Fire Source Localization Based on Distributed Temperature Sensing by a Dual-Line Optical Fiber System.

Area of Science:

• Engineering
• Sensor Technology
• Fire Safety

Background:

• Accurate fire source localization is critical for effective emergency response and safety management.
• Traditional methods may face limitations in complex environments or over extended ranges.

Purpose of the Study:

• To develop and validate a novel method for three-dimensional fire source localization.
• To utilize optical fiber distributed temperature sensing for enhanced fire detection and location.

Main Methods:

• Installation of two parallel optical fibers as a sensing element near the ceiling of a closed room.
• Measurement of hot air flow temperatures to infer fire source location.
• Experimental verification using a controlled alcohol fire source.

Main Results:

• Successful three-dimensional localization of the fire source was achieved.
• The method demonstrated robustness and reliability in experimental settings.
• Effective performance was observed for long sensing ranges.

Conclusions:

• The proposed optical fiber distributed temperature sensing method offers a robust and reliable solution for fire source localization.
• This technique has practical implications for improving fire safety systems in various environments.