System and method for the inference of activities of daily living and instrumental activities of daily living automatically
First Claim
1. An automated method of inferring an activity of daily living of a human subject, the method comprising:
- date and time stamping sensor readings from a plurality of sensors;
storing a computer-readable log of the date and time stamped sensor readings; and
a computer processor obtaining the stored date and time stamped sensor readings and applying a set of rules that analyze spatial-temporal relationships of multiple sensors'"'"' readings to automatically infer that the human subject has engaged in a predetermined activity of interest,wherein said spatial-temporal relationships are defined as sequences of said multiple sensors'"'"' readings and locations of said plurality of sensors, andwherein the computer processor inferring that the subject has engaged in the activity of interest includes the computer processor making an inference as to whether the subject has engaged in the activity of interest without assistance from another person.
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Accused Products
Abstract
A method and related system to, among other things, automatically infer answers to all of the ADL questions and the first four questions of the IADL in the home. The inference methods detect the relevant activities unobtrusively, continuously, accurately, objectively, quantifiably and without relying on the patient'"'"'s own memory (which may be fading due to aging or an existing health condition, such as Traumatic Brain Injury (TBI)) or on a caregiver'"'"'s subjective report. The methods rely on the judicious placement of a number of sensors in the subject'"'"'s place of residence, including motion detection sensors in every room, the decomposition of each relevant activity into the sub-tasks involved, identification of additional sensors required to detect the relevant sub-tasks and spatial-temporal conditions between the signals of sensors to formulate the rules that will detect the occurrence of the specific activities of interest.
31 Citations
20 Claims
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1. An automated method of inferring an activity of daily living of a human subject, the method comprising:
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date and time stamping sensor readings from a plurality of sensors; storing a computer-readable log of the date and time stamped sensor readings; and a computer processor obtaining the stored date and time stamped sensor readings and applying a set of rules that analyze spatial-temporal relationships of multiple sensors'"'"' readings to automatically infer that the human subject has engaged in a predetermined activity of interest, wherein said spatial-temporal relationships are defined as sequences of said multiple sensors'"'"' readings and locations of said plurality of sensors, and wherein the computer processor inferring that the subject has engaged in the activity of interest includes the computer processor making an inference as to whether the subject has engaged in the activity of interest without assistance from another person. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for inferring an activity of daily living of a human subject, the system comprising:
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a plurality of sensors disposed in different rooms of a living area; and a microprocessor configured to; receive multiple sensor readings from the plurality of sensors; store a time stamped log of the sensor readings; and apply a set of rules that analyze spatial-temporal relationships of multiple sensor readings to automatically infer that the human subject has engaged in a predetermined activity of interest, wherein said spatial-temporal relationships are defined as sequences of said multiple sensor readings and locations of said plurality of sensors, and wherein the microprocessor is further configured to infer whether the subject has engaged in the activity of interest without assistance from another person based on a historical analysis of motion detected prior to the activity of interest in a plurality of locations. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A computer program product comprising non-transitory computer readable storage medium having computer program logic that causes at least one processor in a computer system to perform operations including:
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date and time stamping sensor readings from a plurality of sensors; storing a log of the date and time stamped sensor readings; and applying a set of rules by a computer processor that analyze spatial-temporal relationships of multiple sensors'"'"' readings to automatically infer that the human subject has engaged in a predetermined activity of interest, wherein said spatial-temporal relationships are defined as sequences of said multiple sensors'"'"' readings and locations of said multiple sensors, and wherein the inference by the computer processor that the subject has engaged in the activity of interest includes an inference by the computer processor as to whether the subject has engaged in the activity of interest without assistance from another person based on a historical analysis of motion detected prior to the activity of interest in a plurality of locations. - View Dependent Claims (20)
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Specification