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2023 12th Mediterranean Conference on Embedded Computing (MECO)最新文献

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Forecasting of traffic variations from their preceding dynamics: Parametric vs non-parametric approaches 预测交通变化从他们之前的动态:参数与非参数方法
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10155105
Eugene O. Belyakin, Maria A. Markelova, M. Bogachev
Internet traffic intensity variations contain significant information on the access pattern dynamics. On the one hand, variability in access patterns is a direct manifestation of the end users' and IoT devices behavior. On the other hand, a better understanding of the access pattern dynamics provides essential information for an early redistribution of traffic, leading to potentially more efficient dynamic routing algorithms. Traffic in large networks is typically governed by a complex interplay of auto-and cross-correlation patterns that largely determine its non-stationary nature. Here we have considered two approaches to the identification of the traffic variation model. The first approach is parametric and focuses on fitting the parameters of Seasonal Auto Regressive Integrated Moving Average with exogenous factors (SARIMAX). The second approach is based on training of a recurrent neural network (RNN). Both approaches have been validated explicitly using traffic data records over several days of monitoring at the uplink of a local campus network.
互联网流量强度变化包含了访问模式动态的重要信息。一方面,访问模式的可变性是最终用户和物联网设备行为的直接表现。另一方面,更好地理解访问模式动态可以为流量的早期重新分配提供必要的信息,从而产生更有效的动态路由算法。大型网络中的流量通常由自动和相互关联模式的复杂相互作用控制,这些模式在很大程度上决定了其非平稳性质。在这里,我们考虑了两种方法来识别交通变化模型。第一种方法是参数化方法,重点是拟合带有外生因子的季节自回归综合移动平均(SARIMAX)参数。第二种方法是基于循环神经网络(RNN)的训练。这两种方法都通过对本地校园网上行链路进行数天监控的流量数据记录得到了明确的验证。
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引用次数: 0
IoT System for Real-Time Water Quality Measurement and Data Visualization 实时水质测量和数据可视化物联网系统
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10155050
Radmila Koleva, E. Zaev, D. Babunski, G. Rath, D. Ninevski
A prototype of a cheap IoT system for real-time monitoring of river water quality has been developed. The system consists of monitoring stations and appropriate presentation devices (computer, phone, or similar). Each monitoring station has a possibility for real-time measurement of 4 parameters: temperature, pH, turbidity, and dissolved oxygen. They are measured through probes submerged directly in the water. The probes are connected to the Raspberry Pi 3 model B, and through wi-fi communication, the measured data are transferred to the data storage cloud and then transferred to the visualization platform. The collected data in the IoT system is calculated and presented in real-time. Using real-time we can have instant information on the water quality and an alarm for possible contamination. Collected data on the remote server station can be used for deeper water quality analysis.
一种用于实时监测河流水质的廉价物联网系统的原型已经开发出来。该系统由监测站和适当的显示设备(计算机、电话或类似设备)组成。每个监测站都可以实时测量4个参数:温度、pH值、浊度和溶解氧。它们是通过直接浸入水中的探针来测量的。探头连接到树莓派3型号B,通过wi-fi通信,将测量数据传输到数据存储云,再传输到可视化平台。物联网系统中收集的数据是实时计算和呈现的。使用实时,我们可以获得水质的即时信息,并对可能的污染发出警报。远程服务站收集的数据可用于更深层次的水质分析。
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引用次数: 0
Performance Evaluation of A Cloud-based IoT Platform for Smart Cities: OpenCyberCity 基于云的智慧城市物联网平台性能评估:OpenCyberCity
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10154905
Maliha Tabassum, Nathan Puryear, M. Kuzlu, V. Jovanovic, S. Abdelwahed
With the increase of Internet of Things (IoT)-based platforms in different fields such as smart grids, cities, manufacturing, transportation, and healthcare, data collection and processing techniques have become more important, as their effectiveness impacts the performance of the overall system. In this paper, the IoT-based smart city platform, called OpenCyberCity, is evaluated in terms of scalability, reliability, and latency with millions of virtual IoT devices in a simulated environment. In order to improve the efficiency of these three parameters, the architecture suggests taking advantage of the MQTT protocol, Kafka data streaming, and Cassandra database, which are combined with a high-level program that is responsible for maintaining collaboration between them. According to the results, the proposed architecture can support at least one million IoT devices with 100% reliability for smart cities under the simulation environment.
随着基于物联网(IoT)的平台在智能电网、城市、制造、交通和医疗等不同领域的增加,数据收集和处理技术变得越来越重要,因为它们的有效性影响到整个系统的性能。在本文中,基于物联网的智慧城市平台OpenCyberCity在模拟环境中与数百万虚拟物联网设备一起评估了可扩展性,可靠性和延迟。为了提高这三个参数的效率,架构建议利用MQTT协议,Kafka数据流和Cassandra数据库,它们与负责维护它们之间协作的高级程序相结合。结果表明,在仿真环境下,所提出的架构可支持至少100万个物联网设备,且可靠性为100%,适用于智慧城市。
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引用次数: 1
Single Buffered Angular Speed Measurement Method for Self-Calibration of Magnetoresistive Sensors 磁阻传感器自校准的单缓冲角速度测量方法
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10155004
V. Ceperkovic, M. Prokin, D. Prokin
Automotive angle sensors with magnetoresistive (MR) technology are used for: steering angle, motor commutation, rotor and pedal positions, automotive wipers, brakes and air routing in ventilation systems. Self-calibration of MR sensors is performed by linear and harmonic compensation based on the angular speed of shafts measured by single buffered method.
具有磁阻(MR)技术的汽车角度传感器用于:转向角度,电机换向,转子和踏板位置,汽车雨刷,制动器和通风系统中的空气路径。基于单缓冲法测得的轴角速度,通过线性和谐波补偿实现磁流变传感器的自标定。
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引用次数: 0
Investigation of Characteristics of Sparse Antenna Systems 稀疏天线系统特性研究
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10154937
V. Volkov
The problem of forming a radar radiation pattern with a sparse linear antenna array is considered. Sparse structures based on the combination of homogeneous co-prime linear arrays are investigated. The method of forming virtual structures is explained. Using concrete examples, the shape and properties of the side lobes of the amplitude radiation pattern are investigated. The amplitude radiation patterns of two sparse arrays with the same number of physical elements and a conventional antenna with a phased array (FAR) are compared.
研究了用稀疏线性天线阵形成雷达辐射方向图的问题。研究了基于齐次共素线性阵列组合的稀疏结构。说明了虚拟结构的形成方法。通过具体实例,研究了幅值辐射图旁瓣的形状和性质。比较了具有相同物理单元数的两种稀疏阵列和传统相控阵天线的幅值辐射方向图。
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引用次数: 0
A Prediction Model of Smart Agriculture Based on IoT Sensor Data: A Systematic Literature Review 基于物联网传感器数据的智慧农业预测模型:系统文献综述
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10154965
Jakup Fondaj, Mentor Hamiti, Samedin Krrabaj, Jaumin Ajdari, Xhemal Zenuni
In recent years we have faced drastic climate change which have affected various areas of life but especially those of agronomy. The most critical factor for grape quality and quantity is climate changes. Sensing devices are helping different sectors, especially in agriculture, the data are transferred throw Internet protocols and the field is known as Internet of Things. The fact of collecting IoT sensor Data from SmartAgriculture and SmartCity sensors is known as “smart agriculture” which consists of activities such as monitoring of cultivation, identification of diseases, define the period of time for fertilization of agriculture products, etc. This paper presents a systematic literature review to identify main researches in this field and further developments. According to prior observation of published research conducted since 2018, we are focusing our research on studies that have been published in areas that are relevant to smart agriculture; data mining for smart agriculture; predictive algorithms for smart agriculture; predictive model of smart agriculture on IoT sensor data and smart agriculture and IoT technologies. The number of papers in this field is huge for this reason is very important to conduct a review to see current development and find key components for future works.
近年来,我们面临着剧烈的气候变化,它影响了生活的各个领域,尤其是农业领域。影响葡萄质量和数量的最关键因素是气候变化。传感设备正在帮助不同的部门,特别是在农业领域,数据通过互联网协议传输,该领域被称为物联网。从智慧农业和智慧城市传感器收集物联网传感器数据的事实被称为“智慧农业”,其中包括监测种植,识别疾病,确定农产品施肥周期等活动。本文对该领域的主要研究和未来发展进行了系统的文献综述。根据之前对2018年以来发表的研究成果的观察,我们的研究重点是在智慧农业相关领域发表的研究;智能农业数据挖掘;智能农业预测算法;基于物联网传感器数据的智慧农业预测模型以及智慧农业和物联网技术。该领域的论文数量巨大,因此进行综述以了解当前的发展情况并找到未来工作的关键组成部分非常重要。
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引用次数: 0
Minimizing the Total Completion Time of Jobs for a Permutation Flow-Shop System 最小化置换流水作业系统的总完成时间
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10155103
A. M. Gruzlikov
The paper considers the problem of minimizing the sum of completion times in a permutation flow-shop system. It is known that the problem under consideration cannot be approximated in polynomial within arbitrarily good precision (the problem belongs to the APX-hard class). The problem is common in some manufacturing environments and for information processing systems. The proposed approach is based on the concept of solvable class of systems, for which an optimal scheduling algorithm of polynomial complexity exists. The paper presents the results of a computational experiment using Taylard's tests for pipeline-type systems and for systems defined by an acyclic graph.
研究了置换流水车间系统中完工时间总和的最小化问题。已知所考虑的问题不能在任意好的精度内用多项式逼近(该问题属于APX-hard类)。这个问题在一些制造环境和信息处理系统中很常见。该方法基于可解系统的概念,存在一个多项式复杂度的最优调度算法。本文给出了用Taylard试验对管道型系统和由无循环图定义的系统进行计算实验的结果。
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引用次数: 0
Binary Search based Maximum Power Point Tracking Algorithm for Photovoltaic System 基于二叉搜索的光伏系统最大功率点跟踪算法
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10155099
Haris Muhović, Almedin Salkić, Emina Melic, Neira Džananović, M. Saric, D. Jokić, S. Lale
This paper presents the implementation of the Binary Search Algorithm (BSA) to determine the Maximum Power Point (MPP) of a photovoltaic (PV) system under variable weather conditions. Additionally, the conventional well-known Perturb and Observe (P&O) algorithm is also implemented to be compared with the binary search based Maximum Power Point Tracking (MPPT) algorithm. Both algorithms are implemented in real time in MATLAB/Simulink environment. The experimental study is performed using the two 260 W series connected PV modules, the buck converter, and Humusoft MF 634 card to enable real-time operation. The value of the duty cycle for the buck converter is being updated in each step moving the operation point closer to MPP. The obtained experimental results demonstrate that the binary search based MPPT algorithm is more efficient and accurate when compared to the P&O MPPT algorithm.
本文提出了在可变天气条件下确定光伏发电系统最大功率点(MPP)的二叉搜索算法(BSA)。此外,还实现了传统的Perturb and Observe (P&O)算法,并与基于二叉搜索的最大功率点跟踪(MPPT)算法进行了比较。两种算法均在MATLAB/Simulink环境下实时实现。实验研究采用两个260 W串联的光伏模块、降压变换器和Humusoft MF 634卡进行实时操作。降压转换器的占空比的值在每一步中都在更新,使工作点更接近MPP。实验结果表明,与P&O MPPT算法相比,基于二叉搜索的MPPT算法具有更高的效率和准确性。
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引用次数: 0
Fully Autonomous Ship - Will AI Make “Machine Errors” or Will They Human Errors in a New Form? 完全自主的船——人工智能会犯“机器错误”还是会以一种新的形式犯人类错误?
Pub Date : 2023-06-06 DOI: 10.1109/meco58584.2023.10154946
A. Alop
It is known that the cause of most accidents and incidents at sea is, to one degree or another, either directly or indirectly, the so-called human factor. During the last years, more and more people have started to look towards solutions that can significantly reduce or even eliminate the negative consequences of human characteristics; one such solution is believed to be the partial or complete replacement of humans on board with “smart” technologies, such as artificial intelligence (AI). Here, however, two questions arise: the first - will the complete exclusion of people from the game can bring the desired result and is it even possible? And the second - can “smart” machines make their own, specific, so-called machine errors, and should these machine errors be preferred to human errors, or can their consequences be as severe as those caused by humans? The author of the paper tries to discuss the raised questions, looking for answers, even in a preliminary and imperfect form.
众所周知,大多数海上事故和事件的原因,在某种程度上,直接或间接,是所谓的人为因素。在过去的几年里,越来越多的人开始寻求能够显著减少甚至消除人类特征的负面影响的解决方案;其中一个解决方案被认为是用人工智能(AI)等“智能”技术部分或完全取代船上的人类。然而,这里出现了两个问题:第一,将人完全排除在游戏之外是否会带来预期的结果,甚至可能吗?第二个问题是,“智能”机器能制造自己的、特定的、所谓的机器错误吗?这些机器错误应该比人类错误更受欢迎吗?还是它们的后果会像人类造成的后果一样严重?本文的作者试图讨论提出的问题,寻找答案,即使在一个初步的和不完善的形式。
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引用次数: 0
Optimal Control of State-Space Systems with Hard Bounds on Control Inputs and State Variables 控制输入和状态变量有硬界的状态空间系统的最优控制
Pub Date : 2023-06-06 DOI: 10.1109/MECO58584.2023.10154995
M. Harker, G. Rath, John W. Handler
This paper presents a new numerical method for treating the problem of optimal control when there are hard bounds on the control variables (e.g., limit switches on a linear drive, current limits to motor input, etc.) and/or on the state/output variables (e.g., obstacle avoidance). This is accomplished by means of a new approach for discretizing the optimal control problem, while introducing regularization terms to reduce the solution space to smooth functions. Further, by introducing a consistent discretization of the state-space equations with arbitrary boundary conditions, the problem is cast as a problem of quadratic programming, whereby (hard) bounds can be put on any of the state-space variables (i.e., input or output). The method is demonstrated on the example of a pendulum on a cart. Bounded optimal control solutions are computed for two examples: Velocity bounds are placed on the cart in the classic optimal control problem; a variation of trajectory tracking where instead of specifying a single valued path, the bounds of the trajectory of the pendulum bob are specified, and the required input to keep the bob within these bounds during its motion is computed.
本文提出了一种新的数值方法,用于处理控制变量(如线性驱动器的限位开关、电机输入的电流限制等)和状态/输出变量(如避障)存在硬边界时的最优控制问题。这是通过一种新的离散化最优控制问题的方法来实现的,同时引入正则化项来缩小光滑函数的解空间。此外,通过引入具有任意边界条件的状态空间方程的一致离散化,该问题被转换为二次规划问题,其中(硬)边界可以放在任何状态空间变量(即输入或输出)上。以小车摆为例,对该方法进行了验证。计算了两个实例的有界最优控制解:在经典最优控制问题中,在小车上设置速度边界;轨迹跟踪的一种变化,其中不是指定一个单值路径,而是指定摆锤轨迹的边界,并计算在其运动期间保持摆锤在这些边界内所需的输入。
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引用次数: 0
期刊
2023 12th Mediterranean Conference on Embedded Computing (MECO)
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