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Chapter 15 - Principles and Techniques of RFID Positioning. Figure 15.1 Block diagram of an RFID positioning system. Figure 15.2 Ratio between the received power and the transmitted power. z. x. y. Reader antenna. Figure 15.3 (a) Simulated RSS in Free space. z. Reader antenna. x. y.
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Figure 15.2 Ratio between the received power and the transmitted power
z x y Reader antenna Figure 15.3 (a) Simulated RSS in Free space
z Reader antenna x y Figure 15.3 (b) Simulated RSS in Metallic cabinet at the side
z Reader antenna x y Figure 15.3 (c) Simulated RSS in Metallic cabinet at front
p1(x1,y1) p2(x2,y2) d1 d2 p(x,y) d3 p3(x3,y3) Figure 15.4 Tag positioning using trilateration
p(x,y) D β α p2(x2,y2) p1(x1,y1) Figure 15.5 Tag positioning using triangulation
p(x,y) pM(xM,yM) p1(x1,y1) y p2(x2,y2) x Figure 15.6 Tag positioning using triangulation with more than two reader antennas
p(x,y) d α p1(x1,y1) Figure 15.7 Tag positioning based on direction and range information