基于云平台的PWM智能LED补光方法研究  

PWM Intelligent LED Lighting System Research Based on the Cloud Platform

作　　者：田会娟[1,2] 柳建新[2,3] 洪振[2,3] 刘欢[2,3] 张辉[1,2] 郝甜甜[2,3] TIAN Huijuan LIU Jianxin HONG Zhen LIU Huan ZHANG Hui HAO Tiantian(Tianjin Key Laboratory of Advanced Electrical Engineering and Energy Technology School of Electrical Engineering and Automation Tianjin Polytechnic University, Tianjin 300387, China Engineering Research Center of High Power Solid State Lighting Application System, Tianjin 300387, China College of Electronics and Information Engineering Tianjin Polytechnic University, Tianjin 300387, China)

机构地区：[1]天津工业大学电气工程与自动化学院天津市电工电能新技术重点实验室,天津300387 [2]大功率半导体照明应用系统教育部工程研究中心,天津300387 [3]天津工业大学电子与信息工程学院,天津300387

出　　处：《照明工程学报》2017年第2期91-96,共6页China Illuminating Engineering Journal

基　　金：国家自然科学基金资助项目--室内照明用LED眩光效应研究及理论分析(编号:61504095);国家中小企业科技创新基金项目--高性能LED植物生长灯驱动电源关键技术研究(编号:16JCTPJC46600)

摘　　要：基于不同植物对环境光质、光强、光周期多种需求,本文提出了一种云平台远程监控和近距离无线动态LED调光方法。实现手机客户端设置环境红、蓝光照度阈值,利用脉冲宽度调制法(PWM),采用两块无线NRF24L01模块,经动态循环调节,使得环境的光照强度与设定阈值趋于一致,且红、蓝调光偏差分别在5 lx和1 lx以内,并同时实现对设施环境内温湿度实时监控。该方法具有植物补光位置与LED光源距离可调、调光精确高、操作简单、节省人力等优点,具有广泛的发展前景。Based on different plants to the needs of environmental light quality,light intensity,light cycle and various needs,we propose a cloud platform for remote monitoring and short-range wireless dynamic LED dimming approach. Mobile client realizes to set red and blue light illumination threshold,using pulse width modulation（ PWM）,making environmental light intensity and threshold tends to be consistent by the dynamic cycle regulation using two wireless NRF24L01 modules and red,blue light deviation respectively in less than 5 lx and 1 lx,Meanwhile,the real-time monitoring of temperature and relative humidity in the greenhouse. The system has distance adjustable between the plants fill position and LED light source,high precision,simple operation,saving manpower,etc,it has broad prospects for development.

关 键 词：LED 云平台 NRF24L01 PWM 智能控制 

分 类 号：TM923.34[电气工程—电力电子与电力传动]