Contents
1 Overview of RFID System Anti-Collision Technology . . . . . . . . . . . . . .
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1.1 RFID Collision Problem and Research Progress
of Anti-Collision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1.2 RFID System Anti-Collision Technology . . . . . . . . . . . . . . . . . . . . . .
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1.2.1 Information Channel and Channel Capacity . . . . . . . . . . . . . .
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1.2.2 Software Anti-Collision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.2.3 Physical Anti-Collision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.3 Physical Anti-Collision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.3.1 Definition of Physical Collision Avoidance . . . . . . . . . . . . . . 25
1.3.2 The Main Features of Physical Collision Avoidance . . . . . . . 25
1.3.3 The Structure of the Physical Anti-Collision System . . . . . . 25
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2 RFID System Physical Anti-Collision Experimental Verification . . . . 29
2.1 RFID Tag Group Performance Measurement . . . . . . . . . . . . . . . . . . . 30
2.1.1 Tag Group Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.1.2 Measurement System Designed . . . . . . . . . . . . . . . . . . . . . . . . 31
2.1.3 Single Tag Sensitivity Measurement . . . . . . . . . . . . . . . . . . . . 35
2.1.4 Tag Group Sensitivity Measurement . . . . . . . . . . . . . . . . . . . . 39
2.1.5 The Summary of This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.2 Image Feature Matching Experiment of RFID System
Physical Anti-Collision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2.2.1 Image Feature Matching Based on SIFT Algorithm . . . . . . . 45
2.2.2 Image Feature Matching Based on SURF Algorithm . . . . . . 49
2.2.3 Image Feature Matching Based on ORB Algorithm . . . . . . . 51
2.2.4 Algorithm Comparison Results and Analysis . . . . . . . . . . . . . 53
2.2.5 Image Feature Matching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
2.3 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
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