基于NDS数据格式的导航系统的设计与实现
发布时间：2019-06-19 12:20
【摘要】：随着二十一世纪社会生活各个领域的飞速发展，在人们日常生活中，服务行业成为了人们需求的重点。在人们出行方面起主要作用的是正在兴起的导航服务。虽然目前市场上导航仪比比皆是，但是也正因此导航服务的普及带来了需求和技术上的更高要求。人们对信息获取需求的增加引发对数据存取的更高要求，如今导航系统数据存取缓慢、数据更新效率不高和个性化用户体验不够丰富等问题都有待我们去深入研究。 为了解决导航服务中不断增加的各种问题，通过对系统需求仔细分析，按照软件工程方法，将系统分为五个模块：电子地图查看、信息查询、智能导航、3D环境虚拟和手势命令。首先对各个需求进行概要分析并给出用例图，再通过对系统的整体分析确定了架构设计，采用MVC结构，将数据、视图和逻辑控制分开。接着通过运用新型数据标准NDS格式数据提升系统对数据的存取效率和扩展性能。再对系统划分的各个功能模块进行详细的分析设计，并且给出相应的功能流程图。在系统实现过程中采用了3D虚拟技术，，是系统视觉上更加立体，为用户提供更好的服务体验。 本文所实现的NDS导航系统，支持电子地图的信息显示、信息的查询和智能导航功能，还支持个性化的信息设定和保存以及3D效果的模拟。当用户出行时，该系统能全面、高效和便捷的进行导航服务，为人们节省时间和资源消耗以及提高效率，给出行带来积极意义。
[Abstract]:With the rapid development of various fields of social life in the 21 century, the service industry has become the focus of people's needs in people's daily life. What plays a major role in people's travel is the emerging navigation service. Although navigators abound in the market at present, the popularity of navigation services has brought higher demand and technical requirements. The increase of people's demand for information acquisition leads to higher requirements for data access. Nowadays, the data access of navigation system is slow, the efficiency of data update is not high and the personalized user experience is not rich enough. In order to solve the increasing problems in navigation service, the system is divided into five modules according to the software engineering method: electronic map viewing, information query, intelligent navigation, 3D environment virtual and gesture command. Firstly, each requirement is briefly analyzed and the use case diagram is given, and then the architecture design is determined by the overall analysis of the system. MVC structure is used to separate the data, view and logic control. Then the data access efficiency and expansion performance of the system are improved by using the new data standard NDS format data. Then the functional modules of the system are analyzed and designed in detail, and the corresponding functional flow chart is given. In the process of system implementation, 3D virtual technology is adopted, which is more stereoscopic in system vision and provides better service experience for users. The NDS navigation system implemented in this paper supports the information display of electronic map, the query of information and the function of intelligent navigation, as well as the personalized information setting and saving and the simulation of 3D effect. When the user travels, the system can carry on the navigation service comprehensively, efficiently and conveniently, saves the time and the resource consumption as well as improves the efficiency, and brings the positive significance to the travel.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN96;TP311.52
本文编号：2502342
[Abstract]:With the rapid development of various fields of social life in the 21 century, the service industry has become the focus of people's needs in people's daily life. What plays a major role in people's travel is the emerging navigation service. Although navigators abound in the market at present, the popularity of navigation services has brought higher demand and technical requirements. The increase of people's demand for information acquisition leads to higher requirements for data access. Nowadays, the data access of navigation system is slow, the efficiency of data update is not high and the personalized user experience is not rich enough. In order to solve the increasing problems in navigation service, the system is divided into five modules according to the software engineering method: electronic map viewing, information query, intelligent navigation, 3D environment virtual and gesture command. Firstly, each requirement is briefly analyzed and the use case diagram is given, and then the architecture design is determined by the overall analysis of the system. MVC structure is used to separate the data, view and logic control. Then the data access efficiency and expansion performance of the system are improved by using the new data standard NDS format data. Then the functional modules of the system are analyzed and designed in detail, and the corresponding functional flow chart is given. In the process of system implementation, 3D virtual technology is adopted, which is more stereoscopic in system vision and provides better service experience for users. The NDS navigation system implemented in this paper supports the information display of electronic map, the query of information and the function of intelligent navigation, as well as the personalized information setting and saving and the simulation of 3D effect. When the user travels, the system can carry on the navigation service comprehensively, efficiently and conveniently, saves the time and the resource consumption as well as improves the efficiency, and brings the positive significance to the travel.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN96;TP311.52
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