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With the rapid development of China 's high-speed railway Train Control System (CTCS) has been widely used. Existing line has been popular CTCS0 ??the , CTCS1 fill our existing line 160km / h following control system blank senior CTCS2 also been applied in the 200km / h on the existing lines , and has made outstanding achievements . However, for the high-speed development of China's railway , CTCS0, CTCS1, CTCS2 has been unable to meet the requirements of further acceleration , the more advanced the development and application of CTCS3 should be imperative . Car train control device DMI information exchange platform is the driver and vehicle equipment . Car DMI 's role is very important , it is a bridge between the driver and the train , and train all kinds of information , and the ATP state to show the driver through sound , image , etc. , to remind the driver to perform the appropriate action to ensure road safety . The center position of the DMI device installed display, disposed around the speaker and keyboard , the driver can be input through the keyboard -related information, to change the working mode and the working state of the ATP system . Paper combines UML techniques described in detail based on Windows CE embedded operating system design and implementation process of the DMI , mainly covers the following aspects : (1) through the to learn from the ETCS and CTCS2 both experience , in accordance with the relevant European standard and the Ministry of standard, combined with China the actual national conditions , designed CTCS3 level column system DMI 's functional needs , and the formation of DMI interface shows detailed specification ; (2) the introduction of UML technology , use case diagram, activity diagram , class of objects , sequence diagram DMI system modeling and component diagrams , from the macro design of DMI 's development framework , methods and procedures ; (3) comparison of the performance characteristics of Windows CE, VxWorks, QNX, Linux and other embedded operating the DMI system ultimately choose Windows CE development platform and with Platform Builder5.0 completed its Windows CE operating system kernel customization ; (4) Embedded Visual C development DMI application software . The end of the article gives the the DMI software runs renderings .
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