Research Of TTCN-3 Based Vehicle On-board Equipment Test System Of Magnetic Operation Control System

As China's national economic development, there is an urgent need to build and develop high-speed passenger line system of the passenger transport system. Maglev transportation system is increasing becoming the trend of development and will be on the stage of the inter-city rail traffic trasportantion.Maglev system is mainly composed of circuits, vehicles, traction power supply and operation control system. Operational control system responsible for the normal operation of trains and precise control, it plays a vital role, it is the core of the entire maglev system. Operation control system including the central dispatch management system, trackside equipment, Vehicle on-board equipment and communication system.Vehicle on-board equipment is on-board of the train, it takes responsibility for train protection, monitoring of speed, safety features such as location, safety, reliability related to the maglev train safe and stable operation. So research on test system corresponding to on-board equipment of maglev operation control system is essential. This article starts from the functional requirements of the on-board equipment of the maglev train control system. Introduced the process of the research of the test systemThe on-board equipment of the maglev transport control system is a multi-functional high-security complex system; the traditional means of testing is inapplicable. The article study on black-box testing theory and the traditional means of testing and raised a method with an orderly manner of traditional means, by the the method we can easily generate black-box test case sets.And further study is about IO -based test case reduction technology,.on the basis of this proposed a improved method of IO-based test case reduction technology.For testing by the testing system capacity, and test cost constraints, we stududied on the scheduling problem of the test case, and the introduced fuzzy theory to this problem and put the test case based on fuzzy sort of way.Advanced test cases description methods and their corresponding testing system can improve the efficiency of test. The paper adopted the TTCN-3 cord language and its test system, used to describe and implementation of test case. TTCN-3 is established as a test standard by European Telecommunications Standards Committee in 2001 is as well suited to communication systems and distributed system testing such as the magnetic on-board equipment in its characteristics. Finally, we introduced the establishment of the maglev on-board equipment test platform. And in this platform we finished function test of maglev on-board equipment. From the fact of test we testified the safety of maglev on-board equipment and proved the practicable of our method about test case generation, reduction and the sequencing.