EP 1977268 A1 20081008 - DEVICE AND METHOD FOR MULTI-DIMENSIONAL LOCATION OF TARGET OBJECTS, IN PARTICULAR RFID TRANSPONDERS
Title (en)
DEVICE AND METHOD FOR MULTI-DIMENSIONAL LOCATION OF TARGET OBJECTS, IN PARTICULAR RFID TRANSPONDERS
Title (de)
VORRICHTUNG UND VERFAHREN ZUR MEHRDIMENSIONALEN ORTUNG VON ZIELOBJEKTEN, INSBESONDERE RFID-TRANSPONDERN
Title (fr)
DISPOSITIF ET PROCÉDÉ DE REPÉRAGE MULTIDIMENSIONNEL D OBJETS CIBLES, NOTAMMENT DE TRANSPONDEURS RFID
Publication
Application
Priority
- EP 2007050109 W 20070105
- DE 102006004023 A 20060127
Abstract (en)
[origin: WO2007085517A1] The present invention relates to a radio-based system for multi-dimensional location of a target object (2). A target object (2) may be, in particular, an RFID transponder. In this context, a base signal (4) is emitted by a base station (1) and is sent back by a back scatter transponder. A distance between the base station (1) and the transponder is determined by means of a frequency spacing ?F between two maximum values in the base band of the spectrum of a base signal (4), transmitted with a simultaneously received response signal (5) superimposed on it, from an antenna (3) of the base station (1). Phase evaluation is carried out in order to calculate a target deviation angle a<SUB>z </SUB>. Depending on the number and arrangement of the antennas (3) of the base station (1), a unidimensional, two-dimensional or three-dimensional locating process can be carried out.
IPC 8 full level
G01S 13/74 (2006.01); G01S 13/82 (2006.01); G01S 13/84 (2006.01)
CPC (source: EP US)
G01S 13/74 (2013.01 - EP US); G01S 13/82 (2013.01 - EP US); G01S 13/84 (2013.01 - EP US)
Citation (search report)
See references of WO 2007085517A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
WO 2007085517 A1 20070802; DE 102006004023 A1 20070809; EP 1977268 A1 20081008; US 2010231410 A1 20100916
DOCDB simple family (application)
EP 2007050109 W 20070105; DE 102006004023 A 20060127; EP 07703667 A 20070105; US 22308507 A 20070105