Patent ID: 8775363

Claim:
A method comprising: receiving a sensor log, wherein each entry in the sensor log has at least one timestamp; identifying a first set of entries in the sensor log having a predefined sequence of sensor identifiers, the first set of entries defining a velocity event for a human subject in an in-home environment; calculating an in-home gait velocity for the velocity event based on an initial timestamp in the velocity event, a final timestamp in the velocity event, and a fixed distance between sensors corresponding to the initial and final timestamps; identifying a second set of entries in the sensor log having a sensor identifier that corresponds to a dwell sensor mounted in a doorway, a rising edge timestamp comprising a time indicative of an entrance into a vicinity of the dwell sensor, and a falling edge timestamp comprising a time indicative of an exit from the vicinity of the dwell sensor, individual entries of the second set of entries defining a dwell event for the human subject in the in-home environment; and calculating an in-home dwell time for the dwell event based on the rising and falling edge timestamps.