Patent ID: 8774827

Claim:
A power conservation process to update a position fix of a mobile location tracking device being tracked by a location tracking server, the power conservation process comprising: generating a current position fix by a GPS (Global Positioning System) acquisition device; comparing the current position fix relative to a zone management map of designated allowed and restricted location coordinate zones stored in a memory device associated with the mobile location tracking device; reporting the current position fix by a GPRS (General Packet Radio Services) transceiver device or a GSM (Global System for Mobile communications) transceiver device to the location tracking server; deactivating the GPS acquisition device, the GPRS transceiver device or the GSM transceiver device, and a computational processor in accordance with a subscriber service usage application and the current position fix relative to the zone management map of the designated allowed and restricted location coordinate zones; activating by an internal clock substantially independent of communicated signals from the location tracking server the GPS acquisition device, the GPRS transceiver device or the GSM transceiver device in accordance with the subscriber usage service application in response to a delta distance between the current position fix of the mobile location tracking device relative to the zone management map of the designated allowed and restricted location coordinate zones; starting a timer when the mobile location tracking device has passed a threshold into a restricted location coordinate zone; analyzing readings of the timer to determine how long the mobile location tracking device has entered the restricted location coordinate zone; updating the subscriber usage service application with a profile associated with an expected zone that is part of a location coordinate service library and previously communicated by the location tracking server during an SMS (Short Message Service) transmission; acquiring by the GPS acquisition device an updated current position fix in response to selection of the profile associated with the expected zone to account for GPS satellite displacement during measurement; updating a reporting frequency of the updated current position fix in response to selection of the profile associated with the expected zone to account for the GPS satellite displacement during measurement; and returning the GPS acquisition device to a deactivated mode in accordance with the profile associated with the expected zone until activated by the internal clock.