Mag-Barcode: Magnet Barcode Scanning for Indoor Pedestrian Tracking

Zefan Ge, Lei Xie, Shuangquan Wang, Xinran Lu, Chuyu Wang, Gang Zhou, Sanglu Lu
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引用次数: 1

Abstract

In typical scenarios for indoor localization and tracking, it is essential to accurately track the pedestrians when they are crossing the connections of different spaces. In this paper, we propose a magnet barcode scanning-based solution for indoor pedestrian tracking. We assemble multiple magnet bars into magnet arrays as a unique magnet barcode, and deploy different magnet barcodes at different connections to label them. We embed an inertial measurement unit (IMU) into the pedes-trian‘s shoes. When the pedestrian crosses these connections, the magnetometer from the IMU scans the magnet barcode and recognize its corresponding ID. In this way, indoor pedestrian tracking can be regarded as a process of continuously scanning different magnet barcodes. By performing correlation analysis on these barcodes, the trace of pedestrian can be effectively depicted in the indoor map. To build a unique magnet barcode based on the magnet bar arrays, we provide an optimized structure for building the magnet barcode. To tackle the diversities of the pedestrian's gait traces in identifying the magnet barcode, we provide a generalized model based on the space axis for magnet barcode identification. As far as we know, this is the first work to use the magnet bar array to construct the magnet barcode for indoor pedestrian tracking. The real experiment results show that our system can achieve an average accuracy of 88.9% in identifying the magnet barcodes and an average accuracy of 93.1 % for indoor pedestrian tracking.
磁条形码:用于室内行人跟踪的磁条形码扫描
在典型的室内定位与跟踪场景中,当行人穿过不同空间的连接处时,准确地跟踪行人是至关重要的。本文提出了一种基于磁体条码扫描的室内行人跟踪解决方案。我们将多个磁棒组装成一个独特的磁棒条形码,并在不同的连接位置部署不同的磁棒条形码来标记它们。我们将惯性测量单元(IMU)嵌入行人的鞋子中。当行人穿过这些连接时,IMU上的磁力计扫描磁铁条形码并识别其相应的ID。这样,室内行人跟踪就可以看作是一个不断扫描不同磁体条码的过程。通过对这些条形码进行相关分析,可以有效地在室内地图中描绘行人的踪迹。为了构建基于磁条阵列的独特磁体条码,我们提供了一种优化的磁体条码结构。为解决磁体条码识别中行人步态轨迹的多样性,提出了一种基于空间轴的广义磁体条码识别模型。据我们所知,这是第一次使用磁条阵列构建用于室内行人跟踪的磁条条码。实际实验结果表明,该系统对磁体条码的识别平均准确率为88.9%,对室内行人的跟踪平均准确率为93.1%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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