摘要
为了实现室内外环境下的无缝精准定位,提出一种基于计数以及阈值机制的智能切换算法,避免了定位系统反复切换造成的运算量浪费,同时降低了智能手机的能耗,实现了室外全球定位系统(GPS)卫星定位技术和室内Wi-Fi位置指纹定位技术的无缝连接。在室外环境中利用GPS卫星定位技术进行定位,在室内外交界处切换到GPS/Wi-Fi融合定位算法,进入室内后切换到Wi-Fi位置指纹定位算法。基于真实的实验室场景进行了实验,实验数据表明:提出的算法能够很好地满足室内外无缝定位需求。
In order to achieve seamless precise positioning in indoor and outdoor environment, an intelligent switching algorithm based on counting and threshold mechanism is proposed, which avoids the waste of computation burden caused by repeated switching of positioning system, and reduces the energy consumption of smart phone, realizes seamless connectivity of outdoor global positioning system （ GPS ） satellite positioning technology and indoor Wi-Fi location fingerprint positioning technology. The algorithm uses GPS satellite positioning technology to locate in the outdoor environment, and switches to the GPS/Wi-Fi fusion positioning algorithm at the indoor and outdoor junction, and then switch to the Wi-Fi location fingerprint localization algorithm after entering indoor. Experiments are carried out based on real laboratory scenarios, and the experimental data show that the algorithm can meet the needs of indoor and outdoor seamless positioning.
作者
郭凯旋
卢彦霖
冯涛
阮超
余敏
GUO Kai-xuan;LU Yan-lin;FENG Tao;RUAN Chao;YU Min(School of Software,Jiangxi Normal University,Nanchang 330022,China;School of Computer Information and Engineering,Jiangxi Normal University,Nanchang 330022,China)
出处
《传感器与微系统》
CSCD
2018年第7期49-51,55,共4页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(41374039)
国家重点研发计划资助项目(2016YFB0502200)
关键词
室内外无缝切换
智能切换算法
全球定位系统卫星定位
Wi—Fi信号
位置指纹
indoor and outdoor seamless switching
intelligent switching algorithm
global positioning system（GPS）satellite positioning
Wi-Fi signal
position fingerprint
作者简介
郭凯旋（1993-），男，硕士研究生，主要研究方向为室内定位。;余敏（1964-），女，通讯作者，教授，主要研究领域为室内定位技术，E—mail：myu821@163．com。
