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Updated: Jul 7, 2026

Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment
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Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment

Published on: December 11, 2015

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每日生活活动识别与频率转移WiFi反向散射标签标签

Hikoto Iseda1, Keiichi Yasumoto2, Akira Uchiyama3

  • 1Department of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma 630-0192, Japan.

Sensors (Basel, Switzerland)
|June 19, 2024
PubMed
概括

这项研究引入了一种新的频率转移反射散射标签系统,用于识别家中日常活动. 该技术实现了高精度,即使没有直接的视线,也提高了老年人护理的可能性.

关键词:
无线电 无线电 无线电 无线电频率转移反向散射标签的反向散射标签生活活动认可生活活动认可

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IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1.
The...