Software Design of Supplemental Lighting Control System for Tomato Growth Based on MINIPAM

Detection by fluorescence-line closed-loop control of tomato growth.Based on MINIPAM fluorescence to dynamic control of tomato growth,the modulated pulse fluorescence detection system was designed on combination of LED array with different colors and light intensity.The system usd programmable power supply to control the combination of different color LED light sources.Then a continuous light and intermittent light,were controlled the red and blue light intensity combinations.The system's PC software usd DELPHI7 language.MINIPAM and programmable power supply communicate with the host computer through the serial port.Then it could achieve real-time online control on changes in the fluorescence parameters of tomato,and establish the growth models of different spectral mode of tomato.At last the best tomato growth state was gived.Tests showed that,the growth of tomato could in the best state under the system.It is conducive to the improvement of tomato production.It has a kind of widely used value to dynamic control crop growth systems.