{"title":"Selective compliance control for an unmanned aerial vehicle with a robotic arm","authors":"G. Giglio, F. Pierri","doi":"10.1109/MED.2014.6961537","DOIUrl":"https://doi.org/10.1109/MED.2014.6961537","url":null,"abstract":"This paper proposes a compliant control scheme for a quadrotor helicopter equipped with an n-DOFs manipulator. The proposed control scheme is characterized by three layers: the first layer includes a motion planner, which, on the basis of desired trajectory for the end-effector, determines the desired motion for the actuated variables (joint positions, quadrotor position and yaw angle). The second layer, thanks to an impedance filter, provides a selective compliant behavior to the system, in the presence of interaction of the manipulator end-effector with the environment. Finally, the third layer implements a motion controller aimed at tracking the references output by the previous layer. The effectiveness of the proposed approach is tested in simulation.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130991124","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}
P. Bajaria, Abhishek Pandey, A. Yerudkar, F. Kazi, Navdeep M. Singh
{"title":"LMI based loop shaping control of biological circuits","authors":"P. Bajaria, Abhishek Pandey, A. Yerudkar, F. Kazi, Navdeep M. Singh","doi":"10.1109/MED.2014.6961550","DOIUrl":"https://doi.org/10.1109/MED.2014.6961550","url":null,"abstract":"Over the past few decades there has been a lot of work in the field of synthetic biology, in order to understand the underlying concepts and cast them as a problem in chemistry, mathematics or engineering. Moulding it into control engineering, the majority of the problems arise, either due to synthesizability of the designed controller (as a Biological unit) or tackling robustness in a multi-network, to achieve the desired specifications. In this paper, we stress on how a biologically synthesizable robust controller could be designed using a novel approach of Linear Matrix Inequality (LMI) based loop shaping.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131584323","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":"Robust H∞ fault detection for fuzzy bilinear systems via unknown input observer","authors":"D. Saoudi, M. Chadli, Naceur Benhadj Braeik","doi":"10.1109/MED.2014.6961384","DOIUrl":"https://doi.org/10.1109/MED.2014.6961384","url":null,"abstract":"In this paper, a new method to design a fault diagnosis based on a Fuzzy Bilinear Observer (FBO) for nonlinear systems is proposed. The nonlinear system is modeled as a Fuzzy Bilinear Model (FBM). Sufficient conditions are established in order to maximize the fault sensitivity and perturbation robustness of the residual generator. These conditions are given in Linear Matrix Inequality (LMI) terms. A numerical example is given to illustrate the effectiveness of the given results.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132370387","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":"Monitoring of seagrass by lightweight AUV: A Posidonia oceanica case study surrounding Murter island of Croatia","authors":"A. Vasilijevic, N. Mišković, Z. Vukic, F. Mandic","doi":"10.1109/MED.2014.6961465","DOIUrl":"https://doi.org/10.1109/MED.2014.6961465","url":null,"abstract":"Posidonia oceanica (Neptune Grass) is an endemic species to the Mediterranean Sea. It forms dense and extensive green underwater meadows which provide important ecological functions and services and harbour highly diverse communities; as such it is identified as a priority habitat type for conservation under the EU Habitats Directive (Dir 92/43/CEE). Over the last decades many Posidonia oceanica meadows have disappeared or have been altered. Efficient monitoring is the key of the ecosystem conservation. Monitoring of vast areas covered by Posidonia oceanica is extremely difficult, costly and time consuming and generates pronounced need for new methods and tools. This case study presents potential and promote use of lightweight autonomous underwater vehicles (AUV) with the remote sensing payload as the environmentally non-destructive monitoring method. The study was performed from 2011 to 2013 on the Croatian island Murter during the ”Breaking the Surface” - international interdisciplinary field training of marine robotics and applications. Four AUVs equipped with different payloads were performing the missions in the study area. This paper presents results and analysis of different aspects important for the monitoring such as compliance with the existing monitoring indicators and descriptors used to assess the conservation status of P. oceanica, performance of the AUVs and their sensor sets, cost and time efficiency of the monitoring and geographical-localisation accuracy of the data collected.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128313566","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":"Carbon canister air fuel ratio estimation on high performance engine","authors":"C. Corvino, A. Oliva, R. Zanasi","doi":"10.1109/MED.2014.6961322","DOIUrl":"https://doi.org/10.1109/MED.2014.6961322","url":null,"abstract":"The increasingly stringent vehicle emission constraints press on the car manufacturers to decrease in hydrocarbons quantities from evaporative emission system. Activated carbon canister has been used for 30 years to capture the gasoline vapors from fuel evaporative system whose most of vehicles are equipped. The newer amendments on Low-Emission Vehicle programs, known as LEV-II, recently adopted by CARB (California Air Resources Board), impose on the vehicles to be Zero Emission Vehicles (ZEV or battery electric vehicles) and that the carbon canister has to be purged frequently: this can cause poor quality idle condition and exhaust emission levels increase as well. The article describes an input high gain observer algorithm to estimate the canister air/fuel mixture in order to improve both idle speed engine roughness and fuel evaporative emissions. Furthermore system identification of Air-to-Fuel Ratio (AFR) has been used for observer performance simulations.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"71 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134063406","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}
Nikolaos Leontiou, Dimitrios Dechouniotis, N. Athanasopoulos, S. Denazis
{"title":"On load balancing and resource allocation in cloud services","authors":"Nikolaos Leontiou, Dimitrios Dechouniotis, N. Athanasopoulos, S. Denazis","doi":"10.1109/MED.2014.6961467","DOIUrl":"https://doi.org/10.1109/MED.2014.6961467","url":null,"abstract":"Service providers must guarantee high quality of service (QoS) for each web application in a data center and simultaneously achieve optimal utilization of their infrastructure. Meeting the Service Level Objectives (SLOs), such as response time in a dynamic environment with a dense load and varying capacity, and simultaneously minimizing the energy consumption of the data center is an open research problem. This paper presents a control framework that addresses both problems of load balancing and resource allocation of consolidated web services in cloud computing infrastructure. The proposed approach aims at succeeding the customer requirements described in a Service Level Agreement (SLA) while maximizing server utilization. A hierarchical two-layer controller is established. The local (lower) level controllers determine the capacity and admitted workload of Virtual Machines (VMs), which correspond to a set of feasible operating points with performance guarantee. The global (upper) level decides the number and topology of active VMs that serve the total service demand and activates only the minimum number of servers. The cooperation of the two control layers ensures the system stability against the fluctuations of incoming requests and the system constraints.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133005952","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 non-feature-based model for range identification","authors":"Zhichao Liu, Jianliang Wang, E. Poh","doi":"10.1109/MED.2014.6961511","DOIUrl":"https://doi.org/10.1109/MED.2014.6961511","url":null,"abstract":"The correspondence problem refers to the problem of ascertaining which parts of one image correspond to which parts of another image. Correspondence problem usually needs to be solved by feature extraction and feature matching first, as a prerequisite for vision-based control and estimation. To avoid this bottleneck, assuming that an object is on a plane or has a planar surface, we present a model for non-feature-based object range estimation based on the theory of mutational analysis for shapes. The proposed model will not fail even when the object is partially out of the camera view.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133256127","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":"Placement of fixed modes by decentralised output feedback control","authors":"M. Abdolmaleki, M. Aldeen","doi":"10.1109/MED.2014.6961523","DOIUrl":"https://doi.org/10.1109/MED.2014.6961523","url":null,"abstract":"In this paper we derive a sufficient condition and provide constructive proof for decentralised fixed modes (DFMs) to be quotient fixed mode (QFMs) of LTI systems, and thus are not stabilisable. The conditions are stated in terms of algebraic properties of the system transfer function matrix and whether the DFMs are transmission zeros (TZs) of the quotient subsystems or not. A numerical example is given to illustrate the main results of the paper.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"142 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113986172","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 resource allocation in multi-hop networks: Contention vs. scheduling","authors":"R. Badalamenti, L. Giarré, I. Tinnirello","doi":"10.1109/MED.2014.6961514","DOIUrl":"https://doi.org/10.1109/MED.2014.6961514","url":null,"abstract":"CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) is actually the most used method in ad-hoc networks for transmitting on a contending medium, even if it shows poor performance in presence of hidden nodes. To increase performance, we propose an algorithm that combines CSMA and TDMA (Time Division Multiple Access) approaches. The adopted solution consists of grouping contending nodes in non-interfering subsets and granting a different numbers of time slots to different groups, while using the CSMA to manage medium access among nodes belonging to the same subset. An optimization procedure to assign the time slots to each subset of nodes and to find an equilibrium between contention and scheduling is presented.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122612447","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":"Combination of the observer principle with YOULA-parameterized regulators","authors":"C. Bányász, L. Keviczky","doi":"10.1109/MED.2014.6961518","DOIUrl":"https://doi.org/10.1109/MED.2014.6961518","url":null,"abstract":"An equivalent transfer function representation (TFR) is introduced to study the state-feedback/observer (SFO) topologies of control systems. This approach is used to explain why an observer can radically reduce even large model errors. Then the same principle is combined with Youla-parameterization (YP) introducing a new class of regulators.","PeriodicalId":127957,"journal":{"name":"22nd Mediterranean Conference on Control and Automation","volume":"388 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124040595","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}