(19)
(11) EP 0 945 840 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.09.2000 Bulletin 2000/36

(43) Date of publication A2:
29.09.1999 Bulletin 1999/39

(21) Application number: 99105878.5

(22) Date of filing: 23.03.1999
(51) International Patent Classification (IPC)7: G08G 1/052, G08G 1/017
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 24.03.1998 US 47272

(71) Applicant: Moetteli, John, B.
1203 Geneva (CH)

(72) Inventor:
  • Moetteli, John, B.
    1203 Geneva (CH)

   


(54) Traffic law enforcement system


(57) A traffic law enforcement system having two or more enforcement units and at least one central computer connected via network devices. The enforcement units are spaced apart a given distance and each has a license plate reader. The central computer receives inputs from the enforcement units, including identifying indicia, such as license plate numbers of passing vehicles. The enforcement units and the central computer cooperate to calculate an average velocity of a vehicle which passes between enforcement units by using the inputs of a) minimum-travel-time-drivable distance between enforcement units which transmitted matching identifying indicia, b) posted speed limit data between enforcement units which transmitted matching license plate numbers, and c) time lapsed between the transmission of the matching identifying indicia to the central computer. After a predetermined amount of time, unmatching vehicle information is erased.






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