Title: Fault Detection
Description: Fault diagnosis technology is a synthetic technology, which relates to several subjects, such as modern control theory, reliability theory, mathematical statistics, fussy set theory, information handling, pattern recognition and artificial intelligence.
The United States is the first study to carry out fault diagnosis countries. Since 1961, the United States at the beginning of the implementation of the Apollo program, has witnessed a series by equipment failure led to the tragedy, therefore, in April 1967, at NASA’s the idea of, by the Office of Naval Research (ONR), opened the American Society of Mechanical Failure Prevention Group (MFPG) the establishment of the General Assembly, began to systematically fault diagnosis sub-topic for research. In addition to MFPG, the American Society of Mechanical Engineers (ASME), Johns Mitchel company, Spire Corporation are all carried out relevant research.
In Europe, the United Kingdom machine health centers in the late’60s began to study the initial diagnosis. In addition, the Norwegian ship diagnostic techniques, sound detection system in Denmark, Sweden, SPM’s bearing detection technology are all more advanced. Japan’s fault diagnosis technology in the steel petrochemical sectors such as railways developed rapidly, and in the international market certain advantages.
In 1971, Massachusetts Institute of Technology Beard in his PhD thesis was first put forward the concept of fault detection filter, which is to use analytical redundancy instead of hardware redundancy approach and make the system self-organization through the system closed-loop stability, through the observer output to be systems.
Fault diagnosis method based on analytical redundancy is to be diagnosed by an object exists in the analytical redundancy and other priori knowledge analysis and processing, enabling detection of fault diagnosis, isolation, identification. In the same year, Mehra and Peschon published relevant papers in Automatica, which marked the beginning of fault diagnosis. In 1976, Willsky published the first articles on fault detection and diagnosis technology, an overview of the article.
In 1978, Himmelblau published the first book on the international level fault detection and diagnosis (FDD) technology in academic works. Since then a lot of academic institutions, government departments, universities and enterprises are involved in or the fault diagnosis technology research, and made a large number of results.
Subjects: synthetic technology, mathematical statistics