The Research Of Intelligent Evaluation System Based On Virtual Engine Room

With the rapid development of computer simulation technology,the virtual reality technology find a wide utilization in the professional fields of teaching,training,scientific research and engineering design.The evaluation of practical operation as a test of knowledge and operational level is an important part of the way the crew trained and certified,traditional evaluation mainly adopts evaluators’ subjective scoring ways.Currently,the utilization of marine simulator evaluation system for operation automatic scoring gets more and more attention,it improves scientific and fairness of evaluation.This thesis takes the intelligent operation evaluation system of the virtual engine room based DMS series VLCC marine simulator as the research object,completed following tasks mainly:1.Establish the systematic operation index of virtual engine room,combine AHP-CRITIC subjective and objective weights as the weight of index,and establish evaluation model based on fuzzy comprehensive evaluation.2.Design the knowledge base structure of evaluation system,build the knowledge base and score management database based on MySQL database,accomplish database access by ADO.NET technology,establish dynamic database of evaluation system,and accomplish the conversion between ADO.NET and XML documents in dynamic database.3.Use the Unity 3D technology,develop scenarized generating test paper function based on three-dimensional virtual engine room,including the administrator hall auto-generating test paper options,interaction points select and papers selected menu in virtual engine room,get tables from database,convert local XML documents and papers upload functions.Establish evaluation System reasoning processes,design the evaluation system software of virtual engine room.Take the operation and management of fuel oil separator and operation of power station as the examination subjects,for example,analysis the evaluation software.