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Indoor footstep localization from structural dynamics instrumentation

机译：通过结构动力学仪器进行室内足迹定位

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Measurements from accelerometers originally deployed to measure a building's structural dynamics can serve a new role: locating individuals moving within a building. Specifically, this paper proposes measurements of footstep-generated vibrations as a novel source of information for localization. The complexity of wave propagation in a building (e.g., dispersion and reflection) limits the utility of existing algorithms designed to locate, for example, the source of sound in a room or radio waves in free space. This paper develops enhancements for arrival time determination and time difference of arrival localization in order to address the complexities posed by wave propagation within a building's structure. Experiments with actual measurements from an instrumented public building demonstrate the potential of locating footsteps to sub-meter accuracy. Furthermore, this paper explains how to forecast performance in other buildings with different sensor configurations. This localization capability holds the potential to assist public safety agencies in building evacuation and incidence response, to facilitate occupancy-based optimization of heating or cooling and to inform facility security.
机译：最初用于测量建筑物的结构动力学的加速度计的测量可以起到新的作用：定位在建筑物内移动的人员。具体来说，本文提出了测量脚步产生的振动的方法，作为一种新的定位信息源。建筑物中波传播的复杂性（例如色散和反射）限制了现有算法的实用性，这些算法旨在定位例如房间中的声源或自由空间中的无线电波。本文针对到达时间确定和到达本地化的时差开发了增强功能，以解决建筑物结构内波传播带来的复杂性。通过对有仪器的公共建筑进行实际测量的实验表明，将步伐定位到亚米级精度的潜力。此外，本文还介绍了如何预测具有不同传感器配置的其他建筑物的性能。这种本地化功能具有帮助公共安全机构进行疏散和事故响应，促进基于占用的供暖或制冷优化并告知设施安全的潜力。

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