The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Greenhouse temperature system is a typical hybrid system, on account of the inputs of the system include discrete state variables, namely switching status of the environmental control equipment, as well as continuous state variables, namely the external environment factors. Therefor this paper presents a hybrid automata for greenhouse system based on crop temperature integration theory. Firstly, the...
There are strong couplings between the environment system of greenhouse and the micro-environment growth system of crops in the greenhouse. Considering this problem and the development of control technologies, this paper designs a coordination control system to coordinate these two subsystems in order to promote the growth of crops. With multi-agent technology, the research effectively reduces the...
The purpose of this paper is to present an adaptive method based on fuzzy control for temperature control in the greenhouse. First of all, a mathematic model was constructed for the air temperature in the greenhouse. Then the corresponding fuzzy control system was implemented by using the Simulink tools of MATLAB. At last, fuzzy controller was realized using Visual Basic (VB) in the upper machine...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.