Tesis sobre el tema "Tracking control"
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Long, Matthew Robert. "Spacecraft Attitude Tracking Control". Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/33843.
Texto completoMaster of Science
Ramírez, Eduardo Díaz. "A MORE EFFICIENT TRACKING SYSTEM FOR THE SANTIAGO SATELLITE TRACKING STATION". International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604559.
Texto completoA digital antenna control system has been designed and installed on a pedestal that was formerly used to drive a VHF array and that has now been replaced with an 11 meter S-Band parabolic reflector. In this Paper, the former analog tracking system will be described, showing all the drawbacks that made it unusable for S-Band. Subsequently, the development and implementation of the digital S-Band tracking system, using Labview, C++ & digital control theory will be discussed. Finally, there will be a comparison between the digital and analog system, too.
Sakurama, Kazunori. "Trajectory Tracking Control of Hamiltonian and Hybrid Control Systems". 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/147576.
Texto completoWang, Ning. "Model-Free Optimized Tracking Control Heuristic". Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40911.
Texto completoKeller, Joseph J. "Tracking control of autonomous underwater vehicles". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Dec%5FKeller.pdf.
Texto completoThesis advisor(s): Anthony J. Healey. Includes bibliographical references (p. 67-68). Also available online.
Liu, Yong. "NEURAL ADAPTIVE NONLINEAR TRACKING USING TRAJECTORY LINEARIZATION". Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1177092159.
Texto completoSalai, Robert. "Tracking of Head Movements for Motion Control". Thesis, Norwegian University of Science and Technology, Department of Engineering Cybernetics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9901.
Texto completoThe capture of gestures in order to use them as input for intuitive control has been investigated exhaustively in recent years. However, for the most part this has resulted in relatively expensive devices. The contribution of this report is the investigation on the feasibility of the development of a low-cost vision based input device for the tracking of head movements, concerning the use of them for motion control. The input device relies on the infrared camera, along with the built-in image analysis tools, present on a Nintendo Wii remote for the measurement of the location and orientation of a head-mountable marker. The marker consists of a set of optical feature points which are easily detectable, and organized in a fashion which allows for the determination of its position and orientation in space. The developed input device was then evaluated in order to determine the operating range, accuracy and robustness, and was shown to be feasible for its intended use. Finally, the implemented device was utilized to control a mechanical output device, being a unit capable of panning and tilting.
Yao, Liqun. "Robust nonlinear tracking control of robotic manipulators". Thesis, University of Leicester, 1999. http://hdl.handle.net/2381/30175.
Texto completoHitchings, Mark R. y n/a. "Distance and Tracking Control for Autonomous Vehicles". Griffith University. School of Microelectronic Engineering, 1999. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20050902.084155.
Texto completoSever, Manfred D. M. "Tip velocity tracking control for elastic manipulators". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0014/NQ35318.pdf.
Texto completoButler, Joseph MacKay. "Tracking and control in multi-function radar". Thesis, University College London (University of London), 1998. http://discovery.ucl.ac.uk/1317909/.
Texto completoTurner, P. J. "Tracking control of a direct-drive robot". Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/46838.
Texto completoMiller, James J. y Philip H. Tannenholz. "AN IMPROVED DRONE TRACKING CONTROL SYSTEM TRANSPONDER". International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613789.
Texto completoImproved performance has been achieved in the new Herley design of the Model MD700C-1 Drone Tracking and Control System, C-band Command and Control Transponder. The approach for obtaining better radio frequency rejection, automatic gain control, local oscillator stability, and power supply efficiency is described. New hybrid microwave integrated circuit application techniques were used to design a small local oscillator, tunable over the 5400 to 5900 MHz range with a frequency drift of less than ± 1 MHz. This low frequency drift allowed the use of a 4 pole immediate amplifier filter, 60 dB down, at 40 MHz bandwidth, which, when coupled with the three cavity radio frequency preselector filter, provides 7 pole out of band rejection for unwanted radar signals operating at close frequencies. To augment the out of band rejection, a new form of 75 dB dynamic range automatic gain control was used, which combines signal attenuation with a circuit that reduces immediate frequency noise with increasing signal. This allows rejection of the radars own in-band multipath signals by reducing the gain and threshold sensitivity. To reduce power consumption and heat while operating over a wide voltage range, a switching mode regulator and a nonsaturating core power supply was designed to operate at 80% efficiency. Compared to units in field use over the past 10 years, the new design shows improvements of 400 percent in local oscillator frequency stability, 30 percent in out of band frequency rejection, 66 percent in the automatic gain control dynamic range, and 60 percent in power supply efficiency. The MD700C-1 was developed by Herley Industries for the USAF SMALC, and is currently in production.
Chen, Yiyang. "Iterative learning control for spatial path tracking". Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/415865/.
Texto completoHitchings, Mark. "Distance and Tracking Control for Autonomous Vehicles". Thesis, Griffith University, 1999. http://hdl.handle.net/10072/366396.
Texto completoThesis (Masters)
Master of Philosophy (MPhil)
School of Microelectronic Engineering
Science, Environment, Engineering and Technology
Full Text
Simon, Daniel. "Model Predictive Control in Flight Control Design : Stability and Reference Tracking". Licentiate thesis, Linköpings universitet, Reglerteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-103742.
Texto completoThe series name "Linköping studies in science and technology. Licentiate Thesis" is incorrect. The correct series name is "Linköping studies in science and technology. Thesis".
Callantine, Todd Jeffrey. "Tracking operator activities in complex systems". Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/31091.
Texto completoVeibäck, Clas. "Tracking of Animals Using Airborne Cameras". Licentiate thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-132426.
Texto completoLINK-SIC
Hawkins, G. J. "Control techniques for electronic beam squint tracking systems". Thesis, University of Bristol, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339823.
Texto completoBest, Robert Andrew. "Integrated tracking and guidance". Thesis, University of Birmingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322491.
Texto completoDamweber, Michael Frank. "Model independent offset tracking with virtual feature points". Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/17651.
Texto completoSato, Kazuhiro. "An Algebraic Analysis Approach to Trajectory Tracking Control". 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188865.
Texto completoKe, Zhenqing. "Sampled-data control: stabilization, tracking and disturbance rejection". Thesis, University of Bath, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492283.
Texto completoShahzad, Muhammad Imran y Saqib Mehmood. "Control of Articulated Robot Arm by Eye Tracking". Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3096.
Texto completoPourbohloul, Babak. "Control and tracking of chaos in Hamiltonian systems". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0007/NQ43106.pdf.
Texto completoGarg, Aditya. "Adaptive and optimal tracking control of electromechanical servosystems". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ63307.pdf.
Texto completoMouri, Richard I. "The facilities automated control and tracking system (FACTS)". Master's thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-01202010-020124/.
Texto completoMansoori, Nasser. "Tracking of time-varying parameters in self-tuning control". Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315646.
Texto completoPetropoulakis, L. "Design of digital trajectory tracking systems for robotic manipulators". Thesis, University of Salford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384976.
Texto completoCooper, David Maurice. "Nonlinear tracking by trajectory regulation control using backstepping method". Ohio : Ohio University, 2005. http://www.ohiolink.edu/etd/view.cgi?ohiou1125370268.
Texto completoErlandsson, Tina. "Angle-Only Target Tracking". Thesis, Linköping University, Department of Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8537.
Texto completoIn angle-only target tracking the aim is to estimate the state of a target with use of measurement of elevation and azimuth. The state consists of relative position and velocity between the target and the platform. The platform is an Unmanned Aerial Vehicle (UAV) and the tracking system is meant to be a part of the platform’s anti-collision system. In the case where both the target and the platform travel with constant velocity the angle measurements do not provide any information of the range between the target and the platform. The platform has to maneuver to be able to estimate the range to the target.
Two filters are implemented and tested on simulated data. The first filter is based on a Extended Kalman Filter (EKF) and is designed for tracking nonmaneuvering targets. Different platform maneuvers are studied and the influence of initial errors and the geometry of the simulation scenario is investigated. The filter is able to estimate the position of the target if the platform maneuvers and the target travels with constant velocity. Maneuvering targets on the other hand can not be tracked by the filter.
The second filter is an interacting multiple model (IMM) filter, designed for tracking maneuvering targets. The filter performance is highly dependent of the geometry of the scenario. The filter has been tuned for a scenario where the target approaches the platform from the front. In this scenario the filter is able to track both maneuvering and non-maneuvering targets. If the target approaches the platform from the side on the other hand, the filter has problems with distinguish target maneuvers from measurement noise.
Streich, Ronald G. y Charles R. Townsend. "Windows at a Tracking Site". International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/611864.
Texto completoRapid setup and verification of 4 automatic tracking antennas, 2 radio frequency switch matrixes, 32 telemetry receivers with 16 diversity combiners, an intermediate frequency switch matrix and the signal distribution equipment interface to the analog and digital fiber optic relay systems was required. This paper provides sample displays of the station status window, telemetry receiver and test parameter dialog boxes, mission event log window and test result windows for bit error rate, noise power ratio, solar calibration and antenna servo tests. Use of the software is apparent from sample displays so the text concentrates on lessons learned from site surveys, verification of configuration against mission files, accommodation of change of plug-in modules (e.g., IF filters in the telemetry receiver), tolerance of equipment removed from the system for maintenance, built-in test of serial and parallel communications and modular software design for replacement of equipment.
Xiao, Weidong. "Improved control of photovoltaic interfaces". Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2393.
Texto completoHyllengren, Jonas. "Clustering for Multi-Target Tracking". Thesis, Linköpings universitet, Reglerteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-143807.
Texto completoLu, Chi-Chiuan y 爐啟銓. "Robust Fuzzy Tracking control". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/s3v5tf.
Texto completo國立高雄應用科技大學
電機工程系博碩士班
96
This issue of robust fuzzy control of T-S fuzzy systems is studied in the thesis. For the cases of systems with and without disturbance and uncertainties, the state-feedback fuzzy tracking controllers are designed respectively. All the designed conditions are expressed in the form of LMIs, thus they are numerically realizable. From the simulations of examples, it can be seen that the proposed approach achieves a better tracking performance in comparison with existing literature.
Hung, Je-Bin y 洪哲彬. "Tracking Control of Engine Valve". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/13802873120194995864.
Texto completo國立臺灣大學
機械工程學研究所
95
The intake/exhaust valve is driven by the camshaft with constant angular velocity while the spark-ignition engine is in operation. Hence, the opening/closing timing of valves is unable to adjust according to engine speed. As a result, the engine has optimum efficiency only at certain engine speeds. Variable valve timing system can change the timing of valve in compliance with the engine speed so that engine’s optimal efficiency can be maintained at all speed. Research shows that such a proved effective for improving engine performance and fuel economy. In this thesis, we propose a new method to implement variable valve timing by positioning the angular position of camshaft. The camshaft then drives the valve to track designed trajectory. The method can eliminate the valve impact on its seating that occurs in electromagnetic engine valve. Moreover, it is able to reduce wear and acoustic noise.
Hung, Je-Bin. "Tracking Control of Engine Valve". 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-0507200717091900.
Texto completoLee, jiann bang y 李建邦. "Pressure tracking control of a pneumatic control system". Thesis, 1998. http://ndltd.ncl.edu.tw/handle/34913924192704550578.
Texto completo國立成功大學
機械工程學系
86
Because of the high compressibility of air, it is very difficult to obtain the precise mathematical model of pneumatic control system. The fuzzy logic control and the neural network theories have been developed in the recent decades. By means of applying the fuzzy logic control theory to design a controller whose mathematical model of the system is not necessary, and the neural network has the ability of learning. Therefor, it is very suitable to apply the intelligent control theory which combines the fuzzyThis paper presents an on-line neural fuzzy controller to control the preesure of a pneumatic cylinder. According to the system output and input relation The learning rate can adjust by itself for increasing learning efficiency. A pressure reducing valve is often used in traditional pneumatic pressure control system, this paper compares servo valve and proportion valve to control pneumatic pressure system. According to the experimental data, the neural fuzzy controller has good accuracy in pressure control in each case.
"On tracking a deterministic growth". 2003. http://library.cuhk.edu.hk/record=b5891656.
Texto completoThesis (M.Phil.)--Chinese University of Hong Kong, 2003.
Includes bibliographical references (leaves 67-69).
Abstracts in English and Chinese.
Chapter 1 --- Introduction and Literature Review --- p.1
Chapter 2 --- The Tracking Portfolio Models --- p.7
Chapter 2.1 --- Problem Formulation --- p.8
Chapter 2.2 --- Reformulation of Tracking Models --- p.12
Chapter 2.3 --- A Stochastic LQ Control Approach --- p.13
Chapter 3 --- Efficient Tracking: Deterministic Market Parameters --- p.16
Chapter 3.1 --- Solution to Model I --- p.17
Chapter 3.2 --- A Special Case of Model I --- p.23
Chapter 3.3 --- Solution to Model II --- p.24
Chapter 3.4 --- A Special Case of Model II: Mean-Variance Portfolio Selection --- p.32
Chapter 3.5 --- Solution to Model III --- p.36
Chapter 4 --- Efficient Tracking: Markov-Modulated Market Parameters --- p.41
Chapter 4.1 --- Problem Formulation --- p.42
Chapter 4.2 --- Solution to Model I with Regime Switching --- p.47
Chapter 4.3 --- Solution to Model II with Regime Switching --- p.52
Chapter 4.4 --- Solution to Model III with Regime Switching --- p.59
Chapter 5 --- Conclusion --- p.64
Bibliography --- p.66
HSIAO, YUNG-LONG y 蕭永隆. "Trajectory Tracking Control of Redundant Manipulators". Thesis, 1997. http://ndltd.ncl.edu.tw/handle/16641495572540039537.
Texto completoLai, Hrong Ren y 賴鴻仁. "Trajectory Tracking Control of Articulated Manipulators". Thesis, 1997. http://ndltd.ncl.edu.tw/handle/48705108583414256905.
Texto completoWang, Wen-Yu y 王文裕. "Vehicle Tracking Control Using Image Detection". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/u33rh4.
Texto completo國立臺灣科技大學
機械工程系
95
This thesis studies the problem of controlling a model tank using direct image processing feedback and fuzzy logic to achieve a real time image-based unmanned vehicle tracking system. To implement the tracking control of the model vehicle, a CCD camera is mounted on the vehicle and images form the camera are processed by conventional image processing techniques such as Binary Image, Median Filter to separate the desired track line from the background. The pixels from the processed track line are then approximated as a straight line mathematical model using curve fitting, and the distance and heading errors between the tank position and the desired track objective can be deriver from the line model. The distance and heading errors are then used as inputs to fuzzy logic controller to generate control outputs. To recode and analyze the resulting tracking error, another camera is mounted on the ceiling to recode the vehicle path and desired track. The experiment results show that the controlled vehicle can achieve less than 2 centimeters during straight line tracks and for U-shape tracks the tracking errors as less than 6 centimeters.
Lin, Shyh-Woei y 林世偉. "Adaptive Tracking Control for Robotic Manipulators". Thesis, 1994. http://ndltd.ncl.edu.tw/handle/80160875331280215191.
Texto completo中原大學
機械工程研究所
82
The various control algorithms have been proposed to resolve variant control problems of robotics manipulator in many references. Generally, robotic controller design are based on the analysis of robotic system dynamics. In the presence of uncertainty on the mass properties of the load or its exact position in the end-effector, have spurred a large body of literature on the adaptive control of robotic manipulators. The nonlinearity of robot dymanics, makes them even more complex to analyze than the linear dynamic systems on which most of the existing adaptive controltheory has been traditionally focused. Robotic dynamic equations are derived by using Denavit-Hart- enberg Representation and presented in this paper. The adaptive control technique are used in building robot controller. From the system input and output dynamics relation, we could estimate the unknown parameters. The persistence excitation condition are derived by using the least-squares with exponential forgetting factor method. By using the Lyapunov global stability theorem, we obtain the control law and the adaptive law in fitting this system. The adaptive controller is tested by computer simulatio- ns for a four degrees of freedom robot. During simulation process, the controller drives robot to track a given trajectory while it carries an uncertain payload under the persistent excitation condition. The results show control algorithms performs its function and parameters estimated error tend to zero in accordance with our design. From the results we conclude that a control structure could well serve in working environment. Because of its simplicity, this methodology is also able to extend directly to incorporate other control algorithms.
Wang, Yu-Hsiang y 王譽翔. "Design of 2DOF Object-Tracking Control". Thesis, 2006. http://ndltd.ncl.edu.tw/handle/41865796473578658691.
Texto completo中原大學
機械工程研究所
94
In this thesis, the primary target is to design a capable following control method implemented on the associated robotic-manipulator system for load/unload process of the electro-plating system in IC packaging application. Servo motor is employed for each axis of the manipulator system. The cogging force generated during of motor and the phase lag apparent in closed-loop system affect the motion velocity and positioning precision. Therefore, a disturbance observer is designed in the velocity loop of the control system to reduce the effect of cogging force. Besides, a PD controller in the position loop is designed for an asymptotically stable system. Since the high-frequency cogging force can not be rejected effectively by the disturbance observer alone, and causes a chattering phenomenon, a repetitive controller is considered to enhance the performance of disturbance rejection. For the phase lag rejection, a zero phase error tracking controller is added as a feedforward controller in the feedback control system. Such a control system is robust to disturbance and efficient to reduction phase lag so as to have better tracking performance. For practical load/unload application in the electro-plating system, the positioning error needs to be less than 100μm at the motor speed of 3000rpm. From the experimental data, the developed system is able to achive the purpose of disturbance rejection and phase lag rejection, and the positioning error is less than 10μm under the operating speed of 3000 rpm, which outperforms the desired accurcy.
Chang, Shu-Min y 張樹銘. "Implementation of High Speed Tracking Control". Thesis, 2000. http://ndltd.ncl.edu.tw/handle/63811824966071188219.
Texto completo國立中山大學
機械工程學系研究所
88
As the electronic products are getting more and more small, the trend of the needs for speed and accuracy is more precise. Therefore, upgrading the speed and the accuracy of contour error on tracking control has become an important point. This research is focus on the improving of contour error and terminus error. In the contour error, we design the acceleration /deceleration profile based on digital FIR filter. And then remodel the compensatory method of cross-coupled controller, making the design of controller parameter easier, and getting better efficiency. And further, we get the time-variable gain by curve of contour error, making the accuracy better. In terminus error, according to two-step control, we switch the controller in deceleration region, not only directly improving the terminus error, but also improving the contour error. Finally, the above improved strategies are verified by the simulation and experimental results.
Cheng, Chih-Hsien y 鄭志先. "Tracking Control of Electro-Hydraulic System". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/83761902657725486395.
Texto completo國立高雄應用科技大學
機械與精密工程研究所
97
This thesis presents the derivation, and simulation of a nonlinear tracking control for an electro-hydraulic system, as these devises must often follow prescribed motions. An analysis of nonlinear system equation is used in the derivation of a singular perturbed function that provides for exponentially stable force trajectory tracking. This control law is extended to provide position tracking, and employed hydraulic fluid bulk modulus a difficult to characterize quantity as a parameter. To overcome the difficulty, we have developed a controller design procedure that required no additional sensors, and is robust to variations in the bulk modulus. A dual approach of singular perturbation theory and Lyapunov techniques from the basis for the procedure. The simulation results show that the proposed derivation singular perturbed function and controller design will track a given smooth trajectory with small error.
Lu, Chen y 呂戰. "Tracking Control of Remotely Operated Vehicle". Thesis, 1997. http://ndltd.ncl.edu.tw/handle/21976863067085421181.
Texto completo國立海洋大學
機械與輪機工程學系
85
Dynamics of a Remotely Operated Vehicle (R.O.V.) propelled by a pair of -ters and rudders for plannar motion and a pair of thrusters in the verticaldirection is described. To achieve tracking control,fuzzy controllers were pro-posed for motion control and a bearing-only method based on Modified Polar coor- dinate was used for position estimation. Simulation was conducted to verify thefeasibility of this closed loop control algorithem. Based on the assumption that the roll and pith motions are negligible, theplannar motion and the vertical motion are decoupled. Fuzzy controllers were designed for the plannar and the vertical motions, respectively. The plannar motion control was further divided into thruster control and rudder control. Position and velocity errors between R.O.V. and the moving reference input were used for thruster cintrol. Bearing angle difference between R.O.V. heading and the moving direction of reference input was used for rudder control. To simplify the under-water position estimation, a bearing-only trackingtechnique was employed. The conditions for observability of this observer weresummaried
Yao, Kun-Ciang y 姚焜強. "Lean Production Tracking and Control System". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/75806448158641904541.
Texto completo國立雲林科技大學
工業工程與管理研究所碩士班
101
Lean Production and push production are two major manufacturing types, but lean production cannot employ push systems directly because of the fundamental differences in planning philosophy. Push production representative systems is enterprise resource planning system (ERP) system, it can control production, finance and other function of the management cycle. Lean production emphasizes jidoka and visual management, and information transmission is by kanban and operators. Mostly information systems are manufacturers'' individual development. So lean production for computerization slower than push production. Some manufacturers choose to push production, it because of information technology. The purpose of this research is to discuss the combination of push and lean systems in the context of enterprise resource planning system (ERP). We developed a lean shop floor tracking and rooted it in an ERP, so ERP can apply to both push and lean industries. This system can be better by two function, the first can using genetic algorithm plan to number of kanban, another can getting performance for shipping planning by simulation. We present a solar-photonics silicon-cell case study to demonstrate the combination, and planning number of kanban. Four conclusions are drawn from this research: (1) push and lean production can be well managed in an ERP system simultaneously with an extended design, (2) Lean shop floor tracking system and ERP can benefit the lean industries by fast computerization to improve its operations, and benefit the current ERP users by offering an option to change to lean production, partially or overall, to gain the capability of responding to markets quickly, (3) Lean shop floor tracking system combines lean simulation system function and parameter optimization to improve the feasibility of the implementation of lean production, (4) ERP vendors will have the opportunity to enter the Lean Enterprise, opening up new applications.
I-ChenLin y 林宜臻. "Age-related differences in dynamic force control: pursuit tracking and compensatory tracking". Thesis, 2017. http://ndltd.ncl.edu.tw/handle/qzss6s.
Texto completo國立成功大學
物理治療學系
105
Objective: There are two major forms of visuomotor tracking, compensatory and pursuit tracking. The former tracking is to counter virtual perturbation in need of closed-loop control, while the later entails to couple movement output to a moving target with a predictable trajectory. Central processing of visual feedback have been proved to degenerate with aging that causes changes in structure of movement variability. The age-related changes in force behaviors reflect a selective decline in the feedback and feedforward processes for force control with aging. The purpose of the present study was to investigate the age-related differences in force fluctuation properties between the conditions of compensatory tracking and pursuit tracking. Methods: 17 young health adults (23.0 ± 2.3) and 17 older health adults (68.4 ± 7.3) participated in the study. All participants were required to exert a load-varying isometric force to couple 0.2 Hz sinusoidal target wave in the range of 9%–11% MVC of index abduction of right first dorsal interosseus in pursuit tracking. The participants stabilized the target movement on the monitor at a constant level of 10% MVC, by resisting sinusoidal virtual perturbation during compensatory tracking. Normalized changes in force behaviors and force fluctuation properties between compensatory tracking and pursuit tracking for the two populations were contrasted. Results: The results of the study indicated that normalized difference in force fluctuations of the older adults was significantly greater than that of the young adults. In addition, the normalized difference in SampEn of the older adults was significantly greater than that of the young adults. Other force fluctuation properties in ratio of residual power, task error, correlation between the target and force trajectory and peak amplitude did not significantly differ with the older and the young adults. Conclusions: In summary, older adults had more force variability in visuomotor tasks by virtue of the differential age effect on force characteristics for the two tracking patterns. The greater normalized change in the size of force fluctuations for the elderly indicated the elderly were more variable in force control than young adults, when tracking task shifts from pursuit modes to compensatory mode. In addition, the less normalized change in the complexity of force fluctuations for the aged symbolized the aged exhibited a more regular force fluctuations than the young, when tracking task shifts from compensatory modes to pursuit modes. Thus, the provision of feedback-based visuomotor practice to the elderly should be aware of the fact that degenerative changes in feedback control could destabilize force output with less strategic richness for a visuomotor task.
You, Sheng-Jhong y 游昇忠. "Visual Trajectory Tracking Control of Quadrotor Using Fuzzy Control Method". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/48385833916494899615.
Texto completo國立宜蘭大學
機械與機電工程學系碩士班
103
The purpose of this study is to design a quadrotor’s control system, which is able to autonomously adjust the attitude and track the position of the quadrotor. The control system is composed of three parts: the attitude controller, the image recognition system and the position controller. The attitude controller is designed to automatically correct the flight angle of quadrotor with disturbance. Inertial Measurement Unit (IMU) is employed to measure the current flight attitude, and a PID controller is designed to control the motor speed so that the flight angle of quadrotor can be automatically corrected. For easy operations, a bluetooth user interface is utilized to determine parameter value and to remote control via a cell phone. In the image recognition system, the images captured using color CCD camera through DT-Acquire Card in the computer are converted into grayscale and binarization, and the noises are eliminated through erosion and dilation. Finally, the actual locations of the target are obtained. The Fuzzy Logic toolbox of Matlab / Simulink is utilized to design a PD fuzzy controller. The PD’s parameters are adjusted according to the position errors and the changing rate of the errors to complete the fixed-point tracking of the quadrotor.