BLOCKING READER: DESIGN AND IMPLEMENTATION OF A ...

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7.5.3 Blocking Envelope around the Blocking Reader In the setup show in the Figure 7.13 the Sirit Reader and Blocker Reader is fixed with distance between them 2.1m. The Tag is moved around the Blocker Reader to not the maximum blocking distance. The value of the Vapc is 2.6V hence the Blocking Reader is radiating a power of about +21dBm. Here at each angle of 30 degree the Tag is moved closer and away from the Blocking Reader and a maximum distance where the Sirit Reader just starts to read is noted down. Figure 7.13. Setup illustrating blocking envelope around Blocking Reader. 82
7.5.4 Results The results of the experimental setup shown in the Figure 7.13 is plotted in the polar graph as shown in the Figure 7.14. Here we can see that the Blocking Reader has created an envelope around inside which the Tag is blocked from any communication from other readers. Figure 7.14. Blocking envelope around the Blocking Reader. 83
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BLOCKING READER: DESIGN AND IMPLEME
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To my Mother Kantha and my Father K
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lot of freedom to explore. For all
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worn on a person’s body, my low-c
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2.4 Magnetic Field . . . . . . . .
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7.2 Tag Response . . . . . . . . .
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LIST OF FIGURES Figure Page 1.1 Pot
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7.15 Setup illustrating blocking en
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1.1 Introduction CHAPTER 1 INTRODUC
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Figure 1.1. Potential consumer priv
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Blocking Reader uses inventory roun
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in practice in jails where they wan
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1.6 Summary It is surprising that a
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Figure 2.1. A Typical RFID System.
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2.3.1 Gauss’s theorem of Electric
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2.4.2 Gauss’s theorem of magnetic
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Figure 2.3. RFID Reader antenna (pi
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Figure 2.7. Gain pattern of alien s
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2.8 Multipath The term multipath de
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3.1 Introduction CHAPTER 3 THEORY O
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that channel. So its filter block w
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4.1 Introduction CHAPTER 4 ISO 1800
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• Select: This is a command used
Page 47 and 48: Table 4.1. RF Envelope Parameters [
Page 49 and 50: 4.3.2.5 Data encoding The Reader to
Page 51 and 52: 4.3.2.7 Frequency-Hopping Spread-Sp
Page 53 and 54: the Query specifies TRcal. These pa
Page 55 and 56: Table 4.5. Commands [3] Command Cod
Page 57 and 58: Table 4.9. QueryAdjust command [3]
Page 59 and 60: 5.1 Introduction CHAPTER 5 READER A
Page 61 and 62: Each objective has its own challeng
Page 63 and 64: Figure 5.2. Architecture of Duo-PIC
Page 65 and 66: Table 5.2. Duo-PIC separate TX-RX u
Page 67 and 68: of the advantages like reduced cots
Page 69 and 70: 80C51F320 micro-controller being a
Page 71 and 72: 6.1 Introduction CHAPTER 6 IMPLEMEN
Page 73 and 74: Some Analog and Digital Features of
Page 75 and 76: 6.2.2.1 Application Circuit The app
Page 77 and 78: 6.2.2.2 Radio Control The transceiv
Page 79 and 80: Figure 6.4. Packet format of CC1101
Page 81 and 82: The center frequency is selected to
Page 83 and 84: 6.4 Complete Circuit Diagram Figure
Page 85 and 86: 7.1 Introduction CHAPTER 7 PERFORMA
Page 87 and 88: BR is programmed to send carrier wa
Page 89 and 90: 7.4 Illustration of Blocking 7.4.1
Page 91 and 92: 9.1 dBm power and 2.6V which gives
Page 93 and 94: Figure 7.8. Experimental setup2 ill
Page 95 and 96: Figure 7.10. Comparing Friss Power
Page 97: 7.5.2 Results The polar Figure 7.12
Page 101 and 102: 7.5.6 Results The results of this s
Page 103 and 104: • Can be controlled from ethernet
Page 105 and 106: Figure 8.2. FEKO simulation of mono
Page 107 and 108: 8.3.2 Results The Graph 8.4 shows t
Page 109 and 110: provide with a good authorized bloc
Page 111 and 112: REFERENCES [1] CC1101: http://focus
Page 113 and 114: [20] K. Fotopoulou and B. W. Flynn.
Page 115 and 116: [42] Xianming Qing and Zhi N. Chen.
Page 117: BIOGRAPHICAL STATEMENT Gaurov Naray
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