JP2022119775A - electric furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electric furniture capable of more accurately detecting biological information.

SOLUTION: On the basis of a first detection result obtained by a first sensor for detecting at least a first state where a user is in electric furniture, and a second state where the user is not in the electric furniture, and a biological signal obtained by a second sensor put in the electric furniture and including the body motion of the user, a processing part disposed in the second sensor outputs information corresponding to at least a part of the biological signal when the first detection result is in the first state.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2022,JPO&INPIT

Description

Embodiments of the present invention relate to power furniture.

For example, there is a technique for detecting biometric information of a user of electric furniture from fluctuations in air pressure inside an air container. It is desired to detect biological information more accurately.

JP 2009-82585 A

Embodiments of the present invention provide electric furniture that can more accurately detect biometric information.

According to the embodiment, the electric furniture has a first state obtained by a first sensor that detects at least a first state in which a user is present in the electric furniture and a second state in which the user is not present in the electric furniture. When the first detection result is the first state based on the detection result and the biological signal including the body movement of the user obtained by the second sensor provided on the electric furniture, Biometric information corresponding to at least part of the biosignal is output.

Embodiments of the present invention can provide electric furniture that can more accurately detect biometric information.

FIG. 1 is a schematic perspective view illustrating the electric furniture according to the first embodiment. FIG. 2 is a schematic diagram illustrating the electric furniture according to the first embodiment. FIG. 3 is a flow chart illustrating the operation of the electric furniture according to the first embodiment. FIGS. 4A to 4D are schematic diagrams illustrating signals in the electric furniture according to the first embodiment. FIGS. 5(a) to 5(d) are schematic diagrams illustrating displays in the electric furniture according to the first embodiment. FIG. 6 is a schematic diagram illustrating the electric furniture according to the first embodiment. FIG. 7 is a schematic diagram illustrating the electric furniture according to the first embodiment. FIGS. 8A and 8B are schematic diagrams illustrating the electric furniture according to the embodiment. 9(a) to 9(d) are schematic diagrams illustrating another electric furniture according to the embodiment. FIG. 10 is a schematic diagram illustrating another electric furniture according to the embodiment. FIG. 11 is a schematic diagram illustrating another electric furniture according to the embodiment. FIG. 12 is a schematic perspective view illustrating the electric furniture according to the embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
The drawings are schematic or conceptual, and the relationship between the thickness and width of each portion, the size ratio between portions, and the like are not necessarily the same as the actual ones. Even when the same parts are shown, the dimensions and ratios may be different depending on the drawing.
In the present specification and each figure, the same reference numerals are given to the same elements as those described above with respect to the previous figures, and detailed description thereof will be omitted as appropriate.

(First embodiment)
FIG. 1 is a schematic perspective view illustrating the electric furniture according to the first embodiment.
As shown in FIG. 1, the electric furniture 310 according to the first embodiment is, for example, a bed. Electric furniture 310 includes bottom 71 . A mattress, which will be described later, is provided on the bottom 71 . A user of the electric furniture 310 lies on the mattress.

Electric furniture 310 is used, for example, in hospitals or nursing homes. The electric furniture 310 may be used at home, for example.

In this example, bottom 71 includes movable portion 70 . The movable portion 70 includes, for example, a back bottom 70a (back section), a knee bottom 70b (upper leg section), a leg bottom 70c (lower leg section), and a height changing portion 70h. The height changer 70h is, for example, a bed elevator. As in the example of FIG. 1, the movable portion 70 may further include a head section 70d. A plurality of portions (back bottom 70a, knee bottom 70b, leg bottom 70c, and head bottom 70d) included in the bottom 71 can change their angles relative to each other.

For example, bottom 71 is provided on frame 75 . In this example, casters 70 g are provided under the frame 75 . The casters 70g may be omitted and changed to "legs".

The electric furniture 310 is provided with a control device 160 . The control device 160 can control the movable part 70 of the electric furniture 310 and the like. The control device 160 is, for example, a remote controller (remote controller) for the electric furniture 310 . Control device 160 is, for example, a hand switch.

Control device 160 is provided with operation reception unit 20 (buttons, a touch panel, or the like). The operation reception unit 20 receives a user's operation. For example, the movable portion 70 and the like are controlled by the user's operation of the operation reception portion 20 .

Controller 160 may have various functions such as turning lights on and off, calling a nurse or caregiver, or turning power on and off.

In this example, a control circuit 43 is provided. Controller 160 is connected to control circuit 43 by cable 15 . The operation of the control circuit 43 causes the movable portion 70 to operate.

In this example, a bedside terminal 47 is provided. The bedside terminal 47 may display, for example, the state of the bed (for example, the angle and height of the bottom). The bedside terminal 47 may display the state of the user and the like.

In embodiments, a first sensor 61 and a second sensor 62 are provided. The first sensor 61 detects a state (for example, a first state and a second state) regarding the electric furniture 310 . In the first state, the electric furniture 310 is occupied by the user. In the second state, the electric furniture 310 is unoccupied. When the electric furniture 310 is a bed, the first state is the bed state. The first state includes, for example, at least one of a state in which the user is lying down, a state in which the user is sitting, and a state in which the user is standing. The first condition includes, for example, a condition in which the bed bears substantially all of the user's weight. On the other hand, the second state is, for example, the bed leaving state. In addition, a third state such as sitting on the edge may be detected. For example, the load received by the bed in the first state is greater than the load received by the bed in the third state. The load received by the bed in the second state is less than the load received by the bed in the third state.

In this example, a drive section (actuator to be described later) that drives the bottom 71 is provided. The first sensor 61 is provided in this drive section. The first sensor 61 is, for example, a load sensor.

On the other hand, the second sensor 62 detects a user's biological signal. A biomedical signal contains a user's body motion. The biological signal includes, for example, at least one of the user's breathing rate and the user's heart rate.

As shown in FIG. 1, the second sensor 62 is provided on the bottom 71 . The second sensor 62 detects, for example, the force associated with the user's breathing and heartbeat. As a result, respiratory rate, heart rate, and the like are detected. An example of the second sensor 62 will be described later.

In the embodiment, based on the first detection result obtained by the first sensor 61 and the biological signal obtained by the second sensor 62, the first detection result is in the first state (for example, the lying state). ), biometric information corresponding to at least part of the biosignal is output.

For example, it has been found that if the output of the second sensor 62 is used as biological information regardless of whether the user is lying on the bed, it may take time to obtain accurate biological information, as will be described later. rice field.

In the embodiment, biometric information is output when the first detection result is the first state (for example, lying state). As a result, more accurate biological information can be obtained. For example, accurate biological information can be obtained in a shorter time.

Such processing may be performed at any location. Processing may be performed at the second sensor 62, for example. The processing may be performed, for example, by the control circuit 43 or the like. The processing may be performed by, for example, the bedside terminal 47 or a server.

As an example, the case where the process is performed by the second sensor 62 will be described below.

FIG. 2 is a schematic diagram illustrating the electric furniture according to the first embodiment.
FIG. 2 is a block diagram of the electric furniture 310. As shown in FIG.

As shown in FIG. 2, for example, the first sensor 61 outputs a first detection result S61. In this example, the first detection result S<b>61 is supplied to the control circuit 43 . A first detection result S61 is supplied from the control circuit 43 to the second sensor 62 . The second sensor 62 includes a communication section 62c, a sensor section 62d, and a circuit section 62a. For example, the first detection result S61 is provided to the circuit section 62a via the communication section 62c. On the other hand, the biological signal S62 is detected by the sensor section 62d. The obtained biological signal S62 is supplied to the circuit section 62a.

Based on the first detection result S61 obtained by the first sensor 61 and the biological signal S62 obtained by the second sensor 62, the circuit unit 62a determines that the first detection result S61 is in the first state. Sometimes, biometric information BS0 corresponding to at least part of biosignal S62 is generated.

In this example, the biometric information BS0 is output to the outside via the communication section 62c. Output SS0 includes biometric information BS0.

Thus, in this example, the circuit section 62a, which is part of the second sensor 62, functions as the processing section 42. FIG.

As shown in FIG. 2, the circuit unit 62a (or the communication unit 62c) includes information indicating the first state (first state information SS1) and information indicating the second state (second state At least one of the information SS2) may be output. The first state information SS1 is, for example, information indicating a "lying state". The second state information SS2 is, for example, information indicating "getting out of bed". These pieces of information may be displayed, for example, on the bedside terminal 47 or a server.

Thus, in this example, the second sensor 62 outputs the biological information BS0 based on the first detection result S61 and the biological signal S62 when the first detection result S61 is in the first state.

FIG. 3 is a flow chart illustrating the operation of the electric furniture according to the first embodiment.
As shown in FIG. 3, a biological signal S62 is obtained (step S110). Furthermore, the first detection result S61 is obtained (step S120). The order of steps S110 and S120 may be reversed. These steps may be performed simultaneously. It is determined whether the first detection result S61 is in the first state (step S130). If it is in the first state, the biometric information BS0 is output (step S140). For example, information about heart rate and respiration rate is output. This information may be displayed, for example, on the bedside terminal 47 or the like. This information may be provided to a server or the like.

In step S130, if the first detection result S61 is not in the first state, for example, information indicating the second state (second state information SS2) may be output (step S135). For example, the second state information SS2 may be output when the first detection result S61 is in the second state. After step S135, for example, the process returns to before step S110.

Examples of various signals in electric furniture will be described below.
FIGS. 4A to 4D are schematic diagrams illustrating signals in the electric furniture according to the first embodiment.
The horizontal axis of these figures is time tm. The vertical axis of FIG. 4(a) is the signal intensity corresponding to the first detection result S61. The vertical axis of FIG. 4(b) is the signal intensity corresponding to the biological signal S62. The vertical axis of FIG. 4(c) is a value (for example, heart rate or respiration rate) corresponding to the biometric information BS0. The vertical axis in FIG. 4(d) corresponds to the output SS0 output from the circuit section 62a (or the communication section 62c) to the outside. The output SS0 is, for example, information corresponding to the first state information SS1 or the second state information SS2.

As shown in FIG. 4A, the first state ST1 is determined when the first detection result S61 (for example, load) is greater than the first threshold value V1. When the first detection result S61 (for example, load) is less than the second threshold value V2, the second state ST2 is determined. In addition, a third state, such as "edge sitting", may be provided in between. In this example, the user is in the first state ST1 (for example, "lying down") during the period before the first time t1.

As shown in FIG. 4B, in a period before the first time t1, the biological signal S62 is in a state (first biological state BS1) in which periodic changes are repeated. This biological signal S62 is, for example, a heartbeat. This biological signal may be respiration. A case where the biological signal S62 is a heartbeat will be described below.

As shown in FIG. 4(b), after the first time t1, the biological signal S62 abnormally changes significantly (abnormal biological state BSX). This change corresponds to the motion of the user getting up from a "lying position". Furthermore, after that, the biomedical signal S62 is in a state (second biomedical state BS2) showing a very small change. The second biological state BS2 corresponds to, for example, a state in which the user is out of bed.

As shown in FIG. 4C, the biological information BS0 is output before the first time t1 (first state ST1). For example, the heart rate in the first state ST1 is output. For example, the heart rate in the first state ST1 is output from the circuit section 62a (or the communication section 62c) as the biological information BS0.

For example, if the detection result including the abnormal biological condition BSX or the second biological condition BS2 is output as the biological information BS0, the biological information BS0 may be inaccurate.

In the embodiment, the first sensor 61 detects whether the user is in the first state ST1 or the second state ST2. Based on the detection result, the biosignal S62 obtained in the first state ST1 can be output as the biometric information BS0. This makes it possible to provide more accurate biometric information BS0.

As shown in FIG. 4D, from the circuit section 62a (or the communication section 62c), as the output SS0, the first state information SS1 (information indicating "lying down") or the second state information SS2 ( information indicating "getting out of bed") may be output.

FIGS. 5(a) to 5(d) are schematic diagrams illustrating displays in the electric furniture according to the first embodiment.
These figures show examples of display on the bedside terminal 47, for example. As shown in FIG. 5A, the user's name 81N may be displayed in the display image D1. In the display image D1, for example, the characters "50" as the heart rate and the number "10" as the respiration rate are displayed as the biological information BS0. In this example, first state information SS1 is displayed to indicate that the user is in first state ST1. In this example, the first state information SS1 is a diagram (pictogram) indicating "sleep".

As shown in FIG. 5B, the first state information SS1 may be a diagram (pictogram) indicating "awakening". A distinction between “sleep” and “awake” may be detected by the second sensor 62 .

As shown in FIG. 5(c), the third state information SS3 may be displayed when the user is in the "sitting position (or edge sitting position)" (third state). The third state information SS3 is, for example, a diagram (pictogram) indicating "sitting". The “sitting position” can be detected by the first sensor 61, for example.

As shown in FIG. 5(d), the second state information SS2 may be displayed when the user is out of bed. The second state information SS2 is a diagram (pictogram) indicating "getting out of bed". For example, when the first sensor S61 detects that the state is not the first state ST1, it may be determined that the state is the second state ST2. In this case, the second status information SS2 is displayed. For example, when the third state is detected, the second state ST2 may be determined when the state is neither the first state ST1 nor the third state.

These figures may be displayed, for example, on a display device connected to the server. In this case, for example, diagrams relating to a plurality of users may be displayed on one screen.

The embodiment may have an operation mode (bed-leaving detection mode) for detecting the user's bed-leaving from the biological signal S<b>62 obtained by the second sensor 62 . In this case, the obtained biological signal S62 includes a signal corresponding to the user's heartbeat or respiration, and a signal corresponding to vibration accompanying getting out of bed.

Even in this case, the user's getting out of bed is detected based on the first detection result S61 obtained by the first sensor 61, and based on that information, the biological information BS0 is obtained from the biological signal S62 obtained by the second sensor 62. Whether or not to output may be controlled. Thereby, more accurate biometric information BS0 is obtained.

For example, when an operation (bed-leaving detection mode) is performed to detect the user's getting out of bed from the biomedical signal S62 obtained by the second sensor 62, whether the variation occurring in the biomedical signal S62 is a variation in the heart rate, etc. It is difficult to judge whether it is a change that accompanies it. Therefore, special data processing may be performed. Therefore, it may take time to obtain the biometric information BS0 from the biosignal S62. Furthermore, it may take time to detect getting out of bed.

On the other hand, in the present embodiment, the first sensor 61 detects the first state ST1 or the second state ST2 of the user (for example, detection of getting out of bed), and the second sensor 62 detects the biological signal S62. . By using two sensors, it is possible to shorten the time until the biological information BS0 is output. In the embodiment, the time required to detect getting out of bed can be shortened.

An example in which the above processing is performed by the processing circuit 43 will be described below.
FIG. 6 is a schematic diagram illustrating the electric furniture according to the first embodiment.
As shown in FIG. 6, in the electric furniture 311 according to the embodiment, the first detection result S61 is supplied from the first sensor 61 to the control circuit 43, for example. On the other hand, the biological signal S62 is detected by the sensor section 62d. The obtained biological signal S62 is supplied to the circuit section 62a. The biological signal S62 processed by the circuit section 62a is supplied to the control circuit 43 via the communication section 62c. Based on the first detection result S61 obtained by the first sensor 61 and the biological signal S62 obtained by the second sensor 62, the control circuit 43 determines whether the first detection result S61 is in the above-described first state ST1. At some point, biometric information BS0 corresponding to at least part of biosignal S62 is generated.

In this example, the control circuit 43 functions as the processing section 42 .

As shown in FIG. 6, the control circuit 43 controls at least one of information indicating the first state (first state information SS1) and information indicating the second state (second state information SS2). You can also output These information may be displayed, for example, on the bedside terminal 47 or a server.

Thus, the electric furniture 311 according to the embodiment may further include the processing section 42 . The processing unit 42 is, for example, the control circuit 43 . The processing unit 42 obtains the first detection result S61 and the biological signal S62, and outputs the biological information BS0 when the first detection result S61 is in the first state ST1.

FIG. 7 is a schematic diagram illustrating the electric furniture according to the first embodiment.
As shown in FIG. 7, the electric furniture 312 is provided with first to third actuators 72a to 72c. The first actuator 72a corresponds to, for example, the height changer 70h (see FIG. 1). The second actuator 72b changes the angle of the back bottom 70a, for example. The third actuator 72c changes the angle of the knee bottom 70b, for example.

A control circuit 43 supplies control signals to these actuators for their operation.

In this example, as the first sensor 61, a first load sensor 61a is provided. The first load sensor 61a is provided on the first actuator 72a. In the embodiment, as the first sensor 61, a second load sensor 61b may be provided. The second load sensor 61b is provided on the second actuator 72b. In the embodiment, as the first sensor 61, a third load sensor 61c may be provided. The third load sensor 61c is provided on the third actuator 72c. In the embodiment, the first load sensor 61a may be provided as the first sensor 61 and no other load sensor may be provided.

Thus, the first sensor 61 may detect the first state ST1 or the second state ST2 based on the change in the load that the bottom 71 receives. For example, the first sensor 61 may be provided in a drive section (for example, an actuator) that drives the bottom 71 . The device can be made smaller. For example, an increase in the number of parts can be suppressed.

Signals obtained by these load sensors are supplied to the control circuit 43, for example.

A communication network 46 is provided in the electric furniture 312 . Wired and/or wireless communication is possible in the communication network 46 . One port of communication network 46 is connected to control circuit 43 . Another port of communication network 46 is connected to second sensor 62 . Another port of the communication network 46 may be connected to the bedside terminal 47 . Another port of communication network 46 may be connected to communication device 45 . The communication device 45 is connected to a server 49 or the like.

For example, at least one of the biometric information BS0, the first state information SS1, and the second state information SS2 may be supplied to at least one of the bedside terminal 47, the communication device 45, and the server 49.

Several examples of the second sensor 62 are described below.

FIGS. 8A and 8B are schematic diagrams illustrating the electric furniture according to the embodiment.
FIG. 8A is a schematic perspective view illustrating the second sensor 62 and the arrangement of the second sensor 62. FIG. FIG. 8B is a schematic plan view illustrating the second sensor 62. FIG. In FIG. 8(a), the components are drawn apart from each other for clarity of illustration.

As shown in FIG. 8A, in the electric furniture 340, a bottom 71 is provided on the bed leg portion 74 of the bed portion 70B. A mattress 76 is provided on the bottom 71 . A user 81 lies on the mattress 76 . A second sensor 62 is provided between the bottom 71 and the mattress 76 . In this example, the second sensor 62 is sheet-like or plate-like.

As shown in FIG. 8B, the second sensor 62 includes a circuit section 62a and a sensor section 62b. The circuit portion 62a includes a communication portion 62c. The communication unit 62c transmits and receives data to and from the control circuit 43 . Transmission and reception may be by any method including wired and/or wireless.

The sensor portion 62b includes, for example, a sensor component 62d. The sensor section 62b detects a force (or a characteristic corresponding to the force) that the sensor section 62b receives. Forces include, for example, pressure and/or sound waves. The sensor section 62b includes, for example, a pressure sensor. The sensor unit 62b includes, for example, a microphone.

A force (at least one of pressure and sound waves) by the user 81 is applied to the sensor section 62b via the mattress 76 . For example, a signal based on the force detected by the sensor section 62b is output from the circuit section 62a. The output signal is supplied to the control circuit 43 . In the control circuit 43, the state of the user 81 (getting out of bed, sleeping, awakening, etc.) is estimated based on at least one of the magnitude of the signal (force) and the temporal change in the magnitude of the signal (force). be. Alternatively, in the circuit section 62a, the state of the user 81 (getting out of bed, sleeping, or waking) may be estimated based on at least one of the force detected by the sensor section 62b and the temporal change in the force. . The state of the user 81 may include getting up, preparing to get out of bed (for example, sitting on the edge), getting out of bed, falling asleep, sleeping, or waking up.

Further, in at least one of the control circuit 43 and the circuit section 62a, the biological signal of the user is detected based on at least one of the magnitude of the signal (force) and the temporal change in the magnitude of the signal (force). be done. The biological signal includes at least one of the user's breathing rate and heart rate. A state of sleep may be estimated based on the biosignal. The user's posture while sleeping may be estimated based on the biosignals.

For example, vibration corresponding to the state of the user 81 is applied to the sensor section 62b. The vibration corresponds to the body motion of the user 81, for example. Vibrations are detected at the sensor portion 62b. Vibration may include sound.

For example, a vibration detection means (sensor section 62b) and a processing section (at least part of at least one of the circuit section 62a and the control circuit 43) are provided. The processing unit includes, for example, a computer. The vibration detection means detects, for example, the vibration of the sleeping person (user 81) on the bedding (bed portion 70B).

The processing unit includes, for example, activity amount calculation means, sleep determination value calculation means, and sleep state determination means. These means are functionally separated. The activity amount calculation means calculates the activity amount of the sleeping person for each sampling unit time, for example, based on the vibration detected by the vibration detection means. The sleep determination value calculation means weights, for example, the amount of activity at a first time (for example, the current time) and the amount of activity calculated at a second time (for example, a time before the current time) according to time. The sum of the values multiplied by the correction coefficients may be calculated as the sleep determination value. For example, the sleep state determining means may determine that the user is in an awake state when the sleep determination value exceeds a predetermined threshold, and otherwise determine that the user is in a sleeping state.

9(a) to 9(d) are schematic diagrams illustrating another electric furniture according to the embodiment.
FIG. 9A is a cross-sectional view of an example of the second sensor 62. FIG. FIG. 9B is a plan view of an example of the second sensor 62. FIG. FIG. 9C is a perspective view illustrating the arrangement of the second sensor 62. FIG. FIG. 9D is a side view illustrating the arrangement of the second sensor 62. FIG.

As shown in FIG. 9A, in this example, the second sensor 62 includes a first plate 62p and a second plate 62q. The second plate 62q faces the first plate 62p. These plates may be sheet-like.

The second plate 62q includes support protrusions 62s. 62 s of support protrusions oppose the outer edge part of the 1st plate 62p. The first plate 62p includes an inner portion inside the outer edge. An air container 62r is provided between the inner portion and the second plate 62q. In this example, a groove 62t is provided in the second plate 62q. An air container 62r is provided in a space (divided space) formed by the groove 62t. One end of the signal line 62u is connected to the air container 62r. The other end of the signal line 62u is connected to a detection circuit 62v (detection device).

As shown in FIG. 9(b), the support protrusion 62s faces part of the outer edge of the first plate 62p. In this example, the support protrusions 62s are provided at four corners of the first plate 62p. The sensor 62 is sheet-like or plate-like.

As shown in FIG. 9(c), the second sensor 62 is placed on the bottom 71. As shown in FIG.

As shown in FIG. 9(d), the second sensor 62 is placed on the bottom 71, and the mattress 76 is placed thereon. A user 81 lies on the mattress 76 .

For example, force according to the movement of the body of the user 81 is applied to the air container 62r. This force includes, for example, vibration. A force (or characteristic corresponding to the force) applied to the air container 62r is detected by the detection circuit 62v. For example, the air container 62r is provided with a pressure detector, and a signal (detection result) obtained by the pressure detector is supplied to the detection circuit 62v. For example, the air container 62r is provided with a microphone, and a signal (detection result) obtained by the microphone is supplied to the detection circuit 62v. For example, the output (signal) of the detection circuit 62 v is supplied to the control circuit 43 . The control circuit 43 estimates the state of the user 81 (getting out of bed, sleeping, awake, or the like). Alternatively, the detection circuit 62v may estimate the state of the user 81 (getting out of bed, sleeping, wakefulness, etc.) based on at least one of the detected force and temporal change in the force. The state of the user 81 may include sitting up, sitting on the edge (for example, preparing to get out of bed), getting out of bed, falling asleep, sleeping, or waking up.

The second sensor 62 is, for example, a biological information collecting device. In the second sensor 62, the first plate 62p is arranged on the body side of the user 81, for example. The second plate 62q is provided, for example, on the support side. A deformable air container 62r for air pressure detection is provided between the central portions of the first plate 62p and the second plate 62q. A groove 62t for mounting the air container 62r is provided in the central portion of the second plate 62q. 62 s of support protrusions protrude in the direction which goes to the 1st plate 62p from the 2nd plate 62q. The support protrusions 62s support the four corners around the first plate 62p. 62 s of support protrusions always support the 1st plate 62p in a horizontal state (normal state), for example.

In embodiments, the second sensor 62 can be modified in various ways.

FIG. 10 is a schematic diagram illustrating another electric furniture according to the embodiment.
As shown in FIG. 10, the electric furniture 350 is provided with a load sensor 61F as the first sensor 61. As shown in FIG. The load sensor 61F is provided, for example, above the casters 70g of the bed. Also in this case, the load sensor 61F can detect the first state ST1 or the second state ST2 of the user 81. FIG.

Accordingly, an image sensor 61G may be provided as the first sensor 61, as shown in FIG. A first state ST1 or a second state ST2 of the user 81 can be detected. In addition, an infrared sensor or the like may be provided as the first sensor 61 .

FIG. 11 is a schematic diagram illustrating another electric furniture according to the embodiment.
As shown in FIG. 11, the electric furniture 351 is provided with a load sensor 61H as the first sensor 61. As shown in FIG. The load sensor 61H is, for example, sheet-shaped. The load sensor 61H is placed, for example, on the floor near the bed. For example, when the user 81 of the bed gets up from the bed and tries to leave the bed, the user 81 steps on the load sensor 61H. This force is detected by the load sensor 61H. Based on the signal based on the load detected by the load sensor 61H, the first state ST1 (the user 81 is on the electric furniture) or the second state ST2 (the user 81 is not on the electric furniture). ) can be detected.

As shown in FIG. 11 , load sensors 61J and 61K may be provided as the first sensor 61 in the electric furniture 351 . The load sensors 61J and 61K are provided, for example, on the rails 75L (side rails, etc.) of the bed. The load sensors 61J and 61K and the like may be provided on the frame 75 and the like. The load sensors 61J and 61K may be provided on handrails or the like. For example, when the user 81 of the bed gets up from the bed and tries to leave the bed, there is a case where the rail 75L, the frame 75 or various handrails are touched (when supporting the body) in order to support the body. The first state ST1 or the second state ST2 of the user 81 can be detected by detecting the load of the body of the user 81 with the load sensors 61J and 61K.

In the electric furniture 351, the first detection result S61 (see FIG. 2) detects at least the first state and the second state. The first state is, for example, a state in which the first sensors 61 (load sensors 61H, 61J, 61K, etc.) do not detect any load. The second state is, for example, a state when the first sensors 61 (load sensors 61H, 61J, 61K, etc.) detect loads.
The first state corresponds to, for example, the state where the user 81 is in the electric furniture. A second state corresponds to a state in which there is no user 81 in the furniture.

In the electric furniture 351 as well, the first detection result S61 obtained by the first sensor 61 and the biological signal S62 obtained by the second sensor 62 are in the first state, the biological signal S62 biometric information BS0 corresponding to at least a part of is output.

FIG. 12 is a schematic perspective view illustrating the electric furniture according to the embodiment.
As shown in FIG. 12, the electric furniture 360 is an electric chair. The electric furniture 330 includes a backrest portion 70p and a seat surface portion 70q. The backrest portion 70p corresponds to the bottom portion whose angle can be changed. The seat surface portion 70q corresponds to the height changing portion. The angle of the seat surface portion 70q may be changeable. For example, the leg of the electric furniture 360 is provided with the load sensor 61F. A second sensor 62 is provided on the backrest portion 70p.

According to the embodiment, it is possible to provide electric furniture capable of detecting biometric information more accurately.

The embodiments of the present invention have been described above with reference to specific examples. However, the invention is not limited to these specific examples. For example, with respect to the specific configuration of each element such as a sensor, a processing unit, a processing circuit, a movable unit, a bottom, and a mattress included in the electric furniture, the present invention can be similarly applied by those skilled in the art by appropriately selecting from the known range. As long as it can be implemented and the same effect can be obtained, it is included in the scope of the present invention.

Any combination of two or more elements of each specific example within the technically possible range is also included in the scope of the present invention as long as it includes the gist of the present invention.

In addition, based on the electric furniture described above as an embodiment of the present invention, all electric furniture that a person skilled in the art can implement by appropriately modifying the design also belongs to the scope of the present invention as long as it includes the gist of the present invention.

In addition, within the scope of the idea of the present invention, those skilled in the art can conceive of various modifications and modifications, and it is understood that these modifications and modifications also belong to the scope of the present invention. .

DESCRIPTION OF SYMBOLS 15... Cable 20... Operation reception part 42... Processing part 43... Control circuit 45... Communication apparatus 46... Communication network 47... Bedside terminal 49... Server 61... First sensor 61F... Load sensor 61G...Image sensor 61H, 61J, 61K...Load sensor 61a to 61c...First to third load sensors 62...Second sensor 62a...Circuit section 62b...Sensor section 62c...Communication section 62d... Sensor parts 62p First plate 62q Second plate 62r Air container 62s Supporting protrusion 62t Groove 62u Signal line 62v Detection circuit 70 Movable part 70B Bed Part 70a Back bottom 70b Knee bottom 70c Leg bottom 70d Head bottom 70g Caster 70h Height changing part 70p Backrest 70q Seat 71 Bottom 72a to 72c ... first to third actuators 74 ... bed legs 75 ... frame 76 ... mattress 81 ... user 81N ... name 160 ... control device 310, 311, 312, 330, 340, 350, 351 , 360... electric furniture, BS0... biological information, BS1, BS2... first and second biological conditions, BSX... abnormal biological condition, D1... display image, S61... first detection result, S62... biological signal, SS0... output, SS1 First state information SS2 Second state information SS3 Third state information V1, V2 First and second threshold values t1 First time tm Time

Claims (15)

a first detection result obtained by a first sensor that detects at least a first state in which a user is present on the electric furniture and a second state in which the user is not present on the electric furniture;
and a biological signal including the body movement of the user obtained by a second sensor placed on the electric furniture,
The processing unit provided in the second sensor,
Electric furniture that outputs information corresponding to at least part of the biosignal when the first detection result is the first state. The electric furniture according to claim 1, wherein when the first detection result is the second state, information indicating the second state is output. a first detection result obtained by a first sensor that detects at least a first state in which a user is present on the electric furniture and a second state in which the user is not present on the electric furniture;
and a biological signal including the body movement of the user obtained by a second sensor placed on the electric furniture,
The processing unit provided in the second sensor,
Electric furniture for outputting information indicating the second state when the first detection result is the second state. The processing unit provided in the second sensor,
4. The electric furniture according to claim 3, wherein information corresponding to at least part of the biosignal is output when the first detection result is the first state. a first detection result obtained by a first sensor that detects at least a first state in which a user is present on the electric furniture and a second state in which the user is not present on the electric furniture;
and a biological signal including the body movement of the user obtained by a second sensor placed on the electric furniture,
The processing unit provided in the second sensor,
Information corresponding to at least part of the biosignal when the first detection result is the first state or the second state when the first detection result is the second state Motorized furniture that outputs either indicating information. The electric furniture includes a bottom,
the second sensor is placed on the bottom;
Electric furniture according to any one of claims 1 to 5. The first sensor detects the first state or the second state based on a change in the load received by the bottom.
Electric furniture according to claim 6. The first sensor is provided in a drive unit that drives the bottom,
Electric furniture according to claim 6 or 7. further comprising a first actuator;
The first actuator changes the height of the bottom,
The first sensor includes a first load sensor provided on the first actuator,
Electric furniture according to any one of claims 6 to 8. further comprising a second actuator;
The second actuator changes the slope of the bottom,
The first sensor includes a second load sensor provided on the second actuator,
Electric furniture according to any one of claims 6 to 9. further comprising the first sensor;
Electric furniture according to any one of claims 1 to 10. further comprising the second sensor;
Electric furniture according to any one of claims 1 to 11. the biological signal includes at least one of the user's respiratory rate and heart rate;
Electric furniture according to any one of claims 1 to 12. the electric furniture is a bed,
The second sensor has an operation mode for detecting the user's getting out of bed from the body movement of the user.
Electric furniture according to any one of claims 1 to 13. The second sensor is capable of detecting the sleep state of the user from the body movement of the user.
Electric furniture according to any one of claims 1 to 14.

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