蓝牙和地图辅助行人航位推算的室内定位系统  

An indoor location system based on Bluetooth-corrected and map-matching aided PDR algorithm

作　　者：赵小平[1] 胡安冬[2] 赵文晔[2] 

机构地区：[1]北京工业职业技术学院,北京100042 [2]中国矿业大学,江苏徐州221116

出　　处：《测绘科学》2016年第7期53-58,共6页Science of Surveying and Mapping

基　　金：北京市教育委员会科技计划面上项目(KM201410853005);北京工业职业技术学院重点课题项目(bgzykyz201411)

摘　　要：针对行人航位推算算法中误差积累的问题,提出并实现了一种蓝牙纠正+地图匹配辅助行人航位推算的室内定位方法:首先通过划分矢量域对手机航向角予以校正,削弱线性矢量域的累积误差,并使用蓝牙信号强度模型反演距离,达到纠正关键点的效果。实验结果表明,该方法在保证了PDR的实时性以及短时间内的高精度性的同时,大幅削弱了PDR的误差,在一定程度上提高了系统整体的精度、可靠性以及抗差性。Due to the error-accumulation issue for pedestrian dead reckoning （PDR） algorithm with inertial sensors, a Bluetooth-corrected and map-matching aided PDR algorithm for indoor positioning was proposed. The heading angle was corrected through dividing the vector fields to reduce the cumulative error; then, the distance： was inversed by the strength model of Bluetooth signal to correct every key point. Experimental results showed that with the guarantee of real-time and enhancement of high accuracy, the error of PDR was reduced meanwhile, the accuracy, reliability and robustness of the whole system was improved to some extent.

关 键 词：行人航迹推算 蓝牙纠正 地图匹配 室内定位 航向角 

分 类 号：P208[天文地球—地图制图学与地理信息工程]