Environmental control in the total production system using artificial intelligence and image processing technology

本研究主要得出以下结论：(1)在营养液栽培体系下，番茄植株叶片投影面积可作为高糖度番茄果实生产的灌溉指标。对于投影方向，以垂直方向为最佳。由太阳辐射和水汽饱和亏缺估算的累积蒸散速率也是一个有效的指标。(2)在水果贮藏过程中，以先升至高温（40℃）24h再降至最低温度的温度操作最有利于减少果实的水分流失、果皮颜色的变化和呼吸作用。(3)在图像处理的利用上，利用热像仪测得的表面温度差可以区分番茄植株的叶片和果实。利用CCD相机测得的色差可以区分成熟果实和未成熟果实。利用热成像仪测得的热图像和CCD相机测得的彩色图像可以有效地找出被叶子隐藏的果实。

The following results were made dear in this research.(1)Projection area of leaves of tomato plants is effective as an index of irrigation for the production of tomato fruit with high brix in the nutrient solution cultivation system. As for the direction of projection, vertical direction is the best. The accumulated evapotranspiration rate estimated from the solar radiation and water vapor saturation deficit is also an effective index.(2)As for the process of fruit storage, the temperature operation that first raises to the high temperature(40℃) fir 24h and then drops to the lowest temperature is optimal to reduce the water loss, the change of skin color and the respiration of fruit.(3)As for the utilization of image processing, the leaf and the fruit of the tomato plant can be distinguished by the difference of surface temperature measured by thermography. The mature fruit and the immature fruit can be distinguished by the color difference measured by CCD camera. To use both the thermal image measured by thermography and the color image measured by CCD camera is effective to find out the fruit bidden by the leaves.