Design and application of intelligent control system for greenhouse environment based on CAN bus

An intelligent greenhouse control system based on CAN bus has been designed to meet the needs of vegetables greenhouse. Aiming at the characteristics including multi-parameters, time-delay, multi-disturbance and uncertain model structure, environmental factors model data processing as the same structure and the environmental parameters model designing in general rules are proposed in this paper. Independent parts such as main control cell and intelligent nodes compose a distributed control system by CAN bus. According to the change roll of temperature the system realized the human simulated intelligent control of regulation and management by using fuzzy controlling algorithm. Experimental results show that the designed greenhouse intelligent control system has many merits such as simple circuitry, stable performance, economy, convenience and versatility, and the agriculture greenhouse management level and the production quality are improved, so this system is worthy of spreading.