Pub Date : 2022-11-22DOI: 10.1109/ELECOM54934.2022.9965248
N. Djuric, D. Kljajić, Vidak Otasevic, S. Djuric, Lu Yin
The zones of increased sensitivity to electromagnetic field (EMF) exposure have an important place in process of EMF monitoring. Such zones are residential zones where persons can stay24 hours a day; preschools, schools, hospitals, tourist facilities and children’s playgrounds. In most cases they are well covered by signals of cellular networks and their services, requiring comprehensive monitoring of present EMF exposure. Such monitoring should be mandatory when technical changes are performed on radiation elements of EMF sources, in the vicinity of these zones. Thus, the suitable EMF monitoring and assessment of the human exposure to EMFs become an important topic for relevant research community, as well as for public debates on dangerous health effects of EMF exposure. In this paper, utilization of the Serbian EMF RATEL network and its approach of continuous EMF monitoring in University of Novi Sad campus, as a zone of increased sensitivity, will be considered.
{"title":"The EMF Exposure Observation by Serbian EMF RATEL System in a Zone of Increased Sensitivity","authors":"N. Djuric, D. Kljajić, Vidak Otasevic, S. Djuric, Lu Yin","doi":"10.1109/ELECOM54934.2022.9965248","DOIUrl":"https://doi.org/10.1109/ELECOM54934.2022.9965248","url":null,"abstract":"The zones of increased sensitivity to electromagnetic field (EMF) exposure have an important place in process of EMF monitoring. Such zones are residential zones where persons can stay24 hours a day; preschools, schools, hospitals, tourist facilities and children’s playgrounds. In most cases they are well covered by signals of cellular networks and their services, requiring comprehensive monitoring of present EMF exposure. Such monitoring should be mandatory when technical changes are performed on radiation elements of EMF sources, in the vicinity of these zones. Thus, the suitable EMF monitoring and assessment of the human exposure to EMFs become an important topic for relevant research community, as well as for public debates on dangerous health effects of EMF exposure. In this paper, utilization of the Serbian EMF RATEL network and its approach of continuous EMF monitoring in University of Novi Sad campus, as a zone of increased sensitivity, will be considered.","PeriodicalId":302869,"journal":{"name":"2022 4th International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127113678","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 : 2022-11-22DOI: 10.1109/ELECOM54934.2022.9965263
B. Rajkumarsingh, Muhammad Husayn Edoo
Power Line Communication (PLC) for indoor use has been of significant interest in recent decades. The availability and topology of power lines in every building besides advantages such as broadband data services and no need for new infrastructure, increase the appeal of this technology. However, power lines are a harsh environment for the transmission of data due to signal attenuation, multipath propagation, interference and noise, especially impulsive noise. In this work, an indoor broadband PLC channel is modelled which uses Multiple Input Multiple Output (MIMO) techniques along with OSTBC with an objective to improve the bit error rate performance (BER). For the bursty behaviour of impulsive noise, the Markov-Middleton noise model which has its parameters derived from the Middleton Class A noise model is considered. Both impulsive noise models are implemented in the MIMO PLC channel. It has been found that MIMO along with Orthogonal Space Time Block Codes (OSTBC) is greatly effective in reducing multipath propagation and frequency-selective fading as a gain of14.93 dB at a BER of $10^{-5}$ is observed when compared to the Single Input Single Output (SISO) counterpart. It was also found that Markov-Middleton noise degrades the system slightly more than Middleton Class A noise as the SNR difference between the systems increases from 0.99 dB to 4.04 dB when the impulsiveness increases.
{"title":"BER Performance Comparison of the Markov-Middleton and Middleton Class A Noise Models in the MIMO Power Line Communication Channel","authors":"B. Rajkumarsingh, Muhammad Husayn Edoo","doi":"10.1109/ELECOM54934.2022.9965263","DOIUrl":"https://doi.org/10.1109/ELECOM54934.2022.9965263","url":null,"abstract":"Power Line Communication (PLC) for indoor use has been of significant interest in recent decades. The availability and topology of power lines in every building besides advantages such as broadband data services and no need for new infrastructure, increase the appeal of this technology. However, power lines are a harsh environment for the transmission of data due to signal attenuation, multipath propagation, interference and noise, especially impulsive noise. In this work, an indoor broadband PLC channel is modelled which uses Multiple Input Multiple Output (MIMO) techniques along with OSTBC with an objective to improve the bit error rate performance (BER). For the bursty behaviour of impulsive noise, the Markov-Middleton noise model which has its parameters derived from the Middleton Class A noise model is considered. Both impulsive noise models are implemented in the MIMO PLC channel. It has been found that MIMO along with Orthogonal Space Time Block Codes (OSTBC) is greatly effective in reducing multipath propagation and frequency-selective fading as a gain of14.93 dB at a BER of $10^{-5}$ is observed when compared to the Single Input Single Output (SISO) counterpart. It was also found that Markov-Middleton noise degrades the system slightly more than Middleton Class A noise as the SNR difference between the systems increases from 0.99 dB to 4.04 dB when the impulsiveness increases.","PeriodicalId":302869,"journal":{"name":"2022 4th International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132078153","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 : 2022-11-22DOI: 10.1109/ELECOM54934.2022.9965228
O. Okoro, Chiweta E. Abunike, U. B. Akuru, C. C. Awah, Peter I. Udenze, Uchechi O. Innocent
In this study, the influence of number of rotor slots on the electromagnetic performance characteristics of three-phase, four-pole squirrel-cage induction motor (SCIM), such as efficiency, torque, power factor torque ripple, and losses are studied using the finite element method (FEM). Firstly, classical design equations are used to obtain geometrical parameters of the SCIM before simulating the five SCIMs with FEM. The SCIMs are designed by using the same winding layout, stator outer diameter, stack length, rated power of 7. 5kW and rated speed of 1460 rpm. The rotor slot count varies from 36 to 59, and the standard SCIMs have 48 stator slots. According to the simulation results, there is a rotor slot number at which the highest possible power factor, torque, and efficiency are attained, together with the least amount of torque ripple and losses. It is observed that stator/rotor slot combinations of 48/36, 48/40, 48/57, and 48/59 exhibit torque ripples of 4.15%, 4.40%, 4.60% and 4.65%, respectively, while 48/44 recorded the highest ripple of 6.44%. Nevertheless, SCIMs with 48/44 and 48/59 stator/rotor slot combination recorded the highest (89.31%) and lowest (86.9%) efficiency at the rated condition. Based on the needs of the industrial applications, these insights can be applied to the design of three-phase SCIM.
{"title":"Electromagnetic Performance Characterization of 4-Pole Squirrel-Cage Motors with different Rotor Slot Combinations","authors":"O. Okoro, Chiweta E. Abunike, U. B. Akuru, C. C. Awah, Peter I. Udenze, Uchechi O. Innocent","doi":"10.1109/ELECOM54934.2022.9965228","DOIUrl":"https://doi.org/10.1109/ELECOM54934.2022.9965228","url":null,"abstract":"In this study, the influence of number of rotor slots on the electromagnetic performance characteristics of three-phase, four-pole squirrel-cage induction motor (SCIM), such as efficiency, torque, power factor torque ripple, and losses are studied using the finite element method (FEM). Firstly, classical design equations are used to obtain geometrical parameters of the SCIM before simulating the five SCIMs with FEM. The SCIMs are designed by using the same winding layout, stator outer diameter, stack length, rated power of 7. 5kW and rated speed of 1460 rpm. The rotor slot count varies from 36 to 59, and the standard SCIMs have 48 stator slots. According to the simulation results, there is a rotor slot number at which the highest possible power factor, torque, and efficiency are attained, together with the least amount of torque ripple and losses. It is observed that stator/rotor slot combinations of 48/36, 48/40, 48/57, and 48/59 exhibit torque ripples of 4.15%, 4.40%, 4.60% and 4.65%, respectively, while 48/44 recorded the highest ripple of 6.44%. Nevertheless, SCIMs with 48/44 and 48/59 stator/rotor slot combination recorded the highest (89.31%) and lowest (86.9%) efficiency at the rated condition. Based on the needs of the industrial applications, these insights can be applied to the design of three-phase SCIM.","PeriodicalId":302869,"journal":{"name":"2022 4th International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131447348","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 : 2022-11-22DOI: 10.1109/ELECOM54934.2022.9965257
Mouneer A. O. Mahomed, V. Oree, A. Murdan
Bus transport has been an important driver of the economic growth of Mauritius for decades. In recent years, it has been facing several challenges, such as competition from the Metro Express and an inability to upgrade its services. In addition, public buses still face inefficiencies that discourage the public to travel by them. These include bus drivers tending to drive slowly on purpose or dangerously fast resulting in their schedules at bus stops being unreliable. This paper exploits advanced technologies such as artificial intelligence, Internet of Things, cloud computing and big data analytics to enhance the efficiency of bus operations and provide a better service to the public. It presents the design and implementation of a microcontroller-based system that uses real-time data from onboard camera and GPS to monitor the condition of the road and the bus speed. The system can detect whether the bus is driving too fast or purposely too slow and upload pictures as proof. A web application is also developed to process data uploaded by the system on the cloud to provide the passengers with the exact location of the buses on a map so that they can better plan their trip.
{"title":"Improving Public Transport Efficiency in Mauritius using Artificial Intelligence and Internet of Things solutions","authors":"Mouneer A. O. Mahomed, V. Oree, A. Murdan","doi":"10.1109/ELECOM54934.2022.9965257","DOIUrl":"https://doi.org/10.1109/ELECOM54934.2022.9965257","url":null,"abstract":"Bus transport has been an important driver of the economic growth of Mauritius for decades. In recent years, it has been facing several challenges, such as competition from the Metro Express and an inability to upgrade its services. In addition, public buses still face inefficiencies that discourage the public to travel by them. These include bus drivers tending to drive slowly on purpose or dangerously fast resulting in their schedules at bus stops being unreliable. This paper exploits advanced technologies such as artificial intelligence, Internet of Things, cloud computing and big data analytics to enhance the efficiency of bus operations and provide a better service to the public. It presents the design and implementation of a microcontroller-based system that uses real-time data from onboard camera and GPS to monitor the condition of the road and the bus speed. The system can detect whether the bus is driving too fast or purposely too slow and upload pictures as proof. A web application is also developed to process data uploaded by the system on the cloud to provide the passengers with the exact location of the buses on a map so that they can better plan their trip.","PeriodicalId":302869,"journal":{"name":"2022 4th International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128934526","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 : 2022-11-22DOI: 10.1109/ELECOM54934.2022.9965240
M. Chetto, Rola El Osta
Energy harvesting sensors move into the mainstream because they are regarded as a perfect match for the monitoring applications. Nonetheless, their implementation is only feasible if the computing unit, generally a microcontroller, is capable of running the real-time tasks using sophisticated scheduling and power management techniques. In this paper, we address the hard real-time scheduling problem of Directed Acyclic Graph (DAG) tasks in a uniprocessor RTEH (Real Time Energy Harvesting) computing system. In this model, a task is defined as a set of dependent sub-tasks that execute under precedence constraints with processing time and energy requirements. We demonstrate that the energy aware ED-H algorithm provides an optimal solution. We show that the scheduling policy directly includes a feasibility analysis by enforcing the precedence constraints, thus making it possible to get rid of semaphore synchronization.
能量收集传感器进入主流，因为它们被认为是监测应用的完美匹配。尽管如此，它们的实现只有在计算单元(通常是微控制器)能够使用复杂的调度和电源管理技术运行实时任务时才可行。本文研究了单处理器RTEH (Real Time Energy Harvesting)计算系统中有向无环图(DAG)任务的硬实时调度问题。在该模型中，任务被定义为一组相互依赖的子任务，这些子任务在具有处理时间和精力需求的优先约束下执行。我们证明了能量感知ED-H算法提供了一个最优解。我们展示了调度策略通过强制优先约束直接包括可行性分析，从而使摆脱信号量同步成为可能。
{"title":"Real-Time Scheduling of DAG Tasks in Self-Powered Sensors with Scavenged Energy","authors":"M. Chetto, Rola El Osta","doi":"10.1109/ELECOM54934.2022.9965240","DOIUrl":"https://doi.org/10.1109/ELECOM54934.2022.9965240","url":null,"abstract":"Energy harvesting sensors move into the mainstream because they are regarded as a perfect match for the monitoring applications. Nonetheless, their implementation is only feasible if the computing unit, generally a microcontroller, is capable of running the real-time tasks using sophisticated scheduling and power management techniques. In this paper, we address the hard real-time scheduling problem of Directed Acyclic Graph (DAG) tasks in a uniprocessor RTEH (Real Time Energy Harvesting) computing system. In this model, a task is defined as a set of dependent sub-tasks that execute under precedence constraints with processing time and energy requirements. We demonstrate that the energy aware ED-H algorithm provides an optimal solution. We show that the scheduling policy directly includes a feasibility analysis by enforcing the precedence constraints, thus making it possible to get rid of semaphore synchronization.","PeriodicalId":302869,"journal":{"name":"2022 4th International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125559192","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 : 2022-11-22DOI: 10.1109/ELECOM54934.2022.9965251
Kingsley Okoye
Today, technology is used for several purposes across the different sectors and organizations. In education, there has been discussions, both in theory and in practice, around what technology offers to the educational community, and how it can help the educators offer effective learning or yet outcome-based education for the stakeholders (teachers, students, society). To this vein, this study introduces a Strategic Intelligence and Technology in Education framework, called SITE, designed for contextual analysis of the impact of the new and emerging educational technologies and innovations in education. Theoretically, it describes an ensemble algorithm or procedures that can be implemented by educators to provide a more strategic-process-related and enhanced curriculum or educational learning models. It then provides an empirical discussion and implications of the results of the data analysis conducted using datasets about (i) students’ learning outcome and assessment, and (ii) the different types of innovation in education. The results show that while “technology” is more associated to “educational innovation” than other methods or services. There is also, on the other hand, the need for reimagining education to include indicators for outcome-based education through integration of multi-service or co-productive learning components or pathways, such as amalgamation of technology with strategic intelligence done in this paper.
{"title":"Using Strategic Intelligence and Technology as building block for Educational Innovation: a conceptual framework towards the impact for outcome-based education","authors":"Kingsley Okoye","doi":"10.1109/ELECOM54934.2022.9965251","DOIUrl":"https://doi.org/10.1109/ELECOM54934.2022.9965251","url":null,"abstract":"Today, technology is used for several purposes across the different sectors and organizations. In education, there has been discussions, both in theory and in practice, around what technology offers to the educational community, and how it can help the educators offer effective learning or yet outcome-based education for the stakeholders (teachers, students, society). To this vein, this study introduces a Strategic Intelligence and Technology in Education framework, called SITE, designed for contextual analysis of the impact of the new and emerging educational technologies and innovations in education. Theoretically, it describes an ensemble algorithm or procedures that can be implemented by educators to provide a more strategic-process-related and enhanced curriculum or educational learning models. It then provides an empirical discussion and implications of the results of the data analysis conducted using datasets about (i) students’ learning outcome and assessment, and (ii) the different types of innovation in education. The results show that while “technology” is more associated to “educational innovation” than other methods or services. There is also, on the other hand, the need for reimagining education to include indicators for outcome-based education through integration of multi-service or co-productive learning components or pathways, such as amalgamation of technology with strategic intelligence done in this paper.","PeriodicalId":302869,"journal":{"name":"2022 4th International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127383924","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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