In-bed state detection system
First Claim
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1. An in-bed state detection system comprising:
- a load detection section adapted for placement between a bed and a floor on which the bed is placed for detecting a load applied to the bed and providing a corresponding load signal;
a determination section for determining an in-bed state based on the load signal; and
a transmission section for transmitting a result of the determination, wherein the determination section differentiates the load signal by time and determines the in-bed state based on an output intensity and temporal distribution of a signal resulting from differentiation of the load signal.
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Abstract
An in-bed state detection system includes: a load detection section for detecting a load applied to a bed and providing a corresponding load signal; a determination section for determining an in-bed state based on the load signal; and a transmission section for transmitting a result of the determination.
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Citations
11 Claims
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1. An in-bed state detection system comprising:
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a load detection section adapted for placement between a bed and a floor on which the bed is placed for detecting a load applied to the bed and providing a corresponding load signal;
a determination section for determining an in-bed state based on the load signal; and
a transmission section for transmitting a result of the determination, wherein the determination section differentiates the load signal by time and determines the in-bed state based on an output intensity and temporal distribution of a signal resulting from differentiation of the load signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
the transmission section includes an electromagnetic signal transmitter and an electromagnetic signal receiver, the electromagnetic signal transmitter being disposed on the bed, and the electromagnetic signal receiver being disposed at a location other than on the bed. -
4. An in-bed state detection system according to claim 1, wherein the in-bed state is at least one of a “
- fast asleep”
state, a “
lacking sleep”
state, a “
convulsive”
state, a “
frantic”
state, and a “
periodic strokes”
state.
- fast asleep”
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5. An in-bed state detection system according to claim 1, further comprising a central control unit for receiving the result of the determination transmitted from the transmission section and displaying the result,
the central control unit being disposed in a room other than a room in which the bed is placed. -
6. An in-bed state detection system according to claim 1, wherein said transmission section includes an electromagnetic signal transmitter and an electromagnetic signal receiver adapted to be disposed at spaced apart locations.
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7. An in-bed state detection system according to claim 1, wherein the determination section determines the in-bed state based on an amplitude and a frequency of the load signal.
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8. A bed having an in-bed state detection system comprising:
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a bed;
a load detection section between said bed and a floor on which said bed is placed for;
(a) detecting a load applied to said bed, and (b) supplying a load signal representative of the load applied to said bed;
a determination section for determining an in-bed state based on the load signal; and
a transmission section for transmitting a result of the determination, wherein the determination section differentiates the load signal by time and determines the in-bed state based on an output intensity and temporal distribution of a signal resulting from differentiation of the load signal. - View Dependent Claims (9, 10, 11)
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Specification