BigPatents India

A warning system for reporting activities on and conditions of a railway, comprising: an acoustic sensor circuit coupled to the rail for detecting sound waves resulting from physical vibrations thereon; and an acoustic analyzer unit coupled to said acoustic sensor circuit for analyzing said detected sound waves to identify the activities on and conditions of the railway, and for generating an alarm indicating a hazardous condition on the railway. A method for reporting suspicious conditions on a railway, comprising the steps of: a) monitoring the railway to detect sound waves resulting from physical vibrations thereon; b) analyzing said detected sound waves to identify a detected condition on the railway; c) generating an alarm if said detected condition indicates a predetermined suspicious condition on the railway; and d) processing said detected sound waves having a said detected condition indicating a predetermined suspicious condition to store said detected sound waves in a sound file.