Dead reckoning using proximity sensors
First Claim
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1. A method comprising:
- collecting proximity data using a plurality of proximity sensors of the mobile device;
determining a position of the mobile device in relation to a user of the mobile device, the position determined using the proximity data;
determining a first geographic location of a mobile device using an absolute geographic location measurement; and
selecting a maximum allowed period of time from a plurality of maximum allowed periods of time, based on the position of the mobile device in relation to the user determined using the proximity data, to track the mobile device using a dead reckoning technique,wherein the dead reckoning technique comprises determining a second geographic location of the mobile device based, at least in part, on information indicative of displacement of the mobile device from the first geographic location; and
wherein each of the plurality of maximum allowed periods of time is associated with a different position of the mobile device in relation to the user.
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Abstract
Various arrangements for limiting inaccuracy of dead reckoning are presented. Proximity data may be collected using a plurality of proximity sensors of a mobile device. A position of the mobile device may be determined in relation to a user using the proximity data. Whether to determine a location of the mobile device using a dead reckoning technique may be determined at least partially based on the position of the mobile device in relation to the user.
17 Citations
38 Claims
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1. A method comprising:
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collecting proximity data using a plurality of proximity sensors of the mobile device; determining a position of the mobile device in relation to a user of the mobile device, the position determined using the proximity data; determining a first geographic location of a mobile device using an absolute geographic location measurement; and selecting a maximum allowed period of time from a plurality of maximum allowed periods of time, based on the position of the mobile device in relation to the user determined using the proximity data, to track the mobile device using a dead reckoning technique, wherein the dead reckoning technique comprises determining a second geographic location of the mobile device based, at least in part, on information indicative of displacement of the mobile device from the first geographic location; and wherein each of the plurality of maximum allowed periods of time is associated with a different position of the mobile device in relation to the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mobile device comprising:
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a plurality of proximity sensors; and a processor configured to; collect proximity data using the plurality of proximity sensors; determine a position of the mobile device in relation to a user of the mobile device, the position determined using the proximity data; determine a first geographic location of a mobile device using an absolute geographic location measurement; and select a maximum allowed period of time from a plurality of maximum allowed periods of time, based on the position of the mobile device in relation to the user determined using the proximity data, to track the mobile device using a dead reckoning technique, wherein the dead reckoning technique comprises determining a second geographic location of the mobile device based, at least in part, on information indicative of displacement of the mobile device from the first geographic location; and wherein each of the plurality of maximum allowed periods of time is associated with a different position of the mobile device in relation to the user. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A non-transitory computer-readable storage medium comprising processor-readable instructions, which, when executed by a processor, cause the processor to:
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analyze proximity data received from a plurality of proximity sensors; determine a position of a mobile device in relation to a user of the mobile device, the position determined using the proximity data; determining a first geographic location of a mobile device using an absolute geographic location measurement; and select a maximum allowed period of time from a plurality of maximum allowed periods of time, based on the position of the mobile device in relation to the user determined using the proximity data, during which to track the mobile device using a dead reckoning technique, wherein the dead reckoning technique comprises determining a second geographic location of the mobile device based, at least in part, on information indicative of displacement of the mobile device from the first geographic location; and wherein each of the plurality of maximum allowed periods of time is associated with a different position of the mobile device in relation to the user. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. An apparatus comprising:
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means for collecting proximity data on a mobile device; means for determining a position of the mobile device in relation to a user of the mobile device, the position determined using the proximity data; means for determining a first geographic location of a mobile device using an absolute geographic location measurement; and means for selecting a maximum allowed period of time from a plurality of maximum allowed periods of time, based on the position of the mobile device in relation to the user determined using the proximity data, to track the mobile device using a dead reckoning technique, wherein the dead reckoning technique comprises determining a second geographic location of the mobile device based at least in part on information indicative of displacement of the mobile device from the first geographic location; and wherein each of the plurality of maximum allowed periods of time is associated with a different position of the mobile device in relation to the user. - View Dependent Claims (33, 34, 35, 36, 37, 38)
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Specification