Continuous-detection-mechanism-based anti-collision algorithm for EPC Gen2 protocol
A detection mechanism and anti-collision technology, applied in computing, computer components, electromagnetic radiation induction, etc., can solve problems such as low algorithm efficiency, reduce energy loss, increase the number of labels, and improve the recognition reliability.
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[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0039]The length of the RFID system identification time is not only related to the probability of collision and idle time slot, but also has a great relationship with the duration of the two. For this reason, the present invention combines the parameters in the Gen2 protocol to calculate the duration of the conflict time slot and the idle time slot, and combines the probability of both occurrences to provide an optimized update step size C c and C i . When channels collide, Q fp Increase C c ; When the channel is idle, Q fp reduce C i . The optimized update step size C in the present invention c and C i are two new parameters introduced for idle slots and conflict slots, and the recognition efficiency of the system is the same as C c and C i The ratio is...
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