检索结果-内蒙古大学图书馆

38th IEEE Region 10 Conference, TENCON 2023

作者： Areerob, Punyapat Sum, Rithea Khongprasongsiri, Chanon Boonto, Sudchai King Mongkut's University of Technology Thonburi Department of Control System and Instrumentation Engineering Bangkok10140 Thailand National Astronomical Research Institute Thailand

ISBN: (纸本)9798350302196

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. © 2023 IEEE.

关键词： Convolution

来源：评论

学校读者我要写书评

暂无评论

Modeling Dynamic Frequency control with Power Reserve Limitations 53

Modeling Dynamic Frequency Control with Power Reserve Limita...

引用

53rd International Universities Power engineering Conference, UPEC 2018

作者： Minh Trang, Le Thi Nouri, Hassan Department of Instrumentation and Control Engineering Czech Technical University in Prague Prague Czech Republic Power System Electronics and Control Research Laboratory University of West of England Bristol United Kingdom

ISBN: (纸本)9781538629109

The frequency variation of a power system depends on the relationship between power generation and consumption. Increase in loads, losses or inclusion of renewable energies will lead to inaccurate controllability of the network frequency, which is the result of consumption-generation imbalance. If this imbalance is high, damage and degradation of network performance, as well as trips of loads and generators is inevitable. In modern grids attention is given to the amount of power supplied to satisfy the loads and system losses and also for reserve services. The latter provides security and stability of the *** control is usually provided by generating units to regulate the generated power. In modern networks such as smart grids, the power reserve concepts are used via three different technologies, namely: Frequency Containment Reserves (FCR), Frequency Restoration Reserves (FRR) and Replacement Reserves (RR). In some countries such as Denmark and Norway, it is compulsory for FCR to be implemented in the network. The FCR is operating the reserves necessary for constant containment of frequency deviations from nominal value in order to constantly maintain the power balance in the whole synchronously interconnected system. Compared with traditional reserves, the FCR can deliver the same service plus the additional benefit of faster response speed in *** paper proposes a dynamic simulation model of an interconnected network to identify frequency responses based on current practice in power systems frequency control. The dynamic frequency response identification method is deployed in two steps: the first step is the representation of the dynamic models of the power system through the power equilibrium equation and in the second step, modelling the frequency control system in response to the frequency variations, which consider FCR technology. Simulations are carried out in MATLAB/SIMULINK and the simulation studies of the frequency responses confirm

关键词： MATLAB

来源：评论

学校读者我要写书评

暂无评论

Fuzzy Logic Based Autonomous Parallel Parking system with Kalman Filtering

引用

SICE Journal of control, Measurement, and system Integration 2010年第4期3卷 266-271页

作者： Benjamas Panomruttanarug Kohji Higuchi Department of Control System and Instrumentation Engineering King Mongkuts University of Technology Thonburi Department of Electronic Engineering University of Electro-Communications

This paper presents an emulation of fuzzy logic control schemes for an autonomous parallel parking system in a backward maneuver. There are four infrared sensors sending the distance data to a microcontroller for generating an obstacle-free parking path. Two of them mounted on the front and rear 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 processes, the vehicle will be in line with other parked cars and positioned in the middle of the free space. Fuzzy rules are designed based upon a wall following process. Performance of the infrared sensors is improved using Kalman filtering. The design method needs extra information from ultrasonic sensors. Starting from modeling the ultrasonic sensor in 1-D state space forms, one makes use of the infrared sensor as a measurement to update the predicted values. Experimental results demonstrate the effectiveness of sensor improvement.

关键词： parallel parking fuzzy logic wall following Kalman filtering

来源：评论

学校读者我要写书评

暂无评论

Design of a Gough-Stewart platform for micro-surgical operations

Design of a Gough-Stewart platform for micro-surgical operat...

引用

2011 IEEE/SICE International Symposium on system Integration, SII 2011

作者： Kim, Sung Mok Lim, Hoon Cheong, Joono Yi, Byung Ju Kim, Whee Kuk Korea University Chochiwon Korea Republic of Hanyang University Ansan Korea Republic of Department of Control and Instrumentation Engineering Korea University Chochiwon Korea Republic of Department of Electronics System Engineering Hanyang University Ansan Korea Republic of

ISBN: (纸本)9781457715235

In general, optimal design for the mechanism such as Gough-Stewart Platform (GSP) does not take into account practical factors of the mechanism such as its component weight and size, and mechanical interferences among them, etc. Particularly, in designing a robot module for micro-surgical operations which would be mounted at the end of a macro manipulator, its light weight, compactness, as well as good kinematic performance are important design aspects that should be considered. In this paper, design of a compact GSP module incorporating additional practical design factors such as mechanical interferences among mechanism components is discussed. A modified design for micro-surgical operations which requires a small operation region represented as a nominal operation point is suggested and it is shown that its performance exceeds one of the typical GSP design under the given practical component limitations such as actual length of active prismatic joints. © 2011 IEEE.

关键词： Mechanisms

来源：评论

学校读者我要写书评

暂无评论

Ultrasonic inspection system for detecting small flaws at far surface of steel plate

Ultrasonic inspection system for detecting small flaws at fa...

引用

7th Annual International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2010

作者： Vilasmongkolchai, T. Noipitak, M. Kaewtrakulpong, P. Prateepasen, A. Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Thungkru Bangkok 10140 Thailand Department of Production Engineering King Mongkut's University of Technology Thonburi Thungkru Bangkok 10140 Thailand

ISBN: (纸本)9789746724913

This paper presents the development of inspection system using ultrasonic for steel plate manufacturing. Generally, internal defects in the final product of steel plate are inspected manually by human operators, which is a time consuming process. In this research, the crystal of an ultrasonic probe at natural frequency suitable for steel plate examination was developed. In our design, high sensitivity (i.e. high signal peak amplitude) and good resolution were achieved using a (water coupling) probe structure, without ceramic wear plate, and a signal processing called the 1-bit technique. Backing material of the probe was carefully designed and experimented to obtain proper impedance matching with the probe's crystal by varying its material composition. Jig with a dual-probe support to speed up the inspection of a steel plate was implemented. Moreover, the 1-bit technique was applied to improve resolution of the inspection and to detect small flaws close to the far surface of the steel plate. The developed probe has more sensitivity than that of commercial probes in terms of frequency response. The 1-bit processing technique has been realized and simulated and it showed advantages over the conventional method for processing time and accuracy.

关键词： Probes

来源：评论

学校读者我要写书评

暂无评论

Modern development of low cost RT industrial process control based on matlab-simulink and PAC

Modern development of low cost RT industrial process control...

引用

作者： Tutsch, Michal Konarik, Petr Department of Measurement and Control Faculty of Electrical Engineering and Computer Science VSB - Teclmical University of Ostrava Ostrava Czech Republic Department of Control System and Instrumentation Faculty of Mechanical Engineering VSB - Teclmical University of Ostrava Ostrava Czech Republic

ISBN: (纸本)9781424473359

The paper presents modern advanced development methods of control systems that minimizes the cost of development of applications which are widely applicable in industrial control of whole range of processes. Unlike the classical way of design and testing control algorithms which are based on expensive RT measurement cards or dSpace, this solution is based on industrial controllers WinPLC/WinPAC. This enables so called rapid-prototyping of control algorithms directly from Matlab-Simulink into target platform. It was used muItiplatform control system REX as a bridge between Matlab and the target platform. The paper describes whole design of control algorithms and control schemes, simulation of prepared schemes, uploading control schemes into target platform of WinPLC. Also possibilities of remote data transfer and data storage are mentioned. The real measurement on hydraulic industrial system proved its limits that were also explained in this paper.

关键词： Simulink

来源：评论

学校读者我要写书评

暂无评论

Outdoor vehicle and shadow segmentation by temporal edge density information of adjacent frames

Outdoor vehicle and shadow segmentation by temporal edge den...

引用

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

作者： Chanchai Techawatcharapaikul Pakorn Kaewtrakulpong Supakorn Siddhichai Department of Computer Engineering Thailand Department of Instrumentation and Control System Engineering Facaulty of Engineering King Mongkut's University of Technology Bangkok Thailand National Electronics and Computer Technology Center NECTEC Pathum Thani Thailand

The problem of vehicle detection and segmentation in outdoor scenes is tackled. Vehicle shadows pose problems in vehicle segmentation step. In this paper, it is proposed to employ temporal edge density information as prior knowledge to distinguish moving vehicle from moving shadow and background in a traffic surveillance system. Experimental results showed good moving vehicle segmentation performance. The proposed approach is currently limited to free-flowing traffic scenes.

关键词： Image edge detection Vehicles Image color analysis Image segmentation Pixel Accuracy Computer integrated manufacturing

来源：评论

学校读者我要写书评

暂无评论

A High Speed Autofocusing system for Micro system Applications

引用

电子科学学刊（英文版） 2016年第1期14卷 73-79页

作者： Phuchong Sripolsaen Pradit Mittrapiyanuruk Pakorn Keawtrakulpong the Deptartment of Control System and Instrumentation Engineering Faculty of Engineering King Mongkut’s University of Technology Thonburi KMUTT Bangkok 10140 Thailand the Department of Mathematics Faculty of Science Srinakharinwirot University Bangkok 10110 Thailand the Department of Control System and Instrumentation Engineering Faculty of Engineering KMUTT Bangkok 10140 Thailand

来源：评论

学校读者我要写书评

暂无评论

Simple on-line observation and compensation of dead-time effects

Simple on-line observation and compensation of dead-time eff...

引用

14th International Conference on Railway engineering Design and Optimization, COMPRAIL 2014

作者： Jung, S.M. Park, C.B. Kim, J.H. Lee, S.H. Kim, H.W. Advanced Traction and Noncontact Feeding System Research Team Korea Railroad Research Institute Korea Republic of Department of Control and Instrumentation Engineering Korea National University of Transportation Korea Republic of

ISBN: (纸本)9781845647667

Generally, there exist voltage differences between the voltage commands and the output voltages of the three-phase pulse-width modulated (PWM) voltage-source inverter (VSI), which are caused by the intended dead-time to prevent the armshort of a leg and the nonlinearities of switching devices. These voltage differences (or voltage distortion) affect the current distortion, torque pulsations, and degradation of control performances. To overcome these drawbacks, a simple and low-cost observation and compensation method of the voltage distortion is proposed. The proposed method is employing model reference adaptive system (MRAS) techniques and does not require any additional hardware circuits such as voltage sensors. The voltage distortions caused by the nonlinearities of the switching devices are estimated by a voltage distortion observer which is based on the electrical model of the PMSM. And the estimated voltage distortions are fed-forward to compensate the voltage commands. In comparison with the previous existing methods, the proposed method has a simple structure and good performances. Also, it can be implemented without any extra devices such as voltage sensors and the computing effort is very small. The execution of the algorithm can be easily embedded in the existing systems without major modification. To show the effectiveness of the proposed method, the experiments are carried out for the digitally controlled PMSM drive system. The experimental results verify the validity of the proposed method and show that the proposed method gives good performance and practical value. © 2014 WIT Press.

关键词： Electric inverters

来源：评论

学校读者我要写书评

暂无评论

Vessel segmentation in retinal images using graph-theoretical vessel tracking

Vessel segmentation in retinal images using graph-theoretica...

引用

12th IAPR Conference on Machine Vision Applications, MVA 2011

作者： Rattathanapad, Suthit Uyyanonvara, Bunyarit Mittrapiyanuruk, Pradit Kaewtrakulpong, Pakorn Department of ICT Sirindhorn International Institute of Technology Thammasat University Thailand Department of Mathematics SrinakharinWirot University Thailand Department of Instrumentation and Control System Engineering King Mongkut's University of Technology Thonburi Thailand

ISBN: (纸本)9784901122115

This paper presents a method for automatic segmentation of blood vessels in retinal images. The method is based on vessel tracking technique. The key idea of the method is that first a set of seed points (center of vessel cross sections) is extracted. Then, the seed points are connected to establish the vessel skeleton. Finally, the false vessel point are rejected by resorting to a hypothesis-verificaton based procedure. The major contribution of this work is that we formulate the step of seed point connection in the form of graph-theoretical shortest path problem. Then we apply the Dijkstra's algorithm to solve the problem. The performance of our method evaluated on the publicly available DRIVE database shows promising results.

关键词： Blood vessels

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：