Method and system for analyzing motion transferred to a subject on a sleeping surface
First Claim
Patent Images
1. A method of measuring a transfer of motion to a subject on a mattress comprising:
- supporting the mattress on a foundation;
positioning the subject on a surface of the mattress at a first location;
moving the surface of the mattress at a second location apart from the first location; and
measuring a displacement of a place on the subject relative to a reference location in response to the motion excited at the second location.
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Abstract
A method and system for analyzing the transfer of motion to a subject on a sleeping surface. A mattress is positioned on a frame, and a subject is positioned on the mattress. A sensor is placed in communication with the subject. The surface adjacent the subject is moved by means of a moving mass, and the sensor detects the motion of the subject. Motion transferred to the subject as a result of the mattress moving is measured and recorded.
65 Citations
22 Claims
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1. A method of measuring a transfer of motion to a subject on a mattress comprising:
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supporting the mattress on a foundation;
positioning the subject on a surface of the mattress at a first location;
moving the surface of the mattress at a second location apart from the first location; and
measuring a displacement of a place on the subject relative to a reference location in response to the motion excited at the second location. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A motion analysis system for measuring transfer of motion to a subject positioned on a surface of a mattress at a first location, comprising:
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at least one sensor located at a place on the subject for measuring a displacement of the place on the subject relative to a reference location in response to the motion excited at a second location apart from the first location, the sensor producing a displacement value;
a processor connected to the sensor for receiving the displacement value and operative to compute a transferred motion value; and
a storage means for storing the transferred motion values for future recall. - View Dependent Claims (8, 9, 10)
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11. A method for detecting motion transfer between spaced-apart locations on a mattress surface, comprising:
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exciting a first motion on the mattress surface at a first location;
providing at least one displaceable surface on or above the mattress upper surface at a second location spaced apart from the first location;
providing a stationary surface that is unaffected by any movement; and
detecting a displacement of the at least one displaceable surface relative to the stationary surface that represents a movement transferred from motion at the first location. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A device for detecting motion transfer between spaced-apart locations on a mattress surface, comprising:
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an actuator exciting a first motion on the mattress surface at a first location;
at least one displaceable surface located on or above the upper mattress surface at a displacement location spaced apart from the first location; and
a detection device detecting a second motion of the at least one reference surface relative to a stationary reference location in response to the first motion. - View Dependent Claims (19, 20, 21, 22)
a source emitting optical radiation; and
detector receiving reflected or deflected optical radiation from the least one dispendle surface, wherein the detector produces a signal representative of the second motion.
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20. The device of claim 19, wherein the source is a laser.
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21. The device of claim 19, wherein the actuator comprises a roller which moves in a direction substantially parallel to the mattress surface towards and away from the second location.
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22. The device of claim 21, wherein roller is in form of a polygon.
Specification