Passive indoor human daily behavior detection method based on channel state information

Xiaochao DANG; Yaning HUANG; Zhanjun HAO; Xiong SI

doi:10.11959/j.issn.1000-436x.2019082

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Passive indoor human daily behavior detection method based on channel state information

Papers | 更新时间：2024-06-05

- Passive indoor human daily behavior detection method based on channel state information
- Journal on Communications Vol. 40, Issue 4, Pages: 160-170(2019)
- 作者机构：
  
  1. 西北师范大学计算机科学与工程学院，甘肃兰州 730070
  2. 甘肃省物联网工程研究中心，甘肃兰州 730070
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61762079);The National Natural Science Foundation of China(61662070);The Key Science and Technology Development Program of Gansu Province(1604FKCA097);The Key Science and Technology Development Program of Gansu Province(17YF1GA015)
- DOI：10.11959/j.issn.1000-436x.2019082
  CLC： TP391
- Online First：2019-04，
  
  Published：25 April 2019
- 稿件说明：
移动端阅览
Xiaochao DANG, Yaning HUANG, Zhanjun HAO, et al. Passive indoor human daily behavior detection method based on channel state information[J]. Journal on Communications, 2019, 40(4): 160-170.
DOI：

Xiaochao DANG, Yaning HUANG, Zhanjun HAO, et al. Passive indoor human daily behavior detection method based on channel state information[J]. Journal on Communications, 2019, 40(4): 160-170. DOI： 10.11959/j.issn.1000-436x.2019082.

摘要

利用CSI的室内人员日常行为检测在无线传感网领域如火如荼地发展着，但大多数研究仍停留在2.4 GHz的环境下，因此在检测率、顽健性、整体性能等方面还亟待提高。为解决此类问题，提出了一种基于CSI信号的无源室内人员日常行为检测方法HDFi，该方法在5 GHz的环境下对室内人员日常行为检测进行进一步的研究。所提检测方法分为3步：数据采集、数据处理、特征提取与在线检测。首先，实验在环境复杂的实验室及相对空旷的会议室采集典型的日常行为动作的数据；然后，提取特征较为明显的振幅和相位数据，使用低通滤波对信号特征进行处理，得到一组稳定及无噪声干扰的数据；最后，有效建立指纹库，进行在线检测，利用 SVM 算法对采集到的数据特征进行分类，提取较为稳定的特征值，建立一个室内人员日常行为检测的分类模型，再与指纹库中的数据进行匹配。实验结果表明，所提方法具有高效率、高精度、顽健性较好等特点，且无需测试人员携带任何电子设备，实用性较高。

Abstract

The daily behavior detection of indoor human based on CSI is developing rapidly in the field of WSN.At present

most of the research is still in the environment of 2.4 GHz

so the detection rate

robustness and overall performance still need to be improved.In order to solve this problem

a passive indoor human behavior detection method HDFi (Human Detection with Wi-Fi) based on CSI signal was proposed.The method was used to detect the indoor human daily behavior in a 5 GHz band environment

which was divided into three steps:data acquisition

data processing

feature extraction

online detection.Firstly

the experiment collected typical daily behavioral data in complex laboratory and relatively empty meeting room.Secondly

the amplitude and phase data with more obvious features were extracted and processed by low-pass filtering to obtain a set of stable and noise-free data

and then the fingerprint database was established effectively.Finally

in the real-time detection stage

the collected data features were classified by SVM algorithm to extract more stable eigenvalues

and a classification model of indoor human daily behavior detection was established

and then matched the data in the fingerprint database.The experimental results show that the proposed method has the characteristics of high efficiency

high precision and good robustness

and the method does not need any testing personnel to carry any electronic equipment

so it has high practicability.

关键词

Keywords

references

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