Method and apparatus for detecting railway activity

Details Method and apparatus for detecting railway activity Method and apparatus for detecting railway activity

1996-06-26

1998-02-03

Morano, S. Joseph

Railway switches and signals

Roadway-defect protection

Electric

246167R, 73587, 73645, B61L 2304

Patent

active

057135401

ABSTRACT:
A highly reliable early warning system that can provide efficient detection of railway activity and early warning of dangerous railway conditions to train operators and to central dispatch control offices. The warning system has an acoustic sensor circuit coupled to the railway for detecting sound waves resulting from physical vibrations thereon, an acoustic analyzer unit for analyzing the sound waves detected on the railway to identify any suspect conditions thereon and to generate an alarm if such a suspect condition is identified, and an acoustic signal processing unit for storing detected sound waves in a sound file for quick retrieval and analysis. The alarm signal may be transmitted over any communications system to the central control office and to trains traveling on the dangerous track. The stored sound files may be locally retrieved or downloaded to a remote location over a cellular system, thus enabling the analysis of the actual sound generated by the dangerous condition to determine the cause therefore.

REFERENCES:
patent: 4235112 (1980-11-01), Kaiser
patent: 4578665 (1986-03-01), Yang
patent: 4752053 (1988-06-01), Boetzkes
patent: 5289183 (1994-02-01), Hassett et al.
patent: 5429329 (1995-07-01), Wallace et al.
patent: 5445347 (1995-08-01), Ng
patent: 5529267 (1996-06-01), Giras et al.

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