An Indoor Ultrasonic Positioning System Based on TOA for Internet of Things

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/misy/volume-2016/4502867/figures/4502867.fig.008a.svgz" name="4502867.fig.008a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Transmitter node</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/misy/volume-2016/4502867/figures/4502867.fig.008b.svgz" name="4502867.fig.008b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Receiver node</td></tr></table>

<div>Transmitter and receiver nodes.</div>

Mobile Information Systems

fig8

Figure 8

Figure 8: An Indoor Ultrasonic Positioning System Based on TOA for Internet of Things 