CAJ | 학술논문

由于现有温室补光系统未针对专家规则考虑植物不同阶段补光量的差异和自动实现分阶段按需定量补光，因此设计了基于专家规则的智能补光系统。系统以51单片机为核心，采用模块化设计，主要包括控制模块、电源模块、时钟模块、人机交互模块和检测模块。系统利用DS1302时钟芯片模块模拟阶段补光累积时间，根据用户设置的各阶段光强阈值和阶段信息，当植物生长进入下一阶段时，系统会依据用户的相关设置计算对应PWM 控制信号的占空比，并输出 PWM 控制信号，控制植物的补光量。实验证明，系统可对植物各阶段进行按需补光，避免了不同阶段补光不足和过量的问题，从而提高了能源利用率，也为研究光强对植物的影响提供参考。
유우현유온실보광계통미침대전가규칙고필식물불동계단보광량적차이화자동실현분계단안수정량보광，인차설계료기우전가규칙적지능보광계통。계통이51단편궤위핵심，채용모괴화설계，주요포괄공제모괴、전원모괴、시종모괴、인궤교호모괴화검측모괴。계통이용DS1302시종심편모괴모의계단보광루적시간，근거용호설치적각계단광강역치화계단신식，당식물생장진입하일계단시，계통회의거용호적상관설치계산대응PWM 공제신호적점공비，병수출 PWM 공제신호，공제식물적보광량。실험증명，계통가대식물각계단진행안수보광，피면료불동계단보광불족화과량적문제，종이제고료능원이용솔，야위연구광강대식물적영향제공삼고。
The existing greenhouse supplemented light system is not according to the rules of experts that consider differ -ent stages of plants demand for different quantity of light , realizing automatically in different stages to supplement light for demand of quantity , this paper designed intelligent light supplemented system based on rules of experts .This system re-gards the 51 single-chip microcomputer as the core part , and adopts the modular design , including the control module , power supply module , clock module , human and computer interaction module and detection module .The system utilized the DS1302 clock chip module to simulate accumulated time of supplemented light by stages , according to the user who sets the different stages of the light intensity threshold value and phase data , when the plants grow into the next stage , the system will be based on the user's related setting to calculate duty ratio of the corresponding PWM control signal , and output PWM control signal , then control the quantity of light for plants. It can be demonstrated by experiments that the system can supplement light by stages according to the demand of light , to avoid problem of deficiency and excess of light in different stages , so as to improve the energy efficiency , moreover , it will provide some support to the research in light intensity that impacts on plants .