A control system of environment parameters of greenhouse group based on double CAN bus

A control system of environment parameters based on double CAN bus is designed according to the needs of monitoring and control of modern greenhouse group. The system is composed of upper PC, external CAN bus, outdoor weather elements and monitoring and control units of greenhouse. The monitoring and control unit of greenhouse is composed of several modules linked by inner CAN bus. CAN bus is used between PC and every greenhouse, anywhere in the communication line the monitoring and control unit of greenhouse is joined up, and it is suitable for concentrated group control of greenhouse on a large scale. The control module is designed with sealed moisture-proof and independently, by which equipment breakdown is reduced and the life is lengthened. Each module of greenhouse are connected by inner CAN bus, and the types and number of the modules can be increase or decrease freely, which facilitated data exchange and improved the flexibility of system. PC-software is developed by using Kingview, by which the development cycle is shorten and a friendly human-computer interface is gained.