WO2015137433A1

WO2015137433A1 - Air pad for detecting biometric information, device for detecting biometric information, and system for delivering biometric information

Info

Publication number: WO2015137433A1
Application number: PCT/JP2015/057262
Authority: WO
Inventors: 充高島; 直也遠山
Original assignee: 株式会社リキッド・デザイン・システムズ
Priority date: 2014-03-12
Filing date: 2015-03-12
Publication date: 2015-09-17
Also published as: TW201545717A; JPWO2015137433A1; TWI667014B; JP5887676B2

Abstract

　This air pad for detecting biometric information (50) is provided with: a bladder (51) positioned beneath a subject undergoing monitoring of biometric information so as to intersect said subject in the height direction; first and second air tubes (52a, 52b) disposed at one end of the bladder in the longitudinal direction, each end of said first and second air tubes being positioned, respectively, inside and outside the bladder; and an internal air tube (53) that is provided inside the bladder, is joined to the second air tube, and extends from the second air tube to the other end of the bladder in the longitudinal direction.

Description

Air pad for detecting biological information, biological information detecting device, and biological information distribution system

The present invention relates to an air pad for detecting biological information, a biological information detecting device, and a biological information distribution system.

Conventionally, a biological information collecting apparatus has been proposed in which a minute pinhole is provided in an air bag having an airtight and variable internal volume, and a spring material is disposed in the air bag to maintain a gap (Patent Document 1). reference).

The living body information collecting apparatus disclosed in Patent Document 1 detects a change in air pressure when a human body is on the air bag in a state where air remains, using an omnidirectional microphone or a pressure sensor. Thereby, biological information, such as a human body's respiration, a heart rate (heart rate cycle), and body movements including coughs and stagnation, is measured.

Japanese Patent No. 3242631

The present invention has been proposed to solve the problems of the prior art.

An air pad for biometric information detection according to the present invention includes an air bag disposed below a biometric information detection target person so as to intersect the height direction of the detection target person, and one end side in the longitudinal direction of the air bag. The first and second air pipes, both ends of which are respectively disposed outside and inside the air bag, and provided inside the air bag and joined to the second air pipe, An internal air pipe extending from the second air pipe to the other end side in the longitudinal direction of the air bag.

The biological information detection device according to the present invention includes the air pad for detecting biological information, an air merging unit that merges air from the first and second air tubes, and vibration of the air that is merged at the air merging unit. And biometric information detecting means for detecting biometric information of the person to be detected.

The biological information distribution system according to the present invention receives the biological information transmitted from the biological information detecting device, the communicable information terminal device, and the biological information detecting device, and based on the biological information and the biological information And a server device that transmits at least one of the states of the person to be detected to the information terminal device.

The present invention can detect biological information of a detection target person with high accuracy and without being affected by the position of the detection target person without cost.

It is a figure which shows the structure of a biometric information delivery system. It is a conceptual diagram which shows the service content of a biometric information delivery system. It is a front view which shows the detailed structure of a biometric information detection apparatus. It is an external appearance perspective view of the main-body part of a biometric information detection apparatus. It is a block diagram which shows the functional structure of a main-body part. It is a case where an object person is sleeping near the end (opposite side of an air pipe) of an air pad, and is a figure showing an experimental situation for obtaining a detection result of living body information of this embodiment. It is a case where the subject is sleeping near the end of the air pad (opposite side of the air tube), and is a diagram showing an experimental situation for obtaining a detection result of conventional biological information. It is a figure which shows the signal waveform of the respiration rate (upper stage) and the heart rate (lower stage) which are the biometric information of this embodiment. It is a figure which shows the signal waveform of the respiration rate (upper stage) and the heart rate (lower stage) which are the conventional biometric information. It is a figure which shows the signal waveform of the respiration rate (upper stage) and the heart rate (lower stage) which are biometric information when an air pad sensor is laid under the futon. It is a figure which shows the signal waveform of the respiration rate (upper stage) and the heart rate (lower stage) which are biometric information when the air pad sensor is not laid under the futon (the subject is directly mounted). It is a figure which shows the smart house of the house with a nursing care service in which the biometric information delivery system of this embodiment was used.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing a configuration of the biological information distribution system 1.
The biological information distribution system 1 includes a biological information detection device 10 capable of detecting biological information such as a heart rate and a respiration rate from a detection target person (hereinafter referred to as “target person”) of biological information and capable of data communication, and data An information terminal device 20 capable of communication, and a biological information management server 30 that manages biological information and distributes information related to the human body to the information terminal device 20 are provided.

In FIG. 1, only three biological information detection apparatuses 10 and three information terminal apparatuses 20 and one biological information management server 30 are illustrated. However, in the biometric information distribution system 1, the numbers of the biometric information detection device 10 and the information terminal device 20 are not limited, and are provided according to the number of subjects whose biometric information is to be detected. One biological information management server 30 may be provided, or a plurality of biological information management servers 30 may be provided for load distribution.

FIG. 2 is a conceptual diagram showing service contents of the biometric information distribution system 1.
The biological information detection device (air pad sensor) 10 is disposed under the subject's bed pad or bed mat and detects biological information such as heart rate and respiratory rate while the subject is sleeping. Furthermore, the biological information detection apparatus 10 detects temperature, humidity, room brightness, noise, odor, atmospheric pressure, and the like as environmental information. The biological information detection apparatus 10 automatically records the detected biological information and environmental information in an internal memory, and transmits to the biological information management server 30 shown in FIG. 1 via the Internet in real time or at a predetermined timing. . In addition, the biological information detection device 10 stores personal information (age, sex, residential area (position information), care level, etc.) of the subject in advance, and transmits this personal information to the biological information management server 30. .

The information terminal device 20 may be any terminal that can be connected to the Internet line by wire or wireless. For example, a so-called smartphone, tablet terminal, mobile phone, small personal computer, and the like are applicable. The information terminal device 20 is owned by a person who wants to check the status of the subject, such as a doctor, a nurse, a caregiver, or a relative of the subject.

The information terminal device 20 displays biometric information, warning information (for example, information indicating that the user has left the bed), and other information transmitted from the biometric information management server 30. Thus, even when the user is away from the subject, the user can check the subject's biological information and other information, and can grasp whether or not the subject has left the floor. The information terminal device 20 can also transmit and receive text document, image, and audio information to and from the biological information detection device 10 via the biological information management server 30.

The biological information management server 30 transmits the biological information transmitted from the biological information detecting device 10 to the information terminal device 20 determined in advance. The biological information management server 30 can also determine whether the subject has left the bed based on the biological information transmitted from the biological information detection device 10.

For example, when the biological information transmitted from the biological information detecting device 10 is interrupted for a predetermined time (for example, 20 seconds), the biological information management server 30 determines that the subject has left the floor and displays warning information indicating that the person has left the information terminal. Transmit to device 20. In addition, the biological information management server 30 is abnormal when the heart rate transmitted from the biological information detection device 10 continuously becomes 30 or less for a predetermined time (for example, 2 minutes) or becomes 170 or more. Warning information indicating this may be transmitted to the information terminal device 20.

Furthermore, the biometric information management server 30 aggregates biometric information and personal information from all target persons connected on the network, and statistical data corresponding to the target person's residence area, season, level of care required, and environmental information, respectively. (Big data) can also be created. According to this statistical data, for each target person who satisfies an arbitrary condition (for example, male in his 60s, living area: Hokkaido, level 3 requiring care, etc.) It becomes possible to grasp whether it is stable.

In this case, when the biological information management server 30 receives the biological information and the environment information from the arbitrary biological information detection device 10, the biological information management server 30 compares the received information with the statistical data. Then, when the biological information management server 30 detects an abnormality in the biological information of the subject (such as a large change in heart rate or respiratory rate), the biological information management server 30 changes to the environment when the biological information is stable based on the statistical data. Warning information for prompting is transmitted to the biological information detecting device 10 and the information terminal device 20. Thereby, the user of the biological information detection device 10 or the information terminal device 20 can check the warning information and adjust the environment (room temperature, humidity, etc.) of the subject person to an optimum state.

FIG. 3 is a front view showing a detailed configuration of the biological information detection apparatus 10.
The biological information detection apparatus 10 includes an air pad sensor 50 laid under the bed pad or bed mat of the subject, an air merging unit 60 that merges air from the air pad sensor 50, and air vibrations from the air merging unit 60 ( And a main body 70 that detects biological information based on (sound pressure).

The air pad sensor 50 includes an air pad 51 into which air enters, two short

tubular air pipes

52 a and 52 b having both ends arranged outside and inside the air pad 51, and an internal air pipe 53 provided in the air pad 51. And.

The air pad 51 is an airtight sheet-like air bag (including an airtight cabinet having a variable internal capacity). The air pad 51 is formed in a long shape, and is arranged under a bed mattress or a mattress when detecting biological information, and further intersects the height direction of the subject (substantially in a vertical direction). ) Arranged.

The air pad 51 has a cushion member (for example, a foaming sponge) having an elastic function for providing a gap inside. For this reason, when the air pad 51 is pressed from the outside, the air pad 51 is deformed, and the cushion member is also deformed in accordance with the deformation. On the other hand, when the air pad 51 is no longer pressed, the cushion member is restored to its original shape by its elastic function, and a gap is provided in the air pad 51.

The

air pipes

52a and 52b are both provided on one end (one short side) side of the air pad 51 in the longitudinal direction.
The internal air pipe 53 is, for example, a silicon tube, and is provided inside the air pad 51 along the longitudinal direction of the air pad 51. The internal air pipe 53 is joined to the end of the air pipe 52b (the side not exposed to the outside) and extends from the end to the inside opposite side of the air pad 51 (the short side facing the short side of the air pipe 52b). ing.

Therefore, air inside the air pad 51 and in the vicinity of the air pipe 52a is discharged from the air pipe 52a. On the other hand, air located inside the air pad 51 and farthest from the air pipe 52b is discharged from the air pipe 52b.

Here, when the internal air tube 53 is a rubber tube or other material tube, it tends to deteriorate over time, and it tends to be difficult to transmit vibration of air. On the other hand, since the internal air pipe 53 is a silicon tube, there is an effect that the internal air pipe 53 is hardly deteriorated over time and easily transmits air vibration for a long period of time.

The air pad 51 has

adhesive portions

54 and 55 where predetermined areas facing each other adhere to each other. The bonding portion 54 is formed on the symmetry axis along the longitudinal direction of the air pad 51 at a predetermined length (elongated shape along the symmetry axis) at predetermined intervals. The bonding portion 55 is formed in an elongated shape along the width direction of the air pad 51 between the adjacent bonding portions 55. Therefore, the air pad 51 can be bent at each bonding portion 55.

The cushion member provided in the air pad 51 is disposed in each region surrounded by the

adhesive portions

54 and 55 and is positioned so as not to move by the surrounded

adhesive portions

54 and 55.

As shown in FIG. 3, the air merging section 60 merges the

rubber tubes

61a and 61b joined to the

air tubes

52a and 52b, respectively, and the air discharged from the

rubber tubes

61a and 61b, respectively, from one outlet. An air merging member 62 to be discharged and a rubber tube 63 that sends air discharged from the air merging member 62 to the main body 70 are provided.

The rubber tube 61a is joined to the air tube 52a, and the rubber tube 61b is joined to the air tube 52b.
The air confluence member 62 is, for example, a pipe formed in a T shape. The air joining member 62 joins and outputs the air from the rubber tube 61a and the air from the rubber tube 61b. The rubber tube 63 sends the air output from the air merging member 62 to the main body 70.

The main body 70 detects the biological information of the subject on the air pad sensor 50 based on the vibration of the air sent from the rubber tube 63.

FIG. 4 is an external perspective view of the main body 70 of the biological information detection apparatus 10. The main body 70 can be used in a state separated from the air circulation unit 60 shown in FIG. 3 when the biological information of the subject is not detected.

FIG. 5 is a block diagram showing a functional configuration of the main body 70.
The main body 70 includes a piezoelectric element 71 that generates a signal in response to vibration of air from the rubber tube 63, a filter processing unit 72 that performs a filtering process on a biological signal generated by the piezoelectric element 71, and a biological body that has been filtered. And a signal processing unit 73 that detects biological information such as a respiration rate and a heart rate based on the signal.

Furthermore, the main body 70 includes a memory 74 for recording the detected biological information, a communication unit 75 for transmitting / receiving information to / from the outside, a monitor 76 for displaying biological information and the like, and a touch panel for input operation. 77, a central processing unit (CPU) 78 that performs overall control, and an environmental sensor 79 that detects environmental information.

The filter processing unit 72 performs a low-pass filter (LPF) process and a high-pass filter (HPF) process on the signal from the piezoelectric element 71 in parallel. Specifically, the filter processing unit 72 performs LPF processing of, for example, 1.0 Hz or less for detecting the respiratory rate, and performs HPF processing of, for example, 2.0 Hz or more for detecting the heart rate. At this time, the filter processing unit 72 may perform band pass filter processing of 2 to 15 Hz in order to remove noise.

The signal processing unit 73 monitors the signal subjected to the LPF processing by the filter processing unit 72, generates a respiration rate pulse at a timing when the signal exceeds the zero level, and counts the respiration rate pulse. Detect respiratory rate.

Further, in parallel with the above processing, the signal processing unit 73 detects the absolute value of the signal subjected to HPF processing by the filter processing unit 72 and amplifies the absolute value. Then, the signal processing unit 73 generates a heart rate pulse at a timing when the amplified absolute value exceeds a predetermined threshold, and detects the heart rate of the human body by counting the heart rate pulse.
Note that the signal processing unit 73 is not limited to the above-described processing, and may execute other processing to detect biological information such as a human respiratory rate and a heart rate.

The biological information detected by the signal processing unit 73 is recorded in the memory 74. The biometric information recorded in the memory 74 is displayed on the monitor 76 or transmitted to the biometric information management server 30 via the communication unit 75 in a state where the main body unit 70 is separated from the air merging unit 60 (FIG. 4). Or

The communication unit 75 transmits the information detected by the signal processing unit 73 to the biological information management server 30 in real time or the biological information recorded in the memory 74 at a predetermined timing. The communication unit 75 receives information transmitted from the biological information management server 30.

The monitor 76 displays the biological information detected by the signal processing unit 73 or the biological information read from the memory 74. The monitor 76 displays information transmitted from the biological information management server 30. Thereby, for example, information transmitted by the doctor, nurse, caregiver or the like using the information terminal device 20 is displayed on the monitor 76. Furthermore, the monitor 76 can also display e-mail and SNS (Social Networking Service) information transmitted via the Internet.

SNS information is not open to everyone on the Internet, but limited. For example, an administrator (for example, a doctor in charge) who manages SNS information selects a person (for example, a family member, a nurse, a caregiver, or a helper) who can view SNS information with the administrator authority. An ID and a password are issued to the selected person.

The information terminal device 20 can input the selected person's ID and password to the biometric information management server 30 and log in, and browse the biometric information of the patient (target person) from the biometric information management server 30. . Further, the information terminal device 20 receives emergency alert information from the biological information management server 30 when there is a sudden change in the condition of the patient.

If the information transmitted by the doctor, nurse, caregiver, etc. using the information terminal device 20 is a text document or image, it is displayed on the monitor 76 as described above, but the voice information (doctor, nurse) , Voice of a caregiver or the like) may be output from a speaker not shown.

On the other hand, the subject may speak his / her physical condition / state through a microphone not shown. In this case, the audio information input to the microphone is transmitted to the biological information management server 30 via the communication unit 75. And a doctor, a nurse, and a caregiver can listen to a subject's utterance using the information terminal device 20 which each possesses.

When the operation information is input, the touch panel 77 outputs the operation information to the CPU 78. Based on operation information from the touch panel 77, the CPU 78 controls signal processing, writing / reading of information to / from the memory 74, display contents of the monitor 76, transmission / reception of information by the communication unit 75, and the like.

The environmental sensor 79 is a sensor that detects temperature, humidity, room brightness, noise, odor, atmospheric pressure, etc. as environmental information. The detected environment information is recorded in the memory 74 as log information together with the biological information. The log information is recorded in the memory 74, for example, continuously for one year. As a result, it is possible to predict how the biological information changes depending on conditions such as the month, time, season, place (place (latitude / longitude) where the log information is recorded), country, or city.

As described above, the biological information detecting apparatus 10 according to the present embodiment is provided in the air pad 51 of the air pad sensor 50 from the end of the air pipe 52b (the side not exposed to the outside) to the opposite side of the longitudinal direction of the air pad 51. An internal air pipe 53 extending to the top is provided.

For this reason, when the subject is sleeping near the end of the air pad 51 (on the opposite side of the

air pipes

52a and 52b), if the air pad 51 is deformed by the heartbeat or breathing of the subject, the air vibration due to the deformation is almost not. Without being attenuated, the internal air pipe 53 is transmitted and output from the air pipe 52b. Further, the air vibration due to the above deformation is also output to some extent from the air pipe 52a. The air vibrations output from the

air pipes

52 a and 52 b are merged at the air merging unit 60 and output to the main body unit 70.

Therefore, even when the subject is sleeping near the end of the air pad 51 (opposite side of the

air pipes

52a and 52b), the biological information detecting device 10 can change the air pad 51 very slowly. A corresponding air vibration can be obtained, and biological information based on the air vibration can be detected.

Next, the biological information detected by the biological information detection apparatus 10 according to the present embodiment is compared with the biological information detected by the conventional biological information detection apparatus.
FIG. 6A is a diagram illustrating an experiment situation for obtaining the detection result of the biological information according to the present embodiment in the case where the subject is lying near the end of the air pad (opposite side of the air tube). FIG. 6B is a diagram illustrating an experimental situation for obtaining a detection result of conventional biological information.

Conventionally, the air pad has only one air tube. Therefore, in order to obtain the detection result of the conventional biological information, it is only necessary to detect the biological information based only on the air discharged from the air tube 52a without the air being discharged from the air tube 52b.

FIG. 7 is a diagram showing signal waveforms of the respiratory rate (upper stage) and heart rate (lower stage), which are biological information of the present embodiment. FIG. 8 is a diagram showing signal waveforms of respiratory rate (upper stage) and heart rate (lower stage), which are conventional biological information.

7 and FIG. 8, the amplitude level of the signal waveform of the respiratory rate and the heart rate obtained by the biological information detection apparatus 10 according to the present embodiment is larger than that in the past. For this reason, it turns out that the respiration rate and the heart rate are easy to be detected compared with the past.

FIG. 9 is a diagram showing signal waveforms of respiration rate (upper stage) and heart rate (lower stage), which are biological information when the air pad sensor is laid under the futon. FIG. 10 is a diagram illustrating signal waveforms of respiratory rate (upper stage) and heart rate (lower stage), which are biological information when the air pad sensor is not placed under the futon (the subject is directly placed).

9 and 10, when the air pad sensor 50 is laid under the futon, the biological information is detected with high accuracy. The air pad sensor 50 is not a special member, and is laid under a commonly used bed mattress or a futon. For this reason, the subject can sleep without feeling uncomfortable.

Incidentally, in the air pad 51, a cushion member for forming a gap in the inside thereof is provided. For this reason, when the vicinity of the end of the air pad 51 (opposite side of the

air pipes

52a and 52b) is deformed, the air vibration due to the deformation is attenuated by the cushion member before reaching the

air pipes

52a and 52b side. Tend.

On the other hand, since the biological information detection apparatus 10 according to the present embodiment includes the above-described internal air tube 53 in the air pad 51, air vibration due to deformation of the air pad 51 is not attenuated by the cushion member. It can be transmitted to the piezoelectric element 71 of the main body 70 via the internal air pipe 53. As a result, the biological information detection apparatus 10 can detect the biological information of the subject with high accuracy regardless of the position on the air pad 51 where the subject is sleeping.

In addition, since the biological information detection apparatus 10 can detect biological information with high accuracy by using only one piezoelectric element 71, it is possible to reduce costs.

It should be noted that the present invention is not limited to the above-described embodiment, and can be applied to a design modified within the scope of the matters described in the claims. In the future, the present invention can be applied to a smart house with a nursing service as follows, for example.

FIG. 11 is a diagram showing a smart house of a house with a care service in which the biological information distribution system of the above embodiment is used. The LED lighting device in the house incorporates a space / human sensor and an infrared sensor. The plurality of LED lighting devices having such a configuration are provided in indoor places (corridors, baths, toilets, bedrooms, etc.) in a state where they are connected to the network, and detect the indoor positional information of the patient. The LED lighting device may be attached to the patient's arm, and may communicate with a wristwatch type device with Bluetooth (registered trademark) communication function to detect the position information inside the patient. The location information is transmitted to the biological information management server 30 shown in FIG. 1 via the Internet, and then transmitted to the biological information detection device 10 and the information terminal device 20.

As a result, the biological information detection device (care monitor) 10 and the information terminal device 20 always output the patient position information based on the patient position information transmitted from the LED lighting device. Thereby, the user can grasp not only the health state of the patient in the bedroom, but also the whereabouts of the patient indoors and whether the patient has gone out of the room (whether he / she was jealous).

In addition, the biological information management server 30 can perform the following control when the biological information detection device 10 or the information terminal device 20 can control an air conditioner, a humidifier, and a dehumidifier (hereinafter referred to as “air conditioner”) in the smart house. Can also be done. For example, the biological information management server 30 directly controls the cooling / heating device or the like via the biological information detection device 10 or the information terminal device 20 so that the environment when the biological information is stable based on statistical data is obtained. May be. Thereby, the biometric information management server 30 can remotely operate the air conditioner and the like in the smart house so that the environment of the subject person automatically becomes an optimal state.

The shape of the air pad 51 shown in FIG. 3 is a long shape, but is not limited thereto. For example, the shape of the air pad 51 may be a square, a rectangle, a circle, an ellipse, or the like. When detecting the biological information of the baby, the air pad 51 may be sized to fit in the diaper and placed in the diaper.

DESCRIPTION OF SYMBOLS 1 Biological information distribution system 10 Biological information detection apparatus 20 Information terminal apparatus 30 Biological information management server 50 Air pad sensor 51

Air pad

52a, 52b Air exhaust port 53 Internal air pipe 60 Air confluence part 70 Main part 71 Piezoelectric element 72 Filter processing part 73 Signal Processing part

Claims

Under the detection target person of the biological information, an air bag arranged so as to cross the height direction of the detection target person,
A first air pipe and a second air pipe which are both provided on one end side in the longitudinal direction of the air bag and whose both ends are respectively disposed outside and inside the air bag;
An internal air pipe provided inside the air bag, joined to the second air pipe, and extended from the second air pipe to the other end side in the longitudinal direction of the air bag;
An air pad for detecting biological information.
The air pad for detecting biological information according to claim 1, further comprising a cushion member provided inside the air bag and for forming a gap in the air bag when there is no external pressure.
The air pad for detecting biological information according to claim 1 or 2, wherein the internal air tube is a silicon tube.
Provided below the detection target person of the biological information so as to intersect with the height direction of the detection target person, and one end side in the longitudinal direction of the air bag, both ends are outside the air bag And the first and second air pipes respectively disposed therein, and are provided inside the air bag, joined to the second air pipe, and from the second air pipe to the longitudinal direction of the air bag. An air pad for detecting biological information having an internal air tube extending to the other end side in the direction;
An air merging section for merging air from the first and second air pipes;
Biological information detection means for detecting biological information of the person to be detected based on vibrations of air merged at the air merge section;
A biological information detection apparatus comprising:
A communication unit for transmitting biological information detected by the biological information detecting means and other information and receiving information from the outside;
The biological information detection apparatus according to claim 4, further comprising: an information output unit that outputs at least one of text information, image information, and audio information received by the communication unit.
Provided below the detection target person of the biological information so as to intersect with the height direction of the detection target person, and one end side in the longitudinal direction of the air bag, both ends are outside the air bag And the first and second air pipes respectively disposed therein, and are provided inside the air bag, joined to the second air pipe, and from the second air pipe to the longitudinal direction of the air bag. A living body information detecting air pad having an internal air pipe extending to the other end side in the direction, an air merging section for merging air from the first and second air pipes, and the air merging section. A biological information detection device comprising: biological information detection means for detecting biological information of the detection subject based on vibration of the air.
An information terminal device capable of communication;
A server device that receives the biological information transmitted from the biological information detection device, and transmits at least one of the biological information and the state of the detection target person based on the biological information to the information terminal device;
A biometric information distribution system.
The biological information distribution system according to claim 6, wherein the server device transmits, to the information terminal device, information indicating that the detection target person has left the floor as the state of the detection target person.