Map-based adaptive sampling of orientation sensors for positioning
First Claim
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1. A method for adaptively adjusting orientation sensor sampling of a mobile device in a positioning system, the method comprising:
- determining a location of the mobile device;
determining a direction in which the mobile device moves;
determining an expected change in movement based on;
the determined location, andthe determined direction; and
adjusting, with a processing unit, a sampling rate of at least one orientation sensor of the mobile device based on the expected change in movement.
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Abstract
Techniques are provided for adaptively sampling orientation sensors in positioning systems based on location (e.g., map) data. Embodiments can enable a device to use location, direction, and/or location information to anticipate an expected change in motion. The embodiments can then identify and prioritize a number of sampling strategies to alter sampling rates of orientation sensors, and implement at least one strategy, based on priority.
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Citations
44 Claims
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1. A method for adaptively adjusting orientation sensor sampling of a mobile device in a positioning system, the method comprising:
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determining a location of the mobile device; determining a direction in which the mobile device moves; determining an expected change in movement based on; the determined location, and the determined direction; and adjusting, with a processing unit, a sampling rate of at least one orientation sensor of the mobile device based on the expected change in movement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A mobile device configured to adaptively adjust orientation sensor sampling for position determination, the mobile device comprising:
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at least one orientation sensor; a wireless communication interface; a memory; and a processing unit, communicatively coupled with the at least one orientation sensor, the wireless communication interface, and the memory, the processing unit configured to; determine a location of the mobile device; determine a direction in which the mobile device moves; determine an expected change in movement based on; the determined location, and the determined direction; and adjust a sampling rate of the at least one orientation sensor of the mobile device based on the expected change in movement. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A non-transitory computer readable medium having instructions stored thereon for causing a processing unit to:
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determine a location of a mobile device; determine a direction in which the mobile device moves; determine an expected change in movement based on; the determined location, and the determined direction; and adjust a sampling rate of at least one orientation sensor of the mobile device based on the expected change in movement. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A system for adaptively adjusting orientation sensor sampling of a mobile device in a positioning system, the system comprising:
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means for determining a location of the mobile device; means for determining a direction in which the mobile device moves; means for determining an expected change in movement based on; the determined location, and the determined direction; and means for adjusting a sampling rate of at least one orientation sensor of the mobile device based on the expected change in movement. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification