Electric furniture
阅读说明:本技术 电动家具 (Electric furniture ) 是由 窪田伸之助 椎野俊秀 坂卷匡彦 横尾俊辅 于 2018-12-05 设计创作,主要内容包括:本发明提供一种电动家具。根据实施方式,电动家具包括控制部。在从检测到电动家具的用户的睡眠的第一时刻起的经过时间是第一时间阈值以上的第二时刻,控制部转换到第一入睡动作。当第一入睡动作中的第一期间中的与用户的生物信号对应的信号的变动小于第一入睡动作中的第一期间前的第一前期间中的变动时、或者第一期间中的变动和第一前期间中的变动之差的绝对值小于第一变动阈值时,控制部实施第二入睡动作。在第二入睡动作中,控制部实施使电动家具的底板的倾斜度减小的动作、使电动家具的床垫的头部的高度和床垫的腰部的高度之差减小的动作、以及使头部的压力和腰部的压力之差减小的动作中的至少任一个动作。由此,能够提供更舒适的睡眠。(The invention provides electric furniture. According to an embodiment, the electromotive furniture comprises a control. The control unit shifts to the first sleep-in operation at a second time when an elapsed time from a first time when sleep of the user of the electric furniture is detected is equal to or greater than a first time threshold. The control unit performs the second sleep onset operation when a variation in a signal corresponding to the biological signal of the user in the first period in the first sleep onset operation is smaller than a variation in a first preceding period before the first period in the first sleep onset operation, or an absolute value of a difference between the variation in the first period and the variation in the first preceding period is smaller than a first variation threshold. In the second sleep-in operation, the control unit performs at least one of an operation of reducing the inclination of the bottom plate of the electric furniture, an operation of reducing the difference between the height of the head of the mattress of the electric furniture and the height of the waist of the mattress, and an operation of reducing the difference between the pressure of the head and the pressure of the waist. Thereby, more comfortable sleep can be provided.)
1. An electromotive furniture, which is provided with a control part,
the control unit shifts to a first sleep-in operation at a second time when an elapsed time from a first time when the sleep of the user of the electric furniture is detected is equal to or greater than a first time threshold,
the control unit performs a second sleep onset operation when a variation in a signal corresponding to a biological signal of the user in a first period in the first sleep onset operation is smaller than the variation in a first preceding period before the first period in the first sleep onset operation, or when an absolute value of a difference between the variation in the first period and the variation in the first preceding period is smaller than a first variation threshold,
in the second sleep-in operation, the control unit performs at least one of an operation of reducing an inclination of a floor of the electric furniture, an operation of reducing a difference between a height of a head of a mattress of the electric furniture and a height of a waist of the mattress, and an operation of reducing a difference between a pressure of the head and a pressure of the waist.
2. The electromotive furniture piece according to claim 1,
the control unit repeats the first sleep-in operation and the second sleep-in operation.
3. The electromotive furniture piece according to claim 1,
in the second falling asleep operation, the control unit performs the operation of reducing the inclination of the floor panel of the electric furniture,
the difference between the angle of the floor after the inclination is reduced and the angle of the floor before the inclination is reduced is 1 degree or less.
4. The electromotive furniture piece according to claim 1,
further comprises an operation receiving part capable of communicating with the control part,
when the operation receiving section receives an operation, the control section starts detection of the sleep of the user.
5. The electromotive furniture piece according to claim 1,
when a set time is reached, the control unit starts the sleep detection of the user.
6. The electromotive furniture piece according to claim 1,
the control unit ends the first falling asleep operation when at least one of the user wakes up and the user leaves the bed for a second time threshold or more.
7. The electromotive furniture piece according to claim 1,
the control unit ends the second falling asleep operation when at least one of the user wakes up and the user leaves the bed for a second time threshold or more.
8. The electromotive furniture piece according to claim 1,
the control portion ends detection of the sleep of a previous user when at least one of waking up of the user and getting out of bed of the user continues for more than a second time threshold.
9. The electromotive furniture piece according to claim 1,
the length of the first period is 10 seconds to 5 minutes.
10. The electromotive furniture piece according to claim 1,
the first time threshold is 5 minutes or more and 30 minutes or less.
11. The electromotive furniture piece according to claim 1,
the signal comprises information related to the heart rate of the user.
12. The electromotive furniture piece according to claim 1,
the signal comprises information related to the breathing frequency of the user.
13. The electromotive furniture piece according to claim 1,
the signal includes information relating to a motion of at least any one of an arm, a body, and a foot of the user.
14. The electromotive furniture piece according to claim 1,
the signal includes information related to a turn of the user.
15. The electromotive furniture piece according to claim 1,
in the first sleep-in operation, the control unit does not execute the second sleep-in operation when the absolute value is equal to or greater than the first variation threshold.
16. The electromotive furniture piece according to claim 1,
the control unit does not perform the second sleep-in operation when the variation in the first period in the first sleep-in operation is smaller than the variation in the first preceding period.
17. The electromotive furniture piece according to claim 1,
after the first and second sleep-in actions, the signal comprises a first signal state and a second signal state,
the variation of the signal in the second signal state is less than the variation of the signal in the first signal state,
the control unit may make the inclination of the floor greater than the increased inclination when the signal is in the first signal state closest to the predetermined time before the predetermined time.
Technical Field
Embodiments of the present invention relate to electrically powered furniture.
Background
For example, there is a power-driven furniture (for example, a power-driven bed, a power-driven seat, or the like) in which the height and the inclination of the backrest can be changed. For example, a technique has been proposed to promote falling asleep by lowering the back when it is determined that the user enters a sleep state. On the other hand, a technique of lowering a headrest to secure respiratory tract safety when snoring or apnea is generated has been proposed. It is desirable to provide a more comfortable sleep for the user.
Disclosure of Invention
Technical problem to be solved by the invention
Embodiments of the present invention provide an electromotive furniture capable of providing a more comfortable sleep.
Technical scheme for solving problems
According to an embodiment, the electromotive furniture comprises a control. The control unit shifts to a first sleep-in operation at a second time when an elapsed time from a first time when sleep of the user of the electric furniture is detected is equal to or greater than a first time threshold. The control unit performs a second sleep onset operation when a variation in a signal corresponding to a biological signal of the user during a first period in the first sleep onset operation is smaller than the variation during a first preceding period before the first period in the first sleep onset operation, or an absolute value of a difference between the variation during the first period and the variation during the first preceding period is smaller than a first variation threshold. In the second sleep-in operation, the control unit performs at least one of an operation of reducing an inclination of a floor of the electric furniture, an operation of reducing a difference between a height of a head of a mattress of the electric furniture and a height of a waist of the mattress, and an operation of reducing a difference between a pressure of the head and a pressure of the waist.
Effects of the invention
Embodiments of the present invention may provide an electric furniture that can provide a more comfortable sleep.
Drawings
Fig. 1 is a schematic perspective view illustrating an electromotive furniture of a first embodiment.
Fig. 2(a) to 2(f) are schematic views illustrating control of the electric furniture according to the first embodiment.
Fig. 3 is a block diagram illustrating an electromotive furniture of the first embodiment.
Fig. 4(a) and 4(b) are schematic views illustrating the operation of the electromotive furniture according to the first embodiment.
Fig. 5 is a flowchart illustrating an operation of the electromotive furniture according to the first embodiment.
Fig. 6 is a schematic perspective view illustrating an electromotive furniture of the second embodiment.
Fig. 7(a) and 7(b) are schematic side views illustrating an electromotive furniture according to a second embodiment.
Fig. 8(a) and 8(b) are schematic views illustrating the operation of the electromotive furniture according to the second embodiment.
Fig. 9 is a flowchart illustrating an operation of the electromotive furniture according to the second embodiment.
Fig. 10(a) and 10(b) are schematic views illustrating the operation of the electromotive furniture according to the third embodiment.
Fig. 11(a) and 11(b) are schematic views illustrating an electric furniture according to an exemplary embodiment.
Fig. 12(a) to 12(d) are schematic views illustrating another electric furniture according to the embodiment.
Fig. 13 is a schematic perspective view illustrating another embodiment of the electromotive furniture.
Fig. 14 is a schematic view illustrating an operation of the electromotive furniture according to the embodiment.
Fig. 15 is a schematic view illustrating an operation of the electromotive furniture according to the embodiment.
Fig. 16 is a schematic diagram illustrating an operation of the electromotive furniture according to the embodiment.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The drawings are schematic or conceptual drawings, and the relationship between the thickness and width of each portion, the ratio of the size between portions, and the like are not necessarily the same as actual ones. Even in the case where the same portions are represented, the sizes and proportions thereof are sometimes represented differently from each other according to the drawings.
In the present specification and the drawings, the same elements as those described with reference to the previous drawings are denoted by the same reference numerals, and detailed description is appropriately omitted.
(first embodiment)
Fig. 1 is a schematic perspective view illustrating an electromotive furniture of a first embodiment.
As shown in fig. 1, the
In this example, an
The
The
In this example, the
The
For example, the angle of the back of the user can be changed by the operation of the
The
For example, an actuator is used as the
The
In the example of fig. 1,
The
In an embodiment, automatic control may be implemented in addition to manual control by the user. In the automatic control, for example, the controlled section 70C (e.g., the movable section 70) is controlled without an operation by a user or the like. This control is performed by the
In the embodiment, the
The bio-signal includes, for example, a signal (e.g., information) related to a body motion of the user. The bio-signal includes, for example, a signal (e.g., information) related to at least any one of a respiratory rate and a heart rate of the user. For example, the bio-signal may also include a signal (e.g., information) related to the motion of at least any one of the user's arms, torso, and feet. For example, the bio-signal may also include a signal (e.g., information) related to a turn of the user.
The biological signal is detected by the
An example of the automatic control of the
Fig. 2(a) to 2(f) are schematic views illustrating control of the electric furniture according to the first embodiment.
In the example shown in fig. 2(a) to 2(f), a
For example, the angle between the
As shown in fig. 2(d), the angles of the knee
As shown in fig. 2(e), the angles of the
As shown in fig. 2(f), the movement of the
As shown in fig. 2(a) to 2(f), the
In one example, the driving
Hereinafter, a case where the
Hereinafter, an example of the functional blocks of the
Fig. 3 is a block diagram illustrating an electromotive furniture of the first embodiment.
As shown in fig. 3, for example, the
The
In the embodiment, the
On the other hand, the state of the user is detected by the
The signal SS acquired by the
The block diagram illustrated in fig. 3 illustrates functional blocks. Multiple functions may also be implemented in one part (e.g., a circuit). For example, at least a part of the functions of the
An example of control based on a biological signal will be described below. In an embodiment, the bio-signal comprises at least any one of a breathing rate and a heart rate of the user, for example. The breathing frequency is the number of breaths per unit time. The heart rate is the number of beats per unit time. The unit time is, for example, 1 minute. These bio-signals are related to the state of the person (user).
In addition, the biological signal varies with time according to the state of the person. For example, when a person is awake, a biological signal (such as a respiratory rate or a heart rate) is likely to fluctuate in accordance with the activity of the person. For example, during sleep, the variation in biological signals (respiratory rate, heart rate, and the like) is small compared to when awake. For example, during sleep, the movement of at least one of the arms, trunk, and feet of the user has less fluctuation than during waking.
Even during sleep, the biological signal changes depending on the state of sleep. As an example, there are rapid eye movement sleep and non-rapid eye movement sleep in human sleep. In rapid eye movement sleep, a low amplitude brain wave is generated similar to that when waking up. Rapid eye movement sleep is accompanied by rapid eye movement. During non-rapid eye movement sleep, brain waves produce spindle waves or waves of high amplitude. For example, the variation of the bio-signal in the rapid eye movement sleep is larger than the variation of the bio-signal in the non-rapid eye movement sleep.
For example, it is considered that more comfortable sleep can be provided by establishing a state in which rapid eye movement sleep and non-rapid eye movement sleep are appropriately performed.
In the embodiment, the
The
An example of the change of the floor angle θ in response to the change of the signal SS will be described below.
Fig. 4(a) and 4(b) are schematic views illustrating the operation of the electromotive furniture according to the first embodiment.
The horizontal axis of these figures is time tm.
The vertical axis of fig. 4(a) represents the variation Δ S of the signal SS. On the vertical axis of fig. 4(a), the variation Δ S1 is larger than the variation Δ S2. The variation Δ S includes, for example, at least one of a change over time in the signal SS and a change in the amplitude of the signal SS. For example, the short-term variation Δ S between the minimum value and the maximum value of the signal SS is larger than the long-term variation Δ S between the minimum value and the maximum value of the signal SS. For example, the variation Δ S when the difference (amplitude) between the minimum value and the maximum value of the signal SS is large is larger than the variation Δ S when the difference (amplitude) between the minimum value and the maximum value of the signal SS is small.
The vertical axis of fig. 4(b) is an angle (floor angle θ). For example, the back lift angle varies according to the floor angle θ. For example, the
When the floor angle θ is 3 degrees or more and less than 12 degrees, for example, there is a therapeutic effect of orthostatic hypotension. For example, as a result of experiments, when the floor angle θ is 20 degrees, the feeling during sleep is significantly deteriorated as compared to when the floor angle θ is 10 degrees.
For example, when the upper surface of the bottom plate 71 (bed) is flat (e.g., the first angle θ 1), it is considered to be easy to turn over. On the other hand, when the bottom plate 71 (back
In the embodiment, the angle of the bottom plate 71 (for example, the bottom plate angle θ) is changed in accordance with the variation Δ S of the signal SS corresponding to the biological signal.
For example, the
For example, when the variation Δ S of the signal SS decreases, the sleep of the user becomes deeper step by step. At this time, by increasing the floor angle θ from the
The
When the variation Δ S of the signal SS increases, the user often wants to turn over. At this time, the bed angle θ is decreased toward the
Furthermore, after the second action OP2, a first action OP1 is implemented. Thus, for example, deep sleep can be promoted more quickly after a turn. These first action OP1 and second action OP2 are repeatedly performed. Thereby, high quality sleep can be provided.
In this way, in the first action OP1, the
In the second operation OP2, in the third state, the
For example, the signal SS includes a plurality of states (e.g., a first signal state st1 and a second signal state st 2: refer to FIG. 4 (a)). As shown in fig. 4(a), the variation Δ S of the signal SS in the second signal state st2 is smaller than the variation Δ S of the signal SS in the first
For example, consider the first signal state st1 corresponding to rapid eye movement sleep. For example, consider the second signal state st2 corresponding to non-rapid eye movement sleep.
For example, the first action OP1 corresponds to an action when transitioning from the first signal state st1 to the second signal state st 2. The first action OP1 corresponds to the action when transitioning from fast eye movement sleep to non-fast eye movement sleep. The second action OP2 corresponds to an action when transitioning from the second signal state st2 to the first
The
As described above, the signal SS includes the first signal state st1 and the second signal state st 2. Before a predetermined time t1, when the signal SS is in the first signal state st1 closest to the time t1, the
Thereby, the user can wake up comfortably. For example, during rapid eye movement sleep closest to the prescribed time t1, it may be awakened by increasing the floor angle θ.
In the third action OP3, the inclination (floor angle θ) of the
As shown in fig. 4(b), the
In the embodiment, for example, the
In the above example, the angle changed in accordance with the variation Δ S of the signal SS corresponding to the biological signal is the angle of the
The electric furniture 310 (see fig. 1) of the present embodiment includes the
In the above example, the sleep state of the user is estimated from the biological signal, and the
Hereinafter, an example of a flowchart of the electric furniture according to the present embodiment will be described.
Fig. 5 is a flowchart illustrating an operation of the electromotive furniture according to the first embodiment.
For example, the
For example, it is determined whether or not control
In step S211, when no operation is performed for a predetermined period of time (in the case of "Yes"), the automatic control described below is performed.
When there is no operation (when automatic control is performed), a signal SS corresponding to the biological signal is acquired (step S212). Then, it is determined whether or not the variation Δ S of the signal SS is equal to or less than a threshold value (step S213). If the variation Δ S of the signal SS is not equal to or less than the threshold value, the process returns to step S211.
When it is determined in step S213 that the variation Δ S is equal to or less than the threshold, the inclination of the floor 71 (e.g., the
Further, it is determined whether or not an operation is performed on control device 160 (step S101). When there is an operation (in the case of "No"), the
In step S101, when there is no operation (in the case of "Yes"), a signal SS corresponding to the biological signal is acquired (step S110).
Further, for example, it is determined whether or not the variation Δ S of the signal SS is reduced (step S111). When the variation Δ S decreases, the inclination of the bottom plate 71 (back
In step S111, when the variation Δ S is not decreased, it is determined whether the variation Δ S is increased (step S121). For example, whether the variation Δ S increases is determined using a threshold value related to the increase in the variation Δ S.
In step S121, if the variation Δ S is not increased, the variation Δ S is not substantially changed. At this time, the process returns to step S101.
In step S121, when the variation Δ S increases (that is, when the variation Δ S is the first signal state st1 in which the variation Δ S is large), it is determined whether or not the first signal state st1 is the first signal state st1 closest to the time t1 before the predetermined time t1 (step S131).
In step S131, when the time t1 is not the closest time (in the case of "No"), the inclination of the
In step S131, if it is determined that the first signal state st1 is the first signal state st1 closest to the time t1 before the time t1, the inclination of the
In the above case, the steps can also be switched within the technically possible range. For example, step S111 and step S121 may be switched to each other. In this case, step S112 and step S122 are switched in conjunction with each other.
(second embodiment)
In the present embodiment, the shape of the mattress is changed based on the signal SS corresponding to the biological signal.
Fig. 6 is a schematic perspective view illustrating an electromotive furniture of the second embodiment.
As shown in fig. 6, the electromotive furniture 320 of the present embodiment includes a mattress 76 and a
For example, the mattress 76 includes a plurality of air cells (air cells) 76 a. The air cells 76a are arranged, for example, in a direction (for example, X-axis direction) connecting the head and the foot of the mattress 76. For example, the air cells 76a extend in the left-right direction (e.g., Y-axis direction) of the mattress 76. For example, the pump unit 76b controls the amount of air in each of the plurality of air chambers 76 a. Thereby, the internal pressure of each of the plurality of air chambers 76a changes. For example, the heights of the air chambers 76a (e.g., the positions of the upper ends of the air chambers in the Z-axis direction) may be changed.
For example, a mattress driving section 76f (e.g., a circuit section) is provided. The pump unit 76b is connected to the mattress driving section 76f via a cable 76 c. The pump unit 76b is operated by the control unit of the mattress driving unit 76f, and as a result, the state of the plurality of air cells 76a can be variously controlled.
In this example, a mattress operating portion 76d is provided. The mattress operating section 76d is connected to the mattress driving section 76f via a cable 76 e. The mattress operating section 76d receives an operation by a user or the like of the mattress 76. The state of the mattress 76 (for example, the shape of the plurality of air cells 76a) can be controlled by manual control as a result of supplying the mattress driving section 76f with the signal SM corresponding to the operation received by the mattress operating section 76 d.
In the present embodiment, the state (e.g., shape) of the mattress 76 is controlled by automatic control of the
In the embodiment, a detection portion 60 (e.g., a sensor 62) is provided. For example, the
The
First, an example of the state of the mattress 76 will be described below.
Fig. 7(a) and 7(b) are schematic side views illustrating an electromotive furniture according to a second embodiment.
These figures illustrate the state (e.g., shape) of the mattress 76. Fig. 7(a) corresponds to one state in the mattress 76 (first mattress state mt 1). Fig. 7(b) corresponds to another state in the mattress 76 (second mattress state mt 2).
A part (head 77a) of the plurality of air cells 76a corresponds to the head of the user. Another portion (waist portion 77b) of the plurality of air cells 76a corresponds to the waist portion of the user. Still another part (the foot 77c) of the plurality of air cells 76a corresponds to the foot of the user.
As shown in fig. 7(a), in the first mattress state mt1, the height of the waist 77b of the mattress 76 (the height of the upper portion) is low with reference to the height of the head 77a of the mattress 76 (the height of the upper portion). For example, the waist 77b of the mattress 76 is lower in height than the legs 77c of the mattress 76. In the first mattress state mt1, the shape of the mattress 76 has a gentle slope. When a user lies on mattress 76 in first mattress state mt1, the user's back is gently inclined. In the first mattress state mt1, the height of foot 77c may also be lower than the height of head 77 a.
On the other hand, as shown in fig. 7(b), in the second mattress state mt2, the height of the waist portion 77b of the mattress 76 is substantially the same as the height of the head portion 77a of the mattress 76. The height of the waist portion 77b of the mattress 76 is substantially the same as the height of the foot portion 77c of the mattress 76. In the second mattress state mt2, mattress 76 is substantially flat. When a user lies on mattress 76 in second mattress state mt2, the user's back is substantially flat. In the second mattress state mt2, the height of the waist 77b may also be slightly higher than the height of the head 77 a.
For example, when the mattress 76 is flat (e.g., the second mattress state mt2), it is considered easy to roll over. On the other hand, when the mattress 76 is slowly tilted (e.g., the first mattress state mt1), the user easily falls asleep.
In the embodiment, the
Fig. 8(a) and 8(b) are schematic views illustrating the operation of the electromotive furniture according to the second embodiment.
The horizontal axis of these figures is time tm. The vertical axis in fig. 8(a) represents the variation Δ S of the signal SS. As shown in fig. 8(a), the signal SS includes a plurality of states (e.g., a first signal state st1 and a second signal state st 2). In this case, the variation Δ S of the signal SS in the second signal state st2 is also smaller than the variation Δ S of the signal SS in the first
The vertical axis in fig. 8(b) is the height HR of the waist 77b of the mattress 76 with respect to the height of the head 77a of the mattress 76. In the first mattress state mt1, the waist 77b is lower than the head 77a, and the shape of the mattress 76 is a gentle incline state. In the second mattress state mt2, the height of the waist 77b is substantially the same as the height of the head 77a, and the shape of the mattress 76 is flat.
When the variation Δ S of the signal SS decreases, the
For example, when the variation Δ S of the signal SS decreases, the sleep of the user is deepening. At this time, the shape of the mattress 76 is controlled toward the gently inclined shape, so that the user can be promoted to have deep sleep. For example, the user may enter the deep sleep state more quickly. Thereby, a more comfortable sleep can be provided.
The
When the variation Δ S of the signal SS increases, the user often wants to turn over. At this time, the shape of the mattress 76 is controlled from the gently inclined shape toward the flat shape, and the body can be easily turned over. The burden on the user can be suppressed. Thereby, a more comfortable sleep can be provided.
Furthermore, the first action OP1 is implemented after the second action OP 2. Thus, for example, deep sleep can be promoted more quickly after turning over. These first action OP1 and second action OP2 are repeatedly performed. Thereby, high quality sleep can be provided.
The
As explained above, the signal SS includes a first signal state st1 and a second signal state st 2. For example, the first signal state st1 corresponds to rapid eye movement sleep. The second signal state st2 corresponds to non-rapid eye movement sleep. When the signal SS is in the first signal state st1 closest to the time t1 before the predetermined time t1, the
For example, before the prescribed time t1, a rapid eye movement sleep state closest to the time t1 occurs. Thereafter, even if the variation Δ S of the signal SS becomes small, the
Thereby, the user can wake up comfortably. For example, during rapid eye movement sleep closest to the prescribed time t1, the mattress 76 may wake up because it is flat.
In the third action OP3, the shape of the mattress 76 may be reversed (the shape in which the head 77a is lower than the waist 77b) according to the state (or preference) of the user. In this case, the head of the user is inclined more downward than the torso. The shape of the mattress 76 in the third action OP3 may be changed according to the user's condition (age, health condition, preference, etc.).
As shown in fig. 8(b), the
In the embodiment, for example, the
In the above example, the heights of the plurality of portions at different positions in the vertical direction of the mattress 76 are changed in accordance with the variation Δ S of the signal SS corresponding to the biological signal. The vertical direction is a direction connecting the head and the leg, and corresponds to the X-axis direction in fig. 6. For example, in the above example, the pressures of the plurality of portions (inside the plurality of air cells 76a) at different positions of the mattress 76 in the vertical direction are changed in accordance with the variation Δ S of the signal SS.
In the embodiment, the plurality of air cells 76a may be arranged in the left-right direction (Y-axis direction in fig. 6). In the embodiment, the heights of the plurality of portions at different positions in the left-right direction may be changed in accordance with the variation Δ S of the signal SS corresponding to the biological signal. In the embodiment, the pressure of the plurality of portions (the plurality of air cells 76a) at different positions in the left-right direction may be changed in accordance with the variation Δ S of the signal SS corresponding to the biological signal.
The electric furniture 320 (see fig. 6) of the present embodiment includes the
In the above example, the sleep state of the user is estimated from the biological signal, and the shape of the mattress 76 is controlled corresponding to the sleep state. In the embodiment, the posture of the user (such as a supine position, a prone position, or a lateral position) may be estimated. The shape of the mattress 76 may be controlled based on the estimation result of the posture of the user.
In the above example, the shape of the mattress 76 is controlled based on the bio-signal of the user. The firmness of the mattress 76 may also be controlled based on a user's bio-signal. At least any of the shape and stiffness of the pillow can also be controlled based on the bio-signal of the user. For example, the user has preferences regarding the shape or firmness of the mattress 76. Any of the shape and hardness of the mattress 76 may be controlled according to the preference. For example, the user has a preference regarding the shape or stiffness of the pillow. Any one of the shape and the hardness of the pillow can be controlled according to the preference.
Hereinafter, an example of a flowchart of the electric furniture according to the present embodiment will be described.
Fig. 9 is a flowchart illustrating an operation of the electromotive furniture according to the second embodiment.
For example, the
Then, steps S211, S212, and S217 are performed. These steps are, for example, the same as those described in relation to fig. 5.
As shown in fig. 9, it is determined whether the variation Δ S of the signal SS is equal to or less than the threshold value (step S213). If the variation Δ S of the signal SS is not equal to or less than the threshold value, the process returns to step S211.
When it is determined in step S213 that the variation Δ S is equal to or less than the threshold, the height of the waist 77b is brought close to the head 77a (step S614). For example, the mattress 76 is made substantially flat. The steps S213 and S614 correspond to the sleep operation OPs, for example.
Then, step S101 and step S102 are performed. These steps are, for example, the same as those described in relation to fig. 5.
As shown in fig. 9, a signal SS corresponding to the biological signal is acquired (step S110). Further, for example, it is determined whether or not the variation Δ S of the signal SS is reduced (step S111).
When the variation Δ S decreases, the height of the waist portion 77b is relatively lowered with respect to the head portion 77a (step S512). For example, the mattress 76 is substantially flat. Thereafter, for example, return is made to step S101. Steps S111 and S512 correspond to the
In step S111, when the variation Δ S is not decreased, it is determined whether the variation Δ S is increased (step S121). For example, whether the variation Δ S increases is determined using a threshold value related to the increase in the variation Δ S.
In step S121, if the variation Δ S is not increased, the variation Δ S substantially does not change. At this time, the process returns to step S101.
In step S121, when the variation Δ S increases (that is, when the variation Δ S is large, the first signal state st 1), it is determined whether or not the first signal state st1 is the first signal state st1 closest to the predetermined time t1 before the time t1 (step S131).
In step S131, when the time t1 is closest (in the case of "No"), the height of the waist 77b is made to be close to the height of the head 77a (step S522). For example, the mattress 76 is made substantially flat. Then, for example, return is made to step S101. Steps S131 and S522 correspond to the second operation OP2 described above. By means of the second action OP2, for example, it is possible to easily turn over.
In step S131, if it is determined that the first signal state st1 is the first signal state st1 closest to the time t1 before the time t1, at least one of the height of the waist 77b and the height of the head 77a is changed (step S532). For example, the mattress 76 is made substantially flat. Alternatively, the shape of the mattress 76 may be reversed. Thereby, the user can be awakened comfortably.
In the present embodiment, the procedure may be switched within the technical scope. For example, step S111 and step S121 may be switched to each other. In this case, step S512 and step S522 are switched in conjunction with each other.
(third embodiment)
In the present embodiment, the temperature of the electric furniture is controlled based on the signal SS corresponding to the biosignal. For example, as described with reference to fig. 1, a temperature control unit 73b (e.g., a heater) may be provided as the controlled unit 70C. The temperature control unit 73b is provided at a position corresponding to the foot of the user, for example. An example of changing the temperature of the temperature control unit 73b based on the signal SS corresponding to the biological signal will be described below.
Fig. 10(a) and 10(b) are schematic views illustrating the operation of the electromotive furniture according to the third embodiment.
The horizontal axis of these figures is time tm. The vertical axis of fig. 10(a) shows the variation Δ S of the signal SS. In this case, the signal SS also includes a plurality of states (e.g., a first signal state st1 and a second signal state st 2). In this case, the variation Δ S of the signal SS in the second signal state st2 is smaller than the variation Δ S of the signal SS in the first
The vertical axis of fig. 10(b) represents the temperature Tm of the electric furniture 320. In this example, the temperature Tm is the temperature of the temperature control unit 73 b. The
For example, the user's body temperature is lower when the user is sleeping than when the user is awake. By controlling the temperature of the electric furniture corresponding to the state of the user, a more comfortable sleep can be provided for the user.
The
For example, the second action OP2 is implemented when the difference between the first signal state st1 and the second signal state st2 is smaller than a certain value (threshold). In the second operation OP2, for example, the temperature Tm of the electric furniture 320 (for example, the temperature control unit 73b) is increased. Thereby, a more comfortable wake-up can be provided for the user.
When the controlled unit 70C includes the illumination unit 73a (see fig. 1), the
At least one of the brightness and the color of the display unit (or the certificate) of the
In a third embodiment, the signal SS further comprises information relating to at least any one of the user's respiratory rate and heart rate. The signal SS may also include information related to the motion of at least any one of the user's arms, body, and feet. The signal SS may also comprise information relating to the turning of the user. The signal SS may also comprise a signal relating to the number of turns of the user.
Several examples of the sensor 62 will be described below.
Fig. 11(a) and 11(b) are schematic views illustrating an electric furniture according to an exemplary embodiment. Fig. 11(a) is a schematic perspective view illustrating the sensor 62 and the arrangement of the sensor 62. Fig. 11(b) is a schematic top view illustrating the sensor 62. In fig. 11(a), the components are drawn separately from each other for easy viewing of the drawing.
As shown in fig. 11(a), in the electromotive furniture 340, a
As shown in fig. 11(b), the sensor 62 includes a circuit portion 62a and a sensor portion 62 b. The circuit section 62a includes a communication section 62 c. The communication unit 62c transmits and receives data to and from the
The sensor portion 62b includes, for example, a sensor device 62 d. The sensor portion 62b detects the force (or a characteristic corresponding to the force) received by the sensor portion 62 b. For example, the force includes at least any one of pressure and sound waves. The sensor portion 62b includes, for example, a pressure sensor. The sensor portion 62b includes, for example, a microphone.
The sensor unit 62b applies a force (at least any one of pressure and sound waves) of the user 81 via the mattress 76. For example, a signal based on the force detected by the sensor 62b is output from the circuit 62 a. The output signal is supplied to the
Further, at least either the
For example, vibration corresponding to the state of the user 81 is applied to the sensor portion 62 b. For example, the vibration is responsive to body motion of the user 81. The vibration is detected in the sensor portion 62 b. The vibration may also include sound.
For example, a vibration detection unit (sensor unit 62b) and a processing unit (at least a part of at least one of circuit unit 62a and control unit 42) are provided. The processing unit includes, for example, a computer. The vibration detection means detects, for example, vibration of a person (user 81) lying on bedding (bed portion 70B). The processing unit includes, for example, an activity amount calculation unit, a sleep determination value calculation unit, and a sleep state determination unit. These units are functionally differentiated. The activity amount calculation means calculates the activity amount of the bedridden person for each sampling unit time, for example, based on the vibration detected by the vibration detection means. The sleep determination value calculation unit calculates, for example, a sum of a value obtained by multiplying an activity amount at a first time (for example, a current time) and an activity amount calculated at a second time (for example, a time before the current time) by a correction coefficient weighted according to time as a sleep determination value. The sleep state determination means determines, for example, a wake-up state when the sleep determination value exceeds a predetermined threshold, and determines a sleep state in other cases.
Fig. 12(a) to 12(d) are schematic views illustrating another electric furniture according to the embodiment.
Fig. 12(a) is a cross-sectional view of an example of the sensor 62. Fig. 12(b) is a plan view of an example of the sensor 62. Fig. 12(c) is a perspective view illustrating the arrangement of the sensor 62. Fig. 12(d) is a side view illustrating the configuration of the sensor 62.
As shown in fig. 12(a), in this example, the sensor 62 includes a first plate 62p and a second plate 62 q. The second plate 62q is opposed to the first plate 62 p. The plate bodies may also be sheet-like.
The second plate body 62q includes a support protrusion 62 s. The support projection 62s faces the outer edge of the first plate 62 p. The first plate 62p includes an inner portion inside the outer edge portion. An air container 62r is provided between the inner side portion and the second plate 62 q. In this example, a groove 62t is provided in the second plate 62 q. An air container 62r is provided in a space (divided space) formed by the groove 62 t. One end of the signal line 62u is connected to the air container 62 r. The other end of the signal line 62u is connected to a detection circuit 62v (detection means).
As shown in fig. 12(b), the support projection 62s faces a part of the outer edge of the first plate 62 p. In this example, the support protrusions 62s are provided at four corners of the first plate body 62 p. The sensor 62 is sheet-like or plate-like.
As shown in fig. 12(c), the sensor 62 is placed on the
For example, a force corresponding to the movement of the body of the user 81 is applied to the air container 62 r. The force comprises, for example, vibration. The detection circuit 62v detects a force (or a characteristic corresponding to the force) applied to the air container 62 r. 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 62 v. 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 62 v. For example, the output (signal) of the detection circuit 62v is supplied to the
The sensor 62 is, for example, a biological information collection device. In the sensor 62, for example, the first plate 62p is disposed on the body side of the user 81. The second plate 62q is provided on the support side, for example. A deformable air container 62r for detecting the air pressure is provided between the center portions of the first plate 62p and the second plate 62 q. A groove 62t for attaching the air container 62r is provided in the center of the second plate 62 q. The support projection 62s projects in a direction from the second plate 62q toward the first plate 62 p. The support projections 62s support four corners of the periphery of the first plate body 62 p. The support projection 62s always supports the first plate 62p in a horizontal state (normal state), for example.
In embodiments, the sensor 62 may be variously modified.
In the embodiment, the
For example, the brightness of the illumination section 73a may be changed (including on/off, for example) based on the state of the user 81 detected by the sensor 62 (at least one of rising, sitting (for example, a bed getting ready state), getting out of bed, falling asleep, sleeping, and waking up). For example, the direction of light emitted from the illumination unit 73a may be changed based on the state of the user 81 detected by the sensor 62. The illumination portion 73a includes at least one of a ceiling lamp, a reading lamp, and a leg lamp, for example. The illumination section 73a includes arbitrary illumination of the room where the user 81 is located. For example, when the variation of the signal SS (detection signal) decreases, the illumination unit 73a is controlled. For example, the illumination unit 73a may be dimmed when the variation in the signal SS (detection signal) is reduced. It is possible to provide electric furniture which can improve the convenience of use. It is possible to provide electric furniture capable of providing a more comfortable sleep.
For example, the temperature of the temperature control unit 73b may be changed (for example, on/off may be included) based on the state of the user 81 detected by the sensor 62. The temperature control unit 73b may control the temperature around the electric furniture (for example, the temperature of the room where the user 81 is located). It is possible to provide electric furniture which can improve the convenience of use. It is possible to provide electric furniture capable of providing a more comfortable sleep.
Fig. 13 is a schematic perspective view illustrating another embodiment of the electromotive furniture.
As shown in fig. 13, the powered furniture 330 is a powered seat. The electromotive furniture 330 includes a
In the embodiment, when the
In the above embodiments, the state of the user 81 may also include getting up, getting out of bed ready state (e.g. end seat), getting out of bed, falling asleep, sleeping, waking up or getting up.
In fig. 5 and 9, the acquisition of the signal SS corresponding to the biological signal may be performed before the determination of whether or not the operation is not performed (step S212). For example, the signal SS may be acquired periodically, and the process may proceed to steps S213 and subsequent steps based on the result of step S211.
It has been reported that when the floor angle θ is 3 degrees or more and less than 12 degrees, it is effective for the treatment of orthostatic hypotension, for example. For example, it has been reported that airway obstruction is more difficult by back elevation than in a horizontal supine position, and therefore, in obstructive sleep apnea syndrome, the breathing state during sleep is improved by sleeping in a back elevation state.
For example, when the upper surface of the bottom plate 71 (bed) is flat (for example, the first angle θ 1), it is considered that the body is likely to turn. On the other hand, when the floor 71 (back
As described above, in the first embodiment, in the first operation OP1, for example, when the variation Δ S of the signal SS decreases, the floor angle θ is increased from the
In a first embodiment, for example, the first action OP1 is implemented after the second action OP 2. Thereby, for example, after turning over, the user 81 can be prevented from entering an apnea state and waking up halfway. These first action OP1 and second action OP2 are repeatedly performed. Thereby, high quality sleep may be provided.
As described above, in the second embodiment, for example, when the variation Δ S of the signal SS decreases, the shape of the mattress 76 is controlled to a gently inclined shape. This improves the breathing state of the user 81 while sleeping. For example, the user 81 may be prevented from becoming apneic and waking up halfway. Thereby, a more comfortable sleep can be provided.
In the second embodiment, for example, the first action OP1 is implemented after the second action OP 2. Thereby, for example, after turning over, the user 81 can be prevented from entering an apnea state and waking up halfway. These first action OP1 and second action OP2 are repeatedly performed. Thereby, high quality sleep can be provided.
In the above embodiment, as described above, the inclination of the
In an example of the embodiment, the
As described above, the signal SS corresponds to at least one of the respiratory rate, the heart rate, and the body movement. The variation Δ S of the signal SS may correspond to at least one of the respiratory rate, the heart rate, and the body movement, for example. The pulse rate may also be considered to be substantially the same as the heart rate.
An example of the sleep onset operation OPs (for example, fig. 4(b)) will be described below.
In one example, the user 81 or the like operates the
The
In another example, the falling asleep action Ops may also start at a set time. For example, a time switch is set. For example, when a specific time is set and the time is reached, the
Hereinafter, several examples of the "sleep mode" including the determination of the "sleep" and the sleep operation OPs will be described.
Fig. 14 is a schematic view illustrating an operation of the electromotive furniture according to the embodiment.
Fig. 15 is a schematic view illustrating an operation of the electromotive furniture according to the embodiment.
In fig. 15, the horizontal axis represents time tt.
As shown in fig. 14, for example, control device 160 (or control unit 42) has a standby state (step ST 00). The
After the transition to the sleep mode M01, the
In the sleep onset detection operation HS0, the time at which the user 81 is determined to be in the sleep state is set as the first time t01 (see fig. 15). As shown in fig. 15, the control unit 42 (or the detection unit 60) performs an operation Dc0 of determining whether or not the user 81 is in a sleep state. The time at which "the user 81 is in the sleep state" is determined to correspond to the
As shown in fig. 14, for example, the
For example, as shown in fig. 15, the
The first sleep onset operation HS1 in the
As shown in fig. 14, when the variation in the biosignal satisfies the predetermined condition (first variation condition) (step ST21), the
For example, as shown in fig. 15, after the second time t02, a predetermined time D1 elapses. After the predetermined time D1 has elapsed, the
In one example, the lengths of the first period p11 and the first preceding period p10 may be 10 seconds to 5 minutes.
In the above example, in the operation determination (step ST21) as to whether or not the variation in biosignal satisfies the predetermined condition (first variation condition), the variation Δ S of the signal SS between the first period p11 and the period before the first period p11 in the first sleep onset operation HS1 is evaluated. As described later, various modifications are possible based on the determination of the first variation condition. As described later, for example, the change Δ S of the signal SS in the first period p11 in the first sleep onset operation HS1 may be evaluated and determined based on the evaluation result. When the variation in the biosignal satisfies the predetermined condition (first variation condition) (step ST21), the second sleep onset operation HS2 is performed.
In the second sleep onset operation HS2, the
In step ST26, an operation such as reducing the inclination by a predetermined amount and reducing the difference by a predetermined amount is performed. After step ST26, the second falling asleep action HS2 is stopped (step ST27 of fig. 14).
As described above, in the embodiment, for example, in the first sleep onset operation HS1, when the variation Δ S satisfies the first variation condition, the
As shown in fig. 14, when the variation Δ S does not satisfy the first variation condition in the first sleep onset operation HS1 (step ST22), the process proceeds to step ST27, and the second sleep onset operation HS2 is not performed (steps ST25 and ST 26). For example, in the first sleep onset operation HS1, when the absolute value (or the difference value) of the difference between the variations Δ S exceeds the first variation threshold and the variation Δ S in the first period p11 is larger than the variation Δ S of the first preceding period p10, the
In the first sleep onset operation HS1, if the variation Δ S satisfies the first variation condition (step ST21), it is estimated that the sleep of the user 81 is deep, for example. On the other hand, in the first sleep onset operation HS1, when the variation Δ S does not satisfy the first variation condition (step ST22, etc.), it is estimated that the sleep of the user 81 is shallow. When it is estimated that the sleep of the user 81 is deep, the second sleep-in operation HS2 described above is performed, and the user 81 can be suppressed from being woken up by the second sleep-in operation HS 2.
In one example of the embodiment, the control operation (for example, the second sleep onset operation HS 2) may be performed when the floor angle θ in the sleep onset detection operation (step ST10) is 0 degrees or more and 30 degrees or less. For example, when the floor angle θ in the sleep onset detection operation (step ST10) is less than 0 degree (negative angle) or greater than 30 degrees, the control operation (for example, the second sleep onset operation HS2 or the like) may not be performed even if the mode is switched to the sleep onset mode M01. When the floor angle θ is such an angle, the control action (for example, the second falling asleep action HS2 or the like) is not performed, so that the sense of incongruity can be further alleviated.
As shown in fig. 14, in the first sleep onset operation HS1, when the detected signal SS does not satisfy the predetermined condition (step ST23), the first sleep onset operation HS1 may be continued (step ST 20). For example, in the case where the signal SS is a heart rate, the average value of the heart rate is calculated by consecutive three heart rates. For example, in step ST23, when the detected heart rate is two or less, return is made to step
On the other hand, for example, in step ST21, when the difference between the average heart rate of the first period p11 (see fig. 15) and the average heart rate of the first preceding period p10 (see fig. 15) is less than 5 times/minute, the operation transitions to the second sleep onset operation HS2 (step ST 25). In this case, the first variation threshold is 5 times/minute.
In the embodiment, for example, the angle of inclination that decreases at a time is set small. For example, the difference between the angle of the
For example, in one change of the floor angle θ, the change speed of the floor angle θ in the "start period" may be slower than the change speed of the floor angle θ in the "subsequent period" after the "start period". For example, in the case of one change of the floor angle θ, the change speed of the floor angle θ in the "subsequent period" may be faster than the change speed of the floor angle θ in the "subsequent period". The motion may be slow at the beginning and end of the motion.
In one example, the time from step ST25 to step ST27 is, for example, 1 second or more or 3 seconds or less.
When one second input operation HS2 (control action to decrease the inclination or the like) ends, the control action is stopped (step ST 27). After the threshold time (for example, about 60 seconds) has elapsed after the stop (step ST28), the operation returns to the first sleep onset operation HS1 (step ST 20). For example, the second first sleep onset action HS1 is performed (step ST 20).
In one cycle (steps ST20 to ST27), in steps ST21 to ST23, the sleep state of the user 81 is detected. When it is estimated that the sleep of the user 81 is deep, the second sleep onset operation HS2 (control operation such as inclination reduction) is performed (steps ST25 and ST 26). The control degree (degree of decrease in inclination, etc.) in one control operation is set to be small. Such a cycle is repeated. That is, as shown in fig. 15, the first sleep onset operation HS1 and the second sleep onset operation HS2 may be repeated. An example in which the first falling asleep action HS1 and the second falling asleep action HS2 are repeatedly performed will be described later.
When the above steps ST20 to ST27 are repeated, for example, the
In the embodiment, if an operation of releasing the sleep mode M01 is received (step ST43), it is also possible to return to the standby state (step ST 00).
In the sleep onset detection operation (step ST10), if an operation of releasing the sleep onset mode M01 is received (step ST41), the state may be returned to the standby state (step ST 00). In step ST20, if an operation to release the sleep mode M01 is received (step ST42), it is also possible to return to the standby state (step ST 00).
In the falling sleep detection operation (step ST10), if at least one of the wake-up and the out-of-bed of the user 81 is detected (step ST31), the falling sleep detection operation HS0 may be continued (step ST 10). In step ST27, if at least one of waking up and getting out of bed of the user 81 is detected (step ST33), the operation may also return to the sleep onset detection operation HS0 (step ST 10). In the sleep onset detection operation (step ST10), if the user 81 is detected to be out of bed and a predetermined time has elapsed, the state may be returned to the standby state (step ST 00).
As described above, the first sleep onset operation HS1 and the second sleep onset operation HS2 may be repeated. For example, as shown in fig. 15, after the first predetermined time D1 elapses, the determination operation Dc2 in the first sleep onset operation HS1 is performed for the first time as described above. For example, by the determination operation Dc2, for example, the second sleep-in operation HS2 is performed. Then, the second first fall asleep action HS1 is performed. After the lapse of the second predetermined time (time D2), the determination operation Dc2 in the second first sleep onset operation HS1 is performed. In this determination operation Dc2, the following first difference is evaluated. The first difference is, for example, a difference between the signal SS in the second period p21 and the signal SS in the second preceding period p20 before the second period p 21. Alternatively, the first difference may be, for example, a difference between the signal SS in the second period p21 and the signal SS in a period (for example, the first period p11) before the second period p 21. Based on the result of the first difference, the second determination action Dc2 is performed.
Based on the result of the second determination operation Dc2, the second sleep-in operation HS2 is performed for the second time, and when a third predetermined time (time D3) has elapsed, the determination operation is further performed, and the third first sleep-in operation HS1 is performed.
In the third determination operation, the following second difference is evaluated. The second difference is, for example, a difference between the signal SS in the third period p31 and the signal SS in the third preceding period p30 before the third period p31 in the third first sleep
In this way, the sleep state of the user 81 is detected, and when the sleep of the user 81 is deep, the second sleep-in operation HS2 (control of the back) is performed by a small amount. This can suppress the user 81 from being awakened by the second sleep operation HS 2. By repeating the above-described cycle, for example, the
In the second operation OP2 (inclination reduction), the above steps ST20 to ST27 may be performed.
As described above, the second angle θ 2 is, for example, 3 degrees to 10 degrees. When the transition is made to the first sleep onset operation HS1 (step ST20), the inclination of the floor 71 (floor angle θ) may be set to the second angle θ 2. When the floor 71 (back
In another example of the embodiment, as shown in fig. 15, in the sleep onset detection operation HS0, the variation Δ S of the signal SS corresponding to the biological signal of the user 81 may be evaluated in two consecutive periods (the period p _ M, the preceding period p (M-1), and the like) between the first time t01 and the
As described above, in another example of the embodiment, the transition from the sleep onset detection operation HS0 to the first sleep onset operation HS1 may be made based on the degree of stability of the signal SS in the sleep onset detection operation HS0, in addition to the elapsed time after the
In this example as well, the
In this case as well, in the second falling asleep operation HS2, the
In this case as well, the sleep state of the user 81 is detected, and when the sleep of the user 81 is deep, the second sleep-in operation HS2 (control of the back) is performed by a small amount. This can suppress the user 81 from being awakened by the second sleep operation HS 2.
In this example, the previous period may be a period in the first sleep
Fig. 16 is a schematic diagram illustrating an operation of the electromotive furniture according to the embodiment.
In the example shown in fig. 16, similarly, at the second time t02, the
As shown in fig. 16, after the second time t02, a predetermined time D1 elapses. After the predetermined time D1 has elapsed, the
For example, in the case where the signal SS is a heart rate, in the first period p11, it is detected that the heart rate within the prescribed range has been continuously calculated three times. Based on the result, the
As shown in fig. 16, after the predetermined time D2 has elapsed after the determination operation Dc2, the
As shown in fig. 16, after the predetermined time D3 has elapsed after the determination operation Dc3, the
In this way, after the determination action Dc2, the determination action Dc3 may be repeated a plurality of times. By the plural determination operations Dc3, for example, the inclination of the
The above determination operation is repeated a plurality of times, corresponding to the processing of step ST20 to step ST27 in fig. 14, for example. In the multiple repetitions, for example, the "change in biological signal" and the "first change threshold" in step ST21 may be changed. In the example of fig. 16, in the first determination, the variation Δ S of the signal SS in the first period p11 is compared with a predetermined value. Then, in the second and subsequent determinations, the variation Δ S between the corresponding period and the period before the corresponding period is compared with a predetermined value.
According to the embodiment, it is possible to provide electric furniture capable of improving ease of use when falling asleep.
The reference numerals in the figures are as follows.
15 … … cable, 20 … operation receiving section, 42 … control section, 43 … acquisition section, 48 … storage section, 60 … detection section, 62 … sensor, 62a … circuit section, 62B … sensor section, 62C … communication section, 62d … sensor device, 62p … first plate, 62q … second plate, 62r … air container, 62s … support projection, 62t … slot, 62u … signal line, 62v … detection circuit, 70 … movable section, 70B … bed section, 70C … controlled section, 70a … back bottom plate, 70B … knee joint bottom plate, 70C … leg bottom plate, 70d … head bottom plate, 70g … small face section, 70h … height changing section, 70p …, 70q … seat, 3671 bottom plate, 72 drive section, 72 a … lighting section, 42B … temperature control section, … air chamber … control section, … a …, … B … control section, …, 76b … pump unit, 76c … cable, 76d … mattress operation section, 76e … cable, 76f … mattress drive section, 77a … head, 77b … waist, 77c … foot, 81 … user, Δ S1, Δ S2 … change, Δ t12 … elapsed time: θ … floor angle, θ 1 to θ 2 … first to third angles, 160 … control device, 310, 320, 330, 340 … electric furniture, D1, D2, D3 … time, Dc0, Dc1, Dc2, Dc3 … determination action, H1, HR … height, HS0 … falling asleep detection action, HS1, HS2 … first and second falling asleep actions, M2 … falling asleep mode, OP2 … to OP2 … first to third actions, OPs 2 … falling asleep action, SC 2 … control signal, SM 2 … signal, SS 2 … signal, Tm 2 … temperature, mt2 … first to third time, mt2 … first and second mattress state, p _ (M-1) 2 … preceding time, p _ M2 … time, p2 … first to third time, p2 …, p t2 …, p2 …, t time, t2 …, t time, t2 …, t time 2 …, t time.
For example, the embodiments may also include the following structural (e.g., technical) solutions.
(Structure 1)
An electric furniture, comprising a control unit which shifts to a first sleep-in operation at a second time when an elapsed time from a first time when sleep of a user of the electric furniture is detected is equal to or greater than a first time threshold, wherein the control unit performs a second sleep-in operation when a variation of a signal corresponding to a biological signal of the user in a first period in the first sleep-in operation is smaller than the variation in a first preceding period before the first period in the first sleep-in operation or when an absolute value of a difference between the variation in the first period and the variation in the first preceding period is smaller than a first variation threshold, and wherein the control unit performs an operation of reducing an inclination of a bottom plate of the electric furniture, an operation of reducing a difference between a height of a head of a mattress of the electric furniture and a height of a waist of the mattress, and a control unit which controls the control unit to perform a control operation of controlling the electric furniture in the second sleep-in operation, And at least one of the operations of reducing the difference between the pressure of the head and the pressure of the waist.
(Structure 2)
An electric furniture, comprising a control unit that shifts to a first sleep-in operation at a second time after a first time when a user of the electric furniture is detected to sleep, wherein a state of the second time when the user sleeps satisfies at least one of a first condition and a second condition, wherein the first condition is satisfied when an elapsed time from the first time to the second time is equal to or longer than a first time threshold, wherein the second condition is satisfied when an absolute value of a difference between changes in a signal corresponding to a biological signal of the user in two consecutive periods between the first time and the second time is smaller than the second condition threshold, and wherein the absolute value of a difference between the changes in a first period in the first sleep-in operation is smaller than the changes in a period before the first period, or the changes in the first period and the changes in the period before the first period are smaller than a second condition threshold And a control unit that performs a second sleep-in operation when the threshold value is varied, wherein the control unit performs at least one of an operation of reducing a tilt of a bottom plate of the electric furniture, an operation of reducing a difference between a height of a head portion of a mattress of the electric furniture and a height of a waist portion of the mattress, and an operation of reducing a difference between a pressure of the head portion and a pressure of the waist portion in the second sleep-in operation.
(Structure 3)
The electromotive furniture piece according to structure 2, wherein the preceding period is in the first sleep mode.
(Structure 4)
The electromotive furniture piece according to claim 2, wherein the preceding period is between the first time and the second time.
(Structure 5)
The electromotive furniture piece according to any one of
(Structure 6)
The electromotive furniture according to any one of
(Structure 7)
The electromotive furniture according to any one of
(Structure 8)
The electromotive furniture piece according to any one of
(Structure 9)
The electromotive furniture piece according to any one of
(Structure 10)
The electromotive furniture piece according to any one of
(Structure 11)
The electromotive furniture according to any one of
(Structure 12)
The electromotive furniture piece according to any one of
(Structure 13)
The electromotive furniture piece according to any one of
(Structure 14)
An item of electrically powered furniture as claimed in any of
(Structure 15)
The item of electrically powered furniture as claimed in any of
(Structure 16)
The electromotive furniture piece according to any one of
(Structure 17)
The item of electrically powered furniture as claimed in any of
(Structure 18)
The electromotive furniture piece according to
(Structure 19)
The electromotive furniture piece according to
(Structure 20)
The electromotive furniture piece according to any one of
According to the embodiment, the electric furniture capable of improving the usability 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, the specific configurations of the elements such as the control unit, the acquisition unit, the movable unit, the base plate, and the mattress included in the electric furniture are included in the scope of the present invention, as long as the same effects can be obtained, by appropriately selecting the elements from known ranges and implementing the present invention in the same manner.
Any combination of two or more elements in each embodiment within the technical scope of the present invention is also included in the scope of the present invention as long as the combination includes the gist of the present invention.
Further, all electric furniture obtained by appropriately changing the design and implementation of electric furniture based on the electric furniture described above as the embodiment of the present invention also fall within the scope of the present invention, and it is sufficient if the gist of the present invention is included.
Further, various modifications and alterations may occur to those skilled in the art within the scope of the idea of the present invention, and it should be understood that these modifications and alterations also fall within the scope of the present invention.
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