JP2024026845A - Motor-driven furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide motor-driven furniture capable of correctly detecting biological information.

SOLUTION: In motor-driven furniture, a processing section arranged in a second sensor outputs either of information corresponding to at least a part of a biological signal when a first detection result is in a first state or information indicating that it is in a second state when the first detection result is the second state on the basis of the first detection result obtained by a first sensor which detects at least the first state where a user exists on the motor-driven furniture and the second state where the user does not exist on the motor-driven furniture, and the biological signal obtained by the second sensor placed in the motor-driven furniture and provided at a place different from the first sensor, and includes a body motion of the user.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

Embodiments of the present invention relate to electric furniture.

For example, there is a technology that detects biological information of a user of electric furniture based on fluctuations in air pressure within an air container. It is desired to detect biological information more accurately.

JP2009-82585A

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

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 the user is present in the electric furniture and a second state in which the user is not present in the electric furniture. the second sensor based on the detection result and a biological signal including body movements of the user obtained by a second sensor placed on the electric furniture and installed at a different location from the first sensor; The processing unit provided in the processing unit generates information corresponding to at least a part of the biological signal when the first detection result is in the first state, or when the first detection result is in the second state. The information indicating the second state is output.

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

FIG. 1 is a schematic perspective view illustrating electric furniture according to a first embodiment. FIG. 2 is a schematic diagram illustrating the electric furniture according to the first embodiment. FIG. 3 is a flowchart illustrating the operation of the electric furniture according to the first embodiment. FIGS. 4(a) to 4(d) 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 on 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. 8(a) and 8(b) are schematic diagrams illustrating electric furniture according to the embodiment. FIGS. 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.

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 part, the size ratio between parts, etc. are not necessarily the same as the reality. Even when the same part is shown, the dimensions and ratios may be shown differently depending on the drawing.
In the specification of this application and each figure, the same elements as those described above with respect to the existing figures are given the same reference numerals, and detailed explanations are omitted as appropriate.

(First embodiment)
FIG. 1 is a schematic perspective view illustrating electric furniture according to a 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 a 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.

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

In this example, bottom 71 includes movable portion 70 . The movable part 70 includes, for example, a back bottom 70a (back section), a knee bottom 70b (upper leg section), a leg bottom 70c (lower leg section), a height changing part 70h, and the like. The height changing unit 70h is, for example, a bed elevator. As in the example of FIG. 1, the movable part 70 may further include a head section 70d. The mutual angles of a plurality of parts included in the bottom 71 (back bottom 70a, knee bottom 70b, leg bottom 70c, and head bottom 70d) can be changed.

For example, the bottom 71 is provided on the frame 75. In this example, casters 70g are provided below the frame 75. The casters 70g may be omitted and replaced with "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 for the electric furniture 310. The control device 160 is, for example, a hand switch.

The control device 160 is provided with an operation reception section 20 (buttons, touch panel, etc.). The operation accepting unit 20 accepts user's operations. For example, the movable portion 70 is controlled by the user operating the operation receiving unit 20.

The control device 160 may have various functions such as turning on/off lighting, calling a nurse or caregiver, or turning on/off power.

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

In this example, a bedside terminal 47 is provided. The bedside terminal 47 may display, for example, the state of the bed (eg, the bottom angle and height). The user's condition and the like may be displayed on the bedside terminal 47.

In the embodiment, a first sensor 61 and a second sensor 62 are provided. The first sensor 61 detects a state regarding the electric furniture 310 (for example, a first state and a second state). In the first state, there is a user in the electric furniture 310. In the second state, there is no user in the electric furniture 310. When the electric furniture 310 is a bed, the first state is a state where the user is in bed. 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 sitting up. The first state includes, for example, a state in which the bed bears substantially all of the user's weight. On the other hand, the second state is, for example, a state where the user is out of bed. In addition to this, a third state such as an edge sitting position may be detected. For example, the load that the bed receives in the first state is greater than the load that the bed receives in the third state. The load that the bed receives in the second state is smaller than the load that the bed receives in the third state.

In this example, a drive unit (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 biosignals of the user. The biosignal includes the user's body movement. 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, the respiratory rate, heart rate, etc. 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 determined to be in a first state (for example, a lying state). ), biological information corresponding to at least a portion of the biological signal 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 in bed, it may take time to obtain accurate biological information, as will be described later. Ta.

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

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

Hereinafter, as one example, a case where the process is performed by the second sensor 62 will be described.

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. 2, for example, the first sensor 61 outputs a first detection result S61. In this example, the first detection result S61 is supplied to the control circuit 43. The 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 sensor section 62d detects the biological signal S62. The obtained biological signal S62 is supplied to the circuit section 62a.

The circuit unit 62a determines that the first detection result S61 is in the above first state based on the first detection result S61 obtained by the first sensor 61 and the biological signal S62 obtained by the second sensor 62. At times, biological information BS0 corresponding to at least a portion of the biological signal S62 is generated.

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

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

As shown in FIG. 2, the circuit section 62a (or the communication section 62c) receives information indicating that it is in the first state (first state information SS1) and information indicating that it is in the second state (second state information SS1). 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 "get out of bed." This information may be displayed on the bedside terminal 47 or the server, for example.

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 flowchart 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 step S110 and step 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 the first state, biological information BS0 is output (step S140). For example, information regarding heart rate, breathing rate, etc. is output. This information may be displayed on the bedside terminal 47, for example. This information may be provided to a server or the like.

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

Examples of various signals in electric furniture will be described below.
FIGS. 4(a) to 4(d) 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 in FIG. 4(a) is the signal strength corresponding to the first detection result S61. The vertical axis in FIG. 4(b) is the signal intensity corresponding to the biological signal S62. The vertical axis in FIG. 4(c) is a value (for example, heart rate or respiratory rate) corresponding to the biological 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. 4(a), when the first detection result S61 (for example, load) is larger than the first threshold value V1, the first state ST1 is determined. 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 an "edge sitting position" between these may be provided. In this example, the user is in a first state ST1 (eg, "lying down" state) during a period before the first time t1.

As shown in FIG. 4(b), in a period before the first time t1, the biological signal S62 is in a state of repeating periodic changes (first biological state BS1). This biological signal S62 is, for example, a heartbeat. This biological signal may be breathing. Below, a case where the biological signal S62 is a heartbeat will be described.

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 movement of the user getting up from a "lying down" position. Furthermore, after that, the biological signal S62 becomes a state (second biological 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. 4(c), 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 a detection result including the above abnormal biological state BSX or second biological state BS2 is output as biological information BS0, the biological information BS0 may be inaccurate.

In the embodiment, the user uses the first sensor 61 to detect whether the first state ST1 is the second state ST2. Based on the detection result, the obtained biological signal S62 can be output as biological information BS0 when in the first state ST1. Thereby, more accurate biological information BS0 can be provided.

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

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

As shown in FIG. 5(b), the first state information SS1 may be a diagram (pictogram) indicating "awakening". The 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's state is “sitting position (or edge sitting position)” (third state). The third state information SS3 is, for example, a diagram (pictogram) showing "sitting position". The "sitting position" can be detected by the first sensor 61, for example.

As shown in FIG. 5(d), the second status information SS2 may be displayed when the user is out of bed. The second state information SS2 is a diagram (pictogram) showing "get 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, 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 diagrams may be displayed on a display device connected to the server, for example. In this case, for example, diagrams related to multiple users may be displayed on one screen.

In the embodiment, there may be an operation mode (bed leaving detection mode) in which the user leaves the bed based on the biological signal S62 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 vibrations associated with leaving the bed.

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

For example, when performing an operation to detect when the user leaves the bed based on the biosignal S62 obtained by the second sensor 62 (bed-leaving detection mode), it is difficult to determine whether the fluctuations occurring in the biosignal S62 are due to variations in heart rate, etc. It is difficult to judge whether this is a related change or not. For this reason, special data processing may be performed. Therefore, it may take some time to obtain the biological information BS0 from the biological signal S62. Furthermore, it may take time to detect leaving the bed.

In contrast, in the present embodiment, the first sensor 61 detects the first state ST1 or the second state ST2 of the user (for example, detects leaving the bed), and the second sensor 62 detects the biosignal S62. . By using two sensors, the time required to output the biological information BS0 can be shortened. In embodiments, the time required to detect bed leaving can be reduced.

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, for example, a first detection result S61 is supplied from the first sensor 61 to the control circuit 43. On the other hand, the sensor section 62d detects the biological signal S62. 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. The control circuit 43 determines whether the first detection result S61 is in the first state ST1 based on the first detection result S61 obtained by the first sensor 61 and the biological signal S62 obtained by the second sensor 62. At a certain time, biological information BS0 corresponding to at least a part of the biological signal 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 the information indicating that the device is in the first state (first state information SS1) and the information indicating that it is in the second state (second state information SS2). You can also output This information may be displayed on, for example, the bedside terminal 47 or the server.

In this way, the electric furniture 311 according to the embodiment may further include the processing section 42. The processing unit 42 is, for example, a 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 changing section 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.

The control circuit 43 supplies these actuators with control signals for their operation.

In this example, a first load sensor 61a is provided as the first sensor 61. The first load sensor 61a is provided on the first actuator 72a. In the embodiment, a second load sensor 61b may be provided as the first sensor 61. The second load sensor 61b is provided on the second actuator 72b. In the embodiment, a third load sensor 61c may be provided as the first sensor 61. The third load sensor 61c is provided on the third actuator 72c. In the embodiment, the first load sensor 61a is provided as the first sensor 61, and other load sensors may not be provided.

In this way, the first sensor 61 may detect the first state ST1 or the second state ST2 based on a change in the load that the bottom 71 receives. For example, the first sensor 61 may be provided in a drive unit (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.

In the motorized furniture 312, a communication network 46 is provided. In the communication network 46, wired and/or wireless communication is possible. 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 communication network 46 may be connected to 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 and the like.

For example, at least one of the biological 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.

Some examples of the second sensor 62 will be described below.

FIGS. 8(a) and 8(b) are schematic diagrams illustrating 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. 8(b) is a schematic plan view illustrating the second sensor 62. In FIG. 8(a), components are drawn separated from each other to make the diagram easier to read.

As shown in FIG. 8(a), 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. The second sensor 62 is provided between the bottom 71 and the mattress 76. In this example, the second sensor 62 is sheet-shaped or plate-shaped.

As shown in FIG. 8(b), the second sensor 62 includes a circuit section 62a and a sensor section 62b. The circuit section 62a includes a communication section 62c. The communication unit 62c transmits and receives data to and from the control circuit 43. Transmission and reception are performed by any method including at least one of wired and wireless.

The sensor section 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. The force includes, for example, pressure and/or sound waves. The sensor section 62b includes, for example, a pressure sensor. The sensor section 62b includes, for example, a microphone.

Force (at least one of pressure and sound waves) by the user 81 is applied to the sensor portion 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, awake, 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). Ru. Alternatively, the state of the user 81 (getting out of bed, sleeping, awake, etc.) may be estimated in the circuit section 62a based on at least one of the force and the temporal change in force detected by the sensor section 62b. . The state of the user 81 may include getting up, getting ready 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, a 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. The state of sleep may be estimated based on biological signals. The user's posture while sleeping may be estimated based on the biosignal.

For example, vibrations depending on the state of the user 81 are applied to the sensor section 62b. The vibrations correspond to the body movements of the user 81, for example. Vibrations are detected by the sensor section 62b. The vibration may include sound.

For example, a vibration detection means (sensor section 62b) and a processing section (at least a 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, vibrations of the sleeping person (user 81) on the bedding (bed portion 70B).

The processing unit includes, for example, an activity amount calculation means, a sleep determination value calculation means, and a 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 judgment value calculation means weights, for example, the amount of activity at a first time (e.g., the current time) and the amount of activity calculated at a second time (e.g., a time before the current time) according to time. The total sum of values multiplied by the corrected correction coefficient may be calculated as the sleep determination value. For example, the sleep state determination means may determine that the person is in the awake state when the sleep determination value exceeds a predetermined threshold value, and may determine that the person is in the sleep state in other cases.

FIGS. 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. 9(b) is a plan view of an example of the second sensor 62. FIG. 9C is a perspective view illustrating the arrangement of the second sensor 62. FIG. 9(d) is a side view illustrating the arrangement of the second sensor 62.

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 in sheet form.

The second plate body 62q includes a support protrusion 62s. The support protrusion 62s faces the outer edge of the first plate 62p. The first plate body 62p includes an inner portion inside the outer edge portion. An air container 62r is provided between the inner part and the second plate body 62q. In this example, a groove 62t is provided in the second plate 62q. An air container 62r is provided in the space (divided space) formed by the groove 62t. One end of a 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 a part of the outer edge of the first plate body 62p. In this example, the support protrusions 62s are provided at four corners of the first plate 62p. The sensor 62 is sheet-shaped or plate-shaped.

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

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

For example, a force corresponding to the movement of the user's 81 body is applied to the air container 62r. This force includes, for example, vibration. The force (or the characteristic corresponding to the force) applied to the air container 62r is detected by the detection circuit 62v. For example, a pressure detector is provided in the air container 62r, and a signal (detection result) obtained by the pressure detector is supplied to the detection circuit 62v. For example, a microphone is provided in the air container 62r, 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 62v is supplied to the control circuit 43. In the control circuit 43, the state of the user 81 (getting out of bed, sleeping, awake, etc.) is estimated. Alternatively, the state of the user 81 (getting out of bed, sleeping, awake, etc.) may be estimated in the detection circuit 62v based on at least one of the detected force and the temporal change in the force. The state of the user 81 may include sitting up, sitting up (for example, ready 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 placed, for example, on the user's 81's body side. The second plate body 62q is provided, for example, on the support side. A deformable air container 62r for detecting air pressure is provided between the center portions of the first plate 62p and the second plate 62q. A groove 62t into which the air container 62r is mounted is provided in the center of the second plate 62q. The support protrusion 62s protrudes from the second plate 62q toward the first plate 62p. The support protrusions 62s support the four corners around the first plate body 62p. The support protrusion 62s, for example, always supports the first plate body 62p in a horizontal state (normal state).

In the embodiment, 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, in the electric furniture 350, a load sensor 61F is provided as the first sensor 61. The load sensor 61F is provided, for example, above the casters 70g of the bed. In this case as well, the load sensor 61F can detect the first state ST1 or the second state ST2 of the user 81.

Accordingly, as shown in FIG. 10, an image sensor 61G may be provided as the first sensor 61. The first state ST1 or the 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, in the electric furniture 351, a load sensor 61H is provided as the first sensor 61. 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 bed user 81 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 a signal based on the load detected by the load sensor 61H, the user 81 is placed in a first state ST1 (a state where the user 81 is in the electric furniture) or a second state ST2 (a state in which the user 81 is not in 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 bed rail 75L (side rail, etc.). The load sensors 61J and 61K may be provided on the frame 75 or the like. The load sensors 61J, 61K, etc. may be attached to a handrail or the like. For example, when the bed user 81 gets up from the bed and tries to leave the bed, there are cases where the user touches the rail 75L, the frame 75, or various handrails to support the body (in case of supporting the body). By detecting the load due to the body of the user 81 using the load sensors 61J and 61K, the first state ST1 or the second state ST2 of the user 81 can be detected.

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 sensor 61 (load sensors 61H, 61J, 61K, etc.) does not detect a load. The second state is, for example, a state when the first sensor 61 (load sensors 61H, 61J, and 61K, etc.) detects a load.
The first state corresponds to, for example, a state where the user 81 is present in the electric furniture. The second state corresponds to a state where the user 81 is not present in the furniture.

Also in the electric furniture 351, when the first detection result S61 obtained by the first sensor 61, the biosignal S62 obtained by the second sensor 62, and the first detection result S61 are in the first state, the biosignal 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, electric furniture 360 is an electric chair. Electric furniture 330 includes a backrest portion 70p and a seat portion 70q. The backrest portion 70p corresponds to a bottom portion whose angle can be changed. The seat portion 70q corresponds to a height changing portion. The angle of the seat portion 70q may be changeable. For example, the load sensor 61F is provided on the leg of the electric furniture 360. A second sensor 62 is provided on the backrest portion 70p.

According to the embodiment, electric furniture that can detect biological information more accurately can be provided.

The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. For example, regarding the specific configuration of each element included in the electric furniture, such as a sensor, a processing unit, a processing circuit, a movable unit, a bottom, and a mattress, a person skilled in the art can appropriately select from a known range and the present invention can be similarly implemented. As long as it can be carried out and similar effects can be obtained, it is included within the scope of the present invention.

Combinations of any two or more elements of each specific example to the extent technically possible are also included within the scope of the present invention as long as they encompass the gist of the present invention.

In addition, all electric furniture that can be implemented by appropriately changing the design based on the electric furniture described above as an embodiment of the present invention by those skilled in the art also belong to the scope of the present invention as long as they include the gist of the present invention.

In addition, it is understood that various changes and modifications can be made by those skilled in the art within the scope of the idea of the present invention, and these changes and modifications also fall within the scope of the present invention. .

15... Cable, 20... Operation reception unit, 42... Processing unit, 43... Control circuit, 45... Communication equipment, 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 sensor, 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...support projection, 62t...groove, 62u...signal line, 62v...detection circuit, 70...movable part, 70B...bed 70a...Back bottom, 70b...Knee bottom, 70c...Leg bottom, 70d...Head bottom, 70g...Casters, 70h...Height changing part, 70p...Backrest part, 70q...Seat surface part, 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 thresholds, t1...first time, tm...time

Claims (6)

a first detection result obtained by a first sensor that detects at least a first state in which there is a user in the electric furniture and a second state in which the user is not in the electric furniture;
Based on a biological signal including body movements of the user obtained by a second sensor placed on the electric furniture and installed at a location different from the first sensor,
The processing section provided in the second sensor includes:
information corresponding to at least a part of the biological signal when the first detection result is the first state, or the second state when the first detection result is the second state. Electric furniture that outputs either information indicating that. The electric furniture includes a bottom;
the second sensor is placed on the bottom;
The electric furniture according to claim 1, wherein the first sensor is provided on a caster of the electric furniture. The electric furniture includes a bottom;
the second sensor is placed on the bottom;
The electric furniture according to claim 1, wherein the first sensor is an image sensor. The electric furniture includes a bottom;
the second sensor is placed on the bottom;
The electric furniture according to claim 1, wherein the first sensor is a sheet-type sensor that can be placed on the floor near the electric furniture. The biological signal includes at least one of the user's breathing rate and heart rate.
The electric furniture according to any one of claims 1 to 4. The electric furniture is a bed,
The second sensor has an operation mode in which the user leaves the bed based on the body movement of the user.
Electric furniture according to any one of claims 1 to 5.

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