EP 0945840 A3 20000906 - 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)
[origin: EP0945840A2] 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 (search report)
- [YA] US 5528234 A 19960618 - MANI SIVA A [US], et al
- [YA] US 5602375 A 19970211 - SUNAHARA SHUICHI [JP], et al
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 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