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2021 IEEE 3rd Eurasia Conference on IOT, Communication and Engineering (ECICE)最新文献

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Gesture-based Intention Prediction for Automatic Door Opening using Low-Resolution Thermal Sensors: A U-Net-based Deep Learning Approach 基于手势的低分辨率热传感器自动开门意图预测:一种基于u - net的深度学习方法
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645718
Sheng-Ya Chiu, Sheng-Yang Chiu, Yu-Ju Tu, Chi-I Hsu
Personal health consciousness has increased amid pandemics. The implementation of automatic doors could help stop the infection. The need for an intelligent sensor emerges for automatic doors to prevent unneeded open as well as customer privacy concerns. This research proposes a novel automatic door opening mechanism using a low-resolution thermal sensor, based on which a multi-task U-Net structure network is adopted to classify hand-raising gestures. With the aid of segmentation masking, there is 74% reduction of training steps for convergence than that of mere thermal image classification while maintaining similar classification performance. On-site deployment of this approach via constantly collecting door-opening misclassification cases for model improvement will lead to practical success in the near future.
在大流行期间,个人健康意识增强。自动门的实施可以帮助阻止感染。自动门需要智能传感器来防止不必要的打开以及客户隐私问题。本研究提出了一种基于低分辨率热传感器的自动开门机制,并在此基础上采用多任务U-Net结构网络对举手手势进行分类。在保持相似的分类性能的前提下,与单纯的热图像分类相比,使用分割掩蔽的收敛训练步骤减少了74%。通过不断收集开门错误分类案例来进行模型改进的现场部署,将在不久的将来导致实际的成功。
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引用次数: 2
[ECICE 2021 Front matter] [ECICE 2021前沿事项]
Pub Date : 2021-10-29 DOI: 10.1109/ecice52819.2021.9645685
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引用次数: 0
Study on Humidity Status Fuzzy Estimation of Low-power PEMFC Stack Based on the Softsensing Technology 基于软测量技术的小功率PEMFC堆湿度状态模糊估计研究
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645631
Litian Zhang, Caijun Rao, Chengxu Huang, Beitian Zheng, Sheng-Feng Lin, Wenyu Zhang, Jiaqi He, Baohua Tan
Internal humidity is an important parameter and strongly influences the life and performance of proton exchange membrane fuel cells. However, due to the particularity of the closed structure of the fuel cell, the existing tools and methods cannot directly measure it. Focusing on the low-power fuel cells stack, a method for estimating the humidity of fuel cells based on soft-sensing technology is proposed in this paper. After being combined with the basic concept of fuzzy mathematics, three parameters are taken as the input value of the fuzzy logic soft-sensing model, including the internal resistance, the sum of the initial open-circuit voltage and the battery voltage under the given load current, and the difference between the initial open-circuit voltage and the battery voltage under the given load current. Then the soft-sensing technology model has been established and trained, and the actual runtime data has been adopted to estimate the humidity status. The experimental results proofed and verified the method based on the soft-sensing technology.
内部湿度是影响质子交换膜燃料电池寿命和性能的重要参数。然而,由于燃料电池封闭结构的特殊性,现有的工具和方法无法对其进行直接测量。针对小功率燃料电池堆,提出了一种基于软测量技术的燃料电池湿度估计方法。结合模糊数学的基本概念,选取内阻、给定负载电流下初始开路电压与电池电压之和、给定负载电流下初始开路电压与电池电压之差三个参数作为模糊逻辑软测量模型的输入值。然后建立并训练软测量技术模型,并采用实际运行数据对湿度状态进行估计。实验结果验证了基于软测量技术的方法。
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引用次数: 0
Mining Money Transaction Path Based on Graph Computing with fuzzy Association Constraints 基于模糊关联约束的图计算货币交易路径挖掘
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645617
Jianying Xiong, H. Gong
With the rapid increase of economic crimes and the renovation of technology, it is a challenge to analyse the behaviour of capital transactions. A key problem is to infer the path of the capital transaction from the transaction network. Through the network computing theory, we evaluate the risk of the trading node by taking the node as the node weight of the path according to the risk value. According to the directivity of the path of fund transaction, we construct the constraints of account transaction association conditions, calculate the weight of fund transfer path under different constraints, and propose a network graph model combining the characteristics of node-set and transaction constraint rules. Compared with the traditional manual and fixed threshold mode, the model realizes the reasonable reasoning of the transaction path and provides technical support for illegal fund tracking.
随着经济犯罪的迅速增加和技术的革新,对资本交易行为的分析是一个挑战。一个关键问题是如何从交易网络中推断出资金交易的路径。通过网络计算理论,根据风险值将交易节点作为路径的节点权值,对交易节点的风险进行评估。根据资金交易路径的指向性,构造了账户交易关联条件的约束,计算了不同约束下资金转移路径的权重,提出了结合节点集特征和交易约束规则的网络图模型。与传统的人工和固定阈值模式相比,该模型实现了交易路径的合理推理,为非法资金跟踪提供了技术支持。
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引用次数: 0
[Copyright notice] (版权)
Pub Date : 2021-10-29 DOI: 10.1109/ecice52819.2021.9645715
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引用次数: 0
RPA and L-System Based Synthetic Data Generator for Cost-efficient Deep Learning Model Training 基于RPA和L-System的高效深度学习模型训练合成数据生成器
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645719
E. S., O. E. Ramos, Sixto Prado G.
Deep learning (DL) models applied to computer vision have made great progress for image-based plant phenotyping in recent years, mostly for quality control process automation in the agroindustry. On the one hand, these models are able to detect objects in complex and noisy images as fast as human observations, but on the other hand, they are trained with a large amount of labeled data for parameter tuning. This turns the training process into an expensive, repetitive, and time-consuming labor. In this work, a synthetic data generator based on robotic process automation (RPA) and Lindenmayer systems (L-Systems) named RPASD is designed and implemented to train a DL model that detects artichoke seedlings in images captured by a robot. First, the growth artichoke seedling is modeled in L+C language using the LStudio software. Second, the RPASD is developed in Python to produce labeled images of grouped synthetic artichoke seedlings that alongside manually labeled images of real artichoke seedlings, taken by a robot, form the PlantiNet database. Third, a YOLOv3 model is trained with the previously built databases forming three datasets: 1) real and synthetics seedlings, 2) only synthetic seedlings, and 3) only real seedlings. The results show a 55% of Mean Intersection over the Union (mIoU) when training only with the second dataset and testing with the third one, which allows us to conclude that our proposed method could adequately boost DL model training reducing costs and time.
近年来,深度学习(DL)模型应用于计算机视觉,在基于图像的植物表型分析方面取得了很大进展,主要用于农业工业的质量控制过程自动化。一方面,这些模型能够像人类观察一样快速地检测复杂和有噪声的图像中的物体,但另一方面,它们需要使用大量标记数据进行训练以进行参数调优。这就把培训过程变成了一项昂贵、重复和耗时的工作。在这项工作中,设计并实现了一个基于机器人过程自动化(RPA)和林登迈尔系统(L-Systems)的合成数据生成器RPASD,用于训练一个深度学习模型,该模型可以检测机器人捕获的图像中的洋蓟幼苗。首先,利用LStudio软件,用L+C语言对洋蓟幼苗生长过程进行建模。其次,RPASD是用Python开发的,用于生成分组合成洋蓟幼苗的标记图像,这些图像与机器人拍摄的人工标记的真正洋蓟幼苗图像一起形成PlantiNet数据库。第三,使用之前构建的数据库训练YOLOv3模型,形成三个数据集:1)真实和合成幼苗,2)仅合成幼苗,3)仅真实幼苗。结果显示,当仅使用第二个数据集进行训练并使用第三个数据集进行测试时,平均交集超过联合(mIoU)的55%,这使我们能够得出结论,我们提出的方法可以充分提高深度学习模型的训练,减少成本和时间。
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引用次数: 2
Parametric Analysis of a High-efficient Heat Exchanger 一种高效换热器的参数分析
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645603
Kai-Cheng Hsu, Chiu-Feng Lin, C. Tsai, T. Chen, Zi-Cheng Liu, Y. Hong
Due to the increasingly serious impact of environmental pollution in recent years, people’s awareness of environmental protection has also increased. Owing to the shortage of petrochemical fuels and the increase in prices, people are looking for alternative energy sources, while also trying to use renewable energy to reduce energy consumption rate and greenhouse gas emissions. According to the International Energy Agency (IEA) research on renewable energy and energy conservation technologies, it is expected to reduce 1.5 billion tons of CO2 Emissions by 2050 if people utilize energy regeneration technology and continue to improve its regeneration efficiency. Nowadays, many industries often use heat exchangers to recover heat energy, such as the petrochemical industry, steel industry, metal processing industry, and so on. When it comes to designing the heat exchanger, we need to consider its material and size and evaluate its heat transfer efficiency, pressure loss, and production cost. In this study, three types of heat exchangers with different geometrical shapes and fins are designed, which are flat fins, tail fins, and eye-shaped fins. The ANSYS/ FLUENT software is used to build models and simulate, mainly for the above three types. The heat transfer efficiency and pressure loss of heat exchangers with different geometrical fins are discussed. After simulation and comparison, the heat transfer efficiency of the flat fin is the best among the three types of fins, but the pressure loss is the largest, while the heat transfer efficiency of the eye-shaped fin is slightly lower than that of the flat fin, and the pressure loss is the smallest among the three fins. This study divides the enthalpy value of the air on the cold side by the pressure loss of the exhaust gas on the hot side and uses it as an index for comparing heat exchangers’ performance. The design of the heat exchangers is better if the index is higher. Among the three types of fins, the eye-shaped fins’ index value is the highest, followed by the tail-type fin, and the flat-type fin has the lowest value.
近年来,由于环境污染的影响日益严重,人们的环保意识也日益增强。由于石化燃料的短缺和价格的上涨,人们正在寻找替代能源,同时也试图使用可再生能源来降低能源消耗率和温室气体排放。根据国际能源机构(IEA)对可再生能源和节能技术的研究,如果人们利用能源再生技术并继续提高其再生效率,预计到2050年将减少15亿吨二氧化碳排放量。如今,许多行业经常使用热交换器来回收热能,如石油化工行业、钢铁行业、金属加工业等。在设计换热器时,我们需要考虑其材料和尺寸,并评估其传热效率,压力损失和生产成本。本研究设计了三种不同几何形状和翅片的换热器,分别是平鳍、尾鳍和眼形翅片。利用ANSYS/ FLUENT软件建立模型并进行仿真,主要针对以上三种类型。讨论了不同几何翅片换热器的换热效率和压力损失。经过模拟对比,三种翅片中,平板翅片的换热效率最好,但压力损失最大,而眼形翅片的换热效率略低于平板翅片,压力损失最小。本研究将冷侧空气的焓值除以热侧废气的压力损失,作为比较换热器性能的指标。指数越高,换热器的设计越好。在三种鳍型中,眼形鳍的指数值最高,尾型鳍次之,平型鳍的指数值最低。
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引用次数: 0
Combination of BP Neural Network and Logistic Regression its Application BP神经网络与逻辑回归的结合及其应用
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645605
Lei Wei, Yao He
Both BP neural network and logistic regression are widely applied in the field of nonlinear relationship analysis. This paper combines the logistic regression model and BP neural network for small sample prediction to establish a new nonlinear fitting model and apply it to practice. The new model effectively extracts the main control variables under multi-factor interference. The accuracy of the prediction model is further improved, which is highly consistent with the significance test of logistic regression.
BP神经网络和逻辑回归在非线性关系分析领域有着广泛的应用。将logistic回归模型与BP神经网络相结合,建立了一种新的小样本预测非线性拟合模型,并将其应用于实际。该模型能有效地提取多因素干扰下的主要控制变量。预测模型的准确性进一步提高,与logistic回归显著性检验高度一致。
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引用次数: 1
Development of the High Voltage DC Power Supply for X-ray Tube x射线管高压直流电源的研制
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645670
Yongfan Pu, Xubo Wei, Zhao Liu
A 350 kV/20 mA high voltage DC power supply for X-ray tube is designed to use as a control circuit with Digital Signal Processor (DSP). The power use the 380 V/50 Hz three-phase electric as input signal, and output high voltage via rectifier filter, full bridge inverter, transformer booster and voltage doubling rectifier. The inverter circuit implements voltage adjustment by generating SPWM of different duty ratios in DSP. The Maxwell software is employed to calculate the distribution of the electric field as designing the transformer, and the maximum field strength is 78.521 kV/mm in winding. It is available to design the layer insulation of transformer windowing with the polyimide film in accordance with the electric field. Voltage doubling rectifier circuit uses C - W positive and negative two-way voltage doubling rectifier circuit which is a wide application in X-ray Optical Source. The numerical simulation indicates that the overall design of power is legitimate and the parameters can reach the expected requirements.
设计了一种带数字信号处理器(DSP)的350 kV/20 mA x射线管高压直流电源作为控制电路。该电源采用380v / 50hz三相电作为输入信号,经整流滤波器、全桥逆变器、变压器升压和倍压整流器输出高压。逆变电路通过在DSP中产生不同占空比的SPWM来实现电压调节。在设计变压器时,利用Maxwell软件计算了变压器的电场分布,绕组中最大场强为78.521 kV/mm。利用聚酰亚胺薄膜可根据电场大小设计变压器开窗层绝缘。倍压整流电路采用C - W正负双向倍压整流电路,在x射线光源中应用广泛。仿真结果表明,电源总体设计合理,各项参数均达到预期要求。
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引用次数: 0
Different Concentrations of Carbon Nanotubes/Graphene and TiO2 Composite Photoanodes for Dye-sensitized Solar Cells 不同浓度的碳纳米管/石墨烯和TiO2复合光阳极用于染料敏化太阳能电池
Pub Date : 2021-10-29 DOI: 10.1109/ECICE52819.2021.9645717
Liangbo Peng, T. Wu
Dye-sensitized solar cells have the advantages of low material cost, easy process, and simple process equipment as one of the future green energy developments. As graphene has good electrical conductivity, thermal conductivity, high light transmittance, and low resistance, it is chosen as a photoanode material. Carbon nanotubes have high conductivity, high chemical stability, and excellent mechanical strength, and are suitable for dye-sensitized solar cells. In this study, by adding different concentrations of single-layer graphene and multi-layer carbon nanotubes to titanium dioxide, the effects of graphene and carbon nanotubes on the dye-sensitive battery under different concentrations were investigated. Doping graphene and carbon nanotube dye-sensitive cells in titanium dioxide is measured and compared with the dye-sensitive cells of graphene, carbon nanotubes, and carbon nanotubes/ graphene to analyze the three different processes. Dye-sensitive battery characteristics. The results of the study show that the carbon nanotube/graphene dye-sensitive battery at the same time, compared with the thin film coating doped only with carbon nanotubes and graphene. The surface of the working electrode is rough, which increases the light absorption rate. The increase in surface pores has increased the dye absorption, and the overall light conversion efficiency of the battery has been significantly improved.
染料敏化太阳能电池具有材料成本低、工艺简单、工艺设备简单等优点,是未来绿色能源的发展方向之一。由于石墨烯具有良好的导电性、导热性、高透光率、低电阻等特点,被选择作为光阳极材料。碳纳米管具有高导电性、高化学稳定性、优异的机械强度等特点,适用于染料敏化太阳能电池。本研究通过在二氧化钛中加入不同浓度的单层石墨烯和多层碳纳米管,考察了不同浓度下石墨烯和碳纳米管对染料敏电池性能的影响。对二氧化钛中掺杂石墨烯和碳纳米管的染料敏电池进行了测量,并与石墨烯、碳纳米管和碳纳米管/石墨烯的染料敏电池进行了比较,分析了三种不同的工艺。染料敏电池特性。研究结果表明,碳纳米管/石墨烯染料敏电池同时,与仅掺杂碳纳米管和石墨烯的薄膜涂层相比。工作电极表面粗糙,增加了光吸收率。表面孔隙的增加增加了染料的吸收,电池的整体光转换效率得到了显著提高。
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引用次数: 0
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2021 IEEE 3rd Eurasia Conference on IOT, Communication and Engineering (ECICE)
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