Bathroom system

Abstract

To properly understand the behavior of users in the bathroom. [Solution] The bathroom system according to the embodiment is characterized by comprising a detection means for detecting a user in the bathroom, and a display means for displaying the elapsed time the user has used the bathroom based on the detection result of the detection means.

Description

[Technical Field]

[0001] The disclosed embodiments relate to a bathroom system. [Background Art]

[0002] In recent years, techniques for estimating the state of various objects through sensing and other methods have been provided. For example, as a method for detecting the state of a user in a bathroom, a technique is known in which a radio radar is provided to estimate the user's posture, etc., and if an abnormality such as a fall occurs, the abnormality is notified via display, notification, ringing, etc. (see, for example, Patent Document 1). [Prior Art Literature] [Patent Literature]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2019-158862 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] The above-mentioned conventional technology for detecting (sensing) the state in a bathroom, such as detecting the state of a user in a bathroom, has the potential to be effectively used for various applications not limited to abnormality detection, and it is desired to provide services useful for users other than abnormality notification based on state detection in the bathroom. For example, it is desired to appropriately grasp the behavior of a user in a bathroom, which cannot be checked from outside the bathroom.

[0005] In view of the above points, the problem is to appropriately grasp the behavior of a user in a bathroom.

[0006] An object of the disclosed embodiments is to provide a bathroom system capable of appropriately grasping the behavior of a user in a bathroom. [Means for Solving the Problem]

[0007] A bathroom system according to one embodiment is characterized by comprising: detection means for detecting a user in the bathroom; and display means for displaying the elapsed time the user has used the bathroom based on the detection result of the detection means.

[0008] According to one embodiment of the bathroom system, by detecting a user in the bathroom and displaying the elapsed time the user has used the bathroom, other users can appropriately understand the actions of users while they are bathing. For example, the bathroom system displays information on the time a user spends in each area of ​​the bathroom, so other users can know how a user is spending their time in the bathroom, enabling safe and secure bathing. In this way, the bathroom system makes it possible to visualize a user's bathing behavior by detecting their use of the bathroom and displaying the time it takes.

[0009] In a bathroom system according to one embodiment, the display means displays the elapsed time of use of the bathroom, which includes at least one of the time the user stays in the first area where the bathtub is provided, the time the user stays in the second area where the water dispensing device is provided, or the time the water dispensing device in the bathroom is used.

[0010] According to one embodiment of the bathroom system, by displaying at least one of the following: the time spent in the first area where the bathtub is located, the time spent in the second area where the water dispenser is located, and the usage time of the water dispenser, it is possible to visualize in more detail the user's behavior in the bathroom, such as how the user spends their time in the bathroom.

[0011] In a bathroom system according to one embodiment, the bathroom is divided into a plurality of areas, and the display means displays the area where the user stays within the bathroom, superimposed on an area map of the bathroom.

[0012] According to one embodiment of the bathroom system, in addition to the elapsed time of use, the user's location within the bathroom is displayed, making it possible to understand the elapsed time since the start of bathing and the user's current location within the bathroom, thus enabling a quick grasp of the user's situation within the bathroom.

[0013] In a bathroom system according to one embodiment, the bathroom is divided into a first area where a bathtub is provided and a second area where a water dispensing device is provided, and the display means displays the time spent in the first area and the total time spent in the bathroom, based on the user's movement from the second area to the first area within the bathroom.

[0014] According to one embodiment of the bathroom system, the system displays the time spent in the bathroom, which is counted simultaneously with the movement to the first area where the bathtub is located, and the total time spent in the bathroom, thereby visualizing the user's actions in the bathroom and making it possible to understand how much of the time the user spends in the bathroom is spent soaking in the bathtub.

[0015] In a bathroom system according to one embodiment, the bathroom is divided into a first area where a bathtub is provided and a second area where a water dispensing device is provided, and the display means displays the time spent in the first area upon the end of the stay, based on the user's movement from the first area to the second area within the bathroom, as well as the total time spent in the bathroom.

[0016] According to one embodiment of the bathroom system, the display of the time spent in the bathroom, which stops counting at the same time as the user moves out of the first area where the bathtub is located, and the display of the time spent in the bathroom are displayed simultaneously, thereby making the user's actions in the bathroom visible and enabling it to understand how much of the time the user spends in the bathroom is spent soaking in the bathtub.

[0017] In a bathroom system according to one embodiment, the second area further includes a third area near the water dispensing device, and the display means updates the time the user starts using the bathroom or the elapsed time since the start of use, the time the user stays in the first area when the user is in the first area, and the time the user uses the water dispensing device or stays in the third area.

[0018] According to one embodiment of the bathroom system, the time when the user starts using the bathroom, the elapsed time since the user started using the bathroom, the time the user spends in each area of ​​the bathroom, and the usage time of the water dispenser are updated. This allows for detailed visualization of the user's actions within the bathroom, making it possible to understand how the user is using the bathroom.

[0019] In a bathroom system according to one embodiment, the system further comprises control means for controlling the display means based on user operation, wherein the control means switches and controls a plurality of display contents displayed on the display means based on the user operation, and the plurality of display contents include a first content that displays the time elapsed in use of the bathroom along with an area map of the bathroom, and a second display content that displays the user's activity history within the bathroom.

[0020] According to one embodiment of the bathroom system, both current and past bathroom usage can be visualized by switching between a real-time monitoring screen of the bathroom while the user is using it and a screen reviewing the user's activity history after they have finished using the bathroom.

[0021] In a bathroom system according to one embodiment, the system further comprises an evaluation means for evaluating the user's behavior history within the bathroom based on the detection result of the detection means, and the plurality of display contents further include a third display content that displays the evaluation result of the evaluation means.

[0022] According to the bathroom system according to an aspect of the embodiment, the quality of bathing can be evaluated from the user's behavior in the bathroom by evaluating the user's behavior history in the bathroom. Further, for example, according to the bathroom system, displaying the evaluation result of the behavior history allows the user to reflect on their bathing.

[0023] In the bathroom system according to an aspect of the embodiment, the bathroom system further comprises a storage means for storing the user's behavior history in the bathroom acquired based on the detection result of the detection means, the evaluation means evaluates the user's behavior history stored in the storage means based on a predetermined behavior rule relating to use of the bathroom, and the display means displays the evaluation result of the evaluation means.

[0024] According to the bathroom system according to an aspect of the embodiment, by recording the user's behavior along with time and also collecting equipment-side information such as water discharge status, a log of bathing behavior can be created and analyzed to determine whether the behavior conforms to the set rules and detect abnormalities. For example, the bathroom system can perform a relative comparison with ideal bathing by determining whether the behavior in the bathroom conforms to predetermined rules and procedures. Further, for example, the bathroom system allows the user to reflect on bathing by displaying the evaluation result. Accordingly, the bathroom system can evaluate the user's behavior regarding use of the bathroom.

[0025] In the bathroom system according to an aspect of the embodiment, the display means also serves as a notification means for notifying that the user's behavior history includes behavior outside the predetermined behavior rule.

[0026] According to the bathroom system according to an aspect of the embodiment, it is possible to notify that the user's behavior in the bathroom does not satisfy a predetermined behavior rule set in advance. Therefore, according to the bathroom system, for example, when a user does not comply with a rule determined by the family, it is possible to notify a user outside the bathroom that the rule is not being complied with.

[0027] In the bathroom system according to one aspect of the embodiment, the display unit also serves as a notification unit that notifies that the user's behavior has become a behavior exceeding a predetermined criterion based on the user's behavior history.

[0028] According to the bathroom system according to one aspect of the embodiment, in order to notify that the user's behavior has become a behavior exceeding a predetermined criterion, when there is a dangerous behavior that may lead to an accident in the bathroom, it is possible to notify a user outside the bathroom that such dangerous behavior has occurred.

[0029] In the bathroom system according to one aspect of the embodiment, the display unit displays evaluation target content indicating a bathroom user who is a target whose behavior history is evaluated by the evaluation unit based on a predetermined behavior rule in an overlapping manner on an area map of the bathroom.

[0030] According to the bathroom system according to one aspect of the embodiment, the evaluation target content indicating the evaluation target is displayed in an overlapping manner on the area map of the bathroom. Therefore, for example, by displaying an icon of the bathroom user on the area map of the bathroom, the bathroom system allows the user to identify the current bathroom user at a glance.

[0031] In the bathroom system according to one aspect of the embodiment, the predetermined behavior rule includes a plurality of individual rules, and the evaluation unit obtains an individual or overall bathing score for the user's behavior history based on the individual rules.

[0032] According to the bathroom system according to one aspect of the embodiment, by setting a plurality of rules, various behaviors such as hair washing, body washing, and warming in a bathtub can be evaluated, enabling comprehensive evaluation. Accordingly, the bathroom system can evaluate the user's behavior regarding the use of the bathroom. For example, in the bathroom system, by giving a comprehensive evaluation based on the pass / fail result of each rule, it becomes easier for the user to check daily progress.

[0033] In a bathroom system according to one embodiment, the detection means includes a radio wave sensor installed in the bathroom, which is formed by a plurality of panels, and detects the user's actions or location in the space within the bathroom, excluding the radio wave reflection area including the surface of the panels.

[0034] According to one embodiment of the bathroom system, by excluding the panel's position from the detection area, the position and movement of objects such as people in the room can be accurately estimated without being affected by strong reflected radio wave signals, and changes in the state of the bathroom can be appropriately estimated. As a result, the bathroom system can suppress a decrease in the accuracy of estimating changes in the state of the bathroom. [Effects of the Invention]

[0035] According to one embodiment of the system, the actions of users in the bathroom can be appropriately understood. [Brief explanation of the drawing]

[0036] [Figure 1] Figure 1 is a plan view showing an example of a bathroom to which the bathroom system according to the embodiment is applied, and a dressing room adjacent to the bathroom. [Figure 2] Figure 2 shows an example of a bathroom where the bathroom system according to the embodiment is applied. [Figure 3] Figure 3 is a block diagram showing an example configuration related to the control of the bathroom system according to the embodiment. [Figure 4] Figure 4 is a block diagram showing an example configuration related to state estimation according to the embodiment. [Figure 5] Figure 5 is a flowchart showing an example of the steps performed by the bathroom system. [Figure 6] Figure 6 shows an example of a point cloud detected by a radio wave sensor in a bathroom system. [Figure 7] Figure 7 shows an example of the intensity distribution of radio waves received by the radio wave sensor in the bathroom system. [Figure 8]Figure 8 shows an example of the distribution of Doppler velocity of radio waves received by a radio wave sensor in a bathroom system. [Figure 9] Figure 9 shows an example of a point cloud detected by a radio wave sensor in a bathroom system. [Figure 10] Figure 10 shows an example of the arrangement of antennas for a radio wave sensor. [Figure 11] Figure 11 shows an example of the arrangement of antennas for a radio wave sensor. [Figure 12] Figure 12 shows another example of a bathroom system configuration. [Figure 13] Figure 13 shows an example of the rules. [Figure 14] Figure 14 shows an example of an evaluation. [Figure 15] Figure 15 is a block diagram showing an example of the configuration of the control unit. [Figure 16] Figure 16 is a flowchart showing an example of the steps performed by the bathroom system. [Figure 17] Figure 17 is a top view showing an example of the division of a bathroom area. [Figure 18] Figure 18 shows an example of a screen displaying the elapsed time of bathroom use or the time of bathroom use. [Figure 19] Figure 19 shows an example of a screen that changes when the time bar is manipulated. [Figure 20] Figure 20 shows an example of how the display format differs depending on the user. [Figure 21] Figure 21 shows an example of a screen that includes the user's activity history. [Figure 22] Figure 22 shows an example of a screen that includes an evaluation of bathroom usage time and user behavior. [Figure 23] Figure 23 shows an example of notification when the rules for a predetermined action are not met. [Figure 24] Figure 24 shows an example of a notification when a predetermined criterion is exceeded. [Figure 25]Figure 25 is a block diagram showing an example of the configuration of the control unit. [Figure 26] Figure 26 is a flowchart showing an example of the steps performed by the bathroom system. [Modes for carrying out the invention]

[0037] The embodiments of the bathroom system disclosed herein will be described in detail below with reference to the attached drawings. However, the invention is not limited to the embodiments described below.

[0038] <1. Embodiments> <1-1. Examples of Bathroom System Applications> First, an overview of the information processing performed in the bathroom system 1 according to the embodiment (see Figure 3) will be described with reference to Figures 1 and 2. Figure 1 is a plan view showing an example of a bathroom to which the bathroom system according to the embodiment is applied, and a dressing room adjacent to the bathroom. Figure 2 is a diagram showing an example of the inside of a bathroom to which the bathroom system according to the embodiment is applied. Note that the arrangement of the radio wave sensor 10a shown in Figures 1 and 2 is just one example, and other arrangement examples will be described later.

[0039] In Figures 1 and 2, the bathroom system 1 is applied to a space (wet area) that includes a bathroom 2 and a dressing room 3 adjacent to bathroom 2 (adjacent room), and estimates changes in the state of the space within bathroom 2.

[0040] For example, bathroom 2 is a room composed of four side panels 2a, 2b, 2c, and 2d, a floor panel 2e, and a ceiling panel 2f. Note that the side panels 2a, 2b, 2c, and 2d, the floor panel 2e, and the ceiling panel 2f may sometimes be simply referred to as panels 2a to 2f, etc. In the following, for panels 2a to 2f, the side facing the space inside bathroom 2 will be referred to as the "front surface," and the side opposite the front surface, facing outside bathroom 2, will be referred to as the "back surface." For example, metal plates that constitute the radio wave reflection area are placed on the back side of multiple panels 2a to 2f.

[0041] Of the four side panels 2a, 2b, 2c, and 2d, the side panel 2d adjacent to the dressing room 3 is partially open, forming an entrance / exit 21 for entering and exiting from the dressing room 3 to the bathroom 2. The entrance / exit 21 is equipped with a door 22 that can be opened and closed. For example, a user of the bathroom 2 (also simply called "user") opens the door 22, enters the bathroom 2 from the dressing room 3 through the entrance / exit 21, closes the door 22, and takes a bath, shower, or performs other actions inside the bathroom 2. Inside the bathroom 2 are a bathtub 4, a bathroom counter 5, a shower device 6, a mirror 7, a shower bar 8, etc. Figure 1 shows the state in which user U is located inside the bathroom 2.

[0042] The bathtub 4 is positioned along the side panel 2b of the bathroom 2, extending from one side panel 2a adjacent to the side panel 2b to the other side panel 2c, and is configured as a roughly rectangular shape in a top view. For example, the bathtub 4 has an end 41 on the side panel 2a side, an end 42 on the side panel 2b side, an end 43 on the side panel 2c side, and an end 44 on the side panel 2d side in a top view. For example, when bathing, the user positions their body along the longitudinal direction in a top view, that is, along the ends 42 and 44. In this way, the user bathes with their head positioned on the end 43 side, using the end 43 of the bathtub 4 as a pillow, and their feet positioned on the end 41 side. The end 43, which is the pillow, may be provided with a member (such as an air cushion) to stabilize the person's head.

[0043] Furthermore, the overhead shower 6a of the shower device 6 is a fixed shower head fixed to the ceiling panel 2f of the bathroom 2. The side panel 2a of the bathroom 2 may also be provided with a radio wave sensor 10a that emits radio waves into the bathroom 2, and a control unit 100 (see Figure 3) that controls the water discharge by the shower device 6 based on the signal detected by the radio wave sensor 10a. A fixed shower head refers to a shower head in which the shower head or the piping supporting the shower head is fixed to the ceiling panel or side panel, and includes not only shower heads with a fixed water discharge direction, but also shower heads with a changeable water discharge direction. Additionally, areas other than the area where the bathtub 4 is located within the bathroom 2, for example, areas including at least the area where water is discharged by the overhead shower 6a, may be referred to as the washing area.

[0044] The bathroom counter 5 is a shelf mounted on the side panel 2a below the shower bar 8 and the mirror 7, and extends horizontally to a predetermined height. The mirror 7 is mounted on the side panel 2a to the side of the shower bar 8 and is configured as a vertically elongated rectangle.

[0045] As described above, an overhead shower 6a is fixed to the ceiling panel 2f. Additionally, a shower bar 8, a mirror 7, and a bathroom counter 5 are attached to one of the side panels 2a of the bathroom 2. Furthermore, the radio wave sensor 10a may be installed on the front side of the side panel 2a, i.e., the side facing into the bathroom 2 (front surface), or on the back side of the side panel 2a, i.e., the side facing out of the bathroom 2 (back surface).

[0046] In Figures 1 and 2, the radio wave sensor 10a is installed on panel 2a of the multiple panels 2a to 2f that make up the bathroom 2, excluding panel 2d, which has an entrance / exit 21 to the bathroom 2. Thus, the radio wave sensor 10a is installed on panels 2a to c, 2e, and 2f of the multiple panels 2a to 2f that make up the bathroom 2, excluding panel 2d, which has an entrance / exit 21 to the bathroom 2.

[0047] As shown in Figure 1, the radio wave sensor 10a is installed in a bathroom 2, which is a bathroom formed by multiple panels 2a to 2f, and detects changes in the state inside the bathroom 2. For example, the radio wave sensor 10a is a radio wave radar. The radio wave sensor 10a emits radio waves into the bathroom 2 and receives the reflected radio waves.

[0048] The radio wave sensor 10a has a detection range set to a predetermined range for detecting changes in the state within the bathroom 2. For example, the detection range of the radio wave sensor 10a includes a first space including the bathtub 4 installed in the bathroom 2, and a second space including the water discharge area of ​​the shower device 6 installed in the bathroom 2. In Figure 1, the range including the space where the bathtub 4 is located (approximately the left half of the space) corresponds to the first space. Also in Figure 1, the range including the area where water is discharged by the overhead shower 6a corresponds to the second space.

[0049] The detection range of the radio wave sensor 10a includes the end portion 43 that functions as the pillow portion of the bathtub 4 installed in the bathroom 2. For example, the detection range of the radio wave sensor 10a (the range of distances from which radio waves can be received, etc.) may include the back surface of at least one of the panels 2a to 2f that make up the bathroom 2. For example, the detection range of the radio wave sensor 10a may include an area exceeding at least one of the panels 2a to 2f that make up the bathroom 2. For example, the detection range of the radio wave sensor 10a may include the four corner areas of the bathroom 2 in a top view. Note that the detection range of the radio wave sensor 10a is not limited to the above and can be set to any range as long as the desired detection is possible. Also, in Figures 1 and 2, the radio wave sensor 10a is installed at a position higher than the upper end of the bathtub 4 installed in the bathroom 2. Note that the above arrangement of the radio wave sensor 10a is merely an example, and the radio wave sensor 10a may be installed at a position lower than the upper end of the bathtub 4 installed in the bathroom 2, for example, when the detection range includes the floor panel 2e, etc.

[0050] The shower device 6 is a shower device capable of spraying water from both the shower and the spout, and includes an overhead shower 6a fixed to the ceiling panel 2f, a hand shower 6b held on a shower bar 8, and a spout 6c attached to the side panel 2a.

[0051] The overhead shower 6a is fixed to the ceiling panel 2f of the bathroom 2 and is configured to spray water from above towards the bather. In Figures 1 and 2, the overhead shower 6a is positioned closer to side panels 2a and 2d than to side panels 2b and 2c when viewed from above. Specifically, the overhead shower 6a is positioned near the corner where side panel 2a, on which the mirror 7 is installed, intersects with side panel 2d, which is opposite the bathtub 4, and is configured to spray water from above the head of the bather in front of the mirror 7.

[0052] The shower bar 8 is provided on the side panel 2a and has a bar member 8a and a head holder 8b for holding the hand shower 6b. The bar member 8a is a bar-shaped member fixed to the side panel 2a so as to extend vertically, and extends parallel to the side panel 2a at a predetermined distance from the side panel 2a. The head holder 8b is attached to the bar member 8a so as to be slidable in the vertical direction and is configured to be adjustable to any height on the bar member 8a. The head holder 8b is configured to hold the hand shower 6b, and the hand shower 6b can be removed from the head holder 8b for use. That is, the hand shower 6b is not fixed to the side panel 2a. The hand shower 6b can be used either held by the user in their hand or held by the head holder 8b. In addition, a handrail can be provided as a bar-shaped member on the side panel of the bathroom 2.

[0053] The shower device 6 dispenses water in a manner corresponding to the user's operation, based on the user's operation of each component of the shower device 6. For example, if the user operates the overhead shower 6a, the shower device 6 dispenses water from the overhead shower 6a in a manner corresponding to the user's operation. For example, the bathroom system 1 may accept the user's operation of each component of the shower device 6 through physical components such as switches or levers. Alternatively, the bathroom system 1 may accept the user's gestures or hand signs as user operations of each component of the shower device 6 through sensors or the like.

[0054] The configuration described is merely an example, and the configuration of bathroom 2, etc., is not limited to that described above. For example, bathroom 2 may be provided with an operating unit (e.g., an operation panel) that accepts user operations. For example, an operating unit such as an operation panel has a display device that displays information and an operating device that accepts operations from any person (also called an "operator") such as a user. For example, the operating unit is used for switching modes, as described later. Furthermore, the manner in which user operations are accepted for each component of the shower device 6 described above is merely an example, and the bathroom system 1 may accept user operations for each component of the shower device 6 in various ways. For example, the bathroom system 1 may accept user operations for each component of the shower device 6 by an operating unit provided in bathroom 2. Alternatively, the bathroom system 1 may accept operations for each component of the shower device 6 from a user outside bathroom 2 (e.g., in the dressing room 3).

[0055] <1-2. Example of Bathroom System Configuration> Next, an example of the configuration of the bathroom system 1 will be described with reference to Figures 3 and 4. Figure 3 is a block diagram showing an example configuration related to the control of the bathroom system according to the embodiment. Figure 4 is a block diagram showing an example configuration related to state estimation according to the embodiment.

[0056] Bathroom system 1 includes, as control-related components (bathroom control system), a shower device 6, a microphone 9, a sensor unit 10, a control unit 100, a data storage unit 101, an input unit 102, a notification unit 103, lighting 104, a water temperature control unit 105a, a water volume control unit 105b, a bathtub water temperature control unit 106, a shoulder / waist bath control unit 107, air conditioning 108, and a ventilation fan 109. Note that the control-related components shown in Figure 3 are merely examples, and the control-related components of bathroom system 1 are not limited to those shown in Figure 3. For example, if bathroom system 1 does not have shoulder and waist bath functions, bathroom system 1 does not need to include the shoulder / waist bath control unit 107.

[0057] The shower device 6 has a discharge / stop control unit 60a (indicated as ON / OFF in Figure 3) that switches between discharging and stopping water from the overhead shower 6a (indicated as OH in Figure 3). For example, the flow path (water supply channel) controlled by the discharge / stop control unit 60a is connected to the overhead shower 6a, and the discharge and stoppage of water from the overhead shower 6a are switched according to the control of the discharge / stop control unit 60a.

[0058] Furthermore, the shower device 6 has a discharge / stop control unit 60b (indicated as ON / OFF in Figure 3) that switches between discharging and stopping water from the hand shower 6b (indicated as HS in Figure 3). For example, the flow path (water supply channel) controlled by the discharge / stop control unit 60b is connected to the hand shower 6b, and the discharge and stoppage of water from the hand shower 6b are switched according to the control of the discharge / stop control unit 60b.

[0059] Furthermore, the shower device 6 has a discharge / stop control unit 60c (indicated as ON / OFF in Figure 3) that switches between discharging and stopping water from the spout 6c (indicated as a tap in Figure 3). For example, the flow path (water supply channel) controlled by the discharge / stop control unit 60c is connected to the spout 6c, and the discharge and stopping of water from the spout 6c are switched according to the control of the discharge / stop control unit 60c. The discharge / stop control units 60a to 60c may be solenoid valves or the like.

[0060] Microphone 9 is a sensor device (microphone) that detects sound. When the bathroom system 1 performs personal identification by voice, microphone 9 detects the voice of the person for personal identification. When the bathroom system 1 performs anomaly estimation by voice, microphone 9 detects the sound inside the bathroom 2 for anomaly estimation.

[0061] Microphone 9 is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100. Microphone 9 transmits the acquired information to the control unit 100. Microphone 9 may also perform detection in response to instructions from the control unit 100. For example, microphone 9 is placed in a position to detect sound in a desired space such as the bathroom 2 or the dressing room 3. Microphone 9 may also be included in the sensor unit 10. Furthermore, if the bathroom system 1 accepts voice input, microphone 9 may function as part of the input unit 102.

[0062] The sensor unit 10 has a sensor device that detects information used by the bathroom system 1 for control. For example, the sensor unit 10 functions as a detection means for detecting changes in the state of the bathroom. The sensor unit 10 is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100. The sensor unit 10 transmits the acquired information to the control unit 100. The sensor unit 10 may also perform detection in response to instructions from the control unit 100. For example, the sensor unit 10 is installed in a bathroom formed by multiple panels and has a sensor device for detecting changes in the state of the bathroom. The sensor unit 10 has a radio wave sensor 10a.

[0063] As shown in Figure 4, the radio wave sensor 10a is connected to the control unit 100 so that it can send and receive information. The radio wave sensor 10a outputs data (output data) in response to receiving radio waves. The radio wave sensor 10a transmits the output data to the control unit 100 in response to receiving radio waves.

[0064] Here, we will briefly explain the process performed by the radio wave sensor 10a. The radio wave sensor 10a emits radio waves into the bathroom 2 and receives the reflected radio waves. For example, the radio wave sensor 10a emits radio waves in each direction so as to scan the inside of the bathroom 2. The radio waves emitted from the radio wave sensor 10a are emitted in each direction so as to cover the entire detection range of the radio wave sensor 10a. The radio wave sensor 10a receives the reflected waves of the emitted radio waves. In this way, the radio wave sensor 10a emits radio waves radially into the bathroom 2 and detects the radio waves that are reflected back.

[0065] Furthermore, the radio wave sensor 10a irradiates the bathroom 2 with radio waves of a predetermined frequency at predetermined time intervals and receives the reflected radio waves. For example, the radio wave sensor 10a irradiates millimeter waves in the 60 GHz band and receives the reflected waves. Note that the above is merely an example, and any frequency can be used for the radio waves irradiated by the radio wave sensor 10a, as long as the desired processing can be performed. For example, the radio waves irradiated by the radio wave sensor 10a are preferably in the 24 GHz band to 3 THz band, more preferably in the 60 GHz band to 79 GHz band.

[0066] The radio wave sensor 10a can detect how far the radio waves emitted in each direction have propagated before being reflected. This provides coordinate information of the point where the radio waves were reflected, and objects (reflectors) located within the detection range of the radio wave sensor 10a that reflect the radio waves emitted by the radio wave sensor 10a are detected as a point cloud by the radio wave sensor 10a (see, for example, Figure 6). Since the detection performed by the radio wave sensor 10a is the same as that performed by conventional radio wave radar, a detailed explanation is omitted.

[0067] Furthermore, the sensor unit 10 is not limited to the radio wave sensor 10a, but may have any other sensors. For example, the sensor unit 10 may have a door sensor that detects the opening and closing of the bathroom door 22. For example, the sensor unit 10 may have multiple radio wave sensors 10a, including a radio wave sensor 10a for estimating the movement or position of a user in the bathroom 2, and a radio wave sensor 10a for estimating the breathing state of a user in the bathroom 2. Thus, the sensor unit 10 may have multiple radio wave sensors 10a, but this point will be discussed later.

[0068] The control unit 100 is an information processing device that performs various information processing in the bathroom system 1. The control unit 100 performs various information processing based on information detected by the sensor unit 10, microphone 9, etc. For example, the control unit 100 estimates changes in the state inside the bathroom 2 based on the signal detected by the radio wave sensor 10a. The control unit 100 receives output data from the radio wave sensor 10a, such as the signal detected by the radio wave sensor 10a, and estimates changes in the state inside the bathroom 2 based on the received output data from the radio wave sensor 10a. For example, the control unit 100 estimates the user's actions or location based on the signal detected by the radio wave sensor 10a. For example, the control unit 100 estimates the user's actions or location within the detection range of the radio wave sensor 10a.

[0069] Furthermore, the control unit 100 is a control device that performs control in the bathroom system 1. For example, the control unit 100 performs control related to water discharge. The control unit 100 also controls the notification by the notification unit 103. The control unit 100 performs various controls based on information detected by the sensor unit 10, microphone 9, etc. For example, the control unit 100 controls the water discharge pattern of the shower device 6 based on information detected by the sensor unit 10. The control unit 100 controls the output of information by the notification unit 103 based on information detected by the sensor unit 10, microphone 9, etc. In this case, the control unit 100 controls at least one water discharge pattern of the overhead shower 6a, hand shower 6b, and spout 6c based on the output data of the radio wave sensor 10a.

[0070] For example, the control unit 100 has a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). For example, the control unit 100 performs various information processing such as state estimation by executing a program (for example, a control program according to this disclosure) stored in the control unit 100 or in the data storage unit 101, etc., using RAM (Random Access Memory) or the like as a working area. The control unit 100 may also have an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0071] As shown in Figure 4, the control unit 100 includes a state estimation unit 110 and a determination unit 111. Note that the internal configuration of the control unit 100 is not limited to the configuration shown in Figure 4; other configurations are also acceptable as long as they perform the desired information processing.

[0072] The state estimation unit 110 functions as an estimation means that performs various estimation processes. For example, the state estimation unit 110 functions as a state estimation means that performs estimation processes related to various states. The state estimation unit 110 functions as a state estimation means that estimates changes in the state of the bathroom based on the output data of the radio wave sensor 10a. For example, the state estimation unit 110 estimates changes in the state of the bathroom 2 based on the signal detected by the radio wave sensor 10a.

[0073] The state estimation unit 110 estimates the state changes in the space inside the bathroom 2 by excluding the radio wave reflection region including the surfaces of panels 2a to 2f. The state estimation unit 110 estimates the state changes in the space inside the bathroom 2 by excluding the water droplet adhesion region on the surfaces of panels 2a to 2f as a radio wave reflection region. The state estimation unit 110 estimates the state changes in the space inside the bathroom 2 by excluding the four corner regions of the bathroom 2.

[0074] The state estimation unit 110 estimates the state changes inside the bathroom 2 based on data excluding received data obtained by reflection from the radio wave reflection region. The state estimation unit 110 estimates the state changes inside the bathroom 2 based on data excluding noise data based on vibration components input to the radio wave sensor 10a. The state estimation unit 110 estimates the state changes inside the bathroom 2 based on data excluding noise data based on objects present inside the bathroom 2.

[0075] The state estimation unit 110 performs a first mode that estimates the user's movement or position within the bathroom 2, and a second mode that estimates the user's breathing while they are in the bathtub 4 installed in the bathroom 2. The state estimation unit 110 also functions as a mode switching means that switches between the first mode and the second mode based on the operation of an operation unit (e.g., an operation panel) installed in the bathroom 2. For example, the state estimation unit 110 switches between the first mode and the second mode in response to the user's operation of the operation unit installed in the bathroom 2.

[0076] The above is merely an example, and the state estimation unit 110 may switch modes in various ways. For example, the state estimation unit 110 can also function as a mode switching means that switches between the first mode and the second mode based on the user's position in the bathroom 2. In this case, the state estimation unit 110 may set the mode to the second mode when the user is located inside the bathtub 4, and set the mode to the first mode when the user is located outside the bathtub 4.

[0077] For example, the state estimation unit 110 uses point cloud information obtained by detection by the radio wave sensor 10a to estimate changes in the state of the bathroom 2. For example, the state estimation unit 110 uses point cloud information obtained by detection by the radio wave sensor 10a to make estimations about moving objects in the bathroom 2. For example, the state estimation unit 110 uses point cloud information obtained by detection by the radio wave sensor 10a to identify moving objects in the bathroom 2.

[0078] For example, the state estimation unit 110 estimates that a moving object within the identified bathroom 2 is a user. For example, the state estimation unit 110 estimates the height of a user located within the bathroom 2 based on the vertical length of the point cloud corresponding to the identified user within the bathroom 2. For example, the state estimation unit 110 estimates the user's actions within the bathroom 2 based on changes in the point cloud obtained by detection by the radio wave sensor 10a.

[0079] For example, the state estimation unit 110 estimates the user's movements within the bathroom 2 (e.g., stepping over to the bathtub 4) based on changes in the shape of the point cloud obtained by detection by the radio wave sensor 10a. For example, the state estimation unit 110 estimates the user's movements within the bathroom 2 based on changes in the position of the point cloud obtained by detection by the radio wave sensor 10a.

[0080] The above-described process is merely an example, and the state estimation unit 110 may estimate changes in the state of the bathroom 2 using various information. For example, the state estimation unit 110 may estimate changes in the state of the bathroom 2 using point cloud information when no user is present in the bathroom 2. For example, the state estimation unit 110 may estimate changes in the state of the bathroom 2 using point cloud information when no user is present in the bathroom 2 and point cloud information when a user is present in the bathroom 2. For example, the state estimation unit 110 may estimate the position and movement of the user in the bathroom 2 based on the difference between point cloud information when no user is present in the bathroom 2 and point cloud information when a user is present in the bathroom 2.

[0081] The state estimation unit 110 estimates that the state change inside the bathroom 2 is abnormal based on the determination result of the determination unit 111. The state estimation unit 110 estimates that the inside of the bathroom 2 is in an abnormal state if the determination unit 111 determines that there is an abnormality in the user located inside the bathroom 2. For example, the state estimation unit 110 estimates that the inside of the bathroom 2 is in an abnormal state if the determination unit 111 determines that there is an abnormality in the user located inside the bathroom 2. For example, the state estimation unit 110 estimates that the inside of the bathroom 2 is in an abnormal state if the determination unit 111 determines that there is an abnormality in the posture of the user located inside the bathroom 2.

[0082] The state estimation unit 110 estimates the movement or posture of the body from the water discharge area of ​​the shower device 6 installed in the bathroom 2 to the bathtub 4 installed in the bathroom 2. The state estimation unit 110 estimates the user's movements within the water discharge area of ​​the shower device 6 installed in the bathroom 2. The state estimation unit 110 estimates the breathing state of the user located in the bathtub 4 installed in the bathroom 2. Note that the above processing is merely an example, and the state estimation unit 110 may use various information to estimate various state changes in the bathroom 2.

[0083] Furthermore, the state estimation unit 110 may also function as an information generation means for generating various types of information that are notified by the notification unit 103. In this case, the state estimation unit 110 generates various types of information using information acquired from other devices or information stored in the data storage unit 101. The state estimation unit 110 generates information using information acquired from the sensor unit 10, etc. The state estimation unit 110 generates information using the estimation results.

[0084] The state estimation unit 110 generates various information, such as screens (image information), to be provided to an external information processing device, using various technologies as appropriate. The state estimation unit 110 generates screens (image information), etc., to be provided to a display device, etc. For example, the state estimation unit 110 generates screens (image information), etc., to be provided to a display device, etc., based on the information stored in the data storage unit 101.

[0085] The state estimation unit 110 may generate screens (image information) etc. to be provided to an external information processing device by any processing method, as long as it is possible to generate such screens (image information). For example, the state estimation unit 110 may generate screens (image information) to be provided to a display device etc. by appropriately using various technologies related to image generation and image processing. For example, the state estimation unit 110 may generate screens (image information) to be provided to a display device etc. by appropriately using various technologies such as Java®.

[0086] The determination unit 111 functions as a determination means for performing various determinations. Based on the output data of the radio wave sensor 10a, the determination unit 111 determines whether or not there are any objects other than the user within the detection range of the radio wave sensor 10a. Based on the output data of the radio wave sensor 10a when the user is not in the bathroom 2, the determination unit 111 determines that there are objects other than the user within the detection range of the radio wave sensor 10a in an area with an intensity above a threshold when the user is not in the bathroom 2.

[0087] For example, the determination unit 111 uses point cloud information obtained by detection by the radio wave sensor 10a to determine whether or not there are any objects other than the user within the detection range of the radio wave sensor 10a. For example, the determination unit 111 may use point cloud information when the user is not located in the bathroom 2 to determine whether or not there are any objects other than the user within the detection range of the radio wave sensor 10a.

[0088] For example, the determination unit 111 may use point cloud information when no user is located in the bathroom 2 and point cloud information when a user is located in the bathroom 2 to determine whether there are any objects other than the user within the detection range of the radio wave sensor 10a. For example, the determination unit 111 may use the difference between point cloud information when no user is located in the bathroom 2 and point cloud information when a user is located in the bathroom 2 to determine whether there are any objects other than the user within the detection range of the radio wave sensor 10a. Note that the above is merely an example, and the determination unit 111 may use various information as appropriate to determine whether there are any objects other than the user within the detection range of the radio wave sensor 10a.

[0089] Furthermore, the determination unit 111 may estimate (determine) any abnormalities concerning the user located inside the bathroom 2. For example, the determination unit 111 may determine whether or not the user located inside the bathroom 2 is in an abnormal state. For example, the determination unit 111 may determine whether or not the user located inside the bathroom 2, as estimated by the state estimation unit 110, is in an abnormal state.

[0090] For example, the determination unit 111 determines that the user's condition is abnormal if the user's position within the bathroom 2 remains stationary for a predetermined period of time. For example, the determination unit 111 determines whether the user's posture within the bathroom 2 is abnormal. For example, the determination unit 111 determines whether the posture of the user within the bathroom 2, as estimated by the condition estimation unit 110, is abnormal. For example, the determination unit 111 determines that the user's condition is abnormal if the user is lying down anywhere other than the bathtub 4 within the bathroom 2. Note that the above are merely examples, and the determination unit 111 may estimate (determine) various conditions as abnormal.

[0091] The control unit 100 is not limited to the above and may have various processing units. For example, the control unit 100 may have an acquisition unit that acquires various information used for processing. For example, the control unit 100 may have a notification control unit that controls the notification unit 103. In this case, the control unit 100 controls the output of information by the notification unit 103, for example, through the notification control unit.

[0092] Furthermore, the control unit 100 may have a personal identification unit that performs personal identification (personal authentication) of users. The personal identification unit functions as an identification means that performs personal identification of users. The personal identification unit may perform personal identification of users using water-related spaces such as the bathroom 2. For example, the personal identification unit may perform personal identification of users using sensor information detected by the sensor unit 10. The personal identification unit performs personal identification (personal authentication) using information such as the physique, posture, and gait of people in the bathroom 2 obtained by detection by the radio wave sensor 10a.

[0093] For example, the personal identification unit may perform personal identification of a user based on point cloud information obtained by detection by the radio wave sensor 10a. For example, the personal identification unit may estimate that a user whose height is estimated based on the point cloud information obtained by detection by the radio wave sensor 10a is a user who used the bathroom / bathroom space at the time the point cloud information was obtained.

[0094] The above is merely an example, and any processing method may be used to identify users as long as it is possible to identify users of the water-related spaces such as bathroom 2. For example, the personal identification unit may identify users based on their actions (such as pressing a switch) on the control unit installed in bathroom 2. Alternatively, the personal identification unit may identify users by voice recognition using voice recognition technology. Furthermore, the personal identification unit may identify users using information on human fingerprints detected from areas touched by people. In this case, the sensor unit 10 may have a fingerprint sensor on a part that people touch, such as a doorknob, on a door 22 in the water-related space. For example, using a person's biometric information can enable smooth personal identification (personal authentication).

[0095] The data storage unit 101 is a storage means (memory device) for storing various types of information. The data storage unit 101 can be implemented, for example, by semiconductor memory elements such as RAM or flash memory, or by memory devices such as hard disks or optical discs. For example, the data storage unit 101 is a computer-readable recording medium that non-temporarily records data used by control programs. The data storage unit 101 is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100.

[0096] The data storage unit 101 transmits the stored information to the control unit 100 in response to a request from the control unit 100. The data storage unit 101 stores the information received from the control unit 100. The data storage unit 101 is also connected to the sensor unit 10 so as to be able to send and receive signals (information) with the sensor unit 10, and stores the information (sensor information) acquired by the detection of the sensor unit 10. The data storage unit 101 stores various types of information used for control in the bathroom system 1.

[0097] The data storage unit 101 stores various information related to the space (water-related space) including the bathroom 2 and the changing room 3. The data storage unit 101 stores the user's behavior history, including information about the user's actions and state in the water-related space. For example, the data storage unit 101 stores usage log data obtained from the analysis of the usage history (log) of the water-related space as the user's behavior history.

[0098] The data storage unit 101 stores information regarding the user's use of bathroom 2. For example, the data storage unit 101 stores the number of times bathroom 2 has been used and the date and time of use. The data storage unit 101 also stores information regarding the user's bathing in bathtub 4. For example, the data storage unit 101 stores the number of times the user has bathed and the date and time of bathing. The data storage unit 101 also stores information regarding the user's use of shower equipment 6. For example, the data storage unit 101 stores the number of times the shower equipment 6 has been used and the date and time of use.

[0099] The data storage unit 101 stores information related to the cleaning of the water-related spaces. For example, the data storage unit 101 stores information indicating the cleaning of bathroom 2. For example, the data storage unit 101 stores the number of times it has been cleaned and the date and time of cleaning. For example, if multiple users are expected to use the space including bathroom 2 and dressing room 3 (water-related space), the data storage unit 101 stores information that identifies each user (e.g., user ID) in association with the user's information.

[0100] Furthermore, the data storage unit 101 stores information about users of the space including the bathroom 2 and the changing room 3 (the wet area space) (also referred to as "user information"). For example, if multiple users of the wet area space are expected, the data storage unit 101 stores user information including information for identifying each user (also referred to as "user identification information"). For example, the data storage unit 101 stores user information including user identification information that indicates the physical characteristics of each user. For example, the data storage unit 101 stores user information including the height, weight, etc., of each user.

[0101] For example, the data storage unit 101 stores a list of users who have been pre-registered as users of bathroom 2. The user list includes a list of users who have been pre-registered as users of bathroom 2 (for example, multiple users such as family members), and information used for personal identification (personal authentication) of each user included in the list. For example, the user list may include information indicating the physical characteristics of each user, such as their height, which is used for personal identification. Also, if personal identification is performed by voice, the user list may include voice information indicating the characteristics of each user's voice.

[0102] The data storage unit 101 is not limited to the above and may store various types of information depending on the purpose. For example, the data storage unit 101 stores information indicating conditions for estimating that an abnormality has occurred in the bathroom 2 (also called "abnormality estimation conditions"). For example, the data storage unit 101 stores information indicating abnormality estimation conditions that include at least one of the following: that a user fell in the bathroom 2, that the user was in a low posture and did not move for a predetermined period of time, that an abnormal sound was detected in the bathroom 2, that an abnormality related to the user's breathing was detected, and that an abnormality related to the user's heart rate was detected.

[0103] For example, the data storage unit 101 stores external data. For example, the data storage unit 101 stores external data (external information) collected by other services, etc. For example, the data storage unit 101 stores information about the user collected by a terminal device (wearable device, etc.) carried by the user as external information. The data storage unit 101 stores information about the user's behavior collected by the user's terminal device as external information.

[0104] The above is merely an example, and the data storage unit 101 stores various types of information used for processing. The data storage unit 101 stores information used for control. The data storage unit 101 stores information used by the control unit 100 to control various components such as the shower device 6. The data storage unit 101 stores various types of information used for estimation processing. The data storage unit 101 stores information used for estimating changes in the state of the bathroom. For example, the data storage unit 101 may store various types of detection information, such as the first detection information described later. For example, the data storage unit 101 may store various types of point cloud information, such as the first point cloud information described later.

[0105] The input unit 102 receives various types of information. For example, the input unit 102 functions as a receiving unit that accepts various types of information. The input unit 102 is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100. The input unit 102 transmits the acquired information to the control unit 100. The input unit 102 may also accept input in response to instructions from the control unit 100.

[0106] The input unit 102 receives various operations from operators such as the administrator of the bathroom system 1 and users of the space including the bathroom 2 and changing room 3 (the wet area). For example, the input unit 102 may be integrated with a display device for displaying information. In this case, the input unit 102 may receive various operations from the operator via buttons provided on the display device. Alternatively, the input unit 102 may receive various operations from the operator via the display surface of the display device (e.g., a liquid crystal display) using a touch panel function.

[0107] For example, the input unit 102 may have a display device that displays information and an operating device that receives operations from an operator such as a user, and may function as an operating unit such as an operation panel. For example, the input unit 102 may be placed in any location such as the living room of a residence where a water-related space or bathroom 2 is provided. In this case, the input unit 102 may be placed in a residence where bathroom 2 is installed, and may also function as a remote control device that displays information related to bathroom 2 and receives operations related to bathroom 2. For example, the remote control device may have the functions of an input unit 102 and a notification unit 103, and may perform processing such as receiving operations from an operator, displaying information, and outputting voice.

[0108] Furthermore, for example, the input unit 102 may be provided in a terminal device (display device, etc.) owned by the operator. The terminal device is a device used by the operator. The terminal device can be implemented as, for example, a smartphone, a mobile phone, a PDA (Personal Digital Assistant), a tablet device, or a notebook PC (Personal Computer). For example, the terminal device may be a smartphone used by family members living in a house where the bathroom 2 is installed. For example, the terminal device may function as an output device that outputs information broadcast (transmitted) from the notification unit 103.

[0109] The notification unit 103 functions as a notification means for notifying various types of information. The notification unit 103 is connected to the control unit 100 so that it can send and receive signals (information) with the control unit 100. The notification unit 103 performs various notifications in response to instructions from the control unit 100. For example, the notification unit 103 notifies information to a predetermined target person. The notification unit 103 notifies the predetermined target person by displaying the information, communicating the information, outputting the information as sound, etc.

[0110] For example, the notification unit 103 has a configuration that includes communication functions such as a communication circuit and a communication device, and transmits information to be notified to a predetermined target person to a device (information processing device) corresponding to that predetermined target person. For example, the notification unit 103 is connected to a predetermined network such as the Internet by wire or wireless, and transmits and receives information with an external information processing device. For example, the notification unit 103 transmits and receives information with other devices that have communication functions, such as a remote control device or a terminal device, via a predetermined network such as the Internet.

[0111] The notification unit 103 transmits information to an external information processing device. For example, the notification unit 103 transmits various information to a remote control device, terminal device, etc. The notification unit 103 notifies a predetermined target person by transmitting the information estimated by the control unit 100 to the remote control device, terminal device, etc. The notification unit 103 notifies a predetermined target person by transmitting the information generated by the control unit 100 to the remote control device, terminal device, etc.

[0112] The above is merely an example, and the notification unit 103 may take any form and have any configuration as long as it can provide the desired notification. For example, if the notification unit 103 displays information to a predetermined target person, it may have a display function. In this case, the notification unit 103 may be a display device. Alternatively, the notification unit 103 may be integrated with a display device that has the function of displaying information, such as a remote control device or terminal device. Furthermore, if the notification unit 103 outputs information as sound (sound output) to a predetermined target person, it may have a sound output function. In this case, the notification unit 103 may be a sound output device. Additionally, the notification unit 103 may be integrated with a device that has the function of outputting information as sound, such as a remote control device or terminal device.

[0113] Lighting 104 has a lighting device that illuminates a predetermined space. Lighting 104 has a lighting device that illuminates the bathroom 2. Lighting 104 has a lighting device that illuminates the dressing room 3. Lighting 104 is connected to the control unit 100 so that it can send and receive signals (information) with the control unit 100. Lighting 104 may dim the lighting device in response to instructions from the control unit 100. Lighting 104 may turn on the lighting device in response to instructions from the control unit 100. Lighting 104 may turn off the lighting device in response to instructions from the control unit 100.

[0114] For example, the lighting unit 104 receives control instruction information from the control unit 100 and controls the lighting device based on the received control instruction information. The lighting unit 104 performs dimming control of the lighting device based on the control instruction information. For example, the lighting unit 104 turns the lighting device on or off based on the control instruction information.

[0115] The water temperature control unit 105a functions as a water temperature control means that controls the temperature of the hot water (water) supplied to the shower device 6. The water temperature control unit 105a is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100. The water temperature control unit 105a controls the temperature of the hot water (water) supplied to the shower device 6 in accordance with instructions from the control unit 100. For example, the water temperature control unit 105a has a valve (temperature control valve) for adjusting the temperature of the hot water (water) supplied to the shower device 6. For example, the flow path (water supply path) controlled by the water temperature control unit 105a is connected to the flow path (water supply path) controlled by the water volume control unit 105b.

[0116] The water volume control unit 105b functions as a water volume control means that controls the amount of hot water (or cold water) supplied to the shower device 6. The water volume control unit 105b is connected to the control unit 100 so that it can send and receive signals (information) with the control unit 100. The water volume control unit 105b controls the water volume in accordance with instructions from the control unit 100. For example, the water volume control unit 105b has a valve (flow rate control valve) for adjusting the flow rate of hot water (or cold water) supplied to the shower device 6. For example, the flow path (water supply path) controlled by the water volume control unit 105b is connected to the flow path (water supply path) controlled by the discharge / stop control units 60a to 60c.

[0117] The bathtub water temperature control unit 106 functions as a water temperature control means that controls the temperature of the hot water (water) supplied to the bathtub 4. The bathtub water temperature control unit 106 is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100. The bathtub water temperature control unit 106 controls the temperature of the hot water (water) supplied to the bathtub 4 in accordance with instructions from the control unit 100. For example, the bathtub water temperature control unit 106 has a valve (temperature control valve) for adjusting the temperature of the hot water (water) supplied to the bathtub 4.

[0118] The shoulder / waist bath control unit 107 functions as a water temperature control means that controls the temperature of the hot water (water) supplied to the shoulder bath outlet and the waist bath outlet provided in the bathtub 4. The shoulder / waist bath control unit 107 is connected to the control unit 100 so that it can send and receive signals (information) with the control unit 100. The shoulder / waist bath control unit 107 controls the temperature of the hot water (water) supplied to at least one of the shoulder bath outlet and the waist bath outlet in response to instructions from the control unit 100. For example, the shoulder / waist bath control unit 107 has a valve (temperature control valve) for adjusting the temperature of the hot water (water) supplied to the shoulder bath outlet and the waist bath outlet.

[0119] The air conditioner 108 has an air conditioning device that adjusts the air quality in a predetermined space. The air conditioner 108 has an air conditioning device that adjusts the air quality in the bathroom 2. The air conditioner 108 has an air conditioning device that adjusts the air quality in the dressing room 3. For example, the air conditioning device has a function to adjust at least one of temperature, humidity, and flow rate (airflow). The air conditioner 108 is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100. The air conditioner 108 may perform drive control of the air conditioning device in response to instructions from the control unit 100.

[0120] For example, the air conditioner 108 receives control instruction information from the control unit 100 and controls the air conditioner based on the received control instruction information. The air conditioner 108 performs drive control of the air conditioner based on the control instruction information. For example, the air conditioner 108 starts or stops the air conditioner based on the control instruction information. The air conditioner 108 may have various functions as long as they are functions that adjust the air condition of a predetermined space. For example, the air conditioner 108 may have a function (drying function) for drying laundry in the bathroom 2, so-called bathroom drying.

[0121] The ventilation fan 109 has a ventilation device that ventilates a predetermined space. The ventilation fan 109 has a ventilation device that ventilates the bathroom 2. The ventilation fan 109 has a ventilation device that ventilates the dressing room 3. The ventilation fan 109 is connected to the control unit 100 so that it can send and receive signals (information) to and from the control unit 100. The ventilation fan 109 may perform drive control of the ventilation device in response to instructions from the control unit 100.

[0122] For example, the ventilation fan 109 receives control instruction information from the control unit 100 and controls the ventilation system based on the received control instruction information. The ventilation fan 109 performs dimming control of the ventilation system based on the control instruction information. For example, the ventilation fan 109 starts or stops the ventilation system based on the control instruction information.

[0123] The above is merely an example, and the bathroom system 1 can employ any device configuration as long as it can achieve the desired processing. In the bathroom system 1, the air conditioner 108 may have all the functions to adjust the air condition of a predetermined space, including ventilation. In this case, the air conditioner 108 and the ventilation fan 109 may be integrated. For example, if the air conditioner 108 has a ventilation function, the bathroom system 1 does not need to have a ventilation fan 109.

[0124] Furthermore, for example, the bathroom system 1 may have various sensors for collecting information about the space (wet area) including the bathroom 2 and the dressing room 3. For example, the sensor unit 10 of the bathroom system 1 may have a door sensor that detects the opening and closing of the door to the dressing room 3, as an entry detection sensor for collecting information on users entering and leaving the dressing room 3. For example, the bathroom system 1 functions as a bathroom management system that provides services related to the management of the bathroom with the above configuration. Also, for example, the bathroom system 1 functions as a bathroom monitoring system that provides services related to the monitoring of the bathroom with the above configuration.

[0125] <1-3. Examples of processing using radio wave sensors> From here, we will briefly explain an example of processing using a radio wave sensor. The radio wave sensor 10a, which is a radio wave radar as described above, emits radio waves into the bathroom 2 and receives the reflected radio waves. In this way, by receiving the radio waves that have been reflected back by the radio wave sensor 10a, the bathroom system 1 can detect the coordinates of the point from which the radio waves were reflected, the intensity of the reflected radio waves, and the velocity of the radio waves in the direction of propagation (Doppler velocity) at the point from which the radio waves were reflected. Therefore, the bathroom system 1 can obtain coordinate information of the point cloud that reflected the radio waves, information on the intensity of the reflected waves from each point, and information on the movement velocity of each point from the detection signal from the radio wave sensor 10a.

[0126] For example, when a user is located (entered) the bathroom 2 (also referred to as "user entry state"), radio waves reflected by an object (reflector) including the user are detected by the radio wave sensor 10a, and point cloud information representing the object (reflector) including the user is detected.

[0127] In the configuration shown in Figures 1 and 2, when user U is located inside bathroom 2 (user entry state), radio waves reflected by objects such as the components related to panels 2a to 2f, in addition to user U, are detected by the radio wave sensor 10a. As a result, when user U is located inside bathroom 2, the bathroom system 1 acquires point cloud information representing users U as well as objects such as the components related to panels 2a to 2f.

[0128] On the other hand, for example, when no user is located (entered) in bathroom 2 (also called "user absent state"), radio waves reflected by objects (reflectors) that do not include the user are detected by the radio wave sensor 10a, and point cloud information representing objects (reflectors) that do not include the user, i.e., objects other than the user, is detected. In this way, when no user is located in bathroom 2 (user absent state), point cloud information representing objects that are not necessary for estimating the user's position or movement is detected.

[0129] In the configuration shown in Figures 1 and 2, when no user is present in the bathroom 2 (user absent state), radio waves reflected by objects other than the user, such as the components related to panels 2a to 2f, are detected by the radio wave sensor 10a. As a result, when no user is present in the bathroom 2, the bathroom system 1 can acquire point cloud information representing objects other than the user, such as the components related to panels 2a to 2f.

[0130] Here, the radio waves reflected from the configuration of panels 2a to 2f of bathroom 2 may affect the estimation of changes in the state of the space within bathroom 2, such as the estimation of the user's position and movement within bathroom 2. Panels 2a to 2f of bathroom 2 are made of panel-like materials such as PVC (polyvinyl chloride), resin, or hard plastic. In addition, for example, a metal plate may be provided on the back surface of panels 2a to 2f. In this case, if a metal plate is placed on the back surface of panels 2a to 2f, the metal plate constitutes a radio wave reflection area, and the intensity of the radio waves reflected from the configuration of panels 2a to 2f of bathroom 2 increases, which may affect the estimation of changes in the state of the space within bathroom 2.

[0131] Furthermore, even if no metal plates are placed on the back surfaces of panels 2a to 2f, water droplets may adhere to the surfaces of panels 2a to 2f due to the user's use or cleaning of the shower equipment 6. In such cases, the areas of the surface of panels 2a to 2f where water droplets are present (water droplet-adhered areas) constitute radio wave reflection areas, and the intensity of radio waves reflected from the configuration of panels 2a to 2f in the bathroom 2 increases, which may affect the estimation of changes in the state of the space within the bathroom 2.

[0132] Thus, if there are radio wave reflection regions where the intensity of reflected radio waves can be strong, it may be difficult to appropriately estimate changes in the state of the space within the bathroom 2. Therefore, the bathroom system 1 estimates changes in the state of the space within the bathroom 2 by excluding such radio wave reflection regions. For example, the bathroom system 1 excludes wall surfaces such as panels 2a to 2f from the detection range because the reflection intensity is high there. Note that exclusion is not limited to excluding from the data when the bathroom system 1 performs estimation processing, but may be in any manner as long as the desired processing can be performed, for example, by excluding from the output data output by the radio wave sensor 10a.

[0133] For example, the bathroom system 1 acquires detection information (also called "first detection information") from reflections from objects other than the user (reflective objects), such as radio wave reflection areas, when no user is present. For example, by performing detection when no user is present, the bathroom system 1 acquires point cloud information (also called "first point cloud information") detected from reflections from objects other than the user (reflective objects), such as radio wave reflection areas, as first detection information.

[0134] The bathroom system 1 then acquires detection information (also called "second detection information") based on the reflection of an object (reflective object) including the user when the user is inside the bathroom. For example, by performing detection when the user is inside the bathroom, the bathroom system 1 acquires point cloud information (also called "second point cloud information") detected by the reflection from an object (reflective object) including the user as second detection information.

[0135] The bathroom system 1 then uses the first detection information and the second detection information to generate detection information (also called "third detection information") from which the influence of the radio wave reflection region has been removed. For example, the bathroom system 1 generates third detection information (also called "third point cloud information") from which the influence of the radio wave reflection region has been removed, based on a comparison between the second point cloud information (for example, point cloud information as shown in Figure 6) and the first point cloud information. For example, the bathroom system 1 generates third point cloud information by deriving the difference between the second point cloud information and the first point cloud information.

[0136] The bathroom system 1 then uses the third detection information to estimate changes in the space within the bathroom 2. For example, the bathroom system 1 uses the third point cloud information to estimate changes in the space within the bathroom 2. The bathroom system 1 may further remove information that could be noise (such as dynamic noise) from the third detection information. For example, the bathroom system 1 may generate detection information (also called "fourth detection information") from which noise has been further removed from the third detection information. In this case, the bathroom system 1 uses the fourth detection information to estimate changes in the space within the bathroom 2. Dynamic noise may include, for example, radio waves reflected from objects that are not stationary due to vibration (such as a washing machine).

[0137] For example, the bathroom system 1 may further process the third point cloud information to remove dynamic noise and other unwanted noise. As a result, the bathroom system 1 generates point cloud information (also called "fourth point cloud information") from which various influences (noise) other than the influence of the radio wave reflection region have been removed, as fourth detection information. In this case, the bathroom system 1 uses the fourth point cloud information (for example, the point cloud information shown in Figure 9) to estimate the state changes in the space within the bathroom 2.

[0138] <1-4. Processing Examples> From here, based on the above-mentioned premise, an example of the processing performed by the bathroom system 1 will be explained using Figure 5. Figure 5 is a flowchart showing an example of the procedure for processing performed by the bathroom system. For example, Figure 5 is a flowchart showing an example of the state estimation processing performed by the bathroom system 1 according to the embodiment. Although the bathroom system 1 is described as the processing unit, each processing may be performed by any of the devices, such as the sensor unit 10 (radio wave sensor 10a, etc.) or the control unit 100, depending on the device configuration included in the bathroom system 1.

[0139] Bathroom system 1 emits radar and derives the distance to each reflection point, azimuth angle, elevation angle, radio wave intensity, and Doppler velocity from the received signal (step S101). For example, bathroom system 1 emits radar from radio wave sensor 10a, and based on the received signal from radio wave sensor 10a, the control unit 100 derives the distance to each reflection point, azimuth angle, elevation angle, radio wave intensity, and Doppler velocity to acquire second detection information.

[0140] For example, the bathroom system 1 derives the distance, azimuth angle, elevation angle, radio wave intensity, and Doppler velocity to each reflection point based on detection when a user is inside the bathroom, and acquires point cloud information (second point cloud information) from the object (reflector) including the user as second detection information. For example, the bathroom system 1 acquires point cloud information (second point cloud information) including the user, as shown in Figure 6. Figure 6 is a diagram showing an example of a point cloud detected by the radio wave sensor of the bathroom system. Figure 6 shows an example of a point cloud (point cloud data) when a user is located inside the bathroom 2.

[0141] Bathroom system 1 excludes walls and corners with high reflectivity from its detection range when there are no moving objects (step S102). For example, bathroom system 1 excludes walls and corners with high reflectivity from its detection range based on detection in a user-absent state where no user is located in bathroom 2.

[0142] For example, the bathroom system 1 acquires first detection information obtained by detection in a user-absent state where the user is not located inside the bathroom 2. For example, the bathroom system 1 acquires first point cloud information as first detection information from the data storage unit 101. For example, the bathroom system 1 may perform detection in a user-absent state before processing in step S101, and based on the detection in the user-absent state, derive the distance to each reflection point, azimuth angle, elevation angle, radio wave intensity, and Doppler velocity, and acquire point cloud information (first point cloud information) from objects (reflectors) that do not include the user.

[0143] For example, the bathroom system 1 uses the second detection information and the first detection information to generate third detection information by removing the influence (noise) of reflections from walls and corners with high reflectivity from the second detection information. For example, the bathroom system 1 uses the second point cloud information and the first point cloud information to generate point cloud information (third point cloud information) by removing point clouds based on reflections from walls and corners with high reflectivity from the second point cloud information. As a result, the bathroom system 1 excludes radio wave reflection areas such as walls and corners with high reflectivity other than those of the user from the detection range.

[0144] The bathroom system 1 then executes the processes of steps S103 and S104. Steps S103 and S104 are merely step numbers for the purpose of explaining the process and may be performed in any order. For example, step S104 may be performed before step S103.

[0145] Bathroom system 1 removes low-intensity noise from reflection points based on radio wave intensity (step S103). For example, bathroom system 1 automatically adjusts the threshold through CFAR (Constant False Alarm Rate) detection processing and removes information from reflection points with intensity below that threshold as noise.

[0146] Here, the processing overview of step S103 will be explained using Figure 7. Figure 7 is a diagram showing an example of the intensity distribution of radio waves received by the radio wave sensor of the bathroom system. Figure 7 is a schematic graph showing the intensity of radio waves reflected from each point on the horizontal axis and the frequency (number of points) of the points showing that intensity on the vertical axis. For example, if there are no metal plates placed on the back surfaces of panels 2a to 2f, or if there are no water droplet adhesion areas on the surfaces of panels 2a to 2f, the intensity of the reflected waves irradiated from the radio wave sensor 10a and reflected by panels 2a to 2f will be low. In such cases, the influence of reflection (noise) from panels 2a to 2f may be included in the third point group information.

[0147] Furthermore, since much of the radio waves emitted from the radio wave sensor 10a are reflected by panels 2a to 2f, the frequency (number of points) of such radio waves increases. As a result, the graph in Figure 7 shows one peak in the region where the intensity of the reflected waves is low. On the other hand, the reflected waves reflected by users entering the bathroom 2 are relatively high in intensity, so the graph in Figure 7 shows another peak in the region where the intensity of the reflected waves is high, due to the reflected waves reflected by the users. Of the received reflected waves, radio waves below a predetermined intensity threshold (corresponding to the threshold in Figure 7) are determined to be noise and are removed from the data (point cloud information, etc.) used for processing. In this way, the bathroom system 1 can appropriately remove noise, even if the reflected waves have low intensity and were not excluded in the processing of step S102.

[0148] Furthermore, a predetermined intensity threshold (corresponding to the threshold in Figure 7) for determining whether the received radio waves are noise can be changed based on the detected reflected waves. In bathroom system 1, the predetermined intensity threshold is determined using the CFAR method. Generally, setting the predetermined intensity threshold lower increases the probability of detecting the target being detected, but also increases the probability of false alarms (detection). On the other hand, setting the predetermined intensity threshold higher can lower the probability of false alarms, but it decreases the probability of detecting the target. Thus, the probability of detecting the target and the probability of false alarms change depending on the setting of the predetermined intensity threshold, resulting in a trade-off relationship. The CFAR method is generally known as a method for setting a predetermined intensity threshold based on the intensity distribution of the received reflected waves so that the probability of false alarms remains constant.

[0149] Furthermore, the bathroom system 1 removes static noise from the reflection point (step S104). For example, the bathroom system 1 removes noise with a low Doppler velocity from the reflection point.

[0150] The processing overview for this point will be explained using Figure 8. Figure 8 is a diagram showing an example of the distribution of Doppler velocity of radio waves received by the radio wave sensor of the bathroom system. Figure 8 is a schematic graph showing the Doppler velocity of each point that reflects the radio wave on the horizontal axis and the frequency (number of points) of the points showing that velocity on the vertical axis. Here, the Doppler velocity obtained from the reflected wave irradiated from the radio wave sensor 10a and reflected by stationary objects such as panels 2a to 2f is almost zero.

[0151] Furthermore, since much of the radio waves emitted from the radio wave sensor 10a are reflected by panels 2a to 2f, the frequency (number of points) of such radio waves increases. As a result, the graph in Figure 8 shows a single peak near zero Doppler velocity. On the other hand, since users who enter the bathroom 2 are moving, the reflected waves reflected by the users are distributed from the region where the Doppler velocity is negative (towards the radio wave sensor 10a) to the region where the Doppler velocity is positive (away from the radio wave sensor 10a). Of the received reflected waves, radio waves whose absolute value of Doppler velocity is below a predetermined velocity threshold (for example, corresponding to the range between the dashed lines in Figure 8) are determined to be noise and are removed from the data (point cloud information, etc.) used for processing.

[0152] Bathroom system 1 acquires point cloud information representing users in bathroom 2 by multiplying the information on the intensity of radio waves reflected from each point and the information on the velocity of each point obtained in steps S103 and S104 (step S105). For example, based on the information on the intensity of radio waves reflected from each point and the information on the velocity of each point, bathroom system 1 generates point cloud information representing users (fourth point cloud information) that removes various influences other than the radio wave reflection region by removing data that has been determined to be noise.

[0153] This allows the bathroom system 1 to detect users more accurately. Figure 9 shows an example of users detected as a point cloud in this way. Figure 9 shows an example of a point cloud detected by the radio wave sensor of the bathroom system.

[0154] Bathroom system 1 estimates the person's position from the noise-removed data (step S106). For example, as shown in Figure 9, bathroom system 1 estimates the user's position from point cloud information corresponding to the user (fourth point cloud information) from which various influences other than the radio wave reflection region have been removed. For example, bathroom system 1 estimates the user's position based on the relationship between the space of bathroom 2 and its coordinates. Bathroom system 1 obtains information on the user's position within bathroom 2 by calculating the centroid position of the point cloud reflecting radio waves.

[0155] Note that the processing flow shown in Figure 5 is merely an example, and the processing flow executed by the bathroom system 1 is not limited to the processing flow shown in Figure 5, but can be any processing flow as long as the desired processing can be executed. For example, the bathroom system 1 does not have to execute at least one of steps S103 and S104. For example, the bathroom system 1 does not have to execute step S104.

[0156] Furthermore, the bathroom system 1 may estimate various information using fourth detection information, such as point cloud information (fourth point cloud information) that indicates the user. Also, the bathroom system 1 may estimate the user's height, posture, etc., based on the height of the highest point in the point cloud. The bathroom system 1 may acquire information such as the user's height, posture, etc., based on the height of the highest point in the point cloud.

[0157] Furthermore, the bathroom system 1 may estimate the movement of a person's body or their posture when moving from the water discharge area of ​​the shower device 6 installed in the bathroom 2 to the bathtub 4 installed in the bathroom 2. For example, the bathroom system 1 may estimate information about the user's movement based on changes in fourth detection information, such as point cloud information (fourth point cloud information) indicating the user. For example, the bathroom system 1 may estimate at least one of the user's body movement or posture when moving based on changes in fourth detection information, such as point cloud information (fourth point cloud information) indicating the user, over time.

[0158] For example, the bathroom system 1 may estimate the user's physical movement from the water discharge area of ​​the shower device 6 to the bathtub 4 based on the time-series change from the 4th point cloud information at the first time when the user is located in the water discharge area of ​​the shower device 6 to the 4th point cloud information at the second time when the user is located in the bathtub 4. For example, the bathroom system 1 may estimate the user's posture as they move from the water discharge area of ​​the shower device 6 to the bathtub 4 based on the time-series change from the 4th point cloud information at the first time when the user is located in the water discharge area of ​​the shower device 6 to the 4th point cloud information at the second time when the user is located in the bathtub 4. Note that the above is merely an example, and the bathroom system 1 may use various information to estimate physical movement or posture as they move from the water discharge area of ​​the shower device 6 installed in the bathroom 2 to the bathtub 4 installed in the bathroom 2.

[0159] Furthermore, the bathroom system 1 may estimate the user's actions within the water discharge area of ​​the shower device 6 installed in the bathroom 2. For example, the bathroom system 1 may estimate information regarding the user's actions based on changes in fourth detection information, such as point cloud information (fourth point cloud information) indicating the user. For example, the bathroom system 1 may estimate the user's actions based on changes in fourth detection information, such as point cloud information (fourth point cloud information) indicating the user, over time.

[0160] For example, the bathroom system 1 may estimate the user's actions within the water discharge area of ​​the shower device 6 based on the time-series change from the 4th point cloud information at the first time the user is located in the water discharge area of ​​the shower device 6 to the 4th point cloud information at the second time the user is located in the water discharge area of ​​the shower device 6. However, the above is merely an example, and the bathroom system 1 may use various information to estimate the user's actions within the water discharge area of ​​the shower device 6 installed in the bathroom 2. For example, if multiple radio wave sensors 10a are provided, the bathroom system 1 may use information obtained from the detection of radio wave sensors 10a placed near the water discharge area of ​​the shower device 6 to estimate the user's actions within the water discharge area of ​​the shower device 6.

[0161] Furthermore, the bathroom system 1 may estimate the breathing state of a user located in the bathtub 4 installed in the bathroom 2. For example, the bathroom system 1 may estimate information regarding the user's breathing based on changes in fourth detection information, such as point cloud information (fourth point cloud information) indicating the user. For example, the bathroom system 1 may estimate the user's breathing state based on changes in fourth detection information, such as point cloud information (fourth point cloud information) indicating the user, over time.

[0162] For example, the bathroom system 1 may estimate the user's breathing state in the bathtub 4 based on the time-series change from the 4th point cloud information at the first hour when the user is in the bathtub 4 to the 4th point cloud information at the second hour when the user is in the bathtub 4. However, the above is merely an example, and the bathroom system 1 may use various information to estimate the breathing state of a user located in the bathtub 4 installed in the bathroom 2. For example, if multiple radio wave sensors 10a are provided, the bathroom system 1 may use information obtained from the detection of radio wave sensors 10a (for example, radio wave sensors 10a2 and 10a3 in Figure 12) located near the end portion 43 which functions as a pillow to estimate the breathing state of a user located in the bathtub 4.

[0163] <1-5. Examples of antenna placement for radio wave sensors> Here, we will describe examples of antenna placement for radio wave sensors. For example, the placement shown in Figures 10 and 11 may be used. Figures 10 and 11 are diagrams showing examples of antenna placement for radio wave sensors. Specifically, Figure 10 shows an example of the orientation of the antenna for a radio wave sensor when viewed from above in the bathroom. Figure 11 shows an example of the orientation of the antenna for a radio wave sensor when viewed from the side in the bathroom. Note that explanations of points similar to those described above will be omitted as appropriate.

[0164] Figures 10 and 11 schematically show the configuration of the radio wave sensor 10a. In addition to the housing 11 and antenna 12, the radio wave sensor 10a also has various other components necessary to function as a radio wave radar.

[0165] As shown in Figures 10 and 11, the radio wave sensor 10a is positioned so that the antenna surface 121 of the antenna 12, which is located inside the housing 11, intersects with the surface of the panel 2a on which the radio wave sensor 10a is installed. In this way, the plane direction of the antenna surface 121 of the antenna 12 of the radio wave sensor 10a intersects with the surface of the panel on which the radio wave sensor 10a is installed. The radio wave sensor 10a is positioned so that the antenna surface 121 of the antenna 12, which is located inside the housing 11, faces the center of the bathroom 2. In this way, the antenna surface 121 of the antenna 12 of the radio wave sensor 10a is positioned to face the center of the bathroom 2.

[0166] The region AR11 shown in Figures 10 and 11 shows an example of the range in which the radio wave sensor 10a receives reflected waves. The radio wave sensor 10a emits radio waves at a predetermined angle and receives reflections from panels 2a to 2f of the bathroom 2. As shown in Figures 10 and 11, by positioning the antenna surface 121 of the antenna 12 so that it faces the center of the bathroom 2, depending on the placement position of the radio wave sensor 10a, it becomes unnecessary to place the radio wave sensor 10a in the center of the bathroom 2, thereby improving the flexibility of the placement of the radio wave sensor 10a.

[0167] <1-6. Other examples of bathroom system configurations> The configuration and processing described above are merely examples of bathroom system configurations and processing; bathroom systems can have various configurations and perform various processes. Several examples are provided below.

[0168] As described above, the arrangement of the radio wave sensors 10a shown in Figure 3, that is, the arrangement of the sensor devices of the sensor unit 10, is just one example, and the bathroom system may have the sensor devices of the sensor unit 10 placed at any location. The sensor unit 10 may have multiple radio wave sensors 10a.

[0169] For example, the sensor unit 10 may have a plurality of radio wave sensors 10a, including a first radio wave sensor 10a that detects a first space including a bathtub 4 installed in the bathroom 2, and a second radio wave sensor 10a that detects a second space including the water discharge area of ​​a shower device 6 installed in the bathroom 2. In this case, the output data of the sensor unit 10 includes first output data from the first radio wave sensor 10a and second output data from the second radio wave sensor 10a.

[0170] Furthermore, the bathroom system may have three or more radio wave sensors 10a. An example of this case will be explained using Figure 12. Figure 12 is a diagram showing another example of the configuration of the bathroom system. The bathroom system 1A in Figure 12 has radio wave sensors 10a1, 10a2, and 10a3. When describing radio wave sensors 10a1, 10a2, and 10a3 without making a particular distinction, radio wave sensor 10a will be referred to. Thus, the bathroom system 1A has three radio wave sensors 10a, each positioned at a different location.

[0171] Each of the radio wave sensors 10a1, 10a2, and 10a3 is positioned higher than the upper end of the bathtub 4 installed in the bathroom 2. In Figure 12, radio wave sensor 10a1 is positioned in the same location as radio wave sensor 10a in Figure 3. Radio wave sensor 10a2 is positioned along panel 2b near the end 43 that functions as the pillow of the bathtub 4. Radio wave sensor 10a2 is also positioned along panel 2c near the pillow and the end 43 that functions as the pillow of the bathtub 4. By positioning radio wave sensor 10a near the end 43 that functions as the pillow of the bathtub 4 in this way, the accuracy of detecting the breathing of a user while they are in the bathtub 4 and bathing can be improved.

[0172] <1-7. Other processing examples> Bathroom system 1 may perform various processes, not limited to those described above. For example, bathroom system 1 may provide new value by performing various services using various information, such as the information obtained through the processes described above. The processes performed by bathroom system 1 will be described below in this regard. Points that are the same as those described above will be omitted as appropriate.

[0173] <1-7-1. Example of evaluation of bathroom use> For example, bathroom system 1 may evaluate bathroom use based on the user's behavior in bathroom 2. Bathroom system 1 performs an evaluation process that evaluates the user's behavior in bathroom 2 based on predetermined behavioral rules regarding the use of bathroom 2.

[0174] For example, the bathroom system 1 may accept rule settings from users in the manner shown in Figure 13. Figure 13 is a diagram showing an example of rules. In Figure 13, an example is given of setting rules that apply to multiple users who share bathroom 2, for example, the entire family living in the residence where bathroom 2 is provided (including user X, etc., described later).

[0175] For example, Figure 13 shows Content CT11, which is an example of a rule setting screen for setting common rules for the entire family, i.e., for multiple users, as "Our Household Rules." Content CT11 contains information on multiple individual rules that can be set as rules. The multiple individual rules that can be set as rules include various individual rules as shown in Content CT11 of Figure 13.

[0176] For example, individual rules include rules regarding entry times, etc. Individual rules also include rules regarding the use of the overhead shower 6a(OH), such as start time, end time, flow rate, temperature, etc. Furthermore, individual rules include rules regarding the use of the hand shower 6b(HS), such as start time, end time, flow rate, temperature, etc.

[0177] Furthermore, the individual rules include rules regarding the use of spout 6c (faucet), such as rules regarding the start time, end time, flow rate, temperature, etc. The individual rules also include rules regarding the use of bathtub 4, such as the start time, end time, etc. Finally, the individual rules include rules regarding the time of exit from water-related spaces such as bathroom 2.

[0178] Furthermore, the individual rules include rules regarding the open / closed state of the door 22 of the bathtub 4. Furthermore, the individual rules include rules regarding the posture of the user inside the bathtub 4, such as whether or not the user's head is sticking out. Furthermore, the individual rules include rules regarding the posture of the user in the washing area, such as whether or not the user is lying down. Furthermore, the individual rules include rules regarding the turning on and off of the lights 104. Furthermore, the individual rules include rules regarding the operation of the ventilation fan 109.

[0179] Specifically, individual rules can be set as shown in Figure 13. For example, an individual rule can be set that requires closing the door (e.g., door 22). Another individual rule can be set that requires washing one's body before entering the bathtub (e.g., bathtub 4). Yet another individual rule can be set that requires keeping the time spent in bathroom 2 from the time one enters until one leaves to 20 minutes or less.

[0180] Additionally, individual rules can be set to ensure that the time spent soaking in the bathtub is between 3 and 10 minutes. Furthermore, individual rules can be set to ensure that the user does not submerge themselves in the bathtub for more than 1 minute. Also, individual rules can be set to ensure that the user immerses themselves up to their shoulders in the bathtub. Finally, individual rules can be set to ensure that the user rinses off with a shower (e.g., shower device 6) after soaking in the bathtub.

[0181] Additionally, individual rules can be set to ensure that the bath lid is closed before leaving bathroom 2. Furthermore, individual rules can be set to ensure that one dries one's body inside bathroom 2 before leaving. Also, individual rules can be set to ensure that one leaves bathroom 2 by 8 PM. Furthermore, individual rules can be set to ensure that one does not lie down in the washing area of ​​bathroom 2. Finally, individual rules can be set to ensure that the total amount of water used during bathing is 20 liters or less.

[0182] Additionally, individual rules can be set to ensure that the lights (e.g., light 104) are turned on while bathing. Individual rules can also be set to ensure that the water temperature is not set above 45°C. Furthermore, individual rules can be set to ensure that the shower is turned off when leaving bathroom 2. Additionally, individual rules can be set to ensure that ventilation is performed after leaving bathroom 2 (e.g., starting the ventilation fan 109). Finally, individual rules can be set to ensure that the lights are turned off after leaving bathroom 2.

[0183] The rules described above are merely examples of individual rules, and individual rules may include a variety of rules (conditions) as long as they relate to the evaluation of user behavior in bathroom 2. Furthermore, the numerical values ​​shown in Figure 13 for each individual rule are examples only, and any desired numerical values ​​can be set for individual rules that include them.

[0184] In Figure 13, the remote control device displays content CT11 and accepts rule settings from the person setting the rules (also called the "setting person"). Note that content CT11 may be displayed by any device, not just the remote control device. For example, content CT11 may be displayed on a terminal device used by a designated person (setting person, etc.) within the family, such as a parent (father or mother). In this case, the designated person using the terminal device (setting person, etc.) may set the rules using their own terminal device. For example, the setting person, who is the parent of user X, sets the rules using their own terminal device.

[0185] For example, the bathroom system 1 accepts the setting of which individual rule to use by the user switching the ON / OFF status of toggle switches located for each individual rule. In other words, the person setting the rules (the setter) can arbitrarily select which individual rule to use. Note that the rule setting shown in Figure 13 is just one example, and the bathroom system 1 may set rules in various ways.

[0186] For example, the bathroom system 1 may use pre-set rules for each user. Alternatively, the rules may be set individually for each user. For example, if rules are set for each user, the content CT11 shown in Figure 13 may include the user's designation.

[0187] For example, the control unit 100A may generate content CT11. In this case, the control unit 100A transmits the generated content CT11 to a device used for configuring remote control devices, terminal devices, etc. (also called a "configuration reception device") via the notification unit 130. Note that content CT11 may be generated by any device other than the control unit 100A. For example, content CT11 may be generated by the configuration reception device. For example, the configuration reception device may have an application related to rule setting installed. In this case, the configuration reception device executes various processes related to rule setting using the application related to rule setting.

[0188] Then, the remote control device, terminal device, or other setting reception device displays content CT11 and accepts the rule settings from the user. The setting reception device transmits information indicating the accepted rule settings (also called "setting rule information") to the control unit 100A. Based on the received setting rule information, the control unit 100A registers (stores) the rules set for the user in the data storage unit 101, associating them with information that identifies the user (e.g., user ID).

[0189] Furthermore, the setting reception device for remote control devices, terminal devices, etc., accepts the designation of the notification recipient. For example, the setting reception device accepts the designation of the notification recipient for information regarding evaluations based on set rules. For example, for evaluations based on rules set for user X, the setting reception device accepts the designation of user X's parent as the notification recipient. For example, for evaluations based on rules set for user X, the setting reception device accepts the email address of user X's parent as notification recipient information. The notification recipient may be a device such as a remote control device.

[0190] The setting reception device accepts the setting of notification destinations by the user. The setting reception device transmits information indicating the received notification destination settings (also called "setting notification destination information") to the control unit 100A. Based on the received setting notification destination information, the control unit 100A registers (stores) the notification destinations set for the user in the data storage unit 101, associating them with information that identifies the user (e.g., user ID).

[0191] Furthermore, the remote control device, terminal device, and other setting reception devices accept the specification of notification timing. For example, the setting reception device accepts the specification of notification timing for information regarding evaluations based on set rules. For example, the setting reception device accepts the specification that the notification timing for evaluations based on set rules for user X should be 21:00. Note that the notification timing can be set to any arbitrary timing, such as after a predetermined time (30 minutes) has elapsed after the user leaves bathroom 2.

[0192] The setting reception device receives notification timing settings from the user. The setting reception device transmits information indicating the received notification timing settings (also called "setting notification timing information") to the control unit 100A. Based on the received setting notification timing information, the control unit 100A registers (stores) the notification timing set for a user in the data storage unit 101, associating it with information that identifies that user (e.g., user ID).

[0193] Individual rules may include individual rules that are notified without waiting for a notification timing if the individual rule is not met (not followed) (also called "emergency individual rules"). Emergency individual rules may be set in advance, or the bathroom system 1 may accept the setting of emergency individual rules by the user. For example, an individual rule not to submerge oneself in the bathtub for more than one minute may be an emergency individual rule. In this case, if the control unit 100A evaluates (determines) that the individual rule not to submerge oneself in the bathtub for more than one minute is not met (not followed), it controls the system to notify the designated recipient at that time, regardless of the set notification timing.

[0194] In this case, the control unit 100A instructs the notification unit 103 to send information indicating that the user has not followed the individual rule of not submerging themselves in the bathtub for more than one minute to a designated notification recipient. The notification unit 103 then sends information indicating that the user has not followed the individual rule of not submerging themselves in the bathtub for more than one minute to the designated notification recipient. Note that the notification recipient for emergency individual rules may be a different notification recipient from the normal notification recipient (also called the "emergency notification recipient"). In this case, the bathroom system 1 may accept the setting of an emergency notification recipient (emergency notification recipient) for emergency individual rules. The bathroom system 1 may then send a notification to the emergency notification recipient without waiting for the notification timing if the emergency individual rule is not met (not followed).

[0195] The control unit 100A performs an evaluation process to evaluate each user's behavior in the bathroom 2 based on the rules for each user stored in the data storage unit 101. Then, based on the notification destinations and notification timings for each user stored in the data storage unit 101, the control unit 100A notifies (sends) the evaluation for each user to the designated notification destinations at the timing indicated by the notification timing.

[0196] Here, we will explain an example of evaluation using Figure 14. Figure 14 is a diagram illustrating an example of evaluation. In Figure 14, we show an example of evaluating the behavior of User X, a child in the family, in bathroom 2. Note that explanations of points that are the same as those explained in Figure 13 will be omitted as appropriate.

[0197] Figure 14 shows the case where the 12 individual rules on the left, as shown in Figure 13, are set as rules that user X must follow. In other words, Figure 14 shows the case where the 5 individual rules on the right, as shown in Figure 13, are not set as rules that user X must follow. Furthermore, Figure 14 explains, as an example, the case where the evaluation of user X is notified to user X's parent (father or mother) at 9 PM.

[0198] For example, the control unit 100A evaluates user X's behavior in bathroom 2 based on information about user X stored in the data storage unit 101. The control unit 100A evaluates user X's behavior in bathroom 2 using the rules set for user X and user X's behavior history in bathroom 2. The control unit 100A evaluates user X's behavior by comparing each of the individual rules set for user X with user X's behavior in bathroom 2 as shown in user X's behavior history. Note that the user's behavior history, such as user X's behavior history, may not only include information showing the user's behavior, but may also include various information collected regarding bathroom 2 during the period in which user X's behavior in bathroom 2 is being collected, such as information detected by the sensor unit 10 during that period.

[0199] For example, the control unit 100A evaluates (determines) whether the actions of user X in bathroom 2, as shown in user X's behavior history, satisfy (follow) each of the individual rules set for user X. For example, the control unit 100A evaluates user X's actions based on the individual rules set for user X that user X is following. For example, the control unit 100A evaluates user X's actions based on the individual rules set for user X that user X is not following.

[0200] In Figure 14, the control unit 100A evaluates User X's behavior in Bathroom 2 based on User X's actions on the day of processing (also referred to as "today"). For example, the control unit 100A evaluates User X's actions in Bathroom 2 today using the action history acquired on the day of processing (today) from User X's action history. For example, the control unit 100A calculates an evaluation value for User X (e.g., bathing score) based on the proportion of the individual rules set for User X that User X is following in relation to User X's actions in Bathroom 2 today.

[0201] For example, the control unit 100A uses the user X's activity history acquired today to evaluate (determine) that user X followed the individual rule of closing the door (e.g., door 22) in their actions in bathroom 2 today, if door 22 was closed while user X was inside bathroom 2. For example, the control unit 100A uses the user X's activity history acquired today to evaluate (determine) that user X followed the individual rule of keeping the time spent in bathroom 2 to 20 minutes or less in their actions in bathroom 2 today, if the time (period) from when user X entered bathroom 2 until when they left was 20 minutes or less. The control unit 100A also uses the user X's activity history acquired today to evaluate (determine) whether other individual rules were followed.

[0202] In Figure 14, the control unit 100A evaluates (determines) that two individual rules were not followed: the rule that the time spent soaking in the bathtub should be between 3 and 10 minutes, and the rule that one should rinse off with a shower after soaking in the bathtub. However, it determines that the other 10 individual rules were followed. Thus, in Figure 14, the control unit 100A evaluates (determines) that 10 of the 12 individual rules set as rules that user X should follow were followed.

[0203] Therefore, the control unit 100A calculates User X's evaluation value SC1 for today based on the number of individual rules set as rules that User X must follow, "12", and the number of rules that were evaluated (judged) as being followed, "10". The control unit 100A calculates User X's evaluation value SC1 for today as "83 (≒10 / 12 × 100)" points. For example, the evaluation value SC1 is a value (score) that indicates User X's evaluation of bathing today.

[0204] Figure 14 shows a case where terminal device DV1, a smartphone, displays content CT21, which includes user X's evaluation value SC1 for today. For example, terminal device DV1 used by a designated person (notification recipient), such as user X's parent, will display content CT21, which includes user X's evaluation value SC1 for today. Note that the display by terminal device DV1 is just one example; any device with a display function, such as a remote control, may also display content CT21.

[0205] The content CT21 shown in Figure 14 includes information indicating the user X's evaluation value SC1 for today, which is "83," the 12 individual rules on the left that user X must follow, and a mark indicating whether or not each individual rule was followed. Figure 14 shows the case where a first mark (a circle in Figure 14) indicating that the individual rule was followed, or a second mark (a checkmark in Figure 14) indicating that the individual rule was not followed, is superimposed on the text (text information) that represents each individual rule. In other words, the control unit 100A notifies the evaluation result for each individual rule.

[0206] Note that the display shown in Figure 14 is merely an example; for example, a mark indicating whether or not each individual rule was followed may be placed before the text (text information) that describes the individual rule, where the toggle switch is located. Furthermore, content CT21 may contain various types of information, not limited to the information shown in Figure 14. For example, if there is information indicating individual evaluations such as individual scores for each individual rule, content CT21 may include information indicating individual evaluations such as individual scores for each individual rule.

[0207] For example, the control unit 100A may generate content CT21 containing user X's evaluation value SC1 for today. In this case, the control unit 100A transmits the generated content CT21 to the terminal device DV1 via the notification unit 130. The terminal device DV1 then displays the content CT21. Note that content CT21 may be generated by any device other than the control unit 100A. For example, content CT21 may be generated by the terminal device DV. For example, the terminal device DV1 may already have an application for displaying evaluations installed. In this case, the terminal device DV1 performs various processes related to displaying evaluations using the application for displaying evaluations.

[0208] <1-7-2. Example of Bathroom System Configuration> The configuration of the bathroom system that performs the above-described processing will now be explained. Note that explanations of points similar to those described in Figures 3 and 4 will be omitted as appropriate.

[0209] The sensor unit 10 detects information that the bathroom system 1 uses to evaluate the user's behavior in the bathroom 2. The sensor unit 10 also detects information that the control unit 100A uses for evaluation processing. For example, the radio wave sensor 10a of the sensor unit 10 is installed in the bathroom 2 and detects changes in the state of the bathroom 2. For example, the radio wave sensor 10a detects the user's position or movement within the bathroom 2.

[0210] The control unit 100A performs various processes in the same way as the control unit 100. The control unit 100A also performs evaluation processing. An example of the configuration of the control unit 100A will be explained with reference to Figure 15. Figure 15 is a block diagram showing an example of the configuration of the control unit. The control unit 100A shown in Figure 15 has, in addition to the configuration of the control unit 100 shown in Figure 4, an evaluation unit 112, a rule setting unit 113, and a notification setting unit 114.

[0211] As shown in Figure 15, the control unit 100A includes a state estimation unit 110, a determination unit 111, an evaluation unit 112, a rule setting unit 113, and a notification setting unit 114. Note that the internal configuration of the control unit 100A is not limited to the configuration shown in Figure 15; other configurations are also acceptable as long as they perform the desired information processing.

[0212] The state estimation unit 110 of the control unit 100A performs various estimation processes in the same way as the state estimation unit 110 of the control unit 100. The determination unit 111 of the control unit 100A performs various determinations in the same way as the determination unit 111 of the control unit 100. For example, the state estimation unit 110 of the control unit 100A estimates the user's actions in the bathroom 2 based on the output data of the radio wave sensor 10a. The state estimation unit 110 estimates the user's actions in the bathroom 2, including the user's position and movement.

[0213] The state estimation unit 110 registers (stores) information indicating the user's actions in the estimated bathroom 2 as the user's behavior history in the data storage unit 101. The state estimation unit 110 registers (stores) the user's behavior history in the data storage unit 101 in association with information that identifies the user (e.g., user ID).

[0214] The evaluation unit 112 performs various evaluations. The evaluation unit 112 functions as an evaluation means that evaluates the user's behavior history in the bathroom based on the detection results of the detection means. The evaluation unit 112 evaluates the user's behavior history stored in the data storage unit 101 based on predetermined behavior rules regarding the use of bathroom 2. The evaluation unit 112 evaluates the user's behavior history stored in the data storage unit 101 based on predetermined behavior rules that include a plurality of individual rules.

[0215] The evaluation unit 112 calculates an individual or overall bathing score for a user's behavioral history based on predetermined evaluation criteria (e.g., conditions to be met (behavioral content), etc.) set for each individual rule. For example, the evaluation unit 112 calculates the overall bathing score for a user based on the percentage (also called the "simple pass rate") of the individual rules included in the predetermined behavioral rules corresponding to the user that the user's behavior met (followed) (also called the "achieved individual rules"). For example, the evaluation unit 112 may calculate the overall bathing score for a user by using the simple pass rate of the individual rules included in the predetermined behavioral rules corresponding to the user.

[0216] The evaluation unit 112 may also calculate the user's overall bathing score by applying weights. In this case, the evaluation unit 112 may calculate the user's overall bathing score using weight information indicating the importance of each individual rule. For example, the evaluation unit 112 may calculate the user's overall bathing score based on the weight value of each individual rule achieved by the user. For example, the evaluation unit 112 may calculate the user's overall bathing score as the sum of the weight values ​​of each individual rule achieved by the user.

[0217] Furthermore, the evaluation unit 112 may evaluate the user's behavioral history for each individual rule. In this case, the evaluation unit 112 calculates an individual bathing score for the user's behavioral history based on predetermined evaluation criteria set for each individual rule. For example, the evaluation unit 112 may calculate the user's individual bathing score using weight information indicating the importance of each individual rule. For example, the evaluation unit 112 may calculate the user's individual bathing score based on the weight values ​​of each of the individual rules achieved by the user. For example, the evaluation unit 112 may use the weight values ​​of the individual rules achieved by the user as the individual bathing score for each of the individual rules achieved by the user.

[0218] The rule setting unit 113 performs various settings related to rules. The rule setting unit 113 functions as a rule setting means that receives user operations and sets predetermined behavioral rules. For example, the rule setting unit 113 receives user operations via a setting reception device and sets predetermined behavioral rules based on the received user operations. For example, the rule setting unit 113 registers (stores) information regarding the set rules in the data storage unit 101.

[0219] The notification setting unit 114 performs various settings related to notifications. The notification setting unit 114 functions as a notification setting means that performs various settings related to notifications, such as the timing (notification timing) at which the notification unit 103 notifies a predetermined destination. The notification setting unit 114 sets various conditions related to notifications, such as notification timing and notification destination. For example, the notification setting unit 114 receives user operations via the setting reception device and sets the notification timing, notification destination, etc., based on the received user operations. For example, the notification setting unit 114 registers (stores) information related to the set notification, such as the notification destination and notification timing, in the data storage unit 101.

[0220] The control unit 100A is not limited to the above and may have various other units that perform different types of processing.

[0221] The data storage unit 101 stores information that the bathroom system 1 uses to evaluate the user's behavior in the bathroom 2. The data storage unit 101 stores the user's behavior history in the bathroom 2, which is acquired based on the detection results of the radio wave sensor 10a. The data storage unit 101 stores the user's behavior history along with the time. For example, the data storage unit 101 stores information indicating the user's behavior as a behavior history, associating it with the time when the information indicating that behavior was acquired.

[0222] The data storage unit 101 stores information about rules, including multiple individual rules. For example, the data storage unit 101 stores weight information, which indicates the weight (weight value) set for each individual rule. For example, the data storage unit 101 stores weight information, which indicates the weight value, which is the importance of each individual rule. The data storage unit 101 stores the rules set by the rule setting unit 113. The data storage unit 101 stores the rules set by the rule setting unit 113 in response to input from the user.

[0223] For example, the data storage unit 101 stores the rules set by the rule setting unit 113 in response to human (settings operator, etc.) operations on setting reception devices such as remote control devices and terminal devices. The data storage unit 101 stores the rules set for each user by the rule setting unit 113, associating them with information that identifies each user (e.g., user ID, etc.). For example, the data storage unit 101 stores predetermined behavioral rules set for each user, associating them with information that identifies each user.

[0224] The data storage unit 101 stores notification conditions, including notification timing, set by the notification setting unit 114. The data storage unit 101 stores notification conditions, including notification timing, set by the notification setting unit 114, in response to input from the user.

[0225] For example, the data storage unit 101 stores notification conditions, including notification timing, set by the notification setting unit 114, in response to human (operator) operations on setting reception devices such as remote control devices and terminal devices. The data storage unit 101 stores notification conditions, including notification timing, set by the notification setting unit 114 for each notification content, in association with information that identifies each user (e.g., user ID). The data storage unit 101 stores notification destinations for each user, in association with information that identifies each user. The data storage unit 101 stores information that identifies the terminal device to which notifications will be sent, such as an email address, as notification destination information, in association with information that identifies each user.

[0226] The notification unit 103 provides notifications regarding the evaluation of user behavior in bathroom 2 by the bathroom system 1. The notification unit 103 provides notifications based on the evaluation of user behavior in bathroom 2 by the bathroom system 1.

[0227] The notification unit 103 functions as a notification means for notifying a predetermined recipient of the evaluation results from the evaluation unit 112. The notification unit 103 notifies the predetermined recipient of the evaluation results for each individual rule. If the evaluation unit 112 evaluates that one of the individual rules does not meet a predetermined set rule, the notification unit 103 notifies the predetermined recipient of that fact without waiting for a predetermined notification timing.

[0228] For example, the notification unit 103 notifies the evaluation result by transmitting information about the evaluation to a device that displays the evaluation (terminal device, remote control device, etc.) in response to control by the control unit 100A. For example, the notification unit 103 notifies the evaluation result by transmitting information about the evaluation to a notification recipient in response to control by the control unit 100A.

[0229] <1-7-3. Example of Evaluation Process Flow> Based on the above, an example of the evaluation process performed by the bathroom system 1 will now be explained using Figure 16. Figure 16 is a flowchart showing an example of the procedure for the process performed by the bathroom system. Although the bathroom system 1 is described as the processing unit, each process may be performed by any of the devices, such as the sensor unit 10 (radio wave sensor 10a, etc.) or the control unit 100, depending on the device configuration included in the bathroom system 1.

[0230] Bathroom system 1 detects changes in the state of the bathroom (step S201). For example, bathroom system 1 uses radio wave sensor 10a to detect changes in the state of bathroom 2. Bathroom system 1 stores the user's activity history in the bathroom (step S202). For example, bathroom system 1 registers (stores) the user's activity history in bathroom 2 in data storage unit 101.

[0231] The bathroom system 1 evaluates the user's behavioral history based on predetermined behavioral rules regarding the use of the bathroom (step S203). For example, the evaluation unit 112 of the control unit 100A evaluates the user's behavioral history based on predetermined behavioral rules regarding the use of the bathroom.

[0232] Furthermore, the process described above is merely an example, and the bathroom system 1 may perform evaluations using various types of information. For example, the bathroom system 1 may perform evaluations using information other than that detected by the sensor unit 10. For instance, if the information detected by the sensor unit 10 is insufficient to evaluate whether the user is following the individual rules set for them, the bathroom system 1 may perform evaluations using information other than that detected by the sensor unit 10. In this case, the bathroom system 1 may request input from a person with a predetermined relationship to the user (for example, the user's parent) regarding whether the user followed the individual rules that cannot be evaluated using the information detected by the sensor unit 10.

[0233] For example, the bathroom system 1 may send information to a terminal device used by the user's parent (e.g., terminal device DV1) requesting input on whether or not the user followed the individual rule, and then evaluate (determine) whether or not the user followed the individual rule based on the information entered by the user's parent. Furthermore, for individual rules that cannot be evaluated (determined) using information detected by the sensor unit 10, the bathroom system 1 may request input from the user themselves on whether or not they followed that individual rule.

[0234] As described above, the bathroom system 1 can evaluate the user's behavior in the bathroom by evaluating the user's behavioral history based on predetermined behavioral rules regarding bathroom use. This allows the bathroom system 1 to provide new value based on the detection of the state within the bathroom.

[0235] For example, it is believed that applying radio wave sensors not only to abnormal situations such as falls or drowning, but also to other services, could lead to the provision of even greater value. Therefore, Bathroom System 1 measures and records the movements of people entering the bathroom, and also incorporates equipment operation information, accumulating behavioral history even within the bathroom. This makes it possible to provide new value based on the data acquired when monitoring people's movements with radio wave sensors. Furthermore, Bathroom System 1 determines whether the user has met pre-determined rules and provides a bathing score. In addition, Bathroom System 1 can also notify external parties of rule deviations if necessary. As a result, Bathroom System 1 can provide new value based on the detection of conditions within the bathroom.

[0236] For example, in the application of radio wave sensors such as millimeter-wave radar in bathrooms, the primary focus is generally on monitoring, such as detecting falls. On the other hand, Bathroom System 1 offers additional added value by detecting human movement and the operating status of equipment, and evaluating the bathing situation. Furthermore, Bathroom System 1 can provide information on a child's growth by continuously recording data. In addition, Bathroom System 1 can also alert people outside the bathroom in the event of an emergency or abnormality.

[0237] <1-8. Other processing examples> Bathroom system 1 may perform various processes, not limited to those described above. For example, bathroom system 1 may provide new value by performing various services using various information, such as the information obtained through the processes described above. The processes performed by bathroom system 1 will be described below in this regard. Points that are the same as those described above will be omitted as appropriate.

[0238] <1-8-1. Example of display based on detection results> First, with reference to Figure 17, the division of the bathroom area where detection by the bathroom system 1 is performed will be explained. Figure 17 is a top view showing an example of the division of the bathroom area. Figure 17 shows a top view division of an example of bathroom 2 to which the bathroom system 1 shown in Figure 1 is applied. In the display processing based on the detection results by the bathroom system 1, bathroom 2 is divided into a first area (Figure 17(1)) where the bathtub is installed and a second area (Figure 17(2)) where the water dispenser is installed. Furthermore, the second area is divided into a third area (Figure 17(3)) near the water dispenser, which is within a predetermined range from the position of the water dispenser, and the remaining area.

[0239] In the bathroom 2, which is divided into the areas described above, the bathroom system 1 detects users and displays information based on the detection results. For example, the bathroom system 1 uses the detected information such as the presence, location, and actions of users in bathroom 2 to display the user's "elapsed time using the bathroom," "total time using the bathroom," "user's actions," and "evaluation of user's actions."

[0240] "Elapsed time using the bathroom" is a concept that includes various elapsed times at any point from when the user starts using bathroom 2 until when they finish using it.

[0241] The elapsed time used in the bathroom includes at least one of the following: the time the user spends in the first area (first area stay time), the time the user spends in the second area (second area stay time), the time the water dispenser in bathroom 2 is in use, or the total time, which is the sum of the time spent in the first area and the time spent in the second area (bathroom usage elapsed time). Note that the total time is the sum of the time spent in the first area and the time spent in the second area, and therefore represents the elapsed time from the moment the user started using bathroom 2. The time the water dispenser is in use may be the time the user spends in the third area, or the time the solenoid valve of the water dispenser is open, or the time water is detected being dispensed from the water dispenser.

[0242] "Bathroom usage time" is a concept that includes various periods of time taken by the user from the start to the end of their use of Bathroom 2. For example, bathroom usage time includes the period from the start to the end of bathroom use, the time spent in the first area, the time spent in the second area, the time spent using the water dispenser, and the total time at the end of that period. In other words, while the aforementioned "elapsed time of bathroom use" indicates various elapsed times, usage times, and total times at any point within the user's bathroom 2 usage time, "bathroom usage time" indicates various elapsed times, usage times, and total times at the end of the user's use of Bathroom 2. Note that "elapsed time of bathroom use" may also be included in "bathroom usage time".

[0243] "User behavior" refers to actions taken up to any point within the time allotted for using Bathroom 2. For example, user behavior includes the user's location within Bathroom 2 and various actions the user takes when using Bathroom 2, such as "entering the bathroom, turning on the shower, turning off the shower, getting into the bathtub, soaking in the bathtub, getting out of the bathtub, getting out of the bathtub, leaving the bathroom." "Evaluation of user behavior" is the result of evaluating the user's behavioral history based on predetermined behavioral rules.

[0244] For example, the bathroom system 1 displays, in real time or retrospectively, the user's location in bathroom 2, the elapsed time (or duration) of bathroom use, activity history, and an evaluation of the user's actions, in response to user operations.

[0245] The following describes several examples of screens that the bathroom system 1 can display with the configuration described below. For the purposes of this description, we will explain as an example the case where multiple users (family members), including children User X and User Y and their parents (father, mother, etc.), are pre-registered as users of the bathroom. Furthermore, we will explain as an example the case where the destination (predetermined recipient) of the screen displayed by the bathroom system 1 is terminal device DV2, which is a tablet terminal used by the parents of User X and User Y. For example, terminal device DV2 has an application installed for displaying information transmitted from the bathroom system 1, and terminal device DV2 performs various processes related to displaying information transmitted from the bathroom system 1 using the information display application. Note that the destination for information transmitted from the bathroom system 1 may be another information processing device, or it may be the email address of a predetermined person (such as User X's parent).

[0246] First, let's explain how the bathroom system 1 displays information including the elapsed time spent in the bathroom or the time spent in the bathroom. For example, the notification unit 103 first refers to the user's activity history and counts the elapsed time spent in the bathroom (which becomes the time spent in the bathroom at the end of use), including the total time, the time spent in the first area, and the time spent using the water dispenser. Next, the notification unit 103 generates a screen that includes the counted elapsed time spent in the bathroom (or the time spent in the bathroom). The notification unit 103 also refers to the activity history and history information and generates a screen that indicates the user's location in the bathroom 2 using an icon representing the user. Finally, the notification unit 103 displays the generated screen on the terminal device DV2. The notification unit 103 may display the generated screens one by one or in combination.

[0247] An example of a screen generated by the bathroom system 1 will be explained with reference to Figure 18. Figure 18 is a diagram showing an example of a screen that includes the elapsed time of bathroom use or the time of bathroom use. Figure 18 shows content CT31, which is an example of a screen that includes the elapsed time of bathroom use or the time of bathroom use.

[0248] For example, as shown in Figure 18, the bathroom system 1 displays a screen that includes the user X's location in the bathroom and the elapsed time spent in the bathroom. The left center of Figure 18 shows a schematic diagram of bathroom 2, as described in Figure 17, and the user's location within bathroom 2. The bathroom system 1 may also display the boundaries of each area within bathroom 2, as shown in Figure 17. The user's location is indicated by the position of an icon representing the user. The icon may be set in a display manner that allows each user to be identified.

[0249] The central right side of Figure 18 shows the elapsed time or total time the user has used the bathroom. As explained above, the display while the user is using bathroom 2 will include the elapsed time the user has used the bathroom, and the content CT31 displayed after the user has finished using bathroom 2 will include the total time the user has used the bathroom. For example, "Entry 00:05" in Figure 18(1) shows the total time. Also, "Bathing 00:00" in Figure 18(2) shows the time spent in the first area. Also, "Shower 00:00" in Figure 18(3) shows the time the water dispenser was used. Note that the time spent in the second area is not shown in the example in Figure 18, but the bathroom system 1 can appropriately display each time, including the time spent in the second area, which is included in the elapsed time or total time the user has used the bathroom.

[0250] The top of Figure 18 shows the screen change tabs used to switch between displayed screens. For example, the bathroom system 1 can switch the displayed screen by pressing or flicking the screen change tabs. For example, the bathroom system 1 accepts the operation of the screen change tab and switches the displayed screen to the "screen including user activity history" or the "screen including usage time and evaluation of user activity," which will be described later.

[0251] The lower part of Figure 18 shows the time bar. The time bar shows the time from when the user started using the bathroom until the present or when they finished using the bathroom. Moving the pointer on the time bar to the left indicates that the time is earlier, and moving it to the right indicates that the time is later.

[0252] Next, we will explain how information is displayed by operating the time bar. For example, the notification unit 103 refers to the user's activity history and counts the elapsed time the user has used bathroom 2 from the time the user started using bathroom 2 until the time set by operating the time bar. The notification unit 103 then generates a screen showing the counted elapsed time the user has used the bathroom. The notification unit 103 also refers to the activity history and history information and generates a screen that indicates the user's position in bathroom 2 at the time set by operating the time bar with an icon, and indicates the user's position in the past or future than the time set by the operation with predetermined symbols.

[0253] An example of a screen generated by the bathroom system 1 will be explained with reference to Figure 19. Figure 19 is a diagram showing an example of a screen that changes depending on the operation of the time bar, and shows an example of a screen when the time bar is operated on the screen of Figure 18. For example, the upper part of Figure 19 shows the position of user X in bathroom 2 and the elapsed time of bathroom use at the middle of the time of bathroom use, which is set by the user operation. The lower part of Figure 19 shows the position of user X in bathroom 2 and the elapsed time of bathroom use at the end of the time of bathroom use, which is set by the user operation.

[0254] In this way, the bathroom system 1 accepts the user's operation of the time bar and displays the user X's position in the bathroom 2 at the time set by the operation, along with various times. Regarding the display of the user's position in the bathroom 2, as shown in Figure 19, the bathroom system 1 can display not only the user X's position in the bathroom 2 at the time set by the operation, but also the user X's position in the bathroom 2 before that time (in the past). For example, in the example in Figure 19, the bathroom system 1 displays the user X's position in the bathroom before the set time with the symbol "○".

[0255] The screens shown in Figures 18 and 19 may be displayed in a manner that allows each user to be identified. For example, the bathroom system 1 can display various information in a display manner that is pre-set for each user. Figure 20 is a diagram showing an example of the difference in display manner depending on the user. Figure 20 shows an example in Figure 18 where the user is user Y instead of user X. In the example of Figure 20, user Y's image is set as user Y's icon, and a predetermined color is set as the frame of the icon and the accent color of the screen.

[0256] The following describes examples of information that the bathroom system 1 can display in addition to content CT31. First, we will explain the display of information including the user's activity history. For example, the notification unit 103 refers to the user's activity history and generates a screen showing information about the user's activities detected since the user started using bathroom 2. In this case, if the time bar is operated, the notification unit 103 generates a screen showing the user's activities detected from the time the user started using bathroom 2 until the time set by the operation.

[0257] An example of a screen generated by the bathroom system 1 will be explained with reference to Figure 21. Figure 21 is a diagram showing an example of a screen that includes the user's activity history displayed by the bathroom system 1. Figure 21 shows content CT41, which is an example of a screen that displays the activity history in addition to the example screen in Figure 18. For example, as shown in Figure 21, the bathroom system 1 displays a screen that includes the user's activity history, such as "Took a bath 19:41, turned on the shower 19:42, turned off the shower 19:48, got into the bathtub 19:48...".

[0258] Next, we will explain how to display information including the time spent using the bathroom and an evaluation of the user's behavior (behavioral history evaluation). For example, the notification unit 103 refers to the user's behavioral history and evaluation results to generate a screen that includes the time spent using the bathroom and an evaluation of the user's behavior. An example of a screen generated by the bathroom system 1 will be explained with reference to Figure 22. Figure 22 is a diagram showing an example of a screen that includes the time spent using the bathroom and an evaluation of the user's behavior. In Figure 22, content CT51 is shown as an example of a screen that includes the time spent using the bathroom and an evaluation of the user's behavior.

[0259] First, let's explain an example of how the bathroom system 1 displays the time spent using the bathroom. For example, as shown at the top of Figure 22, the bathroom system 1 displays information about the user's bathroom usage time per week, such as "Entry to exit time: 105:00", "Shower water usage time: 45:00", and "Bathing time: 60:00". In this case, the bathroom system 1 can display the time spent using the bathroom in a graph format. For example, as shown at the top of Figure 22, the bathroom system 1 displays a bar graph showing the total time for each day of the week as a solid line, the usage time of the water dispenser as a dotted line, and the time spent in the first area as a dashed line.

[0260] In the example shown in Figure 22, the bathroom system 1 displays the user's bathroom usage time per week. However, it can also display the user's bathroom usage time per day, per month, per six months, or over other predetermined periods.

[0261] Next, we will explain an example of how the bathroom system 1 displays an evaluation of the user's behavior. For example, the bathroom system 1 displays a screen that includes information such as the "Our House Rules," which are examples of predetermined behavioral rules, such as "1. Wash your body before entering the bathtub" and "2. Get out by 9 PM," and whether or not the "Our House Rules" were followed, indicated by symbols such as "○" or "×".

[0262] The prescribed behavioral rules are the rules imposed on users when using Bathroom 2. These rules may be designed to increase the bathing score when followed. Furthermore, these prescribed behavioral rules may be established by users of the common Bathroom 2.

[0263] In addition to the examples mentioned above, the bathroom system 1 can display various other information. Below, we will describe some examples of notification screens provided by the bathroom system 1. Next, we will explain the notification when a user's actions deviate from the rules of predetermined actions. The bathroom system 1 refers to the user's action history and information on the rules to generate a screen that notifies the user when their actions deviate from the rules of predetermined actions. An example of a screen generated by the bathroom system 1 will be explained with reference to Figure 23. Figure 23 is a diagram showing an example of a notification when actions deviate from the rules of predetermined actions.

[0264] For example, in a situation where there is a behavioral rule that bathing time should be within 20 minutes, if user X's bathing time exceeds 20 minutes, the bathroom system 1 will notify that "user X's bathing time has exceeded 20 minutes" by changing the background of content CT31 and the display of the bathing time (time spent in the first area), as shown in Figure 23.

[0265] Next, we will explain how the system notifies the user when their actions exceed predetermined criteria. The bathroom system 1 refers to the user's behavior history and information on predetermined criteria to generate a screen that notifies the user when their actions exceed predetermined criteria. An example of a screen generated by the bathroom system 1 will be explained with reference to Figure 24. Figure 24 is a diagram showing an example of notification when predetermined criteria are exceeded. In Figure 24, content CT61 is shown as an example of a screen notifying that user X's actions have exceeded predetermined criteria. The predetermined criteria are standards set for user actions with the aim of preventing accidents in the bathroom. The predetermined criteria may be standards set for the purpose of detecting situations that endanger the user's life. For example, if 20 seconds have passed since user X's head entered the bathtub, the bathroom system 1 will display a screen containing the message "Please check! 20 seconds have passed since your head entered the bathtub," as shown in Figure 24.

[0266] As described above, the bathroom system 1 displays various information. For example, the control unit 100B of the bathroom system 1 may generate content CT31 including the elapsed time of user X's use of the bathroom, content CT41 including user X's activity history, content CT51 including an evaluation of user X's bathroom usage time and activity, and content CT61 including notification that user X's activity history exceeds a predetermined standard. In this case, the control unit 100B transmits at least one of the generated contents CT31 to CT61 to the terminal device DV2 via the notification unit 103. The terminal device DV2 then displays at least one of the contents CT31 to CT61. The control unit 100B also accepts operation from a user other than user X to the terminal device DV2 and switches the display of contents CT31 to CT61.

[0267] Contents CT31 to CT61 may be generated by any device other than the control unit 100B. For example, contents CT31 to CT61 may be generated by the terminal device DV2. In this case, the control unit 100B may transmit information including the elapsed usage time of user X's bathroom to the terminal device DV2, and the terminal device DV2 may generate and display contents CT31 to CT61 using the information received from the control unit 100B.

[0268] <1-8-2.Configuration example of bathroom system> The configuration of the bathroom system 1 that performs the above processing will be described. Descriptions of points that are the same as those already described will be omitted as appropriate.

[0269] The sensor unit 10 detects information used by the bathroom system 1 for display processing. For example, the sensor unit 10 functions as a detection means for detecting a user in the bathroom 2. For example, the sensor unit 10 detects the presence, position, and behavior of a user in the bathroom. For example, the sensor unit 10 detects whether a user is located in at least one of the plurality of regions into which the bathroom 2 is divided. For example, the sensor unit 10 detects that the user is located in the first region by the radio wave sensor 10a. Further, the sensor unit 10 detects whether the user is located in the second region by the radio wave sensor 10a. Further, the sensor unit 10 detects whether the user is located in the third region by the radio wave sensor 10a.

[0270] The control unit 100B performs various types of processing in the same manner as the control unit 100A. Further, the control unit 100B performs display processing. An example of the functional configuration of the control unit 100B will be described with reference to FIG. 25. FIG. 25 is a block diagram showing an example of the configuration of the control unit. The control unit 100B shown in FIG. 25 includes a display control unit 115, a personal identification unit 116, and an abnormality estimation unit 117 in addition to the configuration of the control unit 100A shown in FIG. 15.

[0271] The display control unit 115 controls the display means based on a predetermined input operation. For example, the display control unit 115 controls the display means based on a user operation such as pressing a button or flicking. The display control unit 115 switches and controls the plurality of display contents to be displayed on the display means based on a user operation.

[0272] The plurality of display contents switchable by the display control unit 115 include at least first display content that displays the elapsed usage time of a bathroom together with an area map of the bathroom, second display content that displays the action history of a user in the bathroom, and third display content that displays an evaluation of the user's actions.

[0273] For example, the display control unit 115 receives a content switching operation from a user, and switches the content displayed on the display means to any one of the first display content as shown in content CT31 of FIG. 18, the second display content as shown in content CT41 of FIG. 21, and the third display content as shown in content CT51 of FIG. 22.

[0274] Note that, even when display content is switched by the display control unit 115, processing required for displaying each display content is continued. For example, even when the first display content is not displayed on the terminal device DV2, measurement of the elapsed usage time of the bathroom included in the first display content is continued.

[0275] The personal identification unit 116 functions as an identification means for identifying a person (individual). The personal identification unit 116 of the control unit 100B executes identification processing in the same manner as the personal identification unit of the control unit 100. For example, the personal identification unit 116 identifies a user included in a user list registered in advance as a user of the bathroom 2. The personal identification unit 116 performs personal identification using the user list stored in the data storage unit 101.

[0276] The personal identification unit 116 performs personal identification of a person located in the bathroom 2. For example, the personal identification unit 116 uses sensor information detected by the sensor unit 10 to perform personal identification of a person located in the bathroom 2. The personal identification unit 116 performs personal identification using at least one of the following: physique, posture, and gait of a person in the bathroom 2, which is obtained by detection by the radio wave sensor 10a.

[0277] For example, if the personal identification unit 116 finds that the user in the user list corresponds to the height of a person in the bathroom 2 as detected by the radio wave sensor 10a, it identifies (estimates) that user as a person in the bathroom 2. In this case, the personal identification unit 116 may also identify (estimate) that user as a person in the bathroom 2 if the difference between the user's height and the height of a person in the bathroom 2 as detected by the radio wave sensor 10a is within a predetermined range (e.g., an error of 5 centimeters).

[0278] Furthermore, if the personal identification unit 116 does not include any users in the user list whose height difference from the height of a person in the bathroom 2 detected by the radio wave sensor 10a is within a predetermined range (for example, an error of 5 centimeters), it may identify (estimate) that the person in the bathroom 2 is not a user. In this way, if the personal identification unit 116 identifies that the person in the bathroom 2 is not a user (for example, a suspicious person), it may estimate that the person is a suspicious person or an unidentifiable user. In this case, the personal identification unit 116 instructs the notification unit 103 to notify a predetermined recipient that a person not included in the user list is in the bathroom 2, for example, that a suspicious person or an unidentifiable person (user) has used the bathroom 2.

[0279] The personal identification unit 116 can identify the person inside the bathroom 2 by any process, as long as it is capable of identifying the person using the bathroom 2 or other water-related space, similar to the personal identification unit of the control unit 100 described above. For example, the personal identification unit 116 may identify the person inside the bathroom 2 based on their voice or actions.

[0280] The abnormality estimation unit 117 performs abnormality estimation. The abnormality estimation unit 117 may also perform processing related to abnormality estimation (determination) performed by the state estimation unit 110, determination unit 111, etc. of the control unit 100.

[0281] The abnormality estimation unit 117 functions as an abnormality estimation means that estimates abnormalities in the bathroom 2 based on the user's behavior history stored in the data storage unit 101. The abnormality estimation unit 117 estimates that an abnormality has occurred in the bathroom 2 if the detection means detects at least one of the following: the user has fallen in the bathroom 2, the user is in a low posture and has not moved for a predetermined period of time, there is an abnormal sound in the bathroom 2, there is an abnormality related to the user's breathing, or there is an abnormality related to the user's heart rate.

[0282] For example, the anomaly estimation unit 117 estimates whether an anomaly occurred in the bathroom 2 when the user was using it, based on the user information stored in the data storage unit 101. The anomaly estimation unit 117 estimates whether an anomaly occurred in the bathroom 2 when the user was using it, using the anomaly estimation conditions stored in the data storage unit 101 and the user's behavior history in the bathroom 2. The anomaly estimation unit 117 estimates whether an anomaly occurred in the bathroom 2 when the user was using it by comparing each of the anomaly estimation conditions stored in the data storage unit 101 with the user's behavior in the bathroom 2 as shown in the user's behavior history. Note that the user's behavior history is not limited to information showing the user's behavior, but may also include various information collected regarding the bathroom 2 during the period in which the user's behavior in the bathroom 2 is being collected, such as information detected by the sensor unit 10 during that period.

[0283] For example, the abnormality estimation unit 117 estimates that an abnormality occurred in the bathroom 2 when the user was using it, if it estimates that the user fell in the bathroom 2 using the user's activity history in the bathroom 2. For example, the abnormality estimation unit 117 estimates that an abnormality occurred in the bathroom 2 when the user was using it, if it estimates that the user was in a low posture and did not move for a predetermined period of time using the user's activity history in the bathroom 2.

[0284] The above is merely an example, and the abnormality estimation unit 117 may estimate abnormalities using various information. For example, the abnormality estimation unit 117 may use the user's activity history in the bathroom 2 to estimate that an abnormality occurred in the bathroom 2 when the user was in the bathroom 2, if an abnormal sound (e.g., a sound of a predetermined abnormal volume) is detected in the bathroom 2 while the user is inside the bathroom 2. The abnormality estimation unit 117 may also estimate that an abnormality occurred in the bathroom 2 when the user was in the bathroom 2 if an abnormality related to the user's breathing (e.g., breathing indicating hyperventilation) is detected. The abnormality estimation unit 117 may also estimate that an abnormality occurred in the bathroom 2 when the user was in the bathroom 2 if an abnormality related to the user's heart rate (e.g., heart rate indicating arrhythmia) is detected.

[0285] As an alternative example, the abnormality estimation unit 117 can estimate that the user's behavior history has exceeded a predetermined standard. Here, the predetermined standard is a standard set for each of the user's actions for the purpose of preventing accidents, etc., in the bathroom 2, and one example is "20 seconds have passed since the user's head was submerged in the bathtub."

[0286] The control unit 100B is not limited to the above and may have various other processing units.

[0287] The data storage unit 101 stores display information as user information. The display information includes information such as icons and display modes set for each user.

[0288] The data storage unit 101 stores information about the area where the user stayed. The data storage unit 101 stores the information of each area that divides the bathroom 2 and the information of the user's location estimated based on the detection results of the radio wave sensor 10a, as information about the area where the user stayed.

[0289] Furthermore, the data storage unit 101 stores information on the user's use of the water dispensing device. The data storage unit 101 stores information on the use of the water dispensing device estimated based on the detection results of the radio wave sensor 10a. Information on the area of ​​stay and information on the use of the water dispensing device are included in the user's behavior history. The data storage unit 101 stores information that meets predetermined criteria.

[0290] The input unit 102 functions as an operating means for receiving predetermined operation inputs. For example, the input unit 102 can receive various operations from the operator via the display surface (e.g., a liquid crystal display) of a display device through a touch panel function of the display device. For example, the input unit 102 may be a terminal device DV1 or terminal device DV2 that has a touch panel function.

[0291] The notification unit 103 provides notifications regarding the estimation of abnormalities in bathroom 2 by the bathroom system 1. The notification unit 103 also provides notifications regarding the user's behavior in bathroom 2 by the bathroom system 1.

[0292] The notification unit 103 functions as a notification means that sends a notification of the use of bathroom 2, including the user's activity history, to a predetermined recipient at a predetermined time (for example, a predetermined time). If the abnormality estimation unit 117 estimates an abnormality, the notification unit 103 will notify the predetermined recipient of the abnormality in bathroom 2 without waiting for the predetermined time.

[0293] The notification unit 103 functions as a notification means that, based on the estimation results of the abnormality estimation unit 117, sends an abnormality notification within the bathroom 2 to a predetermined recipient other than the user identified by the personal identification unit 116. The notification unit 103 sends an abnormality notification within the bathroom 2 to a predetermined recipient that includes a pre-set family member or external emergency contact. The external emergency contact is not limited to the service provider of the monitoring service, but may also be, for example, a nurse at a hospital, a caregiver at a care home, etc., or a corresponding contact (e.g., email address, device, etc.). If the personal identification unit 116 identifies a user not included in the user list, the notification unit 103 notifies the predetermined recipient that there has been use by a suspicious person or an unidentifiable user.

[0294] For example, the notification unit 103 notifies of an abnormality by transmitting information related to the abnormality to a device that displays information (such as a terminal device or a remote control device) under the control of the control unit 100B. For example, the notification unit 103 notifies of an abnormality by transmitting information related to the abnormality to a notification destination under the control of the control unit 100B.

[0295] As another example, the notification unit 103 refers to the action history stored in the data storage unit 101 to count (measure) the elapsed usage time of the bathroom and the usage time of the bathroom. For example, the notification unit 103 uses information on the position of the user in the bathroom 2 included in the action history stored in the data storage unit 101 to count how long the user has stayed (elapsed bathroom usage time) or has stayed (bathroom usage time) in each area within the bathroom 2.

[0296] For example, when the user enters the bathroom and moves to the second area, the notification unit 103 starts counting the total time and the staying time in the second area. Thereafter, when the user moves to the third area or uses the water discharging device, the notification unit 103 starts counting the usage time of the water discharging device. Thereafter, when the user moves from the second area to the first area, the notification unit 103 stops counting the staying time in the second area and the usage time of the water discharging device, and starts counting the staying time in the first area. Then, when the user leaves the bathroom, the notification unit 103 stops counting the staying time in the first area, the staying time in the second area, and the total time.

[0297] Furthermore, as another example, the notification unit 103 functions as a display means for displaying various types of information. The notification unit 103 may transmit information to the terminal device DV2 for display. The notification unit 103 may be the terminal device DV2, and may display information on its own device. For example, the notification unit 103 displays information transmitted from the control unit 100B on the screen of its own device (the terminal device DV2).

[0298] The following describes the information displayed by the notification unit 103. Based on the detection results of the detection means, the notification unit 103 displays the elapsed time the user has used the bathroom. For example, the notification unit 103 displays the elapsed time the user has used the bathroom using information about the user's activity history, including the presence, location, and actions of the user in the bathroom 2 that was detected.

[0299] As described above, the elapsed time used in the bathroom includes at least one of the following: time spent in the first area, time spent in the second area, time used with the water dispenser, and total time (elapsed time used in the bathroom). For example, the notification unit 103 displays the elapsed time used in the bathroom, which includes at least one of the time spent in the first area where the bathtub is located, time spent in the second area where the water dispenser is located, and time used with the water dispenser in the bathroom 2.

[0300] At this time, the notification unit 103 can display the user's area of ​​stay within the bathroom 2 overlaid on the bathroom area map. The "user's area of ​​stay" refers to the area within the bathroom 2 where the user is staying. The user's area of ​​stay includes information about the user's location. The area within the bathroom 2 may be divided into the first area, second area, and third area as described above, or it may be an area obtained by dividing the first area and the second area shown in Figure 17 into three parts vertically.

[0301] For example, as shown in Figure 18, the notification unit 103 refers to information about the user's area of ​​stay and overlays an icon indicating the user's area of ​​stay onto the area map of bathroom 2. The icons are set to a display manner that allows each individual to be identified by the image or the color of the icon's frame. For example, the notification unit 103 displays the user's area of ​​stay using an icon that indicates the individual (user) identified by the personal identification unit 116.

[0302] The notification unit 103 can also change the display mode of the displayed content in conjunction with the display mode of the icon. For example, as shown in Figure 20, if the display mode of the icon of the personally identified user Y is accented with diagonal lines, the notification unit 103 will also change the display mode of the account display area and time bar of content CT31 to diagonal lines.

[0303] An example of how the notification unit 103 displays time in accordance with the user's movement within the area will be explained. Based on the user's movement from the second area to the first area within the bathroom 2, the notification unit 103 displays the time spent in the first area upon the start of the stay, as well as the total time spent in the bathroom 2. For example, when the notification unit 103 obtains a history of the user's movement from the second area to the first area within the bathroom 2, it displays the time spent in the first area (Figure 18(2)), which is counted at the start of the user's stay in the first area, and also displays the total time the user has spent in the bathroom. For example, the notification unit 103 displays the total time (Figure 18(1)), which is counted at the start of the user's stay in the bathroom 2.

[0304] Next, we will explain how the time is displayed when a user moves from the first area to the second area. Based on the user's movement from the first area to the second area within the bathroom, the notification unit 103 displays the time spent in the first area upon the end of the stay, as well as the total time spent in the bathroom. For example, when the notification unit 103 obtains a record of the user's movement from the first area to the second area within bathroom 2, it stops counting the time spent in the first area and displays the time spent in the first area at the time of the stop (Figure 18(2)). In addition, the notification unit 103 displays the total time spent in the bathroom by the user. For example, the notification unit 103 displays the total time counted from the start of the user's stay in bathroom 2 (Figure 18(1)).

[0305] The notification unit 103 can update various times. The notification unit 103 updates the total time along with updating at least one of the following: the time spent in the first area, the time spent in the second area, and the time the water dispenser is used. For example, the notification unit 103 updates the time spent in the first area when the user is in the first area, along with the time the user started using the bathroom or the elapsed time since the start of use (total time), and updates the time the water dispenser is used when the user is using the water dispenser or when the user is in the third area.

[0306] "Bathroom use start time" refers to the time when the user begins using Bathroom 2, specifically the time the user enters Bathroom 2. "Elapsed time since start of use" refers to the total time elapsed since the user began using Bathroom 2.

[0307] For example, if the user is staying in the first area, the notification unit 103 advances the count of time spent in the first area and updates the time spent in the first area, and also updates the total time. Also, if the user is staying in the second area, the notification unit 103 advances the count of time spent in the second area and updates the time spent in the second area, and also updates the total time. Also, if the user is staying in the third area or if the user is using the water dispensing device, the notification unit 103 advances the count of time spent using the water dispensing device and updates the time spent using the water dispensing device, and also updates the time spent in the second area and the total time.

[0308] The notification unit 103 displays content including the user's activity history or usage time within the bathroom 2, based on the detection results of the detection means. For example, as shown in Figure 21, the notification unit 103 displays content CT41 on the terminal device DV2, which includes activity history showing various actions of the user within the bathroom 2, acquired based on the detection results of the radio wave sensor 10a.

[0309] As an alternative example, as shown in Figure 18, the notification unit 103 displays content CT31, which includes the user's bathroom usage time acquired based on the detection results of the radio wave sensor 10a, on the terminal device DV2. The usage time displays the period from the start to the end of the user's bathroom use, as well as the time spent in the first area, the time spent in the second area, the usage time of the water dispenser, and the total time at the end of that period.

[0310] The notification unit 103 can display the user's location along with the usage time. The notification unit 103 displays the user's location or stay time in each of the multiple areas into which the bathroom 2 is divided, along with the time spent bathing in the bathtub or the time spent using the water dispenser installed in the bathroom 2. For example, as shown in Figure 18, the notification unit 103 displays the user's bathroom usage time acquired based on the detection results of the radio wave sensor 10a, including the stay time in the first area and the use time of the water dispenser, and also indicates the area the user was staying in at that time with an icon.

[0311] The notification unit 103 can simultaneously display the user's occupancy area at the time set by the operating means, as well as the occupancy area before or after the set time. For example, as shown in Figure 19, the notification unit 103 displays the user's occupancy area at the time set by the time bar operation received by the input unit 102 as an icon, and at the same time displays the user's occupancy area before that time using a predetermined graphic. For example, as shown in Figure 19, the notification unit 103 displays content CT31, which includes the user's occupancy area before the time set by the time bar operation, on the terminal device DV2.

[0312] In addition to displaying the areas of stay before and after the set time, the notification unit 103 can display various times. For example, the notification unit 103 displays the user's areas of stay along with the time spent in each area. For example, the notification unit 103 displays the time spent bathing in the bathtub in the bathroom 2, or the time spent using the water dispenser in the bathroom, or the time spent using the bathroom, at the time set by an operation means that accepts a predetermined input operation. For example, as shown in Figure 19, the notification unit 103 displays content CT31 on the terminal device DV2, which includes the user's time spent in the first area, the time spent using the water dispenser, and the total time at the time set by the operation of the time bar received by the input unit 102.

[0313] The notification unit 103 displays the evaluation results of the evaluation means. For example, the notification unit 103 displays a predetermined behavioral rule that includes multiple individual rules, information on whether the user's behavioral history satisfies the predetermined behavioral rule that includes multiple individual rules, and an overall bathing score. For example, as shown in Figure 14, the notification unit 103 displays content CT21, which includes the results of various evaluations, on the terminal device DV1. Also, as shown in Figure 22, the notification unit 103 displays content CT51, which includes an evaluation of the user's behavioral history, on the terminal device DV2.

[0314] The notification unit 103 overlays evaluation target content, which indicates the users of bathroom 2 whose behavioral history will be evaluated by the evaluation means based on predetermined behavioral rules, onto the area map of bathroom 2. For example, the notification unit 103 overlays icons, which are evaluation target content indicating the users of bathroom 2 whose behavioral history will be evaluated, onto the area map of bathroom 2.

[0315] The notification unit 103 functions as a notification means for notifying various types of information. The notification unit 103 notifies when a user's behavior history falls outside of predetermined behavior rules. For example, if the evaluation unit 112 evaluates that the user's behavior history does not meet predetermined behavior rules, the notification unit 103 displays a warning screen regarding the predetermined behavior rule that was evaluated as not being met. For example, as shown in Figure 23, if the user's behavior in bathroom 2 does not meet the behavior rule of "bathing time within 20 minutes," the notification unit 103 changes the background color of content CT31 and displays a screen that highlights the excess bathing time.

[0316] The notification unit 103 notifies the user when their behavior history exceeds a predetermined standard. For example, the notification unit 103 displays a warning screen when the anomaly estimation unit 117 estimates that the user's behavior history exceeds a predetermined standard. For example, as shown in Figure 24, if the notification unit 103 estimates that the user's behavior history exceeds the standard of "20 seconds after the head is in the bathtub," it displays content CT61 as a warning screen.

[0317] <1-8-3. Example of display processing flow> Based on the above, an example of the display processing performed by the bathroom system 1 will now be explained using Figure 26. Figure 26 is a flowchart showing an example of the procedure for processing performed by the bathroom system. Although the bathroom system 1 is described as the processing unit, each process may be performed by any of the devices, such as the sensor unit 10 (radio wave sensor 10a, etc.) or the control unit 100B, depending on the device configuration included in the bathroom system 1.

[0318] Bathroom system 1 detects changes in the state of bathroom 2 (step S301). For example, bathroom system 1 detects changes in the state of bathroom 2 using radio wave sensor 10a. Bathroom system 1 stores the user's activity history in bathroom 2 (step S302). For example, bathroom system 1 registers (stores) the user's activity history in bathroom 2 in data storage unit 101.

[0319] The bathroom system 1 evaluates the user's behavioral history based on predetermined behavioral rules regarding the use of bathroom 2 (step S303). For example, the evaluation unit 112 of the control unit 100B evaluates the user's behavioral history based on predetermined behavioral rules regarding the use of bathroom 2.

[0320] Bathroom system 1 displays one or more of the following: elapsed time using the bathroom, usage time, activity history, and evaluation of the activity history (step S304). For example, notification unit 103 displays first display content, including the user's elapsed time using the bathroom, on terminal device DV2.

[0321] As described above, the bathroom system 1 can appropriately understand the user's behavior in bathroom 2 based on the user detected in bathroom 2. This allows the bathroom system 1 to provide new value based on the state detection within bathroom 2.

[0322] For example, when using radio wave sensors in bathroom 2, the focus is generally on detecting people who have fallen. On the other hand, bathroom system 1 detects the movements of people and the operating status of equipment in the bathroom, and enables the display of bathing status in real time or after bathing, thereby ensuring safe bathing. Furthermore, bathroom system 1 can also evaluate the quality of bathing and warn of dangers by determining whether predetermined rules and standards are being met. In this way, bathroom system 1 can provide new value based on the detection of conditions within the bathroom.

[0323] Further effects and modifications can be readily derived by those skilled in the art. Therefore, broader aspects of the present invention are not limited to the specific details and representative embodiments expressed and described above. Accordingly, various modifications are possible without departing from the spirit or scope of the overall concept of the invention as defined by the appended claims and their equivalents.

[0324] The embodiments and modifications described above may also have the following configurations, but are not limited to them. (1) A detection means for detecting users in the bathroom, Based on the detection results of the detection means, a display means is provided to display the elapsed time the user has used the bathroom, A bathroom system characterized by having the following features. (2) The aforementioned display means is The display shows the elapsed time of use of the bathroom, which includes at least one of the following: the time the user stays in the first area where the bathtub is provided, the time the user stays in the second area where the water dispenser is provided, or the time the water dispenser in the bathroom is used. The bathroom system according to (1), characterized in that (3) The bathroom is divided into multiple areas, and the display means displays the user's area of ​​stay within the bathroom by overlaying it on an area map of the bathroom. The bathroom system according to (1) or (2), characterized in that it is the same as described in (1) or (2). (4) The aforementioned bathroom is divided into a first area where a bathtub is provided and a second area where a water dispensing device is provided. The aforementioned display means is In the bathroom, based on the user's movement from the second area to the first area, the duration of stay in the first area is displayed, along with the total duration of stay in the bathroom. A bathroom system according to any one of (1) to (3), characterized by the above. (5) The aforementioned bathroom is divided into a first area where a bathtub is provided and a second area where a water dispensing device is provided. The aforementioned display means is In the bathroom, based on the user's movement from the first area to the second area, the duration of stay in the first area is displayed, as well as the duration of stay in the bathroom. A bathroom system according to any one of (1) to (4), characterized by the above. (6) The second region further includes a third region near the water discharge device, The display means updates the user's start time using the bathroom, or the elapsed time since the start of use, along with the time spent in the first area when the user is in the first area, and updates the usage time of the water dispenser when the user is using the water dispenser or when the user is in the third area. A bathroom system according to any one of (2) to (5), characterized by the above. (7) The system further comprises control means for controlling the display means based on user operation, The control means controls the switching of multiple display contents displayed on the display means based on the user operation. The aforementioned plurality of display contents include: a first display content that displays the time elapsed since the use of the bathroom along with an area map of the bathroom; and a second display content that displays the user's activity history within the bathroom. A bathroom system according to any one of (1) to (6), characterized by the above. (8) The system further comprises an evaluation means for evaluating the user's behavior history within the bathroom based on the detection results of the detection means, The plurality of contents further include a third display content that displays the evaluation results of the evaluation means. The bathroom system according to (7), characterized in that (9) The system further comprises a storage means for storing the user's behavior history in the bathroom, which is obtained based on the detection results of the aforementioned detection means. The evaluation means evaluates the user's behavioral history stored in the storage means based on predetermined behavioral rules regarding the use of the bathroom. The display means displays the evaluation results of the evaluation means. The bathroom system described in (8), characterized by the following: (10) The display means also serves as a notification means for notifying that the user's behavior history has deviated from the predetermined behavior rules. The bathroom system according to (9), characterized in that (11) The display means also serves as a notification means for notifying that the user's behavior history has exceeded a predetermined standard. A bathroom system according to any one of (1) to (10), characterized by the above. (12) The aforementioned display means is The evaluation means overlays evaluation target content, which indicates the users of the bathroom whose behavioral history will be evaluated based on predetermined behavioral rules, onto the area map of the bathroom. A bathroom system according to any one of (8) to (11), characterized by the above. (13) The aforementioned predetermined rules of conduct include multiple individual rules, The evaluation means determines an individual or overall bathing score for the user's behavioral history based on the individual rules. A bathroom system according to any one of (9) to (12), characterized by the above. (14) The detection means includes a radio wave sensor installed in the bathroom, which is formed by a plurality of panels, and detects the user's actions or location in the space within the bathroom, excluding the radio wave reflection area including the surface of the panels. A bathroom system according to any one of (1) to (13), characterized by the above. [Explanation of symbols]

[0325] 1 Bathroom System 2. Bathroom 2a~2d Side Panels 2e Floor Panel 2F Ceiling Panel 3. Changing room (adjacent room) 4 Bathtub 5. Bathroom counter 6. Shower equipment 6a Overhead shower (OH) 6b Hand shower (HS) 6c Spout (Faucet) 7 mirror 8 shower bars 8a Bar member (bar-shaped member) 8b Head holding section 9 Mike 10 Sensor section 10a Radio wave sensor 11 cabinets 12 antennas 100, 100A Control Unit (Control Device) 101 Data Storage Unit 102 Input section 103 Hochi Department 104 Lighting 105a Water temperature control unit 105b Water volume control unit 106 Bathtub water temperature control unit 107 Shoulder and lower back bath control unit 108 Air conditioning 109 Ventilation fan 110 State Estimation Unit 111 Judgment section 112 Evaluation Department 113 Rule Setting Section 114 Notification Settings Section 115 Display Control Unit 116 Personal Identification Section 117 Anomaly estimation section

Claims

1. A detection means for detecting users in the bathroom, Based on the detection results of the aforementioned detection means, a display means is provided to display the elapsed time the user has used the bathroom, A bathroom system characterized by having the following features.

2. The aforementioned display means is The display shows the elapsed time of use of the bathroom, which includes at least one of the time the user stays in the first area where the bathtub is provided, the time the user stays in the second area where the water dispenser is provided, or the time the water dispenser in the bathroom is used. The bathroom system according to claim 1.

3. The bathroom is divided into multiple areas, and the display means displays the user's area of ​​stay within the bathroom by overlaying it on an area map of the bathroom. The bathroom system according to claim 1.

4. The bathroom is divided into a first area where a bathtub is provided and a second area where a water dispensing device is provided. The aforementioned display means is In the bathroom, based on the user's movement from the second area to the first area, the duration of stay in the first area is displayed, as well as the total duration of stay in the bathroom. The bathroom system according to claim 1.

5. The bathroom is divided into a first area where a bathtub is provided and a second area where a water dispensing device is provided. The aforementioned display means is Based on the user's movement from the first area to the second area within the bathroom, the duration of stay in the first area is displayed, as well as the total duration of stay within the bathroom. The bathroom system according to claim 1.

6. The second region further includes a third region near the water discharge device, The display means updates the user's start time using the bathroom, or the elapsed time since the start of use, along with the time spent in the first area when the user is in the first area, and updates the usage time of the water dispenser when the user is using the water dispenser or when the user is in the third area. The bathroom system according to claim 4 or 5, characterized in that it is the same as described in claim 5.

7. The system further comprises control means for controlling the display means based on user operation, The control means controls the switching of multiple display contents displayed on the display means based on the user operation. The aforementioned plurality of display contents include: a first display content that displays the time elapsed since the use of the bathroom along with an area map of the bathroom; and a second display content that displays the user's activity history within the bathroom. The bathroom system according to claim 1.

8. The system further includes an evaluation means for evaluating the user's behavior history within the bathroom based on the detection results of the detection means, The plurality of display contents further include a third display content that displays the evaluation results of the evaluation means. The bathroom system according to feature 7.

9. The system further comprises a storage means for storing the user's behavior history in the bathroom, which is obtained based on the detection results of the aforementioned detection means. The evaluation means evaluates the user's behavioral history stored in the storage means based on predetermined behavioral rules regarding the use of the bathroom. The display means displays the evaluation results of the evaluation means. The bathroom system according to claim 8, characterized in that

10. The display means also serves as a notification means for notifying that the user's behavior history has deviated from the predetermined behavior rules. The bathroom system according to feature 9.

11. The display means also serves as a notification means for notifying that the user's behavior history has exceeded a predetermined standard. The bathroom system according to claim 1.

12. The aforementioned display means is The evaluation means overlays evaluation target content, which indicates the users of the bathroom whose behavioral history will be evaluated based on predetermined behavioral rules, onto the area map of the bathroom. The bathroom system according to feature 9.

13. The aforementioned predetermined rules of conduct include multiple individual rules, The evaluation means determines an individual or overall bathing score for the user's behavioral history based on the individual rules. The bathroom system according to feature 9.

14. The detection means includes a radio wave sensor installed in the bathroom, which is formed by a plurality of panels, and detects the user's actions or location in the space within the bathroom, excluding the radio wave reflection area including the surface of the panels. The bathroom system according to feature 9.

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