Graphical energy information display system having a menu for user selection of energy related information for an AC load control device

• US 6,289,267 B1
• Filed: 03/19/1998
• Issued: 09/11/2001
• Est. Priority Date: 03/19/1998
• Status: Expired due to Term

• Current Assignee: Siemens Industry Incorporated (Siemens AG)
• Original Assignee: Siemens Energy & Automation Incorporated (Siemens AG)
• Inventors: King, William A., Alexander, James O., Leone, David A.
• Primary Examiner(s): Black, Thomas
• Assistant Examiner(s): CHEUNG, MARY DA ZHI WANG
• Application Number:
  US09/044,452
• Time in Patent Office: 1,272 Days
• Field of Search: 700/286, 700/291, 700/297
• US Class Current: 700/286
• CPC Class Codes: G01R 19/2513 Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
• CPC Class Codes: H01H 2071/006 Provisions for user interfaces for electrical protection devices
• CPC Class Codes: H02H 3/00 Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems H02H7/00; systems for change-over to standby supply H02J9/00 ; integrated protection for motors H02H7/0822
• CPC Class Codes: H02H 3/04 with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned watching of pilot wires H02H1/0084; protection of protective arrangements H02H7/008; indication of the state of electronic switches H03K17/18

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.

Claims

1. 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.

2. A graphical energy information display system according to claim 1, wherein said menu means displays said indicia on said graphical display device in a hierarchical format.

3. A graphical energy information display system according to claim 1, wherein said menu selection means comprises a user selectable keypad input for scrolling through said indicia displayed by said menu means onto said graphical display device, thereby enabling a user to select and view the said at least one parameter of the AC electrical load usage of a load.

4. A graphical energy information display system according to claim 3, wherein said user selectable keypad input comprises a touch input keypad.

5. A graphical energy information display system according to claim 3, wherein said user selectable keypad input comprises a touch input device overlaid onto said graphical display device.

6. A graphical energy information display system according to claim 1, wherein said graphical display device comprises an LCD display.

7. A graphical energy information display system according to claim 6, wherein said LCD display is at least 128 pixels square.

8. A graphical energy information display system according to claim 1, wherein said graphical display device comprises an Electrofluorescent display.

9. A graphical energy information display system according to claim 1, wherein the graphical display device simultaneously produces multiple corresponding power related signals representing the same parameter for a plurality of different indicia of the AC electrical load usage.

10. A graphical energy information display system according to claim 1, wherein the graphical display device essentially simultaneously produces graphic images of the processed signals representing voltage and current by signal representations, and harmonics and phase balance in a histogram format.

11. A graphical energy information display system according to claim 10 wherein said graphical display device comprises an Electrofluorescent display.

12. A graphical energy information display system according to claim 10, wherein the graphical display device simultaneously produces multiple corresponding signal representations representing the same parameter for a plurality of different indicia of the AC electrical load usage.

13. A graphical energy information display system according to claim 10, wherein the graphical display device simultaneously produces graphic images of the processed signals representing voltage and current by signal representations, and harmonics and phase balance in a histogram format.

14. 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 to monitor 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 to monitor 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 waveform;

menu structure to display 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;

menu selection structure to select at least one of said plurality of selections so as to cause said graphical display device to graphically present the power related signal representing said at least one parameter of the AC electrical load usage associated with said selections; and

a circuit protective device to interrupt electrical power to the load responsive to said at least one parameter of the AC electrical load usage.

15. A graphical energy information display system according to claim 14, wherein said circuit protective device is a circuit breaker.

16. A graphical energy information display system having a menu for user selection of energy related information for an AC load control device, comprising:

a circuit protective device for interrupting electrical power to a load;

first means for monitoring AC electrical load usage of a load comprising a first means for controlling said circuit protective device and a second means for producing a plurality of signals representative of at least one of a current, a voltage and a power related characteristic of the load, the second means for producing a plurality of signals including 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;

menu means for displaying a plurality of indicia on a graphical display device, each of said plurality of indicia representing at least one parameter of the AC electrical load usage;

menu selection means for selecting at least one of said plurality of indicia so as to cause the graphical display to graphically present said at least one parameter of the AC electrical load usage associated with said indicia; and

a graphical display device connected to said means for monitoring AC electrical load usage and adapted so as to graphically display at least one parameter of the AC electrical load usage of the load as a signal representation, said graphical display device comprising an energy information means connected to said second means for receiving and processing and storing said plurality of signals and for producing graphics related output image signals, and a display means connected to said energy information means and adapted to receive said graphics related output image signal for producing graphic images in a combination of waveform and histogram which are viewable by the user.

17. A graphical energy information display system according to claim 16, wherein said graphical display device comprises an LCD display.

18. A graphical energy information display system according to claim 16, wherein said LCD display is at least 128 pixels square.