Study And Application On Case-based Reasoning Fault Diagnosis For Satelite

Case-Based Reasoning(CBR), fault diagnosis technology is a problem solving method in the field of artificial intelligence,the method can be applied in the field of satellite fault diagnosis,to improve the ability of diagnosis of satellite fault and promote the development of satellite fault diagnosis technology. In this paper, the case in the diagnosis of key technologies, such as case search technology,case similarity calculation method,and putted forward design carried on the thorough research,the main research content is summarized as follows:The search for cases and similarity calculation were studied. Designing is suitable for hierarchical organization,case stratified index mechanism conforms to the diagnosis reasoning process,suitable for complicated structure characteristics of satellite system. Analyzing the adjacent function similarity calculation method and combining with some actual problems existing in the engineering application of optimizing calculation method,the principle and method of choosing the similar case,and on the basis of the established model of satellite fault diagnosis based on case-based reasoning.The reasonable design of satellite fault putted forward. In widely collected and build on the basis of satellite fault case database, according to the characteristics of large and complex satellite system, puts forward the resolving method of multistage putted forward system was established, and further expounds the multistage putted forward the system design principle,system composition,case search and system implementation,maintenance,etc.,make the satellite fault diagnosis method based on case-based reasoning is more suitable for the engineering practice and application.Finally, based on the case representation,case reuse and case modification and case study analysis and research,combining with the fault diagnosis process, build the module of software system,puts forward using programming language to complete the satellite fault diagnosis system based on case-based reasoning of software development,and has good application prospect.