Research On The Software Platform Of On-Board Display Based On Embedded Linux

The on-board display is an important equipment to complete the man-machine conversation and show information of the system. The display guide trainman's operation and assure the safety of the locomotive. It is clear that there is important theoretic meaning and realistic meaning on the research of theoretic method and technological realization of the on-board display.Research is done in the domain of embedded Linux, real time operation system and the embedded graphical user interface during the author finishing the master thesis. The software platform of on-board display based on embedded Linux is accomplished.The PC/104 single board computer—PCM-9372 is chosen as the hardware platform of on-board display. The embedded Linux operation fitting to the on-board display is build and the work includes booting system, cutting out kernel and making root file system and so on. Because the embedded Linux can not suffice the real time of the on-board display the author makes use of RTLinux to rebuild the real time embedded Linux. The graphical user interface of the PG Linux is too voluminous to apply to the on-board display. MiniGUI which is a free software is elected and finishes the design of the graphical user interface of the display. And the graphical application programming interface of the on-board display is supplied.In the last, the display of surveillance is developed based on the software platform of on-board display. The platform is testified useable.