【作者】 杨全胜；

【导师】 朱宏；

【作者基本信息】 四川大学 ， 计算机应用， 2006， 硕士

【摘要】 本文以企业应用为背景,在分析和总结了目前国内外GPS技术诸多应用领域的基础上,提出将GPS技术引入于企业铁路运输调度系统,以提高、改善其安全性和效率,同时也进一步拓展了GPS的应用领域。GPS技术在机车调度系统中的应用不仅仅限于传统的如:汽车、船舶、飞机等的简单定位显示、导航、跟踪等,而是更进入一步让GPS技术直接参与到机车调度系统中去,由于铁路机车运行方式具有其特殊规律,借助GPS系统对机车进出铁路股线的识别,可以实现自动判别机车每次运输作业的完成。文中首先介绍了GPS基本概念、GPS相关技术。阐述了什么是GPS、GPS发展历史和目前的应用情况,接着详细给出了GPS绝对定位算法的原理、简单叙述了GPS相对定位算法的原理等。然后本文介绍了目前较为流行的MVC (Model View Control)和J2EE(java 2 Enterprise Edition)技术,接着论述了由于以上技术的采用,使得系统具有如:界面与业务逻辑彻底分离,在系统架构中各司其职、互不干涉,具有了较强的伸缩性、通用性和可操作性等特点。在本文前两部分的基础上比较详细的论述和介绍个一个基于GPS技术和J2EE规范的开发应用实例。首先,对整个系统总体框架结构、功能模块组成进行了总体介绍,然后重点介绍了机车GPS车载系统的组成、原理、功能等。接下来对调度中心基站的设备构成及功能做了一个简单的介绍,重点介绍了用于提高定位精度的差分仪的原理及设备构成。最后又比较详细的讲述了机车调度系统软件的设计和实现的步骤和过程,通过统一建模语言UML (Unified更多还原

【Abstract】 With the background of application in enterprise, by analyzing and summarizing the application of GPS technology in different field, this paper proposed application of GPS in enterprise train transit dispatching system to improve security and efficiency, at the same time, the area of GPS technology was extended more. Except the aspects of traditional application, like position the vehicle and so on, it is also taken part directly in the dispatching work of train. Since the special move rule of locomotive, and by GPS system, the dispatching system implementates the automatic recognising of train’s transportation task on railway.First, it mainly introduces the conception of GPS, and related technology. First, what’s GPS, then the history and current application area of GPS, and the GPS Absolute Positioning Arithmetic, briefly depict the theory of relative position.Then, MVC(Model View Control) and J2EE(java 2 Enterprise Edition) were briefly introduced, then introduces the multilayer architecture of system by related technology.Furthermore, based on the first and second parts above, an instance is introduced which is based on GPS and J2EE technology. First, there is a whole introduction about the system structure and function module. Then mainly introduce the GPS system on the train, it includes the theory of GPS’s signal incepting and更多还原