Font Size: a A A

Research On Expert System Of Remote Fault Diagnosis Based On Fault Tree Analysis

Posted on:2008-10-24Degree:MasterType:Thesis
Country:ChinaCandidate:W W GuoFull Text:PDF
GTID:2178360212978879Subject:Computer Science and Technology
Abstract/Summary:PDF Full Text Request
With the use of new equipment in the military field, in order to maintain the performance of them, the money invested in testing and fault diagnosis on them increased highly and throughout the entire life cycle. Moreover, with the use of weapons and equipment of the third generation of information, the traditional fault diagnosis has been unable to meet current demands. Remote Diagnosis is a trend. Signal acquisition, signal processing, Fault Diagnosis Expert System for data transmission and remote fault diagnosis are the key issues which need to be resolved. Fault Diagnosis Expert System is the top priority. This paper studies the design and implementation of fault diagnosis expert system. The expert system is related to knowledge acquisition, knowledge representation and reasoning mechanisms to achieve such issues.The article starts by describing Remote Diagnosis Expert System Architecture and Construction of the expert system knowledge, explained in detail the various parts of the composition and functions of a fault tree analysis and expert system integration advantages. Then, the article highlights the fault tree analysis, fault tree analysis to the establishment of the FTA, Fault Tree pretreatment Fault tree analysis of the quantitative and qualitative analysis and quantitative analysis based on the fault tree for a detailed study of fault diagnosis, and the use of binary decision diagram fault tree analysis, the number of incidents in the end decided to change the rules of order .In this process of transformation, the order of the incident should follow these rules:(1) After making the fault tree simple, taking into account the number of cases of late. The more frequency has less priority.(2) Functions of the function, taking into account all the variables for each functions aggregate number. If a function is a function not available, then priority should be given.(3) Functions in the conversion process, the decision to use the first third of the decomposition of variables, If one will not contain any Functions decomposition of the moment, I will not biodegradable, so the next.Then, we study the fault tree expert system technology and the integration of them. For knowledge acquisition of expert system, we use a fault tree expert system technology to acquire the necessary knowledge. Establish the study of the fault tree is a process of detailed analysis of the system failure modes in the process and gain the...
Keywords/Search Tags:fault diagnosis, fault tree, expert system, binary decision diagram
PDF Full Text Request
Related items