摘要
针对信号标签在基于蓝牙5.1到达角(AOA)技术中因方向改变引起的定位结果不精准问题,提出一种空间拓扑结构自适应移动性管理方案,能够有效减轻因信号标签方向性所带来的多径效应,提升室内实时定位精度,并实现其移动过程中的连续定位。最后对接收端设备的空间拓扑结构进行布置,结合接收信号强度指示(RSSI)实现接收端设备的动态选择,并进行移动性测试。实验结果表明,应用移动性管理方案后,系统定位结果受到信号标签位置和方向的影响减弱,定位精度得到有效提升,点位均方根误差(RMSE)达到25.94 cm。
Based on the inaccurate positioning results of signal tags in bluetooth 5.1 angle of arrival(AOA) technology caused by the changing direction, a spatial topology adaptive mobility management scheme, can effectively reduce the multipath effect caused by the directionality of signal labels, which improves real-time positioning accuracy, and realizes the continuous positioning in the process of moving. Finally, the spatial topology of the receiver device is arranged, and dynamic selection of the receiver device is realized by combining the received signal strength indicator(RSSI). The experimental result shows, after the application of the mobility management scheme, the positioning accuracy is effectively improved, with the root mean square error(RMSE) of points reaching 25.94 cm.
作者
邓诗凡
蒋伟
杨俊杰
隋志成
姜少伟
DENG Shifan;JIANG Wei;YANG Junjie;SUI Zhicheng;JIANG Shaowei(School of Electronics and Information Engineering,Shanghai University of Electric Power,Shanghai 201306,China;Shanghai DianJi University,Shanghai 201306,China;Zenchant Electronics Co.Ltd.,Shanghai 201199,China)
出处
《导航定位学报》
CSCD
2022年第6期75-80,共6页
Journal of Navigation and Positioning
基金
上海市科技创新行动计划地方院校能力建设项目(21010501000)
上海市教育发展基金会和上海市教育委员会“曙光计划”(17SG51)。
关键词
蓝牙5.1
到达角
室内定位
多径效应
移动性管理
bluetooth 5.1
angle of arrival
indoor positioning
multipath effect
mobile management
