Researching and Testing of High-Precision Positioning System Based on Android Smartphones
A high-precision positioning system based on Android smartphones has been designed and developed to address the problems of conventional field coordinate data collection methods,combined with the convenient application requirements of high-precision location ser-vices.By integrating satellite navigation positioning reference station differential posi-tioning and pedestrian dead reckoning algorithms,and developing various observation environ-ment differential measurement strategies,a continuous high-precision positioning result can be obtained.Then,based on four Android smartphones including Huawei P40 and Xiaomi 8,a wide coverage(14 prefectures in Hunan province)and multi scene(open and occluded)positioning accuracy test was conducted to verify the usability and reliability of the system.The test results show that the system can operate stably and effectively in different smartphones and scenarios.The Huawei P40 has the best planar positioning accuracy,reaching up to about 0.2m in open environments.The system has been fully applied to the"three on-site"process of rural housing planning and construction in Hunan province.
Android smartphonehigh-precision positioning systemdifferentiation posi-tioningpedestrian dead reckoningHNCORS
万方数据
维普
