Novel calculating method of mass function and its application

A novel calculating method of the mass function based on the fuzzy set is put forward. According to the characteristics of the fault diagnosis and health diagnosis of electrical device, the membership functions are obtained. By using the membership functions, the mass functions are obtained, and then by using the Dempster-Shafer evidential theory, the information fusion is carried out. In the end, we use the above methods in the health diagnosis system of the mine hoister. The diagnosis result indicates that these methods can improve the accuracy and reliability of health diagnosis of the mine hoister effectively.