JP6760164B2 - Warning system and hot water supply system - Google Patents

Description

The present invention relates to an alarm system and a hot water supply system.

A system has been proposed that detects an abnormality of a bather in a bathtub and issues an alarm to a kitchen remote controller or the like. In the water heater disclosed in Patent Document 1 below, an abnormality of a bather in a bathtub is detected by a motion sensor provided in a bathroom remote controller.

Japanese Unexamined Patent Publication No. 2015-200421

The viewing angle of the motion sensor is limited. Therefore, the motion sensor provided in the bathroom remote controller may not be able to detect an abnormality of the bather in the bathtub. For example, if the bathroom remote controller is attached to the wall along the longitudinal direction of the bathtub, a part of the inside of the bathtub may be outside the viewing angle of the motion sensor. If a bather who has fallen into an abnormality in the bathtub is outside the viewing angle of the motion sensor, the abnormality of the bather cannot be detected. In addition, depending on the mounting position of the bathroom remote controller, a blind spot of the motion sensor may be generated by being blocked by the side wall of the bathtub, and it may not be possible to detect a bather lying down in the bathtub.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an alarm system capable of reliably detecting an abnormality of a bather and a hot water supply system including the alarm system. To do.

The alarm system according to the present invention has an alarm means for issuing an alarm, and is based on a signal of at least one remote control device for remotely operating a hot water supply device and a person detection sensor provided in a bathroom device installed on the ceiling of the bathroom. In an alarm system that includes an abnormality detecting means for detecting an abnormality of a bather in a bathroom tub and an alarm is issued by an alarm means of the remote control device when an abnormality of the bather is detected , the remote control device is used. , A bathroom remote control installed in the bathroom and a second remote control installed in a place other than the bathroom, and each of the bathroom remote control and the second remote control provides a means for receiving an alarm release operation, which is a user operation for canceling the alarm. In preparation, when an alarm release operation is performed on the bathroom remote control, the alarms of both the bathroom remote control and the second remote control are stopped, the alarm release operation is performed on the second remote control, and the bathroom remote control is used. If the alarm release operation is not performed, the alarm of the second remote control is stopped and the alarm of the bathroom remote control is not stopped .
Further, the alarm system according to the present invention has an alarm means for issuing an alarm, and a signal of at least one remote control device for remotely operating the hot water supply device and a person detection sensor provided in the bathroom device installed on the ceiling of the bathroom. In an alarm system that includes an abnormality detecting means for detecting an abnormality of a bather in a bathtub in a bathroom based on the above, and issues an alarm by an alarm means of a remote control device when an abnormality of a bather is detected. It further provides a means for detecting whether or not the drain plug of the bathtub is open, and disables the function of detecting an abnormality of the bather when the drain plug of the bathtub is open.
Further, the alarm system according to the present invention has an alarm means for issuing an alarm, a signal of at least one remote control device for remotely operating the hot water supply device, and a signal of a person detection sensor provided in the bathroom device installed on the ceiling of the bathroom. In an alarm system that is provided with an abnormality detecting means for detecting an abnormality of a bather in a bathroom tub based on the above, and issues an alarm by an alarm means of a remote control device when an abnormality of a bather is detected, a remote control is provided. The device includes a bathroom remote control installed in the bathroom, the bathroom remote control is equipped with a second person detection sensor, and the abnormality detection means is a second person detection sensor when the signal of the person detection sensor of the bathroom equipment is not available. It detects abnormalities in the bather based on the signal.
The hot water supply system according to the present invention includes the hot water supply device and the alarm system.

According to the present invention, it is possible to reliably detect an abnormality in a bather.

It is a figure which shows the hot water supply system by Embodiment 1. FIG. It is a flowchart which shows the process in Embodiment 1.

Hereinafter, embodiments will be described with reference to the drawings. Common or corresponding elements in the drawings are designated by the same reference numerals to simplify or omit duplicate description.

Embodiment 1.
FIG. 1 is a diagram showing a hot water supply system 35 according to the first embodiment. In this embodiment, an example in which the hot water supply system 35 includes an alarm system will be described. The alarm system detects an abnormality in the bather in the bathtub 30 of the bathroom and issues an alarm. The "abnormality of the bather" includes, for example, a state in which the bather's consciousness level is lowered due to drowning or an acute illness. As shown in FIG. 1, the hot water supply system 35 of the present embodiment includes a tank unit 33, an HP unit 7 that uses a heat pump cycle, a communication device 44, a kitchen remote controller 48, and a bathroom remote controller 49. The HP unit 7 and the tank unit 33 constituting the hot water supply device are connected to each other via an HP going pipe 14, an HP returning pipe 15, and an electric wiring (not shown). The control device 36 is built in the tank unit 33. The operation of various valves, pumps, etc. included in the tank unit 33 and the HP unit 7 is controlled by the control device 36 electrically connected to them.

The kitchen remote controller 48 and the bathroom remote controller 49 are examples of remote controller devices for remotely controlling the hot water supply device. Each of the kitchen remote controller 48 and the bathroom remote controller 49 has a function of accepting a user's operation regarding a driving operation command and a change of a set value. The kitchen remote controller 48 is installed in the kitchen or the dining room. The bathroom remote controller 49 is installed in a bathroom with a bathtub 30. Each of the kitchen remote controller 48 and the bathroom remote controller 49 can perform bidirectional data communication with the control device 36 by wire or wirelessly. Each of the kitchen remote controller 48 and the bathroom remote controller 49 includes, for example, a display unit such as a liquid crystal display panel or an organic EL display panel, an operation unit such as a switch operated by a user, a speaker, a microphone, and the like. Each of the kitchen remote controller 48 and the bathroom remote controller 49 can notify the user of information such as the status of the hot water supply system 35 by the display unit. Each of the kitchen remote controller 48 and the bathroom remote controller 49 may notify the user of information by sound or voice emitted from the speaker.

At least one of the kitchen remote controller 48 and the bathroom remote controller 49 emits at least one of an alarm sound and an alarm sound (hereinafter, collectively referred to as "alarm sound") from the speaker when an abnormality of the bather is detected. Can be done. In this case, the speaker corresponds to the alarm means. At least one of the kitchen remote controller 48 and the bathroom remote controller 49 can issue an alarm by the display unit when an abnormality of the bather is detected. In this case, the display unit corresponds to the alarm means. When an alarm is issued by the display unit, for example, the user may be alerted by blinking the display unit, or an alarm message indicating that an abnormality of the bather has been detected may be displayed on the display unit. .. The alarm by the display unit is hereinafter referred to as "alarm display".

In the present embodiment, the kitchen remote controller 48 is an example of a second remote controller installed in a place other than the bathroom. The hot water supply system 35 may include a second remote controller installed in a place other than the bathroom, such as a living room, in place of or in addition to the kitchen remote controller 48.

In the following description, the hot water stored in the bathtub 30 will be referred to as "bath water". The electric drain plug 50 is installed at the bottom of the bathtub 30. When the electric drain plug 50 is closed, bath water can be stored in the bathtub 30. When the electric drain plug 50 is opened, the bath water in the bathtub 30 is discharged through the electric drain plug 50 to, for example, a drain pipe (not shown). By opening the electric drain plug 50, all the bath water in the bathtub 30 can be discharged to the outside. The electric drain plug 50 is an example of a drain device that discharges the bath water stored in the bathtub 30 to the outside of the bathtub 30. The electric drain plug 50 is opened and closed by being driven by, for example, an electric motor (not shown). The control device 36 can control the operation of the electric drain plug 50. The control device 36 can detect, for example, whether the electric drain plug 50 is closed or open based on the signal from the electric motor. The electric drain plug 50 may have an adjustable opening degree. For example, by driving the electric drain plug 50 with a stepping motor (not shown), the opening degree of the electric drain plug 50 can be easily adjusted. The control device 36 may directly control the operation of the electric drain plug 50, or the control device 36 indirectly controls the operation of the electric drain plug 50 via a control unit (not shown) of the electric drain plug 50 installed in or near the bathroom. The operation of the electric drain plug 50 may be controlled.

The kitchen remote controller 48 may be capable of accepting user operations for operating the electric drain plug 50. For example, the user may be able to input a command for opening the electric drain plug 50 and a command for closing the electric drain plug 50 to the kitchen remote controller 48. The user can remotely control the electric drain plug 50 by operating the kitchen remote controller 48.

The HP unit 7 functions as a heating means for heating the low-temperature water led from the hot water storage tank 8 included in the tank unit 33. The HP unit 7 constitutes a heat pump cycle by connecting a compressor 1, a water refrigerant heat exchanger 3, an expansion valve 4, and an air heat exchanger 6 in an annular shape by a refrigerant pipe 5. The water-refrigerant heat exchanger 3 is for exchanging heat between the refrigerant flowing through the refrigerant pipe 5 and the low-temperature water led from the tank unit 33.

The tank unit 33 contains the following various parts and pipes. The hot water storage tank 8 is for storing hot water. A third water supply pipe 9c is connected to the water inlet 8a provided at the bottom of the hot water storage tank 8. The water supplied from a water source such as tap water is adjusted to a predetermined pressure by the pressure reducing valve 31, and then flows into the hot water storage tank 8 through the third water supply pipe 9c. A hot water supply pipe 21 for supplying the hot water stored in the hot water storage tank 8 to the outside of the hot water supply system 35 and a hot water supply pipe 13 are connected to the hot water introduction outlet 8d provided in the upper part of the hot water storage tank 8. There is. The hot water heated by the HP unit 7 flows into the hot water storage tank 8 from the hot water introduction port 8d, and the low temperature water from the third water supply pipe 9c flows in from the water introduction port 8a. Hot water is stored so that there is a temperature difference between the parts. Further, a plurality of hot water storage temperature sensors 42 and 43 are attached to the surface of the hot water storage tank 8 at different heights. By detecting the temperature distribution of the hot water in the hot water storage tank 8 with these hot water storage temperature sensors 42 and 43, the amount of remaining hot water in the hot water storage tank 8 is grasped, and the hot water in the hot water storage tank 8 is boiled by the HP unit 7. Start, stop, etc. are controlled.

A circulation pump 12 and a bath heat exchanger 20 are built in the tank unit 33. The circulation pump 12 is a pump for circulating hot water to various pipes described later in the tank unit 33, and is provided on the HP going pipe 14. The bath heat exchanger 20 is a heat exchanger for heating the water to be heated (bath water, heating water, etc.) on the secondary side by using the high temperature hot water supplied from the hot water storage tank 8 or the HP unit 7. is there. In the present embodiment, a bath going pipe 27 and a bath returning pipe 28 for circulating bath water will be illustrated and described as a configuration on the secondary side of the bath heat exchanger 20. The bath heat exchanger 20 is installed in the middle of the bath going pipe 27 and the bath returning pipe 28. Further, in the middle of the bath going pipe 27 and the bath returning pipe 28, a bath circulation pump 29 for circulating bath water, a bath returning temperature sensor 38 for detecting the temperature of the bath water discharged from the bathtub 30, and a bath returning temperature sensor 38 are provided. The bath temperature sensor 37 for detecting the temperature of the bath water after heat exchange from the bath heat exchanger 20, the water flow detecting means 46 for determining the circulation of the bath water, and the water level in the bathtub 30 are detected. A water level sensor 47 is installed. Since the bath return pipe 28 and the bath going pipe 27 from the bathtub 30 form a circulation circuit, this is referred to as a bath circulation circuit.

The three-way valve 11 is a flow path switching means having an a port and a b port for hot water to flow in and a c port for hot water to flow out. The four-way valve 18 is a flow path switching means having b-ports and c-ports for hot water to flow in and a-ports and d-ports for hot water to flow out, and has four paths, ab, ac, and bd. , Cd, and the flow path can be switched. Further, the tank unit 33 has a water outlet pipe 10, a hot water introduction pipe 20a, a first bypass pipe 16, a hot water outlet pipe 20b, and a second bypass pipe 17. The water outlet pipe 10 connects the water outlet 8b provided at the lower part of the hot water storage tank 8 with the a port of the three-way valve 11. The HP going pipe 14 connects the c port of the three-way valve 11 to the inlet side of the HP unit 7. The HP return pipe 15 connects the outlet side of the HP unit 7 and the c port of the four-way valve 18. The hot water supply pipe 13 connects the d port of the four-way valve 18 and the hot water introduction outlet 8d above the hot water storage tank 8. The first bypass pipe 16 connects the a port of the four-way valve 18 and the hot water introduction port 8c provided between the central portion and the lower portion of the hot water storage tank 8. The hot water introduction pipe 20a branches from the middle of the hot water supply pipe 13 and is connected to the primary side inlet of the bath heat exchanger 20. The hot water outlet pipe 20b connects the primary side outlet of the bath heat exchanger 20 and the b port of the three-way valve 11. The second bypass pipe 17 branches from between the circulation pump 12 in the HP going pipe 14 and the inlet side of the HP unit 7, and is connected to the b port of the four-way valve 18. Further, the tank unit 33 has a first water supply pipe 9a, a second water supply pipe 9b, a hot water supply mixing valve 22, a bath mixing valve 23, a first hot water supply pipe 24, and a second hot water supply pipe 25. One end of the first water supply pipe 9a is connected to a water source such as a water supply, and the second water supply pipe 9b and the third water supply pipe 9c are connected to the other end of the first water supply pipe 9a via a pressure reducing valve 31. The second water supply pipe 9b is branched from the middle and is connected to the hot water supply mixing valve 22 and the bath mixing valve 23, respectively. The hot water supply pipe 21 branches from the middle and is connected to the hot water supply mixing valve 22 and the bath mixing valve 23, respectively. In the middle of the second hot water supply pipe 25, a bath solenoid valve 26 for opening and closing the second hot water supply pipe 25 and a bath flow rate sensor 45 for detecting the flow rate of hot water passing through the second hot water supply pipe 25 are provided.

The hot water mixing valve 22 and the bath mixing valve 23 are set by the user by adjusting the flow rate ratio of the high temperature hot water supplied from the hot water supply pipe 21 and the low temperature water supplied from the second water supply pipe 9b. Hot water at a temperature is generated and flows into the first hot water supply pipe 24 and the second hot water supply pipe 25, respectively. The hot water whose temperature has been adjusted by the hot water supply mixing valve 22 is supplied from the first hot water supply pipe 24 to a faucet (not shown) such as a shower or a curan used by the user via a hot water tap 34. The hot water adjusted to the set temperature by the bath mixing valve 23 flows into the bathtub 30 from the second hot water supply pipe 25 through the bath electromagnetic valve 26, the bath flow sensor 45, the bath going pipe 27, and the bath returning pipe 28.

The hot water filling is started, for example, by the user operating the bathroom remote controller 49. When the hot water filling is started, the set amount of hot water is supplied to the bathtub 30. After supplying the set amount of hot water, the automatic bath operation for keeping the temperature of the bathtub 30 constant can be continued. In the automatic bath operation, the bath circulation pump 29 is operated at regular intervals (for example, 10 minutes) to circulate the hot water in the bathtub 30 to the bath circulation circuit. At this time, the bathtub return temperature sensor 38 detects the bathtub temperature, and if the bathtub temperature is lower than the set temperature, the reheating operation of heating the bath water with the bath heat exchanger 20 is started and set. When the bathtub temperature rises to the temperature, the reheating operation is stopped. The automatic bath operation either stops the user manually when taking a bath or continues to operate until a set time.

A bathroom dryer 60 is installed on the ceiling of the bathroom. The bathroom dryer 60 includes a bathroom dryer control unit 61 and a person detection sensor 63. The bathroom dryer control unit 61 controls the operation of the bathroom dryer 60. The bathroom dryer control unit 61 is connected to the communication device 62 and the person detection sensor 63. The person detection sensor 63 detects a bather in the bathtub 30. The human detection sensor 63 may be, for example, a motion sensor having a pyroelectric element. The human detection sensor 63 may also be, for example, a monitoring sensor that detects at least one of a bather's body movement, beating, and respiration using at least one of microwave Doppler radar, thermography, and ultrasonic radar. Good. The entire internal space of the bathtub 30 is included inside the viewing angle of the person detection sensor 63. By locating the person detection sensor 63 on the ceiling of the bathroom, the following effects can be obtained. The distance between the person detection sensor 63 and the bathtub 30 can be made sufficiently long, and the detection area by the person detection sensor 63 can be widened. Therefore, even if the viewing angle of the person detection sensor 63 is narrow, the entire internal space of the bathtub 30 can be reliably included inside the viewing angle of the person detection sensor 63. Further, the blind spot of the person detection sensor 63 does not occur due to the side wall of the bathtub 30 or the like.

In the present embodiment, the bathroom dryer 60 is an example of bathroom equipment installed on the ceiling of the bathroom. The bathroom equipment installed on the ceiling of the bathroom is not limited to the bathroom dryer 60. Instead of the bathroom dryer 60, for example, a bathroom heater installed on the ceiling of the bathroom, a bathroom ventilation fan, or a bathroom lighting may include a person detection sensor 63.

The control device 36 can communicate with the bathroom dryer control unit 61 via the communication device 44 and the communication device 62. The communication between the communication device 44 and the communication device 62 may be wireless communication or wired communication. The communication device 44 and the communication device 62 may be able to communicate with each other via the home network. The control device 36 can receive the signal of the person detection sensor 63 via the communication device 44, the communication device 62, and the bathroom dryer control unit 61. The control device 36 has an abnormality detection unit 361 that detects an abnormality of a bather in the bathtub 30 based on a signal of the person detection sensor 63. The abnormality detection unit 361 indicates that the bather is abnormal when the signal of the person detection sensor 63 indicates that there is a bather in the bathtub 30 and the body movement of the bather does not continue for a certain period of time. May be determined. In the present embodiment, since the entire internal space of the bathtub 30 is included inside the viewing angle of the person detection sensor 63, the bather's abnormality can be reliably detected no matter where the bather is in the bathtub 30. it can.

Instead of the above configuration, the bathroom dryer control unit 61 may have an abnormality detection unit that detects an abnormality of a bather in the bathtub 30 based on a signal of the person detection sensor 63. In this case, when an abnormality of the bather is detected, the control device 36 receives the information from the bathroom dryer control unit 61 via the communication device 44 and the communication device 62.

The communication device 44 can communicate with the external communication terminal 70 via an external communication line such as the Internet. The external communication terminal 70 may be, for example, a smartphone, a tablet terminal, a personal computer, or a mobile phone.

In the present embodiment, the bathroom remote controller 49 includes a second person detection sensor 51. The second person detection sensor 51 may be a motion sensor or a watching sensor as described above. When the signal of the person detection sensor 63 of the bathroom dryer 60 is not available, the abnormality detection unit 361 detects the abnormality of the bather based on the signal of the second person detection sensor 51. The "when the signal of the person detection sensor 63 cannot be used" is, for example, the case where the person detection sensor 63 fails. Depending on the mounting position of the bathroom remote control 49, a part of the internal space of the bathtub 30 may be outside the viewing angle of the second person detection sensor 51, and the side wall of the bathtub 30 causes the second person detection sensor. Since the blind spot of 51 may occur, the second person detection sensor 51 may not be able to detect the bather in the bathtub 30 depending on the position of the bather in the bathtub 30. Therefore, in the system of the present embodiment, the second person detection sensor 51 is only used as a backup when the signal of the person detection sensor 63 cannot be used.

In the system of the present embodiment, it is possible to set to disable the function of detecting an abnormality of the bather. For example, the user may operate the bathroom remote controller 49 to disable the function of detecting an abnormality of the bather in advance. A user who does not want to use the function of detecting an abnormality of a bather can surely prevent an unnecessary alarm from being given by disabling the function in advance.

As described above, in the present embodiment, the control device 36 can detect whether or not the electric drain plug 50 is open by the signal from the electric drain plug 50. When the electric drain plug 50 is open, it is considered that there is no bath water in the bathtub 30, so it is considered that there are no bathers in the bathtub 30. Therefore, there is no need for a process to detect an abnormality in the bather. Therefore, in the present embodiment, the control device 36 disables the function of detecting the abnormality of the bather when the electric drain plug 50 is open. As a result, it is possible to avoid executing unnecessary detection processing.

FIG. 2 is a flowchart showing the processing according to the first embodiment. In step S1 of FIG. 2, the control device 36 determines whether or not the function of detecting the abnormality of the bather should be enabled. When the user has disabled the function of detecting an abnormality of the bather, it is not necessary to execute the process of step S2 or lower, so that the process ends after step S1. Further, when the electric drain plug 50 is open, it is not necessary to execute the process of step S2 or less, so the process ends after step S1. If the user has not disabled the function to detect abnormalities in the bather and the electric drain plug 50 is closed, the function to detect abnormalities in the bather should be enabled. The process proceeds from step S1 to step S2.

In step S2, the abnormality detection unit 361 of the control device 36 executes a process of detecting an abnormality of the bather in the bathtub 30 based on the signal of the person detection sensor 63. When the signal of the person detection sensor 63 cannot be used, the abnormality detection unit 361 detects the abnormality of the bather based on the signal of the second person detection sensor 51. When an abnormality of the bather is detected, the process proceeds from step S2 to step S3.

In step S3, the control device 36 commands the bathroom remote controller 49 to issue at least one of the alarm sound and the alarm display from the bathroom remote controller 49. By issuing at least one of the alarm sound and the alarm display from the bathroom remote controller 49, the effect of awakening the bather whose consciousness level has decreased can be expected. Generally, the bathroom remote controller 49 is configured so that the user can set the volume of the speaker. When the alarm sound is emitted from the bathroom remote controller 49, the alarm sound may be generated at a loud volume regardless of the volume setting of the speaker. By generating an alarm sound at a loud volume, the effect of awakening a bather whose consciousness level has decreased can be further improved.

The process proceeds from step S3 to step S4. The bathroom remote controller 49 includes means for receiving an alarm release operation, which is a user operation for canceling the alarm. For example, the alarm may be canceled when a predetermined button on the bathroom remote controller 49 is pressed. In step S4, it is determined whether or not the alarm release operation has been performed on the bathroom remote controller 49. When the alarm release operation is performed on the bathroom remote controller 49, it is probable that the bather awakened by the alarm performed the alarm release operation. Alternatively, it is probable that a cohabitant who noticed the alarm sound from the bathroom remote controller 49 rushed to the bathroom, rescued the bather, and performed an alarm release operation on the bathroom remote controller 49. In these cases, it is not necessary to continue the alarm. Therefore, when the alarm release operation is performed on the bathroom remote controller 49, the process proceeds from step S4 to step S5, the alarm from the bathroom remote controller 49 is released, and the process of this flowchart is completed.

On the other hand, when the alarm release operation is not performed on the bathroom remote controller 49, it is considered that the consciousness level of the bather is not restored and the cohabitant is not aware of it. In this case, the process proceeds from step S4 to step S6. In step S6, the control device 36 opens the electric drain plug 50 and discharges the bath water in the bathtub 30, thereby lowering the water level in the bathtub 30. As a result, the possibility that water enters the mouth of the bather in the bathtub 30 can be reduced, so that the possibility that the bather in the bathtub 30 becomes drowned can be reduced.

The process proceeds from step S6 to step S7. In step S7, the control device 36 commands the kitchen remote controller 48 to issue at least one of the alarm sound and the alarm display from the kitchen remote controller 48. By issuing an alarm from the kitchen remote controller 48, it is possible to notify the cohabitant that an abnormality of the bather has been detected, and to urge the cohabitant to go to rescue the bather.

The process proceeds from step S7 to step S8. In step S8, the control device 36 transmits an alarm to the external communication terminal 70 that an abnormality of the bather has been detected by the communication device 44 via the external communication line. The external communication terminal 70 is, for example, a preset external communication terminal 70 such as a smartphone, a tablet terminal, or a mobile phone carried by a bather's cohabitant, family member, acquaintance, or the like. By transmitting an alarm to the external communication terminal 70, it is possible to notify a cohabitant, a family member, an acquaintance, etc. who are out of the office that an abnormality in the bather has been detected. Therefore, even when no one other than the bather is in the house, it can be expected that the cohabitants, family members, acquaintances, etc. who are out of the house will rush to rescue the bather.

The process proceeds from step S8 to step S9. In step S9, the control device 36 controls the external communication terminal 70, such as a smartphone, a tablet terminal, or a mobile phone, so that a call can be made between the microphone and the speaker of the bathroom remote control 49. That is, the audio signal (received signal) received from the external communication terminal 70 via the external communication line and the communication device 44 is reproduced by the speaker of the bathroom remote control 49, and the audio signal (transmission) collected by the microphone of the bathroom remote control 49 is reproduced. The signal) is transmitted to the external communication terminal 70 by the communication device 44 via the external communication line. As a result, the following effects can be obtained. Living together, family members, acquaintances, etc. who are out of the house can call out to the bathers from outside the house and check whether the bathers' consciousness level is lowered. If the consciousness level of the bather has decreased, it can be expected that the consciousness level of the bather will be restored by the call. When the bather awakens and responds, the voice can be heard by the cohabitants, family members, acquaintances, etc. outside the house, and it can be confirmed that the bather has awakened.

The bathroom remote controller 49 may include a camera that includes the inside of the bathtub 30 in the photographing range. In this case, in step S8 or step S9, the following may be further performed. The control device 36 transmits the image data taken by the camera of the bathroom remote controller 49 to the external communication terminal 70 by the communication device 44 via the external communication line. As a result, cohabitants, family members, acquaintances, etc. who are out of the house can check the state of the bather from outside the house with an image. The image data transmitted to the external communication terminal 70 may have a lower image quality than the image output from the camera. By intentionally lowering the image quality of the image transmitted to the external communication terminal 70, the privacy of the bather can be protected.

The process proceeds from step S9 to step S10. In step S10, the control device 36 again determines whether or not the alarm release operation has been performed on the bathroom remote controller 49. When the alarm release operation is performed on the bathroom remote control 49, the bather awakens and performs the alarm release operation by himself, or a co-resident or the like rushes to the bathroom to rescue the bather and rescue the bathroom remote control 49. It is probable that the alarm was released. Therefore, there is no problem even if all the alarms are canceled and the discharge of bath water from the bathtub 30 is stopped. Therefore, in this case, the process proceeds from step S10 to step S11, the electric drain plug 50 is closed, and the discharge of bath water is stopped. Further, the process proceeds from step S11 to step S12 to stop the alarms of all the devices of the bathroom remote controller 49, the kitchen remote controller 48, and the external communication terminal 70, and then end the process of this flowchart.

On the other hand, when the alarm release operation is not performed on the bathroom remote controller 49, the process proceeds from step S10 to step S13. The kitchen remote controller 48 includes means for receiving an alarm release operation. For example, the alarm may be canceled when a predetermined button on the kitchen remote controller 48 is pressed. In step S13, the control device 36 determines whether or not the alarm release operation has been performed on the kitchen remote controller 48. When the alarm release operation is performed on the kitchen remote controller 48, the process proceeds to step S14 to stop the alarm on the kitchen remote controller 48. Further, the process proceeds from step S14 to step S15 to stop the alarm of the external communication terminal 70. When the alarm release operation is performed on the kitchen remote controller 48, it is considered that the person inside the house has noticed the alarm, so there is no problem even if the alarm of the external communication terminal 70 handled by the person outside the house is stopped. .. The process returns from step S15 to step S10.

In the present embodiment, when the alarm release operation is performed on the kitchen remote controller 48 and the alarm release operation is not performed on the bathroom remote controller 49, the alarm of the kitchen remote controller 48 is stopped, but the bathroom remote controller The 49 alarms continue. As a result, the following effects can be obtained. Before an adult notices the alarm from the kitchen remote controller 48, a small child or the like may mistakenly perform the alarm release operation on the kitchen remote controller 48. In this case, if the alarm of the bathroom remote controller 49 is stopped, the adult may remain unaware of the alarm and the bather may not be rescued. On the other hand, by continuing the alarm of the bathroom remote controller 49, it is possible to more reliably prevent such a situation from occurring.

If the alarm release operation has not been performed on the kitchen remote controller 48 in step S13, the process proceeds to step S16. When the alarm release operation is performed on the external communication terminal 70, the communication device 44 receives the alarm release command via the external communication line. In step S16, the control device 36 determines whether or not the alarm release command has been received from the external communication terminal 70. If the alarm release command has not been received from the external communication terminal 70, the process returns from step S16 to step S10. When the alarm release command is received from the external communication terminal 70, the process proceeds to step S17, stops the alarm of the external communication terminal 70, and then returns to step S10.

In the present embodiment, when the alarm release operation is performed only on the external communication terminal 70, the alarms of the kitchen remote controller 48 and the bathroom remote controller 49 are continued without being released. If the alarm release operation is performed only on the external communication terminal 70 handled by a person outside the house, it is not certain whether the bather has been rescued. Therefore, by continuing the alarms of the kitchen remote controller 48 and the bathroom remote controller 49, it is possible to ensure that the bather is rescued.

In the process of determining whether or not the function of detecting the abnormality of the bather should be enabled in step S1 described above, the determination of whether or not the bath automatic operation is performed may be added. Further, the external communication terminal 70 is not limited to a smartphone, a tablet terminal, a personal computer, a mobile phone, etc. carried by an individual, and may be, for example, another electric device in the house capable of communicating via a communication device 44, or a fire department. It may be a communication terminal installed in a contracted security company or the like.

Further, in the above-described embodiment, the configuration in which an alarm is issued from the bathroom remote controller 49 via the control device 36 of the hot water supply system 35 has been described as an example. However, for example, the control unit of the bathroom equipment installed on the ceiling of the bathroom may be used. The bathroom remote controller 49 may be configured to issue an alarm by directly issuing a command to the bathroom remote controller 49 without going through the control device 36 of the hot water supply system 35.

1 Compressor, 3 Water refrigerant heat exchanger, 4 Expansion valve, 5 Coolant piping, 6 Air heat exchanger, 7 HP unit, 8 Hot water storage tank, 11 Three-way valve, 12 Circulation pump, 13 Hot water supply piping, 18 Four-way valve, 20 Heat exchanger for bath, 21 Hot water supply pipe, 22 Mixing valve for hot water supply, 23 Mixing valve for bath, 24 1st hot water supply pipe, 25 2nd hot water supply pipe, 26 Electromagnetic valve for bath, 29 Bath circulation pump, 30 Bathtub, 31 Pressure reducing valve, 33 tank unit, 34 hot water tap, 35 hot water supply system, 36 control device, 42, 43 hot water storage temperature sensor, 44 communication device, 45 bath flow sensor, 46 water flow detection means, 47 water level sensor, 48 kitchen remote control, 49 Bathroom remote control, 50 electric drain plug, 51 second person detection sensor, 60 bathroom dryer, 61 bathroom dryer control unit, 62 communication device, 63 person detection sensor, 70 external communication terminal, 361 abnormality detection unit

Claims (9)

At least one remote control device for remotely controlling the hot water supply device, which has an alarm means for issuing an alarm,
An abnormality detecting means for detecting an abnormality of a bather in a bathtub of the bathroom based on a signal of a person detection sensor provided in a bathroom device installed on the ceiling of the bathroom.
With
In an alarm system that issues an alarm by the alarm means of the remote controller when an abnormality of the bather is detected .
The remote control device includes a bathroom remote controller installed in the bathroom and a second remote controller installed in a place other than the bathroom.
Each of the bathroom remote controller and the second remote controller includes means for receiving an alarm release operation, which is a user operation for canceling the alarm.
When the alarm release operation is performed on the bathroom remote controller, the alarms of both the bathroom remote controller and the second remote controller are stopped.
When the alarm release operation is performed on the second remote controller and the alarm release operation is not performed on the bathroom remote controller, the alarm of the second remote controller is stopped and the alarm of the bathroom remote controller is alarmed. An alarm system that does not stop . At least one remote control device for remotely controlling the hot water supply device, which has an alarm means for issuing an alarm,
An abnormality detecting means for detecting an abnormality of a bather in a bathtub of the bathroom based on a signal of a person detection sensor provided in a bathroom device installed on the ceiling of the bathroom.
With
In an alarm system that issues an alarm by the alarm means of the remote controller when an abnormality of the bather is detected .
Further provided with means for detecting whether the drain plug of the bathtub is open,
An alarm system that disables the function of detecting an abnormality of the bather when the drain plug of the bathtub is open . At least one remote control device for remotely controlling the hot water supply device, which has an alarm means for issuing an alarm,
An abnormality detecting means for detecting an abnormality of a bather in a bathtub of the bathroom based on a signal of a person detection sensor provided in a bathroom device installed on the ceiling of the bathroom.
With
In an alarm system that issues an alarm by the alarm means of the remote controller when an abnormality of the bather is detected .
The remote control device includes a bathroom remote control installed in the bathroom.
The bathroom remote controller includes a second person detection sensor.
The abnormality detection means is an alarm system that detects an abnormality of the bather based on the signal of the second person detection sensor when the signal of the person detection sensor of the bathroom device is not available . Equipped with a communication means capable of communicating with an external communication terminal
The warning system according to any one of claims 1 to 3 , wherein when an abnormality of the bather is detected, an alarm is transmitted to the external communication terminal by the communication means. A drainage device that discharges the bath water stored in the bathtub to the outside of the bathtub,
A means for operating the drainage device so that the water level in the bathtub is lowered when an abnormality of the bather is detected.
The warning system according to any one of claims 1 to 4 . Equipped with a communication means capable of communicating with an external communication terminal
The remote control device includes a bathroom remote control installed in the bathroom.
The bathroom remote controller includes a camera that includes the inside of the bathtub as a shooting range.
The invention according to any one of claims 1 to 5 , wherein when an abnormality of the bather is detected, the data of the image taken by the camera is transmitted to the external communication terminal by the communication means. Alarm system. The warning system according to any one of claims 1 to 6, which can be set to disable the function of detecting an abnormality of a bather. Equipped with a communication means that can communicate with an external communication terminal that can talk
The remote control device includes a bathroom remote control installed in the bathroom.
The bathroom remote controller includes a microphone and a speaker.
The warning system according to any one of claims 1 to 7, wherein when an abnormality of the bather is detected, a call can be made between the bathroom remote controller and the external communication terminal by the communication means. .. With the hot water supply device
The warning system according to any one of claims 1 to 8 .
Hot water supply system equipped with.

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