省级CORS系统控制中心软件分析研究

发布时间：2018-04-26 19:41

本文选题：GNSS + 网络RTK　；参考：《昆明理工大学》2017年硕士论文

【摘要】：目前,连续运行参考站系统相关的技术及应用是测绘届的研究热点之一,世界上很多国家和地区相继建立了自己的CORS系统。经过对CORS系统多年不断的研究和实践,无论是该系统的技术水平还是工程建立技术水平都已逐渐成熟。建立CORS系统是一个严谨而又复杂的系统工程,包括了 CORS系统数据采集、传输、处理、改正、应用整个流程。首先本文给出了 CORS系统的定义,介绍了 CORS系统的基本原理和结构组成。与此同时,本文介绍了 CORS系统关键的几个网络RTK技术,详细介绍了该技术的基本原理和实际运用情况。此外,本文还介绍了 CORS系统定位的误差来源及影响,并分析了消除或者减弱该误差的方法。然后本文重点介绍了 CORS系统控制中心软件的结构组成和功能。该控制中心软件由五个模块组成,分别是参考站网模块、数据处理模块、控制中心模块、数据通讯模块和用户模块。其中数据处理模块和控制中心模块是整个CORS系统控制中心软件的核心。本文详细的阐述了这五个模块的功能和它们之间的联系。此外还介绍了数据在这五个模块之间的传输进行了阐述。最后本文选取了目前国内运用较为广泛的三种控制中心软件进行对比分析。在这三种控制中心软件覆盖的范围内进行数据采集,根据采集的数据分别进行内符合精度、外符合精度、时间可用性、空间可用性、初始化时间、网络延迟和GNSS接收机兼容性做了详细的分析。同时也对三种控制中心软件的联网能力、自运行能力、预警能力、监控能力做了测试。本文通过对三种不同CORS系统控制中心软件下采集的数据分析之后得到了一些有益的结论。这些结论为以后CORS系统的工程建设、系统测试、数据分析等方面具有一定参考意义。
[Abstract]:At present, the related technology and application of continuous operation reference station system is one of the research hotspots in surveying and mapping field. Many countries and regions in the world have established their own CORS system one after another. After many years of research and practice on CORS system, both the technical level of the system and the technical level of engineering establishment have gradually matured. The establishment of CORS system is a rigorous and complex system engineering, including the CORS system data acquisition, transmission, processing, correction, application of the entire process. Firstly, the definition of CORS system is given, and the basic principle and structure of CORS system are introduced. At the same time, this paper introduces several key network RTK technologies in CORS system, and introduces the basic principle and practical application of this technology in detail. In addition, this paper also introduces the source and influence of positioning error in CORS system, and analyzes the methods to eliminate or weaken the error. Then, this paper introduces the structure and function of CORS system control center software. The control center software consists of five modules, namely, reference station network module, data processing module, control center module, data communication module and user module. The data processing module and the control center module are the core of the control center software of the whole CORS system. This paper describes the functions of the five modules and the relationship between them in detail. In addition, the transmission of data between the five modules is described. Finally, this paper selects three kinds of control center software which are widely used in our country to carry on the contrast analysis. The data acquisition is carried out within the scope of the software coverage of the three control centers. According to the collected data, the internal coincidence accuracy, the external coincidence precision, the time availability, the spatial availability, the initialization time are carried out respectively. Network delay and GNSS receiver compatibility are analyzed in detail. At the same time, the network ability, self-running ability, early warning ability and monitoring ability of three kinds of control center software are tested. In this paper, some useful conclusions are obtained by analyzing the data collected under three different CORS system control center software. These conclusions have certain reference significance for the engineering construction, system test and data analysis of CORS system in the future.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P228.4;TP319

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