Control method for greenhouse climate based on temperature integration

In recent years, horticulture industry has been rapidly developed in China. The total area of cultivation is about 3.79 million hm2 by the end of 2012, but the climate control methods in actual greenhouse production are still relatively simple. Although many of the advanced intelligent control algorithms have been studied, however, there are two problems of these intelligent algorithms: the first one is the intelligent algorithms depend on the model of the greenhouse at the time of the operation. The second problem of intelligent algorithms is a large number of calculations are performed; the requirement is high for greenhouse controller's processing capability and computing capability. In order to solve this problem, the greenhouse climate control method based on temperature integration was studied. It can be seen by the results that the temperature integration algorithm has used only 64.43% of the energy but is able to achieve the same effect compared with the static set point method.