| With the development of modern agriculture, the strategy of developing precise agriculture has been popularized. A control system for modern agriculture which based on CAN bus and embedded operating system has been designed in this paper according to the idea. Which consists of sensors, central controller, and locale controllers. We mainly discuss the way to design a sensor based on CAN bus, analyze some fuzzy algorithms and at the same improve an algorithm in order to adapt to the control for large greenhouse, discuss the blocking design method for display, and, at the same time, analyze the configuration design method. This system involves in embedded operating technology, CAN bus technology, sensor technology, network technology, and display technology. It represents the development tendency of modern instrument, and can be used in medium and large greenhouse.
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