Methods and systems to determine a context of a device

摘要

Methods and systems for determining that a device is currently within a given context are described. A device may include multiple sensors coupled to the device. A sensor utility value combining a rate of power consumption for a sensor and an accuracy score indicating a degree to which the sensor may provide outputs indicative of the device being currently in the given context may be determined for each sensor. Based on sensor utility values, the multiple sensors coupled to the device may be ranked. A sensor may be identified based on a ranking of the sensor. A probability associated with a determination that the device is currently within the given context may be assigned to the sensor. More sensors may be identified to determine with increasing probability and increasing power requirements that the device is currently within the given context.