Sensors and Materials

ISSN (print) 0914-4935
ISSN (online) 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.

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Development of Smoke Detection System with Omnidirectional Telepresence

Tian-Syung Lan, Kai-Chi Chuang, I-Hsiung Chang, and Lie-Ping Zhang

(Received July 21, 2019; Accepted November 20, 2019)

Keywords: smoke detection, optical flow, omnidirectional projecting, omnidirectional camera, omnidirectional image

In this study, we developed a telepresence smoke detection system, with which personnel in a control center can learn about the relative positions of firefighters and fire sources at fire scene. Using an omnidirectional projecting system, such personnel can communicate with firefighters and assist them in shortening the time required for fire suppression. Conventional smoke detection systems rely heavily on multiple surveillance cameras and smoke detectors. However, conventional cameras in such systems are unable to take 360° images unless multiple cameras are equipped to monitor the entire fire scene. In addition, detectors are easily damaged by high temperatures. In this study, we employed an omnidirectional camera to take images of a fire scene elsewhere and send these images back to the control center through WiFi transmission. An omnidirectional projecting system was then used to present the real-time fire scene images on 360° cylindrical projection screen. Finally, the Lucas–Kanade optical flow algorithm was used to accurately mark the fire source location. The proposed telepresence smoke detection system can present a complete fire scene and determine the accurate location of a fire source, allowing the emergency response center to provide precise information for on-site firefighters to shorten the time needed for fire suppression and increase the escape time.

Corresponding author: Lie-Ping Zhang