Global Patent Index - EP 3225498 A1

EP 3225498 A1 20171004 - SYSTEM AND METHOD FOR MEASURING THE SPEED OF A GUIDED VEHICLE AND THE DISTANCE TRAVELLED BY THE LETTER

Title (en)

SYSTEM AND METHOD FOR MEASURING THE SPEED OF A GUIDED VEHICLE AND THE DISTANCE TRAVELLED BY THE LETTER

Title (de)

SYSTEM UND VERFAHREN ZUR GESCHWINDIGKEITSMESSUNG EINES GEFÜHRTEN FAHRZEUGS UND DER VON IHM ZURÜCKGELEGTEN STRECKE

Title (fr)

SYSTÈME ET PROCÉDÉ POUR MESURER LA VITESSE D'UN VÉHICULE GUIDÉ ET LA DISTANCE PARCOURUE PAR CE DERNIER

Publication

EP 3225498 A1 20171004 (EN)

Application

EP 16380014 A 20160331

Priority

EP 16380014 A 20160331

Abstract (en)

The present invention concerns a system (1) and a method for determining the speed of a guided vehicle (2) and/or the distance travelled by said guided vehicle (2), the latter being guided along a route by at least one rail (3), the system (1) comprising: - a laser beam emitter (11) configured for emitting a pulsed laser beam (111) aligned with a first direction (D1) configured for pointing to a first location on a rail surface (31); - at least one IR detector (12, 13) configured for having a field of view (F21, F22) aligned with a second direction (D21, D22) in order to point to a second location on the rail surface (31) when the system (1) is installed onboard the guided vehicle (2) and the latter is guided by said rail (3) along said route, wherein the second location is separated from the first location by a predefined distance ”X; - a processing unit (14) configured for determining the distance travelled by the guided vehicle (2) and/or its speed from the predefined distance ”X, a signal D (SD1, SD2) related to a detection by the IR detector (12, 13 respectively) of a warm spot at interaction area (I1, 12, 13) of the laser beam pulse with the rail surface (31) and control parameters related to the pulses emitted by the laser beam emitter (11).

IPC 8 full level

B61L 25/02 (2006.01)

CPC (source: EP)

B61L 25/021 (2013.01); B61L 25/026 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3225498 A1 20171004; EP 3225498 B1 20210113; ES 2861448 T3 20211006; PT 3225498 T 20210212

DOCDB simple family (application)

EP 16380014 A 20160331; ES 16380014 T 20160331; PT 16380014 T 20160331