| 摘要 |
<p>The present invention relates to a lightening system and a controlling method to promote an acceleration of a growth and a qualitative improvement of a crop through an artificial light source besides the natural light source in a cultivation of the crop inside the greenhouse, and more particularly adjusting the light source in order to provide the optimum intensity of radiation through the artificial light source thereby making the optimal greenhouse environment. The present invention provides an effect to promote the acceleration of the growth more efficiently by using LED artificial light source in the greenhouse. Furthermore, the present invention calculates the accurate intensity of radiation which is needed for crop, and determines the suitable kind, brightness and irradiation time by facilitating the dimming control of the LED artificial light source, and getting the intensity of radiation through the intensity of illumination. Additionally, the present invention has the effect to save energy by reducing the use of electricity through the dimming control of the LED artificial light source.</p> |
