Pub Date : 2019-07-01DOI: 10.1109/ICEAST.2019.8802572
Nattapan Suwansukho, S. Promwong
This paper describes the result of using Rotated Constellation Feature that include Digital Terrestrial Television second generation network in Thailand. The measured results were carried out from 20 measured location, located in Bangkok, Thailand.
{"title":"Evaluation of Rotated Constellation in DVB-T2 Based on Measurement Data","authors":"Nattapan Suwansukho, S. Promwong","doi":"10.1109/ICEAST.2019.8802572","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802572","url":null,"abstract":"This paper describes the result of using Rotated Constellation Feature that include Digital Terrestrial Television second generation network in Thailand. The measured results were carried out from 20 measured location, located in Bangkok, Thailand.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127647458","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802526
Pitcha Prasitmeeboon, Henry Yau
Particleboards may exhibit several defect types caused by a variety of sources during the manufacturing process. It is essential to quickly determine when a defect is present and localize the fault so that the board can either be fixed or discarded. Several methods have been already been developed to address this issue to varying degrees of success. In this work, a novel process is presented which quickly determines whether a defect exists or not using traditional machine learning techniques on a bivariate color histogram of the particleboard and then localize the defect using automated image manipulation techniques. The workflow of quickly determining if a defect is present then using a more computationally intensive technique to localize and classify the defect can be extended to use other methods or even to other processes.
{"title":"Defect Detection of Particleboards by Visual Analysis and Machine Learning","authors":"Pitcha Prasitmeeboon, Henry Yau","doi":"10.1109/ICEAST.2019.8802526","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802526","url":null,"abstract":"Particleboards may exhibit several defect types caused by a variety of sources during the manufacturing process. It is essential to quickly determine when a defect is present and localize the fault so that the board can either be fixed or discarded. Several methods have been already been developed to address this issue to varying degrees of success. In this work, a novel process is presented which quickly determines whether a defect exists or not using traditional machine learning techniques on a bivariate color histogram of the particleboard and then localize the defect using automated image manipulation techniques. The workflow of quickly determining if a defect is present then using a more computationally intensive technique to localize and classify the defect can be extended to use other methods or even to other processes.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128840702","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802600
Aphichata Thongrak, S. Sitjongsataporn, S. Khunkhao, P. Moungnoul
This paper introduces a memristor emulator circuit based on operational transconductance amplifiers (OTAs). The proposed circuits can be realized using commercially integrated circuits OTA, op amp as AD844, TL084, inductor, capacitor and resistors. The characteristic of memristor emulators can be tested in a practical experiment with the active and passive components. This lead to being a real memristor circuit application. OTA is used to realize electronically tunable current conveyors emulator circuit. The memristor (RM), memcapacitor (CM) and meminductor (LM) are proposed to determine in time-domain characteristics of the RLC-mode circuit. Experimental results have discussed the phenomena studied by the memory characteristics.
{"title":"Implementation of OTA-based Memristor Emulator for Adjusting Frequency","authors":"Aphichata Thongrak, S. Sitjongsataporn, S. Khunkhao, P. Moungnoul","doi":"10.1109/ICEAST.2019.8802600","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802600","url":null,"abstract":"This paper introduces a memristor emulator circuit based on operational transconductance amplifiers (OTAs). The proposed circuits can be realized using commercially integrated circuits OTA, op amp as AD844, TL084, inductor, capacitor and resistors. The characteristic of memristor emulators can be tested in a practical experiment with the active and passive components. This lead to being a real memristor circuit application. OTA is used to realize electronically tunable current conveyors emulator circuit. The memristor (RM), memcapacitor (CM) and meminductor (LM) are proposed to determine in time-domain characteristics of the RLC-mode circuit. Experimental results have discussed the phenomena studied by the memory characteristics.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116994737","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802534
Nisakorn Pruengprach, W. Suwan-ngam
The aim of this paper is to present the efficiency improvement of a dual-active-bridge isolated bidirectional DC-DC converter. The converter is designed by considering the type of switching devices and design of a high frequency transformer. The designed 2 kW converter is simulated using PSIM. The prototype is constructed and implemented by using TMS320f28335 DSP. The experimental results show that 96.25% efficiency is achieved at the designed frequency.
{"title":"Efficiency Improvement of a Dual-Active-Bridge Isolated Bidirectional DC-DC Converter","authors":"Nisakorn Pruengprach, W. Suwan-ngam","doi":"10.1109/ICEAST.2019.8802534","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802534","url":null,"abstract":"The aim of this paper is to present the efficiency improvement of a dual-active-bridge isolated bidirectional DC-DC converter. The converter is designed by considering the type of switching devices and design of a high frequency transformer. The designed 2 kW converter is simulated using PSIM. The prototype is constructed and implemented by using TMS320f28335 DSP. The experimental results show that 96.25% efficiency is achieved at the designed frequency.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115678230","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802591
Sooppasek Katruksa, S. Jiriwibhakorn
This paper continues to develop the previous paper on Application Data for Electricity Load Forecasting Models by applying the method to the geographic information system (GIS) technology in medium-term energy forecasting for the Metropolitan Electricity Authority (MEA) area of Bangkok, Thailand. This method can be employed to improve the electricity load efficiency of the MEA. The spatial prediction plays a key role in the expansion of the areas of electricity distribution, such as the decision-making regarding investment in new substations and power system planning for maintenance and operations. The results appear to indicate that the prediction of the point density of the MEA areas was proportional to the electricity demand in the MEA areas.
{"title":"Electricity Load Forecasting Based on a Geographic Information System","authors":"Sooppasek Katruksa, S. Jiriwibhakorn","doi":"10.1109/ICEAST.2019.8802591","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802591","url":null,"abstract":"This paper continues to develop the previous paper on Application Data for Electricity Load Forecasting Models by applying the method to the geographic information system (GIS) technology in medium-term energy forecasting for the Metropolitan Electricity Authority (MEA) area of Bangkok, Thailand. This method can be employed to improve the electricity load efficiency of the MEA. The spatial prediction plays a key role in the expansion of the areas of electricity distribution, such as the decision-making regarding investment in new substations and power system planning for maintenance and operations. The results appear to indicate that the prediction of the point density of the MEA areas was proportional to the electricity demand in the MEA areas.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114607341","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802586
Phonlasit Thinnakorn Na ayuthaya, Sakda Sakorntanant
The acoustic parameters and sound characteristics of an acoustic instrument are essential for a general use into the musical field. With the information, the musical instrument maker can use for developing in the design so that the quality of the musical instrument will be improved. The study in this area also provides knowledge for virtual acoustic parameters and recording techniques. This research aims to develop an effective and economic measuring methodology to characterize the acoustic parameters such as sound directivity of Thai string instruments (Sx $hat{mathrm{d}}text{wng}$) in a real acoustic environment.
{"title":"Measurement methodology to characterize acoustic parameters of Thai fiddle (Sx $hat{mathrm{d}}text{wng}$)","authors":"Phonlasit Thinnakorn Na ayuthaya, Sakda Sakorntanant","doi":"10.1109/ICEAST.2019.8802586","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802586","url":null,"abstract":"The acoustic parameters and sound characteristics of an acoustic instrument are essential for a general use into the musical field. With the information, the musical instrument maker can use for developing in the design so that the quality of the musical instrument will be improved. The study in this area also provides knowledge for virtual acoustic parameters and recording techniques. This research aims to develop an effective and economic measuring methodology to characterize the acoustic parameters such as sound directivity of Thai string instruments (Sx $hat{mathrm{d}}text{wng}$) in a real acoustic environment.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127788699","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802584
K. Bounnady, P. Sibounnavong, Khampasith Chanthavong, Savath Saypadith
Agricultural is an important field of economic development in Lao. Farming needs to be adapted in order to be able to satisfy consumers, so using IoT (Internet of Things) to help in this field is one of the preferred alternatives in the present. In this research, the system monitoring of soil moisture, temperature and water control has been proposed by using NodeMCU ESP8266, sensors and Cloud Computing. To study the effects of growth rate, producing rate, water saving rate of crop planting the three methods such as traditional farm, the greenhouse by using a timer to control soil moisture and the greenhouse by using sensors to automatically control soil moisture was set up and experimented on the melon farm. After that, we have kept track and record all statistics of each part of the plants such as height, its flower, and fruit every week for ten weeks, then analyse it on average in percentage (%) by using Excel to gather information. The results of all experiments compared with method using sensor to automatically control soil moisture, the result as following: grown rate is better than traditional farm 41.2% and better than a timer to control soil moisture is 23.1%; productivity is getting more than traditional farm 70% and get more than a timer to control soil moisture is 12.1%; water saving better than traditional farm 20.9% and better than a timer to control soil moisture is 5.5%.
{"title":"Smart Crop Cultivation Monitoring System by Using IoT","authors":"K. Bounnady, P. Sibounnavong, Khampasith Chanthavong, Savath Saypadith","doi":"10.1109/ICEAST.2019.8802584","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802584","url":null,"abstract":"Agricultural is an important field of economic development in Lao. Farming needs to be adapted in order to be able to satisfy consumers, so using IoT (Internet of Things) to help in this field is one of the preferred alternatives in the present. In this research, the system monitoring of soil moisture, temperature and water control has been proposed by using NodeMCU ESP8266, sensors and Cloud Computing. To study the effects of growth rate, producing rate, water saving rate of crop planting the three methods such as traditional farm, the greenhouse by using a timer to control soil moisture and the greenhouse by using sensors to automatically control soil moisture was set up and experimented on the melon farm. After that, we have kept track and record all statistics of each part of the plants such as height, its flower, and fruit every week for ten weeks, then analyse it on average in percentage (%) by using Excel to gather information. The results of all experiments compared with method using sensor to automatically control soil moisture, the result as following: grown rate is better than traditional farm 41.2% and better than a timer to control soil moisture is 23.1%; productivity is getting more than traditional farm 70% and get more than a timer to control soil moisture is 12.1%; water saving better than traditional farm 20.9% and better than a timer to control soil moisture is 5.5%.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128078955","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802590
Subhawat Jayasvasti, D. Isarakorn
This paper introduces the feasibility examination of indoor positioning system using the Bluetooth low energy (BLE) and the radio-frequency identification (RFID) devices to further apply in the diagnosis of neurodegenerative disease leading an unusual human body motion. Experimentally, a BLE module and a RFID tag are simulated to be the wearable devices mounted to human body, moving with common body motions. Their movements affecting on position tracking efficiency are investigated through smartphone and ultra-high frequency RFID reader, respectively. The results show that a BLE device presents the best position sensing ability.
{"title":"Indoor Positioning System on Identification of Neurodegenerative Disease: A Comparative Study of BLE versus RFID","authors":"Subhawat Jayasvasti, D. Isarakorn","doi":"10.1109/ICEAST.2019.8802590","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802590","url":null,"abstract":"This paper introduces the feasibility examination of indoor positioning system using the Bluetooth low energy (BLE) and the radio-frequency identification (RFID) devices to further apply in the diagnosis of neurodegenerative disease leading an unusual human body motion. Experimentally, a BLE module and a RFID tag are simulated to be the wearable devices mounted to human body, moving with common body motions. Their movements affecting on position tracking efficiency are investigated through smartphone and ultra-high frequency RFID reader, respectively. The results show that a BLE device presents the best position sensing ability.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126562625","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802521
Nawat Ronnaronglit, Noppadol Maneerat
Many types of Solar Panel Cleaning Robots are used in many countries, such as Solar Frames Connected Robot. Developing the Solar Panel Cleaning Robots can be used to work instead human especially it is not necessary to have a supervisor for working control and reduce a risk of damage from moving a robot. However, Solar Frames Connected Robot still has defect which limited size of solar panel and not easy to move. This research aims to design and develop the Solar Panel Cleaning Robots by studying Solar Panel Cleaning Robots movement which work suitable in Thailand, Wireless Joystick, Sensor Sonar using Gear Motor and ARDUINO microcontroller. The robot will clean a solar cell by using a rotary brush with water spray to improve cleaning system. Result of studying Solar Panel Cleaning Robots movement by using Gear Motor can operate at a surface level of 0–30 degrees Celsius and cleaning system by using rotary brush can be clean 80% of solar panel.
{"title":"A Cleaning Robot for Solar Panels","authors":"Nawat Ronnaronglit, Noppadol Maneerat","doi":"10.1109/ICEAST.2019.8802521","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802521","url":null,"abstract":"Many types of Solar Panel Cleaning Robots are used in many countries, such as Solar Frames Connected Robot. Developing the Solar Panel Cleaning Robots can be used to work instead human especially it is not necessary to have a supervisor for working control and reduce a risk of damage from moving a robot. However, Solar Frames Connected Robot still has defect which limited size of solar panel and not easy to move. This research aims to design and develop the Solar Panel Cleaning Robots by studying Solar Panel Cleaning Robots movement which work suitable in Thailand, Wireless Joystick, Sensor Sonar using Gear Motor and ARDUINO microcontroller. The robot will clean a solar cell by using a rotary brush with water spray to improve cleaning system. Result of studying Solar Panel Cleaning Robots movement by using Gear Motor can operate at a surface level of 0–30 degrees Celsius and cleaning system by using rotary brush can be clean 80% of solar panel.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131488358","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 : 2019-07-01DOI: 10.1109/ICEAST.2019.8802574
Pemmavit Sutthikarn, S. Chivapreecha, T. Jongsataporn, A. Trirat
This paper presents a design and realization of tunable bandpass and bandstop digital filters based on using tunable digital lowpass and highpass filters. The frequency response of both digital lowpass and highpass filters which called prototype filters can be changed/tuned by replacing unit delay elements in filter structure with 1st-order allpass network. From the tunable digital lowpass and highpass filters, the cascade connection of them can give tunable bandpass filter, the parallel connection can give tunable bandstop filter. The conditions of using proposed tunable bandpass/bandstop filters will be analyzed and explained in this work. A high flexibility of tuning both center frequency and bandwidth can be achieved from the proposed design and realization. Simulation results also be compared with experimental results from hardware implementation on FPGA using NI-myRIO device to ensure that the obtained frequency responses are correspondence.
{"title":"Tunable Bandpass/Bandstop Digital Filters Basedon 1st-order Allpass Network Instead of Unit Delay","authors":"Pemmavit Sutthikarn, S. Chivapreecha, T. Jongsataporn, A. Trirat","doi":"10.1109/ICEAST.2019.8802574","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802574","url":null,"abstract":"This paper presents a design and realization of tunable bandpass and bandstop digital filters based on using tunable digital lowpass and highpass filters. The frequency response of both digital lowpass and highpass filters which called prototype filters can be changed/tuned by replacing unit delay elements in filter structure with 1st-order allpass network. From the tunable digital lowpass and highpass filters, the cascade connection of them can give tunable bandpass filter, the parallel connection can give tunable bandstop filter. The conditions of using proposed tunable bandpass/bandstop filters will be analyzed and explained in this work. A high flexibility of tuning both center frequency and bandwidth can be achieved from the proposed design and realization. Simulation results also be compared with experimental results from hardware implementation on FPGA using NI-myRIO device to ensure that the obtained frequency responses are correspondence.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"603 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134502256","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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