JP2002140776A - Detector of human body state and system for confirming human body state - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detector of the state of a human body and a system for confirming the state of the human body capable of confirming the state or safety of the human body not only in a bathtub but also at places other than the bathtub. SOLUTION: A piezoelectric sensor 5 in the state of a flexible cable is connected to a pendant-formed main body 6 so as to be mounted on the neck of the human body. The main body 6 is provided with a body movement detection means 16 for detecting the movement of the human body based on the output signal of the sensor 5 and a sinking detection means 7 for detecting that the main body 6 sinks in the water. Thus, since not only sinking but also the movement of the human body are detected, the state and safety of the human body can be confirmed not only in the bathtub but also at the places other than the bathtub. Thus, the detector of the state of the human body and the system for confirming the state of the human body which assures a sense of security can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body condition detecting device and a human body condition confirming system for confirming the condition and safety of a human body.

[0002]

2. Description of the Related Art Conventionally, as a human body condition detecting device and a human body condition confirmation system of this kind, for example,
There has been one disclosed in Japanese Patent No. 155881. 8 and 9 show a conventional human body state detection device and a block diagram, respectively, described in the above publication.

In FIGS. 8 and 9, reference numeral 1 denotes a necklace-shaped string, 2 denotes a pendant-type casing suspended from the string 1,
Is an electrode as a sensor section, 4 is a submergence detecting means,
It is arranged in. The submergence detecting means 4 has a submergence determination unit 4a, a warning unit 4b, a buzzer 4c, and a drowning determination unit 4d.

[0004] With the above structure, when the string 1 is attached to the neck of a human body to take a bath, when the electrode 3 touches the water surface in the bathtub and the conductivity between the electrodes 3 changes, the submergence judging section 4a judges that the water has submerged. Then, the warning mode is entered, and the buzzer 4c is sounded by the warning section 4b. "Warning mode" lasts for 10 seconds,
The "warning mode" is released when the housing 2 is pulled up from the water surface. When the "warning mode" has elapsed for 10 seconds, the drowning determination unit 4d determines that the human body has drowned, and the warning signal W is transmitted.

[0005]

However, in the above-described conventional configuration, only the drowning of the human body in the bathtub is determined. For example, it is not possible to detect a fall in the bathroom in a bathroom or a place other than the bathroom. There were challenges.

The present invention solves the above-mentioned conventional problems, and provides a human body state detection device and a human body state confirmation system which can confirm the state and safety of a human body not only in a bathtub but also in a place other than the bathtub. With the goal.

[0007]

In order to solve the above-mentioned conventional problems, a human body state detecting device and a human body state confirming system according to the present invention connect a flexible cable-like piezoelectric sensor to a main body. The main body includes a body movement detecting unit that detects the body movement of the human body based on an output signal of the piezoelectric sensor, and a submergence detecting unit that detects that the main body is submerged. When the body movement detecting means does not detect body movement within a preset time based on the output signals of the body movement detecting means and the submergence detecting means, or when the submergence detecting means detects submersion A signal is transmitted wirelessly to a separately provided receiving device.

Thus, not only the submersion detection but also the body movement are detected, so that the state and safety of the human body can be confirmed not only in the bathtub but also in a place other than the bathtub, and a human body state detecting device with high security can be provided. .

[0009]

According to the first aspect of the present invention, a flexible cable-shaped piezoelectric sensor is connected to a main body so that the piezoelectric sensor can be attached to a part of a human body. Body detection means for detecting body movement of the human body based on the output signal, and submersion detection means for detecting that the main body is submerged, and based on output signals of the body movement detection means and the submergence detection means, When the body movement detecting means does not detect body movement within a set time, or when the water immersion detecting means detects water immersion, a signal is wirelessly transmitted to a separately provided receiving device, and the water immersion detection is performed. Not only the body movement is detected, but also the state and safety of the human body can be confirmed not only in the bathtub but also in a place other than the bathtub, and a highly reliable human body state detection device can be provided.

According to a second aspect of the present invention, in the first aspect of the present invention, an abnormality input means capable of manually inputting occurrence of an abnormality is provided in the main body, and the control means controls the body within a set time. When the motion detecting means does not detect body motion (mode 1) and when the submersion detecting means detects submersion (mode 2).
When the input is made to the abnormality input means (mode 3), the transmission means is controlled to transmit a specific signal corresponding to each of them.

Since a signal specific to each detection mode is transmitted, more detailed information on the state of the human body can be obtained.

According to a third aspect of the present invention, in the first or second aspect of the present invention, since the main body is composed of two detachable sub-main bodies, the main body can be easily attached to a human body. Easy to use.

According to a fourth aspect of the present invention, there is provided a receiving device for receiving a signal from the human body condition detecting device according to the first or third aspect, and when the receiving device receives the signal, at least one of light, sound and vibration is applied to the human body. Stimulus generating means for providing one stimulus, human body response detecting means for detecting a response of the human body to the stimulus, and abnormality determining means for determining whether an abnormality has occurred in the human body based on an output signal from the human body response detecting means And a communication means for communicating with a notification device separately provided with the occurrence of the abnormality when the abnormality occurrence means determines that an abnormality has occurred.

[0014] When a signal from the human body condition detecting device is received, at least one of light, sound, and vibration is applied to the human body, and a response to the stimulus to the human body is detected to determine whether or not a final abnormality has occurred. Therefore, it is possible to provide a human body state confirmation system that does not have an erroneous determination in the abnormality determination.

According to a fifth aspect of the present invention, there is provided a receiving device for receiving a signal from the human body condition detecting device according to the second or third aspect, and when the receiving device receives a mode 1 signal and a mode 2 signal, the mode is changed to each mode. Stimulus generating means for providing a corresponding stimulus having different contents to the human body, human body response detecting means for detecting a response of the human body to the stimulus, and whether an abnormality has occurred in the human body based on an output signal from the human body reaction detecting means A communication unit that communicates with a notifying device separately provided with the occurrence of an abnormality when it is determined that an abnormality has occurred in the abnormality generating unit, or when the receiving device receives a mode 3 signal. Means.

[0016] In addition to detecting the reaction to the stimulus to the human body to determine whether or not a final abnormality has occurred, the abnormality determination is performed for each mode, so that the accuracy of the abnormality determination is improved.

According to a sixth aspect of the present invention, in the hot water supply apparatus according to the fourth or fifth aspect, the receiving device, the stimulus generating means, the human body reaction detecting means, the abnormality determining means, and the communication means are installed in the bathroom. Since it is provided in the remote control device, it is possible to save space and to save labor for installation.

According to a seventh aspect of the present invention, in accordance with the fourth or fifth aspect, a receiving device, a stimulus generating unit, a human body reaction detecting unit, an abnormality determining unit, and a communication unit are installed in a house. Since it is arranged in the in-home unit, it is possible to check the condition and safety of the human body not only in the bathtub but also in a place other than the bathtub, and it is possible to provide a more reliable human body state confirmation system.

According to an eighth aspect of the present invention, in the first aspect of the present invention, the notification device is any one of a mobile phone, a PHS, a pager, a portable computer, and a transceiver. Therefore, the state and safety of the human body can be checked anytime and anywhere, whether inside or outside the house, and a human body state checking system with a high sense of security can be provided.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is an external view of a biological information detecting apparatus according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 5 denotes a flexible cable-shaped piezoelectric sensor which suspends a pendant type main body 6 from a neck of a human body. The main body 6 includes two sub-main bodies 6a and 6b, and has a built-in switch 6c that enables a detection operation by connecting the sub-main bodies 6a and 6b. 6d
Is a notifying unit composed of an LED and a buzzer. Reference numerals 7a and 7b denote electrodes of the submergence detecting means 7, and reference numeral 8 denotes abnormality input means for inputting that an abnormality has occurred by manual operation, both of which are disposed on the main body 6. The submergence detecting means 7 as described above is disclosed in, for example, Japanese Patent Publication No. 62-25297 and Japanese Utility Model Laid-Open No. 5-34499.
This is a known method for detecting submersion by detecting a short circuit between electrodes due to water landing and a current between the electrodes.

FIG. 2 is a sectional view of the piezoelectric sensor 5 taken along line AA of FIG. In FIG. 2, 9 is a center electrode, 10
Is a piezoelectric layer, 11 is an outer electrode, and 12 is a coating layer.

In general, the piezoelectric layer 10 may be made of a resin-based polymer piezoelectric material such as polyvinylidene fluoride or the like, but a composite material obtained by mixing a piezoelectric ceramic powder in a polymer base material such as chlorinated polyethylene. The use of a piezoelectric body improves the high-temperature durability.

The center electrode 9 may be an ordinary metal single wire, but here, an electrode in which a metal coil is wound around an insulating polymer fiber is used. As the insulating polymer fiber and the metal coil, polyester fiber and a copper alloy containing 5 wt% of silver, which are commercially used in an electric blanket, are preferable.

The outer electrode 11 is a belt-like electrode in which a metal film is adhered on a polymer layer, and is wound around the piezoelectric layer 10. An electrode having a polymer layer made of polyethylene terephthalate (PET) and having an aluminum film adhered thereon has high thermal stability at 120 ° C. and is mass-produced commercially. Preferred as 11. Note that the piezoelectric sensor 5
It is preferable that the outer electrode 11 be wound around the piezoelectric layer 10 so as to partially overlap with each other in order to shield the outer electrode 11 from electric noise in an external environment.

As the coating layer 12, a suitable elastic polymer material such as urethane, polyethylene, and vinyl chloride is used.

FIG. 3 is a block diagram according to the first embodiment. In FIG. 3, reference numeral 13 denotes a power supply comprising a battery which can be incorporated in the main body 6, and the power supply is turned on / off by attaching / detaching the sub-main bodies 6a and 6b and turning on / off the switch 6c. The power supply 13 may be configured to be rechargeable using a rechargeable battery. Reference numeral 7 denotes a submergence detecting means.
It has electrodes 7a and 7b disposed on the surface and a submergence determination unit 7c. Reference numeral 14 denotes a first resistor for detecting a disconnection of the piezoelectric sensor 5, which is grounded via the outer electrode 10 of the piezoelectric sensor 5. The output signal from the piezoelectric sensor 5 is derived from the center electrodes 9 at both ends. Center electrode 9
A second resistor 15 as an input resistor is connected between the second electrode 15 and the outer electrode 10 grounded to the ground.

Reference numeral 16 denotes a body movement detecting means. An amplification unit 17 for amplifying the output signal of the piezoelectric sensor 5 and a body movement signal based on the heartbeat of the human body and a body movement signal based on the respiration of the living body from the output signal of the amplification unit 17. First filtering unit 18 for each extraction
And a second filtering unit 19, a third filtering unit 20 for extracting a body motion signal based on an operation of a human body from an output signal of the piezoelectric sensor 5, a first filtering unit 18, and a second filtering unit 19. And a signal processing unit 21 for AD-converting the output signal of the third filtering unit 20 and integrating for a predetermined time. Each of the first filtering unit 18, the second filtering unit 19, and the third filtering unit 20 is formed of a band-pass filter, and has a pass band frequency of 4 Hz to 8 Hz, 0.1 Hz to 1 Hz, and 1 Hz to 1 respectively.
It is set to 0 Hz.

The power source 13, the first resistor 14, the second resistor 15, the body movement detecting means 16, the submergence detecting means 7, the control means 22, and the transmitting means 23 are arranged in the main body 6.

Reference numeral 22 denotes control means, and 23 denotes transmission means.
The transmitting unit 23 wirelessly transmits a signal to the receiving device 24. 25 is a stimulus generating means, 26 is a human body reaction detecting means, 2
Reference numeral 7 denotes an abnormality determining unit, and 28 denotes a communication unit, all of which are built in a hot water supply remote control device 29a installed in the bathroom. Reference numeral 30 denotes a notification device provided in the kitchen. The hot water supply remote control device 29a is one of the plurality of home units 29.
In the house, home units 29b, 29c,... Are installed in other places such as toilets, living rooms, and bedrooms.

In FIG. 3, reference numeral 31 denotes a human body state detecting device;
32 is a human body state confirmation system.

The operation and operation of the first embodiment configured as described above will be described below.

First, a ring-shaped piezoelectric sensor 5 having flexibility
Is turned around a part of the living body, for example, around the neck N,
a and 6b are connected to each other and the human body state detecting device 31 is connected to the human body M.
Attach to FIG. 4 is an external view of the case where the human body state detection device 31 is worn around the neck N of the human body M. Sub body 6
By connecting a and 6b to each other, the switch 6c is turned on and the power supply of the human body condition detecting device 31 is turned on.

As shown in FIG. 4, the human body condition detecting device 31
Is attached, at least a part of the piezoelectric sensor 5 always comes into direct contact with the human body M. Further, when the human body M wears clothes, at least a part of the piezoelectric sensor 5 always indirectly contacts the human body M via clothes or the like. The piezoelectric sensor 5 performs at least one of a body motion based on the heartbeat of the human body M, a body motion based on the respiration of the human body M, and a body motion based on the motion of the human body M.
And an output signal corresponding to the acceleration of the deformation is generated by the piezoelectric effect.

The body movement based on the heartbeat is an impulse transmitted to the body every time the heart beats, and the body movement based on the respiration is the movement of the body surface of the chest and abdomen which appears during breathing. The frequency characteristics of these body movements are as follows: if the body is a human body, the body movement based on the heartbeat is usually 4 to 8 Hz, and the body movement based on respiration is 0.1 Hz to 1 Hz.
It is.

On the basis of such frequency characteristics, the body movement detecting means 16 first amplifies the output signal of the piezoelectric sensor 5 by the amplifying unit 17 and converts the output signal of the amplifying unit 17 into the first filtering unit 1.
A body motion signal based on the heartbeat and a body motion signal based on the respiration are extracted by the eighth and second filtering units 19, respectively. Further, a body motion signal based on the motion of the human body is extracted from the output signal of the piezoelectric sensor 5 by the third filtering unit 20. Each of the extracted signals is AD-converted by the signal processing unit 21 and integrated for a predetermined time. Piezoelectric sensor 5 in amplifier 17
The reason for amplifying the output signal is that the body motion signal based on the heartbeat or respiration is a small signal as compared with the body motion signal based on the motion of the human body.

FIG. 5 is a characteristic diagram showing output signals of the piezoelectric sensor 5, the amplifying unit 17, the first filtering unit 18, the second filtering unit 19, and the third filtering unit 20 at rest and during operation. FIG.
(A) to (e) respectively show the piezoelectric sensor 5 and the amplifying unit 1 in order.
7, output signals of the first filtering unit 18, the second filtering unit 19, and the third filtering unit 20.

As shown in FIG. 5A, the output signal of the piezoelectric sensor 5 fluctuates slightly at rest and a large output is observed during operation. Among them, the body movement signal based on the heartbeat and the respiration is superimposed on the minute fluctuation at rest as shown in the output signal of the amplifier 17 in FIG. 5B. Then, as shown in FIG. 5C and FIG.
The filtering unit 18 and the second filtering unit 19 can separate and extract a body motion signal based on a heartbeat and a body motion signal based on respiration. In addition, as shown in FIG. 5E, the third filtering unit 20 extracts a body motion signal based on the motion of the human body.
When an action occurs on the human body, the output signals of the first filtering unit 18 and the second filtering unit 19 each exceed the output range and become saturated.

Next, based on the output signal from the signal processing unit 21, it is determined whether or not there is a body motion signal based on the motion of the human body within the set time T1 preset by the control means 22. This procedure will be described with reference to FIG. Figure 6 is a characteristic diagram of an output signal from the signal processing unit 21, where the output signal from the third filter section 20 and AD conversion, shows a characteristic diagram of the integrated values S ₁ by a predetermined time integral.

[0040] The control means 22, S ₁ is large is whether is compared than the set value v ₁ to a preset as shown in FIG. If S ₁ becomes larger than v ₁ within T1, there is no abnormality because the body motion based on the motion occurs intermittently in the human body.
If S ₁ does not become larger than v ₁ within T _1, there is no body movement for a while, so the control unit 22 sets this state as an abnormal state of mode 1 and indicates mode 1 from the transmitting unit 23 at time t _1. Send a signal.

In parallel with the processing based on such body movement, the water immersion detecting means 7 applies a predetermined voltage between the electrodes 7a and 7b, and sets a state where the current flowing therethrough becomes a predetermined value or more. If the predetermined time T2 or more is reached, the submergence determination unit 7c determines that the main body 6 is submerged. When the submersion detecting means 7 detects submersion in this way, the control means 22
Sets this state as an abnormal state of mode 2 and transmits a signal indicating mode 2 from the transmitting means 23.

FIG. 7 is a flowchart showing a processing procedure in the control means 22. As shown in FIG.
When the switch 6c is turned on by connecting the sub-main bodies 6a and 6b to each other in step 1, the processing starts. Next, step S
At T2, the presence or absence of an abnormal input from the abnormal input means 8 is detected. If there is an abnormal input, the control means 22 sets this state to the abnormal state of mode 3 and sets the transmission signal to a signal representing mode 3 at step ST6. The process proceeds to step ST10.
If there is no abnormal input, a disconnection abnormality of the piezoelectric sensor 5 is determined in step ST3.

The procedure for determining the disconnection abnormality of the piezoelectric sensor 5 is as follows. If there is no disconnection in the outer electrode 10 of the piezoelectric sensor 5, the potential at the point Vr in FIG. 3 becomes the ground potential. If the outer electrode 10 is disconnected, the potential at the point Vr is
Potential. Based on such a relationship, the abnormality determination unit 2
At 3, if the potential at the point Vr is the ground potential, the piezoelectric sensor 5 is determined to be normal, and the process proceeds to step ST4. Also, point V
If the potential of r is higher than the potential of the ground, the piezoelectric sensor 5
Is abnormal, the control unit 22 sets this state to an abnormal state of mode 4, sets the transmission signal to a signal representing mode 4 in step ST7, and proceeds to step ST10.

In step ST4, it is determined whether or not the body movement detecting means 16 detects body movement within the set time T1.
If there is a body motion detection within 1, the process proceeds to step ST5. If there is no body movement detection within T1, the process proceeds to step ST8, where the control unit 22 sets the transmission signal to mode 1 and proceeds to step ST1.
Go to 0.

In step ST5, the presence or absence of submergence detection by the submergence detecting means 7 is determined. If there is no submergence detection, the operation from step ST1 is continued. If there is submergence detection, the process proceeds to step ST9, where the control unit 22 sets the transmission signal to mode 2 and proceeds to step ST10.

In step ST10, the notification unit 6d sets the LE.
Blinks D and activates buzzer. In step ST11, the signal set in each mode is transmitted to the receiving device 24 by the transmitting means 23.

The signal setting method for each mode is as follows.
For example, the pattern of the pulse train may be changed and set for each mode.

Next, when the signal from the transmitting means 23 is received by the receiving device 24, processing is performed for each signal mode.
That is, the stimulus generation means 25 is set so that the receiving device 24 is in the mode 1
And the mode 2 signal, the stimulus of different contents corresponding to each mode is given to the human body. At this time, when the human body is submerged, it is necessary to generate a larger stimulus than when there is no body movement and to check the reaction of the human body. Therefore, the intensity of the stimulus in mode 2 is set to be higher than in mode 1. As the stimulus, for example, a sound is used, and a sound such as “Are you OK?” Is generated. Mode 1 instead of sound stimulation
Mode 2 generates different amounts of light or Mode 1
And mode 2 may be configured to generate vibrations having different intensities.

The human body response detecting means 26 detects the response of the human body to such a stimulus. Specifically, the body movement is detected by the body movement detecting means 16 as a reaction of the human body, the output signal of the body movement detecting means 16 is transmitted through the transmitting means 23, and the human body reaction detecting means 26 detects the movement. I just need. In the case of this configuration, it is determined that there is a human body reaction if there is a body motion within a predetermined time after the stimulus is generated, and that there is no human body reaction if there is no body motion. Then, if there is a body movement, LE in the notification unit 6d
The blinking of D and the operation of the buzzer are stopped.

As another configuration of the human body reaction detecting means 26,
A speaker may be provided in the hot water supply remote control device 29, and a human body reaction may be detected by a configuration in which a voice response of the human body is detected by the speaker within a predetermined time after the stimulus is generated. Also,
A configuration that detects whether or not the human body has pressed various operation buttons on the hot water supply remote control device 29 within a predetermined time period after the generation of the stimulus may be configured to detect a human body reaction.

The abnormality judging means 27 judges whether an abnormality has occurred in the human body based on the output signal from the human body reaction detecting means 26. Specifically, if there is a human reaction, it is normal,
If there is no human reaction, it is determined that there is an abnormality. The receiving device 24
When the device receives the mode 3 signal, it immediately determines that there is an abnormality.

When an abnormality is determined by the abnormality determining means 27,
The abnormality signal is wirelessly communicated to the notification device 30 by the communication means 28, and an alarm indicating that an abnormality has occurred in the bathroom is generated.

With the above operation, for example, when the human body drowns in the bathtub due to fainting or the like, the submergence detecting means 7 can detect submergence of the main body 6 and notify the abnormality. Further, when the human body cannot move due to fainting in a bathtub (not drowning) or in a washing place, the body movement detecting means 16 can detect the absence of body movement for a predetermined time and notify the abnormality.

When the receiving device 24 receives the mode 4 signal, an alarm is issued from the notification device 30 to the effect that the piezoelectric sensor 5 is disconnected.

Further, even when a human body is present in a place other than the bathroom, a plurality of home units 29b, 29c,.
.. Are provided, so that the same operation as described above can be performed to detect a human body state and confirm the human body state.

When the human body condition detecting means 31 is detached from the neck and left as it is, the body motion detecting means 16 determines that there is no body movement, and an alarm is generated, which prompts the user to attach the human body state detecting means 31. This is a safe operation.

When the human body state detecting means 31 is not used, the sub-main bodies 6a and 6b are separated. As a result, the power supply is turned off by the switch 6c, and the detection operation stops. When the power supply is turned off, the transmitting means 23 does not operate, so that no alarm is generated.

As described above, in the present embodiment, not only the detection of submergence but also the body movement is detected, so that the condition and safety of the human body can be confirmed not only in the bathtub but also in a place other than the bathtub, and the human body with high security can be confirmed. A state detection device can be provided.

Since a signal specific to each detection mode is transmitted, more detailed information on the human body condition can be obtained.

Further, since the main body is composed of two detachable sub-main bodies, when the main body is mounted on a human body, the main body can be easily mounted and the usability is good.

Further, upon receiving a signal from the human body condition detecting device, at least one of light, sound and vibration is applied to the human body, and a response to the stimulus to the human body is detected to determine whether or not a final abnormality has occurred. Therefore, it is possible to provide a human body state confirmation system that does not have an erroneous determination in the abnormality determination.

In addition, since the response to the stimulus to the human body is detected to determine whether or not a final abnormality has occurred, the abnormality is determined for each mode, so that the accuracy of the abnormality determination is improved.

Further, since the receiving device, the stimulus generating means, the human body reaction detecting means, the abnormality determining means, and the communication means are provided in the hot water supply remote control device installed in the bathroom, the space can be saved, and at the time of installation. Can be saved.

Further, since the receiving device, the stimulus generating means, the human body reaction detecting means, the abnormality judging means, and the communication means are arranged in a plurality of home units installed in the house, not only the bathtub but also a place other than the bathtub. However, the state and safety of the human body can be confirmed, and a more reliable human body state confirmation system can be provided.

In the above-described embodiment, the main body 6 is of a pendant type so as to be mounted around the neck of the human body M. However, for example, the piezoelectric sensor 5 may be configured to be mounted on another part of the living body. For example, the piezoelectric sensor 5 may be a wristwatch-type main body that can be worn around the wrist, the piezoelectric sensor 5 may be a hairband-type main body that can be worn around the head, or the piezoelectric sensor 5 may be a waist. May be a belt-type main body so that the main body can be mounted around.

Further, in the above embodiment, a configuration may be adopted in which the transmitting means 23 transmits a body motion signal based on the heartbeat, respiration, and motion of the human body detected by the body motion detecting means 16 to the receiving device 24, and the human body is remotely sensed. You can check the heart rate and respiratory signal,
The sense of security is further enhanced.

Further, v ₁ can be determined in advance by an experiment using a subject or the like. Further, T1 and T2 are desirably set to several seconds to several tens of seconds in consideration of the balance between misinformation and emergency notification, but may be set arbitrarily by a user or a third party.

Further, when an abnormality occurs in the human body, even if the piezoelectric sensor 5 is torn off from the main body 6 as a quick operation, the occurrence of the abnormality is notified by detecting the disconnection, so that the usability is good.

Further, in the above embodiment, the body motion signal based on the motion of the human body is used. However, a configuration may be adopted in which the abnormality is determined using the body motion signal based on the heartbeat or breathing.

Further, the outer electrode 10 of the piezoelectric sensor 5 may be used as a wireless antenna of the transmitting means 23.

As a measure against running out of the battery of the power supply 13,
The control unit 22 detects the voltage of the power supply 13 and
When the output capacity of the battery 3 falls below a predetermined value, the notification unit 6
The configuration may be such that the buzzer is activated at d to notify the battery exhaustion, or a signal corresponding to the battery exhaustion is transmitted to the receiving device 24 by the transmission means 23 and the notification device 30 notifies the battery exhaustion.

In the first embodiment, the water immersion detecting means 7 is configured to apply a predetermined voltage between the electrodes 7a and 7b and detect the current flowing therethrough to determine whether the water is immersed.
Instead of 7b, another configuration for detecting submersion such as providing a transmitting unit and a receiving unit for light or ultrasonic waves on the surface of the main body 6 and detecting submersion based on an output signal of the receiving unit may be used.

Further, the ultrasonic signal may always be transmitted from the transmitting means 23 to the receiving device 24 during use, without using the submersion detecting means 7. When the main body 6 is submerged in this configuration, an ultrasonic signal is emitted in the water. However, the ultrasonic signal does not propagate into the air because the propagation impedance at the water surface is large, so that the ultrasonic signal does not reach the receiving device 24. Therefore, if an ultrasonic signal cannot be received by the receiving device 24, the configuration may be such that the abnormality determination is performed in the procedure as in the first embodiment.
If the body movement is not detected by the body movement detection unit 16, the transmission of the ultrasonic signal from the transmission unit 23 may be stopped. According to this configuration, it is not necessary to use the submergence detecting means 7, so that
The number of parts can be reduced and rationalization can be achieved.

In the above embodiment, the stimulus generation means 25 is built in the hot water supply remote control device 29a. However, the stimulus generation means 25 may be built in the main body 6;
Since the stimulus is transmitted to the human body M more effectively, the usability is improved. Further, the transmission means 23 and the receiving device 24 are not required, and the signal of the control means 22 is directly input to the stimulus generation means 25, and the stimulus generation means 25, the human body reaction detection means 26, the abnormality determination means 27 and the communication means 28 It may be configured to be built in the main body 6.

(Embodiment 2) A human body state confirmation system according to Embodiment 2 of the present invention will be described below. This embodiment differs from the configuration of the first embodiment in that the notification device 30 is any one of a mobile phone, a PHS, a pager, a portable computer, and a transceiver. The communication unit 28 transmits an abnormal signal to a mobile phone, a PHS, a pager (registered trademark), or a portable computer via a public network, or transmits an abnormal signal to a transceiver wirelessly.

According to the above configuration, an abnormal signal is transmitted to any one of a mobile phone, a PHS, a pager, a portable computer, and a transceiver by the communication means 28, and the abnormality is notified. The state and safety of the human body can be confirmed, and a human body state confirmation system with a high sense of security can be provided.

The human body condition detection device and the human body condition confirmation system according to the present invention are not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention. It is.

[0078]

As described above, according to the present invention, since not only the detection of submersion but also the body movement is detected, the condition and safety of the human body can be confirmed not only in the bathtub but also in a place other than the bathtub. A human body state detection device and a human body state confirmation system with a sense of security can be provided.

[Brief description of the drawings]

FIG. 1 is an external view of a human body state detection device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a block diagram according to the first embodiment.

FIG. 4 is an external view when the human body state detection device is worn on a human body.

5A is a characteristic diagram showing an output signal of a piezoelectric sensor. FIG. 5B is a characteristic diagram showing an output signal of an amplifier. FIG. 5C is a characteristic diagram showing an output signal of a first filtering unit. (E) Characteristic diagram showing third filtering unit output signal

FIG. 6 is a characteristic diagram of an output signal from a signal processing unit according to the first embodiment.

FIG. 7 is a flowchart illustrating a processing procedure of a control unit 22 according to the first embodiment.

FIG. 8 is an external view of a conventional human body state detection device.

FIG. 9 is a block diagram of the apparatus.

[Explanation of symbols]

 Reference Signs List 5 piezoelectric sensor 6 main body 6a, 6b sub main body 7 submergence detecting means 8 abnormality input means 16 body movement detecting means 22 control means 23 transmitting means 24 receiving device 25 stimulus generating means 26 human body reaction detecting means 27 abnormality determining means 28 communication means 29a hot water supply Remote control device (home unit) 29b, 29c Home unit 30 Notification device 31 Human body state detection device 32 Human body state confirmation system

Continuing on the front page (72) Inventor Yumiko Hara 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Tadashi Tadashi 1006 Odaka Kadoma Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 2D032 GA00 5C086 AA22 BA04 CB08 CB20 CB21 DA08 DA20 DA40 EA13 EA45 FA01 FA02 FA11 FA12 FA20

Claims (8)

[Claims] 1. A cable-shaped piezoelectric sensor having flexibility is connected to a main body so that the main body can be attached to a part of a human body, and the main body detects a body movement of the human body based on an output signal of the piezoelectric sensor. Body movement detecting means, a submergence detecting means for detecting that the main body is submerged, a transmitting means for wirelessly transmitting a signal to a separately provided receiving device, and based on output signals of the body movement detecting means and the submerged detecting means. When the body movement detecting unit does not detect body movement within a preset time, or when the submergence detecting unit detects submergence, the control unit controls the transmitting unit to transmit a signal from the transmitting unit. And a human body condition detecting device. 2. An abnormality input means capable of manually inputting occurrence of an abnormality is provided in the main body, and the control means controls the case where the body movement detection means does not detect a body movement within a set time (mode 1).
The transmitting means is controlled so as to transmit specific signals corresponding to the case where the submersion detecting means detects submersion (mode 2) and the case where there is an input to the abnormality input means (mode 3). Human body condition detection device. 3. The human body condition detecting device according to claim 1, wherein the main body comprises two detachable sub-main bodies, and the detection operation is enabled by connecting the sub-main bodies. 4. A receiving device for receiving a signal from the human body condition detecting device according to claim 1 or 3, and a stimulus generating means for applying at least one stimulus of light, sound, and vibration to the human body when the receiving device receives the signal. And a human body reaction detecting means for detecting a response of the human body to the stimulus, an abnormality determining means for determining whether an abnormality has occurred in the human body based on an output signal from the human body reaction detecting means, and the abnormality generating means A human body state checking system comprising: a communication unit that, when it is determined that an abnormality has occurred, communicates to a reporting device separately provided with the occurrence of the abnormality. 5. A receiving device for receiving a signal from the human body condition detecting device according to claim 2 or 3, and a stimulus having different contents corresponding to each mode when the receiving device receives a mode 1 and a mode 2 signal. Stimulus generating means to be applied to the human body, human body reaction detecting means for detecting a response of the human body to the stimulus, and abnormality determining means for determining whether an abnormality has occurred in the human body based on an output signal from the human body reaction detecting means. A human body condition including a communication unit that communicates to a reporting device separately provided with the occurrence of an abnormality when it is determined that an abnormality has occurred in the abnormality generating unit, or when the receiving device receives a signal of mode 3; Confirmation system. 6. The human body state confirming system according to claim 4, wherein the receiving device, the stimulus generating unit, the human body reaction detecting unit, the abnormality determining unit, and the communication unit are provided in a hot water supply remote control device installed in the bathroom. . 7. The human body condition according to claim 4, wherein the receiving device, the stimulus generating unit, the human body reaction detecting unit, the abnormality determining unit, and the communication unit are respectively provided in a plurality of home units installed in the house. Confirmation system. 8. The human body condition confirmation system according to claim 4, wherein the notification device is any one of a mobile phone, a PHS, a pager, a portable computer, and a transceiver.