Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145105
N. Pătrășcoiu, I. C. Barbu
In this paper we propose an application written in LabVIEW through which a number of acquisition modules are controlled and these modules realize the initial data processing. Control consists in selection for each of these modules, their inputs selection and retrieves information from them. The physical connection is made by RS-485 bus and the transmission protocol used is MODBUS.
{"title":"Monitoring and supervision solution for distributed control systems","authors":"N. Pătrășcoiu, I. C. Barbu","doi":"10.1109/CARPATHIANCC.2015.7145105","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145105","url":null,"abstract":"In this paper we propose an application written in LabVIEW through which a number of acquisition modules are controlled and these modules realize the initial data processing. Control consists in selection for each of these modules, their inputs selection and retrieves information from them. The physical connection is made by RS-485 bus and the transmission protocol used is MODBUS.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"27 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":"125548698","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.2015.7145058
I. Ferenczi, J. Vásárhelyi
This Real-time Industrial Ethernet IO system is a communication concept for implementing modular, distributed applications on the Ethernet. User data from the field devices are transmitted cyclically via a real-time industrial Ethernet channel to the process image of an automation control system. The paper, presents a very efficient method to measuring and analyzing the reaction times of IO device driver channels.
{"title":"Reaction time measurement of non-synchronized Industrial Ethernet IO device","authors":"I. Ferenczi, J. Vásárhelyi","doi":"10.1109/CARPATHIANCC.2015.7145058","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145058","url":null,"abstract":"This Real-time Industrial Ethernet IO system is a communication concept for implementing modular, distributed applications on the Ethernet. User data from the field devices are transmitted cyclically via a real-time industrial Ethernet channel to the process image of an automation control system. The paper, presents a very efficient method to measuring and analyzing the reaction times of IO device driver channels.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"13 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":"130788188","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.2015.7145150
H. Wiśniewski, L. Płonecki
IPMC is classified as one of the so-called smart materials, whose properties can be designed depending on the needs that arise. It is possible to construct complex mechanical structures using those materials. Mechanical structures include a drive, structural frame, bearings, and other components. Smart materials make it possible to integrate those functionalities to be contained within one element. An additional advantage is offered by the fact that, depending on the application design, they can operate as sensors or actuators. The matrix of IPMC is Nafion polymer membrane, plated on both sides with a 10-20 μm platinum and gold layer. The membrane contains anions, which are not capable of moving, whereas cations can freely travel within the membrane. When voltage is applied to IPMC electrodes, an electric field E is created, which makes mobile cations, together with water molecules, migrate within the membrane towards the negative electrode. As a result, pressure increases in the negative electrode area, whereas it decreases in the positive electrode area, which causes the polymer to bend. IPMC provides an interesting option for the system elements, as it makes it possible to generate low forces, of the order of 10 to 40 times of its weight (given in grams). The first part of the paper provides a description of the control measurement system. The second part investigates dynamic properties of the IPMC stripes of the two sizes: 8.47×25.48×0.34mm and 10×37.6×l.67mm.
{"title":"The dynamic properties of the IPMC polymer","authors":"H. Wiśniewski, L. Płonecki","doi":"10.1109/CARPATHIANCC.2015.7145150","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145150","url":null,"abstract":"IPMC is classified as one of the so-called smart materials, whose properties can be designed depending on the needs that arise. It is possible to construct complex mechanical structures using those materials. Mechanical structures include a drive, structural frame, bearings, and other components. Smart materials make it possible to integrate those functionalities to be contained within one element. An additional advantage is offered by the fact that, depending on the application design, they can operate as sensors or actuators. The matrix of IPMC is Nafion polymer membrane, plated on both sides with a 10-20 μm platinum and gold layer. The membrane contains anions, which are not capable of moving, whereas cations can freely travel within the membrane. When voltage is applied to IPMC electrodes, an electric field E is created, which makes mobile cations, together with water molecules, migrate within the membrane towards the negative electrode. As a result, pressure increases in the negative electrode area, whereas it decreases in the positive electrode area, which causes the polymer to bend. IPMC provides an interesting option for the system elements, as it makes it possible to generate low forces, of the order of 10 to 40 times of its weight (given in grams). The first part of the paper provides a description of the control measurement system. The second part investigates dynamic properties of the IPMC stripes of the two sizes: 8.47×25.48×0.34mm and 10×37.6×l.67mm.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"99 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":"134159474","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.2015.7145126
Vladinir Serbak, P. Liscinsky
In the paper is proposed a modified method of faults estimation for linear dynamic systems. An enhanced algorithm using H∞ approach is provided to verify stability of the adaptive observer for fault diagnosis and to define its parameter design condition, giving a modified adaptive fault estimation algorithm with improved performance of fault estimation. Using the on-line obtained fault information, the observer-based fault tolerant controller is designed reflecting the separation principle, which stabilizes the closed-loop system by compensating a loss of the actuator effectiveness.
{"title":"Additive faults estimation based on adaptive observers for linear systems","authors":"Vladinir Serbak, P. Liscinsky","doi":"10.1109/CARPATHIANCC.2015.7145126","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145126","url":null,"abstract":"In the paper is proposed a modified method of faults estimation for linear dynamic systems. An enhanced algorithm using H∞ approach is provided to verify stability of the adaptive observer for fault diagnosis and to define its parameter design condition, giving a modified adaptive fault estimation algorithm with improved performance of fault estimation. Using the on-line obtained fault information, the observer-based fault tolerant controller is designed reflecting the separation principle, which stabilizes the closed-loop system by compensating a loss of the actuator effectiveness.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"29 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":"116029086","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.2015.7145057
M. Durdán, K. Kostúr
The underground coal gasification (UCG) is the process, which can be attractive from environmental and economic aspect and is able to have a wide utilization in the future. This technology is less expensive than conventional mining. It is appropriate to construct a physical model of the gasifier in the geometrical similarity for research and good analysis of UCG process under laboratory conditions. The heat losses in the process realized by the gasifier must correspond to heat losses in real seam. The paper presents a comparison study of the heat losses on the gasifier and in the real seam. The result of this study is the proposal of thermal isolation of the gasifier.
{"title":"Modelling of heat losses in UCG under laboratory conditions and in situ","authors":"M. Durdán, K. Kostúr","doi":"10.1109/CARPATHIANCC.2015.7145057","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145057","url":null,"abstract":"The underground coal gasification (UCG) is the process, which can be attractive from environmental and economic aspect and is able to have a wide utilization in the future. This technology is less expensive than conventional mining. It is appropriate to construct a physical model of the gasifier in the geometrical similarity for research and good analysis of UCG process under laboratory conditions. The heat losses in the process realized by the gasifier must correspond to heat losses in real seam. The paper presents a comparison study of the heat losses on the gasifier and in the real seam. The result of this study is the proposal of thermal isolation of the gasifier.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"31 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":"134129563","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.2015.7145136
M. Szega, H. Rusinowski
The increase of measurement data reliability by the data reconciliation method is today an indispensable process in modern control systems of the operation of thermal installations. The results of measurements involve errors which are transmitted to errors of unknown values determined by means of mass and energy balance equations. Experiences from operation of the thermal systems show that assumed for data reconciliation calculations value of measurement uncertainty has significant influence on validation of the results of measurements and calculated values of indicators characterizing the operating conditions. The paper presents an analysis of the influence of the assumed measurement uncertainty on the results of the data reconciliation calculations and value of the specific consumption of chemical energy of fuels in the selected steam combined heat and power unit. Multivariate calculations for different values of assumed uncertainty of measurements and simulated limiting errors of measurements error were carried out. The results of these calculations to determine the sensitivity of the assumed measurements uncertainty on the specific consumption of chemical energy of fuels in the analyzed combined heat and power unit have been used.
{"title":"Sensitivity analysis of the specific consumption of chemical energy of fuels for assumed uncertainty of selected measurements in a steam combined heat and power unit","authors":"M. Szega, H. Rusinowski","doi":"10.1109/CARPATHIANCC.2015.7145136","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145136","url":null,"abstract":"The increase of measurement data reliability by the data reconciliation method is today an indispensable process in modern control systems of the operation of thermal installations. The results of measurements involve errors which are transmitted to errors of unknown values determined by means of mass and energy balance equations. Experiences from operation of the thermal systems show that assumed for data reconciliation calculations value of measurement uncertainty has significant influence on validation of the results of measurements and calculated values of indicators characterizing the operating conditions. The paper presents an analysis of the influence of the assumed measurement uncertainty on the results of the data reconciliation calculations and value of the specific consumption of chemical energy of fuels in the selected steam combined heat and power unit. Multivariate calculations for different values of assumed uncertainty of measurements and simulated limiting errors of measurements error were carried out. The results of these calculations to determine the sensitivity of the assumed measurements uncertainty on the specific consumption of chemical energy of fuels in the analyzed combined heat and power unit have been used.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"14 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":"116647477","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.2015.7145098
A. Mystkowski, E. Pawłuszewicz
This paper reports on novel nonlinear observer for a flux-controlled active magnetic bearing (AMB). Also a nonlinear state-feedback control law is designed for AMB in zero-bias mode due to voltage saturation. The nonlinear reduced-order observer is designed, to estimate the flux, and incorporated in equivalence implementation of the nonlinear state-feedback controller. The main design tools such as sliding mode control, Control Lyapunov Function (CLF) and passivity are used in this framework. Numerical simulations show the effectiveness of the proposed observer-feedback and state-feedback designs.
{"title":"Remarks on some robust nonlinear observer and state-feedback zero-bias control of AMB","authors":"A. Mystkowski, E. Pawłuszewicz","doi":"10.1109/CARPATHIANCC.2015.7145098","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145098","url":null,"abstract":"This paper reports on novel nonlinear observer for a flux-controlled active magnetic bearing (AMB). Also a nonlinear state-feedback control law is designed for AMB in zero-bias mode due to voltage saturation. The nonlinear reduced-order observer is designed, to estimate the flux, and incorporated in equivalence implementation of the nonlinear state-feedback controller. The main design tools such as sliding mode control, Control Lyapunov Function (CLF) and passivity are used in this framework. Numerical simulations show the effectiveness of the proposed observer-feedback and state-feedback designs.","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":"126070220","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.2015.7145046
S. Brassai, Szabolcs Hajdú, T. Tamas, L. Bakó
In the paper the implementation on reconfigurable hardware of a Sugeno type neuro adaptive fuzzy inference system is proposed to be presented. The pipeline and parallel pipeline architecture play an important role in modelling the algorithm for the FPGA based implementation. In order to design the pipeline-parallel model of the controller two different methods were used: high level synthesis tool respectively System Generator. Some of the inference systems sub-modules were implemented in VHDL. The proposed hardware model's processing speed is very high, allows the controller to be used in real-time applications.
{"title":"Hardware implemented adaptive neuro fuzzy system","authors":"S. Brassai, Szabolcs Hajdú, T. Tamas, L. Bakó","doi":"10.1109/CARPATHIANCC.2015.7145046","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145046","url":null,"abstract":"In the paper the implementation on reconfigurable hardware of a Sugeno type neuro adaptive fuzzy inference system is proposed to be presented. The pipeline and parallel pipeline architecture play an important role in modelling the algorithm for the FPGA based implementation. In order to design the pipeline-parallel model of the controller two different methods were used: high level synthesis tool respectively System Generator. Some of the inference systems sub-modules were implemented in VHDL. The proposed hardware model's processing speed is very high, allows the controller to be used in real-time applications.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"36 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":"125040993","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.2015.7145047
M. Cala
The paper focuses on development of a control system for an electrodynamic exciter used in vibration testing. There is described one of the possible ways to generate sine sweep and random testing signals based on filtering the control value with an inverse filter created from frequency response of an exciter. The system is designed to be universal, that wide range of components within control loop, as piezoelectric accelerometers and electrodynamic shakers, can be utilized.
{"title":"Control system for a small electrodynamic exciter","authors":"M. Cala","doi":"10.1109/CARPATHIANCC.2015.7145047","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145047","url":null,"abstract":"The paper focuses on development of a control system for an electrodynamic exciter used in vibration testing. There is described one of the possible ways to generate sine sweep and random testing signals based on filtering the control value with an inverse filter created from frequency response of an exciter. The system is designed to be universal, that wide range of components within control loop, as piezoelectric accelerometers and electrodynamic shakers, can be utilized.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"66 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":"127159509","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.2015.7145095
A. Mojžišová, J. Pócsová
Internet and Information and Communication Technologies (ICT) have changed people's lifes. New technologies dramatically changed education and learning process. Traditional approaches are insufficient mainly in the area of engineering education. In recent years integration of ICT into the education has brought electronic learning (e-learning). E-learning is alternative to traditional forms of education, but it also has disadvantages and pitfalls. Therefore new concepts combine several different educational methods and learning styles. This paper deals with application of the new approach in the Engineering education in Control and Computer systems.
{"title":"Application of a new approach in the engineering education","authors":"A. Mojžišová, J. Pócsová","doi":"10.1109/CARPATHIANCC.2015.7145095","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145095","url":null,"abstract":"Internet and Information and Communication Technologies (ICT) have changed people's lifes. New technologies dramatically changed education and learning process. Traditional approaches are insufficient mainly in the area of engineering education. In recent years integration of ICT into the education has brought electronic learning (e-learning). E-learning is alternative to traditional forms of education, but it also has disadvantages and pitfalls. Therefore new concepts combine several different educational methods and learning styles. This paper deals with application of the new approach in the Engineering education in Control and Computer systems.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"76 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":"122833901","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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