关键词: 人工神经网络, 专家系统, 葡萄病害诊断

Abstract: This paper designs a kind of grape diseases diagnosis expert system based on artificial neural network.Eighteen main kinds of grape diseases as research objects are taken.The expert knowledge of them is converted into diagnosis rules which would be imported to artificial neural network for training，and formed into inference engine.Additionally，the expert system consists of knowledge database，rules inference and artificial neural network.It improves the self-learning capability and system real-time ability of expert system.The system is implemented by C# language，Matlab and .NET programming technology.The experiment results show that the system has higher diagnostic accuracy than traditional expert system.Moreover，the system can be accessed through web browser which will be good for popularization of it.

Key words: artificial neural network, expert system, grape diseases diagnose