电子科技大学学报2023，Vol.52Issue(1)：54-63,10.DOI:10.12178/1001-0548.2022018
基于LF RFID的进出检测算法
An Access Detection Method Based on LF RFID
摘要
Abstract
The low frequency radio frequency identification (LF RFID)-based detection technology is popular for access detection systems because it is convenient and low-cost. However, the performance of LF RFID technology is easily affected by complex environmental factors, especially in the metal environment, leading to low detection accuracy and poor stability. To tackle this problem, we propose an access detection method with an accurate positioning algorithm based on improved maximum likelihood in this paper. The positioning algorithm consists of two stages:training stage and positioning stage. In the training stage, a correction fingerprint database is established. The database is used to correct the ranging error due to environmental factors. In the positioning stage, after correcting the ranging measurement error, the maximum likelihood algorithm is used to locate tags carried by subjects for detecting the entry/exit status. Some experimental results show that the detection accuracy can reach 3 cm and the accuracy of detecting entering/exiting status under two walk strategies is up to 99％or more, which is enough for application.关键词
进出检测/修正指纹数据库/LF RFID/最大似然Key words
accessdetection/fingerprintcorrectiondatabase/LFRFID/maximumlikelihood分类
信息技术与安全科学引用本文复制引用
冯焱玲,马心怡,保骏,陈祝明,刘朋..基于LF RFID的进出检测算法[J].电子科技大学学报,2023,52(1):54-63,10.基金项目
Ministry of Education-China Mobile Research Fund(MCM20180105) （MCM20180105）
National Key R&D Project(2018YFC0808302)教育部-中国移动科研基金(MCM20180105) （2018YFC0808302）
国家重点研发计划(2018YFC0808302) （2018YFC0808302）
