Patent ID: 6289267
Filing Date: 2001-09-11
Classification: G01R,H01H,H02H

Abstract:
A graphical energy information display system having a menu for user selection of energy related information for an AC load control device, comprising:a device for monitoring AC electrical load usage of a load using a voltage shifter coupled to a sensor to bias the voltage above a ground potential by a predetermined voltage to produce a full-wave biased voltage signal;a graphical display device connected to said device for monitoring AC electrical load usage, said graphical display device adapted so as to graphically display indicia and at least one parameter of the AC electrical load usage of the load said parameters being displayed as a signal representation;menu means for displaying a plurality of selections on said graphical display device, each of said plurality of selections representing at least one parameter of the AC electrical load usage; andmenu selection means for selecting at least one of said plurality of selections so as to cause said graphical display device to graphically present the signal representing said at least one parameter of the AC electrical load usage associated with said selections.