TIME COORDINATED ENERGY MONITORING SYSTEM UTILIZING COMMUNICATIONS LINKS

• Main Authors: HANCOCK, MARTIN A, RICCI, MARC, LIGHTBODY, SIMON H, CUMMING, DANIEL A, HARDING, STEWART J, WYNANS, ARTHUR B, HAIGHT, ERIC K
• Format: Patent
• Language: English; French
• Published: 14.05.2007
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SELECTING; TESTING

A method, system and device for synchronizing a time period over which ener gy measurements are accumulated for an energy monitoring system including a plurality of energy monitoring devices is described. The method comprises transmitting a first radio frequency packet from a time reference device via at least a first and a second of the plurality of energy monitoring devices to a third of the plurality of energy monitoring devices. The method further comprises adjusting a time register within the third energy monitoring device based on the reception of the packet. The method further comprises accumulating a measure of energy consumption by the third energy monitoring device of a load coupled with the third energy monitoring device. The method further comprises transmitting the measure of energy consumption from the third energy monitoring device via at least a fourth and a fifth of the plurality of energy monitoring devices to a data aggregation device. The method further comprises identifying by the data aggregation device an aggregate measure of energy consumption consumed by the load over the time period.