Real-Time Early Indoor Fire Detection and Localization on Embedded Platforms with Fully Convolutional One-Stage Object Detection

Yimang Li, Jingwei Shang (), Meng Yan, Bei Ding and Jiacheng Zhong
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Yimang Li: School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China
Jingwei Shang: Ministry of Industry and Information Technology, CEPREI, Guangzhou 510610, China
Meng Yan: School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China
Bei Ding: School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China
Jiacheng Zhong: School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China

Sustainability, 2023, vol. 15, issue 3, 1-12

Abstract: Fire disasters usually cause significant damage to human lives and property. Thus, early fire detection and localization in real time are crucial in minimizing fire disasters and reducing ecological losses. Studies of convolution neural networks (CNNs) show their capabilities in image processing tasks such as image classification, visual recognition, and object detection. Using CNNs for fire detection could improve detection accuracy. However, the high computational cost of CNNs requires an extensive training model size, making it difficult to deploy to resource-constrained edge devices. Moreover, the large size of the training model is challenging for real-time object detection. This paper develops a real-time early indoor fire-detection and -localization system that could be deployed on embedded platforms such as Jetson Nano. First, we propose a fully convolutional one-stage object detection framework for fire detection with real-time surveillance videos. The combination of backbone, path aggregation network, and detection head with generalized focal loss is used in the framework. We evaluate several networks as backbones and select the one with balanced efficiency and accuracy. Then we develop a fire localization strategy to locate the fire with two cameras in the indoor setting. Results show that the proposed architecture can achieve similar accuracy compared with the Yolo framework but using one-tenth of the model size. Moreover, the localization accuracy could be achieved within 0.7 m.

Keywords: fire detection; embedded systems; convolutional neural networks (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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