Different 3DS and OTP(一次密碼)

3DSecure是由VISA和MasterCard提供的免费服务,为在线信用卡交易提供额外的安全保障。通过Verified by Visa (VBV)和MasterCard SecureCode (MSC),在互联网购物时使用密码验证顾客身份,防止欺诈。 OTP(一次性密码)是通过短信发送到您手机上的一次性密码,用于交易验证,确保支付安全。用户无需单独注册此服务,但需确保银行记录的手机号码是最新的。随着新政策,静态3D Secure将转换为OTP,密码将直接发送到手机,不再需要用户自设密码。
  1. What is 3D Secure?

3D Secure is a FREE service facilitated by VISA and MasterCard that lets you transact online securely using your Debit or Credit Card. This service is available only on 3D Secure merchant sites. Verified by Visa (VBV) / MasterCard SecureCode (MSC) use password protection during an Internet purchase to authenticate the customer as an added fraud prevention measure.

  1. What are the benefits of 3D Secure?

VBV/MSC provides added assurance by verifying you while using your Standard Chartered Visa/MasterCard Card to make payments online. You can be assured that any online merchant giving VBV/MSC service is a legitimate commercial entity. A private code means added protection against unauthorised use of your Card when you make payments online.
VBV/MSC protects your existing Visa/MasterCard giving you assurance that you and only you can use your Visa/Master Card for electronic payments. The added protection of VBV/MSC is automatically enabled on your card.

  1. What is One-time Password (OTP)?

A One-time Password is a password that is valid for only one login session or transaction, on a computer system or other digital devices. OTP is automatically generated via SMS to your mobile for authentication.

  1. How do I register for 3D Secure?

No registration is required. This feature will be automatically enabled on your card. Please ensure that you have updated your latest mobile phone number with us, as the OTP will be sent to the mobile number in our records.

  1. I have existing 3D secure for credit card whereI currently input my own password, will this affect me?

Yes, with the launch, all static 3D secure will be converted to one time password, where one time password will be sent to your mobile number instead and you will no longer input your own set password.

【直流微电网】径向直流微电网的状态空间建模与线性化:一种耦合DC-DC变换器状态空间平均模型的方法 (Matlab代码实现)内容概要:本文介绍了径向直流微电网的状态空间建模与线性化方法,重点提出了一种基于耦合DC-DC变换器状态空间平均模型的建模策略。该方法通过对系统中多个相互耦合的DC-DC变换器进行统一建模,构建出整个微电网的集中状态空间模型,并在此基础上实施线性化处理,便于后续的小信号分析与稳定性研究。文中详细阐述了建模过程中的关键步骤,包括电路拓扑分析、状态变量选取、平均化处理以及雅可比矩阵的推导,最终通过Matlab代码实现模型仿真验证,展示了该方法在动态响应分析和控制器设计中的有效性。; 适合人群:具备电力电子、自动控制理论基础,熟悉Matlab/Simulink仿真工具,从事微电网、新能源系统建模与控制研究的研究生、科研人员及工程技术人员。; 使用场景及目标:①掌握直流微电网中多变换器系统的统一建模方法;②理解状态空间平均法在非线性电力电子系统中的应用;③实现系统线性化并用于稳定性分析与控制器设计;④通过Matlab代码复现和扩展模型,服务于科研仿真与教学实践。; 阅读建议:建议读者结合Matlab代码逐步理解建模流程,重点关注状态变量的选择与平均化处理的数学推导,同时可尝试修改系统参数或拓扑结构以加深对模型通用性和适应性的理解。
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