Graphical energy information display system having a menu for user selection of energy related information for an AC load control device
US6289267A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1998 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Mar 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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; and menu 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.