Patent ID: 8533153
Filing Date: 2013-09-10
Classification: G06F,G06Q,H02J,Y02B,Y04S

Abstract:
1. A time-stamp oriented system associated with a home energy gateway (HEG) comprising: a plurality of data entry blocks, each data entry block corresponding to a time interval; and an internal database timing device configured to synchronize with an external real-time server, maintain accurate time in a database and re-synchronize with the external real-time server in the event of a loss of synchronization, wherein the timing device of said home energy gateway is configured to add time-stamped data entries to said database; and wherein the home energy gateway is configured to; process data indicating a loss of synchronization with the external real-time server; add at least one additional data entry to the database following a last data entry just prior to the loss of synchronization; re-synchronize the internal clock with the external real-time server; update the internal clock with real-time from the external real-time server; determine a time-corrected data entry block for data entries to the database following the re-synchronization; and shift the at least one additional data entry added to the database after the loss of synchronization by a number of data entry blocks to a data entry block just prior to a position of the time-corrected data entry block, wherein a gap in data entry between a position of the last data entry just prior to the loss of synchronization and a position of a next data entry after shifting of the at least one additional data entry identifies a period of lost time during a power failure.