Distributed intelligence ballast system

• US 7,880,638 B2
• Filed: 04/01/2008
• Issued: 02/01/2011
• Est. Priority Date: 12/14/2004
• Status: Expired due to Fees

• Current Assignee: Lutron Technology Company LLC
• Original Assignee: Lutron Electronics Company Incorporated (Lutron Electronics)
• Inventors: Cash, Audwin W., Skvoretz, Matthew A., Anselmo, Robert, Veskovic, Dragan
• Primary Examiner(s): Vo; Tuyet Thi
• Application Number:
  US12/060,643
• Publication Number:
  US 20080185977A1
• Time in Patent Office: 1,036 Days
• Field of Search: 340/825.22, 340/825.21, 340/825.52, 315312-326, 315/292
• US Class Current: 340/4.3
• CPC Class Codes: H05B 41/38 Controlling the intensity of light
• CPC Class Codes: H05B 47/18 via data-bus transmission
• CPC Class Codes: H05B 47/199 Commissioning of light sources

Abstract

A ballast for use in a multi-ballast lighting system wherein the ballasts are coupled together by a digital communication network. The ballast comprises a power circuit portion for providing an electrical current to power a lamp. The ballast further includes a sensor input circuit for receiving at least one sensor input from a sensor device, a processor receiving an input from the sensor input circuit and providing control signals to control the operation of the ballast, and a communication port coupled to the processor and to the communication network for exchanging data. The ballast processor is operative to receive a serial data that has a portion defining whether the message is in a first or a second format, the first format comprising a DALI standard format and the second format comprising a format providing extended functionality. The ballast processor is capable of processing messages in either the first or second formats.

Claims

1. A method for configuring a ballast in a multi-ballast addressable lighting system wherein the ballasts interface with a communication link, the method comprising:

providing the ballast with at least a processor, sensor inputs and a communication port; and

installing the ballast for communication with the link and connecting a lamp to the ballast,

wherein the ballast is configured prior to the step of installing the ballast on the link in an out-of-box mode to automatically perform a step of seasoning the lamp connected to the ballast, the step of seasoning comprising;

operating the lamp at full power for a minimum amount of time prior to executing a command to dim the lamp; and

pausing the step of seasoning while the ballast is commissioned with at least an address, and resuming the step of seasoning for the remaining duration of the minimum amount of time after the commissioning is completed.

3. The method of claim 1, wherein the out-of-box mode of the ballast further allows the ballast to broadcast over the communication link sensor information from the sensor inputs received by the ballast and to receive messages broadcast over the link from remote devices coupled to the communication link.

2. A ballast in a multi-ballast addressable lighting system wherein the ballasts interface with a communication link, the ballast comprising:

a processor, memory, sensor inputs and a communication port, wherein the ballast is configured in an out-of-box mode prior to being installed on the link such that the ballast is adapted to automatically season a lamp connected to the ballast by operating the lamp at full power for a minimum amount of time prior to executing a command to dim the lamp,

wherein the ballast is further configured to pause seasoning the lamp while the ballast is being commissioned with at least an address and is further configured to resume seasoning for the remaining duration of the minimum amount of time after the ballast is commissioned.

4. The ballast of claim 2, wherein the out-of-box mode of the ballast further allows the ballast to broadcast over the communication link sensor information from the sensor inputs received by the ballast and to receive messages broadcast over the link from remote devices coupled to the communication link.