JP7099702B2 - Bathroom anomaly detection system - Google Patents

Description

The present invention relates to an abnormality detection technique for detecting the occurrence of a bathing abnormality from the biological state of a bather and avoiding a state of drowning in bathtub water.

If the bather becomes abnormal and drowns in the bathtub while taking a bath, it is difficult for the parties to contact the outside of the bathroom. Aside from being accompanied by a caregiver, the bathroom is usually a free space for the bather, and the privacy of the bather is maintained. Even if people outside the bathroom care about the bather, there is a limit to constantly monitoring the bather.
For example, in the case of abnormality detection in a hotel bathroom, there are multiple sensors under the bathroom counter that detect the human body, and it is normal when one or two of the sensors detect a bather. It is known that it is determined that an abnormal situation has occurred when three or more of them are in the detection state continuously for a predetermined time or longer (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 8-50693

By the way, if the image is monitored from multiple places in the bathroom, the accuracy of determining whether it is abnormal or normal will be improved. However, as a free space in the bathroom, hindering the environmental friendliness of bathing and limiting the degree of freedom and privacy has the problem that the comfort required for bathing is impaired and the bather is uncomfortable. There is also a problem that making the bather feel that he / she is in a monitoring state puts stress on the bather and reduces the bathing effect. However, it is essential to avoid the unforeseen situation of drowning in bathtub water while taking a bath.
Patent Document 1 does not disclose or suggest such a problem, and the configuration disclosed in Patent Document 1 cannot solve such a problem.
Therefore, in view of the above problems, an object of the present invention is to discover the occurrence of bathing abnormalities due to drowning in bathtub water during bathing without disturbing the bathing environment and comfort and without giving stress to the bather. The purpose is to eliminate the drowning state.

In order to achieve the above object, one aspect of the bathroom abnormality detection system of the present invention is a biological sensor that acquires biometric information of a person in the bath, a drain plug that drains hot water in the bath, and a bather. The measurement result of the biometric information is acquired one by one from the message notification means for notifying the call message and the biometric sensor, and it is determined from this measurement result that a person is in the bathing, and the second from the first timing to the second. The possibility of a drowning state is determined from the transition state of the biological information based on the measurement result up to the timing, and according to the determination result, a predetermined time is determined from the third timing in which the message notification means calls the bather. An abnormality determining means for determining an abnormal bathing state from a change state of the biological information based on a comparison result between the biological information detected at the fourth timing after the lapse of time and the biological information detected at the second timing, and the above. When the abnormality determining means determines that the bathing state is abnormal, the drain plug is opened to provide a control means for draining the hot water in the bathtub.
In this bathroom abnormality detection system, the abnormality determination means may determine whether or not the person is drowned in hot water in the bathtub from a sudden change in the heart rate of the person in the bathtub from the acquired biological information. ..
In this bathroom abnormality detection system, the abnormality determination means may determine the abnormal bathing state when there is no change in the biological information from the biological sensor acquired after the notification by the message notification means.
In this bathroom abnormality detection system, the control means may control the opening / closing time or the amount of drainage of the drain plug, and discharge a predetermined amount of hot water in the bathtub.

In this bathroom abnormality detection system, a bathing monitoring sensor for detecting whether or not a person is taking a bath is further provided, and in the abnormality determination means, the bathing monitoring sensor detects a bathing state and the biological sensor detects the living body. When the information indicates an abnormal state, it may be determined that the bather is drowning in an abnormal bathing state.
In this bathroom abnormality detection system, a person monitoring sensor for detecting the presence or absence of a person in the bathtub by the sensor area of the presence or absence of a person is further provided. Moreover, when the person monitoring sensor detects the absence of a person, it may be determined that the bather is drowning in an abnormal bathing state.
In this bathroom abnormality detection system, the message notification means may be installed in a remote control device in the bathroom.
In this bathroom abnormality detection system, a terminal portion linked with an external system may be provided, and the terminal portion may enable transmission / reception of information including a determination output of the abnormal bathing state.

According to the present invention, any of the following effects can be obtained.

(1) By grasping that the bather has become drowned from the detected biological condition and draining the bathtub water, the long-term drowning state is avoided and the influence on the bather's body is suppressed. be able to.
(2) By monitoring the drowning state of bathers and draining the bathtub water immediately, it is possible to avoid accidents caused by drowning in the bathtub water.
(3) By detecting and using the biological information of the bather, it is possible to monitor whether or not the bather is taking a bath and the physical condition of the bather, and there is no need to use many sensors in the bathroom. The number of parts can be reduced and the detection process can be speeded up.

It is a figure which shows the bathroom abnormality detection system which concerns on 1st Embodiment. A is a diagram showing an example of a state in which an abnormal bathing state due to drowning in bathtub water is detected by a sensor, and B is a diagram showing an example of a state in which wastewater treatment is executed for an abnormal bathing state due to drowning. It is a figure which shows an example of the determination process of the drowning state based on the detected biological information. It is a flowchart which shows an example of a bathing monitoring process. It is a figure which shows the bathroom abnormality detection system which concerns on the 2nd Embodiment. A is a diagram showing a bathing detection state, B is a diagram showing an example of an abnormal bathing state detected by a sensor drowning in bathtub water, and C is a diagram showing an example of an abnormal bathing state detected due to drowning, and C executes wastewater treatment for the abnormal bathing state due to drowning. It is a figure which shows the example of the state. It is a flowchart which shows an example of a bathing monitoring process. The bathroom abnormality detection system according to the third embodiment, A is a diagram showing the presence of a person and the detection state of bathing, and B is an example of the detection state of the abnormal bathing state due to drowning in bathtub water by a sensor. FIG. C is a diagram showing an example of a state in which wastewater treatment is executed for an abnormal bathing state due to drowning. It is a flowchart which shows an example of a bathing monitoring process. It is a figure which shows the Example of the bathroom abnormality detection system. It is a figure which shows the water heater. It is a figure which shows the control part of the bathroom abnormality detection system. It is a flowchart which shows the processing procedure of bathing monitoring. The bathroom abnormality detection system according to the second embodiment, A is a diagram showing the movement of a bather and the detection state of bathing, and B is a diagram showing an example of the detection state of an abnormal bathing state due to drowning in bathtub water by a sensor. C is a diagram showing an example of a state in which wastewater treatment is executed for an abnormal bathing state due to drowning. It is a figure which shows an example of the determination function of the abnormal bathing state. It is a flowchart which shows the processing procedure of bathing monitoring.

[First Embodiment]
FIG. 1 shows a bathroom abnormality detection system according to the first embodiment. The configuration shown in FIG. 1 is an example, and the present invention is not limited to the configuration shown in FIG.
The bathroom abnormality detection system 2 monitors (watches) the state of a person in the bathtub 4, that is, the bather, detects the abnormal bathing state due to the drowning of the bather, and treats the wastewater of the bathtub water (BW). I do.
In the bathroom abnormality detection system 2, for example, as shown in FIG. 1, a drain plug 6 and a sensor 8 are installed in a bathtub 4, and an abnormality determination unit 10 and a control unit 12 are provided. In addition, the bathroom abnormality detection system 2 includes a message notification unit 14 and an abnormality notification unit 16.

The sensor 8 is an example of the biological sensor of the present invention that detects the biological information of the bather, for example, a heart rate sensor that detects the heart rate of the bather in the bathtub 4, or a person who detects the presence or absence of movement of the bather. Includes sensor and the like. Further, the sensor 8 may detect or measure a heartbeat waveform if it is a heartbeat sensor, or may detect or measure a movement timing, a movement trajectory, a movement distance, or the like if it is a motion sensor.
The abnormality determination unit 10 is configured by, for example, a computer, monitors the bathing state of the bather based on the biological information detected by the sensor 8, and the bather enters the bathtub water BW along with the presence / absence of a person in the bathtub 4. Determine if it is in a drowned abnormal bathing state. In addition, when using heartbeat information, for example, the abnormality determination unit 10 may have a function of determining a health state based on the heart rate of the bather, the intensity of the heartbeat, and the like. Further, when the abnormality determination unit 10 uses, for example, the motion information of a bather, whether the motion is in a normal state or whether it is violent due to a seizure or other physical condition change from the size of the motion, the range of the motion, the state of the motion, and the like. It may have a health condition determination function.
The control unit 12 is an example of means for controlling so as to eliminate the abnormal bathing state based on the determination result of the abnormality determination unit 10. The control unit 12 may be composed of, for example, a water heater (not shown), a remote controller for the water heater, or an independent control device. The control unit 12 receives a determination output from the abnormality determination unit 10. When the determination output is in the abnormal bathing state, the control unit 12 opens the drain plug 6 and discharges the bathtub water BW from the bathtub 4. Further, when the drain plug 6 is opened, the control unit 12 operates, for example, the message notification unit 14 and the abnormality notification unit 16 to call the bather and execute the abnormality notification process to the outside.

The message notification unit 14 is an example of means for outputting a message to the bathroom under the control of the control unit 12, and is composed of, for example, a speaker function of a bathroom remote controller. Then, the message notification unit 14 outputs a message to the bather who is determined to be in an abnormal bathing state by voice or a light emitting signal, and is in a drowning state due to a notification that the abnormal bathing state is determined, a doze, or the like. Encourage the awakening of existing bathers. This message notification is a melody or an electronic sound that outputs voices such as "Daijyoubudesuka", "Obolenoosoregaarimasu", "Otougaarimasen", "Okitekudasai", and "Nyuyokujikanga Over Death". The message notification unit 14 may be installed, for example, in a bathroom remote controller (remote controller 18 in FIG. 2) installed in the vicinity of the bathtub 4. In addition, a similar message may be output from a kitchen remote controller (not shown) so that it can be confirmed in the kitchen that the bather has a call message.
Under the control of the control unit 12, the abnormality notification unit 16 notifies the inside of the bathroom or the outside of the bathroom of the occurrence of an abnormal bathing state when there is no reaction from the bather after the output of the call message by the message notification unit 14. This is an example of means. The abnormality notification unit 16 is a means for notifying, for example, a speaker of a bathroom remote controller or a kitchen remote controller, a communication terminal such as an external mobile phone, an external server device, or the like by using a communication function.

<Bath watching process>
The sensor 8 is installed, for example, inside the bathtub 4, the peripheral surface of the bathtub 4, a wall in the bathroom, a remote controller 18, or the like, and contacts the bather or indirectly through the bathtub water BW to provide biometric information of the bather. Is detected. In this embodiment, the sensor 8 detects the heart rate at predetermined time intervals or continuously as monitoring of an abnormal bathing state such as drowning based on biological information.
As shown in A of FIG. 2, for example, the sensor 8 collects biological information of a bather whose face is drowned due to falling asleep or clouding of consciousness while taking a bath and turning his face downward. .. At this time, the sensor 8 measures the heart rate of the bather and outputs the result to the abnormality determination unit 10 one by one.
The abnormality determination unit 10 monitors, for example, the heart rate information notified from the sensor 8 to determine whether or not there is a person in the bathtub 4, monitors the bathing state, and executes an abnormality determination process. .. The abnormality determination unit 10 determines that the bather is in a drowning state or may be in a drowning state based on, for example, the heart rate value or the transition state of the value, and determines that the bather is in an abnormal bathing state. Output the judgment result. The abnormality determination unit 10 notifies the control unit 12 of this determination result.

When the control unit 12 receives, for example, a determination result of an abnormal bathing state, the control unit 12 outputs a call processing execution instruction to the message notification unit 14 in the remote control device 18 in the bathroom. Further, as shown in B of FIG. 2, for example, the control unit 12 outputs an operation instruction to the drain plug 6 of the bathtub 4, opens the drain plug 6, and discharges the bathtub water BW through the drain pipe 20. ..
The control unit 12 may perform the bathtub water BW discharge process after performing the call process to the remote controller device 18, or the bathtub water BW when receiving the determination result of the abnormal bathing state without performing the call process. May be discharged. The control unit 12 may determine, for example, the execution order of the call processing and whether or not to execute the call processing, based on the state of the detected biological information, depending on whether or not it is necessary to urgently release from the drowning state.

<Judgment of bathing condition>
FIG. 3 shows an example of processing for determining an abnormal bathing state due to drowning from the detection result. The processing content and determination procedure shown in FIG. 3 are examples.
The abnormality determination unit 10 determines the drowning state of the bather based on, for example, the heart rate information detected by the sensor 8. In this determination process, for example, as shown in FIG. 3, the transition state of biological information including the heart rate with respect to the passage of time is monitored.
The abnormality determination unit 10 acquires, for example, the heart rate information α of the bather at the time t1, and then acquires the heart rate information β at the time t2 after the lapse of a predetermined time. The abnormality determination unit 10 determines the transition state from the heart rate information α to β. In this determination, it is determined whether the transition state peculiar to the drowning state in which breathing is not possible, for example, the transition from the heart rate information α to β is abruptly larger than the change in the heart rate due to normal bathing.

The abnormality determination unit 10 uses, for example, the heart rate information β at time t2 as a determination reference value for the call. The call message processing is performed at the time t3 when the predetermined time has elapsed from the time t2. Then, the abnormality determination unit 10 acquires, for example, the heart rate information at the time t4 when a predetermined time has elapsed from the call, and compares it with the heart rate information β which is the determination reference value. As a result, for example, in the case of the state X1 in which the heart rate is the heart rate information γ in which the heart rate is higher than the heart rate information β, the abnormality determination unit 10 determines that it is in a drowning state, determines that it is in an abnormal bathing state, and decreases the heart rate. In the case of the state X2 in which the information δ is obtained, it is determined that the bathing state is normal when the time t5 at which the heart rate stabilizes is reached.

In this abnormality determination process, it may be determined whether or not the heart rate has dropped sharply due to, for example, cardiopulmonary arrest due to drowning. In addition, the heart rate may be drowned as well as simply increased or decreased. It may be determined whether or not the patient is in an abnormal bathing state by comparing with data showing a peculiar change in heart rate that occurs when the patient falls. In addition, the abnormality determination process includes, for example, an abnormal bathing state including a drowning state when the bather's motion information is used as biological information, a sudden stop state, or conversely, a violent state. You may judge.

<Bath monitoring>
FIG. 4 shows an example of a processing procedure for detecting a bathroom abnormality by monitoring bathing. This processing procedure and processing content are examples, and the present invention is not limited to such a configuration. Further, this input monitoring process is an example of a bathroom abnormality detection method and its program process.
The abnormality determination unit 10 acquires the biological information of the bather from the sensor 8 (S11), and determines the bathing state based on the biological information (S12). The abnormality determination unit 10 determines whether or not the bather is in a drowning state (S13), and if the bather is not in a drowning state (NO in S13), acquires biological information (S11) and determines the bathing state (S12). repeat.

Further, when it is determined that the bather is in a drowning state (YES in S13), the control unit 12 outputs instruction information to the message notification unit 14 and processes a call message to the bather (S14). Then, the abnormality determination unit 10 determines whether or not the drowning state has been recovered by this call message processing (S15). In the determination of recovery from the drowning state, for example, the heart rate information acquired from the sensor 8 may be referred to to determine whether or not the state represents the drowning state. When the bather recovers from the drowning state (YES in S15), he / she returns to S11 and continues bathing monitoring. Further, when the abnormality determination unit 10 determines that the drowning state is not recovered (NO in S15), the control unit 12 opens the drain plug 6 and performs drainage treatment of the bathtub water (BW) (S16). The abnormality notification unit 16 notifies the outside that an abnormal state has occurred due to drowning in the bathtub (S17).

<Effect of the first embodiment>
According to this first embodiment, the following effects can be obtained.
(1) By quickly grasping the state of drowning in the bathtub water BW based on the biological information such as the heart rate of the bather and performing the discharge treatment of the bathtub water, the bathtub can fall asleep and the level of consciousness can be lowered. Even if you cannot escape from the bathtub or take action to secure breathing due to the occurrence of other physical abnormalities, you can release yourself from the drowning state and make it possible for the bather to breathe. ..
(2) By continuously monitoring the drowning state of bathers and draining the bathtub water as soon as possible, it is possible to avoid accidents caused by drowning in the bathtub water.
(3) By grasping the recovery from the drowning state based on the heart rate information, taking the opportunity of calling to the bather, the safety is improved by the quick drainage function for the abnormal bathing state due to the drowning, and the bathtub water. It is possible to achieve both the convenience of the bath function that suppresses the wasteful discharge of BW.
(4) By using biometric information to make judgments during bathing and abnormal bathing conditions due to drowning, the monitoring load on bathers can be reduced, privacy can be ensured, and a large number of sensors can be installed in the bathroom. There is no need to use it, the number of parts can be reduced, and the detection process can be speeded up.

[Second Embodiment]
FIG. 5 shows a bathroom abnormality detection system according to a second embodiment. The configuration shown in FIG. 5 is an example, and the present invention is not limited to the configuration shown in FIG. Further, in FIG. 5, the same reference numerals are given to the same configurations as those in FIG.
The bathroom abnormality detection system 30 according to the second embodiment includes a sensor 32 in addition to the detection system 2 (FIG. 1) described above.
The sensor 32 is an example of a means for detecting the water level of the hot water in the bathtub 4 or the presence / absence of a change in the water level, and the detection output indicates whether or not the bath is taken and the movement of the person during the bath. The sensor 32, for example, is a water level sensor that optically measures the water surface in the bathtub, detects the water pressure in the bathtub 4 or in the piping of a water heater (not shown), and calculates the water level according to the water pressure. You can use the one that does.
Further, since the other configurations are the same as those of the first embodiment, the same reference numerals are given and the description thereof will be omitted.

<Bath watching process>
The water level L1 of the bathtub water BW rises to the water level L2 when the bather enters the bathtub 4, for example, as shown in A of FIG. If the sensor 32 detects the water level L2 or higher, a detection output indicating the bathing state of the bather can be obtained.
FIG. 6B shows a drowning state as an example of an abnormal state.
At this time, the sensor 8 collects the biological information of the bather whose face is drowned due to, for example, falling asleep or clouding of consciousness during bathing. In this embodiment, a heart rate sensor that measures the heart rate of the bather is used as the sensor 8, and the result of the detected heart rate is output to the abnormality determination unit 10 one by one.
Further, the sensor 32 detects that the water level of the bathtub water BW has risen from L2 to L3 due to the drowning state, and outputs the detection result to the abnormality determination unit 10.
The abnormality determination unit 10 monitors, for example, the heart rate information notified from the sensor 8 and the transition to the water level L3 acquired from the sensor 32 to determine whether or not there is a person in the bathtub 4 and to take a bath. Monitor the status and execute the abnormality judgment process. The abnormality determination unit 10 may be in a drowning state or may be in a drowning state based on, for example, a heart rate value or a transition state of the value, and a rise in the water level from L2 to L3. And output the judgment result of abnormal bathing state. The abnormality determination unit 10 notifies the control unit 12 of this determination result.

The control unit 12 performs a calling process and the like, opens the drain plug 6 based on the determination result of, for example, an abnormal bathing state, and lowers the water level by discharging the bathtub water BW.
At this time, the control unit 12 receives the detection result from the sensor 32 and monitors the decrease in the water level in the bathtub 4. Then, when all the hot water in the bathtub 4 is discharged until the water level reaches a predetermined level, the control unit 12 outputs a closing instruction to the drain plug 6. For the water level after the bathtub water BW is discharged, for example, the water level may be set in advance so that the bather does not drown, and the drain plug 6 may be closed when the water level is reached, or the sensors 8 and 32. It may be determined whether or not the bather has been released from the drowning state from the detection result of.

<Bath monitoring>
FIG. 7 shows an example of a processing procedure for detecting a bathroom abnormality by monitoring bathing. This processing procedure and processing content are examples, and the present invention is not limited to such a configuration. Further, this input monitoring process is an example of a bathroom abnormality detection method and its program process.
The abnormality determination unit 10 acquires the biometric information of the bather from the sensor 8 (S21) and acquires the water level information from the sensor 32 (S22) to determine the bathing state (S23). The abnormality determination unit 10 combines the state of change in heart rate and the state of change in water level of bathtub water BW to determine whether or not the bather is in a drowning state (S24), and if it is not in a drowning state (NO in S24). ), Acquisition of biometric information (S21).

Further, when it is determined that the bather is in a drowning state (YES in S24), the control unit 12 outputs instruction information to the message notification unit 14 and processes a call message to the bather (S25). Then, the abnormality determination unit 10 determines whether or not the drowning state has been recovered by this call message processing (S26). In the determination of recovery from the drowning state, for example, the heart rate information acquired from the sensor 8 and the decrease in the water level detected by the sensor 32 may be referred to to determine whether or not the state represents the drowning state. When the bather recovers from the drowning state (YES in S26), he / she returns to S21 and continues bathing monitoring. Further, when the abnormality determination unit 10 determines that the drowning state is not recovered (NO in S26), the control unit 12 opens the drain plug 6 and performs drainage treatment of the bathtub water (BW) (S27). The abnormality notification unit 16 notifies the outside that an abnormal state has occurred due to drowning in the bathtub (S28).

<Effect of the second embodiment>
According to this second embodiment, the following effects can be obtained in addition to the first embodiment.
(1) By combining information on changes in water level in addition to heart rate, which is biological information, the accuracy of determining that a part of the body is or may be drowned in the bathtub water BW is improved. Since it is possible to quickly recover from the drowning state in the bathtub water, it is possible to improve the safety for bathing.
(2) By adding changes in the water level to the judgment factors for unique biological characteristics such as the age of the bather and the strength of cardiopulmonary function, the accuracy of determining the drowning state of the bather is improved, and it is due to drowning. The occurrence of accidents can be suppressed.

[Third Embodiment]
FIG. 8 shows a bathroom abnormality detection system according to a third embodiment. The configuration shown in FIG. 8 is an example, and the present invention is not limited to the configuration shown in FIG. Further, in FIG. 8, the same reference numerals are given to the same configurations as those in FIG.
The bathroom abnormality detection system 40 according to the third embodiment includes a sensor 42 in addition to the detection system 2 (FIG. 1) described above.
This sensor 42 is an example of the person monitoring sensor of the present disclosure that detects the presence / absence of a bather in the bathtub 4 or the bathroom, and for example, an optical sensor may be used. The presence / absence information of the bather detected by the sensor 42 is transmitted to the abnormality determination unit 10, and is used in combination with the biological information of the sensor 8 to determine the drowning state of the bather.
Further, since the other configurations are the same as those of the first embodiment, the same reference numerals are given and the description thereof will be omitted.

<Bath watching process>
As shown in A of FIG. 8, for example, the sensor 42 is set with a sensor area for detecting a bather toward a predetermined position or a predetermined height of the bathtub 4 or the bathroom. The sensor 42 is installed, for example, on a wall in a bathroom, a remote controller 18, or the like, and emits laser light, infrared light, or the like in a predetermined direction and in a predetermined range. Further, the structure may be a structure that receives infrared light emitted by the human body. The sensor 42 detects a bather in the bathtub 4 in a normal posture. In this way, the abnormality determination unit 10 is notified of the detection information as to whether or not there is a bather. Further, at this time, the abnormality determination unit 10 is notified of the biological information detected by the sensor 8.
FIG. 8B shows a drowning state as an example of an abnormal bathing state.
At this time, the sensor 8 collects the biological information of the bather whose face is drowned due to, for example, falling asleep or clouding of consciousness during bathing. Then, the sensor 8 measures the heart rate of the bather, for example, as an example of biological information, and outputs the result to the abnormality determination unit 10 one by one.
Further, the sensor 42 acquires a detection result indicating that no bather exists in the sensor area set in the vicinity of the bathtub 4, and outputs the result to the abnormality determination unit 10.

The abnormality determination unit 10 determines that there is a bather in the bathtub 4 based on the heart rate information notified from the sensor 8, and is in an abnormal bathing state due to drowning based on the detection result that the bather is absent from the sensor 42. And make a judgment. The abnormality determination unit 10 notifies the control unit 12 of this determination result.
The control unit 12 performs a calling process and the like, opens the drain plug 6 based on the determination result of, for example, an abnormal bathing state, and lowers the water level by discharging the bathtub water BW.
At this time, the control unit 12 keeps the drain plug 6 in the closed state or after the drain treatment is performed, for example, when the detection of the sensor 42 changes to the detection result that the bather is present after the call processing is performed. If so, the drain plug 6 is switched from the open state to the closed state.

<Bath monitoring>
FIG. 9 shows an example of a processing procedure for detecting a bathroom abnormality by monitoring bathing. This processing procedure and processing content are examples, and the present invention is not limited to such a configuration. Further, this input monitoring process is an example of a bathroom abnormality detection method and its program process.
The abnormality determination unit 10 acquires the biometric information of the bather from the sensor 8 (S31), acquires the presence / absence information of the bather from the sensor 42 (S32), and determines the bathing state (S33). The abnormality determination unit 10 combines the change state of the heart rate with the presence / absence information of the bather to determine whether or not the bather is in a drowning state (S34), and if it is not in a drowning state (NO in S34). ), Acquisition of biometric information (S31).

Further, when it is determined that the bather is in a drowning state (YES in S34), the control unit 12 outputs instruction information to the message notification unit 14 and processes a call message to the bather (S35). Then, the abnormality determination unit 10 determines whether or not the drowning state has been recovered by this call message processing (S36). In the determination of recovery from the drowning state, for example, the heart rate information acquired from the sensor 8 and the presence / absence information of the bather detected by the sensor 42 may be referred to to determine whether or not the state indicates the drowning state. .. When the bather recovers from the drowning state (YES in S36), he / she returns to S31 and continues bathing monitoring. Further, when the abnormality determination unit 10 determines that the drowning state is not recovered (NO in S36), the control unit 12 opens the drain plug 6 and performs drainage treatment of the bathtub water (BW) (S37). The abnormality notification unit 16 notifies the outside that an abnormal state has occurred due to drowning in the bathtub (S38).

<Effect of the third embodiment>
According to this third embodiment, the following effects can be obtained in addition to the first embodiment and the second embodiment.
(1) By combining the biological information and the detection information of the presence or absence of the bather by setting the sensor area near the bathtub 4, the bather may be drowning in the bathtub water BW. Since the accuracy of determining that there is a bathtub can be improved and the state of being drowned in the bathtub can be recovered more quickly, the safety for bathing can be improved.
(2) The drowning state of the bather by combining the information that directly detects the presence or absence of the bather with the unique biological characteristics such as the age of the bather and the strength of the cardiopulmonary function. Judgment accuracy is improved, and the occurrence of accidents due to drowning can be suppressed.

<Hot water supply system>
FIG. 10 shows an embodiment of a bathroom abnormality detection system. The configuration shown in FIG. 10 is an example, and the present invention is not limited to such a configuration.
The bathroom abnormality detection system 2 according to this embodiment is installed in a hot water supply system, and includes a water heater 50, a bathroom remote controller 52, and a kitchen remote controller 54.
The water heater 50 is provided with a hot water supply control unit 56, a sensor 32 for detecting the water level, and the like. The hot water supply control unit 56 includes a processor 58, a sound sensor circuit unit 60, and a communication control unit 62. The processor 58 controls the linked operation of the bathroom remote controller 52 and the kitchen remote controller 54 through the communication control unit 62. The sound sensor circuit unit 60 detects the voice input of the microphone of the bathroom remote controller 52 or the kitchen remote controller 54, and uses it to determine whether the bather is moving or not.
Further, the hot water supply control unit 56 is connected to the drain plug 6 installed in the bathtub 4 and the sensor 8 for acquiring biological information, and controls the drainage treatment of the bathtub water BW by opening and closing the drain plug 6 and the heart rate of the bather. Performs detection processing such as information.

The hot water supply control unit 56 is connected to the bathroom remote controller 52 and the kitchen remote controller 54 by a transmission line 64. This transmission line 64 constitutes an audio transmission line that transmits a bather's detection output and an audio signal in addition to communication of control signals. The transmission line 64 may be configured wirelessly.
The bathroom remote controller 52 includes a sensor 42 for monitoring the bathing state, a bathroom remote controller control unit 66, a display unit 68, a speaker 70, a microphone 72, a response button 74 for responding to a call to a bather, and the like. The sensor 42 may be installed at a high place = ceiling as a position where a bather can be detected in the bathtub 4, and may be connected to the bathroom remote controller 52.
The kitchen remote controller 54 includes a kitchen remote controller control unit 76, a display unit 78, a speaker 80, a microphone 82, and the like.
The kitchen remote controller control unit 76 is provided with a terminal unit 84 for taking out an abnormality determination output and an abnormality notification output. The terminal portion 84 is connected to the external system 86, and can send and receive information including the above-mentioned abnormal bathing state determination output and abnormality notification output. Specifically, if the security box of the external security system is connected to the terminal unit 84, it is possible to send and receive information including the above-mentioned abnormal bathing state determination output and abnormality notification output via the terminal unit 84. The terminal unit 84 may be provided in the hot water supply control unit 56 or the bathroom remote controller control unit 66.
The bathroom remote controller 52 and the kitchen remote controller 54 configure an interphone function through the microphone 72-speaker 70 and the microphone 82-speaker 80 by the sound sensor circuit unit 60 and the communication control unit 62 of the hot water supply control unit 56.

<Water heater 50>
FIG. 11 shows an example of the water heater 50. In FIG. 11, the same parts as those in FIG. 10 are designated by the same reference numerals.
The water supply W flows to the heat exchanger 92 through the water supply pipe 90 and reaches the mixing valve 96 through the bypass pipe 94 branched from the water supply pipe 90. The temperature sensor 98 detects the water supply temperature. The heat exchanger 92 exchanges the combustion heat of the fuel gas G burned by the burner 100 with the water supply W. The hot water HW obtained by this heat exchange reaches the mixing valve 96 installed in the hot water outlet pipe 102. The mixing valve 96 mixes the hot water HW and the water supply W from the bypass pipe 94. The hot water HW mixed with the water supply W is detected by the temperature sensor 104. The opening degree of the ports a and b of the mixing valve 96 is adjusted by this detected temperature, and the hot water HW of the set temperature is obtained from the hot water supply pipe 106.

When pouring hot water into the bathtub 4, hot water HW is supplied to the bathtub 4 through the hot water pouring pipe 108 and the reheating pipe 110 branched from the hot water supply pipe 106. The hot water HW supplied to the pouring pipe 108 is adjusted by the on-off valve 112.
The reheating pipe 110 is provided with a return pipe 110-1 for flowing the bath water BW to the heat exchanger 114, and a forward pipe 110-2 for returning the bath water BW from the heat exchanger 114 to the bath 4. The heat exchanger 114 exchanges the combustion heat of the fuel gas G burned by the burner 116 with the bath water BW.
The circulation pump 118 installed in the return pipe 110-1 is driven at the time of reheating or pouring, and circulates the bath water BW or the hot water HW to the bath 4 through the reheating pipe 110.
The temperature sensor 120 detects the temperature of the circulating bath water BW. Further, the sensor 32 detects the bathtub water level.

<Control unit 130>
FIG. 12 shows the control unit 130 of the bathroom abnormality detection system 2. This control unit 130 includes a hot water supply control unit 56, a bathroom remote control unit 66, and a kitchen remote control unit 76, and utilizes the water level detection function and voice output function of the hot water supply system to monitor the bathing and to the bather during bathing. Judgment of the abnormal bathing condition that occurs and wastewater treatment of bath water BW.
A computer is mounted on the hot water supply control unit 56, and a processor 58, a memory unit 132, an input / output unit (I / O) 134, and a system communication unit 136 are provided. The processor 58 executes an OS (Operating System) and an abnormality detection program in the memory unit 132. The memory unit 132 is provided with storage elements such as ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), and RAM (Random-Access Memory), and stores an OS and an abnormality detection program.

Under the control of the processor 58, the detection outputs of the detection elements such as the (biological) sensor 8, the (water level) sensor 32, and the temperature sensors 98, 104, 120 are taken into the I / O 134, and the drain plug 6 of the tub 4 and the mixing valve are taken in. A control output for functional units such as 96, an on-off valve 112, a circulation pump 118, and a burner combustion control unit 137 can be obtained.
The system communication unit 136 is an example of the communication control unit 62 described above, and is linked to the bathroom remote controller control unit 66 and the kitchen remote controller control unit 76 by the control of the processor 58. (Water level) The detection output of the sensor 32 is transmitted from the system communication unit 136 to the bathroom remote controller control unit 66.

A computer is mounted on the bathroom remote controller control unit 66, and a processor 138, a memory unit 140, an I / O 142, a system communication unit 144, and a voice modulation / demodulation unit 146 are provided. The processor 138 executes a bathing abnormality detection program in cooperation with the hot water supply control unit 56 based on the OS in the memory unit 140. That is, the processor 138 functions as the above-mentioned abnormality determination unit 10. The memory unit 140 is provided with storage elements such as ROM, EEPROM, and RAM, and stores an OS and an abnormality detection program. The memory unit 140 may realize a timer function in cooperation with the processor 138.
Under the control of the processor 138, the I / O 142 has the detection output of the sensor 42, the response button 74, the ON / OFF input of the switch (SW) 158, the voice input from the voice modulation / demodulation unit 146, 156, and the voice modulation / demodulation unit 146, 156. The audio output, the display output to the display unit 68, and the control output of the LED (Light Emitting Diode) 160 are input and output.

In the system communication unit 144, the hot water supply control unit 56 and the kitchen remote control unit 76 can be connected wirelessly or by wire under the control of the processor 138, and also a communication connection with an internet line or the like, a mobile phone or a smartphone through a public line, or the like. Data communication with the communication terminal of is possible.
The voice modulation / demodulation unit 146 modulates the carrier signal by voice and demodulates the voice signal from the carrier signal. An I / O 142 is connected to the voice modulation / demodulation unit 146, a voice input from the microphone 72 is taken in, and a voice output to the speaker 70 is obtained. The speaker 70 connected to the voice modulation / demodulation unit 146 is an example of the above-mentioned message notification unit 14 and abnormality notification unit 16, and is used for message notification and abnormality notification.

A computer is mounted on the kitchen remote controller control unit 76, and a processor 148, a memory unit 150, a system communication unit 152, an I / O 154, and a voice modulation / demodulation unit 156 are provided. The processor 148 executes an abnormality detection program in cooperation with the hot water supply control unit 56 based on the OS in the memory unit 150. The memory unit 150 is provided with storage elements such as ROM, EEPROM, and RAM, and stores an OS and an abnormality detection program.
Under the control of the processor 148, the I / O 154 takes in the ON / OFF input of the SW162, the input from the voice modulation / demodulation unit 146, 156, etc., the voice output to the voice modulation / demodulation unit 146, 156, the display output to the display unit 78, A judgment output or an abnormality detection output to the external system 86 and a control output of the LED 164 can be obtained.

The hot water supply control unit 56 and the bathroom remote control unit 66 are connected to the system communication unit 152 wirelessly or by wire, and these are controlled by the processor 148.
The voice modulation / demodulation unit 156, like the voice modulation / demodulation unit 146 described above, modulates the carrier signal by voice and demodulates the voice signal from the carrier signal. An I / O 154 is connected to the voice modulation / demodulation unit 156, a voice input from the microphone 82 is taken in, and a voice output to the speaker 80 is obtained. The speaker 80 connected to the voice modulation / demodulation unit 156 is an example of the above-mentioned message notification unit 14 and abnormality notification unit 16, and is used for message notification and abnormality notification.

<Processing procedure for bathing monitoring>
FIG. 13 monitors the bathing according to the embodiment and shows the processing procedure for detecting an abnormality in the bathroom. This processing procedure is an example of computer processing in the abnormality determination unit 10.

Initialization is performed prior to the start of bathing monitoring (S41). After this initialization, the detection information of the (biological) sensor 8, the (water level) sensor 32, and the (human monitoring) sensor 42 is taken in (S42), and the possibility of drowning in the bathtub water is determined from the biological information of the bather. (S43). In this drowning possibility determination, as shown in the first embodiment, the state of change in heart rate is monitored, and the state of sudden increase, decrease, or cardiac arrest of heart rate is judged. Just do it.
If there is no possibility that the bather is drowning based on the judgment based on the biological information (NO in S43), the patient returns to S41 and continues to monitor the bathing state. If it is determined that the bather may be drowning (YES in S43), one of the detection results of the (water level) sensor 32 and the (human monitoring) sensor 42, or a combination thereof, is used for abnormal bathing. The state is determined (S44).

A predetermined time is measured from the determination of the abnormal bathing state due to this drowning (S45), and a call message is notified (S46). In the time measurement after determining the abnormal bathing state, for example, it is a process to see the error of the temporary measurement state and the possibility of recovery from the drowning state, and the measurement time is the safety for the bather and the bathing. It may be set in consideration of the convenience of the equipment.
As a result of the call message notification, it is determined whether there is a reaction or there is a change in the detection result of each sensor (S47). The reaction of the bather may be determined from, for example, pressing the response button 74 of the bathroom remote controller 52 or capturing voice by the microphone 72.
If there is no change in the reaction of the bather or the detection result of the sensor (NO in S47), it is determined that the bather is drowning, the drain plug 6 is opened (S48), and the bathtub water BW is discharged. I do.
Further, when there is a change in the reaction of the bather or the detection result of the sensor (YES in S47), it is determined whether the drowning state has disappeared after the measurement for a predetermined time (S49) (S50). The elimination of the drowning state may be determined by, for example, combining the detection information of the (living body) sensor 8 with the detection information of the (water level) sensor 32 and the (human monitoring) sensor 42.
Then, when the drowning state is not resolved (NO in S50), the drain plug 6 is opened (S48) and the bathtub water BW is discharged. If the drowning state is resolved (YES in S50), the normal bathing monitoring is resumed.
Further, in the drainage treatment of the bathtub water BW, the drain plug 6 is opened for a predetermined time, or the drain plug 6 is closed after draining a predetermined amount of the bathtub water BW (S51). The opening time and the amount of drainage of the drain plug 6 may be set so as to drain water until the face of the bather comes out to the surface of the water, for example, in consideration of the volume of the bathtub 4. That is, the bathtub 4 is drained so that a part of the bathtub water BW remains on a part of the body of the bather.

<Effect of Example 1>
According to this Example 1, the following effects can be obtained.
(1) Even if you are drowned in the bathtub water due to falling asleep or physical abnormality while taking a bath, you can grasp the abnormal bathing condition at an early stage and discharge the bathtub water BW so that the bather can breathe. This enhances the safety of bathing.
(2) After grasping the possibility of the bather's drowning state, the state is confirmed by calling a message, and the abnormal bathing due to drowning is confirmed according to the response state and drained to ensure the safety of bathing. Convenience can be ensured without unnecessary wastewater treatment when the bath is not in an abnormal bathing state.
(3) The kitchen remote control unit 76 or the like is provided with a terminal unit 84 for extracting an abnormality determination output or an abnormality notification output, and such information can be transmitted and received between the external system 86 and the above-mentioned abnormality determination output and abnormality notification output. If shared, the safety of people taking a bath can be further enhanced in combination with an external system 86 such as an existing security system.
(4) By controlling the amount of bathtub water BW discharged to ensure that the bather can breathe, and by leaving the bathtub water BW to the extent that the bather's body does not completely touch the outside air, bathing after drainage The body temperature of the person can be secured, and the safety and convenience of bathing can be ensured.

FIG. 14 shows a configuration example of the bathroom abnormality detection system according to the second embodiment. The configuration shown in FIG. 14 is an example.
The bathroom abnormality detection system 170 according to the second embodiment includes, for example, a sensor 32 for detecting the water level in the bathtub 4 and a pyroelectric sensor 172, as shown in FIG. 14A. The pyroelectric sensor 172 is an example of the (biological) sensor 8 of the present invention, and functions as a motion sensor for detecting the movement of a bather in the bathtub 4 as biometric information. The charcoal sensor 172 can detect at least the movement of a person in the bathtub 4 or trace and memorize the movement, and is installed on, for example, the ceiling or wall surface of the bathroom, or a remote control device installed in the bathtub. May be done. The pyroelectric sensor 172 has, for example, at least the inside of the bathtub 4 and has a sensor area 174 with respect to the surface of the bathtub water BW to set a bather's condition monitoring area. As a result, when the bather operates, the pyroelectric sensor 172 acquires operation information such as the presence / absence of the operation, the amount of the operation, and the operation range. This motion information monitors the movement of a bather who is a living body, and is an example of biological information.

As shown in B of FIG. 14, for example, the abnormality determination unit 10 obtains information that the change in water level has changed from L2 to L3 by detecting the sensor 32, and also combines it with the biological information of the pyroelectric sensor 172. Judge the occurrence of an abnormal condition of the bather.
Then, as shown in C of FIG. 14, for example, when the bather determines that the bather is in an abnormal bathing state, the control unit 12 opens the drain plug 6 and causes the bathtub 4 to discharge the bathtub water BW. ..
Since the other configurations are the same as those of the first embodiment, the same reference numerals are given and the description thereof will be omitted.

<Judgment of bathing condition>
FIG. 15 shows an example of a bathing state determination function.
The abnormality determination unit 10 determines, for example, the state of the bather from the operating state of the bather detected by the pyroelectric sensor 172 and the water level detected by the sensor 32 or the amount of change thereof. That is, the abnormality determination unit 10 determines whether or not there is a person in the bathtub 4 based on the water level of the sensor 32 and its change, and further combines with the detection result of the sensor 172 to determine whether the bathing posture is normal or drowning. Determine if you are in a position that is or is likely to die.
(1) As a result of determining the bathing state, for example, when the pyroelectric sensor 172 detects movement and the detected water level of the sensor 32 is L2, it is determined that there is a bather and the bathing state is normal. do.
(2) When the pyroelectric sensor 172 does not detect the movement and the detected water level of the sensor 32 is L1, the bather is absent and the bathing state cannot be determined.
(3) When the pyroelectric sensor 172 detects movement and the detected water level of the sensor 32 changes from L2 to L3, there are bathers and the water level is high, so that the person is drowning. Judge that there is a risk.
(4) When the pyroelectric sensor 172 does not detect the movement and the detected water level of the sensor 32 changes from L2 to L3, it is determined that there is a bather and that the person is in a drowning state.
The example of determining the bathing state shown here is an example, and the bathing state may be determined in more detail from the detection results of each sensor.

<Processing procedure for bathing monitoring>
FIG. 16 monitors the bathing according to the second embodiment and shows a processing procedure for detecting an abnormality in the bathroom. This processing procedure is an example of computer processing in the abnormality determination unit 10.
Initialization is performed prior to the start of bathing monitoring (S61). After this initialization, the detection information of the pyroelectric sensor 172 and the water level sensor 32 is taken in (S62), and it is determined whether or not the bathing state is abnormal due to drowning by using these detection information (S63). If there is no possibility that the bather is drowning (NO in S63), the monitoring of the bathing condition is continued.
If it is determined that the bather may be drowning (YES in S63), a call message is notified (S64). As a result of the call message notification, it is determined whether there is a reaction or there is a change in the detection result of each sensor (S65). The reaction of the bather may be determined from, for example, pressing the response button 74 of the bathroom remote controller 52 or capturing voice by the microphone 52.

If there is no change in the reaction of the bather or the detection result of the pyroelectric sensor 172 or the sensor 32 (NO in S65), it is determined that the bather is drowning, and the drain plug 6 is opened (S66). Discharge the bathtub water BW.
Further, when there is a change in the reaction of the bather or the detection result of the sensor (YES in S65), it is determined whether the drowning state has disappeared after the measurement for a predetermined time (S67) (S68). The elimination of the drowning state may be determined by combining, for example, the detection information of the pyroelectric sensor 172 and the detection information of the water level sensor 32.
The time measurement (S67) from this call message notification is, for example, a process for determining whether or not the error of the measurement result is sharply distinguished or is a temporary recovery, and the measurement time is the safety for the bather and the bathing equipment. It may be set in consideration of the convenience of.
Then, when the drowning state is not resolved (NO in S68), the drain plug 6 is opened (S66) and the bathtub water BW is discharged. If the drowning state has been resolved (YES in S68), the normal bathing monitoring is resumed.

<Effect of Example 2>
According to this Example 2, the following effects can be obtained.
(1) By combining the operation information of the bather and the water level information of the bathtub water BW, the abnormal bathing state due to drowning is monitored, and the bathtub water BW is discharged so that the bather can breathe. The safety of the bathtub is enhanced.
(2) After grasping the possibility of the bather's drowning state, the state is confirmed by calling a message, and the abnormal bathing due to drowning is confirmed according to the response state and drained to ensure the safety of bathing. Convenience can be ensured without unnecessary wastewater treatment when the bath is not in an abnormal bathing state.

[Other embodiments]

(1) In the above-described embodiment and embodiment, the drain plug is used when the abnormal bathing state due to the drowning of the bather is determined based on the biological information of the bather and the water level information and the monitoring information of the presence / absence state. It has been shown that the bath water BW is discharged with the 6 in the open state, but the present invention is not limited to this. In the bathroom abnormality detection system 2, for example, even if the bather is not in a drowning state, the detection information of the (living body) sensor 8 indicates that there is a risk of drowning, such as dozing, physical abnormality, or cardiopulmonary arrest. It may be determined that the occurrence of such as is an abnormal bathing state, and a part or all of the bathtub water BW may be discharged.
If there is a risk of drowning, for example, in addition to increasing the number of times of calling message processing, it is possible to set a condition that makes it difficult to discharge the bathtub water BW by measuring the time until the response.
(2) In the above embodiments and examples, the case where the heart rate detected by the heart rate sensor is used as the judgment of the drowning state of the bather is shown, but the present invention is not limited to this. As the sensor 8 for detecting the biological information of the bather, for example, an infrared sensor for detecting the body temperature of the bather, an electroencephalograph for detecting the brain wave of the bather, or the like may be used.
(3) In the above embodiment, the case where the judgment is made only from the change in the heart rate information of the bather is shown as the judgment of the abnormal bathing state due to drowning, but the judgment is not limited to this. The drowning state may be determined by combining the temperature information of the bathtub water BW together with the heart rate information. That is, it may be possible to store information indicating the relationship between the hot water temperature and the heartbeat state due to bathing, and to analyze in detail whether the change in the heartbeat due to the normal bathing state or the change when the person is in a drowning state. .. This makes it clear whether the heart rate rises due to the rise in body temperature at the start of bathing or the rise in heart rate due to apnea due to drowning during bathing or heat shock during bathing. It can be grasped more quickly and accurately.

As described above, the most preferable embodiment of the present invention has been described. The present invention is not limited to the above description. Various modifications and modifications can be made by those skilled in the art based on the gist of the invention described in the claims or disclosed in the form for carrying out the invention. Needless to say, such modifications and modifications are included in the scope of the present invention.

According to this bathroom abnormality detection system, the occurrence of abnormalities in the bather and the abnormal bathing state are determined from the biological information, and the drowning state due to the forced discharge of the bathtub water BW is eliminated to secure the bather's breathing and take a bath. It is useful because it can increase the safety of the bathtub.

2, 30, 40, 170 Bathroom abnormality detection system 4 Bathtub 6 Drain plug 8, 32, 42 Sensor 10 Abnormality judgment unit 12 Control unit 14 Message notification unit 16 Abnormality notification unit 18 Remote control device 20 Drain pipe 50 Water heater 52 Bathroom remote control 54 Kitchen remote control 56 Hot water supply control unit 58, 138, 148 Processor 60 Sound sensor circuit unit 62 Communication control unit 64 Transmission line 66 Bathroom remote control unit 68 Display unit 70 Speaker 72 Microphone 74 Response button 76 Kitchen remote control unit 78 Display unit 80 Speaker 82 Microphone 84 Terminal 86 External system 90 Water supply pipe 92 Heat exchanger 94 Bypass pipe 96 Mixing valve 98 Temperature sensor 100 Burner 102 Hot water supply pipe 104 Temperature sensor 106 Hot water supply pipe 108 Hot water supply pipe 110 Reheating pipe 110-1 Return pipe 110-2 Outgoing pipe 112 On-off valve 114 Heat exchanger 116 Burner 118 Circulation pump 120 Temperature sensor 130 Control unit 132, 140, 150 Memory unit 134, 142, 154 Input / output unit (I / O)
136 System communication unit 137 Burner combustion control unit 144, 152 System communication unit 146, 156 Voice modulation / demodulation unit 158, 162 Switch (SW)
160, 164 LEDs
172 Pyroelectric sensor 174 Sensor area

Claims (8)

It is a bathroom anomaly detection system that detects abnormalities in bathers.
A biosensor that acquires biometric information of the person in the bathtub,
A drain plug for draining hot water in the bathtub and
A message notification means for notifying bathers of a call message,
The measurement result of the biometric information is acquired one by one from the biometric sensor, it is determined from the measurement result that a person is in the bathing, and the biometric information based on the measurement result from the first timing to the second timing. The possibility of a drowning state is determined from the transition state of the above, and according to the determination result, it is detected at the fourth timing after a predetermined time has elapsed from the third timing at which the bather is called by the message notification means. An abnormality determining means for determining an abnormal bathing state from a change state of the biological information based on a comparison result between the biological information and the biological information detected at the second timing .
When the abnormality determination means determines that the bathing state is abnormal, the control means for opening the drain plug to drain the hot water in the bathtub and the control means.
A bathroom anomaly detection system characterized by being equipped with. The first aspect of the present invention is characterized in that the abnormality determining means determines from the acquired biological information whether or not the person is drowned in hot water in the bathtub from a sudden change in the heart rate of the person in the bathtub. The described bathroom anomaly detection system. The bathroom abnormality detection according to claim 1, wherein the abnormality determination means determines that the abnormal bathing state is obtained when there is no change in the biological information from the biological sensor acquired after the notification by the message notification means. system. The bathroom abnormality detection system according to any one of claims 1 to 3, wherein the control means controls the opening / closing time or the amount of drainage of the drain plug, and discharges a predetermined amount of hot water in the bathtub. In addition, it is equipped with a bathing monitoring sensor that detects whether or not you are taking a bath.
When the bathing monitoring sensor detects the bathing state and the biological information detected by the biological sensor indicates an abnormal state, the abnormality determining means determines that the bather is drowning in the abnormal bathing state. The bathroom abnormality detection system according to any one of claims 1 to 4, which is characterized. In addition, it is equipped with a person monitoring sensor that detects the presence or absence of a person in the bathtub by the sensor area of the presence or absence of a person.
The abnormality determining means is characterized in that when the biological sensor acquires biological information and the human monitoring sensor detects the absence of a person, it determines that the bather is in a drowning abnormal bathing state. The bathroom abnormality detection system according to any one of claims 1 to 5. The bathroom abnormality detection system according to claim 3, wherein the message notification means is installed in a remote control device in the bathroom. The bathroom abnormality detection system according to claim 1 to 7, further comprising a terminal portion to be linked with an external system, and the terminal portion enables transmission / reception of information including a determination output of the abnormal bathing state.

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