Influence of Vertical Sensor Placement on Data Collection Efficiency from Bluetooth MAC Address Collection Devices
Influence of Vertical Sensor Placement on Data Collection Efficiency from Bluetooth MAC Address Collection Devices
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DOI：
10.1061/(asce)te.1943-5436.0000178
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发表时间：
2010-12
期刊：
影响因子：
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通讯作者：
Thomas M. Brennan;J. Ernst;C. Day;D. Bullock;J. Krogmeier;Maria Martchouk
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文献类型：
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作者：
Thomas M. Brennan;J. Ernst;C. Day;D. Bullock;J. Krogmeier;Maria Martchouk
消费电子行业在许多便携式设备中广泛使用了蓝牙无线协议。大量蓝牙设备以媒体访问控制 (MAC) 地址的形式广播唯一标识符。这些 MAC 地址可以通过电子方式捕获，并且可以使用传统车牌研究中使用的相同匹配算法来估计路段行驶时间和出发地-目的地矩阵。本文简要说明了如何使用这些数据来估计动脉连接行程时间，并凭经验说明样本大小对传感器放置的敏感性。然后进行固定横向安装和不同垂直安装高度的受控实验，以制定安装蓝牙监控设备的设计建议。该论文最后建议 I 类蓝牙探测器安装高度至少高于路面坡度 8 英尺。根据印第安纳波利斯 I-65 公路的 24 小时经验数据集，我们发现 7.4%...
The consumer electronics industry has made extensive use of the Bluetooth wireless protocol in many portable devices. A substantial number of these Bluetooth devices broadcast a unique identifier in the form of the media access control (MAC) addresses. These MAC addresses can be captured electronically and the same matching algorithms used in traditional license plate studies can be used to estimate segment travel time and origin-destination matrices. This paper briefly illustrates how these data can be used to estimate arterial link travel times and empirically illustrates the sensitivity of sample size to sensor placement. A controlled experiment with fixed lateral mounting and varying vertical mounting heights is then conducted to develop design recommendations for mounting Bluetooth monitoring devices. The paper concludes by recommending a Class I Bluetooth detector mounting height of at least 8 ft above the pavement grade. Based on a 24-h empirical data set on I-65 in Indianapolis, we found that 7.4%...