Old goaf water disaster real-time monitoring system based on distributed fiber bragg grating

The invention discloses an old goaf water disaster real-time monitoring system based on a distributed fiber bragg grating, and belongs to the technical field of photoelectron measuring devices. The system comprises a fiber bragg grating water level sensor, a plurality of fiber bragg grating temperature sensors, a mining fiber bragg grating demodulator, an explosion-proof power supply, an optical cable, a plurality of switches, an industrial Ethernet, a server and a mobile phone module. According to the fiber grating demodulator, the wavelength-adjustable light source and the photosensitive diode detector are used, so that the cost is low; the system processes all monitoring data in real time and then stores the monitoring data in a classified mode, database storage backup is provided, and the monitoring data are permanently stored. The system has the functions of real-time monitoring tables, real-time curves, report statistics, historical curves, early warning and alarming and the like, and provides a printin