智能交通中定位导航系统的设计与实现

发布时间：2018-08-24 12:12

【摘要】：在现代化城市建设中,智能交通具有广泛的只用,涵盖交通规划、设计、管理以及智能导航调度等方面。在以上方面中,导航系统具有核心作用,并且是智能交通各项功能实施的基础,具有重要基础意义。导航系统为交通系统的管理者和使用者提供了一个高效可视化的信息呈现方式和处理手段。地图导航定位子系统可以有效地缓解交通阻塞,根据实时情况及时有效地解决交通事故、交通故障,在多个方面具有极高的实用意义和使用价值。本文设计、实现并测试了一种导航系统。该系统在智能交通系统屮占有重要地位。作为智能交通的一个核心组成部分,该系统为车辆的使用者和管理者提供精确的车辆及地理位置定位,从而实现为各种车辆提供一个最佳的路径导航线路。进而该系统可以有效地避免交通拥挤,保证交通高峰期间车流畅通,从而可以使系统的使用者能够在预定时间从出发点到达最终地点。本系统利用国际领先的ArcGIS技术将实现监控的车辆和交通事故易发点实时地显示在电子地图的对应位置,同时兼顾电子地图系统的基本操作功能例如放大、缩小已经平移等。本文提供了一个实时查询界面以及大规模地理信息接收、处理和转换功能模块。本文的导航系统基于经典的最短路径Dijkstra方法实现了对各种导航需求的快速实时响应。同时本系统的一个重要特点是根据用户实时输入的查询需求进行各种查询优化来缩短系统查询的执行时间。本系统的最终目的为为车辆用户提供一个能够在地图界面上现实车辆与目的地之间的显示最优路线同时提供实时的更正和指异。在实现方面,本系统利用国际上较为成熟的电子地图厂商ESRI所开发的地理信息系统平台软件ArcGIS。同时参考了多种相关的API语言包进行系统实现。在系统框架方面,本文采用了较为通用的企业级JAVA模型框架进行开发。该框架是外围智能交通平台的主要实现工具。作为智能交通的重要组成部分,本系统在J2EE+ArcGIS这一模型的基础上进行更加细化的设计与实现。进而本系统在一定程度上解决了地图响应时间长,路径计算不够精确,路径显示错误等一系列技术问题。这些问题严重地影响了导航系统的用户体验。最终,本系统为使用者呈现了一个高效导航系统的用户体验。
[Abstract]:In the construction of modern cities, intelligent transportation is widely used, including traffic planning, design, management and intelligent navigation and scheduling. In the above aspects, the navigation system has the core role, and is the foundation of the intelligent transportation function implementation, has the important foundation significance. Navigation system provides an efficient visual information presentation and processing method for traffic system managers and users. Map navigation and positioning subsystem can effectively alleviate traffic congestion, according to the real-time situation timely and effectively solve traffic accidents, traffic failures, in many aspects of high practical significance and use value. This paper designs, implements and tests a navigation system. This system plays an important role in intelligent transportation system. As a core component of intelligent transportation, the system provides vehicle users and managers with accurate location of vehicles and geographical location, thus providing an optimal path navigation line for all kinds of vehicles. Furthermore, the system can effectively avoid traffic congestion and ensure the smooth flow of traffic during the rush hour, so that the users of the system can reach the final place from the starting point at a predetermined time. The system uses the international leading ArcGIS technology to display the monitored vehicles and traffic accident prone points in the corresponding position of the electronic map in real time. At the same time, the basic operation functions of the electronic map system such as magnification, reduction and translation are also taken into account. This paper provides a real-time query interface and a large-scale geographic information receiving, processing and conversion module. The navigation system in this paper is based on the classical shortest path Dijkstra method to realize the fast real-time response to various navigation requirements. At the same time, one of the important features of the system is to optimize all kinds of queries according to the user's real-time query requirements to shorten the execution time of the system query. The ultimate purpose of this system is to provide the vehicle users with a realistic optimal route between the vehicle and the destination on the map interface while providing real-time correction and referential difference. In the aspect of realization, this system uses ArcGIS., a GIS platform software developed by ESRI, a mature electronic map manufacturer in the world. At the same time, reference to a variety of related API language package for the implementation of the system. In the aspect of system framework, this paper adopts the general enterprise JAVA model framework to develop. This framework is the main implement tool of the peripheral intelligent transportation platform. As an important part of intelligent transportation, the system is designed and implemented on the basis of J2EE ArcGIS model. Furthermore, to some extent, the system solves a series of technical problems, such as long map response time, inaccurate path calculation and wrong path display. These problems seriously affect the user experience of navigation system. Finally, the system presents a user experience of an efficient navigation system.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U495;TN96

【相似文献】