JP2019170798A - Motor-driven furniture - Google Patents

Abstract

To provide motor-driven furniture capable of correctly detecting biological information.SOLUTION: A first sensor detects at least a first state where a user exists on motor-driven furniture and a second state where a user does not exist on the motor-driven furniture. The motor-driven furniture outputs biological information at least partially corresponding to a biological signal including a body motion of a user when the first detection result indicates a first state, on the basis of a first detection result obtained by the first sensor and a biological signal obtained by a second sensor arranged in the motor-drive furniture.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to electric furniture.

  For example, there is a technique for detecting biometric information of a user of an electric furniture based on a change in air pressure in the 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 detect biological information more accurately.

  According to the embodiment, the electric furniture is 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. When the first detection result is in 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 in the electric furniture, Biological information corresponding to at least a part of the biological signal is output.

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

FIG. 1 is a schematic perspective view illustrating the electric furniture according to the first embodiment. FIG. 2 is a schematic view 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. FIG. 4A to FIG. 4D are schematic views illustrating signals in the electric furniture according to the first embodiment. FIG. 5A to FIG. 5D are schematic views illustrating display in the electric furniture according to the first embodiment. FIG. 6 is a schematic view illustrating the electric furniture according to the first embodiment. FIG. 7 is a schematic view illustrating the electric furniture according to the first embodiment. FIG. 8A and FIG. 8B are schematic views illustrating the electric furniture according to the embodiment. FIG. 9A to FIG. 9D are schematic views illustrating another electric furniture according to the embodiment. FIG. 10 is a schematic view illustrating another electric furniture according to the embodiment. FIG. 11 is a schematic view 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 the parts, and the like are not necessarily the same as actual ones. Even in the case of representing the same part, the dimensions and ratios may be represented differently depending on the drawings.
In the present specification and drawings, the same elements as those described above with reference to the previous drawings are denoted by the same reference numerals, and detailed description thereof is 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. The electric furniture 310 includes a bottom 71. A mattress 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 in, for example, a hospital or a care facility. The electric furniture 310 may be used at home, for example.

  In this example, the bottom 71 includes a 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 unit 70 may further include a head bottom 70 d (head section). In a plurality of portions (back bottom 70a, knee bottom 70b, leg bottom 70c, and head bottom 70d) included in the bottom 71, the angles of each other can be changed.

  For example, the bottom 71 is provided on the frame 75. In this example, a caster 70 g is 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 unit 160 can control the movable portion 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. The control device 160 is a hand switch, for example.

  The control device 160 is provided with an operation receiving unit 20 (buttons, touch panel, or the like). The operation reception unit 20 receives a user's operation. When the user operates the operation receiving unit 20, for example, the movable unit 70 is controlled.

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

  In this example, a control circuit 43 is provided. The control device 160 is connected to the control circuit 43 by the cable 15. The movable unit 70 is operated by the operation of the control circuit 43.

  In this example, a bedside terminal 47 is provided. For example, the bedside terminal 47 may display the state of the bed (for example, the angle and height of the bottom). The user's state 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 related to 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. In the case where the electric furniture 310 is a bed, the first state is a floored state. The first state includes, for example, at least one of a state where the user is lying, a state where the user is sitting, and a state where the user is getting up. The first state includes, for example, a state where the bed receives substantially all of the weight of the user. On the other hand, the second state is, for example, a bed leaving state. In addition, a third state such as an end sitting position may be detected. For example, the load that the bed receives in the first state is larger 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 (an actuator described later) that drives the bottom 71 is provided. The first sensor 61 is provided in this driving unit. The first sensor 61 is, for example, a load sensor.

  On the other hand, the second sensor 62 detects a biological signal of the user. The biological signal includes a user's body movement. The biological signal includes, for example, at least one of the user's respiration 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 accompanying the user's breathing and heartbeat. Thereby, the respiratory rate, the 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 in the first state (for example, the lying state). ), Biological information corresponding to at least a part of the biological signal is output.

  For example, regardless of whether the user is lying on the bed, using the output of the second sensor 62 as biometric information may prove that it may take time to obtain accurate biometric information, as will be described later. It was.

  In the embodiment, the biological information is output when the first detection result is the first state (for example, the lying state). Thereby, 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 an arbitrary place. The process may be performed by the second sensor 62, for example. The processing may be performed by the control circuit 43, for example. The processing may be performed by, for example, the bedside terminal 47 or a server.

  Hereinafter, the case where processing is performed by the second sensor 62 will be described as an example.

FIG. 2 is a schematic view 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 detection result S61 is output from the first sensor 61. 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 unit 62c, a sensor unit 62d, and a circuit unit 62a. For example, the first detection result S61 is provided to the circuit unit 62a via the communication unit 62c. On the other hand, the biological signal S62 is detected by the sensor unit 62d. The obtained biological signal S62 is supplied to the circuit unit 62a.

  In the circuit unit 62a, the first detection result S61 is in the 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. Sometimes, the biological information BS0 corresponding to at least a part of the biological signal S62 is generated.

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

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

  As shown in FIG. 2, the circuit unit 62a (or the communication unit 62c) has 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”. Such information may be displayed on the bedside terminal 47 or the server, for example.

  Thus, in this example, based on the first detection result S61 and the biological signal S62, the second sensor 62 outputs the biological information BS0 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). Further, 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 or not the first detection result S61 is in the first state (step S130). In the first state, the biological information BS0 is output (step S140). For example, information related to heart rate and respiration rate is output. This information may be displayed on the bedside terminal 47, for example. This information may be supplied to a server or the like.

  In step S130, when 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 step S110.

Hereinafter, examples of various signals in the electric furniture will be described.
FIG. 4A to FIG. 4D are schematic views 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. 4A is the signal intensity corresponding to the first detection result S61. The vertical axis in FIG. 4B is the signal intensity corresponding to the biological signal S62. The vertical axis in FIG. 4C is a value corresponding to the biological information BS0 (for example, heart rate or respiration rate). The vertical axis in FIG. 4D corresponds to the output SS0 output from the circuit unit 62a (or the communication unit 62c) to the outside. The output SS0 is information corresponding to the first state information SS1 or the second state information SS2, for example.

  As shown in FIG. 4A, when the first detection result S61 (for example, load) is larger than the first threshold value V1, it is determined as the first state ST1. When the first detection result S61 (for example, load) is less than the second threshold value V2, it is determined that the second state ST2. In addition, a third state such as an “end sitting position” between them may be provided. In this example, in a period before the first time t1, the user is in the first state ST1 (for example, the “lie down” state).

  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) that repeats periodic changes. The biological signal S62 is, for example, a heartbeat. This biological signal may be respiration. Hereinafter, a case where the biological signal S62 is a heartbeat will be described.

  As shown in FIG. 4B, after the first time t1, the biological signal S62 changes abnormally greatly (abnormal biological state BSX). This change corresponds to an operation in which the user gets up from the “lie down” state. Further, thereafter, the biological signal S62 is in a state (second biological state BS2) showing a very small change. The second biological state BS2 corresponds to, for example, a state where the user is getting 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 as the biological information BS0 from the circuit unit 62a (or the communication unit 62c).

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

  In the embodiment, the user detects whether or not the first state ST1 is the second state ST2 by the first sensor 61. Based on the detection result, when the state is the first state ST1, the obtained biological signal S62 can be output as the biological information BS0. Thereby, more accurate biological information BS0 can be provided.

  As shown in FIG. 4D, from the circuit unit 62a (or the communication unit 62c), as the output SS0, the first state information SS1 (information indicating “lie down”) or the second state information SS2 ( Information indicating “getting out bed” may be output.

FIG. 5A to FIG. 5D are schematic views illustrating display in the electric furniture according to the first embodiment.
These drawings show examples of display on the bedside terminal 47, for example. As shown in FIG. 5A, the user name 81N may be displayed in the display image D1. In the display image D1, as the biological information BS0, for example, a character “50” as the heart rate and a number “10” as the respiration rate are displayed. In this example, first state information SS1 indicating that the user is in the first state ST1 is displayed. 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 “wakefulness”. The distinction between “sleep” or “wakefulness” may be detected by the second sensor 62.

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

  As shown in FIG. 5D, the second state information SS2 may be displayed when the user is in the bed leaving state. 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 state information SS2 is displayed. For example, when the third state is detected, the second state ST2 may be determined when the third state is not the first state ST1 but the third state.

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

  In an embodiment, you may have an operation mode (bed-out detection mode) which detects a user's bed from living body signal S62 obtained by the 2nd sensor 62. FIG. In this case, the obtained biological signal S62 includes a signal corresponding to the heartbeat or respiration of the user and a signal corresponding to the vibration associated with getting out of bed.

  Even in this case, the user's bed is detected based on the first detection result S61 obtained by the first sensor 61, and based on the 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 biological information BS0 can be obtained.

  For example, when performing an operation for detecting the user's getting out of bed from the biological signal S62 obtained by the second sensor 62 (bedout detection mode), whether the fluctuation generated in the biological signal S62 is a fluctuation of the heart rate or the like. It is difficult to judge whether the change is accompanied. For this reason, special data processing may be performed. For this reason, it may take time to obtain the biological information BS0 from the biological signal S62. Furthermore, it may take time to detect getting out of bed.

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

Hereinafter, an example in which the above processing is performed by the processing circuit 43 will be described.
FIG. 6 is a schematic view 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, the first detection result S <b> 61 is supplied from the first sensor 61 to the control circuit 43. On the other hand, the biological signal S62 is detected by the sensor unit 62d. The obtained biological signal S62 is supplied to the circuit unit 62a. The biological signal S62 processed by the circuit unit 62a is supplied to the control circuit 43 via the communication unit 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 that the first detection result S61 is in the first state ST1. At some point, biometric information BS0 corresponding to at least a part of the biosignal S62 is generated.

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

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

  As described above, the electric furniture 311 according to the embodiment may further include the processing unit 42. The processing unit 42 is a control circuit 43, for example. 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 view 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 72 a to 72 c. The first actuator 72a corresponds to, for example, the height changing unit 70h (see FIG. 1). For example, 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.

  The control circuit 43 supplies control signals for the operation of these actuators to these actuators.

  In this example, a first load sensor 61 a is provided as the first sensor 61. The first load sensor 61a is provided in the first actuator 72a. In the embodiment, a second load sensor 61 b may be provided as the first sensor 61. The second load sensor 61b is provided in the second actuator 72b. In the embodiment, a third load sensor 61 c may be provided as the first sensor 61. The third load sensor 61c is provided in 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.

  Thus, the 1st sensor 61 may detect 1st state ST1 or 2nd state ST2 based on the change of the load which 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 miniaturized. 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 electric furniture 312, a communication network 46 is provided. In the communication network 46, communication by at least one of wired and wireless is possible. One port of the communication network 46 is connected to the control circuit 43. Another port of the communication network 46 is connected to the second sensor 62. Another port of the communication network 46 may be connected to the bedside terminal 47. Another port of the communication network 46 may be connected to the communication device 45. The communication device 45 is connected to a server 49 or 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.

  Hereinafter, some examples of the second sensor 62 will be described.

FIG. 8A and FIG. 8B are schematic views 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. 8B is a schematic plan view illustrating the second sensor 62. In FIG. 8A, the components are drawn apart from each other to make the drawing easier to see.

  As shown in FIG. 8A, in the electric furniture 340, the 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 has a sheet shape or a plate shape.

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

  The sensor unit 62b includes, for example, a sensor component 62d. The sensor unit 62b detects the force (or characteristics corresponding to the force) received by the sensor unit 62b. The force includes, for example, pressure and / or sound waves. The sensor unit 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 wave) by the user 81 is applied to the sensor unit 62b via the mattress 76. For example, a signal based on the force detected by the sensor unit 62b is output from the circuit unit 62a. The output signal is supplied to the control circuit 43. In the control circuit 43, the state of the user 81 (such as getting out of bed, sleeping, or awakening) 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). The Alternatively, in the circuit unit 62a, the state of the user 81 (eg, getting out of bed, sleeping or awakening) may be estimated based on at least one of the force detected by the sensor unit 62b and the temporal change in the force. . The state of the user 81 may include getting up, getting ready for getting out of bed (for example, end sitting position), getting out of bed, falling asleep, sleeping, or awakening.

  Further, at least one of the control circuit 43 and the circuit unit 62a detects the user's biological signal based on at least one of the magnitude of the signal (force) and the temporal change in the magnitude of the signal (force). Is done. The biological signal includes at least one of a user's respiration rate and heart rate. The sleep state may be estimated based on the biological signal. Based on the biological signal, the posture of the user when sleeping may be estimated.

  For example, vibration according to the state of the user 81 is applied to the sensor unit 62b. The vibration corresponds to the body movement of the user 81, for example. Vibration is detected by the sensor unit 62b. The vibration may include sound.

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

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

FIG. 9A to FIG. 9D are schematic views illustrating another electric furniture according to the embodiment.
FIG. 9A is a cross-sectional view of an example of the second sensor 62. FIG. 9B 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. 9D 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 body 62p and a second plate body 62q. The second plate body 62q faces the first plate body 62p. These plates may be in the form of sheets.

  The second plate body 62q includes a support protrusion 62s. The support protrusion 62s faces the outer edge portion of the first plate body 62p. The first plate body 62p includes an inner portion inside the outer edge portion. An air accommodating body 62r is provided between the inner portion and the second plate body 62q. In this example, a groove 62t is provided in the second plate body 62q. An air accommodating body 62r is provided in a space formed by the groove 62t (a space to be divided). 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. 9B, 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 the four corner portions of the first plate body 62p. The sensor 62 has a sheet shape or a plate shape.

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

  As shown in FIG. 9D, 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, a force corresponding to the body movement of the user 81 is applied to the air containing body 62r. This force includes, for example, vibration. A force (or a 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, 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 62v is supplied to the control circuit 43. In the control circuit 43, the state of the user 81 (such as getting out of bed, sleeping, or awakening) is estimated. Alternatively, the detection circuit 62v may estimate the state of the user 81 (such as getting out of bed, sleeping, or awakening) based on at least one of the detected force and the temporal change in the force. The state of the user 81 may include getting up, end sitting position (for example, getting ready for getting out of bed), getting out of bed, falling asleep, sleeping or awakening.

  The second sensor 62 is, for example, a biological information collection device. In the second sensor 62, the first plate body 62p is disposed on the body side of the user 81, for example. The second plate body 62q is provided on the support side, for example. A deformable air accommodating body 62r for detecting air pressure is provided between the central portions of the first plate body 62p and the second plate body 62q. A groove 62t for mounting the air accommodating body 62r is provided at the center of the second plate body 62q. The support protrusion 62s protrudes in the direction from the second plate 62q toward the first plate 62p. The support protrusions 62s support the four corners around the first plate body 62p. For example, the support protrusions 62s always support the first plate body 62p in a horizontal state (normal state).

  In the embodiment, the second sensor 62 can be variously modified.

FIG. 10 is a schematic view illustrating another electric furniture according to the embodiment.
As shown in FIG. 10, in the electric furniture 350, a load sensor 61 </ b> F is provided as the first sensor 61. The load sensor 61F is provided, for example, on an upper part of a bed caster 70g. Also in this case, the first state ST1 or the second state ST2 in the user 81 can be detected by the load sensor 61F.

  Accordingly, as illustrated in FIG. 10, an image sensor 61 </ b> G may be provided as the first sensor 61. The first state ST1 or the second state ST2 in 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 view illustrating another electric furniture according to the embodiment.
As shown in FIG. 11, in the electric furniture 351, a load sensor 61 </ b> H is provided as the first sensor 61. The load sensor 61H is, for example, a sheet shape. The load sensor 61H is placed on the floor near the bed, for example. 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 (a state where the user 81 is in the electric furniture) or the second state ST2 (a state where the user 81 is not in the electric furniture) in the user 81 ) Can be detected.

  As shown in FIG. 11, load sensors 61 </ b> J and 61 </ b> K may be provided as the first sensor 61 in the electric furniture 351. The load sensors 61J and 61K and the like are provided, for example, on a bed rail 75L (side rail or the like). The load sensors 61J and 61K may be provided on the frame 75 or the like. The load sensors 61J and 61K may be provided on a handrail. For example, when the user 81 of the bed gets up from the bed and tries to leave the bed, the user may touch the rail 75L, the frame 75 or various handrails (support the body) to support the body. The first state ST1 or the second state ST2 in the user 81 can be detected by detecting the load due to 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 a state in which the first sensor 61 (load sensors 61H, 61J, 61K, etc.) does not detect a load, for example. The second state is a state when the first sensor 61 (load sensors 61H, 61J, 61K, etc.) detects a load, for example.
The first state corresponds to, for example, a state where the user 81 is 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 biological signal S62 obtained by the second sensor 62, and the first detection result S61 are in the first state, the biological signal S62. The 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 a 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 load sensor 61 </ b> F is provided on the legs of the electric furniture 360. A second sensor 62 is provided on the backrest portion 70p.

  According to the embodiment, it is possible to provide electric furniture that can detect biological information more accurately.

  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 such as a sensor, a processing unit, a processing circuit, a movable unit, a bottom, and a mattress included in the electric furniture, a person skilled in the art appropriately selects the present invention from a known range. It is included in the scope of the present invention as long as the same effect can be obtained.

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

  In addition, all electric furniture that can be implemented by a person skilled in the art based on the electric furniture described above as an embodiment of the present invention is also within the scope of the present invention as long as it includes the gist of the present invention.

  In addition, in the category of the idea of the present invention, those skilled in the art can conceive of various changes and modifications, and it is understood that these changes 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 ... 1st sensor, 61F ... Load sensor 61G ... Image sensor 61H, 61J, 61K ... Load sensor 61a-61c ... First to third load sensor 62 ... Second sensor 62a ... Circuit part 62b ... Sensor part 62c ... Communication part 62d ... Sensor parts, 62p ... 1st plate, 62q ... 2nd 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: Back portion, 70q: Seat surface portion, 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 states, BSX ... Abnormal biological state, 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, second threshold , T1 ... first time, tm ... time

Claims (14)

A first detection result obtained by a first sensor that detects at least a first state in which the user is in the electric furniture and a second state in which the user is not in the electric furniture;
A biological signal obtained by the second sensor provided in the electric furniture, including the movement of the user;
Based on this, when the first detection result is in the first state, the electric furniture outputs biological information corresponding to at least a part of the biological signal.   The electric furniture according to claim 1, wherein when the first detection result is the second state, information indicating that the second state is output. A processing unit,
The electric motor according to claim 1, wherein the processing unit obtains the first detection result and the biological signal, and outputs the biological information when the first detection result is in the first state. furniture.   The electric motor according to claim 1 or 2, wherein the second sensor outputs the biological information when the first detection result is in the first state based on the first detection result and the biological signal. furniture. The electric furniture includes a bottom;
The electric furniture according to claim 1, wherein the second sensor is provided on the bottom.   The electric furniture according to claim 5, wherein the first sensor detects the first state or the second state based on a change in a load received by the bottom.   The electric furniture according to claim 5 or 6, wherein the first sensor is provided in a driving unit that drives the bottom. A first actuator;
The first actuator changes a height of the bottom;
The electric furniture according to claim 5 or 6, wherein the first sensor includes a first load sensor provided in the first actuator. A second actuator;
The second actuator changes an inclination of the bottom;
The electric furniture according to claim 5, wherein the first sensor includes a second load sensor provided in the second actuator.   The electric furniture according to claim 1, further comprising the first sensor.   The electric furniture according to claim 1, further comprising the second sensor.   The electric furniture according to claim 1, wherein the biological signal includes at least one of a respiration rate and a heart rate of the user. The electric furniture is a bed;
The electric furniture according to any one of claims 1 to 12, wherein the second sensor has an operation mode in which the user's bed is detected from the body movement of the user.   The electric furniture according to claim 1, wherein the second sensor is capable of detecting a sleep state of the user from the body movement of the user.

Images