{"title":"Optimised robust placement of hard quality sensors for robust monitoring of quality in Drinking Water Distribution Systems","authors":"R. Langowski, M. Brdys, Ruiyun Qi","doi":"10.1109/WCICA.2012.6358046","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6358046","url":null,"abstract":"A problem of optimised robust placement of the hard quality sensors in Drinking Water Distribution Systems under several water demand scenarios for robust quality monitoring is formulated. Numerical algorithms to solve the problem are derived. The optimality is meant as achieving at the same time a desired trade off between the sensor capital and maintenance costs and resulting robust estimation accuracy of the monitoring algorithm for several water demand scenarios insuring robustness with respect to the demand uncertainty. The robust estimation algorithm recently developed by the authors is applied as a soft quality in design of the sensor placement algorithms. The method and algorithm are validated by application to Chojnice DWDS case study.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128996790","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}
{"title":"A fuzzy-model-based gravity center adjustment and inclination control for stair-climbing wheelchair","authors":"Dongxiao Wang, Xueshan Gao, X. Duan, Weimin Zhang, Qiang Huang, Yunhui Liu","doi":"10.1109/WCICA.2012.6359100","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6359100","url":null,"abstract":"Balance control is a critical step to ensure tip-over stability for stair-climbing wheelchair. This paper presents a novel fuzzy method for adjusting the gravity center and controlling inclination of a stair-climbing wheelchair. The proposed fuzzy controller is designed based the kinematic relationship between the position of the gravity centre and the obliquity of the wheelchair in obstacle environments. It optimally compensates for changing of the gravity centre by adjusting obliquity of the wheelchair using a pair of actuators. To validate the proposed method, we have carried out simulations and experiments. The results demonstrate that the proposed method can efficiently compensate for changing of the gravity center to prevent the overturn.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129256054","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}
{"title":"Adaptive digitally controlled flyback converter based on current and phase margin estimation","authors":"Youchen Yuan, Zhiwei Shao","doi":"10.1109/WCICA.2012.6359033","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6359033","url":null,"abstract":"This paper introduces design and implementation of a digital controller for an experimental low-power flyback converter in a solar-powered system with power management. Multiple operating modes are used to maintain high efficiency over wide range of input voltage and load. A current, crossover frequency and phase margin estimation technique to perform load-dependent mode switching and control system stability is proposed and tested. An adaptive tuning digital PID regulator design example is described, with emphasis on practical limitations imposed by the LM3S1138 controller and the program of arithmetic due to sampling and processing. The MIMO loop adaptively adjusts the regulator parameters to minimize the error between the desired and estimated crossover frequency and phase margin. Small-signal models are derived, and the MIMO control loop is designed to achieve stability and performance over a wide range of operating conditions. Experimental results of demonstrating system functionality are presented for a flyback converter.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129473432","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}
{"title":"Optimal control in molecular-level gene manipulation","authors":"Juanyi Yu, Jr-Shin Li","doi":"10.1109/WCICA.2012.6359422","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6359422","url":null,"abstract":"The sequential information stored in DNA determines the appearance and inheritance of different life forms and individuals. Precision control of DNA sequences at the molecular level is crucial to maintain the fidelity of genes and to ensure the accuracy of gene expression. In this paper, we propose state-space control models at the molecular level by converting character-based DNA sequences into state vectors and incorporating on/off controls for mutagens into DNA replication systems in different scales. Subsequently, we compute the optimal control sequence for minimizing the risk of applying mutagens and the off-trajectory penalty using dynamic programming algorithm. By the brute force method and simulation results, we conclude that the global optimum can always be achieved within a finite number of steps of deterministic DNA replication systems. The upper limit of steps to reach the global optimum depends on the length of the DNA sequence.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126700469","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}
{"title":"Robot aided object segmentation without prior knowledge","authors":"Kun Li, M. Meng, Xijun Chen","doi":"10.1109/WCICA.2012.6359387","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6359387","url":null,"abstract":"In robot perception system, distinguishing objects from complex environment is a difficult problem if without prior information. In this article, we study three cases that a robot may encounter in real-world application, no movable object, one object, or multiple objects, and then provide an object segmentation strategy through manipulation for each condition. The result shows that this method can provide sufficient prior information for accurate objects segmentation from robot's observation. Through this unsupervised algorithm, a robot can learn objects around reliably.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126985080","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}
{"title":"Adaptive integral-type sliding mode control for a class of uncertain nonlinear systems","authors":"Li-ying Sun","doi":"10.1109/WCICA.2012.6358219","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6358219","url":null,"abstract":"An integral-type sliding mode control method for a class of uncertain nonlinear systems in parameter feedback form is developed. The design procedure can be divided into two steps. Firstly, design a nonlinear integral-type sliding manifold for the uncertain system such that not only the sliding motion can occur on that manifold, but also the system's motion along the manifold is asymptotically stable. The integral-type sliding surface is constructed by adding an integral term into the linear sliding surface. The additional integral in the proposed sliding surface provides one more degree of freedom; Secondly, based on the Lyapunov stability theorem, design a control law, such that the system's states are driven towards the manifold and stay there for all future time, regardless of uncertainties.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123216908","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}
{"title":"An approach to rainfall simulator automation and performance evaluation","authors":"Jun Cai, Pingkang Li, Peng Wang","doi":"10.1109/WCICA.2012.6359040","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6359040","url":null,"abstract":"A computer-PLC (Programmable Logic Controller) control solution was proposed for the artificial trough rainfall simulator. The rainfall process with continuous changing intensities was simulated automatically with the control strategy. Frequency-tunable pulse signal of specified duty ratio was generated precisely using pulse module of PLC to drive nozzles oscillating at required frequency. Thus, arbitrary rainfall intensities within the output range of the simulator were achieved. Control configuration for trough rainfall simulator was built using Forcecontrol man-machine software. Parameters settings and rainfall intensities tracking during the rainfall simulation were realized. Simultaneously, a rainfall simulator performance evaluation procedure was performed based on a single nozzle rainfall test with six selected working states. A criterion of dynamic rainfall uniformity was proposed to estimate the performance of a rainfall simulator during the entire rainfall simulation. A Locally weighted scatterplot smoothing (LOESS) and weighted averaging approach was adopted in the evaluation procedure.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123378518","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}
{"title":"A robust adaptive control for trajectory tracking of underactuated surface ships","authors":"Yang Liu, Chen Guo","doi":"10.1109/WCICA.2012.6358098","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6358098","url":null,"abstract":"We proposed a robust adaptive control method for trajectory tracking of underactuated surface ship with parameters uncertainties and disturbances. Based on the diffeomorphism transformation, the new tracking variables are given. In kinematics loop, we design the reference yaw angle and the reference speed. The nonlinear adaptive controller is designed in dynamics loop to asymptotically approach to the desired variables. The stability of the closed-loop system is analyzed by using Lyapunov theory. Simulation results illustrate the effectiveness of the proposed control method.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114075266","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}
{"title":"Output feedback organically-structured control of expanded power system based on parameter optimization","authors":"Xiaohua Li, Yanying Xu","doi":"10.1109/WCICA.2012.6358220","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6358220","url":null,"abstract":"A new optimized organically-structured control method combined with the dynamic output feedback and genetic algorithm is proposed for automatic generation control (AGC) design of interconnected power system with the extension structure. Genetic algorithm is used to optimize the related parameters emerged in the process to solve the controller based on the dynamic output feedback control of the system with the extension structure. The blindness to choose the parameters is avoided. The fitness function evaluating synthetically the time domain response performance is chosen, and the constraint matrix is optimized in the design. The simulation research is done against a kind of interconnected power system model. Consider a new area subsystem is add to original system on line, the automatic generation control law of the new area is designed by using the proposed method. The simulation results show that the control performances optimized by genetic algorithm are better than the before, and the effectiveness of this method is proved.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114219201","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}
{"title":"Key technology of network monitoring and early warning system for wharf mooring","authors":"Zhanzhi Qiu, Lei Sun, Yongchao Liu","doi":"10.1109/WCICA.2012.6358449","DOIUrl":"https://doi.org/10.1109/WCICA.2012.6358449","url":null,"abstract":"Aiming at the needs of domestic large-scale open-wharf ship mooring, design solution etc. key technology about network monitoring and early warning system for wharf mooring are studied. Network monitoring solutions, system architecture, monitoring data collection, data transmission method and distributed data storage technology are described. Through the comprehensive use of DB technology, Web technology and software engineering technology, the mooring control system achieves network monitor and predict warning, and provides a basic guarantee of the security mooring and efficient decision.","PeriodicalId":114901,"journal":{"name":"Proceedings of the 10th World Congress on Intelligent Control and Automation","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116206501","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}