{"title":"The initial development of a computerized operator support system","authors":"Roger T. Lew, R. Boring, T. Ulrich, Ken Thomas","doi":"10.1109/ISRCS.2014.6900110","DOIUrl":"https://doi.org/10.1109/ISRCS.2014.6900110","url":null,"abstract":"A computerized operator support system (COSS) is a collection of resilient software technologies to assist operators in monitoring overall nuclear power plant performance and making timely, informed decisions on appropriate control actions for the projected plant condition. The COSS provides rapid assessments, computations, and recommendations to reduce workload and augment operator judgment and decision-making during fast-moving, complex events. A prototype COSS for a chemical volume control system at a nuclear power plant has been developed in order to demonstrate the concept and provide a test bed for further research. The development process identified four underlying elements necessary for the prototype, which consist of a digital alarm system, computer-based procedures, piping and instrumentation diagram system representations, and a recommender module for mitigation actions. An operational prototype resides at the Idaho National Laboratory (INL) using the U.S. Department of Energy's (DOE) Light Water Reactor Sustainability (LWRS) Human Systems Simulation Laboratory (HSSL). Several human-machine interface (HMI) considerations are identified and incorporated in the prototype during this initial round of development.","PeriodicalId":205922,"journal":{"name":"2014 7th International Symposium on Resilient Control Systems (ISRCS)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133906353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Time scale analysis and synthesis for Unmanned Aerial Vehicles(UAVs)","authors":"Enobong Archibong, D. Naidu","doi":"10.1109/ISRCS.2014.6900092","DOIUrl":"https://doi.org/10.1109/ISRCS.2014.6900092","url":null,"abstract":"The Unmanned Aerial Vehicles (UAVs) have recently proven to be of immense help in both military and civilian fields. All UAVs ideally need to be able to operate at runtime without the need for sustained human supervision. Hence, the role of automatic control and in particular optimal control of UAVs cannot be overemphasized. In this paper, an eighth-order, non-linear model of a typical UAV is considered. The linearized model of the system exhibits time-scale (slow and fast) character. Based on the time-scale separation, analysis and design of the UAV is carried out successfully by first separating the original, high-order system into slow and fast, lower-order subsystems. Then optimal controllers for these subsystems are designed and a composite control is formed from the slow and fast controls for both deterministic and stochastic cases. The simulations show good agreement between the original linear system and the slow and fast subsystems.","PeriodicalId":205922,"journal":{"name":"2014 7th International Symposium on Resilient Control Systems (ISRCS)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115987950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adversary dynamics and smart grid security: A multiagent system approach","authors":"Aunshul Rege, F. Ferrese, S. Biswas, Li Bai","doi":"10.1109/ISRCS.2014.6900101","DOIUrl":"https://doi.org/10.1109/ISRCS.2014.6900101","url":null,"abstract":"Power grid is the backbone of infrastructures that drive the US economy and security, which makes it a prime target of cybercriminals or state-sponsored terrorists, and warrants special attention for its protection. Commonly used approaches to smart grid security are usually based on various mathematical tools, and ignore the human behavior component of cybercriminals. This paper introduces a new dimension to the cyberphysical system architecture, namely human behavior, and presents a modified CPS framework, consisting of a. cyber system: SCADA control system and related protocols, b. physical system: power grid infrastructure, c. the adversary: cybercriminals, and d. the defender: system operators and engineers. Based on interviews of ethical hackers, this paper presents an adversary-centric method that uses adversary's decision tree along with control theoretic tools to develop defense strategies against cyberattacks on power grid.","PeriodicalId":205922,"journal":{"name":"2014 7th International Symposium on Resilient Control Systems (ISRCS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115435149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ning Gong, Michael Korostelev, Li Bai, S. Biswas, F. Ferrese
{"title":"Evaluation of highly conditionally diagnosable (n, k)-star topology for applications in resilient Network on Chip","authors":"Ning Gong, Michael Korostelev, Li Bai, S. Biswas, F. Ferrese","doi":"10.1109/ISRCS.2014.6900106","DOIUrl":"https://doi.org/10.1109/ISRCS.2014.6900106","url":null,"abstract":"With the rapid increase in the number of processor cores integrated on Network-on-Chips (NoCs) and higher requirements for system reliability, fault tolerance is becoming an important challenge in the design process. Some of research trends are focusing on system reconfiguration in situations with on-chip faulty cores. This is a relevant software research area that is an instance of a well known NP-complete problem. Instead of optimizing and analyzing the system in context of routing algorithms and applications, we found the topology itself can offer us with good properties such as fault tolerance and resilience. In this paper, we discuss the recently designed (n,k)-star NoC topology and examine its properties and advantages as compared to the popular 2-D mesh topology. Then, since the design of NoC topology requires addressing of issues and measurements specified by runtime evaluation observations, we introduce the metrics of performance (n,k)-star topology applied on NoCs. Related experiments and simulations are done as well to examine the performance of (n,k)-star topology and comparison to 2-D mesh topology. Our simulation demonstrates (n,k)-star topology outperforms same-scale 2-D mesh topology while exhibiting fault tolerance properties.","PeriodicalId":205922,"journal":{"name":"2014 7th International Symposium on Resilient Control Systems (ISRCS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127541555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sacha Duff, Katie Del Guidice, Jesse Flint, N. Nguyen, Bonnie Kudrick
{"title":"The diagnosis and measurement of team resilience in sociotechnical systems","authors":"Sacha Duff, Katie Del Guidice, Jesse Flint, N. Nguyen, Bonnie Kudrick","doi":"10.1109/ISRCS.2014.6900088","DOIUrl":"https://doi.org/10.1109/ISRCS.2014.6900088","url":null,"abstract":"This paper presents a novel approach to diagnosing and measuring team resilience in sociotechnical systems. This approach is based on a multi-level model developed to study team phenomena from a general systems perspective. We will describe a methodology that uses a concept similar to flow within the psychological literature to measure a team's response to instances of sub-optimal system function. Team resilience is determined by examining flow disruptions, which are instances of sub-optimal system performance that disrupt normal system flow, and compensatory strategies, which are behaviors enacted by the team in response to the disruption to re-establish overall system flow. Approaching teams embedded in organizations from this perspective allows diagnosis of the systemic influences that contribute most to the variance in performance across entities, identification of pervasive latent systemic failures, and the development of a tailored taxonomy of behavioral teamwork dimensions, which can then be translated into metrics to measure team resilience in many contexts or team configurations.","PeriodicalId":205922,"journal":{"name":"2014 7th International Symposium on Resilient Control Systems (ISRCS)","volume":"49 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120902722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michael Thompson, Nathaniel Evans, Victoria Kisekka
{"title":"Multiple OS rotational environment an implemented Moving Target Defense","authors":"Michael Thompson, Nathaniel Evans, Victoria Kisekka","doi":"10.1109/ISRCS.2014.6900086","DOIUrl":"https://doi.org/10.1109/ISRCS.2014.6900086","url":null,"abstract":"Cyber-attacks continue to pose a major threat to existing critical infrastructure. Although suggestions for defensive strategies abound, Moving Target Defense (MTD) has only recently gained attention as a possible solution for mitigating cyber-attacks. The current work proposes a MTD technique that provides enhanced security through a rotation of multiple operating systems. The MTD solution developed in this research utilizes existing technology to provide a feasible dynamic defense solution that can be deployed easily in a real networking environment. In addition, the system we developed was tested extensively for effectiveness using CORE Impact Pro (CORE), Nmap, and manual penetration tests. The test results showed that platform diversity and rotation offer improved security. In addition, the likelihood of a successful attack decreased proportionally with time between rotations.","PeriodicalId":205922,"journal":{"name":"2014 7th International Symposium on Resilient Control Systems (ISRCS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125022070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Performance indicator dependency on measurement sets in a DC multi-converter power system","authors":"J. C. Jiménez, C. Nwankpa","doi":"10.1109/ISRCS.2014.6900109","DOIUrl":"https://doi.org/10.1109/ISRCS.2014.6900109","url":null,"abstract":"For power systems the problem of system observability lies in the solution of the state-estimation problem, which is the main component in modern power system management. Measurements of system parameters that allow monitoring of the power system are essential for energy management system applications and control center strategies. This paper will provide the ability to monitor the observability condition of a DC multi-converter based power system around system equilibrium points. The condition number of an observability Jacobian matrix is the performance measure and it quantifies how observable the system is based on available measurement sets. As the system becomes unobservable, the less reliable state estimation becomes, thereby affecting overall performance through capability degradation of controllers.","PeriodicalId":205922,"journal":{"name":"2014 7th International Symposium on Resilient Control Systems (ISRCS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115175931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}