{"title":"Passenger perception on terminal building facilitation at Bandaranaike International Airport","authors":"H. C. G. Dayarathna, K. Perera, W. Fernando","doi":"10.1109/MERCON.2017.7980475","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980475","url":null,"abstract":"Bandaranaike International Airport (BIA) is the main and the busiest airport in Sri Lanka. There are twenty-six airlines in the airport to get the airport and aviation services from the Airport and Aviation Services (Sri Lanka) Ltd (AASL) which provides lots of services to both passengers and airlines within the airport and the owner of the space and fixed structures of the airport. Airport is the place where connects the country with the world by air. When passengers arrived to a country Airport is the first place helps them to make a picture about the country whether it is good or bad. As well as there are transit and transfer passengers within the sector who get the facilities. Lots of countries use the facilities given to passengers in the terminal building to attract them into the country. Therefore, making a good perception on the facilities at the airport helps to attract more tourists into the country. The objective of this research is to measure the passenger satisfaction level about the existing facilities of the terminal building which are provided to departure, arrival, transit and transfer passengers at BIA. A questionnaire survey has been conducted for collecting the data. Both the graphical data presentation (specially bar charts) and mathematical applications are used to analyze the data.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124315095","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}
D. Jayamaha, I.H.N Madhushani, R.S.S.J Gamage, P.P.B Tennakoon, J. R. Lucas, U. Jayatunga
{"title":"Open conductor fault detection","authors":"D. Jayamaha, I.H.N Madhushani, R.S.S.J Gamage, P.P.B Tennakoon, J. R. Lucas, U. Jayatunga","doi":"10.1109/MERCON.2017.7980511","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980511","url":null,"abstract":"Detection of open live conductors is a challenging task in the power system operation since it acts as a high impedance fault. High impendence faults (HIF) characteristically has a very low current value which is often not detectable using conventional over current protection devices. Several methods of detecting these HIF have been put forward. These methods involve spectral analysis of currents, algorithms based on residual current analysis and detection of unbalanced voltages produced by the fault at the end of distribution line. This paper presents a method of detecting open conductor faults based on the sequence current component. Here the ratio of negative sequence current to positive sequence current is used as the detecting parameter and fault is detected through the unbalanced resulted in the system with the occurrence of the fault.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"362 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122360114","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":"Mud and dirt separation method for floor cleaning robot","authors":"H.G.T. Milinda, B. Madhusanka","doi":"10.1109/MERCON.2017.7980502","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980502","url":null,"abstract":"Floor cleaning robot has gained popularity in the European country. When people are busy with their work, the robot is to take over house cleaning task. Most of the service robot technologies become more and more matured so that applications far beyond fetch and carry tasks will be possible in near future. Most of the robot perform one task at the time. To be of any use, cleaning robots should be able to monitor the outcome of their work, or the need to remove dirt at the beginning for point-wise cleaning. This paper presents an approach towards the detection of various dirt on textured surfaces using a Camera image. The algorithm aims at removing the regular part of the image with spectral residual filtering leaving only the dirt and some noise and introduced a novel method to identify mud on the floor. With further post-processing, it is possible to localize many kinds of dirt in the image.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126440586","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":"Extended Kalman Filter based fusion of reliable sensors using fuzzy logic","authors":"Tanmoy Das, P. A. D. Harischandra, A. Abeykoon","doi":"10.1109/MERCON.2017.7980456","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980456","url":null,"abstract":"Precise localization for autonomous robots is necessary for advancement in the world of unmanned robotics. Probabilistic algorithms are used to fuse multiple position sensors in order to locate a robot. But failure of any sensor in this process drastically lowers the performance of these algorithms. Here comes the need to facilitate these probabilistic models with intelligence. This paper presents an intelligent localization technique for autonomous maneuvering of robots. Localization of the robot is done by fusing three different types of position sensors using an Extended Kalman Filter (EKF) and a Kalman Filter (KF). The fusing method is made intelligent by keeping track of the relative error among the sensors and deciding a reliability factor on each sensor accordingly. A Fuzzy inference model has been adopted to predict the reliability factor for each sensor. According to the predicted reliability of each sensor, an error covariance matrix is set up, which is fed into the traditional KF and EKF algorithms. This helps the fusion algorithms to fuse the sensors intelligently and the final output is more accurate. A high precision localization is achieved by this intelligent method of fusing. A simulation is carried out in MATLAB considering three position sensors. The simulation is validated by making one of the sensors erroneous and comparing the output results of the new fusion algorithm with the traditional algorithm.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134425262","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":"Development of an upper limb master-slave robot for bimanual rehabilitation","authors":"P. A. D. Harischandra, A. M. Harsha S. Abeykoon","doi":"10.1109/MERCON.2017.7980455","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980455","url":null,"abstract":"Most activities in daily life involve the use of both hands. Post-stroke patients lose inter-limb coordination and require intensive rehabilitation therapy for a faster recovery. Robot based rehabilitation is preferred to traditional rehabilitation methods due to precise repeatability and the accurate measurements it provides. Bimanual rehabilitation robots can help the patient to keep the position symmetry. Most studies in rehabilitation robots have overlooked the necessity of accurate resistance training. Conventional rehabilitation methods cannot ensure position synchronization during rehabilitation. In order to realize resistance training with maximum efficiency, the resistance should be varied with a reference to a strength profile of a healthy person. This paper presents a master slave robot system designed for bimanual rehabilitation training. Disturbance OBservers (DOB) are implemented to make the system robust. Accurate force sensing is achieved using the Reaction Torque OBserver (RTOB). The paper also presents a method for seamless transfer between the resistance and assistance modes. The proposed methods were validated by experiments.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"351 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134073115","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}
C. D. Jayaweera, D. Karunaratne, S. Bandara, S. Walpalage
{"title":"Investigation of the effectiveness of nanocellulose extracted from Sri Lankan Kapok, as a filler in Polypropylene polymer matrix","authors":"C. D. Jayaweera, D. Karunaratne, S. Bandara, S. Walpalage","doi":"10.1109/MERCON.2017.7980446","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980446","url":null,"abstract":"Kapok (Ceiba pentandra) is a commonly available plant in Sri Lanka. Its application in waste water treatment, biomedical field and domestic uses is numerous. The purpose of this research is to investigate the effectiveness of nanocellulose extracted from Ceiba pentandra, as a filler in Polypropylene polymer matrix. Nanocellulose extracted from acid hydrolysis was further treated to avoid deterioration of its strengths and to increase its compatibility with the polymer matrix. The morphology of the extracted cellulose was studied under scanning electron microscopy, which revealed the existence of nanofiber and flakes of thickness in the nano dimension between 100 nm to 1000nm. Composites of Polypropylene and nanocellulose were prepared by extrusion. Mechanical, thermal, morphological and physio chemical properties of the composites were tested. The PP/cellulose composites demonstrated a remarkable improvement of tensile modulus and tear resistance. However lack of interfacial interactions detrimentally affected certain mechanical properties. The effect of dispersion of filler on mechanical properties was also briefly studied by comparing results of mechanical tests of composites prepared at different speeds and residence times in the extruder. Significant changes in the thermal properties weren't noted, although a slight improvement of the initial decomposition temperature was noted in the thermal gravimetric analysis. The distribution of the filler in the polymer matrix was observed from which nano level dispersion was observed. X-Ray diffraction was carried out to determine the crystallinity of the extracted cellulose.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130968846","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":"Accurate attitude estimation under high accelerations and magnetic disturbances","authors":"Harith Thisura, S. R. Munasinghe","doi":"10.1109/MERCON.2017.7980452","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980452","url":null,"abstract":"Accurate attitude estimation in high dynamic motion scenarios like unmanned aerial vehicle navigation or human motion and magnetically disturbed indoor environments requires compensation of accelerometer disturbances as well as magnetometer disturbances. This paper proposes a novel algorithm for accelerometer disturbance rejection by adaptive estimation of accelerometer measurement covariance matrix online. Magnetic disturbances are generally lasting long compared to accelerometer disturbances which are generally short term in indoor navigation environments. Novel two step Kalman filter update method is proposed to separate attitude correction from heading correction. The magnetometer is used only for heading update such that the attitude estimation is not affected by errors in magnetometer measurement. Performances of the proposed algorithms are shown by using real world sensor data.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124570532","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}
H. Hettiarachchi, K.T.M.U. Hemapala, A. Jayasekara
{"title":"A Fuzzy logic based power management system for an integrated AC-DC hybrid microgrid model","authors":"H. Hettiarachchi, K.T.M.U. Hemapala, A. Jayasekara","doi":"10.1109/MERCON.2017.7980510","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980510","url":null,"abstract":"Recent development in Fuzzy logic control algorithm has led to the advancement of the existing smart grid technologies where it requires powerful control algorithm in an uncertain environment due to high penetration of the Renewable Energy Sources(RES). Due to the adaptive and human-like control decisions taken by Fuzzy Inference System (FIS), this would be much suitable to tolerate the uncertainties caused in multi-scenario operation of Micro Grid(MG). This paper presents an enhanced control methodology for a DC busbar in AC-DC hybrid MG with an agent based automated distribution system. A laboratory scaled MG which contains a few Dispersed Generators(DGs), a storage devices and a distribution system based on Multi Agent System(MAS) along with the protection system, advanced smart metering system and reliable communication methodology has been developed as a fully automated operating system in both grid connected and islanded modes for the purpose of governing better modes of control. This improvement in control needs to be simulated in the MATLAB/SIMULINK environment to ensure its capability to restore the disturbed situation prior to the hardware implementation.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115463880","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":"Sustaining technopolis in Sri Lanka","authors":"A. I. Ramanayaka, A. Jayawardane","doi":"10.1109/MERCON.2017.7980531","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980531","url":null,"abstract":"the technopolis based on nanotechnology in Sri Lanka, has been initiated successfully and entered the development phase of its activities. Central to the frameworks of evaluating sustainability of technopolis, interactions in the eco system are often evaluated. This study employs a comprehensive interaction analysis using the model of seven system functions of technological innovation systems, to identify virtuous cycles, which are propitious to the propagation and sustenance of the technopolis. The study identifies advocacy coalitions in the form of political lobbying is a dominant dynamic in the pre development phase and the system undergo virtuous cycles and enters the next phase. The sustenance of the system in the development stage is fueled by dominant functions such as resource mobilization, market formation, and knowledge diffusion.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127228062","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":"Longitudinal analysis of supply chain transformation project management","authors":"HN Perera, Ji Sudusinghe","doi":"10.1109/MERCON.2017.7980473","DOIUrl":"https://doi.org/10.1109/MERCON.2017.7980473","url":null,"abstract":"This empirical study investigates three supply chain transformation projects in Sri Lanka. Building on two previous studies, this study attempts to discern the imperatives and essentials of a successful supply chain transformation project. In essence, this study retrospectively scrutinizes the outcomes of supply chain transformation projects commenced a minimum of 5 years earlier. By juxtaposing the outcomes with longitudinal data from of the said projects, the authors draw unique insights on the dynamics of managing a supply chain transformation project. Additionally, this study outlines critical factors that need to be taken into consideration when implementing supply chain transformation projects. Furthermore, this study improves and outlines the supply chain project management process outlined in previous studies [1]. In sum, this study connects the two growing fields of Supply Chain Management and Project Management in order to posit the importance of expanding the understanding of supply chain project management.","PeriodicalId":395453,"journal":{"name":"2017 Moratuwa Engineering Research Conference (MERCon)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122148676","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}