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2015 19th International Conference on System Theory, Control and Computing (ICSTCC)最新文献

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Fuzzy control of an anaerobic digestion process 厌氧消化过程的模糊控制
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321271
R. Precup, Claudia-Adina Bojan-Dragos, M. Barbu, S. Caraman
{"title":"Fuzzy control of an anaerobic digestion process","authors":"R. Precup, Claudia-Adina Bojan-Dragos, M. Barbu, S. Caraman","doi":"10.1109/ICSTCC.2015.7321271","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321271","url":null,"abstract":"The paper proposes a simple Takagi-Sugeno PI-fuzzy controller for an anaerobic digestion process. A fifth order nonlinear model of the anaerobic digestion process is first presented. A second order linear model of the process is next proposed, and the parameters of the linear model are obtained from an optimization problem solved by a Gravitational Search Algorithm. A PI controller is designed for the linear process model using a frequency domain approach in terms of imposing the phase margin. The Takagi-Sugeno PI-fuzzy controller is designed on the basis of the linear PI controller. The Takagi-Sugeno PI-fuzzy controller is validated by simulation using the nonlinear process model in the fuzzy control system.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128264855","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}
引用次数: 1
GPU accelerated information retrieval using Bloom filters GPU加速信息检索使用布隆过滤器
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321404
Alexandru Iacob, L. Itu, L. Sasu, F. Moldoveanu, C. Suciu
{"title":"GPU accelerated information retrieval using Bloom filters","authors":"Alexandru Iacob, L. Itu, L. Sasu, F. Moldoveanu, C. Suciu","doi":"10.1109/ICSTCC.2015.7321404","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321404","url":null,"abstract":"Information retrieval is a technique used in search engines, advertisement placement and cognitive databases. With increasing amounts of data and stringent response time requirements, improving the underlying implementation of document retrieval becomes critical. To this end, we consider a Bloom filter, a simple randomized data structure that answers membership queries with no false negative and customizable false positive probability. Mainly, we focus on the speed-up of the algorithm by using a Graphics Processing Units (GPU) based implementation. Starting from a regular CPU implementation of the Bloom filter algorithm, we employ different optimization techniques on the two basic Bloom filter operations: mapping and querying. An important speed-up is achieved for both operations: over 300x for mapping, and over 20x for querying. Furthermore, we show that the number of hash functions used during the mapping operation, the number of files, and the number of query words have a significant effect on the execution time and the speed-up.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124541881","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}
引用次数: 10
Adaptive fuzzy synergetic control of nonlinear systems with unknown backlash-like hysteresis 具有未知类逆激滞的非线性系统的自适应模糊协同控制
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321295
A. Rebai, Kamel GUESMI, D. Gozim, B. Hemici
{"title":"Adaptive fuzzy synergetic control of nonlinear systems with unknown backlash-like hysteresis","authors":"A. Rebai, Kamel GUESMI, D. Gozim, B. Hemici","doi":"10.1109/ICSTCC.2015.7321295","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321295","url":null,"abstract":"The hysteresis non-linearity exists in many physical systems and materials, such as electrical and mechanical actuators, ferromagnetic and ferroelectric materials. However, this property makes the analysis and control of such systems and devices difficult. In order to control this property, a new Adaptive fuzzy synergetic control strategy is proposed in this paper. Indeed, to highlight the problem, the hysteresis behavior of the system is described using a backlash-like model. Then a synergetic control scheme is proposed to deal with the problem of controlling non-linear hysteretic systems. It's formed of a fuzzy system to approximate the unknown system dynamics with an adaptive synergetic controller to achieve the desired performances. The proposed approach is validated through simulation along with its satisfactory performances.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124878454","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}
引用次数: 4
Implementable fast augmented Lagrangian optimization algorithm with application in embedded MPC 可实现的快速增广拉格朗日优化算法及其在嵌入式MPC中的应用
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321360
A. Pătraşcu, I. Necoara, M. Barbu, S. Caraman
{"title":"Implementable fast augmented Lagrangian optimization algorithm with application in embedded MPC","authors":"A. Pătraşcu, I. Necoara, M. Barbu, S. Caraman","doi":"10.1109/ICSTCC.2015.7321360","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321360","url":null,"abstract":"In this paper we present an adaptive variant of a fast augmented Lagrangian method for solving linearly constrained convex optimization problems arising e.g. in model predictive control for embedded linear systems. Mainly, our method relies on the combination of the excessive-gap-like smoothing technique and the inexact oracle framework, which have been presented in details in [13]. We briefly present the total computational complexity results, in particular we derive an overall computational complexity of order O (1 over ε) projections onto a primal set in order to obtain an ε-optimal solution for our original problem. Moreover, our adaptive variant of fast augmented Lagrangian method is implementable, i.e. it is based on computable stopping criteria and with computational complexity certificates. This makes it suitable for applications to embedded control where we need tight estimates on the computational complexity of the corresponding numerical algorithm.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124136775","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}
引用次数: 1
Design and modeling of an upper limb exoskeleton 上肢外骨骼的设计与建模
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321304
Yetzi Rosales, R. López, I. Rosales, S. Salazar, Rogelio Lozano
{"title":"Design and modeling of an upper limb exoskeleton","authors":"Yetzi Rosales, R. López, I. Rosales, S. Salazar, Rogelio Lozano","doi":"10.1109/ICSTCC.2015.7321304","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321304","url":null,"abstract":"This paper presents the mechanical design, kinematic matrices, achievable workspace and dynamic model of an upper limb exoskeleton. This project aims to rehabilitate individuals that have suffered injuries at their upper limb, by creating a wearable exoskeleton which provides a large workspace.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133631732","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}
引用次数: 7
Tactile controller using fuzzy logic for robot inhand manipulation 采用模糊逻辑的触觉控制器实现机器人的手部操作
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321332
Vlad Ciobanu, N. Popescu
{"title":"Tactile controller using fuzzy logic for robot inhand manipulation","authors":"Vlad Ciobanu, N. Popescu","doi":"10.1109/ICSTCC.2015.7321332","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321332","url":null,"abstract":"Autonomous manipulation is one the the most complex fields of humanoid robotics research, because it involves several domains such as: object recognition, object tracking, manipulator positioning, grasping, etc. In this paper a tactile controller based on fuzzy logic is proposed, capable of complex inhand manipulation tasks. This fuzzy logic approach assures finger motion smoothness by dealing with sensor nonlinearities and uncertainties, thus reducing the need of knowing the object dimensions or exact position in relation to the robot hand.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128314796","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}
引用次数: 3
Optimal PID controller design based on Particle Swarm Optimization for bacterial growth bioprocess 基于粒子群优化的细菌生长生物过程最优PID控制器设计
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321299
D. Sendrescu, E. Petre, E. Bobaşu
{"title":"Optimal PID controller design based on Particle Swarm Optimization for bacterial growth bioprocess","authors":"D. Sendrescu, E. Petre, E. Bobaşu","doi":"10.1109/ICSTCC.2015.7321299","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321299","url":null,"abstract":"Particle Swarm Optimization represents a heuristic approach that can be used to solve difficult optimization problems. With some relative few modifications this method can be applied to a specific problem. In this work an optimal PID control algorithm for a bacterial growth bioprocess associated with enzymatic catalysis is designed and analyzed. The controller parameters are calibrated using particle swarm optimization algorithms by the minimization of an objective function. The controller tuning problem is approached as a multi-modal numerical optimization problem. Numerical simulations are included to validate the designed controllers. Two nonlinear kinetic expressions - the Monod and Haldane equations - frequently used to define microbial growth, are tested in the model simulations.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132021679","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}
引用次数: 0
Tracking performance evaluation in presence of hard nonlinearities for oscillatory antenna control 存在硬非线性的振荡天线控制跟踪性能评价
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321321
C. Ionescu, Amélie Chevalier, C. Copot, R. D. De Keyser
{"title":"Tracking performance evaluation in presence of hard nonlinearities for oscillatory antenna control","authors":"C. Ionescu, Amélie Chevalier, C. Copot, R. D. De Keyser","doi":"10.1109/ICSTCC.2015.7321321","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321321","url":null,"abstract":"In this paper, closed loop performance of a system with hard nonlinear limitations is analyzed. In order to adequately control such a challenging process, an Internal Model Control strategy has been implemented. The controller has been applied to a real time process described by a radio satellite antenna. The performance of the closed loop has been evaluated by changing the natural frequency and the damping factor of the process transfer function. The experimental results show that the designed IMC controller is robust to changes in the natural frequency between [-5%, +20%] and to changes in the damping factor between [-50%,+100%]. The performance has also been tested for various resolution steps in the actuator (i.e. a stepper motor).","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132144702","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}
引用次数: 0
On assisting domain and not null constraint management with DBDetective 2.0 for Oracle DBDetective 2.0 for Oracle辅助域约束和非空约束管理
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321399
Christian Mancas, A. Dicu
{"title":"On assisting domain and not null constraint management with DBDetective 2.0 for Oracle","authors":"Christian Mancas, A. Dicu","doi":"10.1109/ICSTCC.2015.7321399","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321399","url":null,"abstract":"DBDetective for Oracle is a metadata mining tool for detecting and correcting possible violations of some crucial database (db) design, implementation, usage, and optimization best practice rules (bprs); its 1.0 version considers two bprs related to domain and not null constraints, but does not allow storing corresponding decision data for them: as, for example, investigated db current instances may not be typical for all tables, db architects might not validate DBDetective findings and /or even force db scheme changing, although DBDetective did not recommend them. Its 2.0 version considers other bprs, out of which three related to domain constraints, provides storing decision data for all of them, as well as mechanisms for automatic generation of corresponding db scheme enhancement PL/SQL scripts, based on these decisions. This paper presents only those related to not null and domain constraints. Any advanced RDBMS should include these facilities too.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134577188","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}
引用次数: 0
Super twisting sliding mode controller applied to a nonholonomic mobile robot 应用于非完整移动机器人的超扭滑模控制器
2015 19th International Conference on System Theory, Control and Computing (ICSTCC) Pub Date : 2015-11-09 DOI: 10.1109/ICSTCC.2015.7321274
R. Șolea, D. Cernega
{"title":"Super twisting sliding mode controller applied to a nonholonomic mobile robot","authors":"R. Șolea, D. Cernega","doi":"10.1109/ICSTCC.2015.7321274","DOIUrl":"https://doi.org/10.1109/ICSTCC.2015.7321274","url":null,"abstract":"In this paper, a new approach of the super twisting sliding mode control of nonholonomic mobile robot system is proposed. Computer simulations and real time implementations are performed on a real mobile robot (Pioneer-3DX) with parameter uncertainties and external disturbances. The simulation results and real experiments have shown the improved performance of the proposed controller in terms of a decrease in the reaching and settling times and robustness to disturbances as compared to the conventional sliding mode controller. Moreover, the proposed sliding-mode controller is very simple and easy to implement in real nonholonomic mobile robot.","PeriodicalId":257135,"journal":{"name":"2015 19th International Conference on System Theory, Control and Computing (ICSTCC)","volume":"501 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123890654","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}
引用次数: 12
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