Automated Optimization of Free-form Surface Lens for LED Collimation

Xiao-Xia, 罗晓霞 Luo; Hua, 刘华 Liu; Zhen-Wu, 卢振武 Lu; Lei, 荆雷 Jing; Yang, 姜洋 Jiang; Di, 辛迪 Xin

doi:10.3788/gzxb20114009.1351

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2013

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“…With the application of LED lighting technology in rail vehicle, the traditional lighting control mode has been unable to meet the needs of people, and it has not coordinated this new LED technology [1][2][3]. In order to achieve the advantages of green energy-saving features further and make these features to maximize, we study the mode of centralized control, and choose the mode of CAN bus communication [4][5], and design the control system to realize the function that rail vehicle LED lighting system intelligent automatic dimming according to the external environment.…”

Section: Introductionmentioning

confidence: 99%

Research on LED Lighting Control Method for Railway Vehicle Carriage

Zhang

Yin

Jiang

et al. 2013

AMR

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Because of the communication distance, the more nodes, the requirements of high real-time, LED lighting control system for railway vehicle carriage chooses Controller Area Network (CAN) as the communication mode to achieve centralized control in all carriages. Illuminance gathered from multi-sensors which were installed on the surface of the carriages was feed back to the Industrial Personal Computer (IPC). And then, through the incremental PID control algorithm, the IPC achieve the brightness of the lighting system intelligent control for vehicle consulting brightness intensity which according to the external environment. Experiment shows that this method is practical and effective.

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Section: Introductionmentioning

confidence: 99%