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International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology

作者： Pakorn Chottiyanont Mongkol Konghirun Wanchak Lenwari Department of Electrical Engineering King Mongkut's University of Technology Thonburi Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi

ISBN: (纸本)9781479929948

In recent years, the development of the electrical vehicle (EV) in particular the performance enhancement of speed control has been widely attention. To ensure fast dynamic response and stable operation, the design of speed controller is critical and requires considerable effort. This paper proposes an automated design employed genetic algorithm (GA) to optimize PI speed controller of interior permanent magnet synchronous motor (IPMSM) used in the EV. The drive control system is designed on the basis of vector control scheme incorporated with the maximum torque per ampere (MTPA) control strategy to improve the drive performance. The optimization method provides an optimum solution in terms of both speed response and steady-state error. The simulation results verify the effectiveness of the proposed approach.

关键词： Genetic algorithm (GA) MTPA IPMSM Electric vehicle (EV)

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Implementation of 3D Shape Matching for EV Charging Connector

Implementation of 3D Shape Matching for EV Charging Connecto...

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SICE Annual Conference

作者： Pai Chuaychoo Benjamas Panomruttanarug Mario Hirz Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand Institute of Automotive Engineering Graz University of Technolog Graz Austria

A shape feature is commonly chosen for matching an object with a template model in a vision-based design. A 3D shape matching technique is presented in this work to localize an EV charging connector. To perform the matching, a 3D model of the connector is firstly created and then used as a template to compare with images captured from different camera locations. This process is carried out by placing the camera around the fixed location with a fixed pose of the connector. To evaluate an effectiveness of matching, a white and black background are used to study a robustness to illumination changes. The results display some errors from using the white and black backgrounds in the Cartesian coordinate.

关键词： Connectors Solid modeling Three-dimensional displays Runtime Shape Shape measurement Measurement uncertainty

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Failure Detection from the Knocking Sounds Using Convolutional Neural Network

Failure Detection from the Knocking Sounds Using Convolution...

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IEEE Region 10 International Conference TENCON

作者： Punyapat Areerob Rithea Sum Chanon Khongprasongsiri Sudchai Boonto Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand National Astronomical Research Institute Thailand

Toilet quality assurance is a crucial process in ensuring lavatories meet rigorous performance, durability, and hygiene standards. The current standard of Maximum Performance (MaP) testing faces challenges, leading researchers to explore innovative approaches such as sound source classification for quality assurance. This approach involves collecting a diverse dataset of lavatory sounds and extracting relevant acoustic features. Deep learning models, particularly convolutional neural networks (CNNs), are trained on these features to accurately classify sound sources. The trained models were evaluated and compared by considering metrics such as classification accuracy, computational complexity, and model parameters. This paper performs these tests and chooses the most effective model to enhance the quality assurance process for toilets. Incorporating sound source classification techniques has several benefits, including the optimization of testing processes, non-intrusive performance assessment, and efficient resource utilization through targeted testing and troubleshooting. By improving the standards of lavatory quality, this approach ensures enhanced performance, durability, and hygiene of lavatories.

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Fault Tolerant Localization Based on K-means Clustering in Wireless Sensor Networks

Fault Tolerant Localization Based on K-means Clustering in W...

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IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT)

作者： Soumya J Bhat K V Santhosh Department of Instrumentation and Control Engineering Centre for Cyber Physical System Manipal Institute of Technology Manipal Academy of Higher Education (MAHE) Manipal India

ISBN: (数字)9781728168289

ISBN: (纸本)9781728168296

Wireless Sensor Network (WSN) has been considered as an essential tool for many applications. Most of the applications of WSNs require the location of sensor nodes to be known. But, because of high power consumption and cost, it is not suitable to attach a GPS receiver with every node. For estimating the location of sensor nodes, localization algorithms make use of few location-aware nodes as reference nodes. But, sometimes, these reference nodes can turn faulty. They may estimate their locations wrongly due to software or hardware malfunctions. This affects the localization of the entire network. To overcome this problem, we have reported a fault tolerant localization algorithm called clustering based DV-Hop. This algorithm filters out faulty nodes using K-means clustering and majority voting methods. The performance of the algorithm is then compared with other localization algorithms. The reported algorithm shows better localization accuracies and more stable performance under faulty conditions.

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Recent Computerized Power Generation Plant Automation and Advanced Man-Machine Interface system

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IFAC Proceedings Volumes 1977年第1期10卷 16-20页

作者： K. Fujii N. Takeda Y. Kogure T. Neda H. Kawahara M. Abe Power Generation Control System Engineering Tokyo Shibaura Electric Co. Ltd Fuchu Works Tokyo Japan Control and Instrumentation Department Power Tokyo Shibaura Electric Co. Ltd Tokyo Japan

This paper presents a description of recent computerized power generation plant automation and advanced man-machine interface systems. The automation software system is called COPOS (Computerized Optimum Plant Operation system), and the advanced man-machine interface software system is called PODIA (Plant Operation by Displayed Information and Automation). The authors describe, first of all, practical methods applied to the full automation of a fossil fired power plant by COPOS. For example, there is the fundamental philosophy of plant operation phases separation, sub-control systems separation, modes separation and WCD (Work control Drive). Also described is the COPOS software system, which features the problem oriented language (FILL IN BLANKS) called PLANT TABLES. Lastly, the authors describe the development of the displayed control panel, which makes effective use of many graphic color CRTs for advanced man-machine interface. The fundamental philosophy described in the paper is throughly useful and applicable to other process plants

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Mathematical Modeling of the Impact of a 5 Day Interim Relaxation at 21 Days in 42 days Lockdown Strategy on COVID-19 Transmission in India 10

Mathematical Modeling of the Impact of a 5 Day Interim Relax...

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10th International Conference on Biosignals, Images and instrumentation, ICBSII 2024

作者： Immaculyne, Flavia Bakiyaambikapathy Krishnamurthy, Kamalanand De Britto, Lourduraj Benoi Cresent Schlumberger- Reda Production System Singapore Vel Tech Rangarajan Dr Sagunthala R&d Institute of Science and Technology Department of Electronics and Communication Engineering Chennai India Anna University Department of Instrumentation Engineering MIT Campus Chennai India Vector Control Research Centre Indian Council of Medical Research Puducherry India

ISBN: (纸本)9798350350951

As of the first week of May 2020, the COVID-19 pandemic is present in 212 nations globally. Many countries have enforced lockdown measures strategically to slow down the epidemic's spread, with the objective of relieving pressure on healthcare systems. Mathematical modelling serves as a useful tool for the prediction of the future numbers of the infected population and for analyzing the effects of various intervention strategies. In this work, a mathematical model based on ordinary differential equations has been developed for analyzing the impact of an interim relaxation of 5 days at 21 days in a 42 days lockdown period. Results of the simulation demonstrate that the relaxation of 5 days during the 42 days lockdown does not result in any adverse effects if the transmission rate remains the same. However, the model-based analysis suggests that an increase in the transmission rate by a factor of 1.2 times during the relaxation period due to the possible aggregation of the susceptible with the infected, it could shift the growth pattern of infected cases from sub-exponential to exponential. © 2024 IEEE.

关键词： COVID-19

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An emulation of autonomous parallel parking system using fuzzy logic control

An emulation of autonomous parallel parking system using fuz...

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SICE Annual Conference

作者： Benjamas Panomruttanarug Sarayut Tungporntawee Parnupong Thongsuk Kohji Higuchi Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand Department of Electronic Engineering University of Electro-Communications Tokyo Japan

This paper represents an emulation of fuzzy logic control schemes in autonomous parallel parking system in a backward maneuver. There are four infrared sensors sending distance data to microcontroller for generating an obstacle-free parking path. Two of them mounted on the front and rare wheels on the parking side are used as the inputs to the fuzzy rules to calculate a proper steering angle while backing. The other two attached to the front and rear ends serve for avoiding collision with other cars along the parking space. At the end of parking process, the vehicle will be in line with other parked cars and position in the middle of the free space. A construction of fuzzy rules is designed based upon a wall following process. The effectiveness of the controller design is demonstrated in the experimental results.

关键词： Emulation Fuzzy logic control systems Space vehicles Infrared sensors Wheels Path planning Microcontrollers Technological innovation Safety

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Flight schedule creating based on mathematical model 15

Flight schedule creating based on mathematical model

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15th Conference on Applied Mathematics 2016, APLIMAT 2016

作者： Jelen, Tomasz Teichmann, Dušan VŠB - Technical University of Ostrava Department of Control System and Instrumentation Faculty of Mechanical Engineering 17. listopadu 15 Ostrava - Poruba708 33 Czech Republic VŠB - Technical University of Ostrava Institute of Transport Faculty of Mechanical Engineering 17. listopadu 15 Ostrava - Poruba708 33 Czech Republic

ISBN: (纸本)9788022745314

The article deals with the exact approach convenient for flight schedule creating offering regular airline transportation service. The proposed exact approach is based on linear mathematical model. Out of the specified expected demand linkset the model is designed to select particular subset maximum aircraft fleet utilization. The model results represent optimal connection network at defined time periods. The arithmetical experiments have been carried out on model examples.

关键词： Air transportation

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A comparative study of two high performance current control techniques for three-phase shunt active power filters

A comparative study of two high performance current control ...

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International Conference on Power Electronics and Drive systems (PEDS)

作者： Wanchak Lenwari Milijana Odavic Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand Department of Electrical and Electronic Engineering University of Nottingham Nottingham UK

In recent years, the increase of non-linear loads in electrical power system has sparked the research in power quality issue. The shunt active power filter (SAPF) is a power electronic device which has been developed to improve power quality. The current control of shunt power filters is critical since poor control can reinforce existing harmonic problems. Various control strategies have been proposed by many researchers. In this paper, a comparative evaluation of the performance of two current control techniques, resonant and predictive controller, is presented with identical system specification. The design procedure and principle of both current control methods are also presented in detail. Simulation results show the comparison of transient response, steady state control and performance in the presence of variation of supply impedance between two control techniques.

关键词： Current control Active filters Electric current control Power system harmonics Power harmonic filters Power quality Power electronics Power filters Resonance control systems

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Automatic Ruler Scale Calibration using a Rotary Machine

Automatic Ruler Scale Calibration using a Rotary Machine

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5th International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON 2008), vol.2

作者： Suricha Kraiprawes Anusorn Tonmueanwai Poj Tangamchit Department of Control System and Instrumentation Engineering Faculty of Engineering King Mongkut's University of Technology Bangkok Thailand National Institute of Metrology Thailand Pathum Thani Thailand

We combined a rotary machine with a reflecting optical sensor to built a machine that automatically calibrate ruler scales. The optical sensor is mounted on a linear motion rail along the ruler scales It identifies the marked lines on a metal ruler by detecting reflecting light intensity from the lines. Our system then finds distances between lines and counts the number of lines. The measured results were compared with the a reference length obtaining from an encoder of a precise stepping motor to measure the precision of the ruler scale. From the experiment results, the machine is shown to be capable of standard rulers grade 2 calibration. Lastly, the measurement uncertainty of the machine was analyzed.

关键词： Optical sensor Uncertainty

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