EP 0370544 A3 19901212 - TRAFFIC SURVEY SENSOR
Title (en)
TRAFFIC SURVEY SENSOR
Publication
Application
Priority
IT 2267288 A 19881121
Abstract (en)
[origin: EP0370544A2] A traffic survey sensor suitable for being located in a position above the surface to be controlled, say, with the use of a gate (1), is constituted by a radiation transmitter (2) and by a radiation receiver (5) arranged and oriented so that a radiation (8) emitted by transmitter (2) arrives at a pre-set point (9) of the surface to be controlled and is from here partially reflected towards receiver (5) so as to obtain by the reflected radiation (14) an effect on receiver (5) which may cease with the passage of a vehicle.
IPC 1-7
IPC 8 full level
G08G 1/04 (2006.01)
CPC (source: EP)
G08G 1/04 (2013.01)
Citation (search report)
- [X] GB 1187801 A 19700415 - EVR ECLAIRAGE VEHICULES RAIL [FR]
- [X] DE 3013950 A1 19811015 - KIENZLE APPARATE GMBH [DE]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0370544 A2 19900530; EP 0370544 A3 19901212; IT 1227370 B 19910408; IT 8822672 A0 19881121
DOCDB simple family (application)
EP 89202722 A 19891026; IT 2267288 A 19881121