RFID传感中标签天线损伤的准确快速检测:海报摘要

Proceedings of the International Conference on Internet-of-Things Design and Implementation Pub Date : 2021-05-18 DOI:10.1145/3450268.3453515

Yinan Zhu, Chunhui Duan, Xuan Ding

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引用次数: 0

摘要

标签天线损坏是实际RFID系统中常见的一种现象，它会引起天线阻抗和天线增益的剧烈变化。利用与天线阻抗或增益相关的信号特征(例如，相位读数)的现有RFID传感系统容易受到这种标签天线损坏的影响，从而危及传感精度和可靠性。在这张海报中，我们介绍了rfat - checker，这是第一个提供准确和快速检测天线损坏标签的自动系统。阻抗引起的相移和增益引起的最小传输功率系数共同作为指纹进行选择和验证。利用COTS设备实现rfat - checker，并对84个商品标签实例进行了评价。实验结果表明，该方法的检测准确率高达97%，时间开销低，最多可达10s。

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Accurate and Fast Detection of Tag Antenna Damage for RFID Sensing: Poster Abstract

Tag antenna damage is a common phenomenon in real-world RFID systems, which incurs severe changes of antenna impedance and antenna gain. Existing RFID sensing systems leveraging signal features (e.g., phase readings) related to antenna impedance or gain are vulnerable to such tag antenna damage jeopardizing sensing accuracy and reliability. In this poster, we introduce RFANT-Checker, the first automatic system that provides accurate and fast detection of tags with damaged antenna. Impedance-induced phase shift and gain-induced minimum transmission power coefficient are jointly exploited as fingerprints for selection and validation. We implement RFANT-Checker with COTS devices and evaluate it on 84 examples of commodity tag. Experiment results demonstrate the high detection accuracy of up to 97% and low time overhead of at most 10s.

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Proceedings of the International Conference on Internet-of-Things Design and Implementation

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