基于LED的设施农业智能补光系统

LED Based Intelligent Light Supplement System for Facility Agriculture

光是植物生长过程中不可或缺的因素之一,人工补光可有效提高植物光合作用,促进农作物增产增收。现有LED补光系统在环境适宜性监测、光源控制和植物不同阶段需光量差异性考虑不足,造成红蓝光补光不足和补光过度并存。针对以上问题提出了一种设施农业智能补光系统,支持定义植物不同生长阶段的需光量,采用STC12C5A60S2单片机实时监测设施内环境温度和光强,并通过PWM信号控制红、蓝光LED补光灯亮度实现作物按需定量的智能补光。该系统已初步进行试用,证明该系统稳定可靠,可有效实现定量精确补光。

Light is one of the indispensable factors in plant growth process.Artificial light technology can enhance plant photosynthesis and increase crop production.The existing light supplement systems lack consideration on the environmental suitability,light source controlling and variation of light demand in each growth status,resulting in the coexistence of the deficiency of red and blue light as well as the excess of light supplement.In view of the above question,a intelligent light supplement system for facility agriculture is presented.Based on STC12C5A60S2 MSU to real-time monitor the temperature and light intensity,utilizing PWM signal to control the luminance of red or blue light,the system can satisfy the crop's different needs along its growth initial trial has already been done proving the stability and reliability of the system.