工业网络控制系统协同安全性能优化  

Optimization of Interdependent Security in Industrial Networked Control System

作　　者：王海凤[1] 黄文君[1] 何之栋 

机构地区：[1]浙江大学工业控制技术国家重点实验室智能系统与控制研究所,杭州310027

出　　处：《小型微型计算机系统》2014年第9期2172-2176,共5页Journal of Chinese Computer Systems

基　　金：国家"八六三"高技术研究发展计划项目(2012AA041105)资助

摘　　要：研究了在节点安全互相关特性及服务质量要求下,工业网络控制系统中网络节点安全性能部署优化问题.由网络化节点安全性能互相关的理论,引入协同安全系数表征节点安全性能,同时分析网络节点安全措施及计算性能对系统实时性的影响,以最小化网络部署总成本为目标,建立优化问题.进而采用凸规划理论将对偶问题分解为安全配置与性能配置分布式问题并使用次梯度方法求解.数值仿真结果验证了节点的互相关特性、以及安全性和实时性的制约关系,并表明该模型可以获得收敛的优化解,对工业控制网络设计与部署有指导意义.Optimization ofnetwork deployment in industrial networked control system subjected to interdependent security and QoS requirementsis researched. The term ＂Coordinated Security＂ is introduced on the basis of the interdependence between networked nodes facing diverse security threats. Security model and delay model are developed for each individual node. An optimization problem subjected to security and delay constraints is formulated, in which the objective is to minimize network deployment cost, and sub-gradient algorithm is applied to solve the problem. A case illustration is provided to demonstrate the efficiency of the proposed model, thus it is helpful for the design of industrial control network.

关 键 词：协同安全 安全互相关 网络部署优化 工业网络控制系统 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]