Development of a real-time high-precision positioning system based on smartphones and vehicle-mounted application test

doi:10.13474/j.cnki.11-2246.2022.0294

Abstract

Abstract: With the development of smartphones with multi-system GNSS observations, the raw GNSS observations of the smartphones are feasible for high-precision positioning, which has become one of the research hotspots. In this paper, we develop a set of real-time high-precision positioning system for smartphones based on reverse RTK, which could reduce the computing pressure of smartphones. Based on Mi 8 smartphone, we perform a large-scale (Shenzhen, Wuhan and Beijing), multi-scenarios (urban open/blocking, highway open/blocking) dynamic vehicle-mounted application test to verify the reliability and usability of the system. The results show that the system can operate stably and effectively in all scenarios. Besides, we can achieve sub-meter real-time dynamic positioning accuracy under the open sky environment, with an optimal accuracy of 0.21 m.

Key words: smartphone, multi-system GNSS, reverse RTK, real-time high-precision positioning system, vehicle-mounted application test

CLC Number:

P228

WANG Yixin, LIU Hui, QIAN Chuang, FAN Xiaoyun. Development of a real-time high-precision positioning system based on smartphones and vehicle-mounted application test[J]. Bulletin of Surveying and Mapping, 2022, 0(10): 56-61.

References

[1] BANVILLE S,DIGGELEN F.Precise GNSS for everyone:precise positioning using raw GPS measurements from android smartphones[J]. GPS World, 2016, 27(11):43-48.
[2] 王楚极,龙驰宇,王锋,等.智能手机多频多系统实时动态的定位性能分析[J].全球定位系统, 2021, 46(5):10-16.
[3] 谭理庆.安卓智能手机多模GNSS观测数据质量评估及定位算法研究[D].武汉:武汉大学, 2020.
[4] 冷宏宇,秘金钟,徐彦田,等.智能手机终端RTK定位性能分析[J].测绘科学, 2020, 45(12):15-21.
[5] 郭斐,吴维旺,张小红,等. Android智能手机实时精密单点定位软件实现及精度分析[J].武汉大学学报(信息科学版), 2021, 46(7):1053-1062.
[6] LI Guangcai, GENG Jianghui. Characteristics of raw multi-GNSS measurement error from Google Android smart devices[J]. GPS Solutions, 2019, 23(3):90.
[7] LIU Wanke, SHI Xiang, ZHU Feng, et al. Quality analysis of multi-GNSS raw observations and a velocity-aided positioning approach based on smartphones[J]. Advances in Space Research, 2019, 63(8):2358-2377.
[8] FORTUNATO M,CRITCHLEY-MARROWS J,SIUTKOWSKA M,et al. Enabling high accuracy dynamic applications in urban environments using PPP and RTK on android multi-frequency and multi-GNSS smartphones[C]//Proceedings of 2019 European Navigation Conference (ENC). Warsaw, Poland:IEEE,2019.
[9] PAZIEWSKI J, SIERADZKI R, BARYLA R. Signal characterization and assessment of code GNSS positioning with low-power consumption smartphones[J]. GPS Solutions, 2019, 23(4):98.
[10] DARUGNA F, WVBBENA J, ITO A, et al. RTK and PPP-RTK using smartphones:from short-baseline to long-baseline applications[C]//Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation.Miami, Florida:Institute of Navigation, 2019:3932-3945.
[11] WANG Liang, LI Zishen, WANG Ningbo, et al. Real-time GNSS precise point positioning for low-cost smart devices[J]. GPS Solutions, 2021, 25(2):69.
[12] 史翔.基于智能手机GNSS观测值的连续平滑定位算法[D].武汉:武汉大学, 2019.
[13] 肖青怀,秘金钟,谷守周.两种不同方式智能手机伪距平滑分析[J].测绘通报, 2021(1):1-8.
[14] 徐荣攀,王勇松,邱模波.智能手机高精度RTK算法实现与分析[C]//第十二届中国卫星导航年会论文集——S02导航与位置服务.南昌:中国卫星导航学术年会组委会, 2021:6.
[15] 王颖喆,陶贤露,朱锋,等.利用智能手机实现GNSS原始观测值的高精度差分定位[J].武汉大学学报(信息科学版), 2021, 46(12):1941-1950.
[16] GENG Jianghui, JIANG Enming, LI Guangcai, et al. An improved hatch filter algorithm towards sub-meter positioning using only android raw GNSS measurements without external augmentation corrections[J]. Remote Sensing, 2019, 11(14):1679.
[17] GENG Jianghui, LI Guangcai. On the feasibility of resolving Android GNSS carrier-phase ambiguities[J]. Journal of Geodesy, 2019, 93(12):2621-2635.
[18] 高成发,陈波,刘永胜. Android智能手机GNSS高精度实时动态定位[J].测绘学报, 2021, 50(1):18-26.
[19] 栗广才.大众智能手机GNSS模糊度固定理论与方法[D].武汉:武汉大学, 2021.
[20] SHIN E H. Estimation techniques for low-cost inertial navigation[D]. G calgary:University of Calgary, 2005.