JP5048568B2 - Bathroom facilities - Google Patents

Description

  The present invention relates to a bathroom facility.

When a person is bathed in hot water in a bathtub as a bather, it is considered that the physical condition may change due to the body's temperature change. On the other hand, Patent Document 1 describes a configuration in which electrodes for measuring a bather's electrocardiogram waveform and heart rate are respectively provided on three of the inner surfaces of the bathtub. According to this configuration, when an abnormality occurs in the bather's electrocardiogram waveform or heart rate during bathing, that is, when a change occurs in the physical condition of the bather, the change in physical condition can be detected. In addition, when the electrocardiogram waveform or heart rate becomes abnormal, the temperature of the hot water is automatically lowered, so that even if the electrocardiogram waveform or heart rate becomes abnormal, recovery of the abnormality is promoted. it can.
Japanese Patent Laid-Open No. 10-174678

  However, in the case of the configuration described in Patent Document 1, in order to accurately measure the bather's electrocardiogram waveform and heart rate in the bathtub, either one of the limbs is in contact with each electrode. There must be. In this case, the bather's electrocardiogram waveform and heart rate cannot be measured correctly unless the body orientation of the bather is assumed to be a normal direction assumed in advance. In other words, even if there is a change in the physical condition of the bather, the change in the physical condition cannot be detected correctly. As a result, there is room for improvement with regard to the configuration for health management during bathing.

  Accordingly, an object of the present invention is to provide a bathroom facility that can correctly grasp the body orientation of a bather and, consequently, can appropriately manage the health of the bather.

  The present invention employs the following means in order to solve the above problems.

  The first invention includes a bathtub, a biological information detection unit that detects biological information when at least a part of the body of a bather in the bathtub is in contact with the inner surface of the bathtub, and the biological information detection unit. In a bathroom facility comprising health state determination means for performing a health state determination regarding the health state of the bather based on the detected biological information, the biological information detection unit detects a specific part of the body of the bather It has body posture determination means for detecting the biological information as a target and determining the body posture of the bather in the bathtub based on the biological information of the specific part detected by the biological information detection unit. This is a bathroom facility.

  According to the first invention, when the bather is immersed in hot water in the bathtub, that is, when the bather is bathing, the biological information is detected, and the health condition is determined based on the biological information. Is called. For this reason, even if a change occurs in the physical condition of the bather during bathing, the change in the physical condition can be detected. In addition, since the body position of the bather is determined based on the biological information in which a specific part of the body of the bather is a detection target, the body direction of the bather can be acquired. Therefore, it is possible to detect biological information necessary for health condition determination from each part of the body in accordance with the body orientation of the bather. As a result, the body orientation of the bather can be correctly grasped, and consequently the health management of the bather can be appropriately performed.

  In the second invention, the living body information detection unit has a plurality of detection positions for detecting the living body information, and the body position determination means is the living body at the plurality of detection positions detected by the living body information detection unit. The body position of the bather is determined based on the information.

  According to the second aspect of the invention, the biological information detection unit determines the body position of the bather based on the biological information at a plurality of detection positions. In this case, since each biological information detected from a plurality of parts in the body of the bather has different characteristics, the position of the specific part of the bather can be acquired from the detection position of the biological information detection unit. it can. As a result, the body orientation of the bather can be acquired.

  In 3rd invention, the said bathtub makes a rectangular or substantially rectangular shape in planar view, and makes the longitudinal direction the direction of bathing, The said biological information detection part is on the inner surface which opposes in the longitudinal direction of the said bathtub. Each of the biological information is detected with the back and feet of the bather as a specific part in the bathing state, and the body position determination means includes the biological information on the back side detected by the biological information detection unit and the body information The body position of the bather is determined based on the biometric information on the foot side.

  According to the third aspect of the invention, since the longitudinal direction is the direction of bathing in the bathtub, the bather is leaning against one of the inner surfaces facing in the longitudinal direction (in other words, each inner surface on the short side) and the other Take a bath with your legs extended to the side. Here, since the biological information detection units are respectively arranged on the inner surfaces facing in the longitudinal direction, the biological information on the back side is detected by the detection unit located on the back side among the biological information detection units, and the foot side The biometric information on the foot side is detected by the detection unit located at. In this case, since the characteristics of the biometric information on the back side and the biometric information on the foot side are different from each other, the information can be discriminated. Therefore, the posture determination is performed based on the biometric information on the back side and the biometric information on the foot side, whereby the position of the back and feet of the bather, that is, the body orientation of the bather can be acquired.

  According to a fourth aspect of the invention, there is provided heart rate information acquisition means for acquiring heart rate information related to a heart rate from the back side biometric information and the foot side biometric information, and the body position determination means is acquired by the heart rate information acquisition means. The body position of the bather is determined based on the heart rate information on the back side and the heart rate information on the foot side.

  According to the fourth invention, the heart rate information on the back side and the heart rate information on the foot side are respectively acquired, and the posture determination is performed based on the heart rate information. Here, when the heart rate information on the back side and the heart rate information on the foot side are compared, the features of the heart rate information are different. Therefore, the body posture of the bather can be acquired by performing the posture determination based on the heartbeat information.

  In a fifth aspect of the invention, the heart rate information acquisition unit acquires an electrocardiogram waveform as the heart rate information from the biological information on the back side and the biological information on the foot side, and the body position determination unit uses the heart rate information acquisition unit. The body position of the bather is determined based on the amplitudes of the acquired back-side electrocardiogram waveform and foot-side electrocardiogram waveform.

  According to the fifth aspect, as the heartbeat information, an electrocardiogram waveform on the back side and an electrocardiogram waveform on the foot side are respectively acquired, and the posture determination is performed based on the electrocardiogram waveforms. Here, due to the fact that the back is closer to the heart, the amplitude of the electrocardiogram waveform on the back side is larger than the amplitude of the electrocardiogram waveform on the foot side. Therefore, the posture of the body of the bather can be acquired by performing the posture determination based on the amplitude of the electrocardiogram waveform.

  In a sixth aspect of the invention, the health condition determination means performs the health condition determination based on at least one of the back-side heartbeat information and the foot-side heartbeat information.

  According to the sixth invention, the heartbeat information on the back side and the heartbeat information on the foot side are used not only for body posture determination but also for health state determination. In this case, the heartbeat information is effectively used. In addition, when taking a bath, it is considered that the body is subject to changes in the temperature of the environment by taking off clothes or soaking in hot water, and there is a higher possibility that heart disease will occur than usual. When a heart disease occurs, abnormalities are included in the heart rate information. Therefore, it is effective to acquire the heart rate information during bathing and determine the health state based on the heart rate information.

  In a seventh aspect of the invention, there is provided body surface temperature acquisition means for acquiring a body surface temperature on the back side of the body based on the biological information on the back side, and the health condition determination means is acquired by the body surface temperature acquisition means. The health condition is determined based on the body surface temperature on the back side.

  According to the seventh aspect, the biological information on the back side is used not only for body posture determination but also for health state determination. In this case, the biological information on the back side is effectively used. Also, bathers may become “hot” during bathing. In other words, it may go up. When a bather gets hot, the body temperature on the back side is significantly higher than the normal value, so the body surface temperature on the back side is obtained during bathing, and the health status based on the body surface temperature on the back side It is effective to make a determination.

  In an eighth aspect of the invention, the body surface temperature acquisition unit acquires a foot side body surface temperature of the body based on the foot side biological information, and the health condition determination unit is acquired by the body temperature information acquisition unit. The health condition is determined based on the difference between the body surface temperature on the foot side and the body surface temperature on the back side.

  According to the eighth invention, the biometric information on the foot side is used not only for body posture determination but also for health state determination. In this case, the biometric information on the foot side is effectively utilized. Further, the health condition is determined based on the difference between the body surface temperature on the back side and the body surface temperature on the foot side. When the bather gets hot, the temperature difference between the body surface temperature on the back side and the body surface temperature on the foot side becomes smaller than when the bather is not hot. Therefore, in order to detect that the bather has risen, it is effective to determine the health condition based on the temperature difference during bathing.

  In 9th invention, it is each arrange | positioned on the inner surface which opposes in the longitudinal direction of the said bathtub, Each water discharge device based on the determination result of the water discharge apparatus which discharges hot water toward the opposite inner surface, and the said body position determination means A water discharge device on the foot side of the bather among the devices is set as a control target, and water discharge control means for controlling the operation of the water discharge device set as the control target is provided.

  According to the ninth aspect, when the bather is leaning on one of the inner surfaces facing in the longitudinal direction, the hot water is discharged from the water discharger on the foot side of the bather. Here, hot water is discharged from the water discharge device toward the inner surface on the opposite side. For this reason, if hot water is discharged from the water discharge device located on the back side of the bather, the hot water may be blocked by the back or the like and may not cover the whole body, but hot water is released from the water discharge device located on the foot side. Then, the hot and cold water can be bathed in the whole body of the bather without being blocked by a part such as the back.

  In a tenth aspect of the invention, the apparatus includes a bathroom device that operates to adjust an environment in the bathroom, and a bathroom control unit that performs operation control of the bathroom device, and the health state determination unit includes a health condition of the bather. Is determined to correspond to one of a plurality of stages, and the bathroom control means executes predetermined prescribed processing step by step according to the stage corresponding to the health condition of the bather with the bathroom device as a control target.

  According to the tenth aspect of the invention, the operation control of the bathroom equipment is performed in stages according to the health condition of the bather. For this reason, the environment in a bathroom can be adjusted in steps according to the health condition of each bather. For example, when a change occurs in the physical condition of the bather, the environment in the bathroom can be changed in stages according to the content and degree of the change, and the physical condition can be recovered.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. In the present embodiment, a bathroom provided in a building such as a house is embodied, and bathroom facilities for the bathroom are provided in the building. FIG. 1 is a schematic diagram for explaining the configuration of the bathroom 11. FIG. 1 shows a state in which a person is in a bathtub 41 in the bathroom 11, (a) is a plan view, and (b) is a front perspective view including an electrical configuration.

  In the bathroom 11 shown in FIG. 1, hot water is stored in the bathtub 41 by supplying water from a water supply unit (not shown) such as a water tap. The bathtub 41 is formed in a rectangular shape in plan view, and the longitudinal direction thereof is the direction in which the bather extends his / her body. Moreover, it is the magnitude | size and the depth which a bather can extend | stretch a leg | limb toward the short side of the bathtub 41, and can sit down by extending a body to a longitudinal direction.

  In the side part 44 of the bathtub 41, the water discharge part 43 is provided in each of the side surface of the short side. The water discharge part 43 is arrange | positioned at the upper part of the said side surface, and discharges hot water respectively in the horizontal direction toward the side surface of the short side which opposes. The water discharge part 43 discharges water from the front side for the bather when the bather sits in the bathtub 41. In this case, the whole body of the bather (or a part other than the head) is discharged. Discharge hot water as a target. Therefore, if the hot water is not stored in the bathtub 41 (or if the water level in the bathtub 41 is low), the bather may have hot water in the whole body regardless of which side of the bathtub 41 is facing. It is possible to bathe. In addition, the structure which sprays hot water in a shower shape may be sufficient as the water discharge part 43, and the structure which sprays hot water in a mist form may be sufficient as it.

  The bathtub 41 has a bathtub sensor 47 as a biological information detection unit that detects biological information of the bather. The bathtub sensor 47 is provided on the side portion 44 of the bathtub 41 so that a part of the bather's body comes into contact with the side portion 44 of the bathtub 41 to detect the biological information of the bather 41. A bio-impedance detection unit configured to include an electrode, a bio-potential detection unit configured to detect a bio-potential, a piezoelectric sensor unit configured to include a piezoelectric element, and a body surface temperature as a body surface temperature And a surface temperature detection unit.

  The bathtub sensor 47 is formed in a sheet shape, and is arranged as a first bathtub sensor 47a and a second bathtub sensor 47b on each of the inner surfaces facing in the longitudinal direction in the side portion 44 of the bathtub 41. . In other words, the bathtub sensors 47a and 47b are respectively disposed on the opposite side surfaces of the bathtub 41 facing each other. And each becomes a different detection position. In addition, each bathtub sensor 47a, 47b is located below the water discharge portion 43 inside the bathtub 41, so that even if the bather leans against any short side surface in the bathtub 41, the bather's The back and the base of the arm (for example, the back side of the upper arm) contact one of the bathtub sensors 47a and 47b, and the bather's foot (for example, the sole of the foot) is the other of the bathtub sensors 47a and 47b. To come into contact. Therefore, even if the bather faces in any one of the short sides in the bathtub 41, bioimpedance, biopotential, respiration rate, body surface temperature, and the like are detected as biometric information from the back and toes. In addition, each bathtub sensor 47a, 47b is arranged so as to straddle from the side part 44 to the bottom part 48 in the bathtub 41, and detects biometric information from the buttocks in addition to the back and feet of the bather. ing.

  Further, a drainage device 49 for discharging hot water in the bathtub 41 is provided at the bottom 48 of the bathtub 41. The drainage device 49 has a drainage port and a drainage valve that opens and closes the drainage port. By closing the drainage port with the drainage valve, water can be stored in the bathtub 41, and the drainage port is opened with the drainage valve. This makes it possible to discharge hot water from the bathtub 41.

  Next, an electrical configuration in the bathroom 11 will be described.

  In FIG.1 (b), the bathroom server 21 has the microcomputer which consists of CPU, various memories, etc., and performs operation control of bathroom equipment. Moreover, the bathroom server 21 has a server operation unit 21a in which a user performs a bathing operation, and the user can set the control content of the bathroom device by performing an input operation on the server operation unit 21a. It has become. The bathroom server 21 has a communication function and can communicate with an external facility such as a medical institution.

  The bathroom server 21 is connected to the water discharge unit 43 and the drainage device 49 as bathroom devices. In addition, as other bathroom equipment, a bathroom air conditioner 51 that adjusts the space temperature in the bathroom 11, a bathroom display monitor 52 that displays the health condition of the bather, and an abnormality in the bather's health condition are reported. A display lamp 53 to be connected, an oxygen supply device 54 for adjusting the oxygen concentration in the bathroom 11, and a hot water temperature adjusting device 55 for adjusting the temperature of hot water stored in the bathtub 41 are connected.

  The bathroom server 21, the bathroom display monitor 52, and the display lamp 53 are installed, for example, on the wall of the bathroom 11 in a state of being integrally accommodated in one case. The bath server 21 is configured to identify the bather by performing an input operation on the server operation unit 21a by the bather during bathing. The bathroom display monitor 52 allows the bather to see the display screen in a state where the bather is immersed in hot water in the bathtub 41. The display lamp 53 is lit and blinked by the bather. It can be done. The bathroom server 21, the bathroom display monitor 52, and the display lamp 53 may be individually installed, and the installation location may be a dressing room adjacent to the bathroom 11. In addition to the bathroom display monitor 52 and the display lamp 53, a speaker or the like may be connected to the bathroom server 21 as a notification means.

  The bathroom server 21 controls the operation of the bathroom equipment by outputting a command signal. For example, by outputting a command signal to the water discharge unit 43, the water discharge unit 43 that discharges hot water from a plurality of the water discharge units 43 is selected or the water discharge amount is adjusted, and the command signal is output to the drainage device 49. , The hot water is discharged from the drainage device 49 and the water level (water amount) of the bathtub 41 is lowered. Moreover, the space temperature of the bathroom 11 is adjusted by outputting a command signal to the bathroom air conditioner 51, and oxygen is supplied into the bathroom 11 by outputting the command signal to the oxygen supply device 54. Further, by outputting a command signal to the bathroom display monitor 52, the display content on the bathroom display monitor 52 is set, and by outputting a command signal to the display lamp 53, the display lamp 53 is turned on or off. Blink.

  A first bathtub sensor 47a and a second bathtub sensor 47b are connected to the bathroom server 21, and detection signals are input from the bathtub sensors 47a and 47b, respectively. The bathroom server 21 acquires physiological data and behavior data of the bather based on the detection signals of the bathtub sensors 47a and 47b, and stores the data.

  Describing the acquisition of physiological data, the bathroom server 21 acquires bioimpedance from the detection result of the bioimpedance detection unit included in the detection signals of the bathtub sensors 47a and 47b, and the bioimpedance, height, weight, etc. Based on such personal information, physiological data relating to body composition such as body fat percentage, muscle mass, estimated bone mass, visceral fat mass, and basal metabolic rate are calculated. For visceral fat, a visceral fat level obtained by evaluating the visceral fat amount in a plurality of stages may be calculated instead of the visceral fat amount. Moreover, the bathroom server 21 acquires a bioelectric potential from the detection result of the bioelectricity detection unit, and calculates an electrocardiogram waveform including information such as a heart rate as physiological data based on the bioelectric potential. Further, the pulse rate, respiration rate, and body movement per predetermined time are calculated as physiological data from the detection result of the piezoelectric sensor unit, and the body surface temperature is calculated as physiological data from the detection result of the surface temperature detection unit.

  Explaining the acquisition of the behavior data, the bathroom server 21 calculates the elapsed time that the bather was continuously immersed in the hot water in the bathtub 41 as the bathing time based on the detection signals of the bathtub sensors 47a and 47b. The bathing time is acquired as action data. In addition, you may acquire the bathroom stay time which the bather stayed in the bathroom 11 as action data.

  Furthermore, the bathroom server 21 determines whether or not an abnormality has occurred in the physical condition of the bather based on physiological data and behavior data. For example, for physiological data, for items represented by numerical values such as heart rate, pulse rate, body surface temperature, etc., compared with past numerical values stored in various memories, the current numerical value is larger than the normal value range or If it is smaller, it is determined to be abnormal. Similarly, the bathing time in the behavior data is determined to be abnormal when the current bathing time is significantly longer than the normal time range.

  Further, in the physiological data, for the electrocardiogram waveform as shown in FIG. 2, the current state is determined based on the shape of the waveform and the amplitude. When a heart disease occurs, an abnormality occurs in the electrocardiogram waveform. For example, when the heart disease is arrhythmia, the interval between the R wave and the next R wave is not constant. That is, the interval RR1, the interval RR2, and the interval RR3 do not have a constant size. In addition, when the heart disease is myocardial infarction, the portion including the T wave in the electrocardiogram waveform rises. That is, when frequency analysis is performed, an abnormality occurs in the frequency distribution. In these cases, it is determined that the ECG waveform item is abnormal. Furthermore, the amplitude H of the electrocardiogram waveform acquired from the back side of the person is larger than the amplitude H of the electrocardiogram waveform acquired from the limb side due to the distance to the heart or the like.

  Next, bathroom device control processing for controlling bathroom devices executed by the bathroom server 21 will be described with reference to the flowchart of FIG.

  In FIG. 3, in step S101, a personal authentication process for specifying a bather is performed. For example, the bather is identified based on information input from the operation unit of the bathroom server 21 by the bather. In addition, if the body detection sensor for detecting the physical characteristics of the bather is provided around the entrance / exit of the bathroom 11 and the dressing room, the bather is identified based on the detection signal input from the body detection sensor. May be.

  In step S102, it is determined whether a detection signal is received from the bathtub sensors 47a and 47b. If the detection signal has not been received, the processing is terminated as it is. If the detection signal has been received, physiological data and action data are acquired based on the detection signal in step S103. For example, the body surface temperature and heart rate of the bather's back and feet are acquired as physiological data, or the time of bathing in hot water, that is, the bathing time is acquired as behavior data. In step S104, a command signal is output to the bathroom display monitor 52, and the physiological display data is displayed on the bathroom display monitor 52 as the health condition of the bather, or the action data is displayed as the bathing situation.

  In step S105, the body position of the bather in the bathtub 41 is determined based on the physiological data. More specifically, an electrocardiogram waveform on the first bathtub sensor 47a side and an electrocardiogram waveform on the second bathtub sensor 47b side are acquired based on the detection signals detected from the respective bathtub sensors 47a and 47b. Then, the electrocardiogram waveforms are compared, and the electrocardiogram waveform having the larger amplitude is determined as the back-side electrocardiogram waveform. That is, it is determined which of the bath sensors 47a and 47b is in contact with the back of the bather, and the body position of the bather is determined. In this embodiment, the electrocardiogram waveform on the back side is adopted as the physiological data, but the electrocardiogram waveform on the foot side may be adopted. In addition, since it is thought that the bather is leaning on the side surface of the short side in the bathtub 41 during bathing, an electrocardiogram waveform can be acquired only on one side of the sensors 47a and 47b for each bathtub. However, the electrocardiogram waveform can be specified as the electrocardiogram waveform on the back side.

  In step S106, it is determined whether or not the bathing time is normal. In addition, when bathroom stay time is acquired, you may determine whether bathroom stay time is normal. In short, it may be determined whether or not the action data at the time of bathing is normal. When bathing time is not normal, it progresses to Step S107 and performs bathing time abnormality information processing. For example, when the current bathing time length is longer than the normal bathing time length, a command signal is output to the bathroom display monitor 52, and the bathing monitor 52 has secured a sufficient bathing time. The display lamp 53 is displayed or a command signal is output to the display lamp 53, and the display lamp 53 is turned on or blinked. On the other hand, if the bathing time is normal, for example, if the current bathing time length is shorter than the normal bathing time length, the process proceeds directly to step S108.

  In step S108, it is determined whether or not there is an abnormal item in the physiological data. That is, it is determined whether or not an abnormality has occurred in the physical condition of the bather. For example, it is determined whether there is an abnormality in the heart rate, pulse rate, body surface temperature, or electrocardiogram waveform. If the bathing time is normal and there are no abnormal items in the physiological data, this process is terminated. If there are abnormal items in the physiological data, whether the electrocardiogram waveform and heart rate in the physiological data are normal in step S109. Determine whether or not. If the electrocardiogram waveform and the heart rate are not normal, the process proceeds to step S110 to perform a heartbeat abnormality notification process. For example, an indication that the electrocardiogram waveform or heart rate is not normal is displayed on the bathroom display monitor 52, or the display lamp 53 is lit or blinked. If there is an abnormality in the electrocardiogram waveform, an emergency call may be made assuming that a heart disease has occurred. For example, the occurrence of abnormality is notified to a medical institution such as a hospital using a communication function.

  If the electrocardiogram waveform and the heart rate are normal, the process proceeds to step S111 to determine whether the body surface temperature is normal. That is, it is determined whether or not the bather is in the “hot” state. More specifically, the body surface temperature on the first bathtub sensor 47a side and the body surface temperature on the second bathtub sensor 47b side are calculated based on the detection results of the bathtub sensors 47a and 47b. Based on the determination result of the body posture determination, one of these body surface temperatures is acquired as the body surface temperature on the back side, and the other is acquired as the body surface temperature on the foot side. In addition, based on the body posture determination process in step S105, it is preferable to specify the back side and the foot side among the bathtub sensors 47a and 47b.

  When the bather is immersed in hot water in the bathtub 41, the body surface temperature is high even if it is not hot, but when it is hot, the body surface temperature is extremely high. Therefore, it is possible to determine whether or not the body surface temperature on the back side and the foot side is in a hot state by comparing the body surface temperatures with normal values. In general, the body surface temperature on the back side of a person is higher than the body surface temperature on the toe side, but the temperature difference when climbing is smaller than the temperature difference when not climbing. Therefore, it is possible to determine whether or not the body is in a hot state by comparing the body surface temperature on the back side and the body surface temperature on the foot side. By the way, the temperature difference between the body surface temperature on the back side and the body surface temperature on the foot side is about 0 to 2 ° C. when it is hot and about 5 ° C. when it is not hot.

  If the body surface temperature is not normal, the process proceeds to step S112, and a hot flash notification process is performed. For example, the display of the bathroom display monitor 52 is displayed to prompt the user to get out of the bathtub 41, or the display lamp 53 is lit or blinked. In step S113, a hot flash recovery process is performed when the bather does not leave the bathtub 41 despite the hot flash notification process. The hot flash recovery process is a process of executing the operation control of the bathtub device step by step when the bather gets hot, and details thereof will be described later.

  On the other hand, when the body surface temperature is normal (when step S111 is YES), it is considered that items other than the electrocardiogram waveform, heart rate, and body surface temperature are abnormal in the physiological data. In this case, the process proceeds to step S114, and abnormality notification processing is performed. For example, a command signal is output to the bathroom display monitor 52 and the display lamp 53 to notify that there is an abnormality in the health condition.

  The hot flash recovery process executed in step S113 will be described with reference to the flowchart of FIG. In FIG. 4, as the hot flash recovery process, a multi-stage process (in this embodiment, a four-stage process including a first stage process to a fourth stage process) having different process contents is executed.

  In FIG. 4, in step S <b> 201, it is determined whether or not the first stage process has been executed among the staged processes for which the bathtub apparatus is a control target. When the first stage process has not been executed, the process proceeds to step S202, and the first stage process is executed. In the first stage process, a command signal is output to the hot water temperature adjusting device 55 to reduce the temperature of the hot water stored in the bathtub 41. For example, cold water is supplied into the bathtub 41. As a result, the body surface temperature is lowered to recover the hot flash. In step S203, the first stage process is terminated. For example, when a predetermined time has elapsed since the start of the first stage process, a command signal is output to the hot water temperature adjusting device 55, and the temperature of the hot water stored in the bathtub 41 is changed to the first stage process. Return to previous temperature. For example, hot water is supplied into the bathtub 41.

  If the first stage process has been executed, i.e., if the bather does not recover from the hot flash even if the first stage process is executed, the process proceeds to step S204 to determine whether the second stage process has been executed. To do. If the second stage process has not been executed, the process proceeds to step S205 to execute the second stage process. In the second stage process, a command signal is output to the drainage device 49, the hot water is discharged from the drainage device 49, and the water level in the bathtub 41 is lowered. Accordingly, for example, the upper body of the bather is exposed on the surface of the hot water and the body temperature is lowered, thereby recovering the hot condition and avoiding the bather's head being immersed in the hot water.

  In step S206, along with the execution of the second stage process, a command signal is output to the water discharger 43, hot water is discharged from the water discharger 43, and the bather's whole body is showered. In this case, based on the determination result of the body position determination, the water discharger 43 located on the foot side of the bather performs water discharge. Thereby, a bather's whole body can be showered and it can avoid that a bather's body cools. As a result, the hot water can be prevented from being cooled while recovering from the hot flash. By the way, if the water discharge portion 43 located on the back side of the bather is allowed to discharge water, the bather cannot be taken a shower due to being blocked by the back, and the bather may be cooled by hot water.

  In step S207, the second stage process is terminated. Similarly to the first stage process, for example, when a predetermined time has elapsed since the start of the second stage process, a command signal is output to the drainage device 49 to stop drainage from the drainage device 49 and to discharge water. The water discharge from the part 43 is continued, and the water level in the bathtub 41 is raised. And if the water level in the bathtub 41 returns to the water level before execution of a 2nd step process, a command signal will be output with respect to the water discharge part 43, and supply of the hot water into the bathtub 41 will be stopped.

  If the second stage process has been executed, that is, if the bather does not recover from the hot flash even if the first stage process and the second stage process are executed, the process proceeds to step S208, and the third stage process has been executed. It is determined whether or not. If the third stage process has not been executed, the process proceeds to step S209 to execute the third stage process. In the third stage process, a command signal is output to the bathroom air conditioner 51 and the oxygen supply device 54 to perform air conditioning control. For example, the space temperature in the bathroom 11 is lowered or the oxygen concentration in the bathroom 11 is increased. This further promotes recovery from the hot flash. Note that oxygen may be blown to the bather. In step S210, the third stage process is terminated. For example, when a predetermined time has elapsed since the start of the third stage process, a command signal is output to the bathroom air conditioner 51 and the oxygen supply device 54, and the temperature of the space in the bathroom 11 is set to the third stage process. While returning to the previous temperature, the supply of oxygen into the bathroom 11 is stopped.

  If the third stage process has been executed, that is, if the bather does not recover from the hot flash even if the first stage process to the third stage process are executed, the process proceeds to step S211 and the fourth stage process is executed. In the fourth stage process, an emergency call is made. For example, the occurrence of abnormality is notified to a medical institution such as a hospital using a communication function.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  When the bather is immersed in hot water in the bathtub 41, at least one of the first bathtub sensor 47 a and the second bathtub sensor 47 b, even if the bather leans on any of the short side surfaces in the bathtub 41. Thus, the biological information on the back side of the bather is detected. Based on the biological information on the back side, it is determined which of the bath sensors 47a and 47b is in contact with the bather's back. That is, the direction of the bather's body is determined. In this case, for example, since the body surface temperature on the back side and the body surface temperature on the foot side can be acquired for each of the bathtub sensors 47a and 47b, it can be detected even when the bather becomes hot. . As a result, the body orientation of the bather can be correctly grasped, and consequently the health management of the bather can be appropriately performed.

  Which one of the electrocardiogram waveform on the first bathtub sensor 47a side and the second bathtub sensor 47b side is the electrocardiogram waveform on the back side, based on the amplitude of the electrocardiogram waveform by the bathroom server 21? Determined. This makes it possible to determine which of the bathtub sensors 47a and 47b is in contact with the bather's back. That is, the direction of the bather's body can be determined.

  When the bather is in a hot state, the first stage process to the fourth stage process are executed in stages. For this reason, the environment in the bathtub 41 or the bathroom 11 can be adjusted step by step according to the content and level of the hot flash. Therefore, recovery from the hot flash state can be suitably achieved. Moreover, when the water level in the bathtub 41 is lowered as the second stage treatment, hot water is discharged from the water discharge portion 43. In this case, since the water is discharged from the water discharge portion 43 located on the foot side of the bather, the whole body of the bather can be showered. Accordingly, it is possible to prevent the hot water from being cooled while recovering from the hot flash.

(Other embodiments)
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  (1) In the above-described embodiment, the bathtub sensors 47a and 47b are respectively disposed on the inner surfaces facing in the longitudinal direction of the bathtub 41, but in addition to or instead of the inner surfaces in the longitudinal direction, You may each arrange | position at the inner surface which opposes in a transversal direction. For example, the bathtub sensors 47 a and 47 b are provided so as to extend along the inner peripheral surface of the bathtub 41. In this case, even if the bather leans on one of the long side surfaces, the body orientation of the bather can be acquired by determining the position of the bather's back.

  (2) In the said embodiment, although the bathtub 41 is formed in the shape which makes a rectangle in planar view, it may be formed in the shape which makes a square in planar view, and may be formed in the ellipse shape. When formed in a square shape in plan view, the bathtub sensors 47a and 47b may be provided so as to extend along the inner peripheral surface of the bathtub 41 as in (1). Thereby, even if a bather leans in any of each inner surface of bathtub 41, the direction of the body of the bather can be acquired.

  (3) In the above embodiment, the bathroom server 21 acquires the electrocardiogram waveform as the heartbeat information. However, the bathroom server 21 may acquire a heartbeat waveform indicating the heartbeat. For example, the heartbeat waveform is acquired based on the detection signal detected by the piezoelectric sensor unit. Even in this case, if an arrhythmia occurs as a heart disease, the interval between the waves indicating the heartbeat of the heartbeat waveform is not constant. Therefore, a heart disease can be detected even in a configuration in which a heartbeat waveform is acquired.

  (4) In the above embodiment, the body position of the bather is specified based on the detection results of the bathtub sensors 47a and 47b. However, the body position of the bather is specified based on the image acquired by the image acquisition means. It is good also as a structure to be made. For example, an infrared thermography is provided in the bathroom 11 as image acquisition means. In this case, the position of the back and feet of the bather can be specified based on the image acquired by the infrared thermography. That is, the posture can be specified. Moreover, since the body surface temperature of a bather can be acquired based on the image, even when a bather gets hot, it can be easily detected. The bathroom 11 may be provided with both bathtub sensors 47a and 47b and image acquisition means. In this case, it is possible to accurately specify the position of the bather.

Schematic for demonstrating the structure of a bathroom. The figure for demonstrating an electrocardiogram waveform. The flowchart which shows the bathroom equipment control process performed by the bathroom server. The flowchart which shows hot flash recovery processing.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Bathroom, 21 ... Bathroom server, 41 ... Bathtub, 43 ... Water discharge part, 44 ... Side part, 47a ... First bathtub sensor, 47b ... Second bathtub sensor, 49 ... Drainage device, 51 ... Bathroom air conditioner, 52 ... Display monitor for bathroom, 54 ... Oxygen supply device, 55 ... Hot water temperature adjustment device.

Claims (8)

A bathtub,
A biological information detector that detects biological information by contacting at least part of the body of the bather in the bathtub with the inner surface of the bathtub;
In a bathroom facility comprising health state determination means for performing a health state determination on the health state of the bather based on the biological information detected by the biological information detection unit,
The biological information detection unit detects the biological information with a specific part of the body of the bather as a detection target,
The biological information based on the biometric information of the specific portion detected by the detecting unit, have a determining Positions decision means for body position bather contained in said tub,
The bathtub is rectangular or substantially rectangular in plan view, and the longitudinal direction is the direction of bathing,
The biological information detection units are respectively disposed on inner surfaces facing in the longitudinal direction of the bathtub, and detect the biological information with the back and feet of the bather as a specific part in a bathing state,
The bathroom posture characterized in that the body position determination means determines the body position of the bather based on the biological information on the back side and the biological information on the foot side detected by the biological information detection unit . Heart rate information acquisition means for acquiring heart rate information related to heart rate from the back side biometric information and the foot side biometric information,
The bathroom equipment according to claim 1 , wherein the body position determination means determines the body position of the bather based on back-side heartbeat information and foot-side heartbeat information acquired by the heartbeat information acquisition means. The heartbeat information acquisition means acquires an electrocardiogram waveform as the heartbeat information from the biological information on the back side and the biological information on the foot side,
3. The body posture determination unit according to claim 2 , wherein the body posture determination unit determines the body position of the bather based on the amplitudes of the back-side electrocardiogram waveform and the foot-side electrocardiogram waveform acquired by the heart rate information acquisition unit. Bathroom facilities. The bathroom equipment according to claim 2 or 3 , wherein the health condition determination means performs the health condition determination based on at least one of the back-side heartbeat information and the foot-side heartbeat information. A body surface temperature acquisition means for acquiring a body surface temperature on the back side in the body based on the biological information on the back side;
The bathroom equipment according to any one of claims 1 to 4 , wherein the health condition determination unit performs the health condition determination based on a back-side body surface temperature acquired by the body surface temperature acquisition unit. The body surface temperature acquisition means acquires the body surface temperature of the foot side in the body based on the biometric information of the foot side,
The bathroom according to claim 5 , wherein the health condition determination unit performs the health condition determination based on a difference between the body surface temperature on the foot side acquired by the body surface temperature acquisition unit and the body surface temperature on the back side. Facility. A water discharge device that is disposed on each of the inner surfaces facing each other in the longitudinal direction of the bathtub, and discharges hot water toward the inner surface on the opposite side;
Based on the determination result of the body posture determination means, a water discharge control means for controlling the water discharge apparatus on the foot side of the bather among the water discharge apparatuses and controlling the operation of the water discharge apparatus as the control target. The bathroom equipment according to claim 5 or 6 . Bathroom equipment that operates to adjust the environment in the bathroom, and bathroom control means that controls the operation of the bathroom equipment,
The health condition determining means determines that the health condition of the bather corresponds to any of a plurality of stages,
The bath control means as a control target the bath apparatus, according to any one of claims 1 to 7 wherein the health condition of the bather in accordance with the corresponding step executes a predetermined specified processing stages Bathroom facilities.

Images