Toilet system

Abstract

To provide a toilet system capable of accurately estimating a female cycle.SOLUTION: A toilet system comprising: a toilet device including a toilet seat on which a user is seated; a skin gas sensor provided in the toilet device and configured to detect skin gas released from skin of the user; a controller configured to estimate a female cycle of the user based on a detection result of the skin gas sensor; and a notifier configured to notify an estimation result of the controller.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] FIELD OF THE INVENTION Aspects of the present invention relate generally to toilet systems. [Background technology]

[0002] A technique is known for measuring basal body temperature and predicting the date of the next menstruation and the date of the next ovulation from the basal body temperature (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-62322 Summary of the Invention [Problem to be solved by the invention]

[0004] However, basal body temperature changes not only with the female cycle but also with physical conditions. Therefore, even if basal body temperature changes, it is not necessarily due to the female cycle. Therefore, estimating the female cycle based solely on basal body temperature may result in poor accuracy.

[0005] The present invention has been made based on the recognition of such a problem, and aims to provide a toilet system that can accurately estimate a woman's cycle. [Means for solving the problem]

[0006] A first aspect of the present invention is a toilet system comprising: a toilet device having a toilet seat on which a user sits; a skin gas sensor provided in the toilet device that detects skin gas emitted from the user's skin; a control unit that estimates the user's female cycle based on the detection results of the skin gas sensor; and an alarm unit that notifies the control unit of the estimation results.

[0007] According to this toilet system, the control unit estimates the female cycle based on the detection results of the skin gas sensor, thereby enabling accurate estimation of the female cycle.

[0008] A second aspect of the present invention is a toilet system according to the first aspect, characterized in that the skin gas sensor detects at least one of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas.

[0009] According to this toilet system, the skin gas sensor detects at least one of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas, thereby enabling more accurate estimation of the female cycle.

[0010] A third aspect of the present invention is a toilet system characterized in that, in the first aspect, it further comprises a body temperature sensor that detects the body temperature of the user, and the control unit estimates the female cycle based on the detection results of the skin gas sensor and the detection results of the body temperature sensor.

[0011] According to this toilet system, the control unit estimates the female cycle based on the detection results of the skin gas sensor and the body temperature sensor, thereby enabling more accurate estimation of the female cycle.

[0012] A fourth aspect of the present invention is the toilet system of the first aspect, characterized in that the notification unit notifies the user of a recommendation regarding the female cycle.

[0013] According to this toilet system, the notification unit notifies the user of recommendations regarding the female cycle, thereby encouraging the user to take appropriate measures according to the female cycle.

[0014] A fifth aspect of the present invention is a toilet system according to any one of the first to fourth aspects, characterized in that the toilet seat has a seating portion on which the user sits, a bottom portion facing the seating portion, and a recessed portion recessed from the seating portion toward the bottom portion, and the skin gas sensor is located below the upper surface of the seating portion and provided in the recessed portion.

[0015] According to this toilet system, the skin gas sensor is located in the recess, below the upper surface of the seat, and can therefore efficiently detect skin gases that fill the recess. [Effects of the Invention]

[0016] According to an aspect of the present invention, a toilet system capable of accurately estimating a woman's cycle is provided. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view showing a toilet unit of a toilet system according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing a communication system of the toilet system. [Figure 3] FIG. 10 is a side view showing the positional relationship between a user seated on a toilet seat and a skin gas sensor. [Figure 4] 2 is a cross-sectional view of the toilet seat and the skin gas sensor in FIG. 1, as viewed from the direction of arrow AA. [Figure 5] FIG. 10 is an explanatory diagram showing a series of flows of actions of a user using a toilet unit and a control process for estimating a metabolic state. [Figure 6] 10 is a flowchart showing an example of a skin gas control process executed by a control unit. [Figure 7] 10 is a flowchart showing another example of the skin gas control process executed by the control unit. [Figure 8] FIG. 10 is an explanatory diagram showing an example of the detection result of the skin gas sensor displayed on the notification unit of the information terminal. [Figure 9] FIG. 4 is an explanatory diagram showing an example of a female cycle estimated by the control unit. [Figure 10] FIG. 4 is an explanatory diagram showing an example of a female cycle estimated by the control unit. [Figure 11] FIG. 10 is a block diagram showing a communication system of a toilet system according to a second embodiment of the present invention. [Figure 12] FIG. 10 is a side view showing the positional relationship between a user seated on a toilet seat, a skin gas sensor, and a body temperature sensor. [Figure 13] 10 is a flowchart showing a skin gas and body temperature control process executed by the control unit. [Figure 14] 10 is an explanatory diagram showing an example of the detection result of the body temperature sensor displayed on the notification unit of the information terminal. FIG. [Figure 15] FIG. 4 is an explanatory diagram showing an example of a female cycle estimated by the control unit. [Figure 16] FIG. 4 is an explanatory diagram showing an example of a female cycle estimated by the control unit. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, like components are designated by like reference numerals and detailed descriptions thereof will be omitted where appropriate.

[0019] FIG. 1 is a perspective view showing a toilet unit of a toilet system according to a first embodiment of the present invention. FIG. 2 is a block diagram showing a communication system of the toilet system. FIG. 3 is a side view showing the positional relationship between a user seated on a toilet seat and the skin gas sensor. FIG. 4 is a cross-sectional view of the toilet seat and the skin gas sensor in FIG. 1 as viewed from the direction of arrow AA.

[0020] The toilet system 600 estimates the metabolic state of a user U. The toilet system 600 includes a toilet unit 2, an information terminal 60, and a management device 70. As shown in FIG. 1, the toilet unit 2 includes a toilet device 10 and a skin gas sensor 40. The toilet device 10 is installed in a toilet room. The toilet device 10 includes a toilet bowl 11, a casing 12, a toilet seat 20, and a toilet lid 30. The toilet bowl 11 is a so-called seated toilet bowl. The toilet bowl 11 has a concave bowl portion 11a that is recessed downward. The toilet bowl 11 receives excrement such as urine and feces from the user U in the bowl portion 11a.

[0021] In this specification, the terms "upper," "lower," "front," "rear," "left side," and "right side" refer to directions as seen by a user U sitting on the toilet seat 20 with their back to the open toilet lid 30.

[0022] The casing 12 is installed on top of the toilet bowl 11. The casing 12 may be attached integrally to the toilet bowl 11, or may be detachably attached to the toilet bowl 11. The casing 12 houses a plurality of functional parts for operating the functions of the toilet unit 2. The functional parts include, for example, an opening / closing unit that controls the opening and closing of the toilet seat 20 and the toilet lid 30, a toilet seat heating unit that controls the temperature of the toilet seat 20, a private parts washing unit that cleans private parts of the human body, a deodorizing unit that reduces odorous components, and a communication unit that can communicate with a remote control, an information terminal 60, and the like. These functional parts are provided as needed. The casing 12 also houses a control unit 15 that controls these functional parts and a memory unit 17 that stores information about the functional parts.

[0023] The toilet seat 20 has an outer edge curved to match the external shape of the toilet bowl 11, and is pivotally supported relative to the casing 12. The toilet seat 20 has an opening 20a that penetrates into the bowl portion 11a. As shown in FIG. 1, this example shows a so-called O-shaped toilet seat 20 with the opening 20a formed in the center of the toilet seat 20. The toilet seat 20 is not limited to an O-shape and may be U-shaped or the like. A user U can defecate into the bowl portion 11a while sitting on the toilet seat 20. The toilet seat 20 has a seating portion 21 on which the user U sits, a bottom portion 22 facing the seating portion 21, and a recessed portion 23 recessed from the seating portion 21 toward the bottom portion 22.

[0024] Seating section 21 forms the upper surface of toilet seat 20 when toilet seat 20 is placed on toilet bowl 11 in the closed state, and is the part on which user U sits. Bottom section 22 faces the top surface of toilet bowl 11 in the vertical direction when closed. A heater wire and a heat insulating material are provided inside toilet seat 20 to keep seating section 21 warm. Also provided inside toilet seat 20 is a skin gas sensor 40, which will be described later.

[0025] As shown in FIG. 4, the recessed portion 23 is provided inside the toilet seat 20. The recessed portion 23 is provided in a portion of the toilet seat 20 that is located below the thigh U1 of a user U seated on the seating portion 21. As shown in FIG. 1, in this example, the recessed portion 23 is provided to the left of the center in the left-right direction of the toilet seat 20. In other words, the recessed portion 23 is located below the left thigh U1 of a user U seated on the toilet seat 20. Note that the recessed portion 23 may also be provided to the right of the center in the left-right direction of the toilet seat 20.

[0026] Recess 23 has sidewall 23a extending from seat 21 toward bottom 22, and undersurface 23b connecting the lower ends of sidewall 23a. The upper side of recess 23 is covered by seat 21. That is, recess 23 is located on the undersurface 21b side of seat 21, and forms space S that is surrounded above, below, in front, behind, left, and right sides. Skin gas sensor 40 is provided in this space S.

[0027] The seat 21 has a through-hole 24 that penetrates from the upper surface 21a to the lower surface 21b at a position corresponding to the recess 23. The through-hole 24 connects the space S to the outside of the toilet seat 20. The through-hole 24 serves as a gas flow path that guides skin gas G emitted from the thighs U1 of a user U seated on the seat 21 into the space S of the recess 23. Here, skin gas refers to gas containing volatile components that is emitted from the surface of a person's body. The emission pathways of skin gas can be classified into surface-reaction-derived pathways, in which components of sweat and sebum interact with resident bacteria and are emitted from the skin surface; skin gland-derived pathways, in which components in blood volatilize and are emitted directly from the skin; and blood-derived pathways, in which components in blood volatilize and are emitted directly from the skin. In this example, blood-derived skin gas is the target. The through-hole 24 may be provided with a filter (not shown) that allows gas to pass through but blocks liquid from passing through. This can prevent water and the like from entering the inside of the recessed portion 23.

[0028] The toilet lid 30 is pivotally supported on the casing 12. When closed, the toilet lid 30 covers the toilet seat 20. The toilet lid 30 is provided as needed and can be omitted.

[0029] Skin gas sensor 40 is provided in toilet device 10 and detects skin gas G emitted from the skin of user U. Skin gas sensor 40 detects skin gas G derived from the blood of user U. Skin gas sensor 40 can be, for example, a semiconductor gas sensor, an electrochemical sensor, a gas heat transfer sensor, a surface acoustic wave sensor, a catalytic combustion sensor, an optical sensor, a carbon nanotube sensor, a graphene sensor, an optical fiber sensor, a thin film sensor, a MEMS thermal conduction sensor, a micro thermoelectric sensor, an electromotive force change sensor, a gas chromatography measurement sensor, a VOC (volatile organic compound) sensor, or the like.

[0030] Skin gas sensor 40 is provided on toilet seat 20. Specifically, as shown in FIG. 4, skin gas sensor 40 is located below upper surface 21a of seating portion 21 and provided in recess 23. That is, skin gas sensor 40 is provided in recess 23 without contacting thigh U1 of user U. Skin gas G emitted from thigh U1 of user U flows into space S through through-hole 24. Skin gas sensor 40 detects skin gas G that has filled space S. The detection results of skin gas sensor 40 are transmitted to management device 70 via information terminal 60, which will be described later. Management device 70 estimates the metabolic state of user U based on the detection results of skin gas sensor 40.

[0031] The seating sensor 45 detects whether the user U sits on or leaves the toilet seat 20. The seating sensor 45 is a contact sensor such as a tactile switch, electrostatic sensor, or strain sensor provided on the toilet seat 20. The seating sensor 45 may also be a pyroelectric sensor or distance sensor (infrared sensor) provided on the casing 12. The detection result of the seating sensor 45 is transmitted to the management device 70 via the information terminal 60 described below. The seating sensor 45 is provided as needed.

[0032] Control unit 15 is provided inside casing 12. Control unit 15 is connected to skin gas sensor 40 and seating sensor 45. Control unit 15 transmits the detection results of skin gas sensor 40 and seating sensor 45 to information terminal 60 via a communication unit (not shown). Control unit 15 also controls the operation of functional units provided inside casing 12. Note that the control of the functional units may be performed by a control unit separate from control unit 15.

[0033] Memory unit 17 stores information on skin gas sensor 40, information on seating sensor 45, and information on the functional units. Information on skin gas sensor 40 includes the detection results of skin gas sensor 40. Information on seating sensor 45 includes the detection results of seating sensor 45. Memory unit 17 also stores a program for controlling the operation of the functional units. Control unit 15 operates the functional units based on the program stored in memory unit 17.

[0034] The information terminal 60 is, for example, a smartphone or tablet terminal owned by the user U. However, the information terminal 60 is not limited to these and may be any terminal usable by the user U, such as a PC terminal. The information terminal 60 may be, for example, a remote control for operating the functional units of the toilet device 10. The information terminal 60 has a control unit 60a and a notification unit 60b.

[0035] The information terminal 60 is directly connected to the toilet device 10 via wireless communication. The information terminal 60 is capable of communicating with the toilet device 10 according to a Bluetooth (registered trademark) standard such as BLE (Bluetooth Low Energy). The information terminal 60 is also connected to the management device 70 via a network (e.g., the Internet). The information terminal 60 transmits various pieces of information transmitted from the toilet device 10 to the management device 70. The information terminal 60 also transmits various pieces of information transmitted from the management device 70 to the toilet device 10.

[0036] A program (application software) for using the toilet system 600 is installed in the information terminal 60. The control unit 60a operates the toilet system 600 based on the program. The control unit 60a also causes the notification unit 60b to notify various pieces of information transmitted from the toilet device 10 and the management device 70. The notification unit 60b is, for example, a display screen that displays various pieces of information. The notification unit 60b may also be an audio output unit that notifies various pieces of information by voice. The notification unit 60b notifies the estimation result of the metabolic state estimated by the control unit 70a of the management device 70.

[0037] The management device 70 is installed at a location away from the toilet room. The management device 70 is, for example, a cloud server, and is connected to the information terminal 60 via a network. The management device 70 may be installed in a building in which the toilet room is installed. The management device 70 has a control unit 70a and a storage unit 70b.

[0038] The control unit 70a estimates the metabolic state of the user U based on the detection results of the skin gas sensor 40. The memory unit 70b stores programs for skin gas control processing and skin gas and body temperature control processing for estimating the metabolic state of the user U.

[0039] FIG. 5 is an explanatory diagram showing a series of flows of the behavior of a user who uses the toilet unit and the control process for estimating the metabolic state.

[0040] First, after entering the toilet, the user U performs personal authentication using the information terminal 60. The user U, for example, starts up application software on the information terminal 60, and performs personal authentication between the user U and the toilet device 10. Note that any method may be used to perform personal authentication of the user U who has entered the toilet, as long as it is possible to perform personal authentication of the user U.

[0041] Furthermore, the toilet system 600 obtains consent from the user U to skin gas detection. For example, the toilet system 600 obtains consent from the user U to skin gas detection by the user U operating the information terminal 60. Note that the toilet system 600 may obtain consent from the user U to skin gas detection by any method. When consent from the user U is obtained, the toilet system 600 becomes available for use.

[0042] Thereafter, when user U sits on toilet seat 20, sensor detection is performed by skin gas sensor 40. That is, skin gas sensor 40 detects skin gas G emitted from the skin (thigh U1) of user U. Control unit 15 of toilet device 10 transmits the detection result of skin gas sensor 40 to information terminal 60. In addition, information terminal 60 transmits the received detection result to management device 70 together with the user's unique identification information.

[0043] When user U leaves toilet seat 20, sensor detection by skin gas sensor 40 ends. Control unit 15 of toilet device 10 transmits the end of detection by skin gas sensor 40 to information terminal 60. Information terminal 60 also transmits the end of detection together with the user's unique identification information to management device 70. Note that control unit 15 of toilet device 10 may transmit the detection results while user U was sitting on toilet seat 20 to information terminal 60 together after user U leaves toilet seat 20.

[0044] Control unit 70a of management device 70 estimates the metabolic state of user U from the detection results of skin gas sensor 40. Storage unit 70b of management device 70 stores a calibration curve showing the relationship between known gas amounts and the output values ​​of skin gas sensor 40. Control unit 70a calculates the difference between the output value of skin gas sensor 40 detected when user U is seated on toilet seat 20, for example, and the maximum output value of skin gas sensor 40 detected while user U is seated on toilet seat 20.

[0045] It should be noted that skin gas G of the user U who previously used the toilet device 10 may remain in the recess 23. Therefore, the control unit 70a may determine that it is not possible to estimate the metabolic state if the output value of the skin gas sensor 40 detected when the user U sits on the toilet seat 20 is equal to or greater than a predetermined value.

[0046] The control unit 70a calculates the amount E of the skin gas G (hereinafter referred to as the gas amount E) by applying the calculated difference value to a calibration curve stored in the memory unit 70b. The gas amount E is, for example, a diffusion flux. The metabolic state of the user U may be estimated from the concentration of the skin gas G.

[0047] The control unit 70a estimates the metabolic state of the user U based on the calculated gas amount E. The control unit 70a transmits the calculated gas amount E and the estimated result of the metabolic state of the user U to the information terminal 60. The control unit 60a of the information terminal 60 causes the notification unit 60b to notify the received gas amount E and the estimated result of the metabolic state. The user U can recognize his or her own metabolic state by checking the notification unit 60b.

[0048] Next, the skin gas control process executed by the control unit 70a will be described with reference to FIG. 6. The control unit 70a estimates the female cycle of the user U as the metabolic state of the user U. The female cycle is the so-called menstrual cycle. Estimating the female cycle includes, for example, estimating at least one of the follicular phase, luteal phase, menstrual phase, and ovulation day. It is known that at a certain female cycle, lactone, 1-hexanol, 3-hydroxy-3-methylhexanoic acid, ethyl mercaptan, and the like are produced by female hormones (Yoshika Sekine, Influence of Ingestion of Lactulose on γ-Lactones Emanating from Human Skin Surface, Appl. Sci. 2023, 13(6), 3930 and Volatile organic compounds from human skin as biomarkers of menstruation phase and severity of premenstrual syndrome: An exploratory pilot study, Cell Press, 2023). Lactone, 1-hexanol, 3-hydroxy-3-methylhexanoic acid, and ethyl mercaptan dissolve in the blood, volatilize from the blood, and dissipate from the skin (body surface) of user U. Therefore, during a given female cycle, the concentrations of lactone, 1-hexanol, 3-hydroxy-3-methylhexanoic acid, and ethyl mercaptan in the blood increase, leading to increased amounts of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas dissipating from the skin. Therefore, control unit 70a can estimate user U's female cycle based on the amounts of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas. In this example, skin gas sensor 40 detects lactone gas. The number of carbon atoms in the lactone gas detected by skin gas sensor 40 is, for example, 6 to 11.

[0049] FIG. 6 is a flowchart showing an example of a skin gas control process executed by the control unit. The control process shown in FIG. 6 is stored in advance in the storage unit 70b of the management device 70.

[0050] Here, the user U performs an initial setting before using this toilet system 600. This initial setting is to store an initial value of the amount of lactone gas emitted from the skin of the user U in the memory unit 70b. In the initial setting, for example, the amount of lactone gas when the user U is in her menstrual period is stored as the initial value of the amount of lactone gas. At this time, the user U inputs her menstrual period. The user U can determine that she is in her menstrual period based on the presence or absence of bleeding, etc.

[0051] After user U is personally authenticated using information terminal 60, he or she operates information terminal 60 to instruct initial setup and sits on toilet seat 20. Skin gas sensor 40 detects lactone gas emitted from the skin (thigh U1) of user U sitting on toilet seat 20. Control unit 15 of toilet device 10 transmits the output value of skin gas sensor 40 to information terminal 60. Information terminal 60 transmits the received output value of skin gas sensor 40 as initial setup information together with the user's unique identification information to management device 70 via the Internet.

[0052] Control unit 70a of management device 70 stores the amount E of lactone gas calculated from the output value (difference value) of skin gas sensor 40 transmitted from information terminal 60 in memory unit 70b as an initial value. Control unit 70a stores a value twice the initial value of the amount of lactone gas in memory unit 70b as a first threshold E1. The initial value of the amount of lactone gas and first threshold E1 are stored in memory unit 70b in association with the user's unique identification information. The initial value of the amount of lactone gas may be the result of a single detection performed by skin gas sensor 40 in the initial settings, or may be the average of multiple detection results performed by skin gas sensor 40 in the initial settings. First threshold E1 may be a value previously stored in memory unit 70b.

[0053] When the initial value of the amount of lactone gas and the first threshold value E1 are stored in the memory unit 70b in the initial setting, the control unit 70a estimates the female menstrual cycle of the user U based on S601 to S604 of FIG.

[0054] In S601, the amount E of lactone gas is calculated. That is, control unit 70a calculates the amount E of gas from the output value of skin gas sensor 40 transmitted from information terminal 60. Control unit 70a also acquires a first threshold value E1 of identification information that is the same as the user-specific identification information transmitted from information terminal 60. Control unit 70a also stores the calculated amount E of gas in memory unit 70b.

[0055] Next, in S602, it is determined whether the gas amount E is equal to or greater than the first threshold value E1 (E≧E1). The control unit 70a compares the currently calculated gas amount E with the first threshold value E1. If S602 returns "YES," that is, if it is determined that the gas amount E is equal to or greater than the first threshold value E1, the process proceeds to S603. On the other hand, if S602 returns "NO," that is, if it is determined that the gas amount E is less than the first threshold value E1, the process proceeds to S604.

[0056] In S603, it is estimated that "it is the follicular phase." That is, if the gas amount E calculated this time is equal to or greater than twice the initial value of the amount of lactone gas for user U, the control unit 70a estimates that "it is the follicular phase" and ends the process. The control unit 70a also transmits a signal indicating that "it is the follicular phase" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the follicular phase" from the notification unit 60b. The control unit 70a also stores the estimation result in the memory unit 70b.

[0057] In S604, it is estimated that "it is the luteal phase or menstruation period." That is, if the currently calculated gas amount E is less than twice the initial value of the amount of lactone gas of the user U, the control unit 70a estimates that "it is the luteal phase or menstruation period" and ends the process. The control unit 70a also transmits a signal indicating that "it is the luteal phase or menstruation period" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the luteal phase or menstruation period." The control unit 70a also stores the estimation result in the memory unit 70b.

[0058] Next, another example of the skin gas control process executed by the control unit 70a will be described with reference to FIG. FIG. 7 is a flowchart showing another example of the skin gas control process executed by the control unit. The control process shown in FIG. 7 is stored in advance in the storage unit 70b of the management device 70.

[0059] In the example of FIG. 7, in the initial setting, an initial value of the amount of lactone gas, a first threshold value E1, and a second threshold value E2 are stored in the memory unit 70b. The initial value of the amount of lactone gas and the first threshold value E1 are the same as those in the example of FIG. 6. The second threshold value E2 is four times the initial value of the amount of lactone gas. The second threshold value E2 is a value greater than the first threshold value E1. The second threshold value E2 may be a value previously stored in the memory unit 70b.

[0060] When the initial value of the amount of lactone gas, the first threshold E1, and the second threshold E2 are stored in the memory unit 70b in the initial setting, the control unit 70a estimates the female menstrual cycle of the user U based on S611 to S616 of Figure 7.

[0061] In S611, the amount E of lactone gas (gas amount E) is calculated. That is, control unit 70a calculates gas amount E from the output value of skin gas sensor 40 transmitted from information terminal 60. Control unit 70a also acquires first threshold value E1 and second threshold value E2 of identification information that is the same as the user-specific identification information transmitted from information terminal 60. Control unit 70a also stores the calculated gas amount E in memory unit 70b.

[0062] Next, in S612, it is determined whether the gas amount E is equal to or greater than the first threshold value E1 (E≧E1). The control unit 70a compares the currently calculated gas amount E with the first threshold value E1. If the result of S612 is "YES," that is, if it is determined that the gas amount E is equal to or greater than the first threshold value E1, the process proceeds to S613. On the other hand, if the result of S612 is "NO," that is, if it is determined that the gas amount E is less than the first threshold value E1, the process proceeds to S616.

[0063] In S613, it is determined whether the gas amount E is equal to or greater than the second threshold value E2 (E≧E2). The control unit 70a compares the currently calculated gas amount E with the second threshold value E2. If S613 returns "YES," that is, if it is determined that the gas amount E is equal to or greater than the second threshold value E2, the process proceeds to S614. On the other hand, if S613 returns "NO," that is, if it is determined that the gas amount E is less than the second threshold value E2, the process proceeds to S615.

[0064] In S614, it is estimated that "it is the follicular phase, and tomorrow will be the ovulation day." That is, if the gas amount E calculated this time is four times or more the initial value of the amount of lactone gas for the user U, the control unit 70a estimates that "it is the follicular phase, and tomorrow will be the ovulation day," and ends the process. The control unit 70a also transmits a signal indicating that "it is the follicular phase, and tomorrow will be the ovulation day" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the follicular phase, and tomorrow will be the ovulation day" from the notification unit 60b. The control unit 70a also stores the estimation result in the memory unit 70b.

[0065] In S615, it is estimated that "it is the follicular phase, and tomorrow is not the ovulation day." That is, if the gas amount E calculated this time is equal to or greater than two times but less than four times the initial value of the amount of lactone gas for the user U, the control unit 70a estimates that "it is the follicular phase, and tomorrow is not the ovulation day," and ends the process. The control unit 70a also transmits a signal indicating that "it is the follicular phase, and tomorrow is not the ovulation day" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the follicular phase, and tomorrow is not the ovulation day" from the notification unit 60b. The control unit 70a also stores the estimation result in the memory unit 70b.

[0066] In S616, it is estimated that "it is the luteal phase or menstruation period." That is, if the currently calculated gas amount E is less than twice the initial value of the amount of lactone gas of the user U, the control unit 70a estimates that "it is the luteal phase or menstruation period" and ends the process. The control unit 70a also transmits a signal indicating that "it is the luteal phase or menstruation period" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the luteal phase or menstruation period." The control unit 70a also stores the estimation result in the memory unit 70b.

[0067] Next, the content notified by the notifying unit 60b of the information terminal 60 will be described. FIG. 8 is an explanatory diagram showing an example of the detection result of the skin gas sensor displayed on the notification unit of the information terminal. 9 and 10 are explanatory diagrams showing an example of a female cycle estimated by the control unit. The examples shown in FIGS. 8 and 9 are cases where it is estimated in S615 in FIG. 7 that "it is the follicular phase, and tomorrow is not the ovulation day." The example shown in FIG. 10 is a case where it is estimated in S614 in FIG. 7 that "it is the follicular phase and tomorrow is the ovulation day."

[0068] As shown in FIG. 8, notification unit 60b displays the detection result of skin gas sensor 40 as a skin gas score, for example. The skin gas score is calculated based on the amount of lactone gas, for example. In the example of FIG. 8, the skin gas score is set to be higher as the amount of lactone gas increases. The skin gas score may be calculated based on the concentration of lactone gas, for example. The skin gas score may be calculated based on the output value of skin gas sensor 40, for example. Notification unit 60b may display a comparison between the current skin gas score and the initial skin gas score. In the example of FIG. 8, it is displayed that the current skin gas score is 2.3 times the initial skin gas score. Notification unit 60b may display the detection result of skin gas sensor 40 as the amount of lactone gas or the concentration of lactone gas.

[0069] Notification unit 60b may display only the current detection result of skin gas sensor 40, or may display the current detection result of skin gas sensor 40 as well as the previous detection results of skin gas sensor 40. Notification unit 60b may also display changes in the detection results of skin gas sensor 40 in the form of a diagram or graph. Examples of diagrams and graphs showing changes in the detection results of skin gas sensor 40 include scatter plots and bar graphs. Diagrams and graphs showing changes in the detection results of skin gas sensor 40 may also display moving averages or medians. In the example of FIG. 8, notification unit 60b displays a line indicating the initial value of user U's skin gas score along with a scatter plot showing changes in the detection results of skin gas sensor 40 over a one-week period.

[0070] Notification unit 60b can display, for example, the detection results of skin gas sensor 40 on a daily, weekly, monthly, or yearly basis, allowing user U to understand changes over time in the detection results of skin gas sensor 40.

[0071] 9 and 10, the notification unit 60b displays, for example, the estimated result of the female cycle. The female cycle is classified into "in the follicular phase, and tomorrow will be the ovulation day," "in the follicular phase, and tomorrow will not be the ovulation day," and "in the luteal phase or menstrual phase." In the example of FIG. 9, the notification unit 60b displays "in the follicular phase, and tomorrow will not be the ovulation day." In the example of FIG. 10, the notification unit 60b displays "in the follicular phase, and tomorrow will be the ovulation day."

[0072] 7, if it is estimated that "it is the luteal phase or the menstrual period," the notification unit 60b will display "it is the luteal phase or the menstrual period." This allows the user U to recognize her own female cycle when using the toilet device 10.

[0073] The notification unit 60b may notify, along with the current estimation result (female cycle), a recommendation for the current estimation result (female cycle). In the example of FIG. 9, the notification unit 60b displays that "You are in the follicular phase, and tomorrow is not your ovulation date," and also notifies the recommendation, "Your mind and body are stable. Try starting something new or going out on the weekend!" In the example of FIG. 10, the notification unit 60b displays that "You are in the follicular phase, and tomorrow is your ovulation date," and also notifies the recommendation, "Perfect for trying to get pregnant!" For example, if the notification unit 60b estimates that "You are in the luteal phase or menstrual phase" in S616 of FIG. 7, it displays that "You are in the luteal phase or menstrual phase," and also notifies the recommendation, "Your mind and body will be unstable. Spend time in a relaxing environment! If you experience menstrual pain, take it easy and rest!"

[0074] Next, a toilet system 610 according to a second embodiment of the present invention will be described with reference to Figures 11 to 16. The toilet system 610 estimates the female menstrual cycle of a user U based on the detection results of the skin gas sensor 40 and the detection results of the body temperature sensor 54. FIG. 11 is a block diagram showing a communication system of the toilet system according to the second embodiment of the present invention. FIG. 12 is a side view showing the positional relationship between a user seated on a toilet seat, the skin gas sensor, and the body temperature sensor. As shown in FIGS. 11 and 12, the toilet system 610 is the same as the toilet system 600 except that the toilet unit 2 further includes a body temperature sensor 54 .

[0075] The body temperature sensor 54 is provided in the toilet device 10 and detects the body temperature of the user U. The body temperature sensor 54 is connected to the control unit 15.

[0076] Body temperature sensor 54 is provided on toilet seat 20. When body temperature sensor 54 detects that user U is seated, body temperature sensor 54 detects the body temperature of user U. That is, body temperature sensor 54 detects the body temperature of user U while seated. The detection result of body temperature sensor 54 is transmitted to management device 70 via information terminal 60. Management device 70 estimates the metabolic state of user U based on the detection result of skin gas sensor 40 and the detection result of body temperature sensor 54.

[0077] Similar to toilet system 600, toilet system 610 obtains user U's consent to skin gas detection and body temperature detection. When user U sits on toilet seat 20, sensor detection is performed by skin gas sensor 40 and body temperature sensor 54. The detection results of skin gas sensor 40 and body temperature sensor 54 are transmitted to management device 70 via information terminal 60. Control unit 70a of management device 70 calculates body temperature T from the output value of body temperature sensor 54.

[0078] The control unit 70a estimates the metabolic state of the user U based on the calculated gas amount E and body temperature T. The control unit 70a transmits the calculated gas amount E, body temperature T, and the estimated result of the metabolic state of the user U to the information terminal 60. The control unit 60a of the information terminal 60 causes the notification unit 60b to notify the received gas amount E, body temperature T, and the estimated result of the metabolic state. The user U can recognize his or her own metabolic state by checking the notification unit 60b.

[0079] Next, the skin gas and body temperature control process executed by the control unit 70a will be described with reference to FIG. 13. The control unit 70a estimates the female cycle as the metabolic state of the user U. As described above, during a given female cycle, the concentrations of lactone, 1-hexanol, 3-hydroxy-3-methylhexanoic acid, ethyl mercaptan, and other substances in the blood are thought to be high, leading to increased amounts of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas emitted from the skin. Furthermore, after ovulation, body temperature tends to rise due to the action of the female hormone progesterone. Therefore, body temperature during the luteal phase immediately after ovulation tends to be higher than, for example, body temperature during the menstrual period. Based on these factors, the control unit 70a can estimate the female cycle of the user U based on the body temperature and the amounts of any of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas. In this example, the skin gas sensor 40 detects lactone gas. The number of carbon atoms in lactone gas detected by skin gas sensor 40 is, for example, 6 to 11.

[0080] FIG. 13 is a flowchart showing the skin gas and body temperature control process executed by the control unit. The control process shown in FIG. 13 is stored in advance in the storage unit 70b of the management device 70.

[0081] Here, the user U performs an initial setting before using this toilet system 610. This initial setting is performed by storing an initial value for the amount of lactone gas emitted from the user U's skin and an initial value for body temperature in the memory unit 70b. In the initial setting, for example, the amount of lactone gas when the user U is in her menstrual period is stored as the initial value for the amount of lactone gas. In the initial setting, for example, the body temperature when the user U is in her menstrual period is stored as the initial value for body temperature.

[0082] After user U has been personally authenticated using information terminal 60, he or she operates information terminal 60 to input initial setting instructions and sits on toilet seat 20. Skin gas sensor 40 detects lactone gas emitted from the skin (thigh U1) of user U sitting on toilet seat 20. Body temperature sensor 54 detects the body temperature of user U. Control unit 15 of toilet device 10 transmits the output value of skin gas sensor 40 and the output value of body temperature sensor 54 to information terminal 60. Information terminal 60 transmits the received output value of skin gas sensor 40 and the output value of body temperature sensor 54 as initial setting information to management device 70 via the Internet, together with the user's unique identification information.

[0083] Control unit 70a of management device 70 stores the amount of lactone gas calculated from the output value (difference value) of skin gas sensor 40 transmitted from information terminal 60 and the body temperature calculated from the output value of body temperature sensor 54 as initial values ​​in memory unit 70b. Control unit 70a stores a value twice the initial value of the amount of lactone gas as a first threshold E1, a value four times the initial value of the amount of lactone gas as a second threshold E2, and an initial value of the body temperature as a threshold T1 in memory unit 70b. The initial value of the amount of lactone gas, first threshold E1, second threshold E2, initial value of the body temperature, and threshold T1 are stored in memory unit 70b in association with the user's unique identification information. The initial value of the amount of lactone gas may be the result of a single detection by skin gas sensor 40 detected at the initial settings, or may be the average of multiple detection results by skin gas sensor 40 detected at the initial settings. The initial value of the body temperature may be the result of a single detection by body temperature sensor 54 detected at the initial settings, or may be the average of multiple detection results by body temperature sensor 54 detected at the initial settings. The first threshold E1, the second threshold E2, and the threshold T1 may be values ​​stored in advance in the storage unit 70b.

[0084] When the initial value of the amount of lactone gas, the first threshold E1, the second threshold E2, the initial value of body temperature, and the threshold T1 are stored in the memory unit 70b in the initial setting, the control unit 70a estimates the female menstrual cycle of the user U based on S621 to S628 of Figure 13.

[0085] In S621, the amount E of lactone gas (gas amount E) and the body temperature T are calculated. That is, control unit 70a calculates the gas amount E from the output value of skin gas sensor 40 transmitted from information terminal 60, and calculates the body temperature T from the output value of body temperature sensor 54 transmitted from information terminal 60. Control unit 70a also acquires first threshold E1, second threshold E2, and threshold T1 of identification information that is the same as the user-specific identification information transmitted from information terminal 60. Control unit 70a also stores the calculated gas amount E and body temperature T in memory unit 70b.

[0086] Next, in S622, it is determined whether the gas amount E is equal to or greater than the first threshold value E1 (E≧E1). The control unit 70a compares the currently calculated gas amount E with the first threshold value E1. If S622 returns "YES," that is, if it is determined that the gas amount E is equal to or greater than the first threshold value E1, the process proceeds to S623. On the other hand, if S622 returns "NO," that is, if it is determined that the gas amount E is less than the first threshold value E1, the process proceeds to S626.

[0087] In S623, it is determined whether the gas amount E is equal to or greater than the second threshold value E2 (E≧E2). The control unit 70a compares the currently calculated gas amount E with the second threshold value E2. If S623 returns "YES," that is, if it is determined that the gas amount E is equal to or greater than the second threshold value E2, the process proceeds to S624. On the other hand, if S623 returns "NO," that is, if it is determined that the gas amount E is less than the second threshold value E2, the process proceeds to S625.

[0088] In S624, it is estimated that "it is the follicular phase, and tomorrow will be the ovulation day." That is, if the gas amount E calculated this time is equal to or greater than four times the initial value of the amount of lactone gas for the user U, the control unit 70a estimates that "it is the follicular phase, and tomorrow will be the ovulation day," and ends the process. The control unit 70a also transmits a signal indicating that "it is the follicular phase, and tomorrow will be the ovulation day" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the follicular phase, and tomorrow will be the ovulation day" from the notification unit 60b. The control unit 70a also stores the estimation result in the memory unit 70b.

[0089] In S625, it is estimated that "it is the follicular phase, and tomorrow is not the ovulation day." That is, if the gas amount E calculated this time is equal to or greater than two times but less than four times the initial value of the amount of lactone gas for the user U, the control unit 70a estimates that "it is the follicular phase, and tomorrow is not the ovulation day," and ends the process. The control unit 70a also transmits a signal indicating that "it is the follicular phase, and tomorrow is not the ovulation day" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the follicular phase, and tomorrow is not the ovulation day" from the notification unit 60b. The control unit 70a also stores the estimation result in the memory unit 70b.

[0090] In S626, it is determined whether the body temperature T exceeds the threshold value T1 (T>T1). The control unit 70a compares the body temperature T calculated this time with the threshold value T1. If the result of S626 is "YES", that is, if it is determined that the body temperature T exceeds the threshold value T1, the process proceeds to S627. On the other hand, if the result of S626 is "NO", that is, if it is determined that the body temperature T is equal to or less than the threshold value T1, the process proceeds to S628.

[0091] In S627, it is estimated that "the user is in the luteal phase." That is, if the currently calculated gas amount E is less than twice the initial value of the amount of lactone gas for the user U and the body temperature T exceeds the initial body temperature, the control unit 70a estimates that "the user is in the luteal phase" and ends the process. The control unit 70a also transmits a signal indicating that "the user is in the luteal phase" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "the user is in the luteal phase" from the notification unit 60b. The control unit 70a also stores the estimation result in the memory unit 70b.

[0092] In S628, it is estimated that "it is the menstrual period." That is, if the currently calculated gas amount E is less than twice the initial value of the amount of lactone gas of the user U and the body temperature T is equal to or lower than the initial body temperature, the control unit 70a estimates that "it is the menstrual period" and ends the process. The control unit 70a also transmits a signal indicating that "it is the menstrual period" to the information terminal 60. The information terminal 60 issues a notification based on the signal indicating that "it is the menstrual period" from the notification unit 60b. The control unit 70a also stores the estimation result in the memory unit 70b.

[0093] Next, the content notified by the notifying unit 60b of the information terminal 60 will be described. FIG. 14 is an explanatory diagram showing an example of the detection result of the body temperature sensor displayed on the notification unit of the information terminal. 15 and 16 are explanatory diagrams showing an example of a female cycle estimated by the control unit. The examples shown in FIGS. 14 and 15 are cases where it is estimated that "it is in the luteal phase" in S627 in FIG. The example shown in FIG. 16 is a case where it is estimated in S628 in FIG. 13 that "it is the menstrual period."

[0094] As shown in Fig. 14, the notification unit 60b displays, for example, the detection result of the body temperature sensor 54. The notification unit 60b may also display a comparison between the current body temperature and the initial body temperature. In the example of Fig. 14, it displays that the current body temperature is 0.4°C higher than the initial body temperature.

[0095] The notification unit 60b may display only the current detection result of the body temperature sensor 54, or may display the current detection result of the body temperature sensor 54 as well as the previous detection results of the body temperature sensor 54. The notification unit 60b may also display changes in the detection results of the body temperature sensor 54 in the form of a diagram or graph. Examples of diagrams and graphs showing changes in the detection results of the body temperature sensor 54 include scatter plots and bar graphs. Diagrams and graphs showing changes in the detection results of the body temperature sensor 54 may also display moving averages or medians. In the example of FIG. 14, the notification unit 60b displays a line indicating the initial value of user U's body temperature along with a scatter plot showing changes in the detection results of the body temperature sensor 54 over a one-week period.

[0096] The notification unit 60b can display, for example, the detection result of the body temperature sensor 54 on a daily, weekly, monthly, or yearly basis, allowing the user U to understand changes in the detection result of the body temperature sensor 54 over time.

[0097] In the example of Fig. 15, the notification unit 60b displays "It is the luteal phase." In the example of Fig. 16, the notification unit 60b displays "It is the menstrual period."

[0098] Furthermore, if it is estimated in S624 in Fig. 13 that "you are in the follicular phase and tomorrow will be the ovulation day," the notification unit 60b will display "you are in the follicular phase and tomorrow will be the ovulation day." If it is estimated in S625 in Fig. 13 that "you are in the follicular phase and tomorrow will not be the ovulation day," the notification unit 60b will display "you are in the follicular phase and tomorrow will not be the ovulation day." This allows the user U to recognize her own female cycle when using the toilet apparatus 10.

[0099] The notification unit 60b may notify, along with the female cycle, of recommendations regarding the female cycle. In the example of FIG. 15, the notification unit 60b displays that "you are in the luteal phase" and notifies the recommendation, "your mind and body will be unstable. Spend time in a relaxing environment!" In the example of FIG. 16, the notification unit 60b displays that "you are in the menstrual period" and notifies the recommendation, "if you experience menstrual pain, do not push yourself and take it easy!" Furthermore, for example, if it is estimated in S624 of FIG. 13 that "you are in the follicular phase and tomorrow is the day of ovulation," the notification unit 60b displays that "you are in the follicular phase and tomorrow is the day of ovulation" and notifies the recommendation, "perfect for trying to get pregnant!" For example, if it is estimated in S625 in Figure 13 that "you are in the follicular phase and tomorrow is not the ovulation day," the notification unit 60b will display that "you are in the follicular phase and tomorrow is not the ovulation day," and will also notify with the suggestion that "you are feeling stable both physically and mentally. Try starting something new or going out on the weekend!"

[0100] The effects of the toilet systems 600 and 610 will be described below. Basal body temperature changes not only with the female cycle but also with physical condition. Therefore, even if basal body temperature changes, it is not necessarily due to the female cycle. Therefore, estimating the female cycle based solely on basal body temperature may result in poor accuracy.

[0101] In contrast, in toilet systems 600 and 610, control unit 70a estimates the female cycle based on the detection results of skin gas sensor 40, thereby enabling accurate estimation of the female cycle.

[0102] Furthermore, in toilet systems 600 and 610, skin gas sensor 40 detects at least one of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas, thereby enabling more accurate estimation of the female menstrual cycle.

[0103] Furthermore, in toilet system 610, control unit 70a estimates the female cycle based on the detection results of skin gas sensor 40 and body temperature sensor 54, thereby enabling more accurate estimation of the female cycle.

[0104] Furthermore, in the toilet systems 600 and 610, the notification unit 60b notifies the user U of a recommendation regarding the female cycle, thereby encouraging the user U to take appropriate measures according to the female cycle.

[0105] Furthermore, in the toilet systems 600 and 610, the skin gas sensor 40 is located below the upper surface of the seat 21 and provided in the recess 23, thereby enabling efficient detection of the skin gas G that fills the recess 23 (space S).

[0106] In the above-described embodiment, an example has been described in which the metabolic state of the user U is estimated by the control unit 70a of the management device 70. However, the present invention is not limited to this, and the metabolic state of the user U may be estimated by the control unit 15 of the toilet device 10 or the control unit 60a of the information terminal 60, for example.

[0107] In the above-described embodiment, the management device 70 and the information terminal 60 are communicatively connected via a network. However, the present invention is not limited to this. For example, the toilet device 10 and the management device 70 may be communicatively connected via a network. In other words, the detection results of the skin gas sensor 40 and the like may be transmitted to the management device 70 without going through the information terminal 60.

[0108] In the above-described embodiment, an example has been described in which the metabolic state is estimated based on the amount of skin gas G detected while seating on toilet seat 20 is detected by seating sensor 45. However, the present invention is not limited to this, and for example, seating sensor 45 may not be provided. In this case, the metabolic state may be estimated based on the amount of skin gas G detected for a predetermined time period from when user U is personally authenticated (or until personal authentication is canceled), for example.

[0109] Embodiments may include the following features.

[0110] (Configuration 1) a toilet device having a toilet seat on which a user sits; a skin gas sensor provided in the toilet device and configured to detect skin gas emitted from the skin of the user; a control unit that estimates the female menstrual cycle of the user based on the detection result of the skin gas sensor; A toilet system comprising: an alarm unit that notifies the estimation result of the control unit.

[0111] (Configuration 2) 2. The toilet system according to claim 1, wherein the skin gas sensor detects at least one of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas.

[0112] (Configuration 3) Further comprising a body temperature sensor for detecting the body temperature of the user, The toilet system according to configuration 1 or 2, wherein the control unit estimates the female cycle based on the detection results of the skin gas sensor and the detection results of the body temperature sensor.

[0113] (Configuration 4) The toilet system according to any one of configurations 1 to 3, wherein the notification unit notifies the user of the advice regarding the female menstrual cycle.

[0114] (Configuration 5) The toilet seat is a seating section on which the user sits; a bottom portion facing the seating portion; a recessed portion recessed from the seating portion toward the bottom portion; and 5. The toilet system according to any one of configurations 1 to 4, wherein the skin gas sensor is provided in the recessed portion, positioned below the upper surface of the seating portion.

[0115] The above describes embodiments of the present invention. However, the present invention is not limited to these descriptions. Design modifications made by a person skilled in the art to the above-described embodiments are also included within the scope of the present invention as long as they incorporate the features of the present invention. For example, the shape, dimensions, materials, arrangement, installation form, etc. of each element of a toilet system are not limited to those exemplified and can be modified as appropriate. Furthermore, the elements of the above-described embodiments can be combined to the extent technically possible, and such combinations are also included within the scope of the present invention as long as they incorporate the features of the present invention. [Explanation of symbols]

[0116] 2 Toilet Unit 10 Toilet equipment 11 Toilet 11a Bowl section 12 Casing 15 Control Unit 17 Memory section 20 toilet seats 20a opening 21 Seating area 21a Top surface 21b Bottom side 22 Bottom 23 Recess 23a Side wall part 23b Bottom part 24 through holes 30 toilet lid 40 Skin gas sensor 45 Seat sensor 54 Body Temperature Sensor 60 Information terminal 60a Control section 60b Notification Department 70 Management device 70a Control section 70b Storage section 600, 610 Toilet System G Skin gas S space U User U1 thigh

Claims

1. a toilet device having a toilet seat on which a user sits; a skin gas sensor provided in the toilet device and configured to detect skin gas emitted from the skin of the user; a control unit that estimates the female menstrual cycle of the user based on the detection result of the skin gas sensor; A toilet system comprising: an alarm unit that notifies the estimation result of the control unit.

2. 2. The toilet system according to claim 1, wherein the skin gas sensor detects at least one of lactone gas, 1-hexanol gas, 3-hydroxy-3-methylhexanoic acid gas, and ethyl mercaptan gas.

3. Further comprising a body temperature sensor for detecting the body temperature of the user, 2. The toilet system according to claim 1, wherein the control unit estimates the female cycle based on the detection results of the skin gas sensor and the body temperature sensor.

4. The toilet system according to claim 1, wherein the notification unit notifies the user of the advice regarding the female cycle.

5. The toilet seat is a seating section on which the user sits; a bottom portion facing the seating portion; a recessed portion recessed from the seating portion toward the bottom portion; and 5. The toilet system according to claim 1, wherein the skin gas sensor is provided in the recessed portion, positioned below an upper surface of the seating portion.

Images