Global Patent Index - EP 0976640 B1

EP 0976640 B1 20041006 - Anti-collision system for level crossing

Title (en)

Anti-collision system for level crossing

Title (de)

Kollisionsschutzsystem für Bahnübergang

Title (fr)

Système anti-collision pour passage à niveau

Publication

EP 0976640 B1 20041006 (FR)

Application

EP 99401857 A 19990722

Priority

FR 9809790 A 19980730

Abstract (en)

[origin: EP0976640A2] The level crossing, equipped with train approach warning devices (22, 24) and half-barriers (14, 16), also has video cameras (26, 28, 30, 32) mounted on poles to provide image information to a computer (34). Image analysis software, including stereoscopic processing, is used to determine the nature of any obstacle on the crossing and a controller (36) then sends speed control or braking commands as necessary to an approaching train via the usual track communication link (40). Preferably, pixels received from the video cameras are compared with at least one threshold value to determine obstacle contour.

IPC 1-7

B61L 29/00

IPC 8 full level

B61L 29/00 (2006.01)

CPC (source: EP)

B61L 23/041 (2013.01); B61L 29/30 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0976640 A2 20000202; EP 0976640 A3 20000223; EP 0976640 B1 20041006; AT E278591 T1 20041015; DE 69920829 D1 20041111; DE 69920829 T2 20051013; DK 0976640 T3 20050214; ES 2230819 T3 20050501; FR 2781744 A1 20000204; FR 2781744 B1 20021129; PT 976640 E 20050228

DOCDB simple family (application)

EP 99401857 A 19990722; AT 99401857 T 19990722; DE 69920829 T 19990722; DK 99401857 T 19990722; ES 99401857 T 19990722; FR 9809790 A 19980730; PT 99401857 T 19990722