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Development of an autonomous flight controller for surveillance UAV 监视无人机自主飞行控制器的研制
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813249
Mahmood Ul Hassan, M. Ikram, Syed Irtiza Ali Shah
{"title":"Development of an autonomous flight controller for surveillance UAV","authors":"Mahmood Ul Hassan, M. Ikram, Syed Irtiza Ali Shah","doi":"10.1109/ICET.2016.7813249","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813249","url":null,"abstract":"This paper presents the different stages of development of flight controller for unmanned aerial vehicle (UAV) with autonomously flying capability. The main purpose of flight controller is to perform a petrol function between given GPS coordinates while maintaining a specified altitude for an assigned time and then return to its launching position without any human interaction. At first a simulated environment was designed to verify the concept. Then this was implemented on actual unmanned helicopter. In wake of the current political and security situation the need for autonomous UAVs and particularly the small scale helicopters are under consideration. However, hobby airframes used for normal radio controlled flying are not readily compatible with delicate, sophisticated and complex electronics. In addition to the hardware integration with such airframes, several other challenges such as electromagnetic interference, communication signal integrity from jammers and damping of strong vibrations were handled. The goal is to develop an autonomous UAV with self-controlled flying capabilities and above mentioned functionality. It should also fulfil the requirements to perform an adequate surveillance during any political and security situation.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128675340","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
Exponential stabilization of kinematic nonholonomic systems using adaptive backstepping 基于自适应反演的运动非完整系统指数镇定
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813215
Y. Butt, A. I. Bhatti
{"title":"Exponential stabilization of kinematic nonholonomic systems using adaptive backstepping","authors":"Y. Butt, A. I. Bhatti","doi":"10.1109/ICET.2016.7813215","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813215","url":null,"abstract":"We consider stabilization problem for n-dimensional kinematic nonholonomic systems with m-inputs. The control objective in exponential stabilization is to force the system states x ϵ Rn from an arbitrary initial state x0 to origin with a finite convergence rate γ. We employ adaptive back stepping to stabilize the nonholonomic system. Adaptive back stepping seeks to stabilize n system states in n + r dimensional manifold with r being the number of adaptation parameters. Using this approach, desired performance and robustness properties of the feedback control system can be guaranteed. The effectiveness of the proposed algorithm is established by applying it on a unicycle type system moving on hyperbolic plane. Simulation results confirm the mathematical developments.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124966883","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: 1
Heat transfer study of supercritical water (SCW) along vertical and horizontal bare circular tubes using CFD 超临界水沿垂直和水平裸圆管传热的CFD研究
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813230
M. Tehseen, K. Qureshi, M. Basit, R. Nawaz
{"title":"Heat transfer study of supercritical water (SCW) along vertical and horizontal bare circular tubes using CFD","authors":"M. Tehseen, K. Qureshi, M. Basit, R. Nawaz","doi":"10.1109/ICET.2016.7813230","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813230","url":null,"abstract":"Heat transfer at supercritical pressures involves two major phenomena i.e. heat transfer enhancement and heat transfer deterioration. In this paper effects of orientation on the heat transfer in supercritical water are studied. Properties of SCW are provided to the ANSYS FLUENT code using .scm file and piecewise linear interpolation is used for calculation of local value of properties during computations. Effects of buoyancy and heat transfer deterioration are studied and compared for both vertical as well as horizontal bare circular tubes.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128186822","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
Brain activity monitoring system with HDMI interface developed on an FPGA 基于FPGA开发的HDMI接口脑活动监测系统
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813272
F. A. Khattak, Uzair Saif, Awais Bin Zahid, M. S. Nazir, M. Aqil
{"title":"Brain activity monitoring system with HDMI interface developed on an FPGA","authors":"F. A. Khattak, Uzair Saif, Awais Bin Zahid, M. S. Nazir, M. Aqil","doi":"10.1109/ICET.2016.7813272","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813272","url":null,"abstract":"This paper presents a brain activity monitoring system developed on a field programmable gate array (FPGA). A high definition multimedia interface (HDMI) core is introduced to display an anatomical brain on an LED/LCD monitor in realtime. A desired 2D view of a 3D anatomical image, selected beforehand by the user by a proposed user interface software, is converted to the jpeg formatted image. The registration of channels/voxels of interest in MNI or SCS coordinate systems is facilitated by the interface. To expedite the real-time dynamic displaying, RGB value of each pixel has been transformed to a single byte information and send it to the FPGA by a self-developed Ethernet core. The FPGA saves it in memory, displays the brain view on the screen. The FPGA is further notified with the pixel location of each registered channel. The FPGA becomes ready to update the color-map of the pixels of the registered channels to show the dynamic activity during a real-time experiment. The proposed system, validated by experimental dataset, has potential biomedical applications.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124437941","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: 1
Determination of modal characteristics of cantilever beam 悬臂梁模态特性的确定
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813224
M. Imran, A. Abbasi, M. J. Hyder
{"title":"Determination of modal characteristics of cantilever beam","authors":"M. Imran, A. Abbasi, M. J. Hyder","doi":"10.1109/ICET.2016.7813224","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813224","url":null,"abstract":"Modal analysis is a method to describe a structure in terms of its dynamic properties such as natural frequency, damping and mode shapes. These parameters are essential in engineering design and analysis. In this work, Theoretical modal analysis of cantilever beam using Euler-Bernoulli beam theory and FEA modal analysis of cantilever beam in ANSYS Workbench, have been performed to find its natural frequency and mode shapes. Finally, FEA results are compared with analytical results and a good agreement was found between modal parameters.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114234480","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: 8
Behavior of lab scale scissor dry friction damper under harmonic loading 实验室尺度剪式干摩擦阻尼器在谐波荷载作用下的性能
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813232
H. Rafique, Hammad Ahmed, M. Z. Iqbal
{"title":"Behavior of lab scale scissor dry friction damper under harmonic loading","authors":"H. Rafique, Hammad Ahmed, M. Z. Iqbal","doi":"10.1109/ICET.2016.7813232","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813232","url":null,"abstract":"The behavior of scissor action dry friction damper under harmonic loading has been presented. Finite element model was developed in PTC CREO and then imported in ANSYS to check the response with varying values of normal force (100N, 120N and 150N). A constant force of 20N is applied to excite the damper harmonically. Moreover the experiments are performed after fabricating the device to validate the results. A separate set of apparatus was used to calculate the coefficient of friction between the contacting surfaces.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"14 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132728776","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
Dust particle collection efficiency of venturi scrubber with varying number of orifices using CFX 采用CFX的不同孔数文丘里洗涤器的粉尘收集效率
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813269
Sarim Ahmed Qamar, Amir Sohail, K. Qureshi, Ajmal Shah, N. Irfan
{"title":"Dust particle collection efficiency of venturi scrubber with varying number of orifices using CFX","authors":"Sarim Ahmed Qamar, Amir Sohail, K. Qureshi, Ajmal Shah, N. Irfan","doi":"10.1109/ICET.2016.7813269","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813269","url":null,"abstract":"In the present study, computational fluid dynamics (CFD) investigation of dust particle collection efficiency in a force feed venturi scrubber has been performed using ANSYS CFX. A Venturi scrubber provides an effective way to remove dust particles flowing in a contaminated gas which are captured in fine droplets formed due to disintegration of a liquid as a result of high kinetic energy of air. Eulerian-Lagrangian approach is used to analyze the dust particle collection in a venturi scrubber for gas (air) flow rate at 1 g/s and liquid flow rate of 6 g/s with 2, 4, 6 and 8 orifices placed at the start of throat, end of throat and on the converging section. Cascade atomization and breakup model (CAB) is used for the prediction of liquid breakup in the venturi scrubber. Dust particles (TiO2) having diameter of 1 μm are used in this research. Velocity of gas at the throat, droplet size, volume fractions and collection efficiency are studied to analyze the working of venturi scrubber.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132809706","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
Adaptive feedback linearization based HVDC damping control paradigm for power system stability enhancement 基于自适应反馈线性化的高压直流阻尼控制模式增强电力系统稳定性
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813240
Saghir Ahmad, L. Khan
{"title":"Adaptive feedback linearization based HVDC damping control paradigm for power system stability enhancement","authors":"Saghir Ahmad, L. Khan","doi":"10.1109/ICET.2016.7813240","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813240","url":null,"abstract":"This research work proposes an application of conjugate gradient algorithm for optimization of adaptive Feedback Linearization Control (FBLC) strategy for damping power system oscillations through HVDC link. The nonlinear supplementary control scheme is based on real-time optimized NeuroFuzzy identification of the power system dynamics. A self-tuned (FBLC) is employed to derive appropriate control law to modulate the real power flow through HVDC system and improve its damping. Validation of the performance of control scheme is carried out through different fault situations of two-area test power system and bench-marked against the gradient descent based FBLC. The results obtained from the proposed control strategy exhibit significant stability improvement of the power system in transient-state and steady-state conditions.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134639086","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: 3
A pipeline inspection gauge based on low cost magnetic flux leakage sensing magnetometers for non-destructive testing of pipelines 一种基于低成本漏磁传感磁强计的管道无损检测仪表
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813212
M. A. Pasha, Tariq M. Khan
{"title":"A pipeline inspection gauge based on low cost magnetic flux leakage sensing magnetometers for non-destructive testing of pipelines","authors":"M. A. Pasha, Tariq M. Khan","doi":"10.1109/ICET.2016.7813212","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813212","url":null,"abstract":"The aim of this paper is to test if cost-effective off the shelf magnetometers and permanent disc magnets can be utilized to introduce a new method of low-cost Magnetic Flux Leakage (MFL) based Non-Destructive Testing (NDT) in the field of In-line Inspection (ILI) of ferromagnetic pipelines. During the course of experimentation the Anisotropic Magneto-resistive (AMR) and Tunneling Magneto-resistive (TMR) magnetometers were utilized which are commercially available low-cost prepackaged magnetometers available as digital compass breakout boards. Also employed were ceramic permanent disc magnets fixed circumferentially in the PIG assembly to generate the flux. Finally, the flaws that were tested were introduced into the mild-steel pipeline specimens, to generate MFL, were machined flaws of the slit and pinhole types of 2mm, axial length and diameter, respectively and a dent of approximately 6mm area. The results of the experiment show that off the shelf AMR and TMR magnetometers, coupled with permanent magnets, can detect flaws in ferromagnetic pipelines and provides an alternative to conventional expensive PIGs and ILI in use in the industry today.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130244612","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: 5
Nonlinear dynamic regional anti-windup compensator (RAWC) schema for constrained nonlinear systems 约束非线性系统的非线性动态区域抗缠绕补偿器(RAWC)方案
2016 International Conference on Emerging Technologies (ICET) Pub Date : 2016-10-01 DOI: 10.1109/ICET.2016.7813237
Engr. Dr. Muntazir Hussain, Najam us Saqib, M. Rehan
{"title":"Nonlinear dynamic regional anti-windup compensator (RAWC) schema for constrained nonlinear systems","authors":"Engr. Dr. Muntazir Hussain, Najam us Saqib, M. Rehan","doi":"10.1109/ICET.2016.7813237","DOIUrl":"https://doi.org/10.1109/ICET.2016.7813237","url":null,"abstract":"This paper concentrate on the study of the synthesis of regional anti-windup compensator (RAWC) for saturated nonlinear control system, by using quadratic Lyapunov functional, an estimate region of convergence, regional modified sector condition and Lipschitz condition. Further L2 gain minimization is employed to minimize L2 gain of the decoupled nonlinear component. Based on linear matrix inequality (LMI) condition, it is revealed that for stable and unstable nonlinear system, the RAWC can accomplish exponential and L2 exponential stability. Two numerical examples are used to demonstrate the effectiveness of the suggested anti-windup methodology.","PeriodicalId":285090,"journal":{"name":"2016 International Conference on Emerging Technologies (ICET)","volume":"712 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133514701","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: 13
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