农机化研究
農機化研究
농궤화연구
JOURNAL OF AGRICULTURAL MECHANIZATION RESEARCH
2015年
3期
30-33,45
,共5页
MINIPAM%叶绿素荧光参数%动态补光%LED%双线间接调光法
MINIPAM%葉綠素熒光參數%動態補光%LED%雙線間接調光法
MINIPAM%협록소형광삼수%동태보광%LED%쌍선간접조광법
MINIPAM%chlorophyll fluorescence parameter%dynamic light-supplementing%LED%two-level indirect light-adjusting method
通过分析现有的自动调光方式，研究一种新的补光方法-双线间接调光法，并以完成此方法为基础设计了动态补光系统。该系统分上下两个控制系统：下级以单片机为核心， PWM 为控制方法，通过传感器测量光照强度直接调节LED 输出光强；上级以上位机为控制核心，通过 MINI-PAM 测量植物的叶绿素荧光参数来调节下级单片机中的光照阈值，从而间接控制 LED 输出光强。应用该系统对番茄苗期的生长状态进行测试和对照实验，取得了良好的效果。
通過分析現有的自動調光方式，研究一種新的補光方法-雙線間接調光法，併以完成此方法為基礎設計瞭動態補光繫統。該繫統分上下兩箇控製繫統：下級以單片機為覈心， PWM 為控製方法，通過傳感器測量光照彊度直接調節LED 輸齣光彊；上級以上位機為控製覈心，通過 MINI-PAM 測量植物的葉綠素熒光參數來調節下級單片機中的光照閾值，從而間接控製 LED 輸齣光彊。應用該繫統對番茄苗期的生長狀態進行測試和對照實驗，取得瞭良好的效果。
통과분석현유적자동조광방식，연구일충신적보광방법-쌍선간접조광법，병이완성차방법위기출설계료동태보광계통。해계통분상하량개공제계통：하급이단편궤위핵심， PWM 위공제방법，통과전감기측량광조강도직접조절LED 수출광강；상급이상위궤위공제핵심，통과 MINI-PAM 측량식물적협록소형광삼수래조절하급단편궤중적광조역치，종이간접공제 LED 수출광강。응용해계통대번가묘기적생장상태진행측시화대조실험，취득료량호적효과。
With the analysis of present automatic control supplementary lighting , an original supplementary lighting meth-od was invented , two-level indirect light-adjusting method .And the automatic control system of supplementary lighting was designed basis on the method .The system include upper control system and nether control system :the core of nether control system was MCU , which controlled PWM system to directly adjust the illumination of LED though light tested by the sensor .The upper computer adjusted the light threshold value in the MCU depend upon the chlorophyll fluorescence parameter tested by the MINI-PAM,and finally adjusted the illumination of LED indirectly .The test and compared ex-periments were finished after the system was accomplished , and the result was perfect .
