An Experimental Heuristic Approach to Multi-Pose Pedestrian Dead Reckoning Without Using Magnetometers for Indoor Localization
An Experimental Heuristic Approach to Multi-Pose Pedestrian Dead Reckoning Without Using Magnetometers for Indoor Localization
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DOI：
10.1109/jsen.2019.2926124
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发表时间：
2019-10-15
影响因子：
4.3
通讯作者：
Huang, Shih-Min
中科院分区：
文献类型：
--
作者：
Lee, Jin-Shyan;Huang, Shih-Min
行人航位推算 (PDR) 是一种使用内置加速计和陀螺仪进行基于智能手机的室内定位的潜在技术。然而，当前大多数 PDR 定位方法都限制携带手机的姿势，例如在跟踪过程中将手机放在身体前面。此外，航向确定是 PDR 系统中的主要误差源，因此通常需要磁力计来减少航向误差。然而，在室内环境中，磁力计输出会因建筑结构和电子设备的磁干扰而严重失真。本文提出了一种针对结构化环境的多姿态 PDR（mpPDR）室内定位的实验启发式方法。可以识别六种携带手机的姿势和四种模式，然后在不同模式的基础上，提出了一种不使用磁力计的航向确定实验方法，以减少考虑转身和握手事件影响的航向误差。实验结果表明，该方法支持四种智能手机模式，定位精度高达 97.99%。
Pedestrian dead reckoning (PDR) is a potential technique for smartphone-based indoor localization using the built-in accelerometers and gyroscopes. However, most current PDR positioning approaches restrict the pose to carry a phone, such as holding it in front of the body during tracking. In addition, heading determination is the primary error sources in PDR systems, and hence, a magnetometer is normally required to reduce heading errors. However, in indoor environments, magnetometer outputs would be seriously distorted by magnetic disturbances from the building structures and electronics. In this paper, an experimental heuristic approach to multi-pose PDR (mpPDR) indoor positioning for structured environments has been proposed. Six poses and four modes to carry a phone could be recognized, and then, on the basis of different modes, an experimental approach to the heading determination without using magnetometers has been presented to reduce the heading error considering the effects of turning and hand-shaking events. The experimental results indicate that the proposed approach supports four smartphone modes with a high position accuracy of 97.99%.