Backscatter-based wireless sensing system for multi-channel complex impedance measurements

被引：0

作者：

Vena, Arnaud ^{[1
]}

Podlecki, Jean ^{[1
]}

Sorli, Brice ^{[1
]}

机构：

[1] Univ Montpellier, CNRS, IES, Montpellier, France

来源：

2024 9TH INTERNATIONAL CONFERENCE ON SMART AND SUSTAINABLE TECHNOLOGIES, SPLITECH 2024 | 2024年

关键词：

backscatter; sensor; complex impedance; SDR; COST;

D O I：

10.23919/SpliTech61897.2024.10612633

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We present a novel work that implements the principle of backscatter communication to enable multiple sensing with a single antenna connected to an SP4T switch. It is demonstrated that data from multiple sensors can be plotted in real-time directly on the IQ pattern of the received signal. Clustering classification is implemented for automatic identification on the IQ diagram of various sensor-related impedance states. A practical experiment based on the use of a software-defined radio on one side and a backscatter node with two different passive sensors demonstrates the proof of concept.

引用

页数：4

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