DENG Dun-jian, AN Yong, MU Rong-zeng, et al. Analysis and improvement of anti-collision Q-algorithm based on AS3992[J]. 2013, 32(3): 7-10. DOI: 10.13873/j.1000-97872013.03.027.
Because the anti-collision Q-algorithm based on ultra high frequency(UHF) RFID ISO/IEC 18000-6C protocol has uncertain limitationoftags and time slot numbers
self-adaptive ability of the system is insufficient Q algorithm is improved by estimating the number of tags
and calculating optimum time slots towards the tags.The proposed algorithm is verified on experimental platform composed of reader ASIC AS3992 and STM32f103 micro-controller.Experimental result shows that compared with original algorithm
self-adaptive ability is improved and error of estimating tags quantity is controlled within 10 % without reducing recognition efficiency and increasing average power consumption.