Research And Application On Agricultural Expert System Platform Based On J2EE

Research of agricultural expert system has got rapid development and obtained a lot of production in China. However, With rapid development and prevalence of Internet, the early agricultural expert system platform designed in single computer environment could not be applied to Application on Network environment. New trend is to develop distributed network expert system research .The paper combined with the 'national 863 plan' project of 'Research and Application of Development Tool of Intelligent Agricultural Information System', tried to discuss some improvement about knowledge presentation method of 'multi-level knowledge unit' and designed new "multi-EJB" inference mechanism, the paper on the one hand to bring forward to apply Xml technology to knowledge presentation and to improve 'FKU','RKU' unit., and on the other hand to designed new "multi-EJB" inference mechanism based on J2EE technology.Whole paper is divided to into seven chapter, the first,second and third chapter introduce some basic knowledge about agricultural expert system, distributed object and J2EE. In the first half of the fourth chapter expound 'multi-level knowledge unit' method and the second half bring forward some improvement. Then, the paper use one chapter to explain design of "multi-EJB" inference mechanism .At last,the paper give a whole design of agricultural expert system platform base on J2EE.