用于量子密钥分发系统的单光子探测器控制软件

Single Photon Detector Control Software for Quantum Key Distribution Systems

单光子探测器是量子密钥分发系统的核心组成部分,其性能和安全性对QKD系统有着重要影响。为实现对量子密钥系统中单光子探测器的标定和监控,本文基于C++/Qt技术设计了一种单光子探测器控制软件系统,实现了对单光子探测器的测量控制、数据存储分析、数据可视化显示等功能。该软件基于模块化、层次化思想,设计了易于扩展的系统架构,具备交互友好的图形用户界面,兼容千兆以太网口、RS232串口的通信接口,可满足不同应用场景下数据传输的需求。所设计的控制软件具备单光子探测器控制、性能标定、状态监测、异常告警、攻击事件检测预警等功能,可大大提高单光子探测产品性能标定、状态检测、安全防护的工作效率,保障探测器产品的安全稳定运行,从而保障QKD系统的安全性。

The single photon detector is the core component of quantum key distribution(QKD)system,its performance and security have important influence on QKD system.In order to realize the calibration and monitoring of single photon detector in QKD system,this paper designs a control software system based on C++/Qt technology,which for single photon detector is used to realizes the functions of detector control and measurement,data storage and analysis,data visualization and so on.The software is based on the method of modularity and hierarchy,and the system architecture is optimized and easy to expand.In addition,the communication interface compatible with Gigabit Ethernet port、RS232 serial port is designed to meet the needs of data transmission in different application scenarios.The control software system designed in this paper has functions of single photon detector control,performance calibration,condition monitoring,anomaly alarm,attack event detection and early warning,etc.,which can greatly improve the working efficiency of performance calibration,status detection and security protection of single photon detection products,and ensure the safe and stable operation of detector products.Thus,the security of QKD system is guaranteed and the interface is simple to use and high stability.