Efficient distributed control of light-emitting diode array lighting systems

作     者：Dong, Jianfei Pandharipande, Ashish 

作者机构：Philips Res NL-5656 AE Eindhoven Netherlands 

出 版 物：《OPTICS LETTERS》 (光学快报)

年 卷 期：2012年第37卷第14期

页      面：2910-2912页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：optical control decentralised control letter Standard components local controller Rendering diode array DESIGN CRITERIA LIGHTING SYSTEMS Light emitting diodes Computer algorithms 

摘      要：We consider illumination rendering with distributed control of a lighting system with an array of light-emitting diodes (LEDs). As low-cost microprocessors become standard components in LED drivers, distributing the computation of the control signals to individual LED drivers becomes attractive. Common distributed control algorithms require each individual controller to exchange information with all the others and process it. This incurs too large a communication and processing overhead for a low-cost local controller. In this Letter, we propose a distributed control algorithm for achieving global illumination rendering, wherein a controller only needs to communicate within a selected neighborhood. We present design criteria for defining the communication neighborhood and study its impact on rendering performance. (C) 2012 Optical Society of America