SOMC: Service-Oriented Modell-based Control – Dynamic Software for Dynamic Systems

SOMC：面向服务的基于模型的控制 – 动态系统的动态软件

• 批准号: 468483200
• 负责人: Dr.-Ing. Bassam Alrifaee
• 金额: --
• 依托单位: Lehrstuhl und Institut für Regelungstechnik (IRT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/468483200?language=en
• 关键词: SOMC; Service; Oriented; Modell; based

This project pursues employing service-oriented software architectures, which possess high inherent flexibility, in order to increase the adaptability and maintainability of model-based control. The aim of the research project is the scientific investigation, conceptual development, implementation and experimental validation of service-oriented, model-based control.In times of digitalization and increasingly networked devices, the main challenges of control and automation technology are (i) to enable adjustments of control systems both offline and at runtime, (ii) to enable flexible system integration, and (iii) to keep the increasingly complex control systems maintainable. These challenges are difficult to address with state-of-the-art software architectures, where control software is classically designed based on block diagrams that are statically integrated. Individual functions of the block diagram are then assigned to separate ECUs. Due to this fixed structure, individual components of the control loop can hardly be replaced, as changes to individual functions often requires modifications in all other components. Therefore, adaptations of the control loop are hardly possible as they would imply different information flow directions.This project proposes a novel approach to solve this problem. We suggest formulating the elements of the control loop as services of a service-oriented software architecture. Therefore, the information flow in the software system does not correspond anymore to the cause-effect directions of the physical system. The expected advantages are (i) the flexible interconnections of the services (by using orchestration) enable adaptations to the control system at runtime and (ii) the well-defined interfaces of the services increase the maintainability. The necessary steps towards a service-oriented control loop in this project are the systematic formulation of the elements of the control loop as services, the development of orchestration mechanisms to dynamically integrate the services and the evaluation of the resulting dynamic effects. Since services of a service-oriented software architecture use typed interfaces for their requirements and guarantees, we will investigate model-based control methods, in order to link guarantees rooted in control theory to guarantees in the service domain. In particular, we will consider the connection between service guarantees and the model used for control design.This project will validate the methods using two different test benches, which will realistically showcase phenomena arising in distributed control systems. Thus, the test benches will allow to critically evaluate the performance of our novel approach and comparing it with classical approaches.

本项目追求采用面向服务的软件架构，具有较高的固有灵活性，以增加基于模型控制的适应性和可维护性。该研究项目的目标是面向服务的、基于模型的控制的科学调查、概念开发、实施和实验验证。在数字化和设备日益网络化的时代，控制和自动化技术的主要挑战是(I)实现控制系统的离线和运行调整，(Ii)实现灵活的系统集成，以及(Iii)保持日益复杂的控制系统的可维护性。这些挑战很难用最先进的软件架构来解决，在这种架构中，控制软件是基于静态集成的框图进行经典设计的。然后将框图的各个功能分配给不同的ECU。由于这种固定结构，控制回路的单个组件几乎不能被替换，因为对单个功能的改变通常需要对所有其他组件进行修改。因此，控制回路的调整几乎是不可能的，因为它们意味着不同的信息流方向。本项目提出了一种新的方法来解决这个问题。我们建议将控制循环的元素表示为面向服务的软件体系结构的服务。因此，软件系统中的信息流不再与物理系统的因果方向相对应。预期的优势是(I)服务的灵活互连(通过使用编排)允许在运行时适应控制系统，以及(Ii)服务的良好定义的接口增加了可维护性。在本项目中，实现面向服务的控制循环的必要步骤是将控制循环的元素系统地表述为服务，开发用于动态集成服务的编排机制，以及评估由此产生的动态效果。由于面向服务的软件体系结构的服务使用类型化接口来满足其需求和保证，因此我们将研究基于模型的控制方法，以便将植根于控制理论的保证与服务域中的保证联系起来。特别是，我们将考虑服务保证和用于控制设计的模型之间的联系。本项目将使用两个不同的试验台来验证方法，这将真实地展示分布式控制系统中出现的现象。因此，试验台将允许批判性地评估我们的新方法的性能，并将其与经典方法进行比较。