Pub Date : 2020-06-01DOI: 10.1109/ECTI-CON49241.2020.9158333
Nattadet Vijaranakul, S. Jaiyen, Panu Srestasathiern, S. Lawawirojwong, Kulsawasd Jitkajornwanich
Since 2018 during the winter of every year (December - January), Thailand has been suffering from air pollution problems known as PM 2.5 toxic dust, affecting people’s daily lives especially in Bangkok and its metroplex. To cope with this problem, one of the traditional methods used is to implement physical air quality measurement devices at specific locations. Currently there are 21 stations across Bangkok and surrounding areas. Each station can assess air quality at the station point along with the given radius, meaning that areas far away from the station will not be assessed properly. In this paper, we propose a methodology that incorporates satellite images for air quality assessment with supervised machine learning techniques. Several classification models tested in this paper are Decision Tree, Naïve Bayes, k-Nearest Neighbors (kNN), Random Forest, and Gradient Boosting. From our experiments, the highest performance model is Random Forest that has averaged accuracy of 0.914, averaged precision of 0.89, averaged recall of 0.814 and averaged F-1 score of 0.84825.
{"title":"Air Quality Assessment Based on Landsat 8 Images Using Supervised Machine Learning Techniques","authors":"Nattadet Vijaranakul, S. Jaiyen, Panu Srestasathiern, S. Lawawirojwong, Kulsawasd Jitkajornwanich","doi":"10.1109/ECTI-CON49241.2020.9158333","DOIUrl":"https://doi.org/10.1109/ECTI-CON49241.2020.9158333","url":null,"abstract":"Since 2018 during the winter of every year (December - January), Thailand has been suffering from air pollution problems known as PM 2.5 toxic dust, affecting people’s daily lives especially in Bangkok and its metroplex. To cope with this problem, one of the traditional methods used is to implement physical air quality measurement devices at specific locations. Currently there are 21 stations across Bangkok and surrounding areas. Each station can assess air quality at the station point along with the given radius, meaning that areas far away from the station will not be assessed properly. In this paper, we propose a methodology that incorporates satellite images for air quality assessment with supervised machine learning techniques. Several classification models tested in this paper are Decision Tree, Naïve Bayes, k-Nearest Neighbors (kNN), Random Forest, and Gradient Boosting. From our experiments, the highest performance model is Random Forest that has averaged accuracy of 0.914, averaged precision of 0.89, averaged recall of 0.814 and averaged F-1 score of 0.84825.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131245977","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}
Screening for Alzheimer's disease is an important step in the effort to detect and inhibit the progress of Alzheimer’s disease. The purpose of this research is to develop an application for a clock drawing test which is often seen as a part of the Alzheimer’s screening tests such as the Montreal Cognitive Assessment (MoCA) test and the Clock Drawing Test (CDT). For our clock drawing testing, the full score is three points. The first point is from drawing the rounded contour. The second point is from drawing the clock numbers in the correct order. The third point is from drawing the clock hands correctly according to the test command. For the contour drawing and the clock hands drawing, a series of Image Processing techniques are used to check the roundness property of the contour and the shape of the clock hands. MNIST Classifier Model is used to detect the clock numbers and rule-based checking is then employed to give the score. During the evaluation, the application gives a score between 0 and 3 points, and this score is added up with the rest of the application. The results from 50 low-risk people showed that 74 percent of them received 3 points, 22 percent received 2 points and 4 percent received only 1 point.
{"title":"Alzheimer Screening using Drawing Test Scores","authors":"Subhorn Khonthapagdee, Sira Lownoppakul, Nattawit Chotchoey, Nuwee Wiwatwattana, Sophon Mongkolluksamee, V. Sa-Ing","doi":"10.1109/ecti-con49241.2020.9158244","DOIUrl":"https://doi.org/10.1109/ecti-con49241.2020.9158244","url":null,"abstract":"Screening for Alzheimer's disease is an important step in the effort to detect and inhibit the progress of Alzheimer’s disease. The purpose of this research is to develop an application for a clock drawing test which is often seen as a part of the Alzheimer’s screening tests such as the Montreal Cognitive Assessment (MoCA) test and the Clock Drawing Test (CDT). For our clock drawing testing, the full score is three points. The first point is from drawing the rounded contour. The second point is from drawing the clock numbers in the correct order. The third point is from drawing the clock hands correctly according to the test command. For the contour drawing and the clock hands drawing, a series of Image Processing techniques are used to check the roundness property of the contour and the shape of the clock hands. MNIST Classifier Model is used to detect the clock numbers and rule-based checking is then employed to give the score. During the evaluation, the application gives a score between 0 and 3 points, and this score is added up with the rest of the application. The results from 50 low-risk people showed that 74 percent of them received 3 points, 22 percent received 2 points and 4 percent received only 1 point.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132777795","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}
Pub Date : 2020-06-01DOI: 10.1109/ecti-con49241.2020.9158075
Siriruch Cheapanich, V. Kinnares, S. Dangeam
This paper presents the electric vehicle simulator that uses the speed control and torque of the machine to drive by defining the model of the road profile. Torque control for road profile is used for a DC machines and speed control is used for the another DC machine which drives wheels. Therefore, this research will show the effect of supply electricity to the load which determines the capacity of the battery. The result will be an indicator of the efficiency of this experiment to guide the development of electric vehicle charging systems in the future.
{"title":"ElectricVehicle Simulator Using DC Drives","authors":"Siriruch Cheapanich, V. Kinnares, S. Dangeam","doi":"10.1109/ecti-con49241.2020.9158075","DOIUrl":"https://doi.org/10.1109/ecti-con49241.2020.9158075","url":null,"abstract":"This paper presents the electric vehicle simulator that uses the speed control and torque of the machine to drive by defining the model of the road profile. Torque control for road profile is used for a DC machines and speed control is used for the another DC machine which drives wheels. Therefore, this research will show the effect of supply electricity to the load which determines the capacity of the battery. The result will be an indicator of the efficiency of this experiment to guide the development of electric vehicle charging systems in the future.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"45 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113989216","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}
Pub Date : 2020-06-01DOI: 10.1109/ECTI-CON49241.2020.9158271
Warathep Padungtin, V. Tarateeraseth
In this paper, an effectiveness of the classical method proposed by Clayton R. Paul [1]-[3] for estimating radiated electromagnetic interference (EMI) from measured common-mode currents for switching power supply as a noise source is evaluated. The proposed radiated EMI prediction method by Clayton R. Paul [1]-[3] is compared with the testing results in the standard anechoic chamber in order to verify its effectiveness. From the experimental results, it can be concluded that the procedure to predict the radiated EMI of proposed method by [1]-[3] is easy to follow, and it needs only the measured common-mode current using the high-frequency clamp-on current probe. Although, this method can be used as a guideline for radiated EMI prediction, the accuracy of this method needs to be improved.
本文评估了Clayton R. Paul[1]-[3]经典方法对作为噪声源的开关电源共模电流辐射电磁干扰(EMI)估计的有效性。将Clayton R. Paul提出的[1]-[3]辐射电磁干扰预测方法与标准暗室的测试结果进行了比较，验证了该方法的有效性。实验结果表明，采用[1]-[3]法预测辐射电磁干扰的步骤简单易行，只需利用高频钳位电流探头测量共模电流即可。虽然该方法可以作为辐射电磁干扰预测的指导，但其精度有待提高。
{"title":"A Study of Radiated EMI Predictions from Measured Common-mode Currents for Switching Power Supplies","authors":"Warathep Padungtin, V. Tarateeraseth","doi":"10.1109/ECTI-CON49241.2020.9158271","DOIUrl":"https://doi.org/10.1109/ECTI-CON49241.2020.9158271","url":null,"abstract":"In this paper, an effectiveness of the classical method proposed by Clayton R. Paul [1]-[3] for estimating radiated electromagnetic interference (EMI) from measured common-mode currents for switching power supply as a noise source is evaluated. The proposed radiated EMI prediction method by Clayton R. Paul [1]-[3] is compared with the testing results in the standard anechoic chamber in order to verify its effectiveness. From the experimental results, it can be concluded that the procedure to predict the radiated EMI of proposed method by [1]-[3] is easy to follow, and it needs only the measured common-mode current using the high-frequency clamp-on current probe. Although, this method can be used as a guideline for radiated EMI prediction, the accuracy of this method needs to be improved.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114425762","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}
Pub Date : 2020-06-01DOI: 10.1109/ecti-con49241.2020.9158092
B. Boonchu, W. Surakampontorn
A dual-output CMOS voltage squarer circuit has been proposed. The proposed circuit structure is based on the current squarer circuit core. The differential output OTA which is the combination of class-AB amplifier and is employed as current-to-voltage units in order to provide the squarer output in voltage form. The performances of the proposed squarer have been confirmed by circuit simulation employing 0.25 μm CMOS technology. Simulation results show that the circuit performs the squaring function under ±1.5 V power supply voltage and the static power consumption is less than 1.2 mW.
{"title":"Dual-Output CMOS Voltage Squarer Circuit","authors":"B. Boonchu, W. Surakampontorn","doi":"10.1109/ecti-con49241.2020.9158092","DOIUrl":"https://doi.org/10.1109/ecti-con49241.2020.9158092","url":null,"abstract":"A dual-output CMOS voltage squarer circuit has been proposed. The proposed circuit structure is based on the current squarer circuit core. The differential output OTA which is the combination of class-AB amplifier and is employed as current-to-voltage units in order to provide the squarer output in voltage form. The performances of the proposed squarer have been confirmed by circuit simulation employing 0.25 μm CMOS technology. Simulation results show that the circuit performs the squaring function under ±1.5 V power supply voltage and the static power consumption is less than 1.2 mW.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116369618","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}
Pub Date : 2020-06-01DOI: 10.1109/ecti-con49241.2020.9158212
Tanakorn Karode, Warodom Werapun
Today, the online review system cannot fully support the business since there are fraudulent activities inside. The companies that get low score reviews are induced to raise their score for the market competition capability by paying to the platform for deleting or editing the posted reviews. Moreover, the automatic filtration system of a platform removes some reviews without the awareness of the users. The low transparency platform causes low credibility toward the reviews. Blockchain technology provides exceptionally high transparency since every action can be traced publicly. However, there are some tradeoffs that need to be considered, such as cost and response time. This work tends to find the potential of using Blockchain technology in the online review system by testing four implementation approaches of the Ethereum Smart Contract. The result illustrates that using IPFS to store the data is a practical way of reducing transaction costs. Besides, preventing using Smart Contract states can significantly reduce costs too. The response time for using the Blockchain and IPFS system is slower than the centralized system. However, posting a review does not need a fast response. Thus, it is worthy of trading response time with transparency and cost. In the business view, the review posting with cost causes more difficulty to generate fake reviews. Moreover, there are other advantages over the centralized system, such as the reward system, bogus review voting, and global database. Thus, credibility improvement for a consumer online review system is a potential application of Blockchain technology.
{"title":"Performance Analysis of Trustworthy Online Review System using Blockchain","authors":"Tanakorn Karode, Warodom Werapun","doi":"10.1109/ecti-con49241.2020.9158212","DOIUrl":"https://doi.org/10.1109/ecti-con49241.2020.9158212","url":null,"abstract":"Today, the online review system cannot fully support the business since there are fraudulent activities inside. The companies that get low score reviews are induced to raise their score for the market competition capability by paying to the platform for deleting or editing the posted reviews. Moreover, the automatic filtration system of a platform removes some reviews without the awareness of the users. The low transparency platform causes low credibility toward the reviews. Blockchain technology provides exceptionally high transparency since every action can be traced publicly. However, there are some tradeoffs that need to be considered, such as cost and response time. This work tends to find the potential of using Blockchain technology in the online review system by testing four implementation approaches of the Ethereum Smart Contract. The result illustrates that using IPFS to store the data is a practical way of reducing transaction costs. Besides, preventing using Smart Contract states can significantly reduce costs too. The response time for using the Blockchain and IPFS system is slower than the centralized system. However, posting a review does not need a fast response. Thus, it is worthy of trading response time with transparency and cost. In the business view, the review posting with cost causes more difficulty to generate fake reviews. Moreover, there are other advantages over the centralized system, such as the reward system, bogus review voting, and global database. Thus, credibility improvement for a consumer online review system is a potential application of Blockchain technology.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116479036","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}
Pub Date : 2020-06-01DOI: 10.1109/ecti-con49241.2020.9158101
Aziz Nanthaamornphong, Jeffrey L Holmes, Pracha Asawateera
The Phuket 2020 Smart City initiative, with its two strategies - Smart Economy and Smart Living Community, aims at creating greater trust in the government through responsiveness, transparency, and providing opportunities for greater engagement between government and citizens. One of the prerequisites for the successful implementation of the project is a big data platform that integrates several existing data sources around Phuket into one central hub and provides information and new insights to public and private entities. To achieve that, it is not enough to simply collect as much information as possible. The various sources must be put in a unified context that is enhanced with publicly accessible data and processed using methods and tools that are capable of mining new insights. The Digital Economy Promotion Agency has identified various data sources and is preparing for the next phase of data integration into a big data platform called the Phuket City Data Platform. The objective of this paper is to present a framework and a high-level action plan on the integration of these data sources. The paper highlights potential business values in four key areas: tourism, safety, environment, and the digital industry.
{"title":"A Case Study: Phuket City Data Platform","authors":"Aziz Nanthaamornphong, Jeffrey L Holmes, Pracha Asawateera","doi":"10.1109/ecti-con49241.2020.9158101","DOIUrl":"https://doi.org/10.1109/ecti-con49241.2020.9158101","url":null,"abstract":"The Phuket 2020 Smart City initiative, with its two strategies - Smart Economy and Smart Living Community, aims at creating greater trust in the government through responsiveness, transparency, and providing opportunities for greater engagement between government and citizens. One of the prerequisites for the successful implementation of the project is a big data platform that integrates several existing data sources around Phuket into one central hub and provides information and new insights to public and private entities. To achieve that, it is not enough to simply collect as much information as possible. The various sources must be put in a unified context that is enhanced with publicly accessible data and processed using methods and tools that are capable of mining new insights. The Digital Economy Promotion Agency has identified various data sources and is preparing for the next phase of data integration into a big data platform called the Phuket City Data Platform. The objective of this paper is to present a framework and a high-level action plan on the integration of these data sources. The paper highlights potential business values in four key areas: tourism, safety, environment, and the digital industry.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116509126","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}
Pub Date : 2020-06-01DOI: 10.1109/ECTI-CON49241.2020.9158245
Tawan Nam-In, Y. Kumsuwan
This paper presents a PWM technique for an asymmetrical dual inverter with a floating capacitor bridge fed an open-end ac load. This technique is to prevent the inrush current during charging into the floating capacitor by using buck-mode operation and to regulate the dc-link voltage its capacitor employing the space-vector PWM strategy for the dual inverter. This is desirable as it leads to avoiding the overcharging of the floating capacitor. These methods help in generating the 13-level voltage waveform of each phase at the output terminal of open-end ac loads in the full range of the modulation index from 0 to 1. Simulation results are illustrated and discussed to validate the effectiveness of the proposed method, which are compared with the existing dual inverters under the same PWM technique in terms of the total harmonic distortion of output phase voltages and so on.
{"title":"PWM Techniques for a 13-Level Asymmetrical Dual Inverter Configuration Without the Overcharging of Floating Capacitor","authors":"Tawan Nam-In, Y. Kumsuwan","doi":"10.1109/ECTI-CON49241.2020.9158245","DOIUrl":"https://doi.org/10.1109/ECTI-CON49241.2020.9158245","url":null,"abstract":"This paper presents a PWM technique for an asymmetrical dual inverter with a floating capacitor bridge fed an open-end ac load. This technique is to prevent the inrush current during charging into the floating capacitor by using buck-mode operation and to regulate the dc-link voltage its capacitor employing the space-vector PWM strategy for the dual inverter. This is desirable as it leads to avoiding the overcharging of the floating capacitor. These methods help in generating the 13-level voltage waveform of each phase at the output terminal of open-end ac loads in the full range of the modulation index from 0 to 1. Simulation results are illustrated and discussed to validate the effectiveness of the proposed method, which are compared with the existing dual inverters under the same PWM technique in terms of the total harmonic distortion of output phase voltages and so on.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134039884","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}
Pub Date : 2020-06-01DOI: 10.1109/ecti-con49241.2020.9158231
Win Zaw, Shwe Sin Moe, Ye Kyaw Thu, Nyein Nyein Oo
Romanization known as Latinization that refers to the representation of names with Roman (Latin) alphabets. The Romanization process is not trivial especially for Myanmar Language (Burmese) due to different Roman variations of a single Myanmar proper noun. The Myanmar Name Romanization project has so far developed a 55K Romanized word pairs of Myanmar personal names. We apply Weighted Finite State Transducers (WFST) and Ripple Down Rules (RDR) based tagging approaches to the task of Myanmar name Romanization and vice versa. We perform experiments on one closed test data set (5,000 of training data) and three open test data sets: 5,000 Myanmar personal names, 571 city and town names of Myanmar, and 292 Myanmar food names. The result shows that RDR approach gives better performance than WFST for open test data sets.
{"title":"Applying Weighted Finite State Transducers and Ripple Down Rules for Myanmar Name Romanization","authors":"Win Zaw, Shwe Sin Moe, Ye Kyaw Thu, Nyein Nyein Oo","doi":"10.1109/ecti-con49241.2020.9158231","DOIUrl":"https://doi.org/10.1109/ecti-con49241.2020.9158231","url":null,"abstract":"Romanization known as Latinization that refers to the representation of names with Roman (Latin) alphabets. The Romanization process is not trivial especially for Myanmar Language (Burmese) due to different Roman variations of a single Myanmar proper noun. The Myanmar Name Romanization project has so far developed a 55K Romanized word pairs of Myanmar personal names. We apply Weighted Finite State Transducers (WFST) and Ripple Down Rules (RDR) based tagging approaches to the task of Myanmar name Romanization and vice versa. We perform experiments on one closed test data set (5,000 of training data) and three open test data sets: 5,000 Myanmar personal names, 571 city and town names of Myanmar, and 292 Myanmar food names. The result shows that RDR approach gives better performance than WFST for open test data sets.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134114634","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}
Pub Date : 2020-06-01DOI: 10.1109/ecti-con49241.2020.9158112
Jomkun Suntaranurak, T. Suwanasri, C. Suwanasri
In this paper, the failure events of power circuit breaker and disconnecting switch in a utility in Thailand recorded during installation, operation and maintenance are analyzed by using statistical method. The major components and subcomponents of power circuit breaker and disconnecting switch were firstly classified. Then, the failure rate and useful lifetime of all major parts and all components were calculated by using Weibull distribution analysis. The obtained result can be subsequently used to determine the proper time-base repair or replacement in order to reduce the unplanned outage and improve the efficiency of preventive maintenance by replacing the component of switching device in time. This could improve system reliability, prevent unplanned outage, extend the lifetime of the equipment, properly manage the spare part, and etc.
{"title":"Lifetime Estimation of Switching Devices Using Weibull Distribution Analysis","authors":"Jomkun Suntaranurak, T. Suwanasri, C. Suwanasri","doi":"10.1109/ecti-con49241.2020.9158112","DOIUrl":"https://doi.org/10.1109/ecti-con49241.2020.9158112","url":null,"abstract":"In this paper, the failure events of power circuit breaker and disconnecting switch in a utility in Thailand recorded during installation, operation and maintenance are analyzed by using statistical method. The major components and subcomponents of power circuit breaker and disconnecting switch were firstly classified. Then, the failure rate and useful lifetime of all major parts and all components were calculated by using Weibull distribution analysis. The obtained result can be subsequently used to determine the proper time-base repair or replacement in order to reduce the unplanned outage and improve the efficiency of preventive maintenance by replacing the component of switching device in time. This could improve system reliability, prevent unplanned outage, extend the lifetime of the equipment, properly manage the spare part, and etc.","PeriodicalId":371552,"journal":{"name":"2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121852405","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}
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