Pub Date : 2015-12-17DOI: 10.1109/ICEEE.2015.7357814
Ricardo Casas Carrillo, O. Begovich, J. Ruiz-León, Mario Ángel Siller
This paper presents an application of LabVIEW™ software for the monitoring and automation of a greenhouse prototype located in Jalisco, Mexico. A database was used to monitoring the greenhouse natural climate evolution and study the “greenhouse climate” under an on/off control of lateral windows and forced ventilation. This allows to test whether actions proposed by some farmers in Jalisco, Mexico, are useful to modify the “greenhouse climate”, for instance, the effect over the temperature in this greenhouse when lateral windows and forced ventilation are controlled. Also, this software is used to automate the drip irrigation system, which allows greater precision in regulating the timing of events irrigation and amount of water applied. And in another experiment the humidifiers contribution to the internal temperature and relative humidity are exposed.
{"title":"Characterizing the behavior of “greenhouse climate”: a LabVIEW™ application","authors":"Ricardo Casas Carrillo, O. Begovich, J. Ruiz-León, Mario Ángel Siller","doi":"10.1109/ICEEE.2015.7357814","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357814","url":null,"abstract":"This paper presents an application of LabVIEW™ software for the monitoring and automation of a greenhouse prototype located in Jalisco, Mexico. A database was used to monitoring the greenhouse natural climate evolution and study the “greenhouse climate” under an on/off control of lateral windows and forced ventilation. This allows to test whether actions proposed by some farmers in Jalisco, Mexico, are useful to modify the “greenhouse climate”, for instance, the effect over the temperature in this greenhouse when lateral windows and forced ventilation are controlled. Also, this software is used to automate the drip irrigation system, which allows greater precision in regulating the timing of events irrigation and amount of water applied. And in another experiment the humidifiers contribution to the internal temperature and relative humidity are exposed.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129825548","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357953
G. Casas, R. C. Campos, M. A. Heredia, F. Martínez
Let P be a set of 3k points in the Euclidean plane. A 3-matching is a partition of P into k subsets of 3 points each, called triplets. The cost of each triplet {a, b, c} is given by min{|ab| + |bc|, |bc| + |ca|, |ca| + |ab|}, and the cost of the 3-matching is the sum of the costs of its triplets. The problem of finding a minimum cost Euclidean 3-matching is known to be NP-hard. Two integer programming formulations for this problem were introduced by Johnsson, Magyar, and Nevalainen. First, we prove that the linear programming relaxations of these two models are equivalent. Second, we introduce a new triplet integer programming model. Third, we compare the linear programming relaxations of these three models.
{"title":"A triplet integer programming model for the Euclidean 3-matching problem","authors":"G. Casas, R. C. Campos, M. A. Heredia, F. Martínez","doi":"10.1109/ICEEE.2015.7357953","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357953","url":null,"abstract":"Let P be a set of 3k points in the Euclidean plane. A 3-matching is a partition of P into k subsets of 3 points each, called triplets. The cost of each triplet {a, b, c} is given by min{|ab| + |bc|, |bc| + |ca|, |ca| + |ab|}, and the cost of the 3-matching is the sum of the costs of its triplets. The problem of finding a minimum cost Euclidean 3-matching is known to be NP-hard. Two integer programming formulations for this problem were introduced by Johnsson, Magyar, and Nevalainen. First, we prove that the linear programming relaxations of these two models are equivalent. Second, we introduce a new triplet integer programming model. Third, we compare the linear programming relaxations of these three models.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129877500","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357993
J. Perez-Espinoza, Víctor Jesús Sosa Sosa, J. L. González
The growth of private clouds causes that more efforts be needed to manage this type of infrastructure and efficient monitoring tools be required by both providers and consumers. Cloud monitoring involves the handling of large amounts of data generated by hundreds or thousands of virtual and physical resources. These resources require distributed monitoring systems in order to be properly monitored and avoid overloaded scenarios. Many of the cloud resources need specific monitoring services that can be different, these differences impact in how they should be distributed by the monitoring systems in order to keep load balancing. In this paper we propose a distribution scheme for cloud monitoring systems, where a set of collectors extract the information of cloud resources in order to reduce the response time when obtaining a global state view of the cloud. Furthermore, we propose a scheme called Policy Aware Allocation (PAA) for load balancing in collectors, where the needs of monitoring for each resource are considered when allocating cloud resources into collectors. The propose schemes were implemented in a distributed monitoring platform. We tested the distribution scheme using different number of collectors and the experiments revealed a reduction in response time when the monitored resources are distributed. For load balancing, we compared our PAA with a standard round robin method, our proposal showed the best results improving load balancing in distributed monitoring systems even when failures occur.
{"title":"Distribution and load balancing strategies in private cloud monitoring","authors":"J. Perez-Espinoza, Víctor Jesús Sosa Sosa, J. L. González","doi":"10.1109/ICEEE.2015.7357993","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357993","url":null,"abstract":"The growth of private clouds causes that more efforts be needed to manage this type of infrastructure and efficient monitoring tools be required by both providers and consumers. Cloud monitoring involves the handling of large amounts of data generated by hundreds or thousands of virtual and physical resources. These resources require distributed monitoring systems in order to be properly monitored and avoid overloaded scenarios. Many of the cloud resources need specific monitoring services that can be different, these differences impact in how they should be distributed by the monitoring systems in order to keep load balancing. In this paper we propose a distribution scheme for cloud monitoring systems, where a set of collectors extract the information of cloud resources in order to reduce the response time when obtaining a global state view of the cloud. Furthermore, we propose a scheme called Policy Aware Allocation (PAA) for load balancing in collectors, where the needs of monitoring for each resource are considered when allocating cloud resources into collectors. The propose schemes were implemented in a distributed monitoring platform. We tested the distribution scheme using different number of collectors and the experiments revealed a reduction in response time when the monitored resources are distributed. For load balancing, we compared our PAA with a standard round robin method, our proposal showed the best results improving load balancing in distributed monitoring systems even when failures occur.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122693250","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357926
Kristal K. Trejo, J. Clempner, A. Poznyak
The notion of collaboration implies that related agents interact with each other looking for cooperative stability. This notion consents agents to select optimal strategies and to condition their own behavior on the behavior of others in a strategic forward looking manner. In game theory the collective stability is a special case of the Nash equilibrium called strong Nash equilibrium. In this paper we present a novel method for computing the Strong Lp-Nash equilibrium in case of a metric state space for a class of time-discrete ergodic controllable Markov chains games. We first present a general solution for the Lp-norm for computing the Strong Lp-Nash equilibrium and then, we suggest an explicit solution involving the norms L1 and L2. For solving the problem we use the extraproximal method. We employ the Tikhonov's regularization method to ensure the convergence of the cost-functions to a unique equilibrium point. The method converges in exponential time to a unique Strong Lp-Nash equilibrium. A game theory example illustrates the main results.
{"title":"Computing the Lp-strong nash equilibrium looking for cooperative stability in multiple agents markov games","authors":"Kristal K. Trejo, J. Clempner, A. Poznyak","doi":"10.1109/ICEEE.2015.7357926","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357926","url":null,"abstract":"The notion of collaboration implies that related agents interact with each other looking for cooperative stability. This notion consents agents to select optimal strategies and to condition their own behavior on the behavior of others in a strategic forward looking manner. In game theory the collective stability is a special case of the Nash equilibrium called strong Nash equilibrium. In this paper we present a novel method for computing the Strong Lp-Nash equilibrium in case of a metric state space for a class of time-discrete ergodic controllable Markov chains games. We first present a general solution for the Lp-norm for computing the Strong Lp-Nash equilibrium and then, we suggest an explicit solution involving the norms L1 and L2. For solving the problem we use the extraproximal method. We employ the Tikhonov's regularization method to ensure the convergence of the cost-functions to a unique equilibrium point. The method converges in exponential time to a unique Strong Lp-Nash equilibrium. A game theory example illustrates the main results.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131554850","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357995
J. A. Hernández, F. Gómez-Castañeda, J. Moreno-Cadenas
Mechanisms for pattern formation in biological organisms and chemical reactions have been broadly studied in last half of past century. Pattern formation also is frequently observed in many experiments. Traditional static patterns on the plane are patches forming hexagons, stripes and inverted hexagonal patches. Frequently, they are studied using reaction-diffusion models. The equation of Swift-Hohenberg also has been a paradigm for the formation of these structures, but also for studies of localized patterns. In this paper, we continue the analysis of behavior about a generalized Swift-Hohenberg equation considered previously. Setting a positive distance between two gaps of wave numbers, new patterns having different shapes and sizes can be produced with the proposed model.
{"title":"Formation of planar static patterns using separated gaps of wave numbers in a generalized Swift-Hohenberg model","authors":"J. A. Hernández, F. Gómez-Castañeda, J. Moreno-Cadenas","doi":"10.1109/ICEEE.2015.7357995","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357995","url":null,"abstract":"Mechanisms for pattern formation in biological organisms and chemical reactions have been broadly studied in last half of past century. Pattern formation also is frequently observed in many experiments. Traditional static patterns on the plane are patches forming hexagons, stripes and inverted hexagonal patches. Frequently, they are studied using reaction-diffusion models. The equation of Swift-Hohenberg also has been a paradigm for the formation of these structures, but also for studies of localized patterns. In this paper, we continue the analysis of behavior about a generalized Swift-Hohenberg equation considered previously. Setting a positive distance between two gaps of wave numbers, new patterns having different shapes and sizes can be produced with the proposed model.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130613620","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357924
Gerardo Marcos Tornez-Xavier, L. M. Flores-Nava, F. Gómez-Castañeda, J. Moreno-Cadenas
This work presents an optimized version in FPGA technology of a digital system, which solves in real time the Blind Source Separation problem using the Independent Component Analysis, ICA algorithm and following the Maximum Information technique, INFOMAX. To demonstrate the FPGA realization, we use a mix of three sinusoidal signals, which represents three independent sources, with 1000Hz, 800Hz and 600Hz values in frequency. The mixed signal is treated by the ICA system. The digital system in FPGA was analyzed first in Simulink of Matlab, evaluating its performance. Then, the FPGA architecture, which was optimized observing a multiplexing scheme, is proposed where the number of used DSP resources is minimal. This leads to extend this multiplexing scheme to cover future designs with more signals.
{"title":"FPGA implementation of the ICA algorithm using multiplexing","authors":"Gerardo Marcos Tornez-Xavier, L. M. Flores-Nava, F. Gómez-Castañeda, J. Moreno-Cadenas","doi":"10.1109/ICEEE.2015.7357924","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357924","url":null,"abstract":"This work presents an optimized version in FPGA technology of a digital system, which solves in real time the Blind Source Separation problem using the Independent Component Analysis, ICA algorithm and following the Maximum Information technique, INFOMAX. To demonstrate the FPGA realization, we use a mix of three sinusoidal signals, which represents three independent sources, with 1000Hz, 800Hz and 600Hz values in frequency. The mixed signal is treated by the ICA system. The digital system in FPGA was analyzed first in Simulink of Matlab, evaluating its performance. Then, the FPGA architecture, which was optimized observing a multiplexing scheme, is proposed where the number of used DSP resources is minimal. This leads to extend this multiplexing scheme to cover future designs with more signals.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122074869","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357996
C. Mitre-Arreguin, R. Castro-Linares, M. Velasco-Villa, M. Duarte-Mermoud
In this paper, the problem of coordination control in the formation of a finite group of mobile robots based on its discrete-time model is addressed. The objective is to use their exact discrete “kinematic” model to obtain a control law, which must assure that each robot hold its position in a particular formation while they follow a desired path. The stability of the formation of the group of robots in closed loop with the control law is studied using Lyapunov techniques and the proposed scheme is evaluated through experimentation.
{"title":"Coordination of a group of mobile robots based on discrete models","authors":"C. Mitre-Arreguin, R. Castro-Linares, M. Velasco-Villa, M. Duarte-Mermoud","doi":"10.1109/ICEEE.2015.7357996","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357996","url":null,"abstract":"In this paper, the problem of coordination control in the formation of a finite group of mobile robots based on its discrete-time model is addressed. The objective is to use their exact discrete “kinematic” model to obtain a control law, which must assure that each robot hold its position in a particular formation while they follow a desired path. The stability of the formation of the group of robots in closed loop with the control law is studied using Lyapunov techniques and the proposed scheme is evaluated through experimentation.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123482763","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357989
F. Muñoz, M. B. Estrada, I. González-Hernández, S. Salazar, R. Lozano
This article proposes two control strategies to track a desired altitude of an Unmanned Aircraft System (UAS). These strategies are a Super-Twisting Sliding Mode Controller (Super Twisting-SMC) and a Modified Super-Twisting Sliding Mode Controller (Modified Super Twisting-SMC), both controllers are robusts and present a satisfactory effectiveness even under external disturbances. The Lyapunov Stability Theory is used to guarantee the asymptotic convergence of the altitude tracking error in both control laws. To demonstrate the performance of the proposed solutions, a set of simulation results and experimental results are presented. To carry out the experiments an holonomic quad-rotor UAS is used and their altitude is obtained by using a Motion Capture System. From the theoretical and experimental results it can be proved that the Modified Super Twisting-SMC presents a faster response than the Super Twisting-SMC.
本文提出了两种控制策略来跟踪无人机系统(UAS)的期望高度。这两种策略分别是超扭转滑模控制器(Super twistling - smc)和修正超扭转滑模控制器(Modified Super twistling - smc)，两种控制器都具有鲁棒性，即使在外部干扰下也能表现出令人满意的有效性。利用李雅普诺夫稳定性理论保证了两种控制律下高度跟踪误差的渐近收敛。为了证明所提出的解决方案的性能，给出了一组仿真结果和实验结果。为了进行实验，采用了一个完整的四旋翼无人机，并通过运动捕捉系统获得了它们的高度。理论和实验结果表明，改进的超捻- smc比超捻- smc具有更快的响应速度。
{"title":"Super Twisting vs Modified Super Twisting algorithm for altitude control of an Unmanned Aircraft System","authors":"F. Muñoz, M. B. Estrada, I. González-Hernández, S. Salazar, R. Lozano","doi":"10.1109/ICEEE.2015.7357989","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357989","url":null,"abstract":"This article proposes two control strategies to track a desired altitude of an Unmanned Aircraft System (UAS). These strategies are a Super-Twisting Sliding Mode Controller (Super Twisting-SMC) and a Modified Super-Twisting Sliding Mode Controller (Modified Super Twisting-SMC), both controllers are robusts and present a satisfactory effectiveness even under external disturbances. The Lyapunov Stability Theory is used to guarantee the asymptotic convergence of the altitude tracking error in both control laws. To demonstrate the performance of the proposed solutions, a set of simulation results and experimental results are presented. To carry out the experiments an holonomic quad-rotor UAS is used and their altitude is obtained by using a Motion Capture System. From the theoretical and experimental results it can be proved that the Modified Super Twisting-SMC presents a faster response than the Super Twisting-SMC.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123178757","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357978
V. Merupo, S. Velumani, M. Bizarro, A. Kassiba
Cu-doped BiVO4 nanoparticles were synthesized by sol-gel technique. Doping effects of the host BiVO4 materials were characterized for structural, vibrational, morphological and optical investigations. It was deduced from XRD and micro Raman analysis, that Cu-doped BiVO4 showed lattice doping of Cu in the host crystal sites. Cu doped BiVO4 show 50 - 100 nm range sized particles as compared to pristine sample, which shows larger particle size in the range of 400-500 nm. Broad optical absorption in the range of 500 -800 nm is seen for Cu doped BiVO4 as compared to pristine form with slight band gap reduction as observed from DRS analysis. The calculated energy band gaps are 2.49 and 2.54 eV for 2 at.% Cu doped and pure BiVO4 respectively.
{"title":"Structural, morphological and optical properties of sol-gel prepared Cu doped BiVO4 powders","authors":"V. Merupo, S. Velumani, M. Bizarro, A. Kassiba","doi":"10.1109/ICEEE.2015.7357978","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357978","url":null,"abstract":"Cu-doped BiVO4 nanoparticles were synthesized by sol-gel technique. Doping effects of the host BiVO4 materials were characterized for structural, vibrational, morphological and optical investigations. It was deduced from XRD and micro Raman analysis, that Cu-doped BiVO4 showed lattice doping of Cu in the host crystal sites. Cu doped BiVO4 show 50 - 100 nm range sized particles as compared to pristine sample, which shows larger particle size in the range of 400-500 nm. Broad optical absorption in the range of 500 -800 nm is seen for Cu doped BiVO4 as compared to pristine form with slight band gap reduction as observed from DRS analysis. The calculated energy band gaps are 2.49 and 2.54 eV for 2 at.% Cu doped and pure BiVO4 respectively.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124124656","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 : 2015-12-17DOI: 10.1109/ICEEE.2015.7357899
S. Keshtkar, A. Poznyak, Eusebio E. Hernández, A. Oropeza
In this work a parallel manipulator (Stewart platform) is used to align and maintain the position of the secondary mirror of a radio-telescope. The six degree of freedom platform gives the significant advantage to reach the maximum performance for the positioning task. This system uses six lineal actuators with changeable lengths to obtain the desired position. The filtered version of sliding mode algorithm is used to control and orient the system in presence of unmodelled dynamics and perturbations. It provides chattering effect reduction and improving of the performance of the system.
{"title":"Orientation of radio-telescope secondary mirror via parallel platform","authors":"S. Keshtkar, A. Poznyak, Eusebio E. Hernández, A. Oropeza","doi":"10.1109/ICEEE.2015.7357899","DOIUrl":"https://doi.org/10.1109/ICEEE.2015.7357899","url":null,"abstract":"In this work a parallel manipulator (Stewart platform) is used to align and maintain the position of the secondary mirror of a radio-telescope. The six degree of freedom platform gives the significant advantage to reach the maximum performance for the positioning task. This system uses six lineal actuators with changeable lengths to obtain the desired position. The filtered version of sliding mode algorithm is used to control and orient the system in presence of unmodelled dynamics and perturbations. It provides chattering effect reduction and improving of the performance of the system.","PeriodicalId":285783,"journal":{"name":"2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124133328","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：