基于FPGA数字PWM调制的智能安全锁设计  

Intelligent Safety Lock Design Based on FPGA Digital PWM Modulation

作　　者：陈皓 佟浩 靳光浩 钟菲[1] CHEN Hao;TONG Hao;JIN Guanghao;ZHONG Fei(School of Electrical Engineering ang Information Technology,Changchun Institute of Technology,Changchun 130012,China)

机构地区：[1]长春工程学院电气与信息工程学院,吉林长春130012

出　　处：《通信电源技术》2022年第23期109-111,共3页Telecom Power Technology

摘　　要：随着信息化时代的到来,世界各国对可见光通信技术领域的研究不断取得新进展,可见光通信逐渐走进人们的视线。基于现场可编程逻辑门阵列(Field-Programmable Gate Array,FPGA)数字脉冲宽度调制(Pulse Width Modulation,PWM)的智能安全锁通过应用数字编码、数字调制以及数字滤波等技术,实现光钥匙的唯一确定性,保证光钥匙在没有得到授权情况下的绝对安全可靠和不可复制。该设计使得安全系统拥有和通信系统相同的安全性能,充分发挥了可见光信号难以被恶意截取的特性,结合调制和编码等技术手段实现了安全性能的全面提升,解锁认证速度也得到了很大程度的提高。With the advent of the information age,countries all over the world have made new progress in the research of visible light communication technology,and visible light communication has gradually come into people's sight.The intelligent security lock based on Field-Programmable Gate Array(FPGA)digital Pulse Width Modulation(PWM)realizes the unique certainty of the optical key by applying digital coding,digital modulation and digital filtering techniques,and ensures that the optical key is absolutely safe,reliable and unrepeatable without authorization.This design makes the security system have the same security performance as the communication system,and gives full play to the characteristic that visible light signals are difficult to be maliciously intercepted.Combined with modulation and coding and other technical means,the security performance is improved in an all-round way,and the unlocking authentication speed is also greatly improved.

关 键 词：可见光通信 智能锁 安全系统 脉冲宽度调制(PWM) 

分 类 号：TM912[电气工程—电力电子与电力传动] TN929.5[电子电信—通信与信息系统]