Real-time location and presence using a push-location client and server

摘要

A system for providing real-time always-on location is presented for maintaining the current location of a mobile device, while saving the battery by managing the GPS in a power-saving mode while the device is considered to be stationary. The system also provides a real-time location in an indoor environment where a GPS signal may not be available. Additionally, methods for driving detection are also presented.

主权项

1. A computer-implemented method, comprising:
determining, by a mobile device, whether the mobile device is stationary within specified thresholds based on data from a motion detection system of the mobile device; detecting, by the mobile device, whether the mobile device is stationary within the specified thresholds based on cell-ID, time advancing, or both; when the mobile device is determined to be stationary within the specified thresholds, putting the mobile device into a power-saving mode; and when the mobile device is determined to have a changed state and is not considered to be stationary within the specified thresholds,
activating, by the mobile device, a mobile positioning system, anddetermining, by the mobile device, a current location of the mobile device from the mobile positioning system to maintain the current location of the mobile device.