AVALANCHE AND LANDSLIDES PREVENTION MONITORING SYSTEM WITH FBG SENSORS

摘要

An avalanche and landslide prevention monitoring method (100) comprises steps of: - (102) providing at least one fiber optic conductor (12) comprising a plurality of FBG sensors (14), arranged along a slope (90); - (104) providing a light signal at one end of said fiber optic conductor; - (106) acquiring at the input in real time at least one light signal reflected by one or more FBG sensors (14); -(108) processing the wavelength changing signal as a function of the time of the reflected light signal by means of a computer or CPU; (110) obtain three-dimensional maps of state parameters of the snowpack or of the soil as output; - (112) generate an alarm or an imminent avalanche or landslide signal in response to exceeding certain threshold values of the status parameters. The invention also includes an avalanche prevention monitoring apparatus (10) which implements the method (100).