基于LTE及北斗导航的物联网终端位置系统的研究与仿真
发布时间:2018-05-22 19:06
本文选题:北斗导航 + 接收机 ; 参考:《北京交通大学》2014年硕士论文
【摘要】:随着科技的进步,人们对智能终端的需求与日俱增,并且人们对智能终端提供的服务提出了更多和更高的要求。近年来,基于位置的服务发展迅速并极大地改善了人们的生活,互联网时代的SoLoMo已经成为新的发展趋势。因此,智能终端一项必不可少的功能就是满足用户的精准定位需求。 目前,我国自主研发的北斗卫星导航系统已完成了对东南亚地区的覆盖,并已经在我国的军用、民用领域发挥了重要作用,其可以为授权用户提供定位、测速、授时和通信等服务。本文详细介绍了北斗系统定位的基本原理,即如何通过北斗系统来获取用户的位置信息,包括经度、维度、高度和速度等。由于在计算用户位置坐标的过程中存在许多干扰因素,从而影响了定位的精准度,所以,本文又分析了北斗系统定位过程中存在的误差源,并提出了一些解决方法和措施来减弱和消除这些误差。 北斗导航定位系统中北斗接收机的一个典型应用就是与移动终端设备相结合,准确获取这些终端的位置信息,并同时利用应用软件系统对这些终端进行综合管理,如智能物流系统和车辆监控系统等。本文第二部分详细介绍了这样一个终端位置管理系统的设计和开发。为了提高开发效率并保证系统的稳定性,该系统采用了基于MVC设计模式的SSH框架。该系统面向三级用户,不同级别的用户访问系统的权限不同,也从系统获取的服务不同。该系统主要由5个功能模块组成,即信息管理、信息查询、轨迹回放、电子围栏和片区监控。这些功能模块既独立又统一,能够高效地管理车辆终端并对用户提供便捷的服务。在这部分的最后,针对片区监控模块的开发过程中遇到的判断点与多边形位置关系的难点,本人提出的一种改进的算法很好地解决了这个问题。 最后,针对论文中终端位置管理系统的应用场景、系统需求以及系统总体设计目标,使用单元测试、系统测试和压力测试这三种软件测试方法对系统中五个核心的功能模块进行了测试。测试结果表明该管理系统设计合理、功能正常、性能良好,达到了预期目标。
[Abstract]:With the development of science and technology, the demand for intelligent terminals is increasing day by day, and people put forward more and higher requirements for the services provided by intelligent terminals. In recent years, location-based services have developed rapidly and greatly improved people's lives. SoLoMo in the Internet era has become a new development trend. Therefore, an essential function of intelligent terminals is to meet the needs of accurate positioning of users. At present, the Beidou satellite navigation system, which has been independently developed in China, has completed its coverage of Southeast Asia and has played an important role in the military and civilian fields of our country. It can provide positioning and speed measurement for authorized users. Services such as time service and correspondence. In this paper, the basic principle of Beidou system positioning is introduced in detail, that is, how to obtain the user's position information through Beidou system, including longitude, dimension, height and speed, etc. Because there are many interference factors in the process of calculating the location coordinates of the users, which affects the accuracy of the positioning, the error sources in the positioning process of the Beidou system are analyzed in this paper. Some solutions and measures are put forward to reduce and eliminate these errors. A typical application of Beidou receiver in Beidou navigation and positioning system is to get the position information of these terminals accurately by combining with the mobile terminal equipment, and at the same time to use the application software system to carry on the comprehensive management to these terminals. Such as intelligent logistics system and vehicle monitoring system. The second part of this paper introduces the design and development of such a terminal position management system in detail. In order to improve the development efficiency and ensure the stability of the system, the system adopts SSH framework based on MVC design pattern. The system is oriented to three levels of users, different levels of users have different permissions to access the system, but also from the system to obtain different services. The system is mainly composed of five functional modules, namely, information management, information query, track playback, electronic fence and area monitoring. These functional modules are independent and unified, can efficiently manage vehicle terminals and provide convenient services to users. At the end of this part, in view of the difficulty of judging the relationship between the point and the position of the polygon in the development of the monitoring module, I put forward an improved algorithm to solve this problem very well. Finally, according to the application scene, system requirement and the overall design goal of the terminal position management system in this paper, the unit test is used. Three software testing methods, system testing and stress testing, test the five core functional modules of the system. The test results show that the management system is reasonable in design, normal in function and good in performance.
【学位授予单位】:北京交通大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:TN96.1
【参考文献】
相关期刊论文 前10条
1 杨元喜;;北斗卫星导航系统的进展、贡献与挑战[J];测绘学报;2010年01期
2 阳仁贵;欧吉坤;闻德保;;GPS广播星历误差及对定位结果的影响[J];测绘信息与工程;2006年01期
3 谢飞;张忠臣;张鹏;李博章;;多径效应对测向误差的影响[J];电子测量技术;2010年01期
4 曾庆化;刘建业;彭文明;于永军;;我国卫星导航系统相关技术发展分析[J];航天控制;2006年04期
5 董秀山;刘润涛;;判断点与简单多边形位置关系的新算法[J];计算机工程与应用;2009年02期
6 戴邵武;马长里;廖剑;;“北斗一代”导航定位系统分析与研究[J];计算机与数字工程;2010年03期
7 孔祥旗;;GPS测量误差的削弱方法[J];科技信息(科学教研);2008年02期
8 雷登云;于敦山;陆卫军;;多普勒辅助的北斗定位算法[J];数字通信世界;2013年S2期
9 廉保旺;赵楠;王永生;;北斗卫星定位算法研究[J];西北工业大学学报;2007年01期
10 沈嘉;;3GPP LTE核心技术及标准化进展[J];移动通信;2006年04期
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