Research on Fire Detection System based on Fiber Bragg Grating Direct Cabling 

Junwei Dong1*, Weiping Liu2, Cui Tian1, Xida Ye1 

1Technology Research and Development Department, Nanjing Pinao Photoelectric Technology Co., Ltd., NanJing, 210000, China 

2College of Information Science and Technology, Jinan University, Guangzhou, 510000, China 

Abstract: Fiber Bragg Grating (FBG) is directly made into low-cost and high-efficiency cable with tempera-ture detection function without secondary packaging. Using the linear relationship between the reflected wa-velength of FBG and temperature in the cable, the temperature is calculated, and the alarm of fixed tempera-ture, differential temperature and consistency is determined by software. This system is realized through the design of optical cable structure and algorithm. 

Keywords: Fiber bragg grating; Direct cabling; Fixed temperature; Differential temperature