The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2003
Filed:
Nov. 30, 2000
Applicant:
Inventor:
Helmut Uebel, Leonberg, DE;
Assignee:
Alcatel, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61L 2/300 ;
U.S. Cl.
CPC ...
B61L 2/300 ;
Abstract
A method and system of detecting obstacles on railroad lines. Sensors for observing the railroad line are arranged along the railroad line, and automatic evaluation takes place. One advantage of the invention is that the railroad lines are divided into given, known line sections, each of which is monitored by a respective sensor, whereby the evaluation process is simplified. If the sensors are designed as video cameras, for example, a comparison with still images may suffice for the evaluation. Furthermore, as the line sections re known, a simple masking technique can be used. Obstacles outside a set route to be monitored are masked out using suitable masks.