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2019 IEEE 11th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management ( HNICEM )最新文献

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Performance Evaluation of a Synchronous DC-DC Boost Converter with Adjustable Output Current 输出电流可调的同步DC-DC升压变换器的性能评价
Myla B. Cabanada, Jesus M. Martinez, Eryl Nico Morales, Flordeliza L. Valiente, Oliver Mallari
The research aims to implement a 450Watts synchronous DC-DC boost converter with an adjustable output current operation. A unit was built and tested. The power supply unit (PSU) was designed for battery charging applications and designed to perform in continuous conduction mode and to operate at two modes: constant-voltage (CV) and constant-current (CC). Initially the PSU was operating at CV Mode. Once the PSU reached the current limit, power supply operates at constant current mode, the power supply acts as a current source with varying output voltage depending on the value of the load resistance. The PSU uses the inherent fault protections of main controller such as cycle-by-cycle current limiting, inrush current limiting, hiccup mode short circuit/overload protection, and the researchers implement over-voltage protection (OVP), over-temperature protection (OTP), and reverse polarity protection (RPP) by using additional comparator circuitry. The results presented in this study show that the design is has a regulated output voltage of 53.9V with maximum of 236mV peak-to-peak voltage ripple and 120mA peak-to-peak current ripple which was measured at full load condition. Through the constant voltage test, the unit can maintain a constant output current from 2A up to 8A by adjusting the potentiometer. The 96% efficiency was achieved at 3A load from an input voltage range of 11.34V to 13.86V.
该研究旨在实现具有可调输出电流操作的450瓦同步DC-DC升压转换器。制造并测试了一个单元。电源单元(PSU)是为电池充电应用而设计的,设计用于连续传导模式,并在两种模式下工作:恒压(CV)和恒流(CC)。最初,PSU在CV模式下工作。一旦PSU达到电流极限,电源在恒流模式下工作,电源作为电流源,根据负载电阻的值产生不同的输出电压。PSU使用主控制器固有的故障保护,如周期限流、涌流限流、打嗝模式短路/过载保护,研究人员通过使用额外的比较器电路实现过压保护(OVP)、过温保护(OTP)和反极性保护(RPP)。本研究结果表明,该设计具有53.9V的稳压输出电压,最大电压峰纹波为236mV,最大电流峰纹波为120mA,在满载状态下测量。通过恒压测试,通过调整电位器,可保持输出电流从2A到8A的恒定。在输入电压范围为11.34V至13.86V的3A负载下,效率达到96%。
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引用次数: 0
Development of Charge Level Monitoring of Lead-Acid Battery Bank for PV System using Fuzzy Logic in LabView 在LabView中应用模糊逻辑开发光伏系统铅酸蓄电池组电量监测
Leonardro A. Venancio, Armyn C. Sy, R. Bedruz, E. Dadios
This paper presents a charge level monitoring system for lead acid battery bank in Solar Panel setup. The research implements the approximate linear relationship between the charge level and the current-voltage for lead acid batteries. Prediction method utilizes is the objective fuzzy logic approach. Both the interphase of the instrument and the fuzzy system together with the fuzzy rule system were created using LabView. Dataset used is based on an actual 12-hour data gathering of charging cycle and current-voltage readings. Simulation results show that the developed system generated correctly the charge level of the battery using only the instantaneous voltage and current readings from the sensors.
介绍了一种太阳能电池板安装中铅酸蓄电池组的电量监测系统。研究实现了铅酸电池的充电电平与电流电压之间的近似线性关系。预测方法采用的是客观模糊逻辑方法。利用LabView建立了仪器的界面、模糊系统和模糊规则系统。使用的数据集是基于实际的12小时充电周期和电流-电压读数的数据收集。仿真结果表明,所开发的系统仅使用传感器的瞬时电压和电流读数就能正确地生成电池的充电水平。
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引用次数: 0
YOLO-based Threat Object Detection in X-ray Images 基于yolo的x射线图像威胁目标检测
Reagan L. Galvez, E. Dadios, A. Bandala, R. R. Vicerra
Manual detection of threat objects in an X-ray machine is a tedious task for the baggage inspectors in airports, train stations, and establishments. Objects inside the baggage seen by the X-ray machine are commonly occluded and difficult to recognize when rotated. Because of this, there is a high chance of missed detection, particularly during rush hour. As a solution, this paper presents a You Only Look Once (YOLO)based object detector for the automated detection of threat objects in an X-ray image. The study compared the performance between using transfer learning and training from scratch in an IEDXray dataset which composed of scanned Xray images of improvised explosive device (IED) replicas. The results of this research indicate that training YOLO from scratch beats transfer learning in quick detection of threat objects. Training from scratch achieved a mean average precision (mAP) of 45.89% in 416×416 image, 51.48% in 608×608 image, and 52.40% in a multi-scale image. On the other hand, using transfer learning achieved only an mAP of 29.54% while 29.17% mAP in a multi-scale image.
对于机场、火车站和其他场所的行李检查人员来说,用x光机手动检测威胁物体是一项乏味的任务。x光机看到的行李内的物体通常是闭塞的,旋转时难以识别。正因为如此,漏检的几率很高,尤其是在高峰时段。作为解决方案,本文提出了一种基于YOLO (You Only Look Once)的目标检测器,用于自动检测x射线图像中的威胁目标。该研究比较了在iedx射线数据集中使用迁移学习和从头开始训练的性能,该数据集由简易爆炸装置(IED)复制品的扫描x射线图像组成。研究结果表明,在快速检测威胁目标方面,从头开始训练YOLO优于迁移学习。从头开始训练的平均精度(mAP)在416×416图像上达到45.89%,在608×608图像上达到51.48%,在多尺度图像上达到52.40%。另一方面,使用迁移学习的mAP仅为29.54%,而多尺度图像的mAP为29.17%。
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引用次数: 9
Understanding Anonymous Social Media Posts using Topic Modeling 使用主题建模理解匿名社交媒体帖子
John Daniel M. Valencia, Al Joseph T. Laure, Niño Mark R. Centino, Bernie S. Fabito, Joseph Marvin Imperial, Ramon L. Rodriguez, Angelica De La Cruz, Manolito V. Octaviano, Marilou N. Jamis
Social Media holds a substantial amount of text data that can help organizations better understand their clients. For students of National University (NU) – Manila, Facebook serves as a medium to express their opinions and create topics for discussion that may generally speak about the University. Through Topic Modeling using Latent Dirichlet Allocation (LDA), various experiments were conducted to identify the topics discussed by the students based on the highest coherence score value obtained. From these experiments, a total of twenty (20) topics with Alpha and Beta values set to one (1) revealed the highest coherence. The topics were labeled and revealed interesting insights. Personal relationships and school-related concerns were the common topics posted on the two Facebook pages. To further improve the study, a chronological approach for topic modeling is recommended.
社交媒体拥有大量的文本数据,可以帮助组织更好地了解他们的客户。对于国立大学(NU) -马尼拉的学生来说,Facebook是他们表达意见和创造讨论话题的媒介,这些话题通常都是关于大学的。通过使用潜狄利克雷分配(Latent Dirichlet Allocation, LDA)进行话题建模,根据获得的最高连贯分值进行各种实验来识别学生讨论的话题。从这些实验中,Alpha和Beta值为1(1)的共有20个主题显示出最高的一致性。这些话题被贴上了标签,并揭示了有趣的见解。个人关系和与学校有关的担忧是这两个Facebook页面上发布的常见话题。为了进一步完善研究,建议采用时间顺序的方法进行主题建模。
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引用次数: 3
Automated Short-Term Load Forecasting Using Modified Stochastic Hour Ahead Proportion (SHAP) Analysis 基于改进的随机小时前比例(SHAP)分析的短期负荷自动预测
Adrian Jose D. Antoja, Patrick Amiel O. Lafamia, Clarizza Allen B. Yang, G. Magwili, R. Santiago
The accuracy of the electricity demand forecast is important in the operations of a power system. The objective of this paper is to generate an automated forecast model with better accuracy than its predecessors. The Automated ShortTerm Load Forecasting Using Modified Stochastic Hour Ahead Proportion (SHAP) Analysis is generated using the C# program. The constructed application would then use an excel spreadsheet to input data. Therefore, the data would be used as a basis for the construction of the forecast model. The output would then display the equation and the graph of the constructed forecast model. Based on the output of the program, the generated forecast model has a MAPE and SDE value of 0.941725 and 1.149855 respectively. The MAPE and SDE value of the generated forecast model is significantly lower than the MAPE and SDE values of the SHAP, WMA, SHAP-WMA which are 3.765681 and 2.822254, 5.610123 and 10.312887, 3.278946 and 3.055406 respectively. This comparison shows that the Modified SHAP Analysis is statistically better than its predecessors.
电力需求预测的准确性对电力系统的运行至关重要。本文的目标是生成一个比以前的预测模型具有更好精度的自动预测模型。使用改进的随机提前小时比例(SHAP)分析的自动短期负荷预测是使用c#程序生成的。然后,构建的应用程序将使用excel电子表格输入数据。因此,这些数据将作为构建预测模型的基础。然后输出将显示构建的预测模型的方程和图形。根据程序输出,生成的预测模型MAPE为0.941725,SDE为1.149855。生成的预测模型的MAPE和SDE值显著低于SHAP、WMA、SHAP-WMA的MAPE和SDE值(分别为3.765681和2.822254、5.610123和10.312887、3.278946和3.055406)。这一比较表明,改进的SHAP分析在统计上优于其前身。
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引用次数: 3
Public and Private Vehicle Quantification and Classification using Vehicle Detection and Recognition 基于车辆检测与识别的公私车辆量化与分类
L. Ambata, Isabel Angela P. del Castillo, Jeremiah Rod H. Jacinto, Cellix Mark T. Santos
Traffic congestion in the Philippines is diverse consisting public and private vehicles. One approach of this is to design a system that can count, detect, recognize, and classify public and private vehicles from a surveillance video. This research introduces the development of the said system, to be used as a statistical data for implementing traffic rules. The dataset the researchers used consists of 13,600 images: 10,880 images for training and 2,720 images for testing. These were obtained from a gas station video source, for the vehicles frequently passing though in a gas station. The researchers used an algorithm called Convolutional Neural Network for the detecting and classifying vehicles.
菲律宾的交通拥堵是多种多样的,包括公共和私人车辆。其中一种方法是设计一个系统,可以从监控视频中对公共和私人车辆进行计数、检测、识别和分类。本研究介绍了该系统的开发过程,作为交通规则实施的统计数据。研究人员使用的数据集由13600张图像组成:10880张用于训练,2720张用于测试。这些是从加油站的视频源中获得的,用于经常经过加油站的车辆。研究人员使用了一种称为卷积神经网络的算法来检测和分类车辆。
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引用次数: 2
A Fuzzy Logic Approach for Fish Growth Assessment 鱼类生长评价的模糊逻辑方法
Jo-Ann V. Magsumbol, Vincent Jan D. Almero, Marife A. Rosales, A. Bandala, E. Dadios
Smart aquaculture is making a name these days due to an ever-increasing demand for an alternative source of protein, fatty acids, vitamins, minerals and essential nutrients, which make it superior over animal meat. To address the rising demand for healthy source of meat, aqua farmers adapt methods wherein they can increase the fish supply all year round. This paper makes use of the fuzzy logic system to identify the current growth stage of carp fish in the pond. The output of the system will be used as an actuator for the feeder system in the aquafarm. Results show that the system successfully identified the current status of the fish in the study.
由于对蛋白质、脂肪酸、维生素、矿物质和必需营养素的替代来源的需求不断增加,智能水产养殖目前正在崭露头角,这使其优于动物肉类。为了满足对健康肉类来源不断增长的需求,水产养殖户采用了可以全年增加鱼类供应的方法。本文利用模糊逻辑系统对塘内鲤鱼的生长阶段进行了识别。该系统的输出将用作水产养殖场喂料系统的执行器。结果表明,该系统成功地识别了研究中鱼类的当前状态。
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引用次数: 3
Optimal Synthesis of Algal Biorefineries for Biofuel Production Based on Techno-Economic and Environmental Efficiency 基于技术经济和环境效率的生物燃料生产藻类生物精炼厂的优化合成
A. Culaba, J. Juan, P. M. Ching, A. Mayol, E. Sybingco, A. Ubando
Biomass derived from microalgae is an emerging technology and attractive alternative source for biofuels. However, its exclusive production cannot be feasibly commercialized because of economic and environmental sustainability issues. The biorefinery concept allows microalgae to be efficiently converted into biofuels and other high-valued products, such as cosmetics, nutraceuticals, and pharmaceuticals. Nonetheless, this venture would require large capital investments that must be strategically scheduled across the lives of the investments, while keeping a reliable forecast of market growth. A multi-period multi-objective mixed integer non-linear programming (MINLP) model is proposed in this study to determine optimal investment schedule and operational decisions that would simultaneously maximize the net present value (NPV) and minimize the greenhouse gas (GHG) emissions of an algal biorefinery. An illustrative case study and scenario analyses demonstrate the validity and the capabilities of the proposed model.
从微藻中提取的生物质是一种新兴技术,也是一种有吸引力的生物燃料替代来源。然而,由于经济和环境可持续性问题,其独家生产无法实现商业化。生物炼制概念允许微藻有效地转化为生物燃料和其他高价值产品,如化妆品、保健品和药品。尽管如此,这个项目需要大量的资本投资,这些投资必须在投资的整个生命周期内进行战略规划,同时保持对市场增长的可靠预测。本文提出了一个多周期多目标混合整数非线性规划(MINLP)模型,以确定藻生物精炼厂的最佳投资计划和运营决策,同时使净现值(NPV)最大化,温室气体(GHG)排放最小化。一个说明性的案例研究和场景分析证明了所提出模型的有效性和能力。
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引用次数: 7
Utilization of Food Waste as Materials for Composite Plastic Tile 餐厨垃圾作为复合塑料瓦材料的利用
Wilfredo A. Claur, Jessa Cristie Montaño, Ezyl Sarita, Andrew Gumawa, Joevan Guilleran, K. Caceres, Adrian Langcoy, Krizia Marie Monotillia, Karce Ortiz, Mark Rioffer, Jinky Damas, Jerson Mag-aso, Ahenor Almaquer
Nature has a lot to offer to people. Source of food and income are just few. Waste from natural sources of food is abundant in coastal areas where the source of living is fishing. The study is focused on utilizing food waste from Cerastoderma edule commonly known in the Philippines as Litob and river sand as additives in making recycled (high density polyethylene) HDPE composite plastic tiles. The researchers prepared the materials according to the set conditions. Composite plastic tiles made of remoulded HDPE plastic, river sand and Cerastoderma edule shells were fabricated in five different proportions. It was found out that the composite plastic tile with 40:30:30 ratio by mass inhibits the best characteristics in terms of average density, thermal resistance, and impact strength. The study shows that we can be able to make useful building materials such composite plastic tile from shells, river sand and HDPE plastic.
大自然给人们提供了很多东西。食物和收入来源很少。在以捕鱼为生活来源的沿海地区,自然食物来源产生的废物很多。该研究的重点是利用菲律宾俗称为Litob和河沙的食物垃圾作为添加剂,生产可回收的(高密度聚乙烯)HDPE复合塑料砖。研究人员根据设定的条件制备了材料。以高密度聚乙烯(HDPE)塑料、河砂和贝壳为原料,按五种不同的比例制成复合塑料瓦。结果表明,质量比为40:30的复合塑料瓦在平均密度、耐热性和冲击强度方面具有最佳性能。研究表明,我们可以用贝壳、河砂和HDPE塑料制作有用的建筑材料,如复合塑料瓦。
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引用次数: 0
Use of Artificial Neural Network in the Estimation of Detonation Velocity for Tetranitromethane-Nitrobenzene Mixture 人工神经网络在四硝基甲烷-硝基苯混合物爆速估算中的应用
D. G. Evangelista, Dr. Ryan Rhay Vicerra, Dr. Argel A. Bandala
Detonation velocity or rate of energy release is an important property to consider when rating an explosive. It is a critical parameter used for estimating explosive performance as it can indicate the intensity of detonation. The purpose of this research study is to propose an artificial neural network model that would aid in the estimation of detonation velocities of a high explosive specifically, tetranitromethane-nitrobenzene (TNM/NB) mixture, with varying parameters
爆速或能量释放率是评定炸药等级时要考虑的一个重要特性。它是估计炸药性能的一个关键参数,因为它可以表示爆轰的强度。本研究的目的是提出一个人工神经网络模型,该模型将有助于估计具有不同参数的高炸药,特别是四硝基甲烷-硝基苯(TNM/NB)混合物的爆轰速度
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引用次数: 1
期刊
2019 IEEE 11th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management ( HNICEM )
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