Bathroom heating and drying system

Abstract

To provide a bathroom heating and drying system by which it is detected and reported that there is a child in a bathroom, or attention is called easily.SOLUTION: A bathroom heating and drying system 1 comprises an air injection section 11, a heating section 12, an air exhaustion section 13, a human detection section 15, a distance measuring section 21 and a report control section 20. The air injection section 11 injects air into a bathroom 4. The heating section 12 heats air injected by the air injection section 11. The air exhaustion section 13 exhausts air in the bathroom 4. The human detection section 15 detects the presence / absence of a human in the bathroom 4. The distance measuring section 21 measures a height of an object in the bathroom 4 from a bathroom floor surface 410. In a case where a report condition is satisfied, report information is generated and reported by the report control section 20. The report condition is that a human is detected by the human detection section 15 and that a distance measured by the distance measuring section 21 is equal to or less than a predetermined value.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a bathroom heating and drying system. [Background technology]

[0002] Patent Document 1 discloses a conventional bathroom heater / dryer. This bathroom heater / dryer is equipped with a human detection means, which automatically stops the operation of the ventilation means when it detects that a person is taking a bath, and automatically resumes the operation of the ventilation means when it detects that the person has left the bath. An infrared sensor or an illuminance sensor is provided as the human detection means. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-57474 A Summary of the Invention [Problem to be solved by the invention]

[0004] Although the conventional bathroom heater / dryer described above can detect the presence of a person in the bathroom, it cannot distinguish whether the person in the bathroom is an adult or a child, etc. Therefore, it is difficult to warn a child in the bathroom.

[0005] The problem to be solved by the present invention is to propose a bathroom heating and drying system that can easily detect the presence of a child in the bathroom and provide notification or warning. [Means for solving the problem]

[0006] The bathroom heating and drying system of claim 1 comprises an air ejection unit, a heating unit, an exhaust unit, a human detection unit, a distance measurement unit, and a notification control unit. The air ejection unit ejects air into the bathroom. The heating unit heats the air ejected by the air ejection unit. The exhaust unit exhausts the air from the bathroom. The human detection unit detects the presence or absence of a person in the bathroom. The distance measurement unit measures the height of an object in the bathroom from the bathroom floor. The notification control unit generates and notifies notification information when a notification condition is met. The notification condition is that a person is detected by the human detection unit and the distance measured by the distance measurement unit is less than or equal to a predetermined value.

[0007] The bathroom heating and drying system of claim 2 comprises an air ejection unit, a heating unit, an exhaust unit, a human detection unit, a distance measurement unit, a temperature distribution detection unit, and a notification control unit. The air ejection unit ejects air into the bathroom. The heating unit heats the air ejected by the air ejection unit. The exhaust unit exhausts the air from the bathroom. The human detection unit detects the presence or absence of a human in the bathroom. The distance measurement unit measures the height of an object in the bathroom from the bathroom floor. The temperature distribution detection unit detects the temperature distribution in the bathroom. The notification control unit generates and notifies notification information when a notification condition is met. The notification condition is that a human is detected by the human detection unit, the distance measured by the distance measurement unit is equal to or less than a predetermined value, and the temperature distribution detected by the temperature distribution detection unit includes a portion having a temperature equal to or higher than a predetermined temperature.

[0008] The invention according to claim 3 is an invention dependent on claim 1 or 2, wherein the bathroom heating and drying system further includes a plug opening / closing detection unit that detects whether a plug of a bathtub installed in the bathroom is opened or closed. When the detection result by the plug opening / closing detection unit is closed, the notification control unit notifies first notification information as the notification information. When the detection result is open, the notification control unit notifies second notification information as the notification information.

[0009] The invention according to claim 4 is an invention dependent on claim 1 or 2, wherein the bathroom heating and drying system further includes a water level detection unit that detects the water level of a bathtub installed in the bathroom. The notification control unit notifies first notification information as the notification information when the detection result by the water level detection unit satisfies a predetermined condition. The notification control unit notifies second notification information as the notification information when the detection result does not satisfy the predetermined condition. Effect of the Invention

[0010] In the invention of claim 1, when the notification conditions are met, i.e., when it is possible to determine that a child is in the bathroom, the notification control unit generates and notifies notification information, thereby notifying an adult that a child is in the bathroom and alerting them.

[0011] In the invention according to claim 2, when the notification condition is satisfied, that is, when it is considered that a child is in the bathroom, the notification control unit generates and notifies notification information, thereby notifying adults that a child is in the bathroom and alerting them. At this time, it is possible to distinguish between a person and an object (especially an object hung out to dry in the bathroom) based on the detection result of the temperature distribution detection unit, and to perform more detailed notifications (alerts).

[0012] In the invention according to claim 3, the notification information can be changed based on the detection result of the plug open / close detection section, making it possible to perform more detailed notifications (alerts).

[0013] According to the invention of claim 4, the notification information can be changed based on the detection result of the water level detection unit, making it possible to perform more detailed notifications (alerts). [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a cross-sectional view of a bathroom in which a bathroom heating and drying system according to a first embodiment of the present invention is installed. [Diagram 2] FIG. 2 is a block diagram of the bathroom heating and drying system. [Diagram 3]FIG. 3 is a flow diagram showing a flow of operations by a notification control unit in the bathroom heating and drying system. [Figure 4] FIG. 4 is a block diagram of the bathroom heating and drying system of the second embodiment. [Diagram 5] FIG. 5 is a flow diagram showing a flow of a notification control unit in the bathroom heating and drying system. [Figure 6] FIG. 6 is a block diagram of a bathroom heating and drying system according to the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] BEST MODE FOR CARRYING OUT THE DISCLOSURE A bathroom heating and drying system according to the present invention will now be described with reference to the drawings.

[0016] A bathroom heating and drying system 1 according to a first embodiment will be described with reference to Figures 1 to 3. Bathroom heating and drying system 1 includes bathroom heating and drying apparatus 3, and first bathroom heating and drying apparatus 3 will be described.

[0017] As shown in Figure 1, bathroom heating and drying device 3 comprises a casing 30 installed on ceiling 40 of bathroom 4, and an operating device 17 (see Figure 2) installed outside bathroom 4. Operating device 17 is installed, for example, in a changing room. Casing 30 is installed on ceiling 40 of bathroom 4 at a position above bathtub 42.

[0018] Casing 30 contains louvers 31, louver motor 311, blower fan 32, heat exchanger 33, hot water pipe 331, and exhaust fan 34. Hot water pipe 331 is connected to heat exchanger 33. Hot water pipe 331 is configured to circulate hot water from a heat source unit (not shown) installed outside bathroom 4. Hot water is supplied to heat exchanger 33 through hot water pipe 331, and heat exchanger 33 performs heat exchange for heating in air passage 35 inside casing 30.

[0019] Casing 30 has intake port 301 and exhaust port 302, which communicate with air passage 35, on its underside so as to be exposed inside bathroom 4. In other words, exhaust port 302 is located on ceiling 40 of bathroom 4. Fan 32 and heat exchanger 33 are located in air passage 35. Louver 31 is a movable louver installed at exhaust port 302.

[0020] Each device in the casing 30 is controlled by a control unit 10 shown in Fig. 2. The control unit 10 has a computer including a processor such as a CPU (Central Processing Unit) and a memory, and performs various controls by executing appropriate programs. The control unit 10 is incorporated in the casing 30. The control unit 10 is capable of communicating with an operating device 17.

[0021] Control unit 10 drives fan 32 based on a signal from operating device 17 and supplies hot water from the heat source unit to heat exchanger 33, thereby supplying hot air into bathroom 4 through louver 31. The orientation of louver 31 can be freely changed within a predetermined range by driving louver motor 311. Louver motor 311 is controlled by control unit 10.

[0022] As shown in Fig. 1, exhaust fan 34 is installed in exhaust path 36 that communicates with air path 35 of casing 30. Control unit 10 drives exhaust fan 34 based on a signal from operating device 17, and can exhaust the air within bathroom 4 to the outside through exhaust path 36.

[0023] The casing 30 is provided with a mist nozzle 37, a water supply passage 371, and a flow rate adjustment valve .

[0024] Mist nozzle 37 is installed on the underside of casing 30 so that its angle can be freely changed and exposed inside bathroom 4. Water supply passage 371 is a water passage that connects mist nozzle 37 to a water source (not shown) that supplies tap water. Inside casing 30, mist nozzle 37 is connected in communication with the downstream end of water supply passage 371.

[0025] Next, we will explain bathroom heating and drying system 1. As shown in Figure 2, bathroom heating and drying system 1 comprises air ejection section 11, heating section 12, exhaust section 13, air direction adjustment section 14, human detection section 15, distance measurement section 21, plug opening / closing detection section 22, and notification control section 20.

[0026] The air ejection section 11 is composed of a fan 32 and ejects air into the bathroom 4 from an outlet 302.

[0027] The heating unit 12 is composed of a heat exchanger 33, a hot water pipe 331, and a heat source device, and heats the air ejected by the air ejection unit 11.

[0028] Exhaust section 13 is constituted by exhaust fan 34, and expels the air drawn into bathroom 4 through suction port 301 to the outside of bathroom 4 (outdoors).

[0029] The airflow direction adjustment unit 14 is composed of the louver 31 and the louver motor 311, and changes the direction of the air ejected from the ejection port 302. In the first embodiment, the direction of the air ejected from the ejection port 302 can rotate within a range of a predetermined angle (e.g., 45°) in the direction in which the washing area 41 and the bathtub 42 are arranged, centering on the vertical downward direction. The area through which the air ejected from the ejection port 302 passes is defined as a dried item placement area 43. Specifically, the dried item placement area 43 includes an area directly below the ejection port 302, and has a predetermined width in the direction in which the washing area 41 and the bathtub 42 are arranged. The dried item placement area 43 is an area in which dried items 5, such as wet clothes, are placed. The airflow direction adjustment unit 14 does not necessarily have to be provided.

[0030] The human detection unit 15 detects the presence or absence of a person in the bathroom 4. The human detection unit 15 is configured with a so-called human presence sensor. As the human presence sensor, various conventionally known sensors such as infrared type and ultrasonic type can be appropriately used, and the type is not particularly limited, and detailed description thereof will be omitted.

[0031] The distance measuring unit 21 measures the height of an object in the bathroom 4 from the bathroom floor surface 410. The distance measuring unit 21 is a so-called ToF camera (Time of Flight) or the like, and is provided, for example, on the bathroom ceiling surface 400. The distance measuring unit 21 can measure the distance from the bathroom ceiling surface 400 to each part in a two-dimensional area in a plan view of the bathroom 4. When the distance from the bathroom ceiling surface 400 to the object is known, the height of the object from the bathroom floor surface 410 is measured by subtracting the distance from the bathroom ceiling surface 400 to the object from the distance from the bathroom floor surface 410 to the bathroom ceiling surface 400. As such a distance measuring unit 21, various known distance measuring sensors can be appropriately used, and the method is not particularly limited, and detailed description will be omitted.

[0032] In addition, the distance measurement results obtained by the distance measuring unit 21 when there are no people or objects (excluding installations in the bathroom 4, such as the bathtub 42) in the bathroom 4 are used as reference data, and subsequent measurement data by the distance measuring unit 21 is compared with the reference data to recognize the presence of an object in the area where a change has occurred.

[0033] Plug opening / closing detection unit 22 detects the opening and closing of plug 421 of bathtub 42 installed in bathroom 4. A magnetic sensor has conventionally been used to detect the opening and closing of plug 421 of bathtub 42, and this magnetic sensor is preferably used as plug opening / closing detection unit 22, but the type of sensor is not particularly limited and detailed description will be omitted.

[0034] We will now explain the various operations of bathroom heating and drying apparatus 3. First, we will explain bathroom heating operation. In bathroom heating operation, control unit 10 drives air ejection unit 11 and heating unit 12 to eject heated air (hot air) into bathroom 4.

[0035] Next, the bathroom drying operation will be described. In the bathroom drying operation, control unit 10 drives air ejection unit 11 and heating unit 12 to eject heated air (hot air) into bathroom 4. Furthermore, control unit 10 controls air direction adjustment unit 14 to change the air direction.

[0036] Next, the bathroom ventilation operation will be described. In the bathroom ventilation operation, control unit 10 drives exhaust fan 34, but does not drive air ejection unit 11, heating unit 12, air direction adjustment unit 14, or mist nozzle 37. Fan 32 may be driven together with exhaust fan 34.

[0037] Next, the fan operation will be described. In the fan operation, control unit 10 drives air ejection unit 11 to eject air into bathroom 4.

[0038] Next, the mist spraying operation will be described. In the mist spraying operation, control unit 10 drives air ejection unit 11 and also drives mist nozzle 37 to spray mist into bathroom 4. At this time, heating unit 12 is not particularly driven.

[0039] Next, the mist sauna operation will be described. In the mist sauna operation, the control unit 10 drives the air ejection unit 11, the heating unit 12, and the mist nozzle 37 to spray mist into the bathroom 4.

[0040] Bathroom heating and drying system 1 can be connected to communications network 6. Specifically, control unit 10 has a communications unit 18, and is connected to communications network 6. Communications network 6 may include the Internet, and may be made up of not only a network conforming to a single communications protocol, but also multiple networks conforming to different communications protocols. The communications protocol may be selected from a variety of well-known wired and wireless communications standards. Communications network 6 may include data communications devices such as a repeater hub, a switching hub, a bridge, a gateway, and a router.

[0041] Bathroom heating and drying system 1 is also configured to be able to communicate with terminal device 7 via communications network 6. Terminal device 7 is used to display information from bathroom heating and drying system 1 via communications network 6. Terminal device 7 can be realized as a desktop computer, laptop computer, or a mobile terminal (smartphone, tablet terminal, wearable terminal, etc.). In the first embodiment, terminal device 7 consisting of a smartphone is used to display information from bathroom heating and drying system 1. In this case, application software (app) for displaying information from bathroom heating and drying system 1 is downloaded from server 8 via communications network 6 and installed on terminal device 7, although the app may be pre-installed.

[0042] A method for determining whether or not a child is in the bathroom 4 and notifying the notification information will be described below with reference to Fig. 3. Such a determination is made by the notification control unit 20.

[0043] The notification control unit 20 generates notification information and notifies the user when the notification conditions are met. In other words, the determination as to whether or not there is a child in the bathroom 4 is a determination as to whether or not the notification conditions are met. The notification condition in the first embodiment is that a person is detected by the human detection unit 15 and the distance measured by the distance measurement unit 21 is equal to or less than a predetermined value. The notification control unit 20 is provided in the control unit 10 as one function of the control unit 10, but may be provided separately from the control unit 10.

[0044] As shown in Fig. 3, when the flow by notification control unit 20 is started, in step S1, the detection result of human detection unit 15 is read and it is determined whether or not there is a person in bathroom 4. If it is determined in step S1 that there is a person in bathroom 4, the flow proceeds to step S2. If it is determined in step S1 that there is no person in bathroom 4, there is no particular need to notify notification information, so the flow ends.

[0045] In step S2, the measurement results of the distance measuring unit 21 are read, and it is determined whether the height from the bathroom floor 410 of the object (person) recognized to be in the bathroom 4 is equal to or less than a predetermined value. In the first embodiment, the height from the bathroom 4 floor to the bathroom ceiling 400 is 230 cm, and a person who is 120 cm tall or less is considered to be a child. Therefore, in step S2, if the distance from the bathroom ceiling 400 to the person's head exceeds 110 cm, the person is determined to be a child and the process moves to step S3. In step S2, if the distance from the bathroom ceiling 400 to the person's head is 110 cm or less, the person is determined to be an adult, and since there is no need to notify any particular notification information, the flow ends.

[0046] The process proceeds to step S3 when it is determined in step S1 that there is a person in bathroom 4, and when it is determined in step S2 that the person is a child because their height from bathroom floor 410 is 120 cm or less, and the notification conditions are met. In step S3, the detection result of plug opening / closing detection unit 22 is read and it is determined whether plug 421 of bathtub 42 is open or closed. If it is determined to be closed, the process proceeds to step S4, and if it is determined to be open, the process proceeds to step S5.

[0047] In step S4, the first notification information is notified as the notification information. In this case, because it was determined in step S3 that plug 421 is closed, if bathtub 42 is filled with hot water, there is a risk of a child drowning. Therefore, the first notification information is set to an "alarm," which is a high warning level. Specifically, notification control unit 20 issues an alert by sending image data and audio data as the first notification information via communications network 6 to terminal device 7 of an adult who is a user of bathroom heating and drying system 1. The flow then ends.

[0048] In step S5, the second notification information is notified as the notification information. In this case, since it is determined in step S3 that the tap 421 is open, the bathtub 42 is not filled with hot water. Therefore, the second notification information is set to a "caution" with a lower warning level than an "alert" because there is no immediate risk of the child drowning, but there is a risk of drowning if the bathtub 42 is filled with hot water. Specifically, as in step S4, the notification control unit 20 issues a notification by transmitting image data or audio data as the second notification information to the terminal device 7 via the communication network 6. Then, the flow ends.

[0049] A series of flows from the start to the end of a flow is executed periodically, as needed, when requested, or when some starting condition is satisfied, but the timing of execution can be set appropriately and is not particularly limited.

[0050] In the first embodiment, when the notification conditions are met, i.e., when it is possible to determine that a child is in the bathroom 4, the notification control unit 20 generates and notifies notification information, thereby notifying an adult that a child is in the bathroom 4 and alerting them.

[0051] Furthermore, by notifying the first notification information or the second notification information based on the detection result of the plug opening / closing detection unit 22, more detailed notification (alert) can be performed.

[0052] In particular, if the bathtub 42 is not provided with a water level detection unit, the detection results of the plug opening / closing detection unit 22 can be used to issue a separate warning level for the risk of a child drowning, an "alert," with a high warning level, or a "warning," with a low warning level, allowing for more detailed notifications (alerts).

[0053] Furthermore, a circulation adapter (not shown) placed at the bottom of the side wall of bathtub 42 or a water pressure sensor attached to its piping is widely used as a water level detector for bathtub 42. However, a water pressure sensor attached to such a circulation adapter cannot detect a water level lower than the circulation adapter in bathtub 42 (for example, a water level of 10 cm or less). Even in such a case, if the detection result of plug open / close detector 22 is closed, it is assumed that bathtub 42 is filled with hot water regardless of whether or not there is actually hot water in bathtub 42, and a high warning level "alarm" is issued, thereby preventing children from drowning.

[0054] Next, bathroom heating and drying system 1 according to the second embodiment will be described with reference to Figures 4 and 5. Bathroom heating and drying system 1 according to the second embodiment is largely the same as bathroom heating and drying system 1 according to the first embodiment. Therefore, explanations that overlap with the first embodiment will be omitted, and mainly differences will be described.

[0055] As shown in Figure 4, bathroom heating and drying system 1 includes a temperature distribution detection unit 16 in addition to the configuration in the first embodiment. Temperature distribution detection unit 16 detects the temperature distribution in bathroom 4, and mainly detects the temperature distribution of the drying goods 5 placed in the drying goods placement area 43. In the first embodiment, temperature distribution detection unit 16 is configured by so-called thermography. Temperature distribution detection unit 16 has an imaging unit, which is placed in either the ceiling 40 or a side wall of bathroom 4 and can image the entire area of ​​bathroom 4. Note that the imaging unit does not have to be able to image the entire area of ​​bathroom 4, and may not be able to image only a part of bathroom 4.

[0056] A method for determining whether or not a child is in bathroom 4 and for notifying notification information will be described below with reference to FIG.

[0057] When the flow by the notification control unit 20 is started, in step S11, the detection result of the human detection unit 15 is read and it is determined whether or not there is a person in the bathroom 4. If it is determined in step S11 that there is a person in the bathroom 4, the process proceeds to step S12. If it is determined in step S11 that there is no person in the bathroom 4, there is no particular need to notify notification information, so the flow ends.

[0058] In step S12, the measurement results of distance measuring unit 21 are read, and it is determined whether the height of the object (person) recognized to be in bathroom 4 from bathroom floor 410 is 120 cm or less, and if it is 120 cm or less, it is determined to be a child and the process proceeds to step S13. Also, in step S12, if the height from bathroom floor 410 is more than 120 cm, it is determined to be an adult, and since there is no need to notify any particular notification information, the flow ends.

[0059] In step S13, it is determined whether bathroom heating operation or bathroom drying operation is being performed. If it is determined that bathroom heating operation or bathroom drying operation is being performed, the process proceeds to step S14 as there is a high possibility that the item to be dried 5 is inside the bathroom 4, and if it is determined that bathroom heating operation or bathroom drying operation is not being performed, the process proceeds to step S21.

[0060] In step S14, the temperature distribution is detected by the temperature distribution detection unit 16, and the process proceeds to step S15.

[0061] In step S15, the bathroom heating operation or bathroom drying operation is stopped, and the fan operation is started. When the fan operation is performed, if there is a person in bathroom 4, the temperature does not drop due to the fan, but if there is something to dry 5 in bathroom 4, the temperature does drop due to the fan. Then, the process proceeds to step S16.

[0062] In step S16, after a certain period of time has elapsed, the temperature distribution is detected by the temperature distribution detection unit 16, and the process proceeds to step S17.

[0063] In step S17, the temperature distribution detected in step S14 is compared with the temperature distribution detected in step S16. If it is determined that there is no part where the temperature has dropped, the drying object 5 is not in the bathroom 4, and the object measured by the distance measuring unit 21 at a height of 120 cm or less from the bathroom floor 410 is determined to be a person (i.e., a child), and the process proceeds to step S18.

[0064] In step S18, the detection result of plug opening / closing detection unit 22 is read, and it is determined whether plug 421 of bathtub 42 is open or closed. If it is determined to be closed, the process proceeds to step S19, and if it is determined to be open, the process proceeds to step S20.

[0065] In step S19, the first notification information is notified as the notification information. In this case, if the bathtub 42 is filled with hot water, there is a risk of a child drowning, so a high warning level "alarm" is issued as the first notification information, and the flow ends.

[0066] In step S20, the second notification information is notified as the notification information. In this case, bathtub 42 is not filled with hot water, and there is no risk of a child drowning. However, there is a risk that a child may get into bathtub 42 and fall and be injured. Therefore, a "caution" with a lower warning level than an "alert" is issued, and the flow ends.

[0067] If it is determined in step S13 that the bathroom heating operation or the bathroom drying operation is not being performed, the process proceeds to step S21, in which temperature distribution detection unit 16 detects the temperature distribution, and the process proceeds to step S22.

[0068] In step S22, it is determined whether the temperature distribution detected in step S21 includes any part having a temperature equal to or higher than a predetermined temperature (30°C in this embodiment), and if it is determined that there is such a part, it is determined that there is a child in the bathroom 4 and the process proceeds to step S18.

[0069] If it is determined in step S22 that the temperature distribution detected in step S21 does not include any portion having a temperature equal to or higher than the predetermined temperature, it is determined that there is no person in bathroom 4 and the process proceeds to step S18.

[0070] Furthermore, if it is determined in step S17 that there is an area where the temperature has dropped, then it is highly likely that an object whose height from the bathroom floor 410 measured by the distance measuring unit 21 is 120 cm or less is an object (i.e., dried goods 5); however, since there is also a possibility that there is a person in an area where the temperature has not dropped, the process proceeds to step S22 to be on the safe side, and it is determined whether or not there is a person in the bathroom 4.

[0071] In the second embodiment, in addition to the effects of the first embodiment, it is possible to provide even more detailed notifications. That is, the results of temperature distribution detection by temperature distribution detection unit 16 are used to determine whether it is a person or an object (particularly object 5) in bathroom 4, and no notification is required if it is an object in bathroom 4. In particular, by using temperature distribution detection unit 16, which is widely provided in bathroom heating and drying device 3, bathroom heating and drying system 1 can be easily constructed while suppressing increases in manufacturing costs.

[0072] Next, bathroom heating and drying system 1 according to a third embodiment will be described with reference to Figure 6. Bathroom heating and drying system 1 according to the third embodiment is largely the same as bathroom heating and drying system 1 according to the second embodiment. Therefore, explanations that overlap with the second embodiment will be omitted, and mainly differences will be described.

[0073] In the third embodiment, bathroom heating and drying system 1 is equipped with a water level detector 23 instead of the tap open / close detector 22 in the second embodiment. Water level detector 23 detects the water level in bathtub 42 installed in bathroom 4. Water level detector 23 can be any of a variety of conventionally known sensors, including a water pressure sensor provided in the circulation adapter or the like mentioned above, a type that uses temperature change, a type that uses electrical resistance change, a type that uses capacitance change, a type that uses light, a type that uses ultrasonic waves, a type that uses electromagnetic waves, etc.; there are no particular limitations on the type, and detailed description of the type will be omitted.

[0074] By using the water level detection unit 23, if the water level in the bathtub 42 is below a predetermined level, it is possible to choose not to issue a notification since there is no risk of the child drowning, allowing for more detailed notifications.

[0075] As a modified example, the notification condition may be that a person is detected by the person detection unit 15, the distance measured by the distance measurement unit 21 is equal to or less than a predetermined value, and the temperature distribution detected by the temperature distribution detection unit 16 has a portion having a temperature equal to or higher than a predetermined temperature. In this way, if the detection result of the temperature distribution detection unit 16 determines that there are only objects in the bathroom 4, it is not necessary to issue a notification, and more detailed notifications (alerts) can be issued.

[0076] In addition, the predetermined value measured by the distance measuring unit 21 does not have to be 120 cm. In other words, the threshold value for determining whether or not a person is a child does not have to be 120 cm, and the threshold value (predetermined value) can be set appropriately to 100 cm, 110 cm, 130 cm, 140 cm, 150 cm, etc.

[0077] Furthermore, the predetermined temperature detected by the temperature distribution detection unit 16 does not have to be 30° C. In other words, the threshold value for determining whether or not there is a human being does not have to be 30° C., and the threshold value (predetermined temperature) can be set appropriately to 28° C., 32° C., 35° C., etc. [Explanation of symbols]

[0078] 1 Bathroom heating and drying system 10 Control section 11 Air outlet 12 Heating section 13 Exhaust section 14 Wind direction adjustment section 15 Human detection unit 16 Temperature distribution detection unit 17 Controller 18 Communications Department 20 Notification control section 21 Ranging section 22 Cap opening / closing detector 23 Water level detection unit 3 Bathroom heating and drying equipment 30 Casing 301 Intake port 302 spout 31 Louver 311 Louver motor 32 Fans 33 Heat exchanger 331 Hot water pipe 34 Exhaust fan 35 Wind path 36 Exhaust duct 37 Mist Nozzle 371 Water supply channel 38 Flow Control Valve 4 Bathroom 40 Ceiling 400 Bathroom ceiling surface 41 Washing area 410 Bathroom floor surface 42 Bathtub 421 Stopper 43 Dry matter placement area 5 Dry matter 6. Communication Network 7 Terminal Equipment 8 Server

Claims

1. An air outlet that blows air into the bathroom; A heating unit that heats the air ejected by the air ejection unit; An exhaust section that exhausts air from inside the bathroom; A human detection unit that detects the presence or absence of a person in the bathroom; a distance measuring unit for measuring the height of an object in the bathroom from the bathroom floor; A notification control unit that generates and notifies notification information when a notification condition is satisfied, The notification condition is that a person is detected by the person detection unit and the height measured by the distance measurement unit is equal to or less than a predetermined value. Bathroom heating and drying system.

2. An air outlet that blows air into the bathroom; A heating unit that heats the air ejected by the air ejection unit; An exhaust section that exhausts air from inside the bathroom; A human detection unit that detects the presence or absence of a person in the bathroom; a distance measuring unit for measuring the height of an object in the bathroom from the bathroom floor; A temperature distribution detection unit that detects the temperature distribution in the bathroom; A notification control unit that generates and notifies notification information when a notification condition is satisfied, The notification condition is that a person is detected by the person detection unit, the height measured by the distance measurement unit is equal to or less than a predetermined value, and the temperature distribution detected by the temperature distribution detection unit has a portion having a temperature equal to or higher than a predetermined temperature. Bathroom heating and drying system.

3. The bathtub may further include a bathtub plug detection unit that detects whether a bathtub plug is opened or closed. The notification control unit: When the detection result by the plug open / close detection unit is closed, a first notification information is notified as the notification information; If the detection result is open, second notification information is notified as the notification information. The bathroom heating and drying system according to claim 1 or 2.

4. The bathtub may further include a water level detector that detects the water level of a bathtub installed in the bathroom. The notification control unit: When a detection result by the water level detection unit satisfies a predetermined condition, first notification information is notified as the notification information; If the detection result does not satisfy the predetermined condition, second notification information is notified as the notification information. The bathroom heating and drying system according to claim 1 or 2.

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