Cyber-physical system

About: Cyber-physical system is a research topic. Over the lifetime, 11096 publications have been published within this topic receiving 162489 citations. The topic is also known as: CPS.

Modeling future cyber-physical energy systems

Abstract: In this paper a model of a future combined cyber-physical energy system is introduced. We view such systems as the intertwined physical-cyber network interconnections of many non-uniform components, such as diverse energy sources and different classes of energy users, equipped with their own local cyber. This modeling approach is qualitatively different from the currently used models that do not explicitly account for the effects of sensing and communications. The proposed approach is based, instead, on representing all physical components as modules interconnected by means of an electric network. However, not all physical components can be modeled from first principles because of the extreme non-uniformity and the complexity of various classes of components. Instead, many components and/or groups of components have to be monitored and their models have to be identified using extensive signal processing, sensing, and model identification. We illustrate such combined cyber-physical models of key components, and use these to introduce a structure preserving model of a cyber-physical infrastructure of the interconnected system. Such a model becomes a basis for deciding what to sense and at which rate, what level of data mining is needed for which (groups of) physical modules to achieve predictable performance for cyber-physical future energy systems. This model rests on the premise that the performance of future energy systems can be shaped in major ways by means of broadly available cyber technologies. In order to make the most out of the available cyber technologies, the first step is to establish models which capture these interdependencies. This paper is a step in such direction.

Computer-Integrated Manufacturing, Cyber-Physical Systems and Cloud Manufacturing – Concepts and relationships

Abstract: Computers are deeply entrenched in modern manufacturing systems, giving rise to technologies such as Computer Integrated Manufacturing, Cyber-Physical Systems and most recently Cloud Manufacturing. These technologies have evolved based on existing or similar technologies or manufacturing paradigms. Some misunderstandings exist among these technologies. In spite of similarities, there are sufficient differences among themselves. To start off, the circumstances under which these technologies were incepted and developed are different. There are different methodologies associated with them. Discussions in this paper are made in relationship to Information Technology, Industry and Services.

Cyber-physical systems for water sustainability: challenges and opportunities

Abstract: Water plays a vital role in the proper functioning of the Earth’s ecosystems, and practically all human activities, such as agriculture, manufacturing, transportation, and energy production The proliferation of industrial and agricultural activities in modern society, however, poses threats to water resources in the form of chemical, biological, and thermal pollution On the other hand, tremendous advancements in science and technology offer valuable tools to address water sustainability challenges Key technologies, including sensing technology, wireless communications and networking, hydrodynamic modeling, data analysis, and control, enable intelligently wireless networked water cyber-physical systems (CPS) with embedded sensors, processors, and actuators that can sense and interact with the water environment This article provides an overview of water CPS for sustainability from four critical aspects: sensing and instrumentation; communications and networking; computing; and control The article also explores opportunities and design challenges of relevant techniques

A Cyber-Physical Modeling and Assessment Framework for Power Grid Infrastructures

Abstract: The integration of cyber communications and control systems into the power grid infrastructure is widespread and has a profound impact on the operation, reliability, and efficiency of the grid. Cyber technologies allow for efficient management of the power system, but they may contain vulnerabilities that need to be managed. One important possible consequence is the introduction of cyber-induced or cyber-enabled disruptions of physical components. In this paper, we propose an online framework for assessing the operational reliability impacts due to threats to the cyber infrastructure. This framework is an important step toward addressing the critical challenge of understanding and analyzing complex cyber-physical systems at scale.