Electrical control system

• US 8,598,991 B2
• Filed: 01/13/2006
• Issued: 12/03/2013
• Est. Priority Date: 08/24/2005
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Cooper Technologies Company (Eaton Corporation PLC.)
• Inventors: Fair, James, Malkowski, Mariusz, Goyal, Rahul
• Primary Examiner(s): BROWN, VERNAL U
• Application Number:
  US11/332,673
• Publication Number:
  US 20070046492A1
• Time in Patent Office: 2,881 Days
• Field of Search: 340/825.69, 340/825.72, 340/538, 340/539.1, 340/12.22, 340/12.32, 340/13.23, 340/13.24, 455/402
• US Class Current: 340/12.32
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 23/04 using light waves, e.g. infrared
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines

Abstract

An electrical control system includes one or more master nodes that are adapted to control and monitor the operation of one or more slave nodes. The master nodes and the slave nodes are operably coupled by one or more communication interfaces, such as radio frequency, Internet Protocol, power line, or other conventional communication interfaces. A hand-held radio frequency controller includes a controller that is operably coupled to an radio frequency transceiver. The controller includes an operating system and application programs, including a device engine, a scenes engine, an events engine, a system engine, and an away engine. The device engine, scenes engine, events engine, system engine and away engine permit a user of the hand-held radio frequency controller to customize the operation of at least some of the aspects of the master and slave nodes.

Claims

1. A control system, comprising:

one or more master nodes;

a plurality of slave nodes, wherein at least one of the slave nodes is configured as an in-wall mounted plug receptacle;

at least one radio frequency communication interface for sending and receiving radio frequency communication from the master nodes; and

at least one powerline communication interface for operably coupling the master and slave nodes and providing control communication between the master node and the slave nodes through a source of power for the slave nodes;

wherein the master node provides control communication and remotely controls the operation of the slave nodes by communicating through the source of power for the slave nodes.

2. The control system of claim 1, wherein the master node sends control communication to the slave node in a loop current of the source of power.

3. The control system of claim 2, wherein the control communication is sent from the master node to the slave node when a line voltage of the source of power has zero crossings.

4. The control system of claim 1, wherein the slave node sends control communication to the master node in a loop voltage of the source of power.

5. The control system of claim 4, wherein the control communication is sent from the slave node to the master node when a line voltage of the source of power has zero crossings.

6. The control system of claim 1, wherein the master node communicates to at least one other device via radio frequency communication with the radio frequency communication interface.

7. The control system of claim 1, wherein the source of power comprises a hot terminal and a neutral terminal and wherein control communication between the master node and the slave node is transmitted through the hot terminal and the neutral terminal.