EP 0945840 A2 19990929 - Traffic law enforcement system
Title (en)
Traffic law enforcement system
Title (de)
Verfahren zur Überwachung der Verkehrsregelung
Title (fr)
Système de surveillance de la réglementation routière
Publication
Application
Priority
US 4727298 A 19980324
Abstract (en)
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. <IMAGE>
IPC 1-7
IPC 8 full level
G08G 1/017 (2006.01); G08G 1/052 (2006.01)
CPC (source: EP)
G08G 1/0175 (2013.01); G08G 1/052 (2013.01)
Citation (third parties)
Third party :
- WO 9319441 A1 19930930 - COMMW SCIENT IND RES ORG [AU], et al
- DE 3327706 A1 19850221 - RAPP EGBERT DIPL ING
- NL 1010490 C2 19990518 - NEDERLAND HAARLEM B V [NL]
- EP 0494815 A1 19920715 - RENAULT [FR]
- JP H09222432 A 19970826 - MITSUBISHI ELECTRIC CORP
- BE 1014680 A6 20040302 - LANGE PHILIPPE [BE]
- JP H10208188 A 19980807 - MITSUBISHI ELECTRIC CORP
- JP H10241093 A 19980911 - FUJI PHOTO FILM CO LTD
- ROBERTSON D.J.: "Electronics in managing the demand for road capacity", PROCEEDINGS OF THE 22ND EUROPEAN TRANSPORT FORUM, 12 September 1994 (1994-09-12) - 16 September 1994 (1994-09-16), pages 123 - 134, XP002987269
- ROBERTSON D.J.: "Speed violation deterrent system", PROCEEDINGS OF 7TH INT'L CONFERENCE ON ROAD TRAFFIC MONITORING AND CONTROL, 26 April 1994 (1994-04-26) - 28 April 1994 (1994-04-28), pages 119 - 122, XP006527816
- ROBERTSON D.J. AND DOWSON A.: "Image capture and automatic identification of vehicle registration plates", IEE COLLOQUIUM ON ELECTRON TECHNIQUES FOR ROAD PRICING AND TOLLING, 8 March 1995 (1995-03-08), pages 5/1 - 5/4, XP006528826
- ROBERTSON D.J.: "Speed violation deterrent system", 7TH INT'L CONF. ON ROAD TRAFFIC MONITORING AND CONTROL, 26 April 1994 (1994-04-26) - 28 April 1994 (1994-04-28), pages 119 - 122, XP006527816
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0945840 A2 19990929; EP 0945840 A3 20000906; EP 0945840 B1 20090603; AT E433175 T1 20090615; DE 69940936 D1 20090716; ES 2328095 T3 20091106; NZ 332266 A 20001222
DOCDB simple family (application)
EP 99105878 A 19990323; AT 99105878 T 19990323; DE 69940936 T 19990323; ES 99105878 T 19990323; NZ 33226698 A 19981009