人脸识别考勤机电磁辐射发射风险监测研究

Research on Risk Monitoring of Electromagnetic Radiation Emission of Face Recognition Attendance Machine

介绍了人脸识别考勤机工作原理及其电磁辐射发射来源,按照GB/T 9254.1-2021《信息技术设备、多媒体设备和接收机电磁兼容第1部分:发射要求》要求对国内生产的9款型号的人脸识别考勤机进行了30 MHz~6 GHz电磁辐射发射测试。根据测试结果对人脸识别考勤机电磁辐射发射风险监测进行了研究,作出了风险研判结论。

This paper introduces work principles and electromagnetic radiation emission source of face recognition atte ndance machine, and tests 30 MHz~6 GHz electromagnetic radiated emission for nine models of machines produced by domestic manufacturers, according to requirements of GB/T 9254.1-2021, Information technology equipment, multimedia equipment and receivers—Electromagnetic compatibility—Part 1: Emission requirements..Based on results of tests, the paper studies the risk monitoring of electromagnetic radiation emission of these machines, and makes a conclusion of risk study.