2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)最新文献_第8页

An Ultra Low-Power RMS-to-DC Converter for Biomedical Application 一种用于生物医学应用的超低功耗rms - dc转换器

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153282

Pantree Khompittaya, K. Chooruang, Suttipat Srisuk

引用次数: 0

Development of Mobile Application for Thai Buddha Amulet Classification 泰佛护身符分类手机应用程序的开发

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153284

Pakorn Ubolkosold, Chaiyut Wuwanich, Tanawat Thuamthet, Sahussawat Kittiwatmethi, Phurit Duangmanee, Wongsakorn Jiraworapitak, Thummathus Boonlerd

引用次数: 0

Experimental Investigation of the Effect of Different Temperatures on Pressboard Impregnated with Transformer Oil-Based Nanofluids 不同温度对浸渍变压器油基纳米流体的压板影响的实验研究

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153231

Chinnapat Suriyasakulpong, Jirapong Jittrechao, Nutcha Chanvijit, Nattaphong Soobun, Kiattisak Chaosuan, Tanakorn Nuiphukhiao, Apichat Tubtimsai, P. Muangpratoom

{"title":"Experimental Investigation of the Effect of Different Temperatures on Pressboard Impregnated with Transformer Oil-Based Nanofluids","authors":"Chinnapat Suriyasakulpong, Jirapong Jittrechao, Nutcha Chanvijit, Nattaphong Soobun, Kiattisak Chaosuan, Tanakorn Nuiphukhiao, Apichat Tubtimsai, P. Muangpratoom","doi":"10.1109/ECTI-CON58255.2023.10153231","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153231","url":null,"abstract":"The purpose of this article is to study the effect of different temperatures on the clearing of dry pressboard insulation and compare the effects of different temperatures on the process of impregnating pressboard with transformer oil mixed with nanoparticles. In this research, a conducting magnetite ($Fe_{3}O_{4}$) nanoparticle with a size not exceeding 50 nm is selected, and the concentration of nanoparticles used in this research is 0.01% of the volume of transformer oil. In addition, Span 80 surfactants or emulsifiers have been selected to improve the compatibility of transformer oil mixed with nanoparticles. In this research article, the electrical properties of pressboard insulators are tested with an AC voltage and the lightning impulse voltage test on both the positive and negative poles according to international standards. The test results showed that by drying pressboard insulation at 105°C and then impregnating pressboard insulation in transformer oil mixed with nanoparticles at 80°C, the pressboard insulation was dielectrically strong for AC voltage and had the best lightning impulse voltage.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130347300","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

Recover Fractional Lévy Flight Bat Algorithm for Optimization in Artificial Neural Networks Model 人工神经网络模型优化中的恢复分数阶lsamvy飞行蝙蝠算法

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153205

S. Tiacharoen

{"title":"Recover Fractional Lévy Flight Bat Algorithm for Optimization in Artificial Neural Networks Model","authors":"S. Tiacharoen","doi":"10.1109/ECTI-CON58255.2023.10153205","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153205","url":null,"abstract":"The bat algorithm (BA) is a heuristic optimization method based on the loudness and the rate of ultrasonic bursts. It has been simulated bats use echolocation for foraging. It has been proven that this algorithm has a good ability to search for the global optimum, but it suffers from slow searching speed in the last iterations. This paper proposes a recover fractional Lévy flight bat algorithm (rFLFBA) to improve BA by adjusting the inertia weight of velocity update instead of fractional Lévy flight from fractional Lévy flight bat algorithm (FLFBA). rFLFBA is deployed as learning method for artificial neural networks (ANNs) to increase the efficiencies in avoiding the local minima problem and the slow convergence rate of bat algorithms. The results are compared with a Particle Swarm optimization and Gravitational Search Algorithm (PSOGSA), Grey Wolf optimizer (GWO), and FLFBA learning methods for ANNs. The resulting classification rate of ANNs trained with GWO, PSOGSA, and FLFBA is also examined. The simulation results show that rFLFBA better than GWO and PSOGSA for training ANNs in terms of convergence curve. It is also proven that an ANN trained with rFLFBA has better accuracy than one trained with FLFBA.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130845630","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

Implementation of Energy based Controller for Buck Boost Converter using FPAA 利用FPAA实现Buck升压变换器的能量控制器

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153195

Walarcheth Thongrailuck, Witthawas Pongyart

引用次数: 0

Combined Diffusion Adaptation on Adaptive Leaky Criterion and Orthogonal Gradient Algorithm 基于自适应泄漏准则和正交梯度算法的联合扩散自适应

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153328

S. Sitjongsataporn, Piyaporn Nurarak

引用次数: 0

Precision coordinate transformations for Thai national geodetic infrastructure 泰国国家大地测量基础设施的精确坐标变换

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153290

Korakod Butwong, Thayathip Thongtan, Kriengkrai Boonterm

{"title":"Precision coordinate transformations for Thai national geodetic infrastructure","authors":"Korakod Butwong, Thayathip Thongtan, Kriengkrai Boonterm","doi":"10.1109/ECTI-CON58255.2023.10153290","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153290","url":null,"abstract":"Ground station receivers or networks’ location uses different geodetic datums. The geodetic datum defines size and shape of the Earth model and origin of orientation of coordinate systems used to map the Earth. They are modified to converge to the International Terrestrial Reference Frame (ITRF). The Thailand geodetic reference frame has been maintained by the Royal Thai Survey Department (RTSD); currently, it is based on GNSS permanent networks. Precise orbit and clock solutions, earth orientation parameters and tropospheric gradients are applied as fixing parameters to estimate station positions using a network approach where all station coordinates are simultaneously adjusted; defined as a zero-order network. They are determined with respected to ITRF with centimetre precisions and accuracies. The shape of the Earth varies over time due to oceanic tides and plate movements. Changing are more gradually when earthquakes and volcanic eruptions happen. ITRF and other geodetic datums are changing continually; therefore, frame transformations are required. The latest adjusted coordinates are based on ITRF2005, 2008 and 2014 frame and velocities are set at the epoch 2008.83, 2013.81 and 2021.93 respectively. Constraints are cast in form of transformation parameters. The grid shift is then generated to transform from global coordinate systems to local geocentric reference frames. GNSS measurements obtained from another set of ground stations are used as check coordinates. Transformed coordinates are at 1 centimetre-level of accuracy both horizontally and vertically at 95 percent confidence level. Coordinate transformations can be applied to map Thailand based on one map on one datum policy.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123330782","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

Near Full Stroke Length Linear Range Enhancement Circuit for Linear Variable Differential Transformer (LVDT) 线性可变差动变压器(LVDT)近全行程线性范围增强电路

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153280

S. Wisetphanichkij

引用次数: 0

Comparison of Corrosion Segmentation Techniques on Oil and Gas Offshore Critical Assets 海上油气关键资产腐蚀分割技术比较

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153134

Satida Sookpong, Sasin Phimsiri, Teepakorn Tosawadi, Pakcheera Choppradit, V. Suttichaya, Chaitat Utintu, Ek Thamwiwatthana

{"title":"Comparison of Corrosion Segmentation Techniques on Oil and Gas Offshore Critical Assets","authors":"Satida Sookpong, Sasin Phimsiri, Teepakorn Tosawadi, Pakcheera Choppradit, V. Suttichaya, Chaitat Utintu, Ek Thamwiwatthana","doi":"10.1109/ECTI-CON58255.2023.10153134","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153134","url":null,"abstract":"Corrosion is one of the biggest problems that can lead to fatal disasters in the industry. Investigate corrosion and perform timely maintenance on the asset to prevent corrosion issues. However, the investigation of the inspector onsite can lead to a time-consuming and dangerous problem. For that reason, corrosion detection from offshore asset images is necessary. This paper proposes the implementation of a segmentation technique for automatically detecting corrosion damage on oil and gas offshore critical assets. We compare three semantic segmentation architectures, namely UNET, PSPNet, and vision transformer. The image data was collected by unmanned aerial vehicles (UAV). The experiment also compared the full-image dataset and sliced-image dataset with 512 × 512 pixels of the image. The results are calculated using the F1 score and IoU score of the predicted and annotated mask. The experiment shows that ViT-Adapter trained with a full-image dataset receives the best IoU score and F1 score, which are 0.8964 and 0.9451, respectively. However, the specialist inspector prefers the result from the slicing experiment since the slicing prediction offers a more precise corrosion mask.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125580363","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

Unscented Kalman Filter for State of Charge Estimation of Lithium Titanate Battery 无气味卡尔曼滤波在钛酸锂电池电量状态估计中的应用

2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) Pub Date : 2023-05-09 DOI: 10.1109/ECTI-CON58255.2023.10153143

Joshua Chun-Ken Dardchuntuk, D. Banjerdpongchai

引用次数: 1