Estimation method of the number of people in a room by using environmental sensors

Tomokazu Tachikawa; Hiroaki Nishi

doi:10.3130/aije.75.355

Estimation method of the number of people in a room by using environmental sensors

Tomokazu Tachikawa, Hiroaki Nishi

Department of System Design Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The estimation of the number of people is useful for various situations. In this paper, hybrid estimation method of the number of people in a room is proposed. This estimation method is achieved by using CO₂ sensor and motion sensor. Adaptive adjusting method of hold time for motion sensor is also proposed for its self-calibration. Proposed method was implemented on an energy management system and evaluated in a classroom environment. This evaluation proves that proposed method can improve the precision from 0.9 in the previous method to 0.4 in the proposed method at the number of people.

Original language	English
Pages (from-to)	355-362
Number of pages	8
Journal	Journal of Environmental Engineering
Volume	75
Issue number	650
DOIs	https://doi.org/10.3130/aije.75.355
Publication status	Published - 2010 Apr

Keywords

CO concentration sensor
Energy management system
Estimation method of the number of people
Motion sensor

ASJC Scopus subject areas

Environmental Engineering

Access to Document

10.3130/aije.75.355

Fingerprint Dive into the research topics of 'Estimation method of the number of people in a room by using environmental sensors'. Together they form a unique fingerprint.

Cite this

@article{b837682d2a8541c5aef8ff5dade4e248,

title = "Estimation method of the number of people in a room by using environmental sensors",

abstract = "The estimation of the number of people is useful for various situations. In this paper, hybrid estimation method of the number of people in a room is proposed. This estimation method is achieved by using CO2 sensor and motion sensor. Adaptive adjusting method of hold time for motion sensor is also proposed for its self-calibration. Proposed method was implemented on an energy management system and evaluated in a classroom environment. This evaluation proves that proposed method can improve the precision from 0.9 in the previous method to 0.4 in the proposed method at the number of people.",

keywords = "CO concentration sensor, Energy management system, Estimation method of the number of people, Motion sensor",

author = "Tomokazu Tachikawa and Hiroaki Nishi",

year = "2010",

month = apr,

doi = "10.3130/aije.75.355",

language = "English",

volume = "75",

pages = "355--362",

journal = "Journal of Environmental Engineering (Japan)",

issn = "1348-0685",

publisher = "Architectural Institute of Japan",

number = "650",

}

TY - JOUR

T1 - Estimation method of the number of people in a room by using environmental sensors

AU - Tachikawa, Tomokazu

AU - Nishi, Hiroaki

PY - 2010/4

Y1 - 2010/4

N2 - The estimation of the number of people is useful for various situations. In this paper, hybrid estimation method of the number of people in a room is proposed. This estimation method is achieved by using CO2 sensor and motion sensor. Adaptive adjusting method of hold time for motion sensor is also proposed for its self-calibration. Proposed method was implemented on an energy management system and evaluated in a classroom environment. This evaluation proves that proposed method can improve the precision from 0.9 in the previous method to 0.4 in the proposed method at the number of people.

AB - The estimation of the number of people is useful for various situations. In this paper, hybrid estimation method of the number of people in a room is proposed. This estimation method is achieved by using CO2 sensor and motion sensor. Adaptive adjusting method of hold time for motion sensor is also proposed for its self-calibration. Proposed method was implemented on an energy management system and evaluated in a classroom environment. This evaluation proves that proposed method can improve the precision from 0.9 in the previous method to 0.4 in the proposed method at the number of people.

KW - CO concentration sensor

KW - Energy management system

KW - Estimation method of the number of people

KW - Motion sensor

UR - http://www.scopus.com/inward/record.url?scp=79956150416&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79956150416&partnerID=8YFLogxK

U2 - 10.3130/aije.75.355

DO - 10.3130/aije.75.355

M3 - Article

AN - SCOPUS:79956150416

VL - 75

SP - 355

EP - 362

JO - Journal of Environmental Engineering (Japan)

JF - Journal of Environmental Engineering (Japan)

SN - 1348-0685

IS - 650

ER -

Estimation method of the number of people in a room by using environmental sensors

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this