导航电子地图增量式更新关键技术研究

发布时间：2018-06-02 22:14

本文选题：增量更新 + 更新模式　；参考：《天津师范大学》2013年硕士论文

【摘要】：导航电子地图数据的现势性是制约导航技术发展的瓶颈因素,随着经济的快速发展,现实地理要素的变化日新月异,传统的导航电子地图数据更新模式已经远远不能满足导航技术发展的现势性需求。因此针对发生变化的地理要素的增量式导航电子地图更新方式成为解决这一问题的最佳途径。本文就导航电子地图增量式更新的过程中所采用的关键技术进行了理论阐述和实践验证,其中增量更新模式的确立与选取、增量包数据的格式与存储、导航数据的融合与应用是本文的主要研究内容,也是本文的重点。具体来说,本文的主要研究工作有以下几个方面：第一,论文在分析了研究导航电子地图增量式更新的必要性基础上,总结了国内外对于导航电子地图更新的研究进展,并指出了以往的导航电子地图更新模式存在的问题,提出并完善了针对于导航电子地图变化信息的数据发现、分析甄别、获取采集、处理制作、生产发布的闭环式增量更新服务模式。第二,对于导航电子地图增量更新过程中使用的增量数据包进行了优化设计。增量包的组织结构与版本导航数据的格式基本一致,其中存储增加、修改、删除的变化要素。本文采取了对于增量包数据分数据集、分图幅、分图层的组织形式对数据进行存储,并使用导航电子地图拓扑维护系统对增量数据拓扑维护。第三,对于增量包数据和版本数据进行融合采用了预留图幅空间和指针地址相结合的方式。提出并使用了针对变化要素过多的图幅全部替换的方式,考虑并分析了在数据融合过程中出现的关键问题,对导航电子地图增量更新在导航终端和网络地图上的应用进行了探索和实现。第四,在本文理论的基础上,设计并实现了导航电子地图在终端平台上的系统应用。在实践的基础上,以天津导航数据为实验数据,设计生成了增量包数据,并将增量包数据融合到原导航数据中,验证了本文理论的可行性,实现了导航电子地图增量式更新。
[Abstract]:The potential of the navigation electronic map data is the bottleneck of the development of navigation technology. With the rapid development of the economy, the change of the real geographical elements is changing. The traditional data updating mode of the navigation electronic map can not meet the demand of the development of navigation technology. The way of updating electronic map is the best way to solve this problem.
In this paper, the key technology adopted in the process of incremental updating of navigation electronic map is expounded and verified in practice. The establishment and selection of incremental updating mode, the format and storage of incremental packet data, the fusion and application of navigation data are the main research contents of this paper, and the focus of this paper. The main research work has the following aspects:
First, on the basis of analyzing the necessity of studying the incremental updating of navigation electronic map, this paper summarizes the research progress on the update of navigation electronic map at home and abroad, and points out the problems existing in the previous updating mode of the navigation electronic map, and puts forward and perfects the data discovery for the change information of navigation electronic map, and analyzes the analysis and screening. Do not get the closed loop incremental update service mode of acquisition, processing and production release.
Second, the incremental packets used in the incremental updating process of the navigation electronic map are optimized. The organizational structure of the incremental packet is basically consistent with the format of the version navigation data, in which the change elements are stored, modified and deleted. The data is stored, and the topology maintenance system of the navigation electronic map is used to maintain the incremental data topology.
Third, the combination of the incremental packet data and the version data is combined with the combination of the reserved map space and the pointer address. This paper puts forward and uses the way to replace all the overmuch change elements, considering and analyzing the key questions in the process of data fusion, and the incremental updating of the navigation electronic map in the end of navigation. The application on end and network map is explored and implemented.
Fourth, on the basis of this theory, the application of the navigation electronic map on the terminal platform is designed and realized. Based on the practice, based on the experimental data of Tianjin navigation data, the incremental packet data is designed and generated, and the incremental packet data is fused into the original navigation data. The feasibility of the theory is verified and the navigation electronic is realized. Incremental update of the map.
【学位授予单位】：天津师范大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P283.7

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