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2022 6th European Conference on Electrical Engineering & Computer Science (ELECS)最新文献

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Design of High-Reliability LDO regulator with SCR based ESD Protection circuit using dual buffer structure for low-voltage applications 基于可控硅的高可靠性LDO稳压器设计,采用双缓冲结构的ESD保护电路用于低压应用
Pub Date : 2022-12-01 DOI: 10.1109/elecs55825.2022.00017
Sang-Wook Kwon, Byung Seok Lee, Baek Seung Hwan, Yong Seo Koo
The magnitude of the peak voltage may affect the system of the LDO regulator depending on the load current. The LDO regulator, which must provide the appropriate voltage for each system level, must be designed to be insensitive towards the changes in the load current. The proposed LDO regulator was applied to have an excellent current driving capability depending on the load current with the dual buffer structure. In addition, the proposed ESD protection provides improved ESD robustness characteristics using PTSCR (P-Substrate Triggered SCR) in low-voltage applications built into the power lines and output terminals based on the silicon control rectifier (SCR). The operating conditions of the proposed LDO regulator of the dual buffer structure were set to an input voltage of 3.3 V to 4.5 V, a maximum load current of300 mA, and an output power voltage of 3 V. As a result of the measurement, the proposed LDO regulator maintained undershoot and overshoot voltages of 41 and 46 mV, respectively, when a load current of 200 mA was applied. In addition, it was confirmed that a stable output voltage was provided after the introduction of the ESD situation.
根据负载电流的大小,峰值电压的大小可能影响LDO稳压器的系统。LDO稳压器必须为每个系统电平提供适当的电压,必须设计成对负载电流的变化不敏感。采用双缓冲结构,使LDO稳压器具有良好的随负载电流变化的电流驱动能力。此外,基于硅控制整流器(SCR)的输电线和输出终端内置的低压应用中,采用PTSCR (P-Substrate Triggered SCR),所提出的ESD保护提供了更好的ESD稳健性。本文提出的双缓冲结构LDO稳压器工作条件为输入电压3.3 ~ 4.5 V,最大负载电流300 mA,输出电源电压3 V。作为测量的结果,当负载电流为200 mA时,所提出的LDO稳压器分别保持41 mV和46 mV的欠调和过调电压。此外,还证实了在引入ESD情况后可以提供稳定的输出电压。
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引用次数: 0
Comparison between Environmental Condition Parameters and Attack Degree of Vine using IoT Sensors System 基于物联网传感器系统的葡萄树环境条件参数与攻击程度比较
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00033
M. Hnatiuc, Bogdan Savin, I. Dina
Vine disease identification using the IoT sensors network is a new method studied by many researchers. This method wants to replace the farmer’s work that uses classical methods to detect and prevent vine problems. The presented studies aim to compare the results of vine disease diagnosis obtained using classical and intelligent methods of data acquisition. Using the classical methods is identifying the degree of attack (DA) of the disease on the vine leaf. The environmental parameters are analyzed using neural network classification to identify the disease occurrence and to prevent them. So, the diagnosis system can be implemented using a supervised neural network in which the classes represent the DA identified on the leaves and the inputs are the atmospheric conditions.
利用物联网传感器网络进行葡萄病害识别是许多研究者研究的一种新方法。这种方法想要取代农民使用传统方法来检测和预防葡萄藤问题的工作。本研究的目的是比较经典和智能数据采集方法获得的葡萄病害诊断结果。利用经典的方法来鉴定葡萄叶病害的侵袭程度。利用神经网络分类对环境参数进行分析,识别疾病的发生并进行预防。因此,诊断系统可以使用一个监督神经网络来实现,其中类代表在叶子上识别的DA,输入是大气条件。
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引用次数: 0
Approach to The Development of a Conceptual Model of a Sociotechnical System Based on Digital Technologies 基于数字技术的社会技术系统概念模型的开发方法
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00014
E. Ginters, Murathan Ali Aytekin, Peteris Ecis, Martins Cirss, Rudis Rozitis, Jamal Mohamed Husamudeen, Feleena Xavier, Aleksandrs Aleksejevs, Daniels Millers, Elina Rozenberga, Linards Frijars, Kitija Vita Gaidele, Ricards Grinbergs, Hatuna Halvasa, Antons Jekarasevs, Andrejs Arturs Kocetoks, Lina Korobova, Martins Krumins, Darina Lurina, Janis Platacis, Edvards Seve, Nadina Tarnovska, Roberts Veinbergs, Artjoms Zerebkovs
Data show that only a third of the total volume of IT projects are successful, and that more than 80% of developers of large-scale projects will fail. The main reason for this is the ignorance of the social and human factors at play during the development of the conceptual model of the project. The aim of this article is to present an approach for designing a conceptual model of an information processing system based on digital technologies that respects the paradigms of sociotechnical systems. In order to explore the attitudes of young specialists towards such an approach, a Likert-type five-point survey was implemented, the results of which explained the reasons for possible failures of IT projects. The lessons learned in this work will be useful for customers, investors and project developers.
数据显示,只有三分之一的IT项目是成功的,而超过80%的大型项目的开发人员将失败。造成这种情况的主要原因是忽视了在项目概念模型开发过程中发挥作用的社会和人为因素。本文的目的是提出一种设计基于数字技术的信息处理系统概念模型的方法,该模型尊重社会技术系统的范例。为了探索年轻专家对这种方法的态度,实施了李克特式五点调查,其结果解释了IT项目可能失败的原因。在这项工作中吸取的经验教训将对客户、投资者和项目开发人员有用。
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引用次数: 0
Improved HVDC Reactive Power Control Using Fuzzy PI 基于模糊PI的改进高压直流无功控制
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00034
M. Boswell, E. Gatavi
With the growing use of alternate power generation sources such as wind and solar, HVDC systems are an important enabler for power distribution between grids and enable a range of alternate sources connecting to the grid. Unlike AC systems, the HVDC system does not suffer from reactive power losses providing greater efficiency for power transmission. Minimizing reactive power, therefore, increases efficiency. However, in a transmission system, reactive power is useful in maintaining a stable voltage and improving fault recovery within the system. Due to DC transmission requiring the use of power electronics, especially in the area of Voltage Source Converters (VSC) HVDC converters, the controllability of DC allows for full control over the transmitted active and reactive power independently. In this paper, combining the fast responsive nature of the PI controller with the robust damping capabilities of the fuzzy logic controller is applied to gain better control when clearing faults.
随着风能和太阳能等替代发电源的使用越来越多,高压直流输电系统是电网之间电力分配的重要推动者,并使一系列替代电源连接到电网。与交流系统不同,高压直流系统没有无功损耗,为电力传输提供了更高的效率。因此,减少无功功率可以提高效率。然而,在输电系统中,无功功率在维持电压稳定和提高系统故障恢复方面是有用的。由于直流传输需要使用电力电子设备,特别是在电压源变流器(VSC) HVDC变流器领域,直流的可控性允许完全控制传输的有功功率和无功功率。本文将PI控制器的快速响应特性与模糊逻辑控制器的鲁棒阻尼能力相结合,在清除故障时获得更好的控制效果。
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引用次数: 0
Note on the Stability Property of the Boundary Equilibria of a Prey-Predator Model with a Refuge-Stage Structure Prey Population 具有避难阶段结构猎物种群的捕食-捕食模型边界平衡点的稳定性
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00008
Xiaoran Li, Qin Yue, Fengde Chen
We revisit the stability property of the boundary equilibria of a prey-predator model with a refuge-stage structure prey population. For the vanishing equilibrium point, our study shows that the conditions that ensure the local stability of the vanishing point are enough to ensure its global stability. The differential inequality theory is used to derive a set of easily verifiable requirements ensuring predator-free equilibrium’s global asymptotically stable behavior. Our results essentially improve some known results.
本文重新研究了具有避难阶段结构猎物种群的捕食者-猎物模型边界平衡的稳定性。对于消失平衡点,我们的研究表明,保证消失点局部稳定的条件足以保证其全局稳定。利用微分不等式理论导出了一组易于验证的条件,以保证无捕食者均衡的全局渐近稳定行为。我们的结果基本上改进了一些已知的结果。
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引用次数: 0
Towards Seamless Communication in Capillary Networks 毛细管网络中的无缝通信
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00028
A. Walid, Samy S. A. Ghoniemy
The huge expansion of wireless technologies along with the prosperity of the Internet of Things has become immensely notable. However, such a huge shift in the world of wireless technologies has resulted in abundant challenges including, incompatibility between wireless standards in heterogenous networks in addition to an increase in energy consumption. Therefore, a solution has been proposed that visions an era of seamless communication in heterogenous networks to mitigate the preceding challenges. The proposed solution will be evaluated and validated through a network simulator OMNeT++ along with a simulated network topology. Simulation Analysis demonstrates an enhancement in terms of performance which offers great potential in trending seamless IoT applications.
随着物联网的繁荣,无线技术的巨大扩张已经变得非常引人注目。然而,无线技术领域的这种巨大转变带来了许多挑战,包括异构网络中无线标准之间的不兼容以及能源消耗的增加。因此,提出了一种解决方案,设想在异构网络中实现无缝通信的时代,以减轻上述挑战。将通过网络模拟器omnet++以及模拟的网络拓扑对所提出的解决方案进行评估和验证。仿真分析证明了性能方面的增强,为无缝物联网应用趋势提供了巨大的潜力。
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引用次数: 0
Permanence and Periodic Solution of a Non-autonomous Stage-structure Prey-Predator Model with Cannibalism 具有同类相食的非自治阶段结构捕食-捕食模型的持久性和周期解
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00009
Hang Deng, Shang-Feng Chen, Fengde Chen
A non-autonomous stage-structure prey-predator model with cannibalism for prey is proposed and investigated in this paper. Using the differential inequality theory, sufficient conditions that ensure the system’s permanence are obtained in the general non-autonomous case. For periodic case, by using Brower’s fixed point theorem and constructing a suitable Lyapunov function, sufficient conditions which ensure the existence of unique globally asymptotically stable periodic solutions are obtained. Numeric simulations are carried out to show the feasilibility of the main results.
提出并研究了一种具有同类相食的非自主阶段结构捕食者-捕食者模型。利用微分不等式理论,得到了一般非自治情况下系统持久的充分条件。对于周期情况,利用Brower不动点定理,构造一个合适的Lyapunov函数,得到了保证周期解存在唯一全局渐近稳定解的充分条件。通过数值仿真验证了主要结果的可行性。
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引用次数: 0
Diabetic Retinopathy Classification using Vision Transformer 利用视觉变换器对糖尿病视网膜病变进行分类
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00012
A. Mutawa, S. Sruthi
An adult's death from diabetes ranks among the top 10 global causes of death. Eye conditions like diabetic retinopathy (DR) are more common in people with diabetes. Loss of eyesight may arise from DR's damage to the retina's blood vessels. Grading the severity of DR is a crucial step to aid in early identification and treatment and to halt the disease's progression to vision impairment. Most currently available solutions are built using conventional image processing and machine learning methods. This paper applies the emerging vision transformer (ViT) model to the DR dataset with different optimizers. The dataset is available publicly and is highly imbalanced. The optimizers such as Adam (Adaptive moment estimation), Nadam (Nesterov Adam), and Follow the Regularized Leader (FTRL) are used for minimizing the loss function. A convolutional neural network (CNN) model is also implemented with different optimizers, and the results are compared with the ViT model. The Adam optimizer with the ViT model shows a better F1-score (0.732) than the CNN model.
成年人死于糖尿病是全球十大死因之一。糖尿病视网膜病变(DR)等眼部疾病在糖尿病患者中更为常见。DR对视网膜血管的损害可能导致视力下降。对DR的严重程度进行分级是帮助早期识别和治疗并阻止疾病发展为视力损害的关键步骤。目前大多数可用的解决方案都是使用传统的图像处理和机器学习方法构建的。本文采用不同的优化器对DR数据集进行了新兴视觉变换模型的应用。数据集是公开的,并且高度不平衡。优化器如Adam(自适应矩估计),Nadam (Nesterov Adam)和Follow The regularization Leader (FTRL)被用于最小化损失函数。采用不同的优化器实现了卷积神经网络(CNN)模型,并与ViT模型进行了比较。使用ViT模型的Adam优化器的f1得分(0.732)优于CNN模型。
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引用次数: 0
Impact of digitalization of public transport and city mobility on traffic structure and on-road emissions 公共交通和城市交通数字化对交通结构和道路排放的影响
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00019
Nikolay Netov, B. Lomev
Introducing digital services for urban and intercity mobility significantly influence the travel mode decisions of passengers. In order to analyze the changes in the transport habits of citizens triggered by the digitalization of public transport, we apply the Markov regime-switching model. The proposed approach has ability to indicate and model periods in the considered time series with substantial differences in their statistical characteristics, that makes it especially appropriate for estimation of business model innovation effect. In our case the Jacksonville Transportation Authority vehicle revenue miles negative trend turns to positive in the period after introducing digital services for their passengers. Our results demonstrate that introduction of digital services for passengers makes public transportation more attractive and increase the number of trips that use those transport modes compared to personal car usage. Observed shift of transport habits to lowemission travel modes reduces on-road emissions directly as well as indirectly by reducing congestion and time spent in traffic.
城市和城际交通数字化服务的引入显著影响了乘客的出行方式决策。为了分析公共交通数字化引发的市民出行习惯的变化,我们采用了马尔可夫状态切换模型。所提出的方法能够在考虑的时间序列中显示和建模具有统计特征显著差异的时期,这使得它特别适合于商业模式创新效果的估计。在我们的案例中,杰克逊维尔交通管理局在为乘客引入数字服务后,车辆收入里程的负趋势转为正趋势。我们的研究结果表明,与私家车相比,为乘客引入数字服务使公共交通更具吸引力,并增加了使用这些交通方式的旅行次数。观察到的交通习惯向低排放出行方式的转变,通过减少拥堵和在交通上花费的时间,直接或间接地减少了道路上的排放。
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引用次数: 0
Analysis and Development of an Algorithm to increase the Energy Efficiency of Electrical Street Lighting Systems Using an Artificial Neural Network 利用人工神经网络提高电力路灯系统能源效率的算法分析与开发
Pub Date : 2022-12-01 DOI: 10.1109/ELECS55825.2022.00031
E. Gospodinova
The purpose of this paper is to improve the energy efficiency of electric street lighting systems by developing methods for optimizing the parameters of its elements and energy-efficient control algorithms. To achieve this, an analysis of existing technical solutions and justification of the system of indicators was made; methods have been developed to optimize the parameters of the elements of the street network during its design or modernization. An algorithm for adjusting the power of street lighting installations using a neural network for predicting traffic intensity and an integrative algorithm for determining energy-efficient operation through two variables are proposed, combining the algorithms for selecting power according to the value of natural light and adjusting the mode of operation according to the traffic. A simulation model has been developed for the functioning of the street lighting electrical system, taking into account external influences. The training of the neural network was performed in the MATLab environment.
本文的目的是通过开发优化其元件参数和节能控制算法的方法来提高电力街道照明系统的能源效率。为此,对现有的技术解决办法进行了分析,并对指标制度进行了论证;在其设计或现代化过程中,已经开发了优化街道网络要素参数的方法。提出了一种基于预测交通强度的神经网络调节路灯装置功率的算法和一种基于两个变量确定节能运行的综合算法,将根据自然光值选择功率的算法和根据交通流量调整运行方式的算法相结合。在考虑外部影响的情况下,建立了路灯电气系统运行的仿真模型。在MATLab环境下对神经网络进行训练。
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引用次数: 0
期刊
2022 6th European Conference on Electrical Engineering & Computer Science (ELECS)
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