关键词: 分布式光纤； 后向拉曼散射； Qt； 火灾探测； MySQL数据库

Abstract:

A monitoring software of the host computer based on distributed optical fiber fire detection is designed, which can observe real-time temperature laying optical cable, and realize realtime alarming according to the temperature. The basic principles of distributed fiber optic sensing system, structure and optimization design of signal acquisition module of the distributed optical fiber sensing system are introduced, focusing on the PC monitoring software structure and function, and writing PC software with Qt. This system can monitor and accurately display the spatial temperature distribution of the fiber optic fiber, and has the characteristics of friendly interface, strong real-time and so on.

Key words: distributed fiber; Raman-scattering; Qt; fire detection； MySQL databases