(19)
(11) EP 0 347 090 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.03.1991 Bulletin 1991/11

(43) Date of publication A2:
20.12.1989 Bulletin 1989/51

(21) Application number: 89305713.3

(22) Date of filing: 07.06.1989
(51) International Patent Classification (IPC)4: G08G 1/10
(84) Designated Contracting States:
AT BE CH DE ES FR GR IT LI LU NL SE

(30) Priority: 15.06.1988 GB 8814175

(71) Applicant: EEV LIMITED
Chelmsford, Essex, CM1 2QU (GB)

(72) Inventors:
  • Holtom, Ralph
    Writtle Chelmsford Essex CM1 3JL (GB)
  • Morcom, Christopher John
    Maldon Essex CM9 6UP (GB)

(74) Representative: Cockayne, Gillian et al
GEC Patent Department Waterhouse Lane
Chelmsford, Essex CM1 2QX
Chelmsford, Essex CM1 2QX (GB)


(56) References cited: : 
   
       


    (54) Vehicle monitoring system


    (57) A vehicle monitoring system, e.g. for identifying automatically vehicles exceeding a maximum speed limit, comprises a video camera (14) for capturing a video frame at any instant; vehicle detecting means, for example a radar (13), responsive to the presence of a moving vehicle (10) to trigger the camera (14) to capture a video frame at an instant when the image of an identification mark (e.g. a bar code 11b on the number plate) would appear at a predetermined position within that video frame; a temporary frame store (16) for the captured video frame; and on-line data processing means (17) programmed to identify the image of the identification mark in the frame store and to produce in real time an output signal (18) representing uniquely the detected vehicle.







    Search report