OmniTrack: Orientation-Aware RFID Tracking With Centimeter-Level Accuracy
| Autor: | Xiaolong Zheng, Yuan He, Chengkun Jiang, Yunhao Liu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Radar tracker
Computer Networks and Communications Orientation (computer vision) Computer science business.industry Mobile computing 020206 networking & telecommunications 02 engineering and technology Tracking (particle physics) 0202 electrical engineering electronic engineering information engineering Computer vision Artificial intelligence Electrical and Electronic Engineering business Software |
| Zdroj: | IEEE Transactions on Mobile Computing. 20:634-646 |
| ISSN: | 2161-9875 1536-1233 |
| DOI: | 10.1109/tmc.2019.2949412 |
| Popis: | RFID tracking attracts a lot of research efforts in recent years. Most of the existing approaches, however, adopt an orientation-oblivious model. When tracking a target whose orientation changes, those approaches suffer from serious accuracy degradation. In order to achieve target tracking with pervasive applicability in various scenarios, in this article, we propose OmniTrack, an orientation-aware RFID tracking approach. Our study presents a generic model that discribes the linear relationship between the tag orientation and the phase change of the backscattered signals. Based on this finding, we propose an orientation-aware phase model to explicitly quantify the respective impact of the read-tag distance and the tag's orientation. OmniTrack addresses practical challenges in tracking the location and orientation of a mobile tag. Our experimental results demonstrate that OmniTrack achieves centimeter-level location accuracy and has significant advantages in tracking targets with varing orientations, compared to the state-of-the-art approaches. |
| Databáze: | OpenAIRE |
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