Greenhouse climate control techniques in China and the setup of the control system for a chamber

This paper gives a brief review on the study and development status of the greenhouse control techniques in China. The three different control modes which are widely in use and the different hardware commonly adopted in greenhouse control system are discussed. As an example, a computer control system in a controlled environment chamber was introduced to illustrate the basic features and functions. And some key techniques relevant to the greenhouse control were put forward for future research by the authors at the end of the paper.