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A mathematical model is required to design the state feedback gains. Since, the mathematical model generally has uncertainty, the designed state feedback gains might not achieve the desired property. In such a case, the tuning method of the state feedback gains using experimental data has been proposed in order to obtain the desired property. However, this method cannot achieve the desired output...
This work presents a novel photovoltaic (PV) monitoring system based on the STM32F407VET6 microcontroller unit (MCU), which is designed solely using MATLAB/Simulink software. The proposed system features the functions of data acquisition (DAQ), montoring, evaluation, and warnimg developed on a printed circuit board (PCB). Not only irradiance but the cell temperature, voltage, and current of PV devices...
This paper deals with the driver design for Brushless DC Motor (BLDCM) by quasi-sinusoidal voltage source inverter with voltage space vector pulse width modulation (VSVPWM) technology. Traditionally, BLDCM is driven by six-step inverter with digital Hall sensor feedback, and has the property of trapezoidal back EMF. However, this paper presents an approach to generate a quasi-sinusoidal voltage source...
A hybrid coordinates federated filtering fusion algorithm with information feedback is developed for a passive maneuvering target tracking. The algorithm is designed to deal with angle-only measurements for accurately estimating the kinematic state components of target motion. The hierarchical architecture of the algorithm comprises a group of local processors and a global processor. In each local...
Due to the rapid development in semiconductor technology, MEMS (microelectromechanical system)-based sensors have been widely used in commercial and military applications. These sensors are characterized by their small size, low cost, low power consumption. However, MEMS sensors are noted for their low accuracy, limiting the applicability in high precision navigation and control. In this paper, a...
Sheet metal bending is a common task in industry manufacturing. Traditionally, a sheet metal is slightly held by a human operator when it is being bent. However, due to shortage of human workers, the bending process is replaced by a robotic system. To have a smooth bending process, a robot system is required to follow the sheet metal while it is being bent and immediately grasp it while the bending...
In this paper, the problem of finite-time observer synthesis for linear systems with external disturbances is investigated. A new algorithm to the design of robust observer scheme is proposed and the respective observer gains are obtained. Existence conditions of finite-time observer are derived and a systematic algorithm for obtaining robust observers which guarantee the error convergence of the...
This paper presents design of state-feedback quadratic regulator for polynomial systems. Design criteria are comprised of a quadratic cost and bounded magnitudes of control input. Specifically, we formulate a control synthesis of closed-loop systems operated in a given bounded domain characterized by a semi-algebraic set. When considering a suitable class of rational Lyapunov functions, we derive...
This paper presents an headphone ANC system with dual feedback control. It consisted of a speaker, two microphones, and two controllers to attenuate the ambient noise at microphone. The benefit of two controllers is that the control performance and stability of the system are improved. The lack of single controller can be compensated by another controller. Since the two feedback controllers affect...
To overcome the limitations of payload and flight endurance, a hybrid powered multi-rotor system is designed by dual systems which include engine-driven quad-rotor and motor-driven quadrotor. The proposed multi-rotor system is named Quad-in-Quad (QiQ) system. Since the characteristic of high thrust, engine takes in charge of major lift of the system. To provide stable lift, microprocessor control...
Galvanometer scanner (GVS) is a versatile instrument in the modern engineering fields. One of the important applications is to realize the laser scanning confocal microscope. Such inspection tool usually needs an affine signal to be its scanning trajectory like triangular waveform or sinusoidal signal. However, there still exists some problems such as temperature variation and time delay in GVS system,...
In recent years, face detection is widely used in various fields, such as face recognition, image focusing, and surveillance systems. This study proposes a real-time face detection system based on naive Bayesian classifier using Field-programmable gate array(FPGA). The detection system divided into three main parts, feature extraction, candidate face detection, and false elimination. First, downscale...
The research aims to design and implement an automatic speech recognition and synthesis system. A TMS320C6713 DSK Board manufactured by Texas Instrument (TI) is adopted as the system operation platform to support independent development, and the MATLAB software is adopted as the operation platform of the speech synthesis system. Moreover, the two platforms are integrated by a human machine interface...
In this paper we provide an intelligent and convenient shopping cart, Intelligent Shopping Assistant System (ISAS). With ISAS, customers can concentrate on what he/she has to buy, and do not be bothered where he/she has to buy or it is want to buy. In contrast to conventional shopping cart, two modes of autonomous functions are added to ISAS in order to reduce the labor of customers for pushing goods...
In this study, we have generated four active commands using hybrid electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) for quadcopter control in online environment. Mental arithmetic, left hand clench imagery, and left and right eye-movements are used to navigate the quadcopter. Mental arithmetic task (decoded by fNIRS from the prefrontal cortex) is used to move the quadcopter...
A localization method for mobile sensor networks is presented in this paper. In order to reduce localization errors, the artificial bee colony (ABC) algorithm is used to refine the estimated coordinates. The fundamental concept of the ABC algorithm is to find better feasible solution (food source) from food sources in the specific space. Using the idea, this paper study integrates the ABC algorithm,...
A unified approach for reduced order modelling of fractional order system in the delta domain is presented in this paper. The delta operator modelling of Fractional Order System converges to its continuous-time counterparts as the sampling time approaches close to zero. A fractional order differentiator is approximated to a higher order rational transfer function using the method of Oustaloup approximation...
In this paper, a quick and accurate detection method is discussed. It can identify whether the meat contain excessive moisture. By using near-infrared spectroscopy measurement, the meat moisture content model has been established. In order to improve the accuracy of the near infrared (NIR) measurement predicted model and to reduce the measurement sensitivity, we utilized the hyperspectral image information...
In this paper, two nonlinear dynamic systems with distinct structures are designed for synchronization issue through the proposed fuzzy modeling strategy. The final output of the fuzzy-model-based system requires two linear subsystems to represent the motions of dynamic systems only. Consequently, combining with the mathematical tools, linear matrix inequality (LMI) and parallel distributed compensation...
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