| In recent years, embedded system has been used in many fields such as industry, agriculture, education, national defense, scientific research and daily life. The combination of the embedded system and fuzzy control leads to a task to develop a control system, which has function of the data collecting, processing, storing and displaying. It can also be networked easily and of low cost. The research has an important meaning and a bright prospect of being used widely.This paper shows all the software of an embedded temperature and humidity control system based on uCLinux. The operating system is uCLinux and the graphic user interface is MiniGUI, and control rule is fuzzy control method. The system's function is collecting, controlling, displaying, storing and transmiting real time data. Its friendly GUI can change the control line and the control rule according to user's need. The main contents of the paper are:Firstly, we make a detailed analysis on the development of embedded system and the primary work of this project. Then we introduce hardware of this system and the scheme of measurement and control principle.Secondly, we introduce the construction of the system as a whole, including the operating system uCLinux and applied software.Thirdly, MiniGUI is analyzed in detail, including its principle and important function. How to transplant MiniGUI to the embedded system is the key point.At last, the implement method to software is the most importart part. The technical details of GUI programming are described.Because of the strong transplanting capability, this system can collect and control several types of analog signals, and its application will be wider and wider. |
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