DEDUCED RECKONING NAVIGATION WITHOUT A CONSTRAINT RELATIONSHIP BETWEEN ORIENTATION OF A SENSOR PLATFORM AND A DIRECTION OF TRAVEL OF AN OBJECT
First Claim
1. A method, comprising:
- receiving signals from a sensor platform physically coupled to an object;
generating world coordinate information based on the signals; and
estimating, based on the world-frame coordinate information, a direction of travel of the object irrespective of the orientation of the sensor platform relative to the object.
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Accused Products
Abstract
Systems, methods, and apparatus for performing deduced reckoning navigation without a constraint relationship between orientation of a sensor platform and a direction of travel of an object are described herein. A sensor fusion component can be configured to receive data from sensors of a sensor platform coupled to a pedestrian; and generate world coordinate information based on the data. Further, a gait recognition component can be configured to record one or more walking patterns of the pedestrian in a training database; and determine whether the world coordinate information is associated with a walking pattern of the one or more walking patterns. Furthermore, a position estimation component can be configured to estimate a position of the pedestrian based on the world coordinate information if the world coordinate information is associated with the walking pattern, regardless of an orientation of the sensor platform with respect to the position of the pedestrian.
25 Citations
20 Claims
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1. A method, comprising:
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receiving signals from a sensor platform physically coupled to an object; generating world coordinate information based on the signals; and estimating, based on the world-frame coordinate information, a direction of travel of the object irrespective of the orientation of the sensor platform relative to the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system, comprising:
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a sensor fusion component configured to; receive data from sensors of a sensor platform coupled to a pedestrian; and generate world coordinate information based on the data; a gait recognition component configured to; record one or more walking patterns of the pedestrian in a training database; and determine whether the world coordinate information is associated with a walking pattern of the one or more walking patterns; and a position estimation component configured to; estimate a position of the pedestrian based on the world coordinate information if the world coordinate information is associated with the walking pattern, regardless of an orientation of the sensor platform with respect to the position of the pedestrian. - View Dependent Claims (11, 12, 13, 14, 15, 17, 18)
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16. The system of clam 10, wherein the sensor fusion component, the gait recognition component, and the position estimation component are included in an integrated circuit.
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19. The system of clam 16, wherein the position of the pedestrian is transmitted to a display device via a wireless protocol.
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20. An apparatus, comprising:
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means for combining information received from different sensors of a sensor platform physically coupled to an entity; means for converting world-frame data of the combined information into p-frame data; means for correlating the p-frame data with profiles of the entity moving with the sensor platform; and means for estimating a direction of travel of the entity based on the means for correlating the p-frame data with the profiles, irrespective of an orientation of the sensor platform with respect to the entity.
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Specification