一种基于无源射频识别的智能门禁系统

An Intelligent Access Control System Based on Passive Radio-Frequency Identification

针对采用无线射频识别门禁系统授权识别准确率较低,以及较难防范未经授权的人员将授权人员带入限制区域的问题,提出了一个智能访问控制系统。所提出的系统由超高频无线射频识别子系统和计算机视觉子系统组成。超高频无线射频识别子系统实现人员的识别和认证功能,而计算机视觉子系统实现捕获人员图像并准确计算其数量的功能。实验表明,访问控制系统通过比较2个子系统所确定的人员数量,可以提高射频识别的准确率,并有效解决尾随访问控制问题。

An intelligent access control system is proposed for the current use of radio frequency identi-fication （RFID） access control systems with low recognition accuracy and difficulty in preventing unau-thorized personnel from bringing authorized personnel into restricted areas. The proposed system consists of a UHF radio frequency identification subsystem and a computer vision subsystem. The UHF radio fre-quency identification subsystem implements the personnel＇s identification and authentication functions, and the computer vision subsystem provides the function of capturing the person＇s image and accurately calcu-lating the number thereof. Experiments show that the access control system can improve the accuracy of radio frequency identification and effectively solve the problem of tailgate access control by comparing the number of people determined by the two subsystems.