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Camera-based window-opening estimation in a naturally ventilated office

Camera-based window-opening estimation in a naturally ventilated office
Camera-based window-opening estimation in a naturally ventilated office
Naturally ventilated offices enable users to control their environment through the opening of windows. Whilst this level of control is welcomed by users it creates risk in terms of energy performance, especially during the heating season. In older office buildings, facilities managers usually obtain energy information at the building level. They are often unaware or unable to respond to non-ideal facade interaction by users often as a result of poor environmental control provision. In the summer months, this may mean poor use of free cooling opportunities, whereas in the winter, space heating may be wasteful. This paper describes a low cost, camera based system to automatically diagnose the status of each window (open or closed) in a facade. The system is shown to achieve a window status prediction accuracy level of 90%-97% across both winter and summer test periods in a case study building. A number of limitations are discussed including winter daylight hours, impact of rain and the use of fixed camera locations and how these may be addressed. Options to use this window opening information to engage with office users are explored.
0961-3218
1-16
Bourikas, Leonidas
5faf69fc-1b5a-4613-ae9f-cd135092af9c
Costanza, Enrico
0868f119-c42e-4b5f-905f-fe98c1beeded
Gauthier, Stephanie
4e7702f7-e1a9-4732-8430-fabbed0f56ed
James, Patrick
da0be14a-aa63-46a7-8646-a37f9a02a71b
Kittley-Davies, Jacob
d8547042-797e-4566-a0e9-1ab5e50f5040
Ornaghi, Carmine
33275e47-4642-4023-a195-39c91d0146b0
Rogers, Alexander
f9130bc6-da32-474e-9fab-6c6cb8077fdc
Saadatian, Elham
3463f63f-66a9-4cac-88e5-472539d01d05
Huang, Yitong
d92b46f9-e3a8-45e2-b855-2030d9e899d4
Bourikas, Leonidas
5faf69fc-1b5a-4613-ae9f-cd135092af9c
Costanza, Enrico
0868f119-c42e-4b5f-905f-fe98c1beeded
Gauthier, Stephanie
4e7702f7-e1a9-4732-8430-fabbed0f56ed
James, Patrick
da0be14a-aa63-46a7-8646-a37f9a02a71b
Kittley-Davies, Jacob
d8547042-797e-4566-a0e9-1ab5e50f5040
Ornaghi, Carmine
33275e47-4642-4023-a195-39c91d0146b0
Rogers, Alexander
f9130bc6-da32-474e-9fab-6c6cb8077fdc
Saadatian, Elham
3463f63f-66a9-4cac-88e5-472539d01d05
Huang, Yitong
d92b46f9-e3a8-45e2-b855-2030d9e899d4

Bourikas, Leonidas, Costanza, Enrico, Gauthier, Stephanie, James, Patrick, Kittley-Davies, Jacob, Ornaghi, Carmine, Rogers, Alexander, Saadatian, Elham and Huang, Yitong (2016) Camera-based window-opening estimation in a naturally ventilated office. Building Research & Information, 1-16. (doi:10.1080/09613218.2016.1245951).

Record type: Article

Abstract

Naturally ventilated offices enable users to control their environment through the opening of windows. Whilst this level of control is welcomed by users it creates risk in terms of energy performance, especially during the heating season. In older office buildings, facilities managers usually obtain energy information at the building level. They are often unaware or unable to respond to non-ideal facade interaction by users often as a result of poor environmental control provision. In the summer months, this may mean poor use of free cooling opportunities, whereas in the winter, space heating may be wasteful. This paper describes a low cost, camera based system to automatically diagnose the status of each window (open or closed) in a facade. The system is shown to achieve a window status prediction accuracy level of 90%-97% across both winter and summer test periods in a case study building. A number of limitations are discussed including winter daylight hours, impact of rain and the use of fixed camera locations and how these may be addressed. Options to use this window opening information to engage with office users are explored.

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More information

Accepted/In Press date: 5 October 2016
e-pub ahead of print date: 28 October 2016
Organisations: Energy & Climate Change Group

Identifiers

Local EPrints ID: 404841
URI: https://eprints.soton.ac.uk/id/eprint/404841
ISSN: 0961-3218
PURE UUID: 3a088ad0-55ad-44a4-add5-cab2423e3cdd
ORCID for Leonidas Bourikas: ORCID iD orcid.org/0000-0002-5289-2157
ORCID for Stephanie Gauthier: ORCID iD orcid.org/0000-0002-1720-1736

Catalogue record

Date deposited: 24 Jan 2017 10:40
Last modified: 06 Feb 2018 05:01

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Contributors

Author: Leonidas Bourikas ORCID iD
Author: Enrico Costanza
Author: Patrick James
Author: Jacob Kittley-Davies
Author: Carmine Ornaghi
Author: Elham Saadatian
Author: Yitong Huang

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