Pub Date : 2015-07-20DOI: 10.1109/CCDC.2015.7161792
Huiyan Li, Chen Liu, Jiang Wang
A novel closed-loop control strategy of deep brain stimulation is explored in this paper. By establishing an input-output model of the basal ganglia, the causality between the external stimuli and neuronal activities can be revealed. One-step ahead prediction constructs the probable future information of the tracking errors, which is used to guide the amplitude of the current pulse train stimuli. By comparing the traditional and iterative learning proportional control algorithms, the latter control strategy not only automatically can optimize the control signals without requirements of any particular knowledge on the details of model, but also can reduce the energy expenditure of the stimuli by accelerating the control process. This work may point to the potential value of model-based design of closed-loop controllers and pave the way towards the optimization of deep brain stimulation parameters and structures for Parkinson's disease.
{"title":"Design of the feedback controller for deep brain stimulation of the parkinsonian state based on the system identification","authors":"Huiyan Li, Chen Liu, Jiang Wang","doi":"10.1109/CCDC.2015.7161792","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7161792","url":null,"abstract":"A novel closed-loop control strategy of deep brain stimulation is explored in this paper. By establishing an input-output model of the basal ganglia, the causality between the external stimuli and neuronal activities can be revealed. One-step ahead prediction constructs the probable future information of the tracking errors, which is used to guide the amplitude of the current pulse train stimuli. By comparing the traditional and iterative learning proportional control algorithms, the latter control strategy not only automatically can optimize the control signals without requirements of any particular knowledge on the details of model, but also can reduce the energy expenditure of the stimuli by accelerating the control process. This work may point to the potential value of model-based design of closed-loop controllers and pave the way towards the optimization of deep brain stimulation parameters and structures for Parkinson's disease.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129057176","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7161692
B. Zhu, A. Liu, Y. Gu, Qingling Zhang
The finite-time H∞ performance analysis problems are investigated for T-S descriptor systems in this paper. The sufficient conditions are proposed such that the system is finite-time bounded and impulse free and satisfies a prescribed H∞ norm bound. The obtained method is the ability to eliminate the impulsive behavior of descriptor systems so as to guarantee the existence and uniqueness of solutions. A positive matrix is constructed to overcome the difficulties which will result in an infeasible linear matrix inequality (LMI). By combining the FEASP solver with GEVP solver of the LMI toolbox, we perform simulations to validate the obtained methods for a nonlinear descriptor system via the T-S fuzzy model. It shows the application of the T-S fuzzy method in studying finite-time H∞ performance analysis problems for a kind of nonlinear descriptor systems.
{"title":"Finite-time H∞ performance analysis for a kind of T-S fuzzy descriptor system with time-delay","authors":"B. Zhu, A. Liu, Y. Gu, Qingling Zhang","doi":"10.1109/CCDC.2015.7161692","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7161692","url":null,"abstract":"The finite-time H∞ performance analysis problems are investigated for T-S descriptor systems in this paper. The sufficient conditions are proposed such that the system is finite-time bounded and impulse free and satisfies a prescribed H∞ norm bound. The obtained method is the ability to eliminate the impulsive behavior of descriptor systems so as to guarantee the existence and uniqueness of solutions. A positive matrix is constructed to overcome the difficulties which will result in an infeasible linear matrix inequality (LMI). By combining the FEASP solver with GEVP solver of the LMI toolbox, we perform simulations to validate the obtained methods for a nonlinear descriptor system via the T-S fuzzy model. It shows the application of the T-S fuzzy method in studying finite-time H∞ performance analysis problems for a kind of nonlinear descriptor systems.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130702567","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7162534
Liu Feng, Yao Yu, Zhao Hui
Compare with single gimbal control moment gyroscope, the variable flywheel speed of variable speed control moment gyroscope can be changed and easily realized, which have the ability of singular escaping. The flywheel acceleration and singularity problem are close connect with each other. In this paper, the flywheel acceleration index evaluation problem is solved with null motion to escaping the singular point. The mechanism of singular escaping is analyzed, and the process of singular escaping is revealed. The new null motion steering method is proposed, which is perpendicular to the gradient direction of null motion. The reasonable trajectory of gimbal position is planned. The optimal method is given to distribute the flywheel acceleration index with maximum escaping ability. The flywheel acceleration index assessment method is solved. The theory analysis result is foundation for the VSCMGs system optimization design.
{"title":"The research on flywheel acceleration assessment with null motion escaping singularity for variable speed control moment gyros","authors":"Liu Feng, Yao Yu, Zhao Hui","doi":"10.1109/CCDC.2015.7162534","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7162534","url":null,"abstract":"Compare with single gimbal control moment gyroscope, the variable flywheel speed of variable speed control moment gyroscope can be changed and easily realized, which have the ability of singular escaping. The flywheel acceleration and singularity problem are close connect with each other. In this paper, the flywheel acceleration index evaluation problem is solved with null motion to escaping the singular point. The mechanism of singular escaping is analyzed, and the process of singular escaping is revealed. The new null motion steering method is proposed, which is perpendicular to the gradient direction of null motion. The reasonable trajectory of gimbal position is planned. The optimal method is given to distribute the flywheel acceleration index with maximum escaping ability. The flywheel acceleration index assessment method is solved. The theory analysis result is foundation for the VSCMGs system optimization design.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114413594","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7161850
Jiehong Wu, Feng Lv, Yuqi Cao, Ziheng Zhao
In recent years, along with the further study in incomplete information chess-military chess. How to express and address the incomplete information during the process of game, deciding certain moves strategies to obtain higher winning rate increasingly become a new issue. An approach using digit to express incomplete information in military chess is proposed in this paper, a model based on guessing probability to address incomplete information in military chess game is designed, and the programming process is provided. In the National Computer Games Tournament, the game program using this model is stronger than the others. Results are shown as 6 wins, 1 draw, and 1 lost. The average time of each moving step is shorter than opponent 2 second.
{"title":"Design and implementation of chess roles guess probability in military chess computer game","authors":"Jiehong Wu, Feng Lv, Yuqi Cao, Ziheng Zhao","doi":"10.1109/CCDC.2015.7161850","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7161850","url":null,"abstract":"In recent years, along with the further study in incomplete information chess-military chess. How to express and address the incomplete information during the process of game, deciding certain moves strategies to obtain higher winning rate increasingly become a new issue. An approach using digit to express incomplete information in military chess is proposed in this paper, a model based on guessing probability to address incomplete information in military chess game is designed, and the programming process is provided. In the National Computer Games Tournament, the game program using this model is stronger than the others. Results are shown as 6 wins, 1 draw, and 1 lost. The average time of each moving step is shorter than opponent 2 second.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128950020","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7162371
Xinjiang Wei, Huifeng Zhang, Zhenkai Guo, Meiqin Tang, Xiaohua Liu
This paper proposes a new elegant anti-disturbance control strategy for a class of discrete-time stochastic systems subject to two kinds of disturbances. One represents the disturbance with partially-known information. The other is external random environmental disturbances. The stochastic disturbance observers can be constructed separately from the controller design to estimate the first kind of disturbance. Based on stochastic disturbance observer, a novel elegant anti-disturbance control scheme is proposed to improve the ability of anti-disturbance for discrete-time stochastic systems with known and unknown nonlinear dynamics, respectively. A simulation example is given to demonstrate the effectiveness of the proposed method compared with the previous schemes.
{"title":"Elegant anti-disturbance control for uncertain discrete-time stochastic systems","authors":"Xinjiang Wei, Huifeng Zhang, Zhenkai Guo, Meiqin Tang, Xiaohua Liu","doi":"10.1109/CCDC.2015.7162371","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7162371","url":null,"abstract":"This paper proposes a new elegant anti-disturbance control strategy for a class of discrete-time stochastic systems subject to two kinds of disturbances. One represents the disturbance with partially-known information. The other is external random environmental disturbances. The stochastic disturbance observers can be constructed separately from the controller design to estimate the first kind of disturbance. Based on stochastic disturbance observer, a novel elegant anti-disturbance control scheme is proposed to improve the ability of anti-disturbance for discrete-time stochastic systems with known and unknown nonlinear dynamics, respectively. A simulation example is given to demonstrate the effectiveness of the proposed method compared with the previous schemes.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122245416","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7162646
Xiaoyong Liu, H. Fang
Accurate multi-step-ahead prediction over long future horizons posts great challenges for the application of time series prediction. A novel online multi-step-ahead prediction method based on least squares support vector regression (LSSVR) is proposed in this paper. Taken the superiorities of using sliding-windows to reduce largely computation burden and implementing LSSVR model updating by Unscented Kalman Filter (UKF) into consideration, the proposed method not only can construct online predicted model in much fewer training data (such as the size of original training data set required is only the sum of embedding dimension corresponding to phase-space-reconstruction and the length of sliding-windows), but also has the better accuracy over multi-step-ahead prediction. When the prediction horizon reached the predefined step p in the process of predicting, model parameters consisted of kernel width σ, support values {αk}k=1L and bias term b are updated by new arrived measurements and UKF. Finally, several simulations are provided to show the validity and applicability of the proposed method.
{"title":"Online multi-step-ahead time series prediction based on LSSVR using UKF with sliding-windows","authors":"Xiaoyong Liu, H. Fang","doi":"10.1109/CCDC.2015.7162646","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7162646","url":null,"abstract":"Accurate multi-step-ahead prediction over long future horizons posts great challenges for the application of time series prediction. A novel online multi-step-ahead prediction method based on least squares support vector regression (LSSVR) is proposed in this paper. Taken the superiorities of using sliding-windows to reduce largely computation burden and implementing LSSVR model updating by Unscented Kalman Filter (UKF) into consideration, the proposed method not only can construct online predicted model in much fewer training data (such as the size of original training data set required is only the sum of embedding dimension corresponding to phase-space-reconstruction and the length of sliding-windows), but also has the better accuracy over multi-step-ahead prediction. When the prediction horizon reached the predefined step p in the process of predicting, model parameters consisted of kernel width σ, support values {αk}k=1L and bias term b are updated by new arrived measurements and UKF. Finally, several simulations are provided to show the validity and applicability of the proposed method.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131547076","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7161720
Hao Hu, B. Jiang, Hao Yang
This paper concentrates the reliable stabilization problem for a class of delta operator switched linear systems, in terms of mode-dependent average dwell time (MDADT) approach. Firstly, based on MDADT approach, asymptotical and exponential stability of delta operator nonlinear switched systems is analyzed. Then, the reliable controller and the minimum MDADT are designed to stabilize the considered delta operator linear switched system with actuator faults. A flight control switched system is given to show the validity and potential of the proposed method.
{"title":"Reliable stabilization of delta operator switched linear systems with mode-dependent average dwell time","authors":"Hao Hu, B. Jiang, Hao Yang","doi":"10.1109/CCDC.2015.7161720","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7161720","url":null,"abstract":"This paper concentrates the reliable stabilization problem for a class of delta operator switched linear systems, in terms of mode-dependent average dwell time (MDADT) approach. Firstly, based on MDADT approach, asymptotical and exponential stability of delta operator nonlinear switched systems is analyzed. Then, the reliable controller and the minimum MDADT are designed to stabilize the considered delta operator linear switched system with actuator faults. A flight control switched system is given to show the validity and potential of the proposed method.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127974496","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7162285
B. Tang, Jiali Qin, Yun Zhang
This paper is concerned with fuzzy-model-based stabilization of nonlinear packetized networked control systems (NCSs) with time-varying transmission delays and transmission intervals based on a delay-distribution approach. The real-time distribution of input delays is modeled as a dependent and nonidentically distributed process. A randomly switched Takagi-Sugeno fuzzy system with multiple input-delay subsystems is proposed to model the nonlinear packetized NCSs. Based on an improved Lyapunov-Krasovskii method, new delay-distribution-dependent sufficient conditions are derived for the deterministic asymptotical stability of the overall systems. The resulting controller design method can be formulated as an iterative linear optimization algorithm with LMI constraints. Numerical examples are presented to substantiate the advantage of our results.
{"title":"Fuzzy-model-based stabilization of nonlinear packetized networked control systems","authors":"B. Tang, Jiali Qin, Yun Zhang","doi":"10.1109/CCDC.2015.7162285","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7162285","url":null,"abstract":"This paper is concerned with fuzzy-model-based stabilization of nonlinear packetized networked control systems (NCSs) with time-varying transmission delays and transmission intervals based on a delay-distribution approach. The real-time distribution of input delays is modeled as a dependent and nonidentically distributed process. A randomly switched Takagi-Sugeno fuzzy system with multiple input-delay subsystems is proposed to model the nonlinear packetized NCSs. Based on an improved Lyapunov-Krasovskii method, new delay-distribution-dependent sufficient conditions are derived for the deterministic asymptotical stability of the overall systems. The resulting controller design method can be formulated as an iterative linear optimization algorithm with LMI constraints. Numerical examples are presented to substantiate the advantage of our results.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115155925","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7161927
Yuan Huizheng, Gao Bo, Lu Junqing, L. Xingshan, Ge Zhonghao
An ideal way to achieve high precision of I-FOG is to enhance Sagnac effect. Lengthing the fiber and enlarging the diameter of fiber coil are the major two methods. However, they bring sharp decrease on the dynamic range of I-FOG. An algorithm attempting to make the I-FOG dynamically start and work on higher interference fringe is presented and designed. The experiment platform to verify the algorithm is also established. Experiment results show that the dynamic range of I-FOG is successfully enlarged from Ω-π ~ Ωπ to Ω-7π ~ Ω7π. The bias and scalar factor test show that the dynamic-range-extended I-FOG is at the same precision as the original I-FOG. The dynamic start experiment also shows a further evidence to prove the correctness and reliable of the dynamic-range-extended algorithm.
{"title":"Design and implementation of I-FOG with wide start dynamic range","authors":"Yuan Huizheng, Gao Bo, Lu Junqing, L. Xingshan, Ge Zhonghao","doi":"10.1109/CCDC.2015.7161927","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7161927","url":null,"abstract":"An ideal way to achieve high precision of I-FOG is to enhance Sagnac effect. Lengthing the fiber and enlarging the diameter of fiber coil are the major two methods. However, they bring sharp decrease on the dynamic range of I-FOG. An algorithm attempting to make the I-FOG dynamically start and work on higher interference fringe is presented and designed. The experiment platform to verify the algorithm is also established. Experiment results show that the dynamic range of I-FOG is successfully enlarged from Ω<sub>-π</sub> ~ Ω<sub>π</sub> to Ω<sub>-7π</sub> ~ Ω<sub>7π</sub>. The bias and scalar factor test show that the dynamic-range-extended I-FOG is at the same precision as the original I-FOG. The dynamic start experiment also shows a further evidence to prove the correctness and reliable of the dynamic-range-extended algorithm.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116529517","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 : 2015-07-20DOI: 10.1109/CCDC.2015.7162836
Wang Li, Z. Tao, Dingnai Xiu
A solar fresh air heating system with phase change thermal storage was introduced in this paper as an environmental protection energy saving method, and the mathematical model of the air conditioning room was derived based on law of thermodynamics. The fresh air temperature control problem was also addressed, and self-tuning parameter fuzzy PID controller was proposed for disturbance rejection due to the time delay problem and parameter variations, which was designed to regulate the flow rate to control the fresh air temperature. The controller presented is then validated, through simulation and experiment, to provide superior control performance with higher control accuracy, faster response and stronger robustness to a conventional PID controller.
{"title":"Modeling and optimized control algorithm for a solar fresh air heating system","authors":"Wang Li, Z. Tao, Dingnai Xiu","doi":"10.1109/CCDC.2015.7162836","DOIUrl":"https://doi.org/10.1109/CCDC.2015.7162836","url":null,"abstract":"A solar fresh air heating system with phase change thermal storage was introduced in this paper as an environmental protection energy saving method, and the mathematical model of the air conditioning room was derived based on law of thermodynamics. The fresh air temperature control problem was also addressed, and self-tuning parameter fuzzy PID controller was proposed for disturbance rejection due to the time delay problem and parameter variations, which was designed to regulate the flow rate to control the fresh air temperature. The controller presented is then validated, through simulation and experiment, to provide superior control performance with higher control accuracy, faster response and stronger robustness to a conventional PID controller.","PeriodicalId":273292,"journal":{"name":"The 27th Chinese Control and Decision Conference (2015 CCDC)","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121254688","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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