基于VxWorks的机车智能显示单元的研究-控制科学与工程专业论文.docxVIP

现标准化。 现标准化。 笑键词：智能显示屏，实时多锓务操作系统，瀚形用户界面 AbstractABSTRACT Abstract ABSTRACT With the development of computers，communications，network and controlled calculation，information exchange and information management larger and larger field．The railway transportation is not an exception，for the dynamoelectric group of vehicles，higb—speed trains，city railway trains and other new locomotives we have developed and will develop in recent years demand the higll-level MCU display system increasingly．Providing friendly customer interface，diagnosing and prompting failures in order that staff the train can deal、撕th the information in good time． intelligent display is the equipment through which people the train transfer information in visible way and is the important safeguard for safe running． Combined with the manufacture of late—model intenigent display in SS4G project in Shanghai Railway Electric Technology Ltd，in order to realize the failure switch with supervisal and control display of corresponding system，this task the CAN and RS485 Bus interfaces and exte．nd the function of MVB and USB interfaces，At the same time，it replaces primary·logic circuit design with CPLD for the sake of simple circuit design and convenient system upgrade．In the software system，real—time multitask operating system VxWorks and its multimedia groupware WindML and Zinc applied in the locomotive intelligent display for the first time which is attempt for system software design． This task includes several parts below： Part 1 introduces and technology characteristics of train-carried display and its general situation both home and abroad． Part 2 introduces the project demonstration of intelligent display software and hardware structure system and accordingly chooses LCD the display device，MVB communication interface to other electronic control units in the locomotives， real-time multitask operating system VxWorks and its graphics groupware system software developer tools． Part 3 compares many industrial pr