The Design And Realization Of Soybean Disease Diagnosis With Expert System

Soy bean is widely sown due to its good quality and high adaptability. Soy bean has a long history of being cultivated in our country, and has good economic and ecological benefits. China is one of the largest countries for the planted soy bean area. In Heilongjiang soy bean plays an important role in daily life of farmers and agricultural technicians. However, soy bean disease not only reduces its yield and edibility, but also finally causes certain harm through direct or indirect interactions with animals and human beings. Therefore, the study of an expert system for diagnosing soy bean disease has a very significant meaning for improving bean yield as well as income of farmers.Based on the characteristics of soy bean diseases,semiautomatic knowledge acquirement was selected as the knowledge acquirement; meanwhile traditional knowledge expression approach was chosen to express knowledge in this system. In the process of creating diagnosis base for soy bean diseases, literature search was integrated applied, and the database of soy bean diseases and the database of reasoning knowledge were constructed with Access 2003. In the area of reasoning mechanics, an integrated approach of combining with forward and reverse reasoning were used in this system. Based on soft project principle, database technique and expert system principle, the design and realization of diagnosis module,search module,management module,print module and help module in the bean disease diagnosis expert system was completed.Soy bean on all sorts of collections of diseasea information and knowledge, the soy bean disease diagnosis expert system was designed and realized.