Research Of Expert System On EMC For Household Electric Appliances

Electromagnetic Compatibility (EMC) is across-disciplinary science based on electromagnetism including information science, electrical engineering, electronics, communications, materials and structures, etc. It is also an applied technology, which is used to study, under the conditions of limited space, limited time and limited frequency resources, the compatibility of electrical and electronic devices and systems within the common electromagnetic environment without a degradation of performance. The study range of EMC is very extensive and the problem of EMC is very complex. The purpose of researching EMC is to create a preferable electromagnetic environment for the electrical and electronic devices running in order, limited the devices electromagnetic disturbance and unproved the level of immunity, finally aim to designing and producing the products which fulfilled the demand of EMC.Currently, the knowledge of EMC is desiderated to be popularized, the problems of EMC for household electric appliances are desiderated to be solved. So the related knowledge, experience of experts ,rules and standards of EMC are integrated into a knowledge base. Furthermore, an expert system on EMC for household electric appliances will be established. It helps to prevail the knowledge of EMC, and also, it guides the user to design and to produce their products coincide with the demands of EMC. The research of expert system on EMC for household electric appliances will help to improve the EMC level of household electric appliances in our country.Firstly, the theory of EMC and ES are introduced, and it is very meaningful to introduce ES into dealing with the EMC problem. Secondly, the design of knowledge base and the implement of reference engine are introduced. The design of knowledge base is the core of this paper, the knowledge base has been divided into five parts based on the need of difference users, which includes EMC brief introduction, EMC standard, EMC test, the products design of EMC, the EMC analysis of household electric appliances. Finally, introducing the implement of expert system on EMC for household electric appliances, it is designed into C/S model, supported by RDBMS SQL Server 2000, and using Delphi7 to realize the program design.