The Research And Implementation Of IETM For Equipment Maintenance Assistant

With the development of informatization,the generation of Interactive Electronic Technical Manual(IETM)has overcame the shortcomings of the traditional paper manual which is not easy to access and inconvenient.However,most of IETM systems are only single electronic technical manual which have no integrated maintenance assistance and training functions,and they can not provide troubleshooting measures quickly and accurately when there is a fault.Therefore,IETM system that catered to equipment maintenance assistant has a very important research significance in the fault maintenance field,which provides a reliable guarantee for use and maintenance of equipment.In this research,by using the GJB6600 standard,the design and implementation of the IETM system for equipment maintenance assistance is presented,which is based on the combination of the fault maintenance assistant technology and IETM.The main contents of this paper are as follows:(1)By the analysis and comparison of the current international popular IETM standards,and combined with the requirements of the project,the GJB6600 standard suitable for the present system was selected.On the basis of the research of fault diagnosis system type and fault tree theory,the type of fault diagnosis system was established,which provides a theoretical basis for realizing the design of fault tree.(2)For the issues of fault tree graphics drawing,the fault tree technology based on Visio two development was studied.The C#language was used to design and develop drawing application program of Visio control fault tree.Which made it possible for the fault tree's drawing,editing,preservation,and display by Web browser.Users only need to drag and drop through the mouse to complete the drawing of the fault tree.(3)For the issues of knowledge base construction,the ordinary fault tree was transformed into a binary fault tree and stored as a production rule in the form of a binary list.It provided knowledge source for knowledge base construction and fault diagnosis,then it gave detailed design processing of knowledge base maintenance and reasoning machines.(4)Based on the above research,the IETM system for equipment maintenance assistance was designed and implemented.The system was developed by using C#language and Microsoft SQL Server database under the Microsoft Visual Studio 2010 platform.The main features are:browse and edit electronic map,diagnosis the fault.Finally,the system function was tested by MD0400001 oscilloscope,which proved the feasibility of the system design and achieved the expected target.