Energy efficient location detection
AssigneeMicrosoft Corporation
InventorsAman Kansal, Brian D. Cross, Gerardo Garcia
Life of this patent
Estimating the term…
Abstract
In a device, one or more low energy sensors are used to determine a mobility state of the device. Based on both the mobility state of the device and one or more places of interest for the device, a determination is made as to when to use a high energy sensor to determine a location of the device. One of the one or more places of interest for the device within which the device is located at any particular time can be determined based on the mobility state of the device and/or the location of the device as determined by the high energy sensor.
Claims20
A method in a device, the method comprising:
- using, at the device, one or more low energy sensors to determine a mobility state of the device;
- and
- determining, based on both the mobility state of the device and one or more places of interest for the device, when to use a high energy sensor to determine a location of the device.
One or more computer storage media having stored thereon multiple instructions that, when executed by one or more processors of a device, cause the one or more processors to:
- receive data from one or more low energy sensors;
- determine, based on the data, a mobility state of the device;
- and
- determine, based on both the mobility state of the device and one or more places of interest for the device, when to use a high energy sensor to determine a location of the device.
A method of implementing a location estimation system in a device, the method comprising:
- receiving data from one or more low energy sensors, each of the one or more low energy sensors using less than a threshold amount of energy to provide data for use by the location estimation system;
- determining, at the device, a mobility state of the device based on the data, the mobility state of the device being one of multiple different states, the multiple different states including a stationary state, a pedestrian state, and a vehicle state;
- and
- determining, based on both the mobility state of the device and how close the device is to a perimeter of at least one of one or more places of interest for the device, when to use a high energy sensor to determine a location of the device.
Dependencies are inferred from the claim text.