JFreeChart 在铁路机车运行监视系统中的应用

铁路机车运行监视系统是一套远程监视机车车载设备实时运行状态信息,为机车设备提供故障预警、维护参考和检修支持的信息系统;该系统的一个重要环节就是将从机车上采集并通过传输、解析进入数据库的机车设备实时信息在客户端通过动态图形报表的形式直观地描述出来,以便专业人员进行设备状态分析。在铁道部铁路信息化中指定的J2EE三层架构环境中,如果采用自己设计的Java绘图类绘制图形,往往效果不佳;我们则通过引入目前最好的Java图形报表解决方案——JFreeChart来解决这个问题。本文主要描述的就是基于JFreeChart的Java动态图形报表技术在铁路机车运行状态中的应用,为大家在相似领域的应用提供参考。

Application of JFreeChart in the Locomotive Remote Monitoring System

The Locomotive Remote Monitoring system is a type of information system suitable for monitoring the remote equipments in running trains, which is used to raise the fault alarm, provide reference to maintenance and enhance the repair for the trains. A very important part of the LRM system is to draw a dynamic picture for the data collected from the train, transmitted through the wireless and internet, parsed into the database, which is used to analyze the equipment status in the train by the engineer. In the three-leveled B/S architecture of J2EE environment, designing your own java painting classes for the picture is not strong enough, so we introduced the JFreeChart Open Resources, which is the best solution for Java Painting Report. The implementation of JFreeChart in the LRM system is illustrated, which can be referred by the applications in similar area.