An activity recognition system at home based on illuminance sensors

IF 0.5 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Electronics and Communications in Japan Pub Date : 2023-08-28 DOI:10.1002/ecj.12423

Hiroyuki Matsubara

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引用次数: 1

Abstract

A social issue that leads to the safety and security of people is the network that monitors the safety of people living alone in remote areas. Various research and developments of indoor human activity recognition using IoT sensor nodes have been conducted in recent years. In this research, we focus on turning on and off indoor lighting and propose an activity recognition system at home using an illuminance sensor. An IoT sensor node with a built-in illuminance sensor is attached to the wall near the indoor lighting equipment. The living activities of people in the room are estimated from changes in the illuminance. We assume a significant change in the illuminance of the indoor lighting is observed at least once a day at the sampling interval of the IoT sensor node. In that case, it is possible to estimate the operation of the indoor lighting due to daily activities and to confirm the safety of people living alone in remote areas. The activity recognition system was evaluated for a total of 380 days, excluding the missing period. The estimation of indoor lighting manipulation by daily activities was accurate for 376 days. Precision, Recall, and F-measure score values, which are evaluation indices for activity estimation, were 94.9%, 98.2%, and 96.5%, respectively.

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一种基于照度传感器的家庭活动识别系统

对偏远地区独居者的安全进行监控的网络是导致人们的安全和保障的社会问题。近年来，利用物联网传感器节点进行室内人体活动识别的各种研究和开发。在这项研究中，我们专注于打开和关闭室内照明，并提出了一种使用照度传感器的家庭活动识别系统。内置照度传感器的物联网传感器节点安装在室内照明设备附近的墙上。通过室内照度的变化来估计室内人的生活活动。我们假设在物联网传感器节点的采样间隔内，每天至少观察到一次室内照明照度的显著变化。在这种情况下，可以估计由于日常活动而导致的室内照明的运行情况，并确认偏远地区独居者的安全。活动识别系统评估共380天，不包括缺失期。在376天内，日常活动对室内照明操纵的估计是准确的。精密度(Precision)、召回率(Recall)和F-measure得分值(F-measure score values)分别为94.9%、98.2%和96.5%。

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来源期刊

Electronics and Communications in Japan 工程技术-工程：电子与电气

CiteScore

0.60

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Electronics and Communications in Japan (ECJ) publishes papers translated from the Transactions of the Institute of Electrical Engineers of Japan 12 times per year as an official journal of the Institute of Electrical Engineers of Japan (IEEJ). ECJ aims to provide world-class researches in highly diverse and sophisticated areas of Electrical and Electronic Engineering as well as in related disciplines with emphasis on electronic circuits, controls and communications. ECJ focuses on the following fields: - Electronic theory and circuits, - Control theory, - Communications, - Cryptography, - Biomedical fields, - Surveillance, - Robotics, - Sensors and actuators, - Micromachines, - Image analysis and signal analysis, - New materials. For works related to the science, technology, and applications of electric power, please refer to the sister journal Electrical Engineering in Japan (EEJ).

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