Global Patent Index - EP 0976640 A3

EP 0976640 A3 2000-02-23 - 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 A3 (FR)

Application

EP 99401857 A

Priority

FR 9809790 A

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 (main, further and additional classification)

B61L 29/00

IPC 8 full level (invention and additional information)

B61L 29/00 (2006.01)

CPC (invention and additional information)

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

Citation (search report)

  • [Y] DE 19621612 A1 19971211 - C VIS COMPUTER VISION UND AUTO [DE]
  • [A] US 5331312 A 19940719 - KUDOH KATSUHIRO [JP]
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 098, no. 011 30 September 1998 (1998-09-30)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 014, no. 285 (M - 0987) 20 June 1990 (1990-06-20)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 017, no. 370 (M - 1444) 13 July 1993 (1993-07-13)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 097, no. 012 25 December 1997 (1997-12-25)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 018, no. 335 (M - 1627) 24 June 1994 (1994-06-24)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 096, no. 005 31 May 1996 (1996-05-31)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 212 (M - 0969) 2 May 1990 (1990-05-02)

Designated contracting state (EPC)

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

EPO simple patent family

EP 0976640 A2 20000202; EP 0976640 A3 20000223; EP 0976640 B1 20041006; AT 278591 T 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

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