WO2019058559A1

WO2019058559A1 - Body motion monitoring apparatus and body motion monitoring system

Info

Publication number: WO2019058559A1
Application number: PCT/JP2017/034571
Authority: WO
Inventors: 伴之服部
Original assignee: 株式会社ファーストアセント
Priority date: 2017-09-25
Filing date: 2017-09-25
Publication date: 2019-03-28
Also published as: JP6344835B1; JPWO2019058559A1

Abstract

This body motion monitoring apparatus includes: a tension generating member that generates tension corresponding to body motion of a person in bed in the direction of gravity; a detection element that detects the body motion of the person in bed on the basis of the tension; and an identification device that identifies, in the body motions of the person in bed detected by the detection element, a first body motion caused by breathing of the person in bed and/or a second body motion caused by heartbeats of the person in bed.

Description

Body movement monitoring device and body movement monitoring system

The present invention relates to a motion monitoring device and a motion monitoring system.

A determination device for determining sleep apnea syndrome is disclosed (see Patent Document 1).

In recent years, as a countermeasure for sudden infant death syndrome (SIDS), it has been required for nurses to monitor the normality of breathing during sleep of infants. Using the technique disclosed in Patent Document 1, there is a possibility that the normality of the breathing of the infant can be monitored by detecting the heartbeat signal of the infant by the heartbeat signal detecting member placed under the body of the infant.

Japanese Patent Application Laid-Open No. 2005-160650

In nursery schools in Japan, as bedding for infants and toddlers, cot, whose floor area is made of elastic mesh, is being introduced from the viewpoint of hygiene. When the technique disclosed in Patent Document 1 is applied to a cot, there is a possibility that sleep comfort may be impaired. If the heart rate signal detection member placed under the baby's body is made smaller or thinner in order to emphasize comfort, the accuracy in monitoring the breathing of the baby may be lowered.

According to the first aspect of the present invention, the motion monitoring apparatus detects the motion of the bedded person based on the tension and a tension generating member that generates a tension corresponding to the body motion of the bedded person in the direction of gravity. A detection element, and at least one of a first movement generated by breathing of the bed person and a second movement generated by a heartbeat of the bed person, regarding the movement of the bed person detected by the detection element; And an identification device for identifying body movement.
According to a second aspect of the present invention, in the body movement monitoring device according to the first aspect, when the displacement amount of the body movement of the bedded person in the gravity direction increases, the tension of the tension generating member increases, It is preferable that the tension of the tension generating member is reduced when the displacement amount of body movement of the bedded person in the gravity direction is reduced.
According to a third aspect of the present invention, in the body movement monitoring device according to the first aspect or the second aspect, the detection element is a piezoelectric element configured by sandwiching a piezoelectric material between a pair of electrodes, and the tension The generating member is a wire which is connected to one of the pair of electrodes and pulls the one of the electrodes when the tension increases, and the piezoelectric element is such that the tension generating member is the one of the electrodes. It is preferable to detect an increase in the amount of displacement of body movement of the bed by detecting the voltage that the tension causes in the piezoelectric material by pulling.
According to a fourth aspect of the present invention, in the body movement monitoring device of the first aspect or the second aspect, the detection element is a piezoelectric element configured by sandwiching a piezoelectric material between a pair of electrodes, and the tension The generation member is a wire connected to the end of the piezoelectric element, and when the tension increases, the wire pulls the end so that the piezoelectric material is distorted, and the piezoelectric element is the wire having the end It is preferable to detect an increase in the amount of displacement of body movement of the bedded person by detecting a voltage that the tension causes in the piezoelectric material by pulling a part.
According to a fifth aspect of the present invention, in the body movement monitoring device of the first aspect or the second aspect, the detection element is a piezoelectric element configured by sandwiching a piezoelectric material between a pair of electrodes, and the tension The generating member is a wire connected to the piezoelectric element and in contact with the one electrode of the piezoelectric element via the pressing member, and the piezoelectric element is generated by the pressing member pressing the one electrode. It is preferable to detect an increase in displacement of body movement by detecting the voltage that the tension causes in the piezoelectric material.
According to a sixth aspect of the present invention, in the body movement monitoring device according to any one of the first aspect to the fifth aspect, the identification device is a displacement amount of body movement of the bed person in the gravity direction and Preferably, the at least one body movement is identified based on at least one of the displacement frequency and the increase / decrease frequency.
According to a seventh aspect of the present invention, in the body movement monitoring device according to any one of the first to sixth aspects, the tension generating member is provided along a bed having an elastic property of bedding. Preferably, the detection element is provided at a site other than the bed portion of the bedding.
According to an eighth aspect of the present invention, in the body movement monitoring device according to any one of the first to seventh aspects, notification information on the body movement of the at least one identified by the identification device is generated Preferably, the apparatus further comprises a transmission control device that transmits the notification information to the portable terminal via a transmitter.
According to a ninth aspect of the present invention, a motion monitoring system comprises a plurality of motion monitoring devices and a server. Each of the plurality of body movement monitoring devices is the body movement monitoring device according to any one of claims 1 to 7, wherein body movement information regarding the at least one body movement identified by the identification device. And a transmission control device that transmits the body movement information to the server via a transmitter. The server receives the body movement information, generates notification information based on the body movement information, and individual identification information corresponding to a specific body movement monitoring device that has transmitted the body movement information, and generates the notification information. A delivery control device for transmitting data to at least one portable terminal is provided.

According to the present invention, it is possible to obtain the effect that the accuracy in monitoring the respiration and heartbeat of the bed rest can be improved.

FIG. 1 is a view showing an example of bedding to which a motion monitoring apparatus according to an embodiment of the present invention is attached. FIG. 2 is a diagram showing an example of a body movement monitoring device. FIG. 3 is a diagram illustrating how the amount of displacement of body movement increases and decreases as time progresses. FIG. 4 is a diagram illustrating the connection between the piezoelectric element and the wire in the body movement monitoring device. FIG. 5 is a view exemplifying a notification mode for notifying the operator of an abnormality in the body movement detected by the body movement monitoring device. FIG. 6 is a diagram showing an example of processing performed by the processor executing a program in the signal processing device of the body movement monitoring device. FIG. 7 is a diagram showing an example of a body movement monitoring system including a plurality of body movement monitoring devices.

While demonstrating an example of the body

movement monitoring apparatus

1 or 1A in one embodiment of this invention using FIGS. 1-6, it is a figure of an example of the body movement monitoring system 100 containing several body movement monitoring apparatuses 1A. This will be described using 7.

FIG. 1 is a view showing an example of a bedding 2 to which a motion monitoring apparatus 1 according to an embodiment of the present invention is attached. FIG. 1 (a) shows the bed 2 with the physical movement monitoring device 1 attached, in which the bedded person 3 goes to bed. The bedding 2 is, for example, a cot, and the bed 3 is, for example, an infant. The bedding 2 has a cocoon floor 21, a frame 22 of the cocoon floor 21, and a leg 23 on which the frame 22 is mounted. The cocoon bed 21 accommodating the lying cocoon bed 3 is made of, for example, a mesh-like stretchable material. When the bedded person 3 lies on the bedside surface of the bedside 21, the vicinity of the center of the bedside 21 is displaced in the direction of gravity according to the weight of the bedded person 3. In the example of the bedding 2 shown to Fig.1 (a), the outer outline of the flame | frame 22 is comprised from a pair of

long sides

221 and 222 and a pair of

short sides

223 and 224.

The body movement monitoring device 1 has a piezoelectric element 11, a wire 12, a signal processing device 13, and a display 14. The piezoelectric element 11 is an example of a detection element that detects body movement of the bedded person 3 in the direction of gravity. The wire 12 is an example of a tension generating member that generates a tension in accordance with the body movement of the bed 3 in the direction of gravity. The wire 12 is provided along the above-mentioned heel floor 21 and disposed on the back of the heel floor surface. The wire 12 disposed along the back surface of the floor surface of the floor portion 21 extends in a first direction substantially parallel to the pair of

long sides

221 and 222 of the frame 22 of the bedding 2 when viewed from the installation surface of the bedding 2 It may be provided as it exists, may be provided to extend in a second direction substantially parallel to the pair of

short sides

223 and 224, or may be different from the first direction and the second direction. It may be provided to extend in the direction of three. Furthermore, the wire 12 may not be disposed along the back surface of the heel floor surface of the heel floor 21. For example, the wire 12 may be disposed along the heel floor surface of the heel floor portion 21 or may be provided by being woven into a material constituting the heel floor portion 21.

One end of the wire 12 is connected to the electrode of the piezoelectric element 11, and the other end is fixed to any part of the bedding 2. The wire 12 may be, for example, a piano wire having no elasticity, a spring having elasticity, a rubber, or a combination thereof. For example, when using a combination of a wire having no elasticity such as a piano wire and an elastic body such as a spring or rubber as the wire 12, the elastic body is interposed between the wire and the piezoelectric element 11. May be Also, instead of the wire 12, a belt-like member having a width or an elastic member having an elongated shape may be used as the tension generating member. The tension generating member may be any material, shape, or structure that does not inhibit the movement of the bed 3.

The piezoelectric element 11 generates a voltage when a force is applied. The piezoelectric element 11 is provided in any part of the bedding 2 other than the bed 21. In the example shown in FIG. 1A, the piezoelectric element 11 is fixed to the leg 23 of the bedding 2. When the piezoelectric element 11 produces a change in voltage based on the tension generated in the wire 12 according to the body movement of the bed 3 in the direction of gravity, the signal processing device 13 performs signal processing based on this, and the result is It is displayed on the display 14.

Note that a load cell may be used instead of the piezoelectric element 11. In that case, the load cell itself detects the strain generated in the load cell based on the tension generated in the wire 12. The piezoelectric element 11 may be used instead of the piezoelectric element 11 as a detection element that magnetically detects the tension generated in the wire 12 according to the body movement of the bed 3 in the direction of gravity or a detection element that optically detects it.

The bedded person 3 causes body movement in response to breathing and heart beat, as well as spontaneous movement such as moving hands and legs and hitting a turn. With the movement of the bed 3 in the direction of gravity, the bed 21 of the bedding 2 is displaced in the direction of gravity. As shown in FIG. 1 (b), when the displacement amount of the body movement 41 of the bed 3 in the direction of gravity increases, the vicinity of the center of the bed 21 is displaced in the direction of gravity and a wire provided along the bed 21. Tension of 12 will be increased.

When the vicinity of the center of the cocoon bed 21 is displaced in the direction of gravity, the amount of change in length of the cocoon floor surface of the cocoon bed 21 in the circumferential direction 42 becomes larger than that displacement amount. Even if the amount of increase in the amount of displacement of body movement is small, the tension in the circumferential direction 42 of the heel floor surface generated in the wire 12 greatly increases. Further, even if the amount of decrease in the amount of displacement of the body movement of the bed 3 in the direction of gravity is small, the tension in the circumferential direction 42 of the bed surface generated in the wire 12 is greatly reduced.

Therefore, even if a small body movement according to breathing or heartbeat is converted to a tension in the circumferential direction 42 of the bed surface, the movement 41 in the direction of gravity clearly appears as a change in tension of the wire 12. The change in tension of the wire 12 appears as a change in voltage at the piezoelectric element 11. That is, the piezoelectric element 11 detects the body movement of the bedded person 3 as a voltage change based on the tension of the wire 12. The signal processing device 13 analyzes the body movement of the bedded person 3 detected by the piezoelectric element 11 as the voltage change by signal processing. The signal processing device 13 causes the display 14 to display an abnormality occurrence notification message based on the signal processing result or the signal processing result.

FIG. 2 is a diagram showing an example of the above-described body movement monitoring device 1. The signal processing device 13 included in the body movement monitoring device 1 includes an identification device 15, a determination device 16, and an output control device 17. The identification device 15 acquires a signal indicating body movement of the bedded person 3 detected by the piezoelectric element 11 via a voltage sensor (not shown), and the detected body movement of the bedded person 3 is detected by the breathing of the bedded person 3 The first movement that occurs and the second movement that occurs due to the heartbeat of the bed person 3 are respectively identified. The difference between the first movement feature and the second movement feature will be described later with reference to FIG.

The determination device 16 determines the abnormal level of the body movement of the bed person 3 detected by the piezoelectric element 11 for each of the first body movement and the second body movement. The output control device 17 generates a notification message to the operator regarding the occurrence of an abnormality in a different manner in accordance with the abnormality level determined by the determination device 16 and causes the display 14 to output the notification message. For example, when the abnormal level is high, the message using the strong warning expression is displayed in red with a double box and a high level abnormal occurrence notification message is displayed on the display 14. When the abnormal level is low, a message using an alerting expression is enclosed in a frame and yellow, and a low level abnormal occurrence notification message is displayed on the display 14. Furthermore, a message notifying that no abnormality has occurred may be displayed on the display 14 in green, for example, with a dashed box. In addition to the color, the frame, and the expression, for example, the display mode such as the size, the thickness, and / or the blinking of the character may be changed according to the abnormal level. When the body movement monitoring device 1 according to an embodiment of the present invention is installed in a home, the operator is, for example, a family, and when the body movement monitoring device 1 is installed in a nursery, the operator is, for example, a nurse .

FIG. 3 is a diagram illustrating how the amount of displacement of body movement increases and decreases as time progresses. The first body movement 51 generated by the breathing of the bedded person 3 regularly occurs with the displacement amount d1 and the increase / decrease period 1 / f1 (increase / decrease frequency f1). The second movement 52 generated by the heartbeat of the bed rest 3 usually has a displacement d2 smaller than the displacement d1 and an increase / decrease cycle 1 / f2 shorter than the increase / decrease cycle 1 / f1 (increase / decrease frequency greater than the increase / decrease frequency f1 It is known to occur regularly in f2).

In FIG. 3, the irregular and complex third body movement 53 occurring in a specific period Δt from time T1 to time T2 moves the limbs, turns over, and so on. Is due to The displacement d3 of the third motion 53 is greater than the displacement d1 of the first motion 51 caused by the respiration of the bed 3 and the second motion 52 of the motion of the bed 3 It is considered to be larger than the displacement amount d2.

As described above, in the first body movement 51, the second body movement 52, and the third body movement 53, the difference in the characteristics is seen in terms of the displacement amount, the increase / decrease period of the displacement amount (increase / decrease frequency), and the generation period. Be The identification device 15 is voluntarily used by the bedded person 3 based on at least one of the displacement amount of the body movement of the bedded person 3 in the gravity direction detected by the piezoelectric element 11 and the increase / decrease frequency of the displacement amount. The third motion 53 due to exercise can be excluded, and the first motion 51 caused by the breathing of the bed 3 and / or the second motion 52 caused by the heart of the bed 3 can be identified. In addition to the first body movement 51, the second body movement 52, and the third body movement 53, other bodies whose differences in characteristics can be seen in terms of displacement amount, increase / decrease frequency of displacement amount, and generation period. If the movement is specified in advance, the body movement can be identified in the same manner.

An example of the abnormality level determination process of the first body movement 51 caused by the breathing of the bedded person 3 will be described below. When the increase / decrease frequency f1 of the first body movement 51 which is the displacement amount d1 generated by the respiration of the bedded person 3 decreases and falls below the first respiration frequency threshold tha1, for example, the determination device 16 (see FIG. 2) It is determined that a low level abnormality has occurred with respect to person 3's breathing. When the increase / decrease frequency f1 of the first body movement 51 further decreases and falls below a second respiration frequency threshold tha2 smaller than, for example, the first respiration rate threshold tha1, the determination device 16 determines that the patient 3 is breathing high. It is determined that a level abnormality has occurred.

When the increase / decrease frequency f1 of the first body movement 51 rises and exceeds, for example, the third respiration frequency threshold tha3, the determination device 16 determines that a low level abnormality has occurred with respect to the respiration of the bedded person 3. When the increase / decrease frequency f1 of the first body movement 51 further rises and exceeds the fourth respiration frequency threshold tha4 larger than, for example, the third respiration rate threshold tha3, the determination device 16 determines that the patient 3 is breathing high. It is determined that a level abnormality has occurred.

When the increase / decrease frequency f1 of the first body movement 51 is larger than the first respiration frequency threshold tha1 and smaller than the third respiration frequency threshold tha3, the determination device 16 determines that the patient 3 has normal respiration. Do.

An example of the determination of the abnormal level of the second movement 52 caused by the heartbeat of the bedded person 3 will be described below. When the increase / decrease frequency f2 of the second motion 52 which is the displacement amount d2 generated by the heartbeat of the bedded person 3 decreases and falls below the first heartbeat frequency threshold thb1, for example, the determination device 16 (see FIG. 2) It is determined that a low level abnormality has occurred with respect to the heart beat of the person 3. When the increase / decrease frequency f2 of the second motion 52 further decreases and falls below a second heartbeat frequency threshold thb2 smaller than, for example, the first heartbeat frequency threshold thb1, the determination device 16 determines that the heartbeat of the bed 3 is high. It is determined that a level abnormality has occurred.

When the increase / decrease frequency f2 of the second body movement 52 rises and exceeds, for example, the third heartbeat frequency threshold thb3, the determination device 16 determines that a low level abnormality has occurred with respect to the heartbeat of the bedded person 3. When the increase / decrease frequency f2 of the second body movement 52 further rises and exceeds the fourth heartbeat frequency threshold thb4, which is larger than, for example, the third heartbeat frequency threshold thb3, the determination device 16 determines that the heartbeat of the bereaved 3 is high. It is determined that a level abnormality has occurred.

When the increase / decrease frequency f2 of the second body movement 52 is larger than the first heartbeat frequency threshold thb1 and smaller than the third heartbeat frequency threshold thb3, the determination device 16 determines that the heartbeat of the bedtime person 3 is normal. Do.

FIG. 4 is a view exemplifying a connection mode of the piezoelectric element 11 and the wire 12 in the body movement monitoring device 1. The connection mode between the piezoelectric element 11 and the wire 12 shown in FIG. 4 (a) corresponds to the connection mode shown in FIG. 1, but shows a view from the upper side of the drawing of FIG. 1 (b) There is.

In the example shown in FIG. 4A, the piezoelectric element 11 is fixed to the leg 23 of the bedding 2. The piezoelectric element 11 is configured by sandwiching a piezoelectric material 113 between a pair of

electrodes

111 and 112. The wire 12 is connected to one of the pair of

electrodes

111 and 112. When the tension of the wire 12 increases, the wire 12 pulls the electrode 111 in the left direction in the drawing. The piezoelectric element 11 detects an increase in the amount of displacement of body movement of the bedded person 3 as a change in voltage that causes the piezoelectric material 113 to generate tension.

Also in the example shown in FIG. 4B, the piezoelectric element 11 is fixed to the leg 23 of the bedding 2. The wire 12 is connected to one end of the piezoelectric element 11. The wire 12 is wired so as to cover one of the pair of

electrodes

111 and 112 from the side of one end of the piezoelectric element 11 to the side of the other end. The pressing member 6 is provided between the wire 12 and the electrode 111 covered by the wire 12, and the wire 12 contacts the electrode 111 via the pressing member 6, and when the tension of the wire 12 increases, the pressing member 6 becomes the electrode 111. Press in the left direction on the paper. The piezoelectric element 11 detects an increase in the amount of displacement of body movement of the bedded person 3 as a change in voltage that causes the piezoelectric material 113 to generate tension.

In the example shown in FIG. 4 (c), one end of the piezoelectric element 11 is fixed to the leg 23 of the bedding 2. The wire 12 is connected to the other end of the piezoelectric element 11. The wire 12 is connected to one of the pair of

electrodes

111 and 112. When the tension of the wire 12 is increased, the piezoelectric material 113 is distorted by pulling the end of the piezoelectric element 11 to which the wire 12 is connected in the left direction in the drawing. The piezoelectric element 11 detects an increase in the amount of displacement of body movement of the bedded person 3 as a change in voltage that causes the piezoelectric material 113 to generate tension.

FIG. 5 is a view exemplifying a notification mode for notifying the operator of an abnormality in the body movement of the bedded person 3 detected by the body movement monitoring device 1. As described above, the body movement monitoring device 1 has the display 14 whose output is controlled by the output control device 17 (see FIG. 2) that the signal processing device 13 has. When an abnormality in the body movement of the bedded person 3 is detected, the output control device 17 generates notification information on body movement (a notification message to the operator regarding the abnormality occurrence) and outputs it to the display 14. Based on the notification information, in FIG. 5A, “Warning” and “Check breathing” are displayed as the warning message 141 on the screen of the display 14. By such a warning display, the operator is notified of an abnormality in body movement.

In FIG. 5B, the body movement monitoring device 1 further has a warning light 142 and a speaker 143 whose output is controlled by the output control device 17 (see FIG. 2) of the signal processing device 13, and the warning light 142 and the speaker An example is shown in which 143 is installed at a site other than the bedding portion 21 of the bedding 2. When an abnormality in the movement of the bedded person 3 is detected, the output control device 17 performs control to turn on the warning light 142 and / or control to announce an alarm from the speaker 143.

In FIG. 5C, the body movement monitoring device 1A having the piezoelectric element 11A, the wire 12A, and the signal processing device 13A further has a transmitter 18, and the transmitter 18 is other than the bed 21 of the bedding 2. The example installed at the site is shown. The piezoelectric element 11A and the wire 12A perform functions respectively corresponding to the piezoelectric element 11 and the wire 12 described above. The signal processing device 13A includes a transmission control device 19 that performs transmission control of the transmitter 18, and an identification device 15A and a determination device 16A that perform functions corresponding to the identification device 15 and the determination device 16 described above. When an abnormality in the body movement of the bedded person 3 is detected, the transmission control device 19 generates notification information on the body movement, and transmits the notification information to the remote portable terminal 144 via the transmitter 18. In the example shown in FIG. 5C, "Warning" "Check breathing" is displayed as the warning message 141 on the screen of the portable terminal 144 that has received the notification information on the body movement transmitted from the body movement monitoring device 1A. ing. By such a warning display, an abnormality in body movement is notified to the operator.

The respective functional units (the

identification device

15 or 15A, the

determination device

16 or 16A, the output control device 17 or the transmission control device 19) included in the

signal processing device

13 or 13A of the body

movement monitoring device

1 or 1A described above A processor, a program memory, and a work memory are mounted on the

device

13 or 13A, and are logically realized by the processor executing various programs stored in the program memory on the work memory.

FIG. 6 is a diagram showing an example of processing performed by the processor executing a program in the signal processing device 13 of the body movement monitoring device 1. In step S <b> 10, the identification device 15 acquires a signal indicating body movement of the bed person 3 detected by the piezoelectric element 11. In step S20, the identification device 15 performs a first movement and bedtime 3 caused by breathing of the bedtime 3 with respect to the body movement of the bedtime 3 detected by the piezoelectric element 11 based on the signal acquired in step S10. The second motions caused by the heartbeats of each are identified respectively. In step S30, the determination device 16 determines an abnormal level based on the above-described threshold value for each of the first motion and the second motion identified in step S20. In step S40, the output control device 17 generates a notification message to the operator regarding the occurrence of an abnormality in accordance with the abnormality level determined in step S30, and causes the display 14 to output the message. In the example of FIG. 5 (a), a warning message 141, that is, "Warning" or "Check breathing" is displayed on the screen of the display 14 as a notification message to the operator. In this display example, as described above, the warning message 141 is displayed in a mode according to the abnormal level of the physical movement of the bedded person 3.

It is also possible to switch the output destination of the notification information in accordance with the abnormal level of the body movement of the bedded person 3. For example, in the body movement monitoring device 1 illustrated in FIG. 5B, when the increase / decrease frequency f1 of the first body movement 51 falls below the first respiration frequency threshold tha1, “Warning” “respiration confirmation” A warning message 141 is displayed on the display 14. When the increase / decrease frequency f1 of the first motion 51 falls below the second respiration frequency threshold tha2, the warning light 142 is turned on or an alarm is announced from the speaker 143.

In the body movement monitoring device 1 illustrated in FIG. 5C, when the increase / decrease frequency f1 of the first body movement 51 falls below the first respiration frequency threshold tha1, a warning message of “Warning” “confirm breathing” While 141 is displayed on the display 14, a similar warning message 141 is displayed in yellow on the screen of the portable terminal 144 owned by a specific operator. When the increase / decrease frequency f1 of the first motion 51 falls below the second respiration frequency threshold tha2, a similar warning message 141 is displayed in red on the screen of the portable terminal 144 possessed by a plurality of operators. That is, the high level abnormality occurrence can be shared by a plurality of operators.

In the above, each function unit included in the signal processing device 13 is realized by software, but may be configured by hardware, or some functions may be implemented by software and the remaining functions are implemented by hardware. It may be configured.

FIG. 7 is a diagram showing an example of a body movement monitoring system 100 including a plurality of body movement monitoring devices 1A. In the example illustrated in FIG. 7, the body movement monitoring system 100 includes, for example, first to third body movement monitoring devices 1A provided in each of the three beddings 2 set in a nursery or the like, and the remote server 9. Including. In FIG. 7, # 1, # 2, and # 3 are attached to the first to third motion monitoring devices 1A, respectively. Each body movement monitoring device 1A includes a piezoelectric element 11A, a wire 12A, a signal processing device 13A, and a transmitter 18. The piezoelectric element 11A and the wire 12A perform functions corresponding to the piezoelectric element 11 and the wire 12 shown in FIGS. 1 and 2, respectively. The signal processing device 13A includes a transmission control device 19 that performs transmission control of the transmitter 18, and an identification device 15A and a determination device 16A that perform functions corresponding to the identification device 15 and the determination device 16 illustrated in FIG. In the identification device 15A, the determination device 16A, and the transmission control device 19, a processor, a program memory, and a work memory are mounted on the signal processing device 13A, and the processor executes various programs stored in the program memory on the work memory. Is logically realized. The transmitter 18 is installed at a site other than the bed 21 of the bedding 2.

A delivery control device 91 is arranged in the server 9. The delivery control device 91 has a processor, a program memory and a work memory mounted on the server 9, and is logically realized by the processor executing various programs stored in the program memory on the work memory.

The transmission control device 19 of the signal processing device 13A transmits the body movement information related to the body movement of the bed person 3 detected by the piezoelectric element 11A together with the individual identification information corresponding to the movement monitoring device 1A to the transmitter 18 and the base station 7. And to the server 9 via the network 8. The identification device 15A is a body movement of the bedded person 3 detected by the piezoelectric element 11A, a first body movement 51 caused by breathing of the bedded person 3 and / or a second body movement 52 caused by the heartbeat of the bedded person 3 Identify The determination device 16A detects an abnormal level of the first movement 51 caused by the respiration of the bedded person 3 based on a signal corresponding to the movement of the bedded person 3 and / or a second body movement caused by the heartbeat of the bedded person 3. Determine 52 abnormal levels.

The delivery control device 91 included in the server 9 receives the body movement information transmitted from each of the plurality of body movement monitoring devices 1A via the communication interface (not shown). The distribution control device 91 generates an abnormality occurrence notification message to be distributed to the operator in different modes according to the abnormal level of the body movement of the bedded person 3 in each of the plurality of body movement monitoring devices 1A based on the received body movement information. Do. The distribution control device 91 generates notification information based on the generated abnormality occurrence notification message and the individual identification information corresponding to the specific body movement monitoring device 1A that has transmitted the body movement information, and the notification information is It transmits to one or more portable terminals 144 via a communication interface (not shown). In the example illustrated in FIG. 7, high-level abnormalities related to both breathing and heartbeat of bedded person 3 who goes to bed in bed 2 with the second motion monitoring device 1A (# 2) attached are detected. At the top of the screen, a warning message 145 in a strong expression of “# 2 breathing / heartbeat urgent confirmation” with a double frame is displayed in red. A low level abnormality related to the breathing of bedded person 3 who goes to bed has been detected by the bedding 2 to which the motion monitoring device 1A (# 3) is attached, so a frame is attached to the screen of the portable terminal 144. The warning message 146 is displayed in yellow. As for bedded person 3 who goes to bed in bed 2 with body motion monitoring device 1A (# 1) attached, since an abnormality is not detected in both breathing and heart rate, a frame of a broken line is attached to the screen of portable terminal 144 A notification message 147 "# 1 both breathing and heartbeat are normal" is displayed in green.

In the case where the plurality of mobile terminals 144 are associated with each of the plurality of body movement monitoring devices 1A (# 1, # 2, # 3), the delivery control device 91 makes the plurality of body movement monitoring devices 1A in advance. The notification information is transmitted to the associated portable terminal 144. The server 9 includes destination information such as the address or the telephone number of the portable terminal 144 associated with the plurality of individual identification information uniquely assigned to the plurality of body movement monitoring devices 1A (# 1, # 2, # 3). Is stored.

According to the body movement monitoring system 100 including the body

movement monitoring device

1 or 1A in the present embodiment or the plurality of body movement monitoring devices 1A in the present embodiment, the following effects can be obtained.

(1) The body

movement monitoring device

1 or 1A detects the body movement of the bedded person 3 based on the tension and the

wire

12 or 12A in which the tension corresponding to the body movement of the bedded person 3 in the gravity direction is generated. 11A and the movement of the bed 3 detected by the

piezoelectric element

11 or 11A, the first movement 51 caused by the breathing of the bed 3 and the second movement 52 caused by the heartbeat of the bed 3 And an

identification device

15 or 15A for identifying at least one body movement. Therefore, it is possible to sensitively detect minute body movements and to improve the monitoring accuracy of the breathing and heartbeat of the bedded person 3.

(2) In the body

movement monitoring device

1 or 1A, when the displacement amount of the body movement 41 of the bed 3 in the gravity direction increases, the tension of the

wire

12 or 12A increases, and the body movement 41 of the bed 3 in the gravity direction As the amount of displacement decreases, the tension of the

wire

12 or 12A decreases. Therefore, the regularity of the increase / decrease period (increase / decrease frequency) of the displacement amount of the body movement can be accurately identified.

(3) In the body

movement monitoring device

1 or 1A, the

piezoelectric element

11 or 11A is configured by sandwiching the piezoelectric material 113 between the pair of

electrodes

111 and 112. The

wire

12 or 12A is connected to one of the pair of

electrodes

111 and 112 and pulls the electrode 111 when the tension increases. Alternatively, the

wire

12 or 12A is connected to the end of the

piezoelectric element

11 or 11A, and when the tension increases, the piezoelectric material 113 is distorted by pulling the end. Alternatively, the

wire

12 or 12A is connected to the

piezoelectric element

11 or 11A and is in contact with the electrode 111 of the

piezoelectric element

11 or 11A via the pressing member 6, and when the tension increases, the pressing member 6 presses the electrode 111. When the tension increases, the electrode 111 is pulled, the piezoelectric material 113 is distorted, or the electrode 111 is pressed. The

piezoelectric element

11 or 11A detects an increase in the amount of displacement of the body movement 41 of the bedded person 3 by detecting a voltage that causes the piezoelectric material 113 to generate tension. Therefore, it is possible to make the aspect of the

piezoelectric element

11 or 11A different according to the aspect of the bedding 2, and the attachment location of the

piezoelectric element

11 or 11A to the bedding 2 is unlikely to be restricted.

(4) In the body

movement monitoring device

1 or 1A, the

discrimination device

15 or 15A selects the displacements d1 and d2 of the

body movement

51 and 52 of the bed 3 in the direction of gravity and the increase / decrease frequency f1 and f2 of the displacement. Based on at least one of the values, the motion of at least one of the first motion 51 caused by the breathing of the bedded person 3 and the second motion 52 caused by the heartbeat of the bedded person 3 is identified. Therefore, it becomes possible to identify body movement simply without requiring a heartbeat signal detection device or the like.

(5) In the body

movement monitoring device

1 or 1A, the

wire

12 or 12A is provided along the elastic bed portion 21 of the bedding 2. The

piezoelectric element

11 or 11 </ b> A is provided at a portion of the bedding 2 other than the bed portion 21. Therefore, the comfort of sleeping person 3 is not impaired.

(6) In the body movement monitoring system 100 including the plurality of body movement monitoring devices 1A, the determination device 16A, and the output control device 17A, each of the plurality of body movement monitoring devices 1A is a bed identified by the identification device 15A. The system further includes a transmission control device 19 that generates body movement information related to body movement of the person 3 and transmits the body movement information to the server 9 via the transmitter 18. The server 9 receives body motion information, generates notification information based on the body motion information and the individual identification information corresponding to the specific motion detection device 1A that has transmitted the body motion information, and generates at least one piece of notification information. It has a distribution control device 91 that transmits data to the portable terminal 144. Based on the notification information transmitted to the portable terminal 144, the

abnormality occurrence notifications

145 and 146 to the operator are portable in different manners according to the abnormal level of the physical movement of the bedded person 3 in each of the plurality of physical movement monitoring devices 1A. It is displayed on the screen of the terminal 144. Therefore, while being able to ease the process that a nursery teacher must confirm the breathing and heart rate at bedtime of a plurality of children in the nursery in a few minutes in the nursery, it is possible to promptly detect an abnormality in breathing and heart of children. can do.

In the body movement monitoring system 100 shown in FIG. 7, an identification device 15A, a determination device 16A, and a transmission control device 19 are disposed in each of the plurality of body movement monitoring devices 1A. However, the identification device 15A and the transmission control device 19 may be disposed in the signal processing device 13A of each body movement monitoring device 1A, and the determination device 16A and the distribution control device 91 may be disposed in the server 9. The transmission control device 19 of each motion monitoring device 1A relates to the first motion 51 generated by the respiration of the bedded person 3 identified by the identification device 15A and / or the second motion 52 generated by the heartbeat of the bedded person 3. The body movement information is transmitted to the server 9 via the transmitter 18, the base station 7 and the network 8 together with the individual identification information corresponding to the body movement monitoring device 1A.

The determination device 16A of the server 9 determines the abnormal level of the body movement of the bed-person 3 corresponding to each body movement monitoring device 1A based on the body movement information and the individual identification information transmitted from the plurality of body movement monitoring devices 1A Do. The delivery control device 91 distributes an abnormality occurrence notification message to the operator in a different mode according to the abnormal level of the body movement of the bedded person 3 in each of the plurality of body movement monitoring devices 1A based on the determination result by the determination device 16A. Generate The distribution control device 91 generates notification information based on the generated abnormality occurrence notification message and the individual identification information corresponding to the movement monitoring device 1A, and sends the notification information to one or more portable terminals 144. Send.

Only the transmission control device 19 may be provided in the signal processing device 13A of each body movement monitoring device 1A, and the identification device 15A, the determination device 16A, and the distribution control device 91 may be provided in the server 9. The transmission control device 19 of each body movement monitoring device 1A transmits the body movement information related to the signal indicating the body movement of the bed person 3 detected by the piezoelectric element 11 together with the individual identification information corresponding to the body movement monitoring device 1A. 18, transmit to the server 9 via the base station 7 and the network 8. The identification device 15A, the determination device 16A, and the distribution control device 91 disposed in the server 9 respectively identify the body movement, determine the abnormality level, and generate an abnormality occurrence notification message to be distributed to the operator. The distribution control device 91 generates notification information based on the generated abnormality occurrence notification message and the individual identification information corresponding to the movement monitoring device 1A, and sends the notification information to one or more portable terminals 144. Send.

The identification device 15A, a part of the determination device 16A, and the transmission control device 19 are provided in the signal processing device 13A of each body movement monitoring device 1A, and the remaining part of the determination device 16A and the delivery control device 91 are provided in the server 9. It may be deployed. This is a deployment configuration that is useful when more flexible body movement abnormality determination threshold control is performed on a plurality of body movement monitoring devices 1A.

In the portable terminal 144, although it has been described that notification to the operator is performed by screen display based on the distributed notification information, notification to the operator is performed by voice information or vibration information in addition to such visual information. It may be An application for a body movement monitoring system may be installed on the mobile terminal 144 for notification to the operator.

The various functions of the body movement monitoring system 100 configured to include the body movement monitoring device 1A, the server 9, and the portable terminal 144 are described above so as to perform the detection, identification, determination, and notification described above as a whole. In the second embodiment, the functions may be properly shared by the respective devices.

The present invention is not limited at all to the configurations in the above-described embodiment and modifications as long as the characteristic functions of the present invention are not impaired.

DESCRIPTION OF SYMBOLS 1 body movement monitoring apparatus, 2 bedding, 3 floorers, 6 pressing members, 7 base stations, 8 networks, 9 servers, 11 piezoelectric elements, 12 wires, 13 signal processing apparatuses, 14 displays, 15 identification apparatuses, 16 determination apparatuses, Reference Signs List 17 output control device 18 transmitter 19 transmission control device 21 floor portion 22 frame 23

leg

41, 51, 52, 53 body movement 42 circumferential direction 91 delivery control device 100 body

movement monitoring system

111, 112 electrode, 113 piezoelectric material, 141, 145 warning message, 142 warning light, 143 speaker, 144 portable terminal, 146 warning message, 147 notification message, 221, 222 long side, 223, 224 short side

Claims

A tension generating member that generates tension in accordance with the movement of the bed person in the direction of gravity;
A detection element that detects body movement of the bedded person based on the tension;
With respect to the movement of the bedded person detected by the detection element, the body movement of at least one of the first body movement caused by the breathing of the bedded person and the second body movement caused by the heartbeat of the bedded person is identified Motion monitoring apparatus comprising:
In the body movement monitoring device according to claim 1,
When the displacement amount of the body movement of the bedded person in the direction of gravity increases, the tension of the tension generating member increases;
The body movement monitoring device according to claim 1, wherein the tension of the tension generating member is reduced when the displacement amount of the body movement of the bed person in the direction of gravity decreases.
In the body movement monitoring device according to claim 1 or 2,
The detection element is a piezoelectric element configured by sandwiching a piezoelectric material between a pair of electrodes,
The tension generating member is a wire which is connected to one of the pair of electrodes and pulls the one of the electrodes when the tension increases.
The piezoelectric element detects an increase in displacement of body movement of the bedded person by detecting a voltage that the tension generates in the piezoelectric material when the tension generating member pulls the one electrode. Monitoring device.
In the body movement monitoring device according to claim 1 or 2,
The detection element is a piezoelectric element configured by sandwiching a piezoelectric material between a pair of electrodes,
The tension generating member is a wire connected to an end of the piezoelectric element,
When the tension increases, the wire pulls the end to distort the piezoelectric material,
The piezoelectric element detects an increase in displacement of body movement of the bedded person by detecting a voltage generated by the tension on the piezoelectric material as the wire pulls the end.
In the body movement monitoring device according to claim 1 or 2,
The detection element is a piezoelectric element configured by sandwiching a piezoelectric material between a pair of electrodes,
The tension generating member is a wire connected to the piezoelectric element and in contact with the one electrode of the piezoelectric element via a pressing member.
The piezoelectric element detects an increase in the amount of displacement of the body movement of the bedded person by detecting a voltage that the tension causes the piezoelectric material when the pressing member presses the one of the electrodes. Monitoring device.
In the body movement monitoring device according to any one of claims 1 to 5,
The identification device monitors body movement of the at least one body movement based on a value of at least one of a displacement amount of the body movement in the gravity direction and an increase / decrease frequency of the displacement amount in the gravity direction. apparatus.
In the body movement monitoring device according to any one of claims 1 to 6,
The tension generating member is provided along an elastic bed of bedding.
The body movement monitoring device in which the detection element is provided at a site other than the bed portion of the bedding.
In the body movement monitoring device according to any one of claims 1 to 7,
The body movement monitoring apparatus further comprising: a transmission control device that generates notification information on the at least one body movement identified by the identification device and transmits the notification information to the portable terminal via a transmitter.
Multiple motion monitoring devices,
In a motion monitoring system comprising a server,
Each of the plurality of body movement monitoring devices is the body movement monitoring device according to any one of claims 1 to 7,
It further comprises a transmission control device that generates body movement information related to the at least one body movement identified by the identification device, and transmits the body movement information to the server via a transmitter.
The server is
The alert information is generated based on the body movement information and the individual identification information corresponding to the specific body movement monitoring device that has transmitted the body movement information, receiving the body movement information,
The movement monitoring system provided with the delivery control apparatus which transmits the said alerting | reporting information to at least one portable terminal.