Chenshu Wu
ABSTRACT
Existing indoor location systems do not easily scale at low cost while maintaining high accuracy. We present EasiTrack, an indoor tracking system that achieves decimeter accuracy using a single commodity WiFi Access Point (AP) under Non-Line-Of-Sight conditions and can deploy at scale with (almost) zero cost. We build a fully functional real-time system with a satellite-like architecture, which enables EasiTrack to support an unlimited number of clients. We have demonstrated EasiTrack in a number of different scenarios to track both humans and machines. The results reveal that EasiTrack achieves a decimeter median accuracy and a <2m maximum error and supports a broad coverage of 50 m×60 m using a single AP.
- Chenshu Wu, Feng Zhang, Yusen Fan, and K J Ray Liu. 2019. RF-based inertial measurement. In ACM SIGCOMM. 117--129.Google Scholar
- Chenshu Wu, Feng Zhang, Beibei Wang, and K J Ray Liu. 2019. EasiTrack: Decimeter-Level Indoor Tracking With Graph-Based Particle Filtering. IEEE Internet of Things Journal 7, 3 (2019), 2397--2411.Google ScholarCross Ref
- Feng Zhang, Chen Chen, Beibei Wang, Hung-Quoc Lai, Yi Han, and K J Ray Liu. 2018. WiBall: A time-reversal focusing ball method for decimeter-accuracy indoor tracking. IEEE Internet of Things Journal 5, 5 (2018), 4031--4041.Google Scholar
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Large-scale decimeter-level indoor tracking using a single access point: demo abstract
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