Toilet system

Abstract

To provide a toilet system capable of easily estimating the state of body odor.SOLUTION: A toilet system comprising: a toilet device including 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 skin of the user; a controller configured to estimate a state of body odor 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 for detecting biological gases to grasp a person's health condition is known (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-107829 Summary of the Invention [Problem to be solved by the invention]

[0004] The biological gas detection device described in Patent Document 1 is portable, and therefore requires the user to hold the detection unit close to the skin for a certain period of time, which may make it inconvenient.

[0005] The present invention has been made based on the recognition of such a problem, and aims to provide a toilet system that can easily estimate the state of body odor. [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 analyzes the components of the skin gas detected by the skin gas sensor based on the detection results of the skin gas sensor and estimates the body odor state of the user; and an alarm unit that notifies the result of the estimation by the control unit.

[0007] According to this toilet system, the control unit estimates the user's body odor state based on the detection results of the skin gas sensor installed in the toilet device, making it easy to estimate the user's body odor state. In addition, the notification unit notifies the user of the estimation result, allowing the user to understand the body odor state when they go to the toilet.

[0008] A second aspect of the present invention is the toilet system of the first aspect, characterized in that the control unit estimates the intensity of the body odor, and the notification unit notifies the intensity of the body odor.

[0009] According to this toilet system, the notification unit estimates the strength of the body odor and notifies the user of the strength of the body odor, allowing the user to more accurately grasp the state of the body odor.

[0010] A third aspect of the present invention is the toilet system according to the second aspect, characterized in that the notification unit issues a recommendation according to the intensity of the body odor.

[0011] According to this toilet system, the notification unit notifies the user of a suggestion based on the strength of the body odor, thereby encouraging the user to take appropriate measures based on the strength of the body odor.

[0012] A fourth aspect of the present invention is a toilet system according to the first aspect, characterized in that the skin gas sensor is capable of detecting a plurality of the skin gases, the control unit estimates the type of body odor based on the type of the detected skin gas, and the notification unit notifies the type of body odor.

[0013] According to this toilet system, the control unit estimates the type of body odor and the notification unit notifies the user of the type of body odor, allowing the user to more accurately grasp the state of the body odor.

[0014] A fifth aspect of the present invention is a toilet system according to the fourth aspect, characterized in that the control unit estimates the intensity for each type of body odor, and the notification unit notifies the intensity for each type of body odor.

[0015] According to this toilet system, the control unit estimates the intensity of each type of body odor, and the notification unit notifies the user of the intensity of each type of body odor, allowing the user to more accurately grasp the state of their body odor.

[0016] A sixth aspect of the present invention is the toilet system according to the fourth aspect, characterized in that the notification unit notifies a recommendation according to the type of body odor.

[0017] According to this toilet system, the notification unit notifies the user of a suggestion according to the type of body odor, thereby encouraging the user to take appropriate measures according to the type of body odor.

[0018] A seventh aspect of the present invention is a toilet system according to any one of the first to sixth aspects, characterized in that the skin gas sensor detects at least one of 2-nonenal gas, acetic acid gas, isovaleric acid gas, and diacetyl gas.

[0019] According to this toilet system, the skin gas sensor detects at least one of 2-nonenal gas, acetic acid gas, isovaleric acid gas, and diacetyl gas, thereby enabling accurate estimation of body odor conditions such as body odor associated with aging, sweat odor, stuffy odor, and middle-aged oily odor, allowing users to more accurately grasp the state of their body odor. [Effects of the Invention]

[0020] According to an aspect of the present invention, a toilet system is provided that can easily estimate the state of body odor. [Brief explanation of the drawings]

[0021] [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 the toilet seat and the skin gas sensor when the toilet lid is in the open position. [Figure 4] FIG. 10 is a side view showing the position of the skin gas sensor when the toilet lid is closed. [Figure 5] 2 is a cross-sectional view of the toilet lid and the skin gas sensor in FIG. 1, as viewed from the direction of arrow AA. [Figure 6] FIG. 10 is an explanatory diagram showing a series of flows of the behavior of a user using a toilet unit and the control process for estimating the state of body odor. [Figure 7] 10 is a flowchart showing a skin gas control process executed by a 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. 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 10] FIG. 10 is an explanatory diagram showing an example of a body odor state estimated by the control unit. [Figure 11] FIG. 10 is an explanatory diagram showing an example of a body odor state estimated by the control unit. [Figure 12] FIG. 10 is an explanatory diagram showing an example of a body odor state estimated by the control unit. [Figure 13] FIG. 10 is an explanatory diagram showing an example of a body odor state estimated by the control unit. [Figure 14] FIG. 10 is an explanatory diagram showing an example of a body odor state estimated by the control unit. [Figure 15] FIG. 10 is an explanatory diagram showing an example of a body odor state estimated by the control unit. [Figure 16] FIG. 10 is an explanatory diagram showing an example of a body odor state estimated by the control unit. [Figure 17] FIG. 10 is a perspective view showing a toilet unit of a toilet system according to a second embodiment of the present invention. [Figure 18] FIG. 2 is a block diagram showing a communication system of the toilet system. [Figure 19] FIG. 10 is a side view showing the positional relationship between a user seated on the toilet seat and the skin gas sensor when the toilet lid is in the open position. [Figure 20] 18 is a cross-sectional view of the skin gas sensor in FIG. 17 as viewed from the direction of arrow BB. DETAILED DESCRIPTION OF THE INVENTION

[0022] 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.

[0023] 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 the toilet seat and the skin gas sensor when the toilet lid is in an open position. FIG. 4 is a side view showing the position of the skin gas sensor when the toilet lid is closed. FIG. 5 is a cross-sectional view of the toilet lid and the skin gas sensor in FIG. 1 as viewed from the direction of arrow AA.

[0024] The toilet system 100 estimates the body odor state of a user U. The toilet system 100 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.

[0025] 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.

[0026] 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.

[0027] The toilet seat 20 has an outer edge that is curved to match the external shape of the toilet bowl 11, and is rotatably supported on 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. The opening 20a is a hole through which the user U discharges excrement. While sitting on the toilet seat 20, the user U can discharge excrement into the bowl portion 11a through the opening 20a. The toilet seat 20 also has a seating portion 21 on which the user U sits.

[0028] The seating section 21 is the upper surface of the toilet seat 20 when the toilet seat 20 is placed on the toilet bowl 11 and in a closed state, and is the part on which the user U sits. Inside the toilet seat 20, a heater wire and a heat insulating material are provided to keep the seating section 21 warm.

[0029] The toilet lid 30 is pivotally supported relative to the casing 12. As shown in Figures 3 and 4, the toilet lid 30 can be opened and closed between a closed state (Figure 4) and an open state (Figure 3). As shown in Figure 4, the toilet lid 30 covers the toilet seat 20 in the closed state. As shown in Figure 3, the toilet lid 30 does not cover the toilet seat 20 in the open state. As shown in Figure 3, when using the toilet device 10, a user U sits on the toilet seat 20 with their back to the toilet lid 30 in the open state.

[0030] The toilet lid 30 has a shaft portion 31 and a main body portion 32. The shaft portion 31 is rotatable. The main body portion 32 is connected to the shaft portion 31. When the shaft portion 31 rotates, the main body portion 32 rotates relative to the casing 12. The main body portion 32 covers the top of the toilet seat 20 in the closed state. The main body portion 32 has an upper portion 32a and a lower portion 32b. In the open state, the upper portion 32a is located above the center CL of the main body portion 32 in the vertical direction. In the open state, the lower portion 32b is located below the center CL of the main body portion 32 in the vertical direction.

[0031] As shown in Figure 5, the main body 32 of the toilet lid 30 has a recessed portion 33. The recessed portion 33 is provided inside the main body 32 of the toilet lid 30. As shown in Figures 1 and 5, in this example, the recessed portion 33 is provided near the center of the main body 32 of the toilet lid 30 in the left-right direction.

[0032] The recess 33 has an inner wall 33a, an outer wall 33b, and a side wall 33c. The inner wall 33a forms the inner surface 32x of the main body 32 of the toilet lid 30. The inner surface 32x faces downward in the closed state and faces forward in the open state. The outer wall 33b forms the outer surface 32y of the main body 32 of the toilet lid 30. The outer surface 32y faces upward in the closed state and faces backward in the open state. The side wall 33c connects the inner wall 33a and the outer wall 33b. The recess 33 forms a space S that is surrounded above, below, forward, backward, left, and right. A skin gas sensor 40 and a suction device 42 are provided in this space S.

[0033] The inner wall portion 33a has a through-hole 34 penetrating from the inner surface 32x toward the space S at a position corresponding to the recessed portion 33. The through-hole 34 connects the space S to the outside of the toilet lid 30. The through-hole 34 serves as a gas flow path that guides skin gas G emitted from a user U seated on the seat 21 into the space S of the recessed portion 33. The suction device 42 guides the skin gas G emitted from the user U into the space S of the recessed portion 33 by sucking the air around the toilet lid 30. Here, skin gas refers to gas containing volatile components that is emitted from the human body surface. The emission pathways of skin gas can be classified into surface-reaction-derived, in which components of sweat and sebum interact with resident bacteria and are emitted from the skin surface; skin gland-derived, in which components in the blood evaporate and are emitted directly from the skin; and blood-derived, in which components in the blood volatilize and are emitted directly from the skin. In this example, surface-reaction-derived skin gas and skin gland-derived skin gas are the focus. A filter (not shown) that allows gas to pass through but blocks liquid from passing through may be provided in the through-hole 34. This makes it possible to prevent water and the like from entering the inside of the recess 33.

[0034] 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 a surface reaction of the skin of user U and skin gas G derived from the skin glands. 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.

[0035] Skin gas sensor 40 is provided on toilet lid 30. As shown in FIG. 5, in this example, skin gas sensor 40 is provided in recess 33 of main body 32 of toilet lid 30. Skin gas G emitted from the skin of user U flows into space S through through-hole 34. Skin gas sensor 40 detects skin gas G taken into space S by suction device 42. 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 body odor state of user U based on the detection results of skin gas sensor 40.

[0036] In this example, skin gas sensor 40 has an upper sensor 40a and a lower sensor 40b. Upper sensor 40a is provided on the upper portion 32a of main body 32. In this example, upper sensor 40a is provided at the upper end of the upper portion 32a of main body 32. Upper sensor 40a is disposed, for example, in a position close to the head of a user U seated on toilet seat 20. Upper sensor 40a is easily able to detect skin gas G emitted from the head of user U. Lower sensor 40b is provided lower than upper sensor 40a on main body 32. In this example, lower sensor 40b is provided on the lower portion 32b of main body 32. Lower sensor 40b may be provided on the upper portion 32a of main body 32 as long as it is lower than upper sensor 40a. Lower sensor 40b is disposed, for example, in a position close to the back of user U seated on toilet seat 20. Lower sensor 40b is easily able to detect skin gas G emitted from the back of user U. It is also possible to use only one skin gas sensor 40. In this case, skin gas sensor 40 may be provided at the position of upper sensor 40a or at the position of lower sensor 40b.

[0037] As shown in FIG. 3 , in the open state, the angle between the horizontal line HL and the line IL connecting skin gas sensor 40 and shaft 31 is defined as angle θ. In this case, angle θ is preferably smaller than 110 degrees. In this example, in the open state, angle θ between the horizontal line HL and the line IL connecting upper sensor 40a and shaft 31 is smaller than 110 degrees. Furthermore, lower sensor 40b is located further forward than upper sensor 40a in the open state. Therefore, in the open state, the angle between the horizontal line HL and the line connecting lower sensor 40b and shaft 31 is smaller than 110 degrees.

[0038] 3, in the open state, skin gas sensor 40 is preferably located behind rear end 20ax of opening 20a of toilet seat 20. In this example, both upper sensor 40a and lower sensor 40b are located behind rear end 20ax of opening 20a of toilet seat 20 in the open state.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] A program (application software) for using the toilet system 100 is installed in the information terminal 60. The control unit 60a operates the toilet system 100 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 results of the body odor state estimation made by the control unit 70a of the management device 70.

[0045] 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.

[0046] The control unit 70a estimates the body odor state of the user U based on the detection result of the skin gas sensor 40. The storage unit 70b stores a skin gas control processing program for estimating the body odor state of the user U.

[0047] FIG. 6 is an explanatory diagram showing a series of flows of the behavior of a user using the toilet unit and the control process for estimating the state of body odor.

[0048] 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.

[0049] Furthermore, the toilet system 100 obtains consent from the user U to skin gas detection. For example, the toilet system 100 obtains consent from the user U to skin gas detection by the user U operating the information terminal 60. Note that the toilet system 100 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 100 becomes available for use.

[0050] Thereafter, when user U sits on toilet seat 20, sensor detection is performed by skin gas sensor 40. That is, suction device 42 is activated, and air around toilet lid 30, including skin gas G emitted from user U's skin, is drawn into space S. As a result, skin gas sensor 40 detects skin gas G emitted from user U's skin. 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.

[0051] 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.

[0052] Control unit 70a of management device 70 estimates the body odor 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.

[0053] It should be noted that skin gas G of the user U who previously used the toilet device 10 may remain in the recessed portion 33. Therefore, the control unit 70a may determine that it is not possible to estimate the body odor 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.

[0054] The control unit 70a calculates the amount E of skin gas G (hereinafter referred to as 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, an emissive flux. The body odor state of the user U may be estimated from the concentration of skin gas G.

[0055] The control unit 70a estimates the body odor 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 body odor 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 body odor state. The user U can recognize the state of his or her own body odor by checking the notification unit 60b.

[0056] Next, the skin gas control process executed by the control unit 70a will be described with reference to FIG. 7. Known body odors include the body odor caused by 2-nonenal, the sweat odor caused by acetic acid, the stuffy odor caused by isovaleric acid, and the middle-aged oily odor caused by diacetyl. These substances that cause body odor are generated along with sweat through sweat glands, or are generated by decomposition reactions by resident bacteria present on the skin surface or oxidation reactions of sebum on the skin surface. These substances that cause body odor are then emitted from the skin as skin gases. The amount and balance of skin gases change depending on age, gender, seasonal changes, etc., and therefore the intensity and type of body odor vary depending on age, gender, seasonal changes, etc. Therefore, the control unit 70a can estimate the state of body odor of the user U based on the amount and balance of skin gases.

[0057] Based on the detection results of skin gas sensor 40, control unit 70a analyzes the components of skin gas G detected by skin gas sensor 40 and estimates the body odor state of user U. That is, control unit 70a estimates the body odor state of user U based on what kind of skin gas G was detected. Control unit 70a analyzes the components of skin gas G detected by skin gas sensor 40, for example, by determining whether the detection results of skin gas sensor 40, which include multiple peaks, include a peak of a desired causative substance.

[0058] FIG. 7 is a flowchart showing 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] When the user U is personally authenticated by the information terminal 60, the control unit 70a estimates the body odor state of the user U based on steps S101 to S108 of Fig. 7. The following describes a case where the control unit 70a estimates the body odor intensity as the body odor state.

[0060] In S101, the amount of skin gas E (gas amount E) is calculated. That is, the control unit 70a calculates the gas amount E from the output value of the skin gas sensor 40 transmitted from the information terminal 60. The control unit 70a also acquires a first threshold E1, a second threshold E2, and a third threshold E3 for the amount of skin gas G. The control unit 70a also stores the calculated gas amount E in the memory unit 70b.

[0061] The first threshold E1, the second threshold E2, and the third threshold E3 are stored in advance in the memory unit 70b, for example. The first threshold E1 is, for example, five times the odorless line. The second threshold E2 is, for example, ten times the odorless line. The third threshold E3 is, for example, 100 times the odorless line. The odorless line is, for example, the minimum amount of odor that humans can detect. The odorless line is, for example, the olfactory threshold. The first threshold E1, the second threshold E2, and the third threshold E3 may be calculated, for example, based on the average or median of the amount E of skin gas of the user U.

[0062] Next, in S102, 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 S102 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 S103. On the other hand, if S102 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 S104.

[0063] In S103, it is estimated that the state is "no body odor" (i.e., odorless state). That is, if the gas amount E calculated this time is less than five times the value of the odorless line, the control unit 70a estimates that the state is "no body odor" and ends the process. The control unit 70a also sends a signal indicating that the state is "no body odor" to the information terminal 60. The information terminal 60 issues a notification from the notification unit 60b based on the signal indicating that the state is "no body odor". The control unit 70a also stores the estimation result in the memory unit 70b.

[0064] In S104, 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 S104 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 S105. On the other hand, if S104 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 S106.

[0065] In S105, the state is estimated to be "weak body odor." That is, if the gas amount E calculated this time is equal to or greater than five times the odorless line and less than ten times the odorless line, the control unit 70a estimates the state to be "weak body odor," and ends the process. The control unit 70a also transmits a signal indicating the state to be "weak body odor" to the information terminal 60. The information terminal 60 issues a notification from the notification unit 60b based on the signal indicating the state to be "weak body odor." The control unit 70a also stores the estimation result in the memory unit 70b.

[0066] In S106, it is determined whether the gas amount E is equal to or greater than the third threshold value E3 (E≧E3). The control unit 70a compares the currently calculated gas amount E with the third threshold value E3. If S106 returns "NO," that is, if it is determined that the gas amount E is less than the third threshold value E3, the process proceeds to S107. On the other hand, if S106 returns "YES," that is, if it is determined that the gas amount E is equal to or greater than the third threshold value E3, the process proceeds to S108.

[0067] In S107, it is estimated that the state is "moderate body odor." That is, if the gas amount E calculated this time is equal to or greater than 10 times the odorless line and less than 100 times the odorless line, the control unit 70a estimates that the state is "moderate body odor," and ends the process. The control unit 70a also transmits a signal indicating that the state is "moderate body odor" to the information terminal 60. The information terminal 60 issues a notification from the notification unit 60b based on the signal indicating that the state is "moderate body odor." The control unit 70a also stores the estimation result in the memory unit 70b.

[0068] In S108, it is estimated that the state is "strong body odor." That is, if the gas amount E calculated this time is 100 times the odorless line or more, the control unit 70a estimates that the state is "strong body odor" and ends the process. The control unit 70a also sends a signal indicating that the state is "strong body odor" to the information terminal 60. The information terminal 60 issues a notification from the notification unit 60b based on the signal indicating that the state is "strong body odor." The control unit 70a also stores the estimation result in the memory unit 70b.

[0069] Here, the control unit 70a has been described as estimating the intensity of body odor as the state of body odor. The control unit 70a may estimate the presence or absence of body odor as the state of body odor, or may estimate the type of body odor. The control unit 70a may also estimate the intensity of each type of body odor as the state of body odor.

[0070] When control unit 70a estimates the type of body odor, skin gas sensor 40 is used that can detect multiple skin gases G. Skin gas sensor 40 is preferably capable of detecting at least one of, for example, 2-nonenal gas, acetic acid gas, isovaleric acid gas, and diacetyl gas as skin gas G. Skin gas sensor 40 may be a single sensor that can detect multiple skin gases G, or may be a combination of multiple sensors that can detect a single skin gas G.

[0071] When a skin gas sensor 40 capable of detecting multiple skin gases G is used, the control unit 70a can estimate the type of body odor based on the type of detected skin gas G. For example, when the control unit 70a detects 2-nonenal gas, it estimates that there is an "old person's odor." For example, when the control unit 70a detects acetic acid gas, it estimates that there is a "sweat odor." For example, when the control unit 70a detects isovaleric acid gas, it estimates that there is a "stuffy odor." For example, when the control unit 70a detects diacetyl gas, it estimates that there is a "middle-aged oily odor."

[0072] Furthermore, when a skin gas sensor 40 capable of detecting multiple skin gases G is used, the control unit 70a estimates the body odor intensity shown in Fig. 7 for each of the multiple skin gases G detected by the skin gas sensor 40. This allows the control unit 70a to estimate the intensity for each type of body odor. In this case, the first to third threshold values ​​E1 to E3 for each skin gas G are calculated based on, for example, the odorless line for each skin gas G.

[0073] The control unit 70a can also estimate the overall body odor intensity based on the intensity of each type of body odor. The overall body odor intensity may be estimated based on, for example, the maximum value of the intensity of each type of body odor, the sum of the intensity of each type of body odor, or the average value of the intensity of each type of body odor.

[0074] Next, the content notified by the notifying unit 60b of the information terminal 60 will be described. 8 and 9 are explanatory diagrams showing examples of detection results of the skin gas sensor displayed on the notification unit of the information terminal. 10 to 16 are explanatory diagrams showing examples of the state of body odor estimated by the control unit. The examples shown in FIGS. 8, 9, 11, and 13 to 16 are cases where the state is estimated to be "moderate body odor" in S107 in FIG. The example shown in FIG. 10 is a case where the state is estimated to be "weak body odor" in S105 in FIG. The example shown in FIG. 12 is a case where the state of "strong body odor" is estimated in S108 in FIG.

[0075] As shown in FIG. 8, notification unit 60b may display the detection result of skin gas sensor 40 as the amount of skin gas, for example. Notification unit 60b may also display a comparison between the current gas amount E and the odorless line. In the example of FIG. 8, it is displayed that the amount of 2-nonenal gas currently emitted from user U is 20 times the odorless line. Notification unit 60b may display the detection result of skin gas sensor 40 as a gas concentration, or as a skin gas score in which the gas amount or gas concentration is replaced with a score.

[0076] 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 scatter plot showing changes in the detection results of skin gas sensor 40 over a one-week period, along with a line indicating the odorless line.

[0077] 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.

[0078] Furthermore, when skin gas sensor 40 has upper sensor 40a and lower sensor 40b, as shown in FIG. 9 , notification unit 60b displays the source of skin gas G based on, for example, the detection results of upper sensor 40a and lower sensor 40b. Notification unit 60b displays the amount of skin gas G emitted from user U's head based on, for example, the detection results of upper sensor 40a. Notification unit 60b displays the amount of skin gas G emitted from user U's back based on, for example, the detection results of lower sensor 40b. Notification unit 60b may display the amount of skin gas G emitted from user U's head and the amount of skin gas G emitted from user U's back in the form of a diagram or graph. In the example of FIG. 9 , notification unit 60b displays a bar graph indicating the amount of skin gas G emitted from user U's head and the amount of skin gas G emitted from user U's back.

[0079] Furthermore, the notification unit 60b notifies the source of the skin gas G as well as a recommendation for the source of the skin gas G. In the example of Fig. 9, the notification unit 60b displays that the amount of skin gas G emitted from the back of the user U is greater than the amount of skin gas G emitted from the head of the user U, and notifies the recommendation that "There seems to be a strong odor coming from your back. It would be a good idea to wipe your body with a sweat wipe or the like."

[0080] 10 to 16, the notification unit 60b displays, for example, the result of estimating the body odor state as the body odor intensity. The body odor intensity is displayed in four levels: "odorless," "weak," "medium," and "strong." In the example of FIG. 10, the body odor intensity is displayed as "weak." In the examples of FIG. 11 and FIGS. 13 to 16, the body odor intensity is displayed as "medium." In the example of FIG. 12, the body odor intensity is displayed as "strong."

[0081] 10 to 16, the notification unit 60b displays, for example, the intensity of each type of body odor. In the example of FIG. 10, the intensity of "sweat odor (acetic acid)" is "weak," and the intensities of "old-age odor (2-nonenal)," "stuffy odor (isovaleric acid)," and "middle-aged oily odor (diacetyl)" are "odorless." In the example of FIG. 11, the intensity of "sweat odor (acetic acid)" is "medium," and the intensities of "old-age odor (2-nonenal)," "stuffy odor (isovaleric acid)," and "middle-aged oily odor (diacetyl)" are "odorless." In the example of FIG. 12, the intensity of "sweat odor (acetic acid)" is "strong," and the intensities of "old-age odor (2-nonenal)," "stuffy odor (isovaleric acid)," and "middle-aged oily odor (diacetyl)" are "odorless." In the example of Fig. 13, it is displayed that the strength of "old man's odor (2-nonenal)" is "medium," the strength of "middle-aged oily odor (diacetyl)" is "weak," and the strengths of "sweat odor (acetic acid)" and "stuffy odor (isovaleric acid)" are "odorless." In the example of Fig. 14, it is displayed that the strength of "sweat odor (acetic acid)" is "medium," the strength of "stuffy odor (isovaleric acid)" is "weak," and the strengths of "old man's odor (2-nonenal)" and "middle-aged oily odor (diacetyl)" are "odorless." In the example of Fig. 15, it is displayed that the strength of "stuffy odor (isovaleric acid)" is "medium," the strength of "sweat odor (acetic acid)" is "weak," and the strengths of "old man's odor (2-nonenal)" and "middle-aged oily odor (diacetyl)" are "odorless." In the example of Figure 16, it is displayed that the intensity of "middle-aged oily odor (diacetyl)" is "medium," the intensity of "old-age odor (2-nonenal)" is "weak," and the intensities of "sweat odor (acetic acid)" and "stuffy odor (isovaleric acid)" are "odorless."

[0082] The notification unit 60b may display only the current body odor state estimation result, or may display the current body odor state estimation result as well as the previous body odor state estimation results. The notification unit 60b may also display changes in the body odor state estimation result in a diagram or graph. Examples of diagrams and graphs showing changes in the body odor state estimation result include scatter plots and bar graphs. Diagrams and graphs showing changes in the body odor state estimation result may also display moving averages or medians. In the examples of FIGS. 10 to 16, the notification unit 60b displays bar graphs showing the intensity of each type of body odor this time.

[0083] The notification unit 60b can display the estimated body odor state results on a daily, weekly, monthly, or yearly basis, for example. This allows the user U to understand the changes over time in the estimated body odor state results. Therefore, by understanding the changes over time in the estimated body odor state results, the user U can, for example, compare their current body odor state with their past body odor state, become aware of the average strength of their own body odor, and determine the effectiveness of their body odor countermeasures as a matter of etiquette.

[0084] As shown in FIGS. 10 to 16, the notification unit 60b notifies the user of the body odor state along with a recommendation for the body odor state. For example, the notification unit 60b notifies the user of the body odor strength along with a recommendation corresponding to the body odor strength. In the example of FIG. 10, the notification unit 60b displays the user's "weak body odor" state and notifies the user with the recommendation, "The current body odor level is weak. Please consider whether you need to take measures to combat the odor or whether you need to go out." In the example of FIG. 11, the notification unit 60b displays the user's "moderate body odor" state and notifies the user with the recommendation, "The current body odor level is medium. It is recommended that you take measures to combat the odor before going out." In the example of FIG. 12, the notification unit 60b displays the user's "strong body odor" state and notifies the user with the recommendation, "The current body odor level is strong. Please refrain from going out."

[0085] The notification unit 60b also notifies, for example, the strength of each type of body odor along with a recommendation corresponding to the type of body odor. In the example of FIG. 13, the notification unit 60b displays that the strength of the "old-age odor" is "medium" and notifies the recommendation, "The old-age odor seems particularly strong. Please take measures such as wearing perfume before going out." In the example of FIG. 14, the notification unit 60b displays that the strength of the "sweat odor" is "medium" and notifies the recommendation, "The sweat odor seems particularly strong. It is recommended that you take a shower or wipe your body with a sweat wipe." In the example of FIG. 15, the notification unit 60b displays that the strength of the "stable odor" is "medium" and notifies the recommendation, "The stuffy odor seems particularly strong. It is recommended that you take a shower or wipe your soles with a sweat wipe." In the example of FIG. 16, the notification unit 60b displays that the intensity of the "middle-aged oily odor" is "medium," and also notifies the user that "The middle-aged oily odor seems to be particularly strong. Please take measures such as wearing perfume before going out."

[0086] Next, a toilet system 110 according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 17 is a perspective view showing a toilet unit of a toilet system according to a second embodiment of the present invention. FIG. 18 is a block diagram showing a communication system of the toilet system. FIG. 19 is a side view showing the positional relationship between a user seated on the toilet seat and the skin gas sensor when the toilet lid is in the open position. FIG. 20 is a cross-sectional view of the skin gas sensor in FIG. 17 as viewed from the direction of arrow BB. As shown in FIGS. 17 to 20, the toilet system 110 is the same as the toilet system 100, except that the skin gas sensor 40 is provided on the protruding portion 35 of the toilet lid 30.

[0087] In the toilet system 110, the toilet lid 30 has a protrusion 35 in addition to the stem 31 and the main body 32. As shown in FIG. 19, in the open state, the protrusion 35 protrudes further toward the user U seated on the toilet seat 20 (i.e., forward) than the main body 32. The skin gas sensor 40 is provided on the protrusion 35. As shown in FIG. 17, in this example, the protrusion 35 is provided near the center of the main body 32 of the toilet lid 30 in the left-right direction. The protrusion 35 may be integral with the rim of the toilet lid 30.

[0088] The protrusion 35 has an upper protrusion 35a and a lower protrusion 35b. The upper protrusion 35a is provided on the upper part 32a of the main body 32. The lower protrusion 35b is provided on the main body 32 below the upper protrusion 35a. In this example, the lower protrusion 35b is provided on the lower part 32b of the main body 32. The lower protrusion 35b may also be provided on the upper part 32a of the main body 32, as long as it is below the upper protrusion 35a.

[0089] Skin gas sensor 40 has upper sensor 40a and lower sensor 40b. Upper sensor 40a is provided inside upper protrusion 35a. Lower sensor 40b is provided inside lower protrusion 35b. That is, upper sensor 40a is provided on upper portion 32a of main body 32. Furthermore, lower sensor 40b is provided below upper sensor 40a on main body 32.

[0090] As shown in FIG. 20, the protrusion 35 of the toilet lid 30 is hollow. The protrusion 35 has a first wall 35x, a second wall 35y, and a third wall 35z. The first wall 35x and the second wall 35y face each other. The third wall 35z connects the first wall 35x and the second wall 35y. The protrusion 35 forms a space S that is surrounded above, below, in front, behind, left, and right. A skin gas sensor 40 and a suction device 42 are provided in this space S.

[0091] The first wall portion 35x has a through-hole 36 that penetrates from the outside to the inside of the protrusion 35. The through-hole 36 connects the space S to the outside of the protrusion 35. The through-hole 36 serves as a gas flow path that guides skin gas G emitted from a user U seated on the seat 21 into the space S of the protrusion 35. The suction device 42 guides the skin gas G emitted from the user U into the space S of the protrusion 35 by sucking air around the toilet lid 30. Note that the through-hole 36 may be provided with a filter (not shown) that allows gas to pass through but blocks the passage of liquid. This prevents water and other contaminants from entering the inside of the protrusion 35.

[0092] As shown in FIG. 19 , in the open state, the angle between the horizontal line HL and the line IL connecting skin gas sensor 40 and shaft 31 is defined as angle θ. In this case, angle θ is preferably smaller than 110 degrees. In this example, in the open state, angle θ between the horizontal line HL and the line IL connecting upper sensor 40a and shaft 31 is smaller than 110 degrees. Furthermore, lower sensor 40b is located further forward than upper sensor 40a in the open state. Therefore, in the open state, the angle between the horizontal line HL and the line connecting lower sensor 40b and shaft 31 is smaller than 110 degrees.

[0093] 19, in the open state, skin gas sensor 40 is located behind rear end 20ax of opening 20a of toilet seat 20. In this example, both upper sensor 40a and lower sensor 40b are located behind rear end 20ax of opening 20a of toilet seat 20 in the open state.

[0094] In the toilet system 110, the control unit 70a also estimates the body odor state of the user U based on S101 to S108 in FIG.

[0095] The effects of the toilet systems 100 and 110 will be described below. The biological gas detection device described in Patent Document 1 is portable, and therefore requires the user to hold the detection unit close to the skin for a certain period of time, which may make it inconvenient.

[0096] In contrast, in the toilet systems 100 and 110, the control unit 70a can easily estimate the body odor state of the user U based on the detection results of the skin gas sensor 40 provided in the toilet device 10. Furthermore, the notification unit 60b notifies the user U of the estimation results, allowing the user U to understand the body odor state when visiting the toilet.

[0097] Furthermore, in the toilet systems 100 and 110, the control unit 70a estimates the body odor intensity, and the notification unit 60b notifies the user U of the body odor intensity, allowing the user U to more accurately grasp the state of the body odor.

[0098] Furthermore, in the toilet systems 100 and 110, the notification unit 60b notifies the user of a suggestion according to the strength of the body odor, thereby urging the user to take appropriate measures according to the strength of the body odor.

[0099] Furthermore, in the toilet systems 100 and 110, the control unit 70a estimates the type of body odor, and the notification unit 60b notifies the user U of the type of body odor, allowing the user U to more accurately grasp the state of the body odor.

[0100] Furthermore, in the toilet systems 100 and 110, the control unit 70a estimates the intensity of each type of body odor, and the notification unit 60b notifies the intensity of each type of body odor, allowing the user U to more accurately grasp the state of their body odor.

[0101] Furthermore, in the toilet systems 100 and 110, the notification unit 60b notifies the user U of a suggestion according to the type of body odor, thereby urging the user U to take appropriate measures according to the type of body odor.

[0102] Furthermore, in the toilet systems 100 and 110, the skin gas sensor 40 detects at least one of 2-nonenal gas, acetic acid gas, isovaleric acid gas, and diacetyl gas, thereby enabling accurate estimation of body odor conditions such as body odor associated with aging, sweat odor, stuffy odor, and middle-aged oily odor, thereby enabling the user U to more accurately grasp the state of their body odor.

[0103] Furthermore, in toilet systems 100, 110, by providing skin gas sensor 40 on toilet lid 30, skin gas sensor 40 can be positioned close to the upper body of user U seated on toilet seat 20. This allows skin gas G to be detected close to the upper body of user U, enabling accurate estimation of the body odor state. Furthermore, by providing skin gas sensor 40 on toilet lid 30, skin gas sensor 40 can be positioned away from toilet bowl 11. This allows skin gas G to be detected at a position that is less susceptible to the influence of fecal gases emitted from feces excreted into toilet bowl 11, enabling accurate estimation of the body odor state.

[0104] Furthermore, in the toilet system 100, the skin gas sensor 40 has an upper sensor 40a provided on the upper portion 32a of the main body 32 of the toilet lid 30, so that the skin gas sensor 40 can be placed in a position close to the head of the user U seated on the toilet seat 20. This allows the skin gas G to be detected in a position close to the head of the user U, allowing for an accurate estimation of the body odor state of the head. Furthermore, the upper sensor 40a is placed in a position farther away from the toilet bowl 11. This allows the skin gas G to be detected in a position less susceptible to the influence of fecal gas, allowing for a more accurate estimation of the body odor state.

[0105] Furthermore, in the toilet system 100, the skin gas sensor 40 further includes a lower sensor 40b that is located lower than the upper sensor 40a in the main body 32, so that the upper sensor 40a can be positioned near the head of the user U seated on the toilet seat 20, and the lower sensor 40b can be positioned near the back of the user U seated on the toilet seat 20. This allows the body odor state of the user U's head to be estimated based on the detection results of the upper sensor 40a, and the body odor state of the user U's back to be estimated based on the detection results of the lower sensor 40b. This allows the body odor of the user U's head and back to be estimated separately.

[0106] Furthermore, in the toilet system 110, the skin gas sensor 40 is provided on the protrusion 35, so that the skin gas sensor 40 can be placed closer to the upper body of the user U seated on the toilet seat 20. This allows the skin gas to be detected closer to the upper body of the user U, so that the state of body odor can be estimated with high accuracy.

[0107] Furthermore, in the toilet systems 100 and 110, in the open state, the angle θ between the horizontal line HL and the line IL connecting the skin gas sensor 40 and the shaft 31 is smaller than 110 degrees, so that in the open state, the skin gas sensor 40 can be positioned closer to the upper body of the user U seated on the toilet seat 20. This allows the skin gas G to be detected closer to the upper body of the user U, thereby enabling a more accurate estimation of the body odor state.

[0108] Furthermore, in the toilet systems 100 and 110, the skin gas sensor 40 is positioned behind the rear end 20ax of the opening 20a of the toilet seat 20 when in the open state, allowing the skin gas sensor 40 to be positioned away from the opening 20a. This allows the skin gas sensor 40 to be detected at a position that is less susceptible to the influence of fecal gas passing through the opening 20a, thereby enabling accurate estimation of the body odor state.

[0109] In the above-described embodiment, an example has been described in which the control unit 70a of the management device 70 estimates the body odor state of the user U. However, the present invention is not limited to this, and the body odor 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.

[0110] 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.

[0111] In the above-described embodiment, an example has been described in which the body odor state is estimated based on the amount of skin gas G detected while the seating sensor 45 detects that the user is sitting on the toilet seat 20. However, the present invention is not limited to this, and for example, the seating sensor 45 may not be provided. In this case, the body odor state may be estimated based on the amount of skin gas G detected for a predetermined time period from when the user U is personally authenticated (or until the personal authentication is canceled).

[0112] Embodiments may include the following features.

[0113] (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 analyzes the components of the skin gas detected by the skin gas sensor based on the detection result of the skin gas sensor and estimates the body odor state of the user; A toilet system comprising: an alarm unit that notifies the estimation result of the control unit.

[0114] (Configuration 2) The control unit estimates the intensity of the body odor, 2. The toilet system according to claim 1, wherein the notification unit notifies the user of the strength of the body odor.

[0115] (Configuration 3) The toilet system according to configuration 2, wherein the notification unit notifies a recommendation according to the strength of the body odor.

[0116] (Configuration 4) the skin gas sensor is capable of detecting a plurality of the skin gases; the control unit estimates the type of body odor based on the type of the detected skin gas; The toilet system according to any one of configurations 1 to 3, wherein the notification unit notifies the user of the type of body odor.

[0117] (Configuration 5) The control unit estimates the intensity of each type of body odor, The toilet system according to configuration 4, wherein the notification unit notifies the intensity of each type of body odor.

[0118] (Configuration 6) The toilet system according to configuration 4 or 5, wherein the notification unit notifies a recommendation according to the type of body odor.

[0119] (Configuration 7) 7. The toilet system according to any one of configurations 1 to 6, wherein the skin gas sensor detects at least one of 2-nonenal gas, acetic acid gas, isovaleric acid gas, and diacetyl gas.

[0120] 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]

[0121] 2 Toilet Unit 10 Toilet equipment 11 Toilet 11a Bowl section 12 Casing 15 Control Unit 17 Memory section 20 toilet seats 20a opening 20ax rear end 21 Seating area 30 toilet lid 31 Shaft 32 Main body 32a upper part 32b lower part 32x inner surface 32y external surface 33 Recess 33a Inner wall 33b Exterior wall 33c Side wall part 34, 36 Through holes 35 Protrusion 35a Upper protrusion 35b Lower protrusion 35x 1st wall 35y 2nd wall 35z 3rd wall section 40 Skin gas sensor 40a Upper sensor 40b Lower sensor 42 Suction device 45 Seat sensor 60 Information terminal 60a Control section 60b Notification Department 70 Management device 70a Control section 70b Storage section 100, 110 Toilet System CL center G Skin gas HL horizontal line IL straight line S space U User θ angle

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 analyzes the components of the skin gas detected by the skin gas sensor based on the detection result of the skin gas sensor and estimates the body odor state of the user; A toilet system comprising: an alarm unit that notifies the estimation result of the control unit.

2. The control unit estimates the intensity of the body odor, The toilet system according to claim 1 , wherein the notification unit notifies the intensity of the body odor.

3. The toilet system according to claim 2, wherein the notification unit notifies a user of a recommendation according to the intensity of the body odor.

4. the skin gas sensor is capable of detecting a plurality of the skin gases; the control unit estimates the type of body odor based on the type of the detected skin gas; The toilet system according to claim 1 , wherein the notification unit notifies the user of the type of body odor.

5. The control unit estimates the intensity of each type of body odor, The toilet system according to claim 4, wherein the notification unit notifies the intensity of each type of body odor.

6. The toilet system according to claim 4, wherein the notification unit notifies a user of a recommendation according to the type of body odor.

7. 7. The toilet system according to claim 1, wherein the skin gas sensor detects at least one of 2-nonenal gas, acetic acid gas, isovaleric acid gas, and diacetyl gas.

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