Global Patent Index - EP 1290464 A1

EP 1290464 A1 20030312 - METHOD AND DEVICE FOR OPTO-ELECTRONICALLY DETERMINING THE POSITION OF AN OBJECT

Title (en)

METHOD AND DEVICE FOR OPTO-ELECTRONICALLY DETERMINING THE POSITION OF AN OBJECT

Title (de)

VERFAHREN UND VORRICHTUNG ZUR OPTOELEKTRONISCHEN POSITIONSBESTIMMUNG EINES GEGENSTANDES

Title (fr)

PROCEDE ET DISPOSITIF POUR DETERMINER LA POSITION D'UN OBJET PAR OPTOELECTRONIQUE

Publication

EP 1290464 A1 20030312 (DE)

Application

EP 01940480 A 20010516

Priority

  • DE 10024156 A 20000519
  • EP 0105545 W 20010516

Abstract (en)

[origin: WO0190770A1] The invention relates to a method and a device for opto-electronically determining the position of an object (50) using a measurement assembly, which is separated from the object (50) by a medium (31, 52) that is permeable to at least one type of specific radiation. The measurement assembly consists of at least one active sensor zone (S) in the medium comprising at least two measuring paths (x, y), which are maintained by at least two radiation sources (1, 3) that emit the specified radiation and by at least one radiation receiver (2) that is allocated to the radiation sources. Said receiver determines the reflection (53) returned by the object (50) to generate a detection signal which corresponds to the received radiation. A specified radiation is emitted using the radiation sources (1, 3) and the reflection (53) returned by the object (50) is detected, in order to allocate initial values (U(t), UR(d)) to the individual measuring paths. The invention is characterised in that an evaluation unit (55) determines the position and/or displacement of the object (50) by determining a specified angular curve of the object in relation to the radiation sources (1, 3, 57) from the initial value (UR(T), UR(d)), for a known spatial relationship between the radiation sources. This allows the position and/or displacement of an object to be opto-electronically detected in a simple and practical manner.

IPC 1-7

G01S 3/783; G01S 5/16; G01S 17/06; G01S 17/87; H03K 17/78

IPC 8 full level

G01S 3/783 (2006.01); G01S 5/16 (2006.01); G01S 17/06 (2006.01); G01S 17/87 (2020.01); G01S 7/487 (2006.01)

CPC (source: EP US)

G01S 3/783 (2013.01 - EP US); G01S 5/16 (2013.01 - EP US); G01S 17/06 (2013.01 - EP US); G01S 17/87 (2013.01 - EP US); G01S 7/487 (2013.01 - EP US); G01S 7/497 (2013.01 - EP US)

Citation (search report)

See references of WO 0190770A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0190770 A1 20011129; AU 7403901 A 20011203; DE 10024156 A1 20011129; EP 1290464 A1 20030312; JP 2003534554 A 20031118; US 2003155487 A1 20030821; US 6953926 B2 20051011

DOCDB simple family (application)

EP 0105545 W 20010516; AU 7403901 A 20010516; DE 10024156 A 20000519; EP 01940480 A 20010516; JP 2001586483 A 20010516; US 27658202 A 20021118