Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145146
A. Víteček, M. Vítečková
The paper is devoted to the design of robust control algorithms for mechanical systems. Mechanical systems have a special form of mathematical models which allows application of the modified method of aggregation of the state variables. In the paper control algorithms for robust control design are derived and their use is shown in the example.
{"title":"Robust control of mechanical systems","authors":"A. Víteček, M. Vítečková","doi":"10.1109/CARPATHIANCC.2015.7145146","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145146","url":null,"abstract":"The paper is devoted to the design of robust control algorithms for mechanical systems. Mechanical systems have a special form of mathematical models which allows application of the modified method of aggregation of the state variables. In the paper control algorithms for robust control design are derived and their use is shown in the example.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124009933","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145087
Lukas Kypus, L. Vojtech, J. Hrad
The aim of the Object name services (ONS) project was to find a robust and stable way of automated communication to utilize name and directory services to support radio-frequency identification (RFID) ecosystem, mainly in the way that can leverage open source and standardized services and capability to be secured. All this work contributed to the new RFID services and Internet of Things (IoT) heterogeneous environments capabilities presentation. There is an increasing demand of transferred data volumes associated with each and every IP or non-IP discoverable objects. For example RFID tagged objects and sensors, as well as the need to bridge remaining communication compatibility issues between these two independent worlds. RFID and IoT ecosystems require sensitive implementation of security approaches and methods. There are still significant risks associated with their operations due to the content nature. One of the reasons of past failures could be lack of security as the integral part of design of each particular product, which is supposed to build ONS systems. Although we focused mainly on the availability and confidentiality concerns in this paper, there are still some remaining areas to be researched. We tried to identify the hardening impact by metrics evaluating operational status, resiliency, responsiveness and performance of managed ONS solution design. Design of redundant and hardened testing environment under tests brought us the visibility into the assurance of the internal communication security and showed behavior under the load of the components in such complex information service, with respect to an overall quality of the delivered ONS service.
{"title":"Security of ONS service for applications of the Internet of Things and their pilot implementation in academic network","authors":"Lukas Kypus, L. Vojtech, J. Hrad","doi":"10.1109/CARPATHIANCC.2015.7145087","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145087","url":null,"abstract":"The aim of the Object name services (ONS) project was to find a robust and stable way of automated communication to utilize name and directory services to support radio-frequency identification (RFID) ecosystem, mainly in the way that can leverage open source and standardized services and capability to be secured. All this work contributed to the new RFID services and Internet of Things (IoT) heterogeneous environments capabilities presentation. There is an increasing demand of transferred data volumes associated with each and every IP or non-IP discoverable objects. For example RFID tagged objects and sensors, as well as the need to bridge remaining communication compatibility issues between these two independent worlds. RFID and IoT ecosystems require sensitive implementation of security approaches and methods. There are still significant risks associated with their operations due to the content nature. One of the reasons of past failures could be lack of security as the integral part of design of each particular product, which is supposed to build ONS systems. Although we focused mainly on the availability and confidentiality concerns in this paper, there are still some remaining areas to be researched. We tried to identify the hardening impact by metrics evaluating operational status, resiliency, responsiveness and performance of managed ONS solution design. Design of redundant and hardened testing environment under tests brought us the visibility into the assurance of the internal communication security and showed behavior under the load of the components in such complex information service, with respect to an overall quality of the delivered ONS service.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124634888","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145116
M. Radecký, Jan Vykopal, P. Smutny
As web pages are becoming increasingly complex, with images and different page layouts, understanding how users examine the page is important. We used eye-tracking analysis of user behavior and performance in the use of web. Using GP3 Eye Tracker we created tracking system, which take into account syntactic elements and content structure of the tested web pages.
{"title":"Analysis of syntactic elements and structure of web pages using eye-tracking technology","authors":"M. Radecký, Jan Vykopal, P. Smutny","doi":"10.1109/CARPATHIANCC.2015.7145116","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145116","url":null,"abstract":"As web pages are becoming increasingly complex, with images and different page layouts, understanding how users examine the page is important. We used eye-tracking analysis of user behavior and performance in the use of web. Using GP3 Eye Tracker we created tracking system, which take into account syntactic elements and content structure of the tested web pages.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129789016","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145143
Patnk Urban, L. Landryová
This contribution is focused on designing a system according to the EEMUA standards and using knowledge obtained during the control system operation. It is important for process experts to build into and maintain knowledge and intelligence in the alarm system over time. A good alarm system requires that a lot of process knowledge is built into the system to optimize the alarm generation, suppression and presentation based on process expertise and operational experience. This contribution describes work on a project based on alarm system configuration tools and operation data provided from our industrial partner. The results and recommendations help process engineers to improve the systems over time by building into the system the knowledge required to achieve effective alarm suppression, and to optimize signal filtering settings, alarm limits and priorities system configuration.
{"title":"Process knowledge building an optimized alarm system","authors":"Patnk Urban, L. Landryová","doi":"10.1109/CARPATHIANCC.2015.7145143","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145143","url":null,"abstract":"This contribution is focused on designing a system according to the EEMUA standards and using knowledge obtained during the control system operation. It is important for process experts to build into and maintain knowledge and intelligence in the alarm system over time. A good alarm system requires that a lot of process knowledge is built into the system to optimize the alarm generation, suppression and presentation based on process expertise and operational experience. This contribution describes work on a project based on alarm system configuration tools and operation data provided from our industrial partner. The results and recommendations help process engineers to improve the systems over time by building into the system the knowledge required to achieve effective alarm suppression, and to optimize signal filtering settings, alarm limits and priorities system configuration.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128623278","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145086
J. Kulhanek, J. Škuta
The paper describes development of educational model of computer controlled fan. The model is designed as low cost, with several possibilities for learning of programming, signal analyses or control systems. In the paper is described mechanical design, electrical design and software design. In the paper is also described several educational tasks with this model.
{"title":"Design of education model with NI LabView","authors":"J. Kulhanek, J. Škuta","doi":"10.1109/CARPATHIANCC.2015.7145086","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145086","url":null,"abstract":"The paper describes development of educational model of computer controlled fan. The model is designed as low cost, with several possibilities for learning of programming, signal analyses or control systems. In the paper is described mechanical design, electrical design and software design. In the paper is also described several educational tasks with this model.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122988471","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145055
M. Dorda, P. Marton
The presented paper demonstrates the use of discrete event simulation for throughput assessment of a temporarily single-track tramline in the traffic terminal Ostrava-Svinov. Under normal conditions, the tramline is double-track. However, due to the reconstruction of Svinov Bridges, that are part of this traffic terminal, between 2011 and 2012, it was operated on a single track. This action had an obvious impact on the throughput of the tramline. In order to simulate and assess traffic on a single-track tramline, two pieces of software were used - ARENA and Witness. A short description of both simulations models, altogether with some results, is proposed in the paper.
{"title":"Simulation approach to throughput assessment of single-track tramline","authors":"M. Dorda, P. Marton","doi":"10.1109/CARPATHIANCC.2015.7145055","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145055","url":null,"abstract":"The presented paper demonstrates the use of discrete event simulation for throughput assessment of a temporarily single-track tramline in the traffic terminal Ostrava-Svinov. Under normal conditions, the tramline is double-track. However, due to the reconstruction of Svinov Bridges, that are part of this traffic terminal, between 2011 and 2012, it was operated on a single track. This action had an obvious impact on the throughput of the tramline. In order to simulate and assess traffic on a single-track tramline, two pieces of software were used - ARENA and Witness. A short description of both simulations models, altogether with some results, is proposed in the paper.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131233337","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145065
Oto Haffner, Zdenka Králová
The paper presents a case study on simulation analysis of a real process aiming to improve its performance. The final products are the handmade goods belonged to the category of children's toys. The objects of the analysis are organizational and technological changes, enabling to expand the actual process capacities. Simulation software WITNESS is used for modelling and analysis.
{"title":"Simulation analysis of a real small production process","authors":"Oto Haffner, Zdenka Králová","doi":"10.1109/CARPATHIANCC.2015.7145065","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145065","url":null,"abstract":"The paper presents a case study on simulation analysis of a real process aiming to improve its performance. The final products are the handmade goods belonged to the category of children's toys. The objects of the analysis are organizational and technological changes, enabling to expand the actual process capacities. Simulation software WITNESS is used for modelling and analysis.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131266875","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145040
Tomás Barot, M. Kubalcik
The predictive control is a modern approach, which can be used for many kinds of processes in the engineering practice. Also processes with fast dynamics can be controlled by the principle of the predictive control. However, there is a problem to realize a control algorithm in a short sampling period in case of the higher horizons and many constraints. Then the optimization task is not feasible using the traditional approach. In this paper, the modification of the controller and optimizer is presented. The proposed approach is based on using of the information from the control and optimization, which is not generally used. The aim is to reduce the computational complexity for this specific case of predictive control. The modified approach is discussed and verified by simulation.
{"title":"Predictive control of processes with fast dynamics","authors":"Tomás Barot, M. Kubalcik","doi":"10.1109/CARPATHIANCC.2015.7145040","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145040","url":null,"abstract":"The predictive control is a modern approach, which can be used for many kinds of processes in the engineering practice. Also processes with fast dynamics can be controlled by the principle of the predictive control. However, there is a problem to realize a control algorithm in a short sampling period in case of the higher horizons and many constraints. Then the optimization task is not feasible using the traditional approach. In this paper, the modification of the controller and optimizer is presented. The proposed approach is based on using of the information from the control and optimization, which is not generally used. The aim is to reduce the computational complexity for this specific case of predictive control. The modified approach is discussed and verified by simulation.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134184965","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145039
V. Baranova, L. Landryová, J. Futó
This article deals with the creation of dynamic models in the form of transient characteristics obtained from the monitoring system boring machine-rock used in tunneling Branisko using the tunnel boring method (TBM). The rating system is the creation of statistical models and their approximation of the measured, respectively, monitored values. As a starting point a statistical model was used that was obtained by transient characteristics. The statistical model was then replaced by a new model by approximation. The objective is to design a model that would ensure that the output variable accurately monitors changes in input, and that the suppressed disturbance variables affect the output variable. To assess how the solutions to this goal are being approached, it is necessary to choose some quantitative indicators and indicators of the quality and accuracy of the model. The quality requirements for the model are expressed using quality indicators, respectively, selected criteria. The quality indicators model enables us to judge several variants of solutions and choose the most appropriate one. The following quality parameters of the model will be based on an analogy for the synthesis of control loops. The accuracy of the model is given by the deviation of the steady-state system in the course of a given type of input and a disturbance variable. The advantage of using these quality indicators for the model is their explicitness and that gives direct information on the timing of the reporting process. The disadvantage of these quality parameters of the model is that not all of them fully describe the whole course of the transient response. For these reasons, we have chosen an integral quality criterion for the model system.
{"title":"Quality indicator model of dynamic system boring machine - Rock","authors":"V. Baranova, L. Landryová, J. Futó","doi":"10.1109/CARPATHIANCC.2015.7145039","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145039","url":null,"abstract":"This article deals with the creation of dynamic models in the form of transient characteristics obtained from the monitoring system boring machine-rock used in tunneling Branisko using the tunnel boring method (TBM). The rating system is the creation of statistical models and their approximation of the measured, respectively, monitored values. As a starting point a statistical model was used that was obtained by transient characteristics. The statistical model was then replaced by a new model by approximation. The objective is to design a model that would ensure that the output variable accurately monitors changes in input, and that the suppressed disturbance variables affect the output variable. To assess how the solutions to this goal are being approached, it is necessary to choose some quantitative indicators and indicators of the quality and accuracy of the model. The quality requirements for the model are expressed using quality indicators, respectively, selected criteria. The quality indicators model enables us to judge several variants of solutions and choose the most appropriate one. The following quality parameters of the model will be based on an analogy for the synthesis of control loops. The accuracy of the model is given by the deviation of the steady-state system in the course of a given type of input and a disturbance variable. The advantage of using these quality indicators for the model is their explicitness and that gives direct information on the timing of the reporting process. The disadvantage of these quality parameters of the model is that not all of them fully describe the whole course of the transient response. For these reasons, we have chosen an integral quality criterion for the model system.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114420296","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}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145108
E. Petre, Dorin Cendrescu
The design of some adaptive and robust-adaptive control strategies for a microalgae fermentation process that is carried out inside a Continuous Stirred Tank Reactor (CSTR) is presented. Initially, an indirect adaptive controller is designed by coupling a linearizing controller with a new parameter estimator used for estimation of unknown kinetics. Afterwards, under the realistic assumption that the reaction kinetics are unknown, time-varying and moreover the influent flow rate is uncertain and time-varying, but some lower and upper bounds of these uncertainties are known, two robust-adaptive control structures are proposed by combining a linearizing control law with two new appropriately parameter estimators able to estimates the unknown reaction rates. Numerical simulations are included to validate the designed controllers applied to a continuous fermentation bioprocess used for microalgae production.
{"title":"On-line estimation and control strategies for a microalgae fermentation continuous process","authors":"E. Petre, Dorin Cendrescu","doi":"10.1109/CARPATHIANCC.2015.7145108","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145108","url":null,"abstract":"The design of some adaptive and robust-adaptive control strategies for a microalgae fermentation process that is carried out inside a Continuous Stirred Tank Reactor (CSTR) is presented. Initially, an indirect adaptive controller is designed by coupling a linearizing controller with a new parameter estimator used for estimation of unknown kinetics. Afterwards, under the realistic assumption that the reaction kinetics are unknown, time-varying and moreover the influent flow rate is uncertain and time-varying, but some lower and upper bounds of these uncertainties are known, two robust-adaptive control structures are proposed by combining a linearizing control law with two new appropriately parameter estimators able to estimates the unknown reaction rates. Numerical simulations are included to validate the designed controllers applied to a continuous fermentation bioprocess used for microalgae production.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115849168","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}
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