CoCPN: Cooperative Cyber Physical Networking

CoCPN：协作网络物理网络

• 批准号: 315021670
• 负责人: Professor Dr.-Ing. Uwe D. Hanebeck
• 金额: --
• 依托单位: Institut für Telematik (TM)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/315021670?language=en
• 关键词: CoCPN; Cooperative; Cyber; Physical; Networking

The goal of the proposed project CoCPN is to investigate a novel cooperative approach for an integrated operation of control systems and communication system. We envision that both, the control system as well as the communication system can react adaptively to changes in the current situation. The so called CoCPN-translator couples both systems and translates control requirements into communication properties and vice versa. From the control system side, we employ a decentralized approach to locally approximately solve the global problem of optimizing the behavior of all control loops, connected by the communication system. We apply an event-based approach to adjust the communication demand. The non-deterministic properties of the communication system are taken into account by a sequence-based approach. We study assumed time-invariant communication properties, as well as time-varying communication properties. The problem induced by the first is solved by modelling the system as a Markov Jump Linear System and derive an optimal linear controller. The latter invokes a nonconvex optimization problem and is modelled as general Stochastic Hybrid System (SHS). The optimization will be studied by cost and policy approximation strategies and by employing a scenario-based approach.Regarding the network we assume that mixed CPS and non-CPS traffic needs to be served. Therefore, we apply traffic differentiation, which in order to be effective needs to be supported by an admission control. For traffic management, we follow a mixed centralized and de-centralized approach. A so-called observer has an approximate view on a wireless domain and, thus, can provide suited routes that then will be used via source routing. In order to properly deal with competing traffic in the network, we will investigate a mechanism four congestion control that utilizes knowledge from the network and will be tailored to event-based traffic instead of traffic streams as usually seen in the Internet. As a result CoCPN should provide a flexible framework for cyber physical networks that can cope with different types of traffic, does not need network overprovisioning, and the control loop has looser real-time requirements regarding the communication system.

建议的项目CoCPN的目标是研究一种新的合作方法的控制系统和通信系统的集成操作。我们设想，控制系统和通信系统都可以自适应地对当前情况的变化做出反应。所谓的CoCPN转换器耦合两个系统，并将控制要求转换为通信属性，反之亦然。从控制系统方面来看，我们采用分散的方法来局部近似解决优化由通信系统连接的所有控制回路的行为的全局问题。我们采用基于事件的方法来调整通信需求。通信系统的非确定性属性考虑到了基于序列的方法。我们研究假设的时不变通信特性，以及随时间变化的通信特性。第一个问题是通过将系统建模为马尔可夫跳变线性系统来解决的，并推导出最优线性控制器。后者调用一个非凸优化问题，并建模为一般的随机混合系统（SHS）。优化将研究成本和政策的近似策略，并通过采用一个基于的approaches.For网络，我们假设，混合CPS和非CPS流量需要提供服务。因此，我们应用流量区分，为了有效，需要由准入控制支持。对于流量管理，我们采用集中式和分散式混合的方法。所谓的观察者具有无线域上的近似视图，并且因此可以提供随后将经由源路由使用的合适路由。为了正确处理网络中的竞争流量，我们将研究一种机制四拥塞控制，利用网络中的知识，并将量身定制的基于事件的流量，而不是通常在互联网上看到的流量流。因此，CoCPN应该为网络物理网络提供一个灵活的框架，可以科普不同类型的流量，不需要网络过度配置，并且控制环路对通信系统的实时要求较低。