that the user is less healthy as the amount of odorous gas in the user's defecation gas is greater than the amount of health-related gas. 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 the information to be provided to the user to the display means 300. The estimation means 200 transmits the score calculated as the user's health estimation information to the display means 300 used by the user.

[0060] The estimation means 200 may be any device, not limited to a cloud server (server device). That is, the device configuration and arrangement of the estimation means 200 may adopt any form as long as the desired processing can be realized. For example, the estimation means 200 may be a portable terminal (device) such as a notebook computer that can be carried by the administrator of the biological information measurement system 1 or the like. Further, the estimation means 200 may be arranged in the toilet room R. For example, the estimation means 200 may have a configuration arranged in the toilet room R. For example, the function of the estimation means 200 may be provided in the toilet seat device 2. In this case, the control device 100 may have the function as the estimation means 200.

[0061] The display means 300 is a display device (computer) that displays information to be provided to the user. For example, the display means 300 may be a user terminal (mobile terminal) owned by the user (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 communicably connected, by wire or wirelessly, via a predetermined network to a device included in the biological information measurement system 1 such as the estimation means 200.

[0062] The display means 300 transmits and receives information to and from the estimation means 200. The display means 300 receives, from the estimation means 200, information to be provided to the user. The display means 300 receives, from the estimation means 200, the score calculated as the user's health estimation information. The display means 300 displays information including the score calculated as the user's health estimation information.

[0063] 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 time series for each date and time of excretion. The display means 300 displays the target value of the score, information indicating the change over time of the user's intestinal environment score, and character information indicating the evaluation thereof. For example, the display means 300 may request information from the estimation means 200 and display the information obtained from the estimation means 200.

[0064] Note that the above is merely an example, and the biological information measurement system 1 can adopt any device configuration as long as it can realize the desired processing. In the biological information measurement system 1, the toilet device 2 may have a configuration other than the display means 300. For example, the toilet device 2 may have a measurement device 4, a control device 100, and an estimation means 200. Further, for example, the display means 300 may or may not be included in the biological information measurement system 1. For example, when the display means 300 is the operation device 30 in the toilet room R, the display means 300 may be included in the biological information measurement system 1. In this case, the operation device 30 has a function of displaying the health estimation information of the user.

[0065] <1-4. User's Behavior and System Operation> Next, an example of the relationship between the movements (behaviors) of a user who uses the biological information measurement system 1 and the movements (operations) of the biological information measurement 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 the user and the operation of the system.

[0066] First, with reference to FIG. 4, the flow of the behavior of a user who uses the toilet room R to defecate will be described. The user of the toilet room R performs the behaviors in the first to seventh stages as shown in FIG. 4.

[0067] First, as the behavior in the first stage, the user performs the behavior of entering the toilet room R. The user who has entered the toilet room R performs the behavior of undressing in the toilet room R as the behavior in the second stage. The undressed user performs the behavior of sitting on the toilet seat 5 in the toilet room R as the behavior in the third stage. The user who has sat on the toilet seat 5 performs the behavior of defecating into the bowl portion 8 of the toilet bowl 7 as the behavior in the fourth stage.

[0068] As a fifth-stage action, the user who has defecated performs finishing actions such as using the local cleaning of the toilet seat device 2 and using toilet paper to keep the local area clean after defecation. The user who has completed the finishing after defecation performs a sixth-stage action of standing up and leaving the toilet seat 5. The user who has left the seat performs seventh-stage actions such as cleaning the toilet bowl 7, leaving the toilet room R, and checking the defecation gas analysis result by the biological information measurement system 1.

[0069] Next, the operation flow of the biological information measurement system 1 corresponding to the above-described actions of the user will be described. The biological information measurement system 1 starts gas suction before the user who enters the toilet room R starts defecation. In FIG. 4, the biological information measurement system 1 starts gas suction between the first stage and the third stage. Thereby, the biological information measurement system 1 completes the measurement preparation before the user defecates. For example, the biological information measurement system 1 sucks the gas (gas) in the bowl portion 8 before the user defecates to suck the gas serving as a reference (baseline) for comparison with the gas after the user defecates. For example, the biological information measurement system 1 calculates the increment (increase amount) from the baseline and estimates (calculates) the amount of the components contained in the defecation gas.

[0070] The biological information measurement system 1 executes the measurement of defecation gas while the seated user defecates and before leaving the seat. In FIG. 4, the biological information measurement system 1 executes the measurement of the user's defecation gas between before the fourth stage and the fifth stage. Thereby, the biological information measurement system 1 sucks the gas at any time while the user is seated and acquires data.

[0071] After the measurement of the excretory gas is completed, the biological information measurement system 1 performs an analysis of the excretory gas. In FIG. 4, the biological information measurement system 1 performs an analysis of the user's excretory gas between the sixth stage and the seventh stage. Thereby, after the user finishes defecation, the biological information measurement system 1 analyzes based on the information of the excretory gas (result) obtained about the user and calculates a score. The biological information measurement system 1 analyzes the user's excretory gas and provides the analysis result to the user. Note that the analysis and the provision of the result are not limited to the sixth stage to the seventh stage, and may be performed at any timing as long as the information can be provided. For example, the biological information measurement system 1 may provide various information such as analysis and results at any timing such as during measurement or immediately after the measurement is completed.

[0072] <1-5. Functional Configuration of 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 cleaning nozzle 6.

[0073] Note that the configuration of the toilet seat device 2 shown in FIG. 5 is merely an example. When each configuration is provided individually, 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 can adopt any configuration. The human sensor 32, the seating sensor 33, the illuminance sensor 34, etc. may be arranged at any location as long as desired sensing is possible. Also, the toilet seat device 2 only needs to be able to detect the user's seating on the toilet seat 5, and may have at least one of the human 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 wire or wirelessly through a communication device (such as the communication unit 110 of the control device 100 in FIG. 6).

[0074] The human presence sensor 32 has a function of detecting a human body. For example, the human presence sensor 32 is used as a sitting detection means for detecting the user's sitting on the toilet seat 5. For example, the human presence sensor 32 is realized by a pyroelectric sensor using an infrared signal or the like. For example, the human presence sensor 32 may be realized by a μ (micro) wave sensor or the like. For example, the human presence sensor 32 is an infrared transmission / reception type distance measuring sensor, and may detect a human body existing near the toilet seat 5 immediately before a person (user) sits on the toilet seat 5 or a user sitting on the toilet seat 5.

[0075] The human presence sensor 32 also functions as a standing-up detection sensor for detecting the user's standing up from the toilet seat 5. The human presence sensor 32 detects the sitting state of the user with respect to the toilet seat 5. The human presence sensor 32 outputs a detection signal to the control device 100. Note that the above is an example, and the human presence sensor 32 is not limited to the above, and may detect a human body by various means. For example, the human presence sensor 32 detects a person (such as a user) approaching the toilet seat 5.

[0076] The sitting sensor 33 has a function of detecting a person's sitting on the toilet seat device 2. For example, the sitting sensor 33 is used as a sitting detection means for detecting the user's sitting on the toilet seat 5. For example, the sitting sensor 33 is realized by a load sensor or the like. The sitting sensor 33 detects that the user has sat on the toilet seat 5. The sitting sensor 33 can detect the user's sitting on the toilet seat 5.

[0077] The sitting sensor 33 also functions as a standing-up detection sensor for detecting the user's standing up from the toilet seat 5. The sitting sensor 33 detects the sitting state of the user with respect to the toilet seat 5. Note that the above is an example, and the sitting sensor 33 is not limited to the above, and may detect a person's sitting on the toilet seat device 2 by various means. The sitting sensor 33 outputs a sitting detection signal to the control device 100.

[0078] The illuminance sensor 34 is a sensor that detects illuminance. For example, the illuminance sensor 34 is used as a seating detection means for detecting the user's seating 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.

[0079] The illuminance sensor 34 also functions as a seat-off detection sensor for detecting the user's getting off the toilet seat 5. The illuminance sensor 34 detects the seating state of the user with respect to the toilet seat 5. Note that the above is only an example, and the illuminance sensor 34 may be disposed at any position as long as the user's seating on the toilet seat 5 can be detected by the illuminance.

[0080] 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 and the like. The control device 100 may be any device as long as it has a configuration necessary for control, and may be, for example, a microcomputer or the like.

[0081] The control device 100 controls various configurations 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 by wire. Note that the control device 100 may transmit 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, it may transmit the control information of the gas detection device 20 to the toilet seat device 2 wirelessly. In this case, the gas detection device 20 may be controlled based on the control information received by the control device of the toilet seat device 2.

[0082] The control device 100 controls the suction device 10. For example, the control device 100 controls the start and stop of the suction of the suction device 10. The control device 100 transmits control information to the suction device 10 by wire. Note that the control device 100 may transmit 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, it may transmit the control information of the suction device 10 to the toilet seat device 2 wirelessly. In this case, the suction device 10 may be controlled based on the control information received by the control device of the toilet seat device 2.

[0083] In addition, the control device 100 controls various components of the biological information measurement system 1 other than the above. The control device 100 controls the nozzle motor 61 and the like. The control device 100 controls the nozzle motor 61 and the like based on the signal transmitted from the operation device 30.

[0084] The control device 100 controls the nozzle motor 61 based on the control instruction signal regarding local cleaning transmitted from the operation device 30. The control device 100 controls the nozzle motor 61 to move the cleaning nozzle 6 forward and backward. Note that the control device 100 may control not only the nozzle motor 61 but also various mechanisms. For example, the control device 100 controls the opening and closing of an electromagnetic valve having a function of controlling the flow of fluid by an electromagnetic method. For example, the control device 100 switches the supply and stop of tap water from a water supply pipe by controlling the electromagnetic valve.

[0085] The control device 100 transmits control information to the nozzle motor 61 and the like by wire. Note that the control device 100 may transmit control information to the nozzle motor 61 and the like wirelessly. For example, when the control device 100 is configured as a separate device from the toilet seat device 2, it may transmit the control information of the nozzle motor 61 and the like to the toilet seat device 2 wirelessly. In this case, the nozzle motor 61 and the like may be controlled based on the control information received by the control device of the toilet seat device 2.

[0086] Further, the control device 100 may control the toilet lid 9 and the 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 the signal transmitted from the operation device 30. The control device 100 controls the toilet lid 9 based on the control instruction signal regarding the opening and closing of the toilet lid transmitted from the operation device 30. The control device 100 controls the toilet seat 5 based on the control instruction signal regarding the opening and closing of the seating part transmitted from the operation device 30. The control device 100 transmits control information to the toilet lid 9 and the toilet seat 5 by wire. Note that the control device 100 may transmit control information to the toilet lid 9 and the toilet seat 5 wirelessly.

[0087] The control device 100 determines whether or not the user's seating is detected by seating detection means such as a human sensor 32, a seating sensor 33, and an illuminance sensor 34. The control device 100 determines whether or not the user's seating on the toilet seat 5 is detected based on the defecation behavior utilization prediction information based on the detection by the seating detection means acquired from the seating detection means.

[0088] The nozzle motor 61 is a drive source (motor) that drives the cleaning nozzle 6 to move forward and backward. The nozzle motor 61 executes control to move the cleaning nozzle 6 forward and backward with respect to the main body 3. The nozzle motor 61 executes control to move the cleaning nozzle 6 forward and backward in response to an instruction from the control device 100.

[0089] In the configuration shown in FIG. 5, a configuration in which the control device 100 and the like are included in the toilet seat device 2 is shown as an example. However, the control device 100, the human sensor 32, the seating sensor 33, the illuminance sensor 34, etc. may be configured as separate devices from the toilet seat device 2. For example, the control device 100 may be configured as a separate device from the toilet seat device 2. For example, the control device 100 may be a server device and may be arranged 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. Further, in this case, the toilet seat device 2 may have a configuration (control circuit, etc.) for controlling various configurations of the toilet seat device 2 such as the nozzle motor 61. Note that the above is only an example, and the biological information measurement system 1 can adopt any device configuration as long as the desired processing is possible.

[0090] <1-6. Functional Configuration of Control Device> The functional configuration of the control device will be described below 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 includes 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 other configurations may be used as long as they can realize desired processing. For example, the control device 100 may not include the communication unit 110.

[0091] 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. Note that 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.

[0092]

[0093] 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 processes. For example, the storage unit 120 stores information related to reference value control such as target values.

[0094] Returning to FIG. 6 and continuing the description, the control unit 130 is realized, for example, by a program (such as various information processing programs according to the present disclosure) stored inside the control device 100 being executed using a RAM or the like as a work area by an MPU (Micro Processing Unit), a CPU (Central Processing Unit), or the like. Further, the control unit 130 may be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0095] As shown in FIG. 6, the control unit 130 includes an acquisition unit 131, a processing unit 132, and an output unit 133, and realizes or executes the functions and operations 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 any other configuration may be used as long as it can perform the information processing described later.

[0096] 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 (such as detected information) detected by various sensors from the various sensors.

[0097] The acquisition unit 131 acquires information (such as detected information) detected by the seating detection means from the seating detection means. The acquisition unit 131 receives information (such as detected information) detected by at least one of the human sensor 32, the seating sensor 33, and the illuminance sensor 34 from that sensor.

[0098] The acquisition unit 131 acquires defecation behavior utilization prediction information based on the detection by the seating detection means. For example, the acquisition unit 131 acquires defecation behavior utilization prediction information indicating the seating of the user.

[0099] The processing unit 132 performs various processes. The processing unit 132 performs various processes using the information stored in the storage unit 120. The processing unit 132 controls the gas detection device 20.

[0100] The processing unit 132 performs calculation processing. The processing unit 132 performs calculation processing using various information stored in the storage unit 120. The processing unit 132 performs calculation processing using various information acquired by the acquisition unit 131.

[0101] The processing unit 132 calculates various information related to the gas. The processing unit 132 calculates a value based on the measurement value 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 indicating 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 Equation (1).

[0102] 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 indicating the relationship between the resistance value and the gas concentration.

[0103] The output unit 133 executes output processing for outputting various information. The output unit 133 functions as a transmission unit for transmitting various information. The output unit 133 executes output processing 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 a management device such as a personal computer or a smartphone used by the administrator of the estimation means 200. Further, the output unit 133 may execute output processing by transmitting information to the operation device 30 (or the display screen 31).

[0104] The output unit 133 transmits to the estimation means 200 various information used by the estimation means 200 for estimation processing. The output unit 133 transmits information indicating the measurement value measured by the gas detection device 20. The output unit 133 transmits information indicating the value calculated by the processing unit 132.

[0105] <1-7. Gas Sensor> Hereinafter, a configuration example of the gas sensor will be described with reference to FIG. 7. FIG. 7 is a diagram showing an example of the configuration of the gas sensor. Specifically, FIG. 7 is a diagram showing an example of the circuit configuration CR of the semiconductor type gas sensor 40.

[0106] The gas sensor 40 has a sensor element and a resistance element for measurement arranged therein. In FIG. 7, the gas sensor 40 has a circuit configuration CR in which a sensor element (corresponding to the sensor resistance RS in FIG. 7) and a resistance element for measurement (corresponding to the resistance element RL in FIG. 7) are connected in series.

[0107] In the semiconductor type gas sensor 40, a value related to the gas amount is calculated using the following formula (1). Formula (1) corresponds to the circuit configuration CR shown in FIG. 7 and is the same formula as the function FC1 in FIG. 7.

[0108] RS = ((Vc - Vout) / Vout) × RL … (1)

[0109] "RS" in formula (1) indicates the resistance value of the sensor element. For example, "RS" in formula (1) indicates the resistance value of the sensor resistance RS, which is an example of a value calculated based on the measurement by the gas sensor 40. Thus, formula (1) is a calculation formula for the resistance value.

[0110] "RL" in formula (1) indicates the resistance value of the resistance element RL. "Vc" in formula (1) indicates the voltage value of the circuit voltage Vc. "Vout" in formula (1) indicates the voltage value of the output voltage Vout in the resistance element. For example, "Vout" in formula (1) indicates the voltage value of the resistance element RL, which is an example of a measurement value measured by the gas sensor 40.

[0111] The resistance value of the sensor resistance RS in formula (1) is an index related to the gas amount. The biological information measurement system 1 calculates an index (resistance value) related to the gas amount from the measurement value (voltage value) and calculates the gas amount from the calculated resistance value. Although detailed explanations about the principle of the semiconductor type gas sensor and the like are omitted, for example, "RH" shown only in the circuit configuration CR of FIG. 7 corresponds to a heater (resistance) for heating the sensor element, and "V"H 」 corresponds to the voltage of the heater. Note that the gas sensor in the present invention is not limited to a semiconductor type sensor, and any sensor that satisfies the above formula (1) can be substituted.

[0112] <1-8. Relationship between suction flow rate and measurement> Hereinafter, based on the configuration of the biological information measurement system 1 described above, the measurement of gas will be described. First, the problems caused when the suction flow rate is not appropriate will be briefly described.

[0113] <1-8-1. When the suction flow rate is high> First, the case where the suction flow rate is high (the suction flow velocity is fast) will be described with reference to FIG. 8. FIG. 8 is a diagram showing an example when the suction flow rate is high. Specifically, FIG. 8 is a conceptual diagram showing an example of the problems that occur when the suction flow rate is high.

[0114] The graph GR11 in FIG. 8 shows an example of measurement when the suction device 10 is controlled by the control device 100 so that the suction flow rate of the suction device 10 increases when sucking the defecation gas in the bowl portion 8. The vertical axis represents the detection value (for example, the voltage value of the resistance element RL, etc.), and the horizontal axis represents time.

[0115] The actually measured value LN11 shown by the solid line in the graph GR11 is the value (actually measured value) actually detected (measured) by the gas sensor for the defecation gas sucked from the bowl portion 8 by the suction device 10 at a suction flow rate so high that the resolution of the gas sensor cannot catch up (for example, an amount more than 200 L / min). Also, the true measured value LN12 shown by the dotted line in the graph GR11 represents the value (true measured value) that should be originally detected (measured) when the defecation gas sucked from the bowl portion 8 by the suction device 10 is detected (measured) by the gas sensor.

[0116] As shown in the measured value LN11 and the true measured value LN12 of the graph GR11, when the suction flow rate of the suction device 10 is high, the difference between the measured value and the value that should be originally detected (measured) (true measured value) becomes large. Thus, when the suction flow rate of the suction device 10 is so high that the resolution of the gas sensor cannot catch up, and when the difference between the measured value and the true measured value is large, accurate measurement cannot be performed, and the possibility of accurate measurement being impossible increases.

[0117] <1-8-2. When the suction flow rate is low> Next, the case where the suction flow rate is low (the suction flow velocity is slow) will be described with reference to FIG. 9. FIG. 9 is a diagram showing an example when the suction flow rate is low. Specifically, FIG. 9 is a conceptual diagram showing an example of problems that occur when the suction flow rate is low.

[0118] The graph GR21 in FIG. 9 shows an example of measurement when the suction device 10 is controlled by the control device 100 so that the suction flow rate of the suction device 10 becomes low when sucking the defecation gas in the bowl portion 8. The vertical axis represents the detected value (for example, the voltage value of the resistance element RL, etc.), and the horizontal axis represents time.

[0119] The measured value LN21 shown by the solid line in the graph GR21 is the value (measured value) actually detected (measured) by the gas sensor for the defecation gas sucked from the bowl portion 8 by the suction device 10 at a suction flow rate that is so low that it takes time to return to the baseline and has little influence on the measurement of the next user (for example, an amount less than 10 L / min). Also, the baseline LN20 shown by the dotted line in the graph GR21 represents the detected value (baseline) of the gas sensor in a state where defecation gas is not detected.

[0120] As shown by the measured value LN21 of the graph GR21 and the baseline LN20, when the suction flow rate of the suction device 10 is low, it takes time for the gas sensor after measuring the defecation gas to return to the baseline. Thus, when the suction flow rate of the suction device 10 is so low that it takes time for the gas sensor after measuring the defecation gas to return to the baseline, until starting the measurement for the next user, the gas sensor has not returned to the baseline, increasing the possibility of affecting the measurement for the next user and making it impossible to perform accurate measurement.

[0121] <1-9. Control Example> As described above, the biological information measurement system 1 appropriately controls the suction flow rate and the like in order to suppress the increase in the possibility that accurate measurement cannot be performed due to rapid increase and decrease in concentration when the suction flow rate increases, or that accurate measurement cannot be performed due to the suction flow rate to the gas flow path where the gas sensor is disposed decreasing and affecting the measurement for the next user. Therefore, the biological information measurement system 1 controls the suction flow rate of the defecation gas discharged into the bowl portion 8 of the toilet bowl 7 within an appropriate range as follows.

[0122] <1-9-1. First Control Example> First, a first control example, which is an example of control for controlling the suction flow rate of the defecation gas discharged into the bowl portion 8 of the toilet bowl 7 within an appropriate range, will be described.

[0123] The control device 100 of the biological information measurement system 1 in the first control example performs control so as to satisfy 10 ≦ x ≦ 200 when the suction flow rate of the suction device 10 is x (L / min). For example, the control device 100 controls the suction flow rate during the suction operation of the suction device 10 so as to satisfy 10 L / min or more and 200 L / min or less. For example, the control device 100 controls the suction device 10 to suck the gas from the bowl portion 8 of the toilet bowl 7 to the gas flow path 11 at a desired suction flow rate.

[0124] The control device 100 may control the suction flow rate to be 50 L / min or more and 170 L / min or less. For example, the biological information measurement system 1 may perform suction for measurement by utilizing the power deodorization function of the toilet seat device 2. For example, the biological information measurement system 1 may use the gas suctioned during power deodorization corresponding to the second control mode described later for measurement.

[0125] For example, when the suction flow rate in the power deodorization of the toilet seat device 2 is 170 L / min, the biological information measurement system 1 uses the gas suctioned at a suction flow rate of 170 L / min in the power deodorization for measurement. Also, for example, when the suction flow rate in the power deodorization of the toilet seat device 2 is 160 L / min, the biological information measurement system 1 uses the gas suctioned at a suction flow rate of 160 L / min in the power deodorization for measurement. In this case, the control device 100 can perform suction at an appropriate flow rate for measurement while realizing the power deodorization function, which is a function of the toilet seat device 2. That is, the control device 100 can appropriately execute the functions of deodorization and measurement by common suction.

[0126] Further, the control device 100 may have a first control mode and a second control mode for controlling the suction flow rate, and execute the first control mode when seated and the second control mode after leaving the seat. In this case, when the control device 100 detects that the user has seated on the toilet seat 5, it controls the suction device 10 to execute the first control mode and perform suction by the suction device 10. For example, the control device 100 starts executing the first control mode at the timing when it detects that the user has seated on the toilet seat 5.

[0127] Also, when the control device 100 detects that the user has left the toilet seat 5, it controls the suction device 10 to execute the second control mode and perform suction by the suction device 10. For example, the control device 100 starts executing the second control mode at the timing when it detects that the user has left the toilet seat 5. For example, the control device 100 executes the second control mode for a predetermined period (for example, 60 seconds, etc.).

[0128] An example of the first control mode and the second control mode will be described with reference to FIG. 10. FIG. 10 is a diagram showing an example of the control mode. Note that descriptions of the same points as those described above will be omitted as appropriate.

[0129] In FIG. 10, the control device 100 controls the suction device 10 and executes the first control mode in which the suction device 10 performs suction at a suction flow rate of 90 L / min when the user sits on the toilet seat 5. Further, the control device 100 controls the suction device 10 and executes the second control mode in which the suction device 10 performs suction at a suction flow rate of 160 L / min when the user gets up from the toilet seat 5.

[0130] Note that the suction flow rates of the first control mode and the second control mode shown in FIG. 10 are merely examples, and the first control mode and the second control mode can be set to a desired suction flow rate in the range of, for example, 10 L / min or more and 200 L / min or less. For example, the second control mode may be used as power deodorization and may be set to an arbitrary suction flow rate in the range of 150 L / min or more and 170 L / min or less. Further, the control device 100 can control any mode, and the control device 100 may end the execution of the first control mode before the user gets up from the toilet seat 5, or may be switched from the first control mode to the second control mode before the user gets up from the toilet seat 5.

[0131] Further, the control device 100 controls the sampling rate of the gas detection device 20, which is the number of signal processing times when converting the electric signal detected by the gas detection device 20 into a digital signal, to be 0.2 Hz or more. An example of the sampling rate will be described with reference to FIG. 11. FIG. 11 is a diagram showing an example of the sampling rate. Note that descriptions of the same points as those described in FIG. 8 and the like will be omitted as appropriate.

[0132] The measured value LN31 indicated by the solid line corresponding to (0.1 Hz) in FIG. 11 and the true measured value LN32 indicated by the dotted line show the case where the sampling rate is controlled at 0.1 Hz. In the example of FIG. 11, when the sampling rate is controlled at 0.1 Hz, as shown in the measured value LN31 and the true measured value LN32, when the sampling rate is 0.1 Hz, the portion of the maximum value of the detected value is not included.

[0133] On the other hand, the measured value LN41 indicated by the solid line corresponding to (0.2 Hz) in FIG. 11 and the true measured value LN42 indicated by the dotted line show the case where the sampling rate is controlled at 0.2 Hz. In the example of FIG. 11, when the sampling rate is controlled at 0.2 Hz, as shown in the measured value LN41 and the true measured value LN42, when the sampling rate is 0.2 Hz, the portion of the maximum value of the detected value is also included. Thus, when the sampling rate is 0.2 Hz rather than 0.1 Hz (the higher sampling rate), the possibility of measurement error can be reduced. Therefore, it is desirable for the control device 100 to control the sampling rate of the gas detection device 20 at 0.2 Hz or higher.

[0134] The control device 100 controls the flow velocity when the defecation gas passes through the gas sensor disposed in the gas flow path 11 to be 0.6 m / sec or more and 14 m / sec or less. This will be described with reference to FIG. 12. FIG. 12 is a diagram showing an example of the calculation of the flow rate. Note that descriptions of the same points as those described above will be omitted as appropriate. As shown in FIG. 12, the (average) flow velocity v [m / s] is 3 obtained by dividing the volumetric flow rate Qv [m 2 / s] by the cross-sectional area [m

[0135] For example, the (average) flow velocity v [m / s] is the volumetric flow rate Qv [m 3 / s] of the location where the flow velocity is to be measured divided by the cross-sectional area [m 2It is calculated by dividing by []. For example, the flow velocity when passing through the gas sensor 40 disposed in the gas flow path 11 is calculated using the cross-sectional area of the pipe of the gas flow path 11 at the location where the gas sensor 40 is disposed and the volume flow rate at that location. For example, in the biological information measurement system 1, the control device 100 controls the suction device 10 so that the volume flow rate at the location where the gas sensor 40 is disposed satisfies the above flow velocity according to the cross-sectional area of the pipe of the gas flow path 11 at that location.

[0136] <1-9-2. Measurement result example> Here, the measurement performed based on the above-described control example and the measurement results (simulation results) based on the measurement will be described with reference to FIG. 13. FIG. 13 is a diagram showing an example of the measurement results. For example, FIG. 13 is a diagram showing the measurement results for each combination of the flow rate and the gas sensor measurement performance in the first control example. In the measurement shown in FIG. 13, the flow rate when passing through the gas sensor and the sampling rate of the gas sensor were changed to measure the defecation gas components, and the evaluation criteria for the measurement accuracy, measurement time, and data processing time were determined as shown in FIG. 13, and a comprehensive evaluation was performed.

[0137] In FIG. 13, the measurement results (evaluation) of the gas sensor measurement performance for each combination of the flow rate (suction flow rate) and the measurement interval (sampling rate), and the measurement results (evaluation) of the time for the gas sensor signal to return from the peak to the baseline with respect to the flow rate (suction flow rate) are shown. In FIG. 13, for the suction flow rate (L / min), the measurement results (evaluation) in 10 patterns of less than 10, 10, 30, 50, 70, 90, 110, 170, 200, and greater than 200 are shown. For the sampling rate, the measurement results (evaluation) in 4 patterns of 1 Hz, 0.5 Hz, 0.2 Hz, and 0.2 to 0.1 Hz are shown.

[0138] For example, in the measurement results shown in FIG. 13, for the sampling rate of "1 Hz", it corresponds to the measurement results when using a semiconductor gas sensor, and for the sampling rate of "0.5 Hz", it corresponds to the measurement results when using an infrared absorption gas sensor or an infrared semiconductor gas sensor. Also, in the measurement results shown in FIG. 13, for the sampling rates of "0.2 Hz" and "0.2 - 0.1 Hz", they correspond to the simulation results (predicted values) simulated based on the measurement results when using a semiconductor gas sensor with a sampling rate of "1 Hz".

[0139] In the measurement results (evaluation) of the gas sensor measurement performance shown in FIG. 13, the symbol "〇" indicates that the measurement error (measurement error) in the measurement with the combination of the flow rate (suction flow rate) corresponding to that cell and the measurement interval (sampling rate) is less than 10%. That is, the symbol "〇" indicates that in the measurement of defecation gas, all of the measurement accuracy, measurement time, and data processing time are within a sufficient range. For example, the symbol "〇" indicates that the evaluation of the gas sensor measurement performance for the combination of the flow rate (suction flow rate) corresponding to that cell and the measurement interval (sampling rate) is good. Note that the measurement error is shown as the error relative to the measurement result (measurement result) when measured at a predetermined high sampling rate. For example, the measurement error indicates the error relative to the measurement result when measured at a sampling rate of 5 Hz (0.2 seconds).

[0140] Also, in the measurement results (evaluation) of the gas sensor measurement performance shown in FIG. 13, the symbol "△" indicates that the measurement error (measurement error) in the measurement with the combination of the flow rate (suction flow rate) corresponding to that cell and the measurement interval (sampling rate) is 10% or more and 50% or less. That is, the symbol "△" indicates that in the measurement of defecation gas, the measurement accuracy is within the allowable range, and both the measurement time and the data processing time are within a sufficient range. For example, the symbol "△" indicates that the evaluation of the gas sensor measurement performance for the combination of the flow rate (suction flow rate) corresponding to that cell and the measurement interval (sampling rate) is acceptable (within the allowable range).

[0141] In addition, in the measurement results (evaluation) of the gas sensor measurement performance shown in FIG. 13, the symbol "×" indicates that the measurement error in the measurement with the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is greater than 50%. That is, the symbol "×" indicates that the measurement accuracy is insufficient in the measurement of defecation gas. For example, the symbol "×" indicates that the evaluation of the gas sensor measurement performance for the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is not acceptable (NG).

[0142] In addition, in the measurement results (evaluation) of the time for the gas sensor signal to return from the peak to the baseline shown in FIG. 13, the symbol "〇" indicates that the time for the gas sensor signal to return from the peak to the baseline at the flow rate (suction flow rate) corresponding to the grid is less than 120 seconds. That is, the symbol "〇" indicates that the time for the gas sensor signal to return from the peak to the baseline is less than the average value of the actual measurement time from when the user sits down until handwashing is completed. For example, the symbol "〇" indicates that the evaluation of the time for the gas sensor signal to return from the peak to the baseline at the flow rate (suction flow rate) corresponding to the grid is good. Note that the time for the gas sensor signal to return from the peak to the baseline depends on the suction flow rate regardless of the gas sensor (type, sampling rate, etc.). That is, the time for the gas sensor signal to return from the peak to the baseline varies according to the increase or decrease of the suction flow rate. For example, the smaller the suction flow rate, the longer the time becomes.

[0143] Also, in the measurement results (evaluation) of the time for the gas sensor signal shown in FIG. 13 to return from the peak to the baseline, the symbol "Δ" indicates that the time for the gas sensor signal to return from the peak to the baseline at the flow rate (suction flow rate) corresponding to that mesh is 120 seconds or more and 240 seconds or less. That is, the symbol "Δ" indicates that the time for the gas sensor signal to return from the peak to the baseline is within the assumed time range from the previous user's sitting down to the next user's sitting down. For example, the symbol "Δ" indicates that the evaluation of the time for the gas sensor signal to return from the peak to the baseline at the flow rate (suction flow rate) corresponding to that mesh is acceptable (within the allowable range).

[0144] Also, in the measurement results (evaluation) of the time for the gas sensor signal shown in FIG. 13 to return from the peak to the baseline, the symbol "×" indicates that the time for the gas sensor signal to return from the peak to the baseline at the flow rate (suction flow rate) corresponding to that mesh is greater than 240 seconds. That is, the symbol "×" indicates that the time for the gas sensor signal to return from the peak to the baseline is a time when the excrement gas of the previous user affects the measurement accuracy of the next user. For example, the symbol "×" indicates that the evaluation of the time for the gas sensor signal to return from the peak to the baseline at the flow rate (suction flow rate) corresponding to that mesh is unacceptable (NG).

[0145] According to the measurement results shown in FIG. 13, for the lower limit of the flow rate (suction flow rate), it is desirable that the evaluation of the time for the gas sensor signal to return from the peak to the baseline is not in the range of the symbol "×" (unacceptable), that is, the suction flow rate (L / min) is 10 or more.

[0146] Also, for the upper limit of the flow rate (suction flow rate), it is desirable that the evaluation of the gas sensor measurement performance is not in the range of the symbol "×" (unacceptable) for either the sampling rate "1 Hz" or the sampling rate "0.5 Hz", that is, the suction flow rate (L / min) is 200 or less.

[0147] Also, according to the measurement results shown in FIG. 13, for the lower limit of the flow rate (suction flow rate), the range in which the evaluation of the time for the gas sensor signal to return from the peak to the baseline is symbol "〇" (good), that is, it is more desirable that the suction flow rate (L / min) is 50 or more.

[0148] Also, for the upper limit of the flow rate (suction flow rate), it is more desirable that it is within the range where the power deodorization function of the toilet seat device 2 can be utilized, that is, the suction flow rate (L / min) is 170 or less.

[0149] Also, according to the measurement results shown in FIG. 13, when the gas sensor 40 is a semiconductor gas sensor and the sampling rate is 1 Hz or more, the range in which the evaluation of the time for the gas sensor signal to return from the peak to the baseline is not symbol "×" (not acceptable), and the range in which the evaluation of the gas sensor measurement performance is symbol "〇" (good), that is, it is desirable that the suction flow rate (L / min) is 10 or more and 200 or less. Note that for the upper limit of the flow rate (suction flow rate) in the semiconductor gas sensor, it may be 170 or less within the range where the power deodorization function of the toilet seat device 2 can be utilized.

[0150] Also, according to the measurement results shown in FIG. 13, when the gas sensor 40 is an infrared absorption type gas sensor and the sampling rate is 0.5 Hz or more, the range in which the evaluation of the time for the gas sensor signal to return from the peak to the baseline is not symbol "×" (not acceptable), and the range in which the power deodorization function of the toilet seat device 2 can be utilized, that is, it is desirable that the suction flow rate (L / min) is 10 or more and 170 or less.

[0151] <1-9-3.Second control example> Note that not limited to the first control example described above, the biological information measurement system 1 may perform control based on various conditions. For example, in addition to the suction flow rate, the number of signal processing times (sampling rate) when converting the electrical signal detected by the gas sensor into a digital signal also affects the measurement accuracy. Therefore, it is desired to control the suction flow rate of the defecation gas discharged into the bowl of the toilet and the processing times of the gas sensor within an appropriate range.

[0152] In such a case, control may be performed using predetermined setting conditions related to both the biological information measurement system 1, the suction flow rate, and the number of processing times (sampling rate, etc.) of the gas sensor. Hereinafter, a second control example, which is an example of control based on predetermined setting conditions, will be described. Note that descriptions of the same points as those described above will be omitted as appropriate. For example, descriptions of the same points as those in the first control example will be omitted as appropriate.

[0153] In the control device 100 of the biological information measurement system 1 in the second control example, the setting conditions (gas sensor setting conditions) in the drive of the gas detection device 20 are represented as y, the suction flow rate of the suction device 10 is represented as x1 (L / min), and the number of signal processing times (sampling rate) when converting the electrical signal detected by the gas detection device 20 into a digital signal is represented as x2 (Hz). In the following formula (2), when each of the variables α, β, and b is set such that 0.025 ≤ α ≤ 0.045, -11 ≤ β ≤ -7, and 1.5 ≤ b ≤ 3.0, control is performed so as to satisfy 0 ≤ y ≤ 500.

[0154] y = e (α*x1+β*x2+b) … (2)

[0155] For example, when each of the variables α, β, and b is set to a value within the above-described range, the control device 100 controls the suction flow rate of the suction device 10 and the sampling rate of the gas detection device 20 so that the value of y calculated by the above formula (2) is 0 or more and 500 or less.

[0156] <1-9-4. Measurement result example> Hereinafter, the measurement based on the above-described control example and the measurement result (simulation result) based on the measurement will be described with reference to FIG. 14. FIG. 14 is a diagram showing an example of the measurement result. For example, FIG. 14 is a diagram showing the gas sensor setting conditions for each combination of the flow rate and the gas sensor measurement performance in the second control example. In the measurement shown in FIG. 14, the simulation of the gas sensor setting conditions was performed by changing the flow rate when passing through the gas sensor and the sampling rate of the gas sensor, and the evaluation criteria for the measurement accuracy, the measurement time, and the data processing time were determined as shown in FIG. 14, and a comprehensive evaluation was performed. Note that the description of the same points as those described in FIG. 13 will be omitted as appropriate.

[0157] FIG. 14 shows the measurement result (evaluation) when the variable α in the above formula (2) is 0.043, the variable β is -8, and the variable b is 2.6. Note that the description of the flow rate (suction flow rate) and the measurement interval (sampling rate) shown in FIG. 14 is omitted because it is the same as that in FIG. 13.

[0158] In the measurement result (evaluation) of the gas sensor measurement performance shown in FIG. 14, the symbol "〇" indicates that the value of the gas sensor setting condition "y" in the measurement with the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is less than 100. That is, the symbol "〇" indicates that any of the measurement accuracy, the measurement time, and the data processing time in the fecal gas measurement is within a sufficient range. For example, the symbol "〇" indicates that the evaluation based on the gas sensor setting condition "y" of the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is good.

[0159] In the measurement results (evaluation) of the gas sensor measurement performance shown in FIG. 14, the symbol "Δ" indicates that the value of the gas sensor setting condition "y" in the measurement with the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is 100 or more and 500 or less. That is, the symbol "Δ" indicates that in the measurement of defecation gas, the measurement accuracy is within the allowable range, and both the measurement time and the data processing time are within a sufficient range. For example, the symbol "Δ" indicates that the evaluation based on the gas sensor setting condition "y" of the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is acceptable (within the allowable range).

[0160] In the measurement results (evaluation) of the gas sensor measurement performance shown in FIG. 14, the symbol "×" indicates that the value of the gas sensor setting condition "y" in the measurement with the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is greater than 500. That is, the symbol "×" indicates that in the measurement of defecation gas, the measurement accuracy is in an insufficient range. For example, the symbol "×" indicates that the evaluation based on the gas sensor setting condition "y" of the combination of the flow rate (suction flow rate) corresponding to the grid and the measurement interval (sampling rate) is unacceptable (NG).

[0161] According to the measurement results shown in FIG. 14, when the variable α is 0.043, the variable β is -8, and the variable b is 2.6, the evaluation based on the gas sensor setting condition "y" is not in the range of the symbol "×" (unacceptable) for either the sampling rate "1 Hz" or the sampling rate "0.5 Hz", that is, it is desirable that the suction flow rate (L / min) is 200 or less. Thus, when for the variable α, 0.025 ≤ α ≤ 0.045 including 0.043, for the variable β, -11 ≤ β ≤ -7 including -8, and for the variable b, 1.5 ≤ b ≤ 3.0 including 2.6, the evaluation based on the gas sensor setting condition "y" is not in the range of the symbol "×" (unacceptable) for either the sampling rate "1 Hz" or the sampling rate "0.5 Hz", that is, it is desirable that the suction flow rate (L / min) is 200 or less.

[0162] In addition, the above-described embodiments and modifications can be appropriately combined as long as the processing contents do not conflict with each other.

[0163] Further effects and modifications can be easily derived by those skilled in the art. Therefore, a broader aspect of the present invention is not limited to the specific details and representative embodiments described and represented as above. Accordingly, various changes can be made without departing from the spirit or scope of the general inventive concept defined by the appended claims and their equivalents.

[0164] Regarding each of the above-described embodiments and modifications, the following configurations may be possible, but are not limited thereto. (1) A suction device that sucks defecation gas discharged into the bowl of a toilet installed in a 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 predetermined gas component contained in the gas passing through the gas flow path, A control device that controls the suction flow rate of the suction device, Comprising, Let the set condition in the drive of the gas detection device be y, Let the suction flow rate of the suction device be x1 (L / min), Let the number of signal processing times when converting the electric signal detected by the gas detection device into a digital signal be x2 (Hz), And, In the following formula 1, when each of the variables α, β, and b is 0.025 ≤ α ≤ 0.045, -11 ≤ β ≤ -7, and 1.5 ≤ b ≤ 3.0, 0 ≤ y ≤ 500 Satisfying A biological information measurement system characterized by the above. [Formula 1] y = e (α*x1+β*x2+b) (2) The control device controls the suction flow rate at 50 L / min or more and 170 L / min or less. The biological information measurement system according to (1), characterized in that... (3) The control device has a first control mode and a second control mode for controlling the suction flow rate, executes the first control mode when seated, and executes the second control mode after getting up. The biological information measurement system according to (1) or (2), characterized in that... (4) The control device controls the sampling rate of the gas detection device at 0.2 Hz or more. The biological information measurement system according to any one of (1) to (3), characterized in that... (5) The control device controls the flow velocity when the defecation gas passes through the gas sensor disposed in the gas flow path at 0.6 m / sec or more and 14 m / sec or less. The biological information measurement system according to any one of (1) to (4), characterized in that...

Explanation of Signs

[0165] 1 Biological information measurement system 2 Toilet seat device 3 Main body part 4 Measuring device 5 Toilet seat 6 Cleaning nozzle 7 Toilet bowl 8 Bowl part 9 Toilet lid 10 Suction device 11 Gas flow path 12 Inflow part (inlet) 13 Discharge part (outlet) 20 Gas detection device 40 Gas sensor 50 Deodorizing member 100 Control device 110 Communication part 120 Storage part 130 Control part 131 Acquisition part 132 Processing part 133 Output part 200 Estimation means R Toilet room

Claims

1. A suction device that sucks defecation gas discharged into the bowl of a toilet installed in a 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 predetermined gas component contained in the gas passing through the gas flow path, a control device that controls the suction flow rate of the suction device, comprising: Let the set condition in the drive of the gas detection device be y, let the suction flow rate of the suction device be x1 (L / min), let the number of signal processing times when converting the electrical signal detected by the gas detection device into a digital signal be x2 (Hz), and in the following Mathematical Formula 1, when each of the variables α, β, and b satisfies 0.025 ≤ α ≤ 0.045, -11 ≤ β ≤ -7, and 1.5 ≤ b ≤ 3.0, 0 ≤ y ≤ 500 is satisfied, A biological information measurement system characterized by this. [Mathematical Formula 1] y = e （α＊ｘ１＋β＊ｘ２＋b）

2. The control device controls the suction flow rate to be 50 L / min or more and 170 L / min or less. The biological information measurement system according to Claim 1, characterized by this.

3. The control device has a first control mode and a second control mode for controlling the suction flow rate, executes the first control mode when seated, and executes the second control mode after leaving the seat. The biological information measurement system according to Claim 1, characterized by this.

4. The control device controls the sampling rate of the gas detection device to be 0.2 Hz or more. The biological information measurement system according to Claim 1, characterized by this.

5. The control device controls the flow velocity when the defecation gas passes through the gas sensor disposed in the gas flow path to be 0.6 m / sec or more and 14 m / sec or less. The biological information measurement system according to any one of Claims 1 to 4, characterized by this.

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