Indoor navigation with wearable passive sensors
AssigneeMitsubishi Electric Research Laboratories, Inc.
InventorsAndrew R. Golding, Neal B. Lesh
Life of this patent
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Abstract
A wearable device is configured for navigating in an indoor environment. The device includes passive sensors for measuring environmental physical conditions at known locations in the indoor environment and at an unknown locations in the indoor environment. A wearable computer is coupled to passive sensors. The computer is configured to construct a first statistical model of the environment according to the measured physical conditions at the known locations and a second statistical model of the environment according to the measured physical conditions at the unknown locations. Processing means of the computer determines a probability that the unknown locations correspond to the known locations by comparing the second statistical model to the first statistical model.
Claims11
A method for navigating in an indoor environment using a weareable computer device having a plurality of sensors, comprising the steps of:
- measuring a plurality of environmental physical conditions with passive sensors at a plurality of known locations in the environment;
- constructing a first statistical model of the environment according to the measured physical conditions;
- measuring the plurality of environmental physical conditions at unknown locations in the environment;
- constructing a second statistical model of the environment according to the measured physical conditions;
- determining a probability that the unknown location corresponds to any of the known locations by comparing the second statistical model to the first statistical model.
An apparatus for navigating in an indoor environment, comprising:
- a plurality of passive sensors for measuring a plurality of environmental physical conditions at a plurality of known locations in the indoor environment, and at an unknown location in the indoor environment;
- a wearable computer device coupled to the plurality of passive sensors configured to construct a first statistical model of the environment according to the measured physical conditions at the plurality of known locations and a second statistical model of the environment according to the measured physical conditions at the unknown locations;
- and
- means for determining a probability that the unknown location corresponds to one of the known locations by comparing the second statistical model to the first statistical model.
Dependencies are inferred from the claim text.