2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf)最新文献_第2页

Towards Morphing Wing Technology in Aircraft for Improved Flight Performance 改进飞机飞行性能的变形机翼技术研究

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949627

Emmanuel Attah Zebedee, Ameer Mohammed, M. Lawal

{"title":"Towards Morphing Wing Technology in Aircraft for Improved Flight Performance","authors":"Emmanuel Attah Zebedee, Ameer Mohammed, M. Lawal","doi":"10.1109/NigeriaComputConf45974.2019.8949627","DOIUrl":"https://doi.org/10.1109/NigeriaComputConf45974.2019.8949627","url":null,"abstract":"Conventional wing structures have no adaptation to changing flight conditions – they are optimized for specific flight conditions. An aerodynamically efficient configuration in one flight condition may be inefficient in another. As such, this work explores the architecture of a morphing wing and assesses the possibility of achieving a functional deformable wing by determining suitable sensors, actuators and controllers for implementation. The morphing wing technology adopts a closed-loop control whereby real-time sensing and monitoring of the wing shape is used to determine if the deformed shape is optimum under the flight condition. For this to be achievable, different sensors and their potential for use in the determination of pressure distribution are explored. Optical sensors were found to be the most reliable. To enable control of the morphing wing during flight, actuators were investigated. Piezoelectric actuators were found to be the most suitable for an adaptive and flexible wing structure due to their weight, precision and speed. In terms of controllers, fuzzy controllers were found to be the most computationally efficient. A combination consisting of optical sensors, piezo-electrical actuators and fuzzy controllers was found to be the most efficient for implementing the adaptive wing system. The benefits of the morphing wing technology depend on the development of robust and reliable sensors, actuators and controllers that facilitate the operation of the flexible wing structure.","PeriodicalId":228657,"journal":{"name":"2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115929773","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

Improved Trajectory Planning for FES-Induced STS Movement Restoration in Paraplegia 改进的轨迹规划在fes诱导的截瘫STS运动恢复

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949647

M. Ahmed, M. S. Huq, B. S. K. Ibrahim

{"title":"Improved Trajectory Planning for FES-Induced STS Movement Restoration in Paraplegia","authors":"M. Ahmed, M. S. Huq, B. S. K. Ibrahim","doi":"10.1109/NigeriaComputConf45974.2019.8949647","DOIUrl":"https://doi.org/10.1109/NigeriaComputConf45974.2019.8949647","url":null,"abstract":"The work presented an enhanced trajectory planning for better handling of Functional Electrical Stimulation (FES) actuated revival of sit-to-stand (STS) manoeuvre. Currently there the problem of lack of FES aided devices as results of the failures of the proposed equipment to pass clinical tests. Employing control systems techniques have been yielding fruitful results. Literature indicated that further enhancement of trajectory planning could help in achieving milestones towards better performances. Continuous and coupled with bump-free trajectories are some essential properties for better control systems designs for such systems. The proposed trajectory planning utilises the six-order polynomial. Comparisons are made with the five and seven order polynomials. The fifth order polynomials give an insight of the performance of the system with lower order polynomials while the seventh order gave that of the higher order counterparts. It was employed to enhance the desired movement trajectories. Obtained results portrayed that the trajectory planning achieved are continuous and the tendencies of the appearances of jerks or spikes are eliminated. Others are an improvement on execution time by 11%, reducing the upper and lower bound terminal velocities by 16.9% and 20.9% accordingly. Thus, these indicate the possibilities of realisations of higher performance control systems for the induced movement tasks.","PeriodicalId":228657,"journal":{"name":"2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130211545","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

Tools for Analytical and Simulation Investigation of Named Data Networking 命名数据网络的分析与仿真研究工具

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949658

M. Hussaini, H. Bello-Salau, Hiba Jasim Hadi, S. A. Nor, Amran Ahmad, I. M. Hassan

引用次数: 1

NigeriaComputConf 2019 Author Index 尼日利亚计算机会议2019作者索引

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/nigeriacomputconf45974.2019.8949650

引用次数: 0

Implementation of Timing and Synchronization in Digital Clocks: A Wireless Communication Design 数字时钟中定时与同步的实现:一种无线通信设计

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949619

S. Garba, B. Yahaya, B. O. Sadiq, D. Udekwe, Z. M. Abubakar

引用次数: 2

An Examination of Different Vision based Approaches for Road Anomaly Detection 基于视觉的道路异常检测方法研究

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949646

H. Bello-Salau, A. Onumanyi, Ahmed Tijani Salawudeen, M. B. Mu’azu, A. M. Oyinbo

{"title":"An Examination of Different Vision based Approaches for Road Anomaly Detection","authors":"H. Bello-Salau, A. Onumanyi, Ahmed Tijani Salawudeen, M. B. Mu’azu, A. M. Oyinbo","doi":"10.1109/NigeriaComputConf45974.2019.8949646","DOIUrl":"https://doi.org/10.1109/NigeriaComputConf45974.2019.8949646","url":null,"abstract":"Recent advances in vehicular technology and sensing devices has led to the proliferation of different approaches for road surface condition monitoring and road anomaly detection. These approaches can be categorized into vision-based and accelerometer-based techniques. These techniques are designed to enable vehicles detect road anomalies and notify drivers of such, thereby reducing the rate of anomalous induced accidents. Also, these approaches can be incorporated into autonomous vehicles towards navigating through road terrains with anomalies such as potholes, speed bumps and rutting. The vision-based techniques have received wide acceptance among academia and industry players alike because of their inherent ability to detect road anomalies in real-time and notify drivers easily. In this regard, this paper presents a mini-survey of various state-of-the-art vision-based techniques proposed in the literature for road surface condition monitoring and anomaly detection. The merits and drawbacks of these techniques are highlighted. Furthermore, open research issues are presented. Our effort forms part of a larger goal aimed at developing robust vision processing approaches for road anomaly detection, as well as benefiting researchers involved in similar pursuits.","PeriodicalId":228657,"journal":{"name":"2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122234467","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: 6

Crone Controller Based Speed Control of Permanent Magnet Direct Current Motor 基于Crone控制器的永磁直流电动机转速控制

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949661

Idris Garba, Yusuf Abubakar Sha’aban, M. B. Mu’azu, Zaraddeen Haruna

{"title":"Crone Controller Based Speed Control of Permanent Magnet Direct Current Motor","authors":"Idris Garba, Yusuf Abubakar Sha’aban, M. B. Mu’azu, Zaraddeen Haruna","doi":"10.1109/NigeriaComputConf45974.2019.8949661","DOIUrl":"https://doi.org/10.1109/NigeriaComputConf45974.2019.8949661","url":null,"abstract":"This work aimed at developing a CRONE Controller based Speed Control of Permanent Magnet Direct Current Motors in order to achieve a robust and more effective speed control. Torque is one of the fundamental factors that affect PMDC motor’s speed control, which generate uncertainty known as disturbance torque on shaft of the motor due to increase in temperature and decrease in frequency of the system. Proportional Integral Derivative (PID) controllers are commonly used in the speed control of PMDC motors, but PID controllers often do not fully reject external disturbances in the system. As such, the CRONE controller based speed control of PMDC motors was developed to address the limitations of PID control. To achieve this, a PMDC motor model with the following system response characteristics was adopted; settling time of 6.2s, rise time of 0.79s and overshot of 30.4%. A second generation CRONE controller was developed and then applied for speed control of the PMDC motor. The performance of the developed controller was then compared with that of a Proportional Integral Derivative – Particle Swamp Algorithm (PIDPSO) controller for speed control of PMDC motor. The result of the second generation CRONE controller for the speed control of PMDC motor obtained a settling time of 0.018s and overshoot of 0.0001%. The PID-PSO controller based speed control of the PMDC motor obtained a settling time and overshoot of 0.2s and 1.87% respectively. The effectiveness of CRONE controller was visualized in frequency domain, with the stability margin of 34.5dB and 900. Simulations were carried out using MATLAB 2016a.","PeriodicalId":228657,"journal":{"name":"2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf)","volume":"89 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113935352","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

A New Concept of an Intelligent Protection System Based on a Discrete Wavelet Transform and Neural Network Method for Smart Grids 基于离散小波变换和神经网络方法的智能电网保护新概念

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949618

A. Abdulwahid

{"title":"A New Concept of an Intelligent Protection System Based on a Discrete Wavelet Transform and Neural Network Method for Smart Grids","authors":"A. Abdulwahid","doi":"10.1109/NigeriaComputConf45974.2019.8949618","DOIUrl":"https://doi.org/10.1109/NigeriaComputConf45974.2019.8949618","url":null,"abstract":"Because of advances in technology and increased pollution problems, most countries in the world use renewable energy in power generation. To avoid power outages, utility companies obligation to identify and locate the main causes of faults as soon as possible to protect energy systems.In this paper, a new technique for fault classification and detection in the transmission lines of micro-grids using a Discrete Wavelet Transform (DWT) and a Back-Propagation Neural Network (BPNN) is proposed. MATLAB is used to complete the simulation and training process of the neural network. The Daubechies4 mother wavelet ‘Db4’ is used to decompose the high-frequency components of these signals. Wavelet Transform Coefficients (WTCs) and Wavelet Energy Coefficients (WECs) are used to classify faults and detect patterns that are used as inputs for back propagation in neural network training. This information is then fed into the neural network to classify and detect the fault.This paper proposes a Wavelet Transform (WT)-based fault-detection method and disturbance-recognition method. To detect the faults, voltage signals are collected under fault conditions and processed by WT. The simulation also shows that the new algorithm is reliable and accurate.","PeriodicalId":228657,"journal":{"name":"2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125015226","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: 6

NigeriaComputConf 2019 TOC

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/nigeriacomputconf45974.2019.8949639

引用次数: 0

Development and Testing of Q-Basic Computer Software for Newton-Raphson Power Flow Studies 牛顿-拉夫森潮流研究计算机软件Q-Basic的开发与测试

2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf) Pub Date : 2019-10-01 DOI: 10.1109/NigeriaComputConf45974.2019.8949673

Lambe Mutalub Adesina, J. Katende, G. Ajenikoko

{"title":"Development and Testing of Q-Basic Computer Software for Newton-Raphson Power Flow Studies","authors":"Lambe Mutalub Adesina, J. Katende, G. Ajenikoko","doi":"10.1109/NigeriaComputConf45974.2019.8949673","DOIUrl":"https://doi.org/10.1109/NigeriaComputConf45974.2019.8949673","url":null,"abstract":"There had been obvious system insecurity in Nigerian power systems’ grid which often lead to frequent power system collapse. Studies have shown that the Privatized power companies that emanated as a result of power sector reform carried out recently in Nigeria are not fully on ground in network argumentation, planning and analysis of the network. For example, it is required that for any proposed capital project execution which would add to the existing Networks; certain analysis via system simulation need to be carried out. Such analysis would display the likely situation after the project is completed and commissioned. These analyses include investigating the bus voltage profile, power flow, losses, overvoltage condition etc. Consequently, this paper presents a development of Q-basic computer software package on Newton- Raphson power flow algorithm and subsequent testing on a 3 - Bus power system network with known solutions. Steady state operating conditions of busbars, generation, branch power flows and circuit system losses were determined. The obtained results are presented and discussed. These results are accurate and reliable, because they agree with the known solutions of the network. Conclusions are drawn, and necessary recommendations are presented.","PeriodicalId":228657,"journal":{"name":"2019 2nd International Conference of the IEEE Nigeria Computer Chapter (NigeriaComputConf)","volume":"15 3-4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131489177","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: 2