Pipeline leakage monitoring method based on fiber bragg grating temperature measurement technology

The invention discloses a pipeline leakage monitoring method based on a fiber bragg grating temperature measurement technology, which comprises the steps: a V-shaped groove for receiving water drops in the bottom surface of a conveying pipeline is laid, and a fiber bragg grating is laid in a groove surface in the V-shaped groove; a light source of an optical fiber monitoring system transmits signals to optical fibers in the first step through an amplifier, and abnormal signals caused by temperature changes in the transmission process are sensed through back Rayleigh scattering signals generated when laser is transmitted in the optical fibers and the arrangement position of the fiber bragg grating; and abnormal pulse information obtained in the step 2 is transmitted to a monitoring terminal, the abnormal pulse information is independently compared with pulse signals normally transmitted by optical fibers and recorded in the monitoring terminal, and pipeline leakage monitoring is achieved. According to the pipe