scholarly journals Cluster control of complex cyber-physical systems

2021 ◽  
pp. 191-200
Author(s):  
Denis Uzhva ◽  
Oleg Granichin
Keyword(s):  
Optimization Problem ◽  
Cyber Physical Systems ◽  
Networked Systems ◽  
Cluster Synchronization ◽  
System Component ◽  
Control Synthesis ◽  
System Complexity ◽  
Physical Systems ◽  
System Components ◽  
Concept Of Information

To our minds, the real world appears as a composition of different interacting entitites, which demonstrate complex behavior. In the current paper, we primarly aim to study such networked systems by developing corresponding approaches to modeling them, given a class of tasks. We derive it from the primary concept of information and a system, with corresponding dynamics emerging from interactions between system components. As we progress through the study, we discover three possible levels of certain synchronous pattern composition in complex systems: microscopic (the level of elementary components), mesoscopic (the level of clusters), and macroscopic (the level of the whole system). Above all, we focus on the clusterization phenomenon, which allows to reduce system complexity by regarding only a small number of stable manifolds, corresponding to cluster synchronization of system component states—as opposed to regarding the system as a whole or each elementary component separately. Eventually, we demonstrate how an optimization problem for cluster control synthesis can be formulated for a simple discrete linear system with clusterization.

Railway cyber safety: An intelligent threat perspective

2021 ◽  
pp. 095440972110005
Author(s):  
Duncan Unwin ◽  
Louis Sanzogni
Keyword(s):  
Control System ◽  
Cyber Physical Systems ◽  
Functional Safety ◽  
Systems Of Systems ◽  
Physical Systems ◽  
System Components ◽  
Cyber Safety

Cybersecurity threats to railways are increasing, both due to improvements in the techniques of hackers and the increasing merger of cyber and physical spheres. Accepted approaches to safety can be extended to consider the risks from cyber, however the nature of railways as complex cyber-physical systems of systems may require a broader approach beyond functional safety. This paper explores some of the cybersecurity hazards using a war gaming approach. The authors find that, while standard engineering approaches are effective in building new rail control system components, a broader and more creative consideration of attacks has benefits. In particular they identify the ability to cause mass disruption by targeting the fail-safes designed to ensure safety or auxiliary systems that are not directly classified within the scope of the ICS.

Cyberphysical system of watering with remote control

2021 ◽  
Vol 3 (1) ◽  
pp. 38-46
Author(s):  
A Hrytsyk ◽  
◽  
Y Klushyn
Keyword(s):  
Remote Control ◽  
Cyber Physical Systems ◽  
System Construction ◽  
Physical Systems ◽  
Amount Of Information ◽  
Pace Of Life ◽  
System Components ◽  
Growing Environment ◽  
Cyberphysical System ◽  
The Relationship

In today's reality, the pace of people's lives is much higher than it was 30 years ago and it is still growing. At the same time, the amount of information also growing. This information should to be processed constantly, daily, as soon it is received. Production volumes are also not standing still. Such a lively pace of life requires process consistency and continuity. And these processes must be provided by man. This article describes the system of watering which should automate the process of growing plants. Also the analysis of a new branch, cyber-physical systems is carried out. The analysis of modern systems of autonomous irrigation, principles of their construction and organization of their work are committed. A method of implementing a system that provides the possibility of constant monitoring of the growing environment and provides an opportunity to influence it is suggested. The choice of components for system construction is made. The algorithm of the program operation is described. An analysis of the relationship between system components and the user's relationship with the system is performed.

scholarly journals Utility-Oriented Placement of Actuator Nodes with a Collaborative Serving Scheme for Facilitated Business and Working Environments

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Chi-Un Lei ◽  
Woon Kian Chong ◽  
Ka Lok Man
Keyword(s):  
Linear Programming ◽  
Integer Linear Programming ◽  
Optimization Problem ◽  
Fault Tolerant ◽  
Cyber Physical Systems ◽  
Physical Systems ◽  
Working Environments ◽  
Points Of Interest ◽  
Binary Integer Linear Programming ◽  
Deployment Cost

Places to be served by cyber-physical systems (CPS) are usually distributed unevenly over the area. Thus, different areas usually have different importance and values of serving. In other words, serving power can be excessive or insufficient in practice. Therefore, actuator nodes (ANs) in CPS should be focused on serving around points of interest (POIs) with considerations of “service utility.” In this paper, a utility-oriented AN placement framework with a collaborative serving scheme is proposed. Through spreading serving duties among correctly located ANs, deployment cost can be reduced, utility of ANs can be fully utilized, and the system longevity can be improved. The problem has been converted into a binary integer linear programming optimization problem. Service fading, 3D placements, multiscenario placements, and fault-tolerant placements have been modeled in the framework. An imitated example of a CPS deployment in a smart laboratory has been used for evaluations.

scholarly journals Cyber-Physical Systems and Smart Cities in India: Opportunities, Issues, and Challenges

Sensors ◽  
2021 ◽  
Vol 21 (22) ◽  
pp. 7714
Author(s):  
Md. Onais Ahmad ◽  
Mohd Abdul Ahad ◽  
M. Afshar Alam ◽  
Farheen Siddiqui ◽  
Gabriella Casalino
Keyword(s):  
Smart City ◽  
Smart Cities ◽  
Cyber Physical Systems ◽  
System Component ◽  
Future Research ◽  
Special Focus ◽  
Physical Systems ◽  
Security Issues ◽  
Indian Context ◽  
Urban Settlements

A large section of the population around the globe is migrating towards urban settlements. Nations are working toward smart city projects to provide a better wellbeing for the inhabitants. Cyber-physical systems are at the core of the smart city setups. They are used in almost every system component within a smart city ecosystem. This paper attempts to discuss the key components and issues involved in transforming conventional cities into smart cities with a special focus on cyber-physical systems in the Indian context. The paper primarily focuses on the infrastructural facilities and technical knowhow to smartly convert classical cities that were built haphazardly due to overpopulation and ill planning into smart cities. It further discusses cyber-physical systems as a core component of smart city setups, highlighting the related security issues. The opportunities for businesses, governments, inhabitants, and other stakeholders in a smart city ecosystem in the Indian context are also discussed. Finally, it highlights the issues and challenges concerning technical, financial, and other social and infrastructural bottlenecks in the way of realizing smart city concepts along with future research directions.

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