Non-contact activity sensing network for elderly care
First Claim
1. A method of determining a physical state of a person, comprising:
- detecting positions of different portions of the person;
transforming detected positions of the person into a point cloud having a density that varies according to movement of each of the portions;
correlating movement and position data from the point cloud with known physical state positions and transitions between different states, wherein each of the physical state positions is associated with particular point densities, sizes, orientations, centers of gravity, and dispositions of bounding boxes of the point cloud; and
choosing a particular physical state by matching the data from the point cloud with the particular physical state.
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Accused Products
Abstract
Determining a physical state of a person includes detecting positions of different portions of the person, transforming detected positions of the person into a point cloud having a density that varies according to movement of each of the portions, correlating movement and position data from the point cloud with known physical state positions and transitions between different states, and choosing a particular physical state by matching the data from the point cloud with the particular physical state. Positions of different portions of the person may be detected using a tracking device. The tracking device may be a non-contact tracking device. The tracking device may include at least one wide band radar. The tracking devices may communicate wirelessly with at least one server in a cloud computing system. The states may include walking, standing, sitting, laying down, turning in bed, falling, and/or departed.
12 Citations
28 Claims
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1. A method of determining a physical state of a person, comprising:
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detecting positions of different portions of the person; transforming detected positions of the person into a point cloud having a density that varies according to movement of each of the portions; correlating movement and position data from the point cloud with known physical state positions and transitions between different states, wherein each of the physical state positions is associated with particular point densities, sizes, orientations, centers of gravity, and dispositions of bounding boxes of the point cloud; and choosing a particular physical state by matching the data from the point cloud with the particular physical state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A non-transitory computer-readable medium containing software that determines a physical state of a person, the software comprising:
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executable code that detects positions of different portions of the person; executable code that transforms detected positions of the person into a point cloud having a density that varies according to movement of each of the portions; executable code that correlates movement and position data from the point cloud with known physical state positions and transitions between different states, wherein each of the physical state positions is associated with particular point densities, sizes, orientations, centers of gravity, and dispositions of bounding boxes of the point clouds; and executable code that chooses a particular physical state by matching the data from the point cloud with the particular physical state.
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Specification