【作者】 王瑞琴；

【导师】 石立新；

【作者基本信息】 内蒙古大学 ， 计算机应用技术， 2004， 硕士

【摘要】 随着我国经济的飞速发展，汽车作为一种便捷的交通工具，日益进入人们生活当中，但随之而产生的城市交通问题日益严重，已成为严重影响许多城市发展的主要问题。我们针对这个问题，设计了基于WebGIS的GPS车辆监控调度系统。 本系统是集全球定位系统(GPS)、网络地理信息系统(WebGIS)以及无线通信技术(GSM)于一体的软、硬件综合系统。它突破了传统网络系统的功能局限，使WebGIS技术与短信服务技术(SMS)进行无缝集成，实现网上作业。系统采用B／S三层模式将GIS和WWW结合起来，将矢量地理信息等需要经常变动的信息由数据库服务器集中管理，这样地理信息的更新维护就很方便；将基础性、全局性的处理交由应用服务器执行，而对数据量较小的简单操作则由浏览器端自定义的ActiveX控件直接完成。网络中传输的信息是深入到服务器端MapX控件中的电子地图图层内部提取的关键型矢量数据，因此数据量少，有效的减少了数据传输量，能够快速地进行海量地图的浏览显示。另外，浏览器端不需要配备昂贵的专业GIS软件，降低了系统成本，同时也节省了维护费用。 系统成功实现了地图的选择调入、浏览、平移、定点缩放与选择缩放、全图显示与刷新、车辆的动态定位、轨迹回放、实时监控与跟踪、多点测距、鹰眼导航、周边地形地貌分析、查询两点间的最优路径和查找一定范围内的各类机构等一系列功能。而且所实现的系统也很容易跟Web中的其它信息服务进行无缝集成，建立灵活多变的GIS应用。更多还原

【Abstract】 With the rapid development of our economy, taxis as a sort of convenient vehicle have stepped into people’s life increasingly. At the same time, the problem of transportation is more and more serious and becomes the primary problem of affecting the development of many cities. Aiming at this problem, we design the WebGIS-based GPS vehicle monitor and attemper system.This system i s a software and hardware system with GPS (global positioning system), WebGIS (network geographical information system), and GSM. It broke through the functional restriction in the traditional network system, integrated the WebGIS technique with SMS seamlessly, and realized working in network. The B/S three-tier mode which combines GIS with WWW is adopted in the system, the mutable information such as the vector data and so on are managed on the database sever, which is convenient for the update and maintenance of the geographical information, the basic and global disposal is executed on the application sever, however, the simple operation of a small quantity of data can be directly processed by the custom ActiveX control on the browser end. The information in the network is pivotal vector data, which distilled in the MapX control on the server end, so the data amount is small. It effectively minished the data transmission amount and it can browse and display the great capacity of map quickly. In the other hand, the browser end doesn’t need expensive and special GIS software, so reduce the cost of the system and save the cost of maintenance.The system successfully achieved a series of functions of selective loading of the map, browsing, movement, the pointing zoom and selective zoom, display and refreshing of the whole map, dynamic positioning of the vehicle, replaying o f the track, real-time supervising and tracking, multi-point measuring distance, hook-eyed navigation, analyzing the topography and physiognomy around, querying the optimized path and querying all kinds of organization at range of appointed and etc. Furthermore, the realized system also can easily integrate with other information services of Web seamlessly so that set up flexible GIS applications.更多还原