{"title":"Development of an Equipment Monitoring System","authors":"Mohamad Farid Fazdi, Yi-Hsien Lin, Yu-Zen Tsai, Po-Wen Hsueh","doi":"10.1109/GTSD54989.2022.9989059","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989059","url":null,"abstract":"At present, the development of manufacturing machinery and technology is very rapid in Industry 4.0. Many problems arise in manufacturing machines that must be handled quickly by technicians. There are many ways to connect manufacturing machines and technicians, one of which is to use the Internet of Things and the Web of Things. Internet of Things (IoT) refers to all physical objects or devices that are connected and exchange data over the Internet. The main objective of WoT(Web of Things) is to standardize the use of web technologies that are already available to facilitate the development of IoT applications and online services. With the implementation of the Internet of Things and the Web of Things in the manufacturing industry, of course, the challenges are getting bigger. One of the main issues in IoT and WoT deployments includes devices with multiple protocols and the accessibility of multiple devices. One solution to the problem of interoperability is to use MQTT for data communication and the telegram application to find out the results of data monitoring. With the explanation above, we developed a monitoring manufacturing machine by monitoring the color of the lights on the stack light. when the manufacturing machine has a problem, it is hoped that the mechanic can come and solve the fault in the manufacturing machine faster","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133439909","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}
V. Pham, Duy Q. Do, Quyet D. Nguyen, Thu T.H. Nguyen
{"title":"Optimal DG Placement for Power Loss Minimization in Radial Power Distribution Networks using Mixed-Integer Quadratic Programming Method based on Modified DistFlow","authors":"V. Pham, Duy Q. Do, Quyet D. Nguyen, Thu T.H. Nguyen","doi":"10.1109/GTSD54989.2022.9989014","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989014","url":null,"abstract":"This paper aims at the optimal siting and sizing of distributed generation (DG) units in radial power distribution systems. The objective function to be minimized is real power losses of power distribution grids. The considered constraints encompass the power flow equations, voltage magnitude bounds, the number of buses selected to place DG units, active power limits of each DG and branch power flow confinements. This original optimization formulation is an intricate mixed-integer nonlinear programming (MINLP) model. This MINLP model is recast into mixed-integer quadratic programming (MIQP) formulation by exploiting the modified DistFlow method and exact linearization of the product of a real and binary variable, which can be easily solved with commercial solver CPLEX under GAMS software. The modified DistFlow in which the active and reactive powers are taken the place of their ratios to voltage magnitude as state variables is a cold-start linear branch power flow model. An IEEE 33-node system and a realistic distribution network are employed to study the effects of DG units on active power loss and voltage magnitudes using the proposed model. Calculated results reveal that optimally locating and sizing of DG units make a substantial contribution to decreasing power loss and improving the voltage profile in radial distribution systems.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131015085","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}
Dinh-Hung Le, Nhat-Minh Le, Khac-Hung Le, Van-Truong Pham, Thi-Thao Tran
{"title":"DR-Unet++: An Approach for Left Ventricle Segmentation from Magnetic Resonance Images","authors":"Dinh-Hung Le, Nhat-Minh Le, Khac-Hung Le, Van-Truong Pham, Thi-Thao Tran","doi":"10.1109/GTSD54989.2022.9989083","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989083","url":null,"abstract":"Precise and automatic segmentation of the left ventricle (LV) in cardiac magnetic resonance imaging (MRI) can help cardiologists make accurate diagnoses and decisions. In the revolution of Deep Learning, many LV image segmentation models have been developed and shown promising performance. Nevertheless, segmentation of the LV is still a nontrivial task due to challenges in the cardiac MR images such as the presence of intensity inhomogeneity, clutter, and object size variations. In this study, we propose DR- Unet++, an enhanced DR-Unet architecture, for cardiac segmentation tasks. The DR-Unet++ model, which utilizes advanced Deep Learning techniques, provides better feature extraction for the segmentation of desired segmented objects. Our tests on the ACDC dataset and Sunnybrook Cardiac dataset show that DR-Unet++ outperforms other modern models in terms of Dice coefficient and IoU metric and demonstrates its potential in biomedical image segmentation tasks.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134154210","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}
Trong Tai Nguyen, Dang Hien Ngo, Quoc Truong Nguyen, D. Tran, Xuan-Ba Dang
{"title":"Indoor Mobile Robot Positioning using Sensor Fusion","authors":"Trong Tai Nguyen, Dang Hien Ngo, Quoc Truong Nguyen, D. Tran, Xuan-Ba Dang","doi":"10.1109/GTSD54989.2022.9989084","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989084","url":null,"abstract":"In this research, a low-cost positioning sensor fusion system is investigated. In which, the Ultra-wide-band system combined with IMU and robot wheel odometry are employed to improve the accuracy and resolution of robot localization by using the Extended Kalman Filter. Simulation and experimental results are carried out to validate the proposed framework. The results show the effectiveness of the method with low cost, real-time, and robustness, centimeter- level positioning accuracy.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114486838","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}
Nguyen Vu Quynh, Vo Thanh Hoang Hieu, Ngo Kim Lan, Pham Van Toan
{"title":"The Improved Sliding Mode Observer for Sensorless Speed Control of Permanent Magnet Synchronous Motor","authors":"Nguyen Vu Quynh, Vo Thanh Hoang Hieu, Ngo Kim Lan, Pham Van Toan","doi":"10.1109/GTSD54989.2022.9988764","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9988764","url":null,"abstract":"This article was presented the improved sliding mode observer (ISMO) to control the speed of Permanent magnet synchronous motor (PMSM). The ISMO was built based on the back electromotive force (EMF) with the sigmoid function added. With this method, the estimated signal was improved. The Electronic Design Automation (EDA) simulator link for ModelSim executed the co-simulation using VHDL in ModelSim software. The results demonstrated that the new SMO function could effectively estimate the rotor angle and speed. The PMSM speed could achieve excellent static and dynamic performance.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114787899","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}
T. Pham, Vu Dinh Huan, Tien-Dung Tran, ThanhTuan Nguyen, Seoyong Shin
{"title":"Design of Daylighting System Using Modified Fresnel Lens and Multi-Stages Secondary Lens","authors":"T. Pham, Vu Dinh Huan, Tien-Dung Tran, ThanhTuan Nguyen, Seoyong Shin","doi":"10.1109/GTSD54989.2022.9989270","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989270","url":null,"abstract":"In this paper, a novel design for Daylighting system is proposed in detail. The introduced system is a combination of a designed Fresnel lens as a primary lens and a unique structure of a secondary lens to manage the main heating challenge in a design of a daylighting system. The structures of the primary and secondary lens are designed in Matlab program by using the fundamentals of non-imaging optics and then the data is imported into LightTools software to do ray-tracing and simulation to estimate the performance of the proposed system. The simulation results illustrate that the system can be a potential candidate for the next generation of daylighting systems with high optical efficiency and low cost. The designed daylighting system has some good properties such as uniformity of about 60 %, and total optical efficiency of about 70 %.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131673177","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}
J. Stuchlík, O. Babčenko, Z. Remeš, J. Čermák, A. Kromka, T. Pham, Minh-Tien Pham, T. Stuchlíková
{"title":"Diamond Thin Films for PV Solar Cells on the Base of a-SiC:H Alloy","authors":"J. Stuchlík, O. Babčenko, Z. Remeš, J. Čermák, A. Kromka, T. Pham, Minh-Tien Pham, T. Stuchlíková","doi":"10.1109/GTSD54989.2022.9989037","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989037","url":null,"abstract":"Thin-film photovoltaic (PV) cells based on a-Si:H have been and still are optimized. In this work, we present PV cells based on a-SiC:H alloys with low carbon content [1] deposited (compared to PV cells based only on a-Si:H) at elevated temperatures. The increased deposition temperature is in line with the deposition temperatures for consequent diamond layer deposition and helps to stabilize the achieved energy conversion efficiency. Thin diamond layers act as optically transparent material with a wide bandgap (5.47 eV) and a high optical refractive index (2.41). The outstanding properties of diamond are high chemical resistance, high mechanical hardness, and high thermal conductivity. Technological processes make it possible to diverge diamond from nanocrystalline to microcrystalline layers. The diamond crystal size governs the efficiency of the scattering of the incident light and its increased absorption in the connected structure of the PV cell. Both of these properties - high thermal conductivity and optimized layer roughness - are excellent prerequisites for the new structuring of thin-film PV cells. By efficient heat dissipation, PV cells operate in a mode of lower temperatures and thus higher energy conversion efficiency, even in the systems loaded with highly concentrated solar energy.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121108422","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}
{"title":"Applying sine PWM Technique to Control Three-phase Induction Motor in Electric Motorcycles","authors":"Le Thanh Phuc, D. Tri","doi":"10.1109/GTSD54989.2022.9988765","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9988765","url":null,"abstract":"This paper is focusing on the application of the sine pulse width modulation (SPWM) technique to control the induction motor in an electric motorcycle. In which, SPWM method is to generate the sinusoidal three-phase alternating current (AC) by comparing the amplitude of carrier wave and modulation wave. The generated three-phase AC voltage is then applied to the model of the induction motor (IM), especially the asynchronous three-phase motor. The simulations will be carried out to evaluate the crucial characteristic curves of an induction motor between grid voltage and sinusoidal three-phase AC voltage. The simulation results show that the frequency carrier directly affects the quality of modulation voltage output. In particular, the harmonics and the ripples of sinusoidal three-phase AC voltage, which are appeared as the results of the modulating process, will be decreased when increasing the frequency of the carrier wave. On the other hand, the acceleration of electric vehicles can be improved by boosting the battery pack voltage in a short time. In addition, the other characteristic curves including phase current in rotor and stator, the rotor angular speed, and motor torque are also analyzed detail.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117024790","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}
{"title":"Non-Orthogonal Multiple Access-assisted Cognitive Radio Networks: Performance Analysis","authors":"Ngoc Pham-Thi-Dan, Khuong Ho‐Van","doi":"10.1109/GTSD54989.2022.9989046","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989046","url":null,"abstract":"Non-Orthogonal Multiple Access (NOMA) is a prospective paradigm, which drastically improves spectral efficiency by permitting several users to partake concurrently the same transmission medium. Also, Cognitive Radio Networks (CRNs) considerably enhance spectral utilization efficiency by permitting unlicensed users to opportunistically transmit on frequency bands of licensed users subject to acceptable reliability of licensed users. Therefore, NOMA-assisted CRNs have attracted greatly interest from both academia and industry for attaining both high spectral efficiency and spectral utilization efficiency. Nonetheless, the outage performance of NOMA-assisted CRNs has not been analyzed thoroughly to gain insights and serve design guidelines. Towards this end, we firstly propose such an analysis by deriving precise explicit expressions of the outage probabilities of the far and near unlicensed receivers for these networks. Subsequently, the exactness of these expressions is corroborated extensively by computer simulations. Eventually, various results are supplied to demonstrate the outage probabilities in crucial system parameters.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124787539","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}
{"title":"Advanced Formation Control for Under-actuated Autonomous Underwater Vehicles with Uncertain Dynamics","authors":"Pham Nguyen Nhut Thanh, H. Anh","doi":"10.1109/GTSD54989.2022.9989170","DOIUrl":"https://doi.org/10.1109/GTSD54989.2022.9989170","url":null,"abstract":"In this paper, a formation control scheme is developed for under-actuated autonomous underwater vehicles (AUV) regarding to uncertain dynamics. Specifically, virtual targets are generated based on the leader's position and given formation. Constant bearing guidance law is then utilized to calculate the desired velocities to guide the followers to precisely track these virtual targets. Based on back-stepping technique, a formation controller is designed and two disturbance observers are constructed to deal with uncertain dynamics. It guarantees that the formation errors between vehicles are uniformly ultimately bounded through Lyapunov-based stability analysis. The effectiveness of the proposed scheme is verified through numerical simulation for numerous under-actuated AUV vehicles.","PeriodicalId":125445,"journal":{"name":"2022 6th International Conference on Green Technology and Sustainable Development (GTSD)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128514971","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}