Topic
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.
Papers published on a yearly basis
Papers
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TL;DR: A multilayer resilient controller to detect and mitigate MITM attacks immediately for ensuring the security of dc microgrids is proposed and theoretically verified and validated using simulations and experiments.
Abstract: Recent advancements in dc microgrids are largely based on distributed control strategies to enhance their reliability. However, due to numerous vulnerabilities in the communication layer, they are susceptible to cyber attacks. Hijacked cyber link(s) could affect the microgrid system reliability and operation in many ways. Therefore, the accuracy in detection of the compromised link(s) becomes very critical due to the dynamic relationship between the cyber-physical entities in dc microgrids. One of the most prominent attacks on cyber layer is referred to as the man-in-the-middle (MITM) attack. This type of attack involves infiltrating the information between two communication nodes by a third party. This article proposes a multilayer resilient controller to detect and mitigate MITM attacks immediately for ensuring the security of dc microgrids. First, the modeling of MITM attacks based on cooperative response, and degree of coordination of attack element(s) is discussed in detail. Furthermore, a diverging factor based detection law is proposed to locate the compromised cyber link(s) and to identify the malicious signals in voltage and current counterparts. A multilayer-based event-driven strategy is then used to remove these signals by introducing multiple mitigation layers. Based on the authentication signal for each neighboring agent True or False , the data flow between the multilayer cyber network takes place to guarantee resilience against MITM attacks. Finally, the proposed resilient mechanism in the presence of MITM attack is theoretically verified and validated using simulations and experiments.
47 citations
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01 Sep 2019TL;DR: This paper proposes to integrate blockchain technology into ad hoc vehicular networking so that the vehicles can share network resources with increased trust, reliability, and security using distributed access control system and can benefit a wider scope of scalable IoV applications scenarios for decision making.
Abstract: With the transformation of connected vehicles into the Internet of Vehicles (IoV), the time is now ripe for paving the way for the next generation of connected vehicles with novel applications and innovative security measures. The connected vehicles are experiencing prenominal growth in the auto industry, but are still studded with many security and privacy vulnerabilities. Today's IoV applications are part of cyber physical communication systems that collect useful information from thousands of smart sensors associated with the connected vehicles. The technology advancement has paved the way for connected vehicles to share significant information among drivers, auto manufacturers, auto insurance companies and operational and maintenance service providers for various applications. The critical issues in engineering the IoV applications are effective to use of the available spectrum and effective allocation of good channels an opportunistic manner to establish connectivity among vehicles, and the effective utilization of the infrastructure under various traffic conditions. Security and privacy in information sharing are the main concerns in a connected vehicle communication network. Blockchain technology facilitates secured communication among users in a connected vehicles network. Originally, blockchain technology was developed and employed with the cryptocurrency. Bitcoin, to provide increased trust, reliability, and security among users based on peer-to-peer networks for transaction sharing. In this paper, we propose to integrate blockchain technology into ad hoc vehicular networking so that the vehicles can share network resources with increased trust, reliability, and security using distributed access control system and can benefit a wider scope of scalable IoV applications scenarios for decision making. The proposed architecture is the faithful environment for information sharing among connected vehicles. Blockchain technology allows multiple copies of data storage at the distribution cloud. Distributed access control system is significantly more secure than a traditional centralized system. This paper also describes how important of ad hoc vehicular networking in human life, possibilities in real-world implementation and its future trends. The ad hoc vehicular networking may become one of the most trendy networking concepts in the future that has the perspective to bring out much ease human beneficial and secured applications.
47 citations
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TL;DR: A new wireless platform named Martlet is introduced with a dual-core microcontroller adopted in its design, which allows Martlet to dedicate one core to standard wireless sensor operations while the other core is reserved for embedded data processing and real-time feedback control law execution.
Abstract: The introduction of wireless telemetry into the design of monitoring and control systems has been shown to reduce
system costs while simplifying installations. To date, wireless nodes proposed for sensing and actuation in cyberphysical
systems have been designed using microcontrollers with one computational pipeline (i.e., single-core
microcontrollers). While concurrent code execution can be implemented on single-core microcontrollers,
concurrency is emulated by splitting the pipeline’s resources to support multiple threads of code execution. For
many applications, this approach to multi-threading is acceptable in terms of speed and function. However, some
applications such as feedback controls demand deterministic timing of code execution and maximum computational
throughput. For these applications, the adoption of multi-core processor architectures represents one effective
solution. Multi-core microcontrollers have multiple computational pipelines that can execute embedded code in
parallel and can be interrupted independent of one another. In this study, a new wireless platform named Martlet is
introduced with a dual-core microcontroller adopted in its design. The dual-core microcontroller design allows
Martlet to dedicate one core to standard wireless sensor operations while the other core is reserved for embedded
data processing and real-time feedback control law execution. Another distinct feature of Martlet is a standardized
hardware interface that allows specialized daughter boards (termed wing boards) to be interfaced to the Martlet
baseboard. This extensibility opens opportunity to encapsulate specialized sensing and actuation functions in a wing
board without altering the design of Martlet. In addition to describing the design of Martlet, a few example wings
are detailed, along with experiments showing the Martlet’s ability to monitor and control physical systems such as
wind turbines and buildings.
47 citations
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TL;DR: A Cyber-Physical-System based approach which allows the efficient utilization of the entire flexibility of reconfigurable, modular robot cells in assembly and eliminates uncertainties regarding the feasibility of the assembly process in a defined robot cell during the design phase of the product with a CAD program.
47 citations
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01 Jan 2018TL;DR: With the application of Smart Retrofitting, it will be possible for companies to adhere in a short time to the requirements of Industry 4.0 and remain competitive in the market, since this could be the first step for a company to implement the concepts of Industry 5.0.
Abstract: Nowadays, it is a matter of survival for companies to keep their ability for adapting rapidly to changes. The causes that drive to them are related to external and internal factors. One of the main reasons for these factors is the new possibility that Industry 4.0 brings with it. One of the visions of Industry 4.0 is the production of highly customized products within a mass production line. In addition to it, an intelligent interaction happens between machine–objects–people and this occurs vertically and horizontally within the company. However, most industrial parks are not technologically prepared for the concepts of Industry 4.0; thereby this paper proposes the concept of Smart Retrofitting regarding these challenges. As a result, the methodology proposes to take aspects of Industry 4.0 relevant to a specific process, since this could be the first step for a company to implement the concepts of Industry 4.0. Once these aspects are selected, they will be put into practice with the help of cyber-physical systems. With the application of Smart Retrofitting, it will be possible for companies to adhere in a short time to the requirements of Industry 4.0. In this way, it will be possible to remain competitive in the market. Regarding this paper, there will be a case study for the implementation of Smart Retrofitting. As case study, a drilling process was chosen in a thyssenkrupp manufacturing plant in Brazil to start implementing the Smart Retrofitting, and for this first step it was possible to achieve an improvement of the feed rate reducing it by approximately 9% without reducing the lifetime of the tooling.
47 citations