Device and Method for Multi-Dimensional Location of Target Objects, In Particular Rfid Transponders
1 Assignment
0 Petitions
Accused Products
Abstract
A radio-based system and a method for multi-dimensional location of a target object are provided. A target object may be, in particular, an RFID transponder. In this context, a base signal is emitted by a base station and is sent back by a back scatter transponder. A distance between the base station and the transponder is determined by means of a frequency spacing ΔF between two maximum values in the base band of the spectrum of a base signal, transmitted with a simultaneously received response signal superimposed on it, from an antenna of the base station. Phase evaluation is carried out in order to calculate a target deviation angle αz. Depending on the number and arrangement of the antennas of the base station, a unidimensional, two-dimensional or three-dimensional locating process can be carried out.
-
Citations
28 Claims
-
1-13. -13. (canceled)
-
14. A radio-based system for the multi-dimensional location of a target object, comprising:
-
a base station with a plurality of antennas that transmits base signals and/or receives response signals; a target object that receives the base signals and emits response signals; a first facility detects one-dimensional of the distance from the base station to the target object; and a second facility detections a deviation angle of the target object, wherein the plurality of antennas include a first antenna and a second antenna arranged adjacently, and wherein an interval is arranged between the adjacent antennas. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A method for using a radio-based system for the multi-dimensional location of a target object, comprising:
-
detecting a distance from a base station to the target object, the base station having a plurality of antennas that transmit a base signal and a receives response signal, the target object receives the base signal and emits a response signal; and detecting of a deviation angle of the target object, wherein the plurality of antennas include a first antenna and a second antenna arranged adjacently, and wherein an interval is arranged between the adjacent antennas. - View Dependent Claims (27, 28)
-
Specification