Design and implementation of differential positioning equipment based on continuously operating reference station

doi:10.13474/j.cnki.11-2246.2020.0404

Abstract

Abstract: Global satellite navigation positioning (GNSS) technology provides an effective means of real-time positioning for industries. Currently widely used real-time GNSS positioning technology can be divided into two types, one is low-cost positioning technology, which uses cheap chips and antennas, mainly used in mobile phones, shared bicycles and bus positioning, etc. The other is high precision GNSS positioning technology, which uses network RTK technology combined with geodesy antennas and receivers to provide real-time centimeter-level services for high-precision survey users. With the development of technologies such as the Internet of things and 5G, the requirements of real-time sub-meter and decimeter-level positioning are gradually increasing. The original low-cost GNSS positioning technology cannot meet this precision requirement, and the high-precision positioning equipment is expensive and cannot be used in the mass-market. Therefore, this paper implements a low-cost differential positioning equipment based on CORS. The equipment consists of two parts: external devices and mobile phone. Experiments show that after accessing the CORS, the positioning precision of the horizontal can reach sub-meter level with the accurate VRS observations of the CORS. This paper has certain significance for promoting the wide application of CORS.

Key words: low-cost, sub-meter level, CORS, single frequency, RTK

CLC Number:

P228

LIU Xingwei, SHI Junbo, PU Dexiang, XU Chaoqian. Design and implementation of differential positioning equipment based on continuously operating reference station[J]. Bulletin of Surveying and Mapping, 2020, 0(12): 114-117.

References

[1] WATZDORF S V, MICHAHELLES F. Accuracy of positioning data on smartphones[C]//Proceedings of the 3rd International Workshop on Location and the Web. New York:ACM,2010.
[2] 周源,汪永强,张庆全.基于安卓系统的位置服务终端软件研发[J].测绘与空间地理信息,2014,37(10):88-91.
[3] 陈元洪,郭际明,陈品祥,等.基于CORS的DInSAR大气延迟校正方法研究[J].大地测量与地球动力学,2015,35(6):1026-1030.
[4] 李志伟,辛占国,许进.基于CORS系统的网络RTK技术在控制测量中的应用[J].测绘与空间地理信息,2015,38(9):135-136.
[5] 翟伟林,田学军,王乾,等.CORS网络RTK技术在农村集体土地所有权确权工作中的应用[J].测绘通报,2013(S1):284-285.
[6] 张小红,朱锋,李盼,等.区域CORS网络增强PPP天顶对流层延迟内插建模[J].武汉大学学报(信息科学版),2013,38(6):679-683.
[7] 刘经南,刘晖.连续运行卫星定位服务系统——城市空间数据的基础设施[J].武汉大学学报(信息科学版),2003,28(3):259-264.
[8] 姚宜斌,胡明贤,许超钤.基于DREAMNET的GPS/BDS/GLONASS多系统网络RTK定位性能分析[J].测绘学报,2016,45(9):1009-1018.
[9] 杨本廷,谢征海.浅谈重庆市现代测绘基准体系建设[J].城市勘测,2013(3):70-73.
[10] 周金国,廖振环,崔书珍.利用CORS数据计算重庆InSAR对流层延迟[J].测绘信息与工程,2010,35(1):13-14.
[11] 张忠友.基于重庆CORS的GPS高程测量方法研究[J].科技资讯,2011(25):43.
[12] 王道军.基于北斗卫星的物流追踪系统研究[D].北京:北京邮电大学,2014.
[13] 李陆浩.面向无人驾驶汽车的车道级导航研究[D].长春:吉林大学,2014.
[14] 黄永帅,史俊波,欧阳晨皓,等.千寻北斗地基增强网络下的实时观测数据解码及定位性能分析[J].测绘通报,2017(9):11-14.
[15] SHI J B, HUANG Y S, OUYANG C H,et al. BeiDou/GPS relative kinematic positioning in challenging environments including poor satellite visibility and high receiver velocity[J]. Survey Review, 2018, 52(3):1-11.