基于移动卫星通讯的列车自动报点系统与运行图绘制

列车自动报点系统包括车载系统和地面系统,车载系统通过移动卫星通讯,将列车所在位置、运行速度、车站停靠等信息实时传输到地面系统,地面系统自动绘制列车实绩运行图并在电子地图上显示列车的位置。运行图的绘制采用双缓冲实现视图的快速显示,解决了报点时刻以及车次标注的重叠问题,并在Delphi中自己创建新类模拟画笔来完成绘制不同类型列车运行线的要求。实绩运行图可以像其它图形软件一样实现放大、缩小、平移等视图操作,并可以在任何支持图形打印的打印机或者绘图仪上打印,软件自动根据打印机类型和纸张大小将打印效果调至最佳。

Automatic Train Reporting System and Train Working Diagram Preparation Based on Mobile Satellite Telecommunication

Automatic train reporting system consists of the on-board system and the ground system. Based on mobile satelli te telecommunication, the trainborn system transmits in real time the informatio n such as train location, speed and parking station to the ground system. The gr ound system automatically plots the train working diagram and displays the train location on the electronic map. The plotting software adopts double-buffer to achieve fast display of the diagram, avoiding the overlap of the time and train number. A new type of simulating pen in Delphi is created to meet the requireme nt of different operation lines. The operation of the display such as zoom in, z oom out and plane movement can be realized in the train working diagram just as in other graphic software. The diagram can be printed out on any printer or plot ter supporting graphics printing. The printing effect can be optimized according to the type of printer and size of paper used.