Toilet System

Abstract

To provide a toilet system capable of providing a health index of a user, and suppressing a health index which does not correctly reflect a real health status of the user from being output as one which correctly reflects.SOLUTION: A toilet system includes: a toilet seat having a seating face on which a user is seated; a sensor disposed in the toilet seat and measuring a physical quantity reflecting blood flow information of the user; a health index calculation part for calculating a health index of the user based on a measurement result of the sensor; a health index output part for outputting the health index of the user calculated by the health index calculation part; a temperature determination part for determining whether or not a temperature condition of the seating face corresponds to a prescribed condition; and an operation change command part for changing an operation content of the health index calculation part and / or an operation content of the health index output part when the temperature condition of the seating face corresponds to the prescribed condition by the temperature determination part.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a toilet system that can provide a health indicator for a user. [Background technology]

[0002] Patent Document 1 discloses a system that measures blood flow information of a toilet user who is seated on a toilet seat, and calculates and outputs a health index based on the measurement results (for example, displays it on a display terminal). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-68396 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present invention have discovered that the temperature of the toilet seat can significantly affect the state of blood flow of a toilet user sitting on the toilet seat.

[0005] For example, a laser sensor that can measure the blood flow state in the skin on the back of the user's thigh based on dynamic light scattering can be attached to the toilet seat, and by performing a Fourier transform or the like on the output signal of the laser sensor, health indicators such as pulse wave, blood flow rate, and heart rate can be calculated.

[0006] The inventors of the present invention have found that, for example, when a user sits on a cold toilet seat during the cold winter months, the user's blood flow may be impaired, and the health index calculated based on this blood flow condition may not accurately reflect the user's actual health condition. In other words, if the accuracy of the health index calculation is reduced due to measuring the blood flow condition on a cold toilet seat, the output results of the health index may vary even if the user's health condition remains unchanged during daily health management at the toilet, causing unnecessary confusion and dismay for the user. This may undermine the reliability of the health index providing system. Furthermore, if the temperature of the toilet seat is raised significantly in a short period of time, the temperature of the toilet seat can have a significant effect on the blood flow of the user sitting on the seat, which can cause a large change (gradient) in the user's blood flow. The blood flow measured under such conditions may not accurately reflect the user's daily blood flow, and health indicators calculated based on such blood flow may not accurately reflect the actual health state.

[0007] The present invention was devised based on the above findings, and an object of the present invention is to provide a toilet system that can provide a health index for a user and can prevent a health index that does not accurately reflect the user's actual health condition from being output as an index that accurately reflects the user's actual health condition. [Means for solving the problem]

[0008] The present invention is a toilet system comprising: a toilet seat having a seating surface on which a user sits; a sensor provided on the toilet seat for measuring physical quantities reflecting the user's blood flow information; a health index calculation unit for calculating a health index of the user based on the measurement results of the sensor; a health index output unit for outputting the health index of the user calculated by the health index calculation unit; a temperature determination unit for determining whether the temperature state of the seating surface meets predetermined conditions; and an operation change command unit for changing the operation content of the health index calculation unit and / or the operation content of the health index output unit when the temperature determination unit determines that the temperature state of the seating surface meets the predetermined conditions.

[0009] According to the present invention, when the temperature determination unit determines that the temperature state of the seating surface meets a predetermined condition, the operation of the health index calculation unit and / or the operation of the health index output unit are changed. Specifically, for example, when the temperature of the seating surface is determined to be 20°C or below during cold winter months, the output of a health index that is likely to not accurately reflect the user's health state is stopped, or error information indicating that the health index is likely to not accurately reflect the user's health state is output together with (or instead of) the health index, or the calculation operation of the health index calculation unit is corrected according to the temperature state of the seating surface. This effectively prevents a health index that is likely to not accurately reflect the user's actual health state from being output as an accurate reflection, for example, when sitting on a cold toilet seat during cold winter months.

[0010] Specifically, for example, it is preferable that the temperature determination unit determines whether the temperature state of the seating surface is below a predetermined first threshold (for example, below 10°C), and the operation change command unit stops the output operation of the health index output unit when the temperature determination unit determines that the temperature state of the seating surface is below the first threshold.

[0011] This prevents the output of health indicators that are likely to not accurately reflect the user's actual health condition, effectively preventing unnecessary confusion or upset for users who, for example, use the health indicators obtained by the toilet system to manage their health on a daily basis.

[0012] Alternatively, for example, it is preferable that the temperature determination unit determines whether the temperature state of the seating surface is below a predetermined second threshold (for example, below 10°C), and the operation change command unit causes the health index output unit to output error information when the temperature determination unit determines that the temperature state of the seating surface is below the second threshold.

[0013] This allows error information to be output along with (or instead of) a health index that is likely to not accurately reflect the user's actual health condition, effectively preventing unnecessary confusion or upset for users who, for example, use the health index obtained by the toilet system to manage their health on a daily basis.

[0014] Alternatively, for example, it is preferable that the temperature determination unit determines whether the temperature state of the seating surface is within a predetermined third range (e.g., 0°C to 20°C), and the operation change command unit corrects the calculation operation of the health index calculation unit (e.g., switches the health index calculation program) when the temperature determination unit determines that the temperature state of the seating surface is within the third range.

[0015] This prevents the calculation of a health index that is likely to not accurately reflect the user's actual health condition, effectively preventing unnecessary confusion and upset for users who, for example, use the health index obtained by the toilet system to manage their health on a daily basis.

[0016] The information used by the temperature determination unit as the basis for the determination is, for example, the measurement result of a temperature sensor that measures the temperature of the seating surface. That is, in a preferred embodiment, the toilet system of the present invention further includes a temperature sensor that measures the temperature of the seating surface, and the temperature determination unit determines whether the temperature state of the seating surface satisfies a predetermined condition based on the measurement result of the temperature sensor.

[0017] According to this, the temperature of the seating surface can be directly measured (grasped), and therefore the temperature determination unit can perform determination with high accuracy.

[0018] Alternatively, the information used by the temperature determination unit as the basis for the determination may be, for example, the measurement results of a room temperature sensor that measures the ambient temperature of the seating surface. That is, in a preferred embodiment, the toilet system of the present invention further includes a room temperature sensor that measures the ambient temperature of the seating surface, and the temperature determination unit determines whether the temperature state of the seating surface satisfies a predetermined condition based on the measurement results of the room temperature sensor.

[0019] In this case, the temperature of the seating surface can also be determined with some degree of accuracy.

[0020] Alternatively, the information used by the temperature determination unit as the basis for its determination may be, for example, meteorological information (particularly temperature information) for the area including the home or facility where the toilet system is installed. That is, in a preferred embodiment, the temperature determination unit determines whether the temperature state of the seating surface meets a predetermined condition based on such meteorological information. The meteorological information can be received by the toilet system via the Internet or the like and updated at appropriate times.

[0021] In this case, the temperature of the seating surface can also be determined with some degree of accuracy.

[0022] Alternatively, the information used by the temperature determination unit as the basis for the determination may be, for example, the operating status of a heater that heats the seating surface. Specifically, when the heater is turned on, the preset temperature of the heater (if multiple temperature settings are possible, the preset temperature of the set temperature) can be used in the present invention as the temperature state of the seating surface. That is, in a preferred embodiment, the toilet system of the present invention further includes a heater that heats the seating surface, and the temperature determination unit determines whether the temperature state of the seating surface satisfies a predetermined condition based on the operating status of the heater.

[0023] When the heater is turned off, the temperature state of the seating surface can be estimated based on a temperature transition curve predicted from the heater's set specification temperature depending on the elapsed time since the heater was turned off. After a sufficient amount of time has passed since the heater was turned off, the other information mentioned above (measurement results by the temperature sensor, measurement results by the room temperature sensor, weather information) can be used as the basis for judgment.

[0024] Alternatively, the information used by the temperature determination unit as the basis for its determination may be, for example, the measurement result of a timer that measures the time the user sits on the seat. Specifically, if the user sits for more than 10 seconds, 36°C (average body temperature) can be used in the present invention as the temperature state of the seat (even a cold seat in winter can be warmed by the user's body temperature). That is, in a preferred embodiment, the toilet system of the present invention further includes a timer that measures the time the user sits on the seat, and the temperature determination unit determines whether the temperature state of the seat meets a predetermined condition based on the measurement result of the timer.

[0025] The present invention also provides a toilet system comprising: a toilet seat having a seating surface on which a user sits; a sensor provided on the toilet seat for measuring a physical quantity reflecting blood flow information of the user; a health index calculation unit for calculating a health index of the user based on the measurement results of the sensor; a health index output unit for outputting the health index of the user calculated by the health index calculation unit; a temperature determination unit for determining whether the temperature state of the seating surface meets a predetermined condition; a heater for heating the seating surface; a memory unit for storing information on whether the user desires a health index output; and a heater control unit for changing the driving mode of the heater when the temperature determination unit determines that the temperature state of the seating surface meets the predetermined condition and when the memory unit stores information that the user desires a health index output.

[0026] According to the present invention, when the temperature determination unit determines that the temperature state of the seating surface meets a predetermined condition and the memory unit stores information indicating that the user desires to output a health index, the heater's driving mode is changed. Specifically, for example, when the seating surface temperature is determined to be 20°C or lower during cold winter months and the user desires to output a health index, the heater is turned on if it was off, or the heater's set temperature or set temperature level is increased if it was on and was insufficient. This effectively prevents a health index that likely does not accurately reflect the user's actual health condition from being output as a correct one, for example, when the user sits on a cold toilet seat during cold winter months.

[0027] The present invention also provides a method for providing a health index using a toilet system including a toilet seat having a seating surface on which a user sits, and a sensor provided on the toilet seat for measuring physical quantities reflecting blood flow information of the user, the method comprising: a health index calculation step for calculating the health index of the user based on the measurement results of the sensor; a health index output step for outputting the health index of the user calculated by the health index calculation step; a temperature determination step for determining whether the temperature state of the seating surface meets a predetermined condition; and an operation change command step for changing the operation content of the health index calculation step or the operation content of the health index output unit when it is determined by the temperature determination step that the temperature state of the seating surface meets the predetermined condition.

[0028] The present invention also provides a program for providing a health index using a toilet system including a toilet seat having a seating surface on which a user sits, and a sensor provided on the toilet seat for measuring physical quantities reflecting the user's blood flow information, wherein the program is executed by a computer to perform the following steps: a health index calculation step for calculating the user's health index based on the measurement results of the sensor; a health index output step for outputting the user's health index calculated by the health index calculation step; a temperature determination step for determining whether the temperature state of the seating surface meets a predetermined condition; and an operation change command step for changing the operation content of the health index calculation step or the operation content of the health index output unit when it is determined by the temperature determination step that the temperature state of the seating surface meets the predetermined condition.

[0029] The present invention also provides a method for providing a health index using a toilet system including a toilet seat having a seating surface on which a user sits, a sensor provided on the toilet seat for measuring physical quantities reflecting blood flow information of the user, a memory unit for storing information on whether the user desires a health index output, and a heater for heating the seating surface, the method comprising: a health index calculation step for calculating the health index of the user based on the measurement results of the sensor; a health index output step for outputting the health index of the user calculated by the health index calculation step; a temperature determination step for determining whether the temperature state of the seating surface meets a predetermined condition; and a heater control step for changing the driving mode of the heater when the temperature determination step determines that the temperature state of the seating surface meets the predetermined condition and the memory unit has stored information that the user desires a health index output.

[0030] The present invention also provides a program for providing a health index using a toilet system including a toilet seat having a seating surface on which a user sits, a sensor provided on the toilet seat for measuring physical quantities reflecting the user's blood flow information, a memory unit for storing information on whether the user desires a health index output, and a heater for heating the seating surface. When the program is executed by a computer, the program can perform the following steps: a health index calculation step for calculating the user's health index based on the measurement results of the sensor; a health index output step for outputting the user's health index calculated by the health index calculation step; a temperature determination step for determining whether the temperature state of the seating surface meets a predetermined condition; and a heater control step for changing the driving mode of the heater when the temperature determination step determines that the temperature state of the seating surface meets the predetermined condition and the memory unit has stored information that the user desires a health index output. The present invention also provides a toilet system comprising: a toilet seat having a seating surface on which a user sits; a sensor provided on the toilet seat for measuring a physical quantity reflecting the user's blood flow information; a heater for heating the seating surface; and a heater control unit for controlling the operation of the heater while the sensor is measuring the physical quantity. According to the present invention, during measurement by the sensor, the heater control unit controls the operation of the heater, thereby making it possible to bring the temperature state of the seating surface on which the user sits closer to or maintain it within a desired temperature range with greater precision, for example. Specifically, for example, if the heater is driven too little compared to the room temperature in the toilet room (which can happen when the energy saving mode is set), the blood flow state of the user sitting on the toilet seat will be affected (changed) by the seating surface, which will likely be cooler than body temperature (skin temperature); conversely, if the heater is driven too much (which can happen when the rapid heating mode is set), the blood flow state of the user sitting on the toilet seat will be affected (changed) by the seating surface, which may temporarily be warmer than body temperature (skin temperature). Furthermore, it is conceivable that the temperature range that the seating surface must meet in order to accurately measure the user's daily blood flow status may be stricter than the temperature range that the seating surface must meet in order to avoid discomfort to the user sitting on the toilet seat. In such cases, it is very effective for the heater control unit to control the heater operation during measurement by the sensor so that the seating surface meets the latter temperature range (for example, so that the temperature range is closer to body temperature (human skin temperature)). [Effects of the Invention]

[0031] According to one aspect of the present invention, when the temperature determination unit determines that the temperature state of the seating surface meets a predetermined condition, the operation of the health index calculation unit and / or the operation of the health index output unit are changed. Specifically, for example, if the temperature of the seating surface is determined to be 20°C or below during cold winter months, the output of a health index that is likely to not accurately reflect the user's health state is stopped, or error information indicating that the health index is likely to not accurately reflect the user's health state is output together with (or instead of) the health index, or the calculation operation of the health index calculation unit is corrected according to the temperature state of the seating surface. This effectively prevents a health index that is likely to not accurately reflect the user's actual health state from being output as an accurate reflection, for example, when sitting on a cold toilet seat during cold winter months.

[0032] Alternatively, according to another aspect of the present invention, when the temperature determination unit determines that the temperature state of the seating surface meets a predetermined condition and the memory unit stores information indicating that the user desires to output a health index, the heater's driving mode is changed. Specifically, for example, when the seating surface temperature is determined to be 20°C or lower during cold winter months and the user desires to output a health index, the heater is turned on if it was off, or the heater's set temperature or set temperature level is increased if it was on and was insufficient. This effectively prevents a health index that likely does not accurately reflect the user's actual health condition from being output as a correct one, for example, when the user sits on a cold toilet seat during cold winter months. Alternatively, according to another aspect of the present invention, during measurement by the sensor, the heater control unit controls the operation of the heater, thereby making it possible to bring the temperature state of the seating surface on which the user sits closer to or maintain it within a desired temperature range with greater accuracy, for example. [Brief explanation of the drawings]

[0033] [Figure 1]1 is a schematic perspective view of a toilet system according to an embodiment of the present invention; [Figure 2] 2 is an exploded perspective view of the toilet seat of the toilet system of FIG. 1. [Figure 3] FIG. 2 is a schematic block diagram showing the main parts of the toilet system of FIG. 1. [Figure 4] FIG. 2 is a diagram showing a schematic configuration of a laser sensor in the toilet system of FIG. 1. [Figure 5] 5 is a schematic diagram showing a process for calculating various health indicators based on the measurement results of the laser sensor in FIG. 4. [Figure 6] 4 is a flowchart showing a first operation example of the toilet system of FIG. [Figure 7] 10 is a flowchart showing a second operation example of the toilet system of FIG. [Figure 8] 10 is a flowchart showing a third operation example of the toilet system of FIG. [Figure 9] 10 is a flowchart showing a further modification of the third operation example of the toilet system of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0034] (composition) An embodiment of the present invention will be described below with reference to the accompanying drawings. Fig. 1 is a schematic perspective view of a toilet system 10 according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of a toilet seat 20 of the toilet system 10 of Fig. 1, and Fig. 3 is a schematic block diagram showing the main parts of the toilet system 10 of Fig. 1.

[0035] 1 to 3, the toilet system 10 of this embodiment comprises a toilet seat 20, a main body 12, and a toilet lid 14. The toilet seat 20 and the toilet lid 14 are each pivotally supported relative to the main body 12.

[0036] The toilet seat 20 is provided with a laser sensor 40 as a sensor that measures a physical quantity that reflects the user's blood flow information, and an electrostatic sensor 50 as a seating sensor. The toilet seat 20 is also provided with a health index calculation unit 60 (specifically, for example, a microprocessor) that calculates the user's health index based on the measurement results of the laser sensor 40. Furthermore, the toilet seat 20 of this embodiment is provided with a temperature thermistor 65 (an example of a temperature sensor) that measures the temperature of the toilet seat 20.

[0037] The toilet seat 20 has an opening 20a. In this embodiment, the O-shaped opening 20a is formed in the center of the toilet seat 20. The opening of the toilet seat 20 is not limited to an O-shape and may be a U-shape or the like. The outer edge of the toilet seat 20 is curved to fit the outer shape of the toilet bowl 4. The toilet seat 20 is generally made of an opaque resin material (e.g., polypropylene), and has a seating surface 21 on which a user sits, and a bottom surface 25 on the opposite side of the seating surface 21.

[0038] The seating surface 21 is the surface that faces upward when the toilet seat 20 is placed on the upper surface 4b of the toilet bowl 4, and is the surface on which the user sits. The bottom surface 25 is the surface that faces the upper surface 4b of the toilet bowl 4 when the toilet seat 20 is lowered. The toilet seat 20 is also made up of a thick portion 22 that is formed thick over almost the entirety, and a thin portion 23 that is thinner than the thick portion 22 is formed locally at a position corresponding to the laser sensor 40.

[0039] As shown in Figure 2, a heater wire 30 (an example of a heater) that heats or keeps warm the seating surface 21, and a heat insulating material 32 are provided inside the toilet seat 20. The heater wire 30 is controlled by a toilet seat heating unit 12b provided inside the main body 12, and is laid throughout the toilet seat 20 so as not to interfere with the laser sensor 40, the electrostatic sensor 50, the health index calculation unit 60, and the temperature thermistor 65. The heat insulating material 32 is located below the heater wire 30, the laser sensor 40, the electrostatic sensor 50, the health index calculation unit 60, and the temperature thermistor 65.

[0040] The thin portion 23 has a thickness that allows the light emitted from the laser sensor 40 and the light reflected from a user seated on the seating surface 21 to pass through. The thickness of the thin portion 23 is set based on the intensity of the light emitted and the reflected light from the laser sensor 40, the durability of the toilet seat 20, and the like, and is, for example, about 0.5 mm to 1.0 mm.

[0041] In this specification, the terms "upper," "lower," "front," "rear," "left side," and "right side" refer to the directions seen by a user sitting on the toilet seat 20 with their back to the open toilet lid 14.

[0042] 2, the thin-walled portion 23 is formed on the left side and forward of the center of the front-to-rear length of the opening 20a of the toilet seat 20, and is positioned forward and left of the center of gravity of a user seated on the toilet seat 20. As a result, the thin-walled portion 23 faces (comes into contact with) the back of the left thigh of a user seated on the toilet seat 20.

[0043] The thin-walled portion 23 is formed as small as possible within the range where the laser sensor 40 can detect blood flow information of a user sitting on the toilet seat 20, and is, for example, circular with a diameter of 12 mm or less (preferably 8 mm or less).

[0044] Laser sensor 40 is disposed inside toilet seat 20 on the rear side of thin portion 23. Laser sensor 40 is a reflective sensor that irradiates infrared light toward the rear side of the user's left thigh and detects reflected light (scattered light that has undergone a Doppler shift due to red blood cells) that is reflected in accordance with the state of blood flow in the blood vessels under the skin. Figure 4 is a diagram that shows a schematic configuration of laser sensor 40.

[0045] 1 and 2, the electrostatic sensor 50 is formed on the right side and forward of the center of the front-to-rear length of the opening 20a of the toilet seat 20, and is positioned forward and right of the center of gravity of a user seated on the toilet seat 20. This allows the electrostatic sensor 50 to detect the seated state when it faces (contacts) the back of the right thigh of a user seated on the toilet seat 20.

[0046] In this embodiment, health index calculation unit 60 is located near the front end of toilet seat 20 (relatively close to laser sensor 40), and processes the output signal of laser sensor 40 to convert it into a signal that is relatively resistant to noise. Specifically, health index calculation unit 60 calculates health indexes (specifically, for example, pulse rate, pulse variability, blood flow, etc.) of the user sitting on toilet seat 20 based on the measurement results of laser sensor 40, and transmits signals corresponding to the calculation results to communication unit 75 via control unit 70. Figure 5 is a schematic diagram showing the process of calculating various health indexes based on the measurement results of laser sensor 40.

[0047] Control unit 70 and communication unit 75 are provided within main body 12. Health index calculation unit 60 may also be provided within main body 12 instead of within toilet seat 20. When health index calculation unit 60 is provided within main body 12, it may be provided separately from control unit 70, or may be provided as an integrated part of control unit 70.

[0048] Furthermore, the health index calculation unit 60 and the control unit 70 may be provided (constructed) not within the main body unit 12, but within an external device or an external network (e.g., within the cloud) that communicates via the communication unit 75.

[0049] Returning to FIG. 1, the main body 12 is located behind the bowl of the toilet 4 and is attached to the top surface 4b of the toilet 4. Inside the main body 12 are built-in units: an opening / closing unit 12a that controls the opening and closing of the toilet seat 20 and toilet lid 14; a toilet seat heating unit 12b that controls the temperature of the toilet seat 20; a cleaning unit 12c that cleans the human private parts; and a deodorizing unit 12d that reduces odorous components. Each of the units 12a to 12d is controlled collectively by a control unit 70. In this embodiment, the control unit 70 is also connected to each of the electrostatic sensor 50 and the temperature thermistor 65.

[0050] Control unit 70 of the present embodiment is connected to communication unit 75 (an example of a health index output unit) for outputting the user's health index calculated by health index calculation unit 60. Communication unit 75 transmits the calculated health index of the user to, for example, a remote control 80 in the toilet room or the user's mobile terminal 85. The user sitting on toilet seat 20 can check various health indexes (vital signs such as pulse rate, etc.) on display unit 80a of remote control 80 or display unit 85a of mobile terminal 85.

[0051] As mentioned above, according to the knowledge of the inventors of the present invention, for example, when sitting on a cold toilet seat 20 during the cold winter months, the blood flow of the user sitting on the toilet seat 20 may become poor, and the health index calculated based on such blood flow conditions may not accurately reflect the actual health condition.

[0052] To address this problem, the control unit 70 of the toilet system 10 of this embodiment is configured to determine whether the temperature state of the seating surface 21 meets predetermined conditions (functioning as a temperature determination unit), and when the temperature determination determines that the temperature state of the seating surface 21 meets the predetermined conditions, changes the operation of the health index calculation unit 60 and / or the operation of the communication unit 75 (health index output unit) (functioning as an operation change command unit).

[0053] Additionally, the toilet system 10 of this embodiment has a timer 95 that measures the duration of the user's seated state in conjunction with the electrostatic sensor 50. The timer 95 is also connected to the control unit 70.

[0054] (First example: configuration details) A first operation example of the toilet system 10 configured as above will be described with reference to FIG.

[0055] In the first operation example, the control unit 70, as a seating determination unit, determines whether or not the user is sitting on the seating surface 21 based on the measurement results of the electrostatic sensor 50 (an example of a seating sensor).

[0056] Furthermore, in the first operation example, the control unit 70, as a seating time determination unit, is configured to determine whether or not the elapsed time since the user sat on the seating surface 21 is 10 seconds or more based on the measurement results of the timer 95.

[0057] On the other hand, in the first operation example, the control unit 70, as a temperature determination unit, determines whether the temperature state of the seating surface 21 is below 20°C (an example of the first threshold and the second threshold) based on the measurement results of the temperature thermistor 65 (an example of a temperature sensor).

[0058] Furthermore, in the first operation example, the control unit 70, as an operation change command unit, is configured to cause the communication unit 75 (health index output unit) to output error information and / or stop the output operation of the communication unit 75 (health index output unit) when it is determined that the temperature state of the seating surface 21 is 20°C or below.

[0059] Note that stopping the output operation means stopping the output operation related to the health index from newly obtained blood flow information, and for example, the output of the health index output the previous time the user sat on seating surface 21 may continue. In other words, stopping the output operation also includes an operating state in which the health index is not newly updated.

[0060] (First operation example: Action) 6, the control unit 70 first determines whether or not the user is sitting on the seating surface 21 (STEP 11). If it is determined that the user is not yet sitting on the seating surface 21 (NO in STEP 11), the determination process is repeated.

[0061] If it is determined that the user is sitting on seating surface 21 (YES in STEP 11), control unit 70 subsequently determines whether the temperature of seating surface 21 is 20°C (an example of a second threshold) or less (STEP 12). In parallel, health index calculation unit 60 starts a process of calculating the user's health index based on the measurement results of laser sensor 40.

[0062] If the temperature of seating surface 21 is not below 20°C (NO in STEP 12), normal operation is carried out. That is, communication unit 75 transmits the health index of the user calculated by health index calculation unit 60 to, for example, remote control 80 in the toilet room or the user's mobile terminal 85 (STEP 13).

[0063] If the temperature state of seating surface 21 is 20° C. or less (YES in STEP 12), control unit 70 causes communication unit 75 (health index output unit) to output error information (STEP 14).

[0064] Thereafter, the control unit 70 determines whether or not the time that has elapsed since the user sat on the seating surface 21 is 10 seconds or more (STEP 15).

[0065] If the electrostatic sensor 50 detects that the user has left the seat (YES in STEP 16) before the elapsed time reaches 10 seconds or more (NO in STEP 15), the control unit 70 stops the output operation of the communication unit 75 (health index output unit) (STEP 18).

[0066] Before the elapsed time reaches 10 seconds or more (NO in STEP 15), as long as the electrostatic sensor 50 does not detect the user leaving the seat (NO in STEP 16), the process waits for the elapsed time to reach 10 seconds or more (NO in STEP 16).

[0067] If the elapsed time is 10 seconds or more (YES in STEP 15), in this embodiment, it is again determined whether the temperature state of the seating surface 21 is below 20°C (an example of the first threshold value) based on the measurement results of the temperature thermistor 65 (an example of a temperature sensor) (STEP 17).

[0068] If the temperature of seating surface 21 is not below 20°C (NO in STEP 17), normal operation is carried out. That is, communication unit 75 transmits the health index of the user calculated by health index calculation unit 60 to, for example, remote control 80 in the toilet room or mobile terminal 85 of the user (STEP 13).

[0069] If the temperature state of seating surface 21 is 20° C. or less (YES in STEP 17), control unit 70 stops the output operation of communication unit 75 (health index output unit) (STEP 18).

[0070] (First example: effect) According to the first operation example described above, for example, in the case where the temperature of the seating surface is below 20°C during cold winter months, error information is output from communication unit 75 while the user is seated, and after the user leaves the seat, output of the health index from communication unit 75 is stopped. This effectively prevents a health index that is likely to not accurately reflect the user's actual health condition from being output as accurately reflecting the user's health condition.

[0071] In particular, after the user leaves the seat, a health index that is likely to not accurately reflect the user's actual health condition is not output, effectively preventing unnecessary confusion or agitation among users who, for example, use the health index obtained by the toilet system 10 to manage their health on a daily basis.

[0072] Furthermore, in the first operation example, while the user is seated, error information is output along with (or instead of) the health index which is likely to not accurately reflect the user's actual health condition, thereby effectively preventing unnecessary confusion or agitation in users who, for example, use the health index obtained by the toilet system 10 to manage their health on a daily basis.

[0073] Furthermore, in the first operation example, the temperature of the seating surface 21 is directly measured (grasped) by the temperature thermistor 65, so that the accuracy of the temperature determination is high.

[0074] (First Operation Example: Modified Example) The information used as the basis for the temperature determination is not limited to the measurement result of the temperature thermistor 65. For example, a room temperature sensor may be provided to measure the temperature in the toilet room (ambient temperature of the seating surface 21), and when the heater (specifically, the heater wire 30 in this embodiment) that heats the seating surface 21 is turned off, it may be determined (estimated) whether the temperature state of the seating surface 21 satisfies a predetermined condition based on the measurement result of the room temperature sensor.

[0075] Alternatively, the information used as the basis for temperature determination may be a combination of weather information (particularly temperature information) for the area including the house or facility where the toilet system 10 is installed and the operating status of the heater. The weather information can be received by the control unit 70 of the toilet system 10 via the Internet or the like using appropriate IoT technology, and can be updated at appropriate times.

[0076] Alternatively, the information used as the basis for the temperature determination may be the operating state of the heater (specifically, the heater wire 30 in this embodiment) that heats the seating surface 21. Specifically, when the heater is turned on, the specified temperature setting of the heater (if multiple temperature settings are possible, the specified temperature setting of the set temperature setting) can be used as the temperature state of the seating surface 21 for the determination. Furthermore, even when the heater is turned off, the temperature state of the seating surface can be estimated based on a temperature transition curve predicted from the specified temperature setting of the heater depending on the elapsed time since the heater was turned off, and used for the determination. In this case, after a sufficient amount of time has passed since the heater was turned off, the other information described above (measurement results by the temperature sensor, measurement results by the room temperature sensor, weather information) can be used as the basis for the determination.

[0077] Alternatively, the information used for temperature determination may be the measurement result of the timer 95 that measures the time the user sits on the seating surface 21. Specifically, for example, if the user sits for more than 10 seconds, 36°C (average body temperature) can be used for determination as the temperature state of the seating surface 21 (even the cold seating surface 21 in winter can be warmed by the user's body temperature). That is, in the first operation example of Fig. 5, if STEP 15 is YES, STEP 17 may be automatically determined to be YES.

[0078] (Second example: configuration details) A second operation example of the toilet system 10 will be described with reference to FIG.

[0079] In the second operation example, the control unit 70 also serves as a seating determination unit and determines whether or not the user is sitting on the seating surface 21 based on the measurement results of the electrostatic sensor 50 (an example of a seating sensor).

[0080] In addition, in the second operation example, the control unit 70, as a temperature determination unit, determines whether the temperature state of the seating surface 21 is in the range of 0°C to 10°C (an example of the third range), in the range of 10°C to 20°C (another example of the third temperature range), or outside these temperature ranges (i.e., above 20°C) based on the measurement results of the temperature thermistor 65 (an example of a temperature sensor).

[0081] In the second operation example, control unit 70 functions as an operation change command unit and changes the operation of health index calculation unit 60 when it is determined that the temperature state of seating surface 21 is in the range of 0°C to 10°C or in the range of 10°C to 20°C. Specifically, health index calculation unit 60 switches the calculation formula used in the calculation process (see FIG. 5) that calculates the health index from the output signal of laser sensor 40 from the normal one (for temperatures above 20°C) to a low temperature calculation formula (for temperatures between 10°C and 20°C) or an extremely low temperature calculation formula (for temperatures between 0°C and 10°C). (The low temperature calculation formula and the extremely low temperature calculation formula are switchably prepared in advance in health index calculation unit 60.)

[0082] (Second example of operation: action) 7, the control unit 70 first determines whether or not the user is sitting on the seating surface 21 (STEP 21). If it is determined that the user is not yet sitting on the seating surface 21 (NO in STEP 21), the determination process is repeated.

[0083] If it is determined that the user is sitting on seating surface 21 (YES in STEP 21), control unit 70 subsequently determines whether the temperature state of seating surface 21 is in the range of 0°C to 10°C (an example of a third range), or in the range of 10°C to 20°C (another example of a third threshold), or outside these temperature ranges (i.e., 20°C or higher) (STEP 22). In parallel, health index calculation unit 60 starts a process of calculating the user's health index based on the measurement results of laser sensor 40.

[0084] If the temperature of seating surface 21 is not within the set temperature range (i.e., is 20°C or higher) (NO in STEP 22), normal operation is carried out. That is, communication unit 75 transmits the health index of the user calculated by health index calculation unit 60 to, for example, remote control 80 in the toilet room or mobile terminal 85 of the user (STEP 23).

[0085] If it is determined that the temperature state of seating surface 21 is in the range of 0°C to 10°C or 10°C to 20°C (YES in STEP 22), control unit 70 controls health index calculation unit 60 to change the operation of health index calculation unit 60 (STEP 24). Specifically, health index calculation unit 60 switches the calculation formula used in the calculation process (see FIG. 5) that calculates the health index from the output signal of laser sensor 40 from the normal one (for temperatures above 20°C) to a low temperature calculation formula (for temperatures between 10°C and 20°C) or an extremely low temperature calculation formula (for temperatures between 0°C and 10°C).

[0086] After that, health index calculation unit 60, after switching the calculation formula, performs (calculates) the calculation process of the user's health index again (it can be reset once if necessary). Then, control unit 70 confirms that the calculated health index is the health index calculated after switching the calculation formula (after changing the operation content) (STEP 25).

[0087] While the confirmation result is not YES (NO in STEP 25), the process waits for the confirmation result to become YES (NO in STEP 25).

[0088] After the confirmation result is YES (YES in STEP 25), the communication unit 75 transmits the user's health index calculated by the health index calculation unit 60 after the calculation formula has been switched (after the operation content has been changed) to, for example, the remote control 80 in the toilet room or the user's mobile terminal 85 (STEP 26).

[0089] (Second example: effect) According to the second operation example described above, when the seating surface temperature is in the range of 0°C to 10°C or in the range of 10°C to 20°C during cold winter months, for example, the calculation formula used in the calculation process (see FIG. 5) for calculating the health index from the output signal of laser sensor 40 is switched from the normal one (for temperatures above 20°C) to a low-temperature calculation formula (for temperatures between 10°C and 20°C) or an extremely low-temperature calculation formula (for temperatures between 0°C and 10°C). This effectively prevents a health index that is likely to not accurately reflect the user's actual health condition from being output as accurately reflecting the user's health condition.

[0090] Also in the second operation example, the temperature of the seating surface 21 is directly measured (grasped) by the temperature thermistor 65, so that the accuracy of the temperature determination is high.

[0091] (Second Operation Example: Modified Example) In the second operation example as well, the information used as the basis for temperature determination is not limited to the measurement result of the temperature thermistor 65. For example, a room temperature sensor may be provided to measure the temperature in the toilet room (ambient temperature around the seating surface 21), and when a heater (specifically, the heater wire 30 in this embodiment) that heats the seating surface 21 is turned off, it may be determined (estimated) whether the temperature state of the seating surface 21 satisfies a predetermined condition based on the measurement result of the room temperature sensor.

[0092] Alternatively, the information used as the basis for temperature determination may be a combination of weather information (particularly temperature information) for the area including the house or facility where the toilet system 10 is installed and the operating status of the heater. The weather information can be received by the toilet system 10 via the Internet or the like using appropriate IoT technology, and can be updated at appropriate times.

[0093] Alternatively, the information used as the basis for the temperature determination may be the operating state of the heater (specifically, the heater wire 30 in this embodiment) that heats the seating surface 21. Specifically, when the heater is turned on, the specified temperature setting of the heater (if multiple temperature settings are possible, the specified temperature setting of the set temperature setting) can be used as the temperature state of the seating surface 21 for the determination. Furthermore, even when the heater is turned off, the temperature state of the seating surface can be estimated based on a temperature transition curve predicted from the specified temperature setting of the heater depending on the elapsed time since the heater was turned off, and used for the determination. In this case, after a sufficient amount of time has passed since the heater was turned off, the other information described above (measurement results by the temperature sensor, measurement results by the room temperature sensor, weather information) can be used as the basis for the determination.

[0094] Alternatively, the information used for temperature determination may be the measurement result of a timer that measures the time the user sits on the seating surface 21. Specifically, for example, if the user sits for more than 10 seconds, 36°C (average body temperature) can be used for determination as the temperature state of the seating surface 21 (even the cold seating surface 21 in winter can be warmed by the user's body temperature).

[0095] (Third example: configuration details) A third operation example of the toilet system 10 will be described with reference to FIG.

[0096] In the third operation example, the control unit 70 also serves as a seating determination unit to determine whether or not the user is sitting on the seating surface 21 based on the measurement results of the electrostatic sensor 50 (an example of a seating sensor).

[0097] Also, in the third operation example, the control unit 70, as a temperature determination unit, is configured to determine whether the temperature state of the seating surface 21 is below 20°C (an example of the first threshold and the second threshold) based on the measurement results of the temperature thermistor 65 (an example of a temperature sensor).

[0098] Furthermore, in the third operation example, the control unit 70, as an operation change command unit, is configured to cause the communication unit 75 (health index output unit) to output error information and / or stop the output operation of the communication unit 75 (health index output unit) when it is determined that the temperature state of the seating surface 21 is 20°C or below.

[0099] On the other hand, in the third operation example, the control unit 70, as an operation change command unit, is configured to forcibly drive the heater wire 30 (an example of a heater) and / or increase the set temperature (function as a heater control unit) when it is determined that the temperature state of the seating surface 21 is 20°C or below and when the memory unit 97 (which may be provided in the main body unit 12 (see Figure 3) or may be a memory unit in the remote control 80 or an external device (such as the user's mobile terminal) connected via the communication unit 75) has stored information that the user wishes to output a health index.

[0100] (Third operation example: Action) 8, the control unit 70 first determines whether or not the user is sitting on the seating surface 21 (STEP 31). If it is determined that the user is not yet sitting on the seating surface 21 (NO in STEP 31), the determination process is repeated.

[0101] If it is determined that the user is sitting on seating surface 21 (YES in STEP 31), control unit 70 subsequently determines whether the temperature of seating surface 21 is 20°C (an example of a second threshold) or less (STEP 32). In parallel, health index calculation unit 60 starts a process of calculating the user's health index based on the measurement results of laser sensor 40.

[0102] If the temperature of seating surface 21 is not below 20°C (NO in STEP 32), normal operation is carried out. That is, communication unit 75 transmits the health index of the user calculated by health index calculation unit 60 to, for example, remote control 80 in the toilet room or mobile terminal 85 of the user (STEP 33).

[0103] If the temperature state of seating surface 21 is 20° C. or less (YES in STEP 32), control unit 70 causes communication unit 75 (health index output unit) to output error information (STEP 34).

[0104] Thereafter, control unit 70 determines whether storage unit 97 stores information indicating that the user desires to have the health index output (STEP 35).

[0105] If it is not confirmed that the user desires to have the health index output (NO in STEP 35), control unit 70 stops the output operation of communication unit 75 (health index output unit) (STEP 36).

[0106] On the other hand, if it is confirmed that the user desires to output the health index (YES in STEP 35), the control unit 70 forcibly drives the heater wire 30 (an example of a heater) via the toilet seat heating unit 12b and / or raises the set temperature (STEP 37). After that, the control process returns to STEP 32.

[0107] If the temperature of the seating surface 21 is not below 20°C (NO in STEP 32), it is preferable that the output of the temperature thermistor 65 (an example of a temperature sensor) is monitored by the control unit 70 so that the condition is maintained at least until the measurement by the laser sensor 40 is completed, and it is preferable that the heater (specifically, the heater wire 30 in this embodiment) that heats the seating surface 21 is controlled by the control unit 70 as needed based on the monitoring result (by appropriately combining ON, UP (increasing the set temperature step), DOWN (decreasing the set temperature step), OFF, etc.).

[0108] (Third example: effect) According to the third operation example described above, when the seat temperature is below 20°C during cold winter months and the user desires to output a health index, the heater wire 30 is turned ON if it was OFF, or the set temperature or set temperature step of the heater wire 30 that was ON is increased if it was insufficient. This effectively prevents a health index that is likely to not accurately reflect the user's actual health condition from being output as accurately reflecting the user's health condition.

[0109] On the other hand, if the seating surface temperature is below 20°C during cold winter months, for example, and the user does not wish for the health index to be output, the health index will not be output, effectively preventing unnecessary confusion or upset for users who, for example, use the health index obtained by the toilet system 10 to manage their health on a daily basis.

[0110] Also in the third operation example, the temperature of the seating surface 21 is directly measured (grasped) by the temperature thermistor 65, so that the accuracy of the temperature determination is high.

[0111] (Third Operation Example: Modified Example) In the third operation example as well, the information used as the basis for temperature determination is not limited to the measurement result of the temperature thermistor 65. For example, a room temperature sensor may be provided to measure the temperature in the toilet room (ambient temperature of the seating surface 21), and when a heater (specifically, the heater wire 30 in this embodiment) that heats the seating surface 21 is turned off, it may be determined (estimated) whether the temperature state of the seating surface 21 satisfies a predetermined condition based on the measurement result of the room temperature sensor.

[0112] Alternatively, the information used as the basis for temperature determination may be a combination of weather information (particularly temperature information) for the area including the house or facility where the toilet system 10 is installed and the operating status of the heater. The weather information can be received by the toilet system 10 via the Internet or the like using appropriate IoT technology, and can be updated at appropriate times.

[0113] Alternatively, the information used as the basis for the temperature determination may be the operating state of the heater (specifically, the heater wire 30 in this embodiment) that heats the seating surface 21. Specifically, when the heater is turned on, the specified temperature setting of the heater (if multiple temperature settings are possible, the specified temperature setting of the set temperature setting) can be used as the temperature state of the seating surface 21 for the determination. Furthermore, even when the heater is turned off, the temperature state of the seating surface can be estimated based on a temperature transition curve predicted from the specified temperature setting of the heater depending on the elapsed time since the heater was turned off, and used for the determination. In this case, after a sufficient amount of time has passed since the heater was turned off, the other information described above (measurement results by the temperature sensor, measurement results by the room temperature sensor, weather information) can be used as the basis for the determination.

[0114] (Third Operation Example: Further Modification) In the third operation example, in parallel with STEP 32, health index calculation unit 60 starts a process of calculating the user's health index based on the measurement result of laser sensor 40. If the temperature state of seating surface 21 is not 20°C or lower (NO in STEP 32), it is preferable that control unit 70 monitors the output of temperature thermistor 65 so that this condition continues at least until measurement by laser sensor 40 is completed, and it is preferable that control unit 70 controls a heater that heats seating surface 21 as necessary based on the monitoring result.

[0115] 9, if the temperature of seating surface 21 is not below 20°C (NO in STEP 32), control unit 70 controls a heater (specifically, heater wire 30 in this embodiment) that heats seating surface 21 (by appropriately combining ON, UP (increasing the set temperature), DOWN (decreasing the set temperature), OFF, etc.) so that the output of temperature thermistor 65 approaches or maintains a temperature range close to body temperature (human skin temperature) (specifically, approximately 34°C to 38°C). While the heater is being controlled to maintain the temperature close to body temperature, laser sensor 40 performs measurement, and health index calculation unit 60 starts calculating the user's health index based on the measurement result of laser sensor 40.

[0116] According to a further modification of the third operation example described above, during measurement by the laser sensor 40, the control unit 70 controls the operation of the heater, so that the temperature state of the seating surface 21 on which the user sits approaches or is maintained within a temperature range close to body temperature.

[0117] This effectively prevents the blood flow state of a user sitting on the toilet seat from being affected (changing) by the seating surface which may be lower than body temperature (skin temperature), which may occur, for example, when the heater is driven too little compared to the room temperature of the toilet room, and conversely, the blood flow state of a user sitting on the toilet seat from being affected (changing) by the seating surface which may be temporarily higher than body temperature (skin temperature), which may occur, for example, when the heater is driven too much compared to the room temperature of the toilet room.

[0118] It should be noted that while the heater is being controlled to operate within a temperature range close to body temperature as described above, even if a function is provided to manually change the heater temperature setting, etc., using the toilet remote control 80 or the user's mobile terminal 85, it is preferable that the provision of this function be suspended (for example, manual input is not accepted).

[0119] (Additional information about the program) The various functions of health index calculation unit 60, control unit 70, and communication unit 75 can be realized by a microcomputer or the like that executes corresponding programs. The programs and storage media that store the programs are also covered by the present application.

[0120] For example, the program according to the present invention is a program that provides a health index using a toilet system 10 that includes a toilet seat 20 having a seating surface 21 on which a user sits, and a laser sensor 40 that is provided on the toilet seat 20 and measures physical quantities that reflect the user's blood flow information. When the program is executed by a computer, it can carry out the following: a health index calculation process that calculates the user's health index based on the measurement results of the laser sensor 40; a health index output process that outputs the user's health index calculated by the health index calculation process; a temperature determination process that determines whether the temperature state of the seating surface 21 meets a predetermined condition; and an operation change command process that changes the operation content of the health index calculation process or the operation content of the health index output unit when it is determined by the temperature determination process that the temperature state of the seating surface 21 meets the predetermined condition.

[0121] Alternatively, the program according to the present invention is a program for providing a health index using a toilet system 10 including a toilet seat 20 having a seating surface 21 on which a user sits, a laser sensor 40 provided on the toilet seat 20 for measuring physical quantities reflecting the user's blood flow information, and a heater wire 30 for heating the seating surface 21, wherein the program is executed by a computer to carry out the following steps: a health index calculation step for calculating the user's health index based on the measurement results of the laser sensor 40; a health index output step for outputting the user's health index calculated by the health index calculation step; a temperature determination step for determining whether the temperature state of the seating surface 21 satisfies a predetermined condition; and a heater control step for changing the driving mode of the heater wire 30 when it is determined by the temperature determination step that the temperature state of the seating surface 21 satisfies the predetermined condition.

[0122] Alternatively, the program according to the present invention is a program for providing a health index using a toilet system 10 including a toilet seat 20 having a seating surface 21 on which a user sits, a laser sensor 40 provided on the toilet seat 20 for measuring a physical quantity reflecting the user's blood flow information, a memory unit 97 for storing information on whether the user desires a health index output, and a heater wire 30 for heating the seating surface 21, wherein the program is executed by a computer to carry out the following steps: a health index calculation step for calculating the user's health index based on the measurement results of the laser sensor 40; a health index output step for outputting the user's health index calculated by the health index calculation step; a temperature determination step for determining whether the temperature state of the seating surface 21 satisfies a predetermined condition; and a heater control step for changing the driving mode of the heater wire 30 when the temperature determination step determines that the temperature state of the seating surface 21 satisfies the predetermined condition and the memory unit 97 has stored information that the user desires a health index output. [Explanation of symbols]

[0123] 4 toilets 4b Top side 10 Toilet System 12 Main body 12a Opening and closing unit 12b Toilet seat heating unit 12c Cleaning Unit 12d Deodorizing unit 14 Toilet lid 20 toilet seats 20a opening 21 Seating surface 22 Thick wall part 23 Thin-walled section 25 bottom 30 Heater wire 32 Insulation 40 Laser Sensor 50 Electrostatic Sensor 60 Health Index Calculation Department 65 Temperature Thermistor 70 Control Unit 75 Communications Department 80 Remote Control 80a Display section 85 External terminals (cell phones, etc.) 85a Display section 95 Timer 97 Memory section

Claims

1. A toilet seat on which a user sits; a sensor provided on the toilet seat that measures a physical quantity reflecting blood flow information of the user by detecting scattered light that has undergone a Doppler shift due to red blood cells; a heater for heating the toilet seat; a heater control unit that controls driving of the heater to an operating state while the sensor is measuring the physical quantity; a temperature determination unit that determines whether the temperature state of the toilet seat satisfies a predetermined condition; Equipped with When the user is seated on the toilet seat that has been heated by controlling the heater to an operating state by the heater control unit and the temperature determination unit determines that the temperature state of the toilet seat satisfies the predetermined condition during measurement of the physical quantity by the sensor, the heater control unit changes the driving content of the heater. A toilet system characterized by:

2. The temperature determination unit determines whether the temperature state of the toilet seat is less than a predetermined first threshold value, The heater control unit controls the temperature state of the toilet seat to be less than the first threshold value at least until the measurement of the physical quantity by the sensor is completed.

2. The toilet system of claim 1.

3. The temperature determination unit determines whether the temperature state of the toilet seat is equal to or higher than a predetermined second threshold value, The heater control unit controls the temperature state of the toilet seat to be equal to or higher than the second threshold value at least until the measurement of the physical quantity by the sensor is completed.

3. The toilet system according to claim 1 or 2.

4. An input section for inputting changes to the heater settings Further provided with If the physical quantity has not been measured by the sensor, an input is received from the input unit; When the physical quantity is being measured by the sensor, the input from the input unit is not accepted.

2. The toilet system of claim 1.

5. A toilet seat on which a user sits, a sensor provided on the toilet seat for measuring a physical quantity that reflects blood flow information of the user; a heater for heating the toilet seat; a heater control unit that controls driving of the heater while the sensor is measuring the physical quantity; a health index calculation unit that calculates a health index of the user based on the measurement results of the sensor; a health index output unit that outputs the health index of the user calculated by the health index calculation unit; a temperature determination unit that determines whether the temperature state of the toilet seat satisfies a predetermined condition; an operation change command unit that changes the operation content of the health index calculation unit and / or the operation content of the health index output unit when the temperature determination unit determines that the temperature state of the toilet seat satisfies the predetermined condition; A toilet system comprising:

6. The temperature determination unit determines whether the temperature state of the toilet seat is equal to or lower than a predetermined first threshold value, The operation change command unit stops the output operation of the health index output unit when the temperature determination unit determines that the temperature state of the toilet seat is equal to or lower than the first threshold.

6. The toilet system according to claim 5.

7. The temperature determination unit determines whether the temperature state of the toilet seat is equal to or lower than a predetermined second threshold value, The operation change command unit causes the health index output unit to output error information when the temperature determination unit determines that the temperature state of the toilet seat is equal to or lower than the second threshold.

6. The toilet system according to claim 5.

8. The temperature determination unit determines whether the temperature state of the toilet seat is within a predetermined third range, The operation change command unit corrects the calculation operation of the health index calculation unit when the temperature determination unit determines that the temperature state of the toilet seat is within the third range.

6. The toilet system according to claim 5.

9. A toilet seat on which a user sits; a sensor provided on the toilet seat that measures a physical quantity reflecting blood flow information of the user by detecting scattered light that has undergone a Doppler shift due to red blood cells; a heater for heating the toilet seat; a heater control unit that controls driving of the heater to an operating state while the sensor is measuring the physical quantity; A method for controlling the operation of the heater using a toilet system comprising: a temperature determination step of determining whether or not the temperature state of the toilet seat satisfies a predetermined condition while the user is seated on the toilet seat that has been heated by controlling the heater to an operating state by the heater control unit and while the sensor is measuring the physical quantity; a step of changing the heater operation state by the heater control unit when the user is seated on the toilet seat that has been heated by controlling the heater to an operating state and when the temperature determination step determines that the temperature state of the toilet seat satisfies the predetermined condition during measurement of the physical quantity by the sensor; A method comprising:

10. A toilet seat on which a user sits; a sensor provided on the toilet seat that measures a physical quantity reflecting blood flow information of the user by detecting scattered light that has undergone a Doppler shift due to red blood cells; a heater for heating the toilet seat; a heater control unit that controls driving of the heater to an operating state while the sensor is measuring the physical quantity; A program for controlling the operation of the heater using a toilet system including: When the program is executed by a computer, a temperature determination step of determining whether or not the temperature state of the toilet seat satisfies a predetermined condition while the user is seated on the toilet seat that has been heated by controlling the heater to an operating state by the heater control unit and while the sensor is measuring the physical quantity; a step of changing the heater operation state by the heater control unit when the user is seated on the toilet seat that has been heated by controlling the heater to an operating state and when the temperature determination step determines that the temperature state of the toilet seat satisfies the predetermined condition during measurement of the physical quantity by the sensor; A program capable of executing the above.

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