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2019 Research, Invention, and Innovation Congress (RI2C)最新文献

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Cost Optimization Model for Plant Assignment in Industrial Estate Planning 工业园区规划中厂房配置的成本优化模型
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999945
Niroot Wattanasaeng, K. Ransikarbum
Many countries, including Thailand, have recently supported and promoted the establishment of economic zones to encourage economic growth in various industries. Key factors for determining the locations of industrial plants in an industrial estate are related to total investment cost, which pertains to land, building, energy, and facilities that are built into the system. However, existing studies are scarce, therefore in this study, we develop a model for determining the plant-layout assignment in an exemplified industrial estate. The single-objective Mixed Integer Linear Optimization Programming (MILP) approach isused to evaluate cost minimization under a number of confining requirements. The model is verified through the demonstrated case study using an area of the industrial estate by classifying the factory types into 4 categories, which are 1) toxic-related industry, 2) general industry, 3) warehouse, and 4) office center (i.e. safe zone). The initial results illustrate that industrial plants in an industrial estate that are found close to the office zone with respect to the desired cost minimization.
包括泰国在内的许多国家最近都支持和推动建立经济区,以鼓励各行业的经济增长。决定工业园区中工业厂房位置的关键因素与总投资成本有关,总投资成本涉及土地、建筑、能源和系统内建的设施。然而,现有的研究很少,因此在本研究中,我们建立了一个模型来确定一个典型的工业园区的工厂布局分配。采用单目标混合整数线性优化规划(MILP)方法来评估约束条件下的成本最小化问题。通过一个工业园区的示范案例研究,将工厂类型分为4类,即1)有毒相关工业,2)一般工业,3)仓库和4)办公中心(即安全区),从而验证了该模型。初步结果表明,在靠近办公区的工业区中,工业厂房可以实现所需的成本最小化。
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引用次数: 6
Droplet Detection with Interdigitated Capacitor Sensor 交叉式电容传感器液滴检测
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999905
T. Satitchantrakul, W. Jeamsaksiri, S. Chalermwisutkul
The capacitive sensor designed based on interdigitated capacitor is studied as one of the methods to detect size and speed of droplets, which can be further applied in Lab-on-a-chipl microfluidic systems. The interdigitated capacitors in millimeter regime are studied, analyzed, designed, implemented and measured. The results of both simulation and measurement showed similar capacitance values. Then, the micrometer-scaled sensor is designed for further implementation with the silicon process. The Capsense evaluation board with capacitance to digital reader are used to monitor the capacitance from interdigitated capacitor. The principle to calculate speed and size of the droplets are also provided.
研究了基于交叉电容设计的电容式传感器作为液滴尺寸和速度检测方法之一,该传感器可进一步应用于微流控系统。对毫米级交叉电容进行了研究、分析、设计、实现和测量。仿真和实测结果显示电容值相近。然后,设计了微米级传感器,以进一步实现硅工艺。使用电容到数字阅读器的Capsense评估板来监测交叉电容的电容。给出了计算液滴速度和大小的原理。
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引用次数: 2
Environment Generation from Real Map to Investigate Path Planning and Obstacle Avoidance Algorithm for Electric Vehicle 基于真实地图的环境生成研究电动汽车路径规划与避障算法
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999876
Rapas Udomsil, T. Sangpet, Temsiri Sapsaman
The use of autonomous vehicles is expected to become common in various applications. Tremendous research studies are being made on automated movement, which requires path planning and obstacle avoidance algorithms to plan trajectories. However, an appropriate algorithm must be carefully selected before the implementation of a real system. Therefore, this paper presents the developed software that generates a virtual environment to investigate path planning and obstacle avoidance algorithms. This software consists of the simulation model of a motor-driven electric vehicle, in which vehicle and sensor parameters and algorithms for path generation and obstacle avoidance can be redefined. For practicability and visualization, the software generates a 3D virtual testing environment using real maps from Google map and the Unity 3D engine. The test is performed on a small four-wheeled electric vehicle in the environment with and without an obstacle and A* algorithm is used.
预计自动驾驶汽车将在各种应用中变得普遍。人们对自动运动进行了大量的研究,这需要路径规划和避障算法来规划轨迹。然而,在实际系统实现之前,必须仔细选择合适的算法。因此,本文开发了一种生成虚拟环境的软件,用于研究路径规划和避障算法。该软件由电动汽车仿真模型组成,其中车辆和传感器参数以及路径生成和避障算法可以重新定义。为了实用性和可视化,该软件使用来自Google地图和Unity 3D引擎的真实地图生成3D虚拟测试环境。在一辆小型四轮电动汽车上,在有障碍物和无障碍物的环境中进行测试,使用a *算法。
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引用次数: 1
Model-Free Control of Multiphase Interleaved Boost Converter for Fuel Cell/Reformer Power Generation 燃料电池/重整发电用多相交错升压变换器的无模型控制
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999919
P. Mungporn, B. Yodwong, P. Thounthong, B. Nahid-Mobarakeh, N. Takorabet, D. Guilbert, P. Kumam, N. Bizon, Chaiyut Kaewprapha
Fundamentally, a fuel cell (FC) power source is connected with a power switching dc/dc converter. This type of network is a nonlinear manner. A linearized approach is frequently employed to investigate the convergence issue and to set the regulation parameters. In this document, a model-free control (MFC) theory based on the ultra-local model is studied to control the FC power for dc microgrid applications. A proposed parallel 2-phase boost converter with interleaving algorithm is selected to step-up a low output dc voltage of fuel cell to a utilized dc grid level. Using the MFC approach, we put forward simple solutions to nonlinear control problems in power electronics domain. To corroborate the proposed scheme, a dc/dc power converter (2.5-kW two-modules in parallel) is implemented in the laboratory. The studied control law based on the MFC characteristic is realized by fully digital calculation in a dSPACE MicroLabBox platform. Simulation and experimental results with a FC (2.5 kW, 50 V) with hydrogen supplied by a reformer reactor of in the laboratory substantiate the exceptional control scheme.
基本上,燃料电池(FC)电源与功率开关dc/dc转换器相连。这种类型的网络是一种非线性方式。通常采用线性化方法来研究收敛性问题和设置调节参数。本文研究了一种基于超局部模型的无模型控制(MFC)理论,用于直流微电网的FC功率控制。提出了一种采用交错算法的并联两相升压变换器,将燃料电池的低输出直流电压升压到已利用的直流电网水平。利用MFC方法,对电力电子领域的非线性控制问题提出了简单的解决方案。为了验证所提出的方案,在实验室中实现了一个dc/dc功率转换器(2.5 kw双模块并联)。所研究的基于MFC特性的控制律在dSPACE MicroLabBox平台上通过全数字化计算实现。模拟和实验结果证实了该特殊控制方案的可行性。实验中,FC (2.5 kW, 50 V)由重整反应器供氢。
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引用次数: 9
Millimeter-wave Dual-Function Hollow Metal Waveguide to Microstrip Transition and Bandpass Filter based on ENZ Metamaterial 基于ENZ超材料的毫米波双功能空心金属波导微带跃迁与带通滤波器
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999915
B. Hong, Lei Sun, Guo Ping Wang, R. Richardson, N. Chudpooti, I. Robertson, N. Somjit
This paper presents a novel design of a millimeterwave dual-function in-plane hollow metal waveguide to microstrip transition and bandpass filter based on epsilon-near-zero (ENZ) metamaterial. A hollow metallic rectangular waveguide (HMRW) that operates near its cut-off frequency of the fundamental TE10 mode is used to mimic the ENZ metamaterial, allowing the wave to tunnel through the waveguide with an effectively infinite phase-velocity. As a waveguide transition, the ENZ waveguide directly interconnects HMRW and microstrip in the same plane with a minimum insertion loss of 0.7 dB at the 33.06 GHz, overcoming the significant impedance mismatch and geometry difference between HMRW and Microstrip. As a bandpass filter, the design has a near-flat passband with the minimum insertion loss of 0.7 dB and a bandwidth of 1.31 GHz centered at 32.96 GHz, which leads to a Q-factor of 25.17. The work offers a step towards a novel dual-function waveguide transition and bandpass filter that can be used in a variety of functional components for millimeter-wave multichip modules and hybrid integrated circuits.
本文提出了一种基于epsilon-近零(ENZ)超材料的毫米波双功能平面内中空金属波导微带跃迁和带通滤波器的新设计。一个空心金属矩形波导(HMRW)在其基本TE10模式的截止频率附近工作,用于模拟ENZ超材料,允许波以有效的无限相速度穿过波导。作为波导过渡,ENZ波导直接将HMRW和微带在同一平面上互连,在33.06 GHz时插入损耗最小为0.7 dB,克服了HMRW和微带之间明显的阻抗失配和几何差异。作为带通滤波器,该设计具有近平坦的通带,最小插入损耗为0.7 dB,以32.96 GHz为中心的带宽为1.31 GHz,其q因子为25.17。这项工作为一种新型双功能波导转换和带通滤波器迈出了一步,该滤波器可用于毫米波多芯片模块和混合集成电路的各种功能组件。
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引用次数: 0
CFD Simulation of the Hydrodynamics in Three Phase Fluidized Bed Reactor: Effect of Particle Properties 三相流化床反应器流体力学的CFD模拟:颗粒性质的影响
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999951
Parinya Khongprom, Waritnan Wanchan, Kongpob Kamkham, S. Limtrakul
The effect of particle properties on the flow behavior in the gas-liquid-solid bubble column was investigated by means of CFD simulation. Multi-fluid model and the kinetic theory of granular flow were employed. The particle diameters dp = 3 mm, 4 mm and 5 mm and particle densities $rho_{mathrm{p}} = 2,250$ kg/m3, 2,450 kg/m3 and 2,750 kg/m3 were studied. The results showed that the particle size remarkably impacted on the hydrodynamic and the radial uniformity. For small particle, the flow behavior is very chaotic with less uniformity in the radial direction. The strong turbulent regime was obtained. The flow behavior becomes more uniform for large particle. The transition regime with low S.D. of flow behavior was observed. However, the particle density had less impact on the hydrodynamic and the radial uniformity distribution.
采用CFD模拟方法研究了颗粒特性对气液固气泡塔内流动特性的影响。采用多流体模型和颗粒流动动力学理论。研究了颗粒直径dp = 3mm、4mm和5mm,颗粒密度$rho_{ mathm {p}} = 2,250$ kg/m3、2,450 $ kg/m3和2,750 kg/m3。结果表明,颗粒尺寸对流体力学和径向均匀性有显著影响。对于小颗粒,流动行为非常混乱,径向均匀性较差。得到了强湍流状态。大颗粒的流动行为更加均匀。观察到低sd流动特性的过渡区。颗粒密度对流体力学和径向均匀性分布的影响较小。
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引用次数: 2
Sensor Development for Soil-Property Detection Using Near Infrared Spectroscopy 近红外光谱土壤特性检测传感器研制
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999879
Phongphol Lostapornpipit, Feaveya Kheawprae, A. Boonpoonga, Lakkhana Bannawat
A utilization of Near-Infrared Spectroscopy (NIRs) for prediction of soil properties is a cost and time effective method. Spectral data are often suitable for estimation of biochemical soil quality indicators. This paper introduces a sensor development for soil-property detection using near infrared spectroscopy to avoid dangerous heavy metals and guarantee agricultural product quality. Such as arsenic in contaminated soils transporting to human body via vegetables or other products. In order to create a predictive model, experiments are conducted with samples that added exact quantity of arsenic trioxide (AS2O3). Furthermore, various soils from agricultural sites are also collected to perform experiments. Partial Least Square Regression (PLSR) is used as a signal processing method in order to create predictive models for common dangerous element in soils, such as iron and arsenic.
利用近红外光谱(NIRs)进行土壤性质预测是一种经济、省时的方法。光谱数据通常适用于土壤生化质量指标的估计。本文介绍了一种近红外光谱土壤特性检测传感器的研制,以避免有害重金属的存在,保证农产品质量。例如污染土壤中的砷通过蔬菜或其他产品进入人体。为了建立预测模型,对添加了精确量的三氧化二砷(AS2O3)的样品进行了实验。此外,还收集了农业现场的各种土壤进行实验。将偏最小二乘回归(PLSR)作为一种信号处理方法,用于建立土壤中常见危险元素(如铁和砷)的预测模型。
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引用次数: 0
Combination of Active Braking and Torque Vectoring in Electronic Stability Control for Four-Wheel Independent Drive Electric Vehicle 四轮独立驱动电动汽车主动制动与扭矩矢量相结合的电子稳定控制
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999965
S. Sitthiracha, S. Koetniyom, G. Phanomchoeng
Torque vectoring (TV) is a widely used technique to achieve stability control for independent wheel drive electric vehicle due to its velocity maintaining performance. However, in case of critical and emergency situations, active braking (AB) performs better in improving handling improvement. To improve overall handling performance in the critical situation, combination of TV and AB is introduced in this paper. Yaw rate and vehicle sideslip rate are used as a control parameter in PID controller to determine motor torques and brake pressures. Brake force is applied at each wheel whenever motor brake torque is activated. With the contribution of AB, overall required motor torques for countering yaw moment are drastically reduced in four-wheel independent drive electric vehicle while similar stability performance can be achieved.
转矩矢量控制技术由于具有良好的速度保持性能而被广泛应用于独立轮驱动电动汽车的稳定性控制。但在关键和紧急情况下,主动制动(AB)在改善操控性方面表现更好。为了提高在危急情况下的整体处理性能,本文提出了电视与AB相结合的方法。在PID控制器中以横摆角速度和车辆侧滑率作为控制参数来确定电机转矩和制动压力。当电机制动扭矩被激活时,制动力应用于每个车轮。由于AB的贡献,四轮独立驱动电动汽车抵消偏航力矩所需的总体电机转矩大大降低,同时可以获得类似的稳定性能。
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引用次数: 2
Modeling a Hierarchical Abstraction Process on top of Co-Occurrence Graphs 基于共现图的分层抽象过程建模
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999949
Supaporn Simcharoen, Yanakorn Ruamsuk, A. Mingkhwan, H. Unger
A co-occurrence graph is incorporated from sets of documents that represent knowledge. However, determining number of groups or clusters of knowledge this may pertain to remains a challenge. This work will explore the hierarchical clustering algorithm for which a hierarchy is built from the cluster center (centroid) of each cluster that is read node by node. Each node finds an inter-cluster that will be assigned by referring to a distance from the node to the inter-cluster center which ensures that this node is a member of that inter-cluster. The inter-cluster center is an abstract identifier that represents all nodes of the respective cluster. When the next hierarchy level is built; the clustering will be applied again. All processes are repeated until the last remaining abstract identifier (root). The results of 10 datasets showed that the co-occurrence graph can be hierarchical clustering for which the hierarchical levels ended at level 4.
共现图是由表示知识的文档集合组合而成的。然而,确定这可能涉及的知识组或集群的数量仍然是一个挑战。这项工作将探索层次聚类算法,该算法从每个节点读取的每个集群的聚类中心(质心)构建层次结构。每个节点找到一个集群间的节点,该节点将通过引用节点到集群间中心的距离来分配,该距离确保该节点是该集群间的成员。集群间中心是一个抽象的标识符,表示各自集群的所有节点。当构建下一个层次结构级别时;将再次应用集群。所有的进程都是重复的,直到最后一个抽象标识符(根)。10个数据集的结果表明,共现图可以分层聚类,分层层次在第4层结束。
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引用次数: 0
The Effect of Optimal Vehicle Velocity Trajectory and Optimal Hybrid Energy Storage on Electric Vehicle Energy Consumption 最优车速轨迹和最优混合储能对电动汽车能耗的影响
Pub Date : 2019-12-01 DOI: 10.1109/RI2C48728.2019.8999922
Waiard Saikong, T. Kulworawanichpong
This article proposed a method to increase effectiveness of energy consumption and presented comparison of effects of energy and power consumption from algorithms to investigate optimal velocity trajectory under the condition of late arrival, algorithms to investigate optimal hybrid energy storage system, and cases that collaborated both algorithms. The testing was on the route New York City Cycle - NYCC and route SUT - Suranaree University of Technology Route. The real field measurement was used to find load profile for SUT route. Both were urban traffic routes. The researcher created a mathematic model and tested for optimal velocity trajectory and optimal hybrid energy storage system using particle swarm optimization: PSO methodology. The test revealed that the algorithm to investigate optimal velocity trajectory under the condition of delayed arrival together with the algorithm to investigate optimal hybrid energy storage system - HESS can reduce energy consumption and maximum peak power at most which was at 46.653% and 60.543% respectively on NYCC route and can reduce energy consumption at 21.435% and reduce maximum power at 23.973% on SUT route.
本文提出了一种提高能耗效率的方法,并从考察迟到点条件下最优速度轨迹的算法、考察最优混合储能系统的算法以及两种算法协同使用的情况,对能源和功耗的效果进行了比较。测试是在纽约城市自行车- NYCC路线和SUT - Suranaree科技大学路线上进行的。通过现场实测,确定了SUT线路的负荷分布。两条都是城市交通路线。研究人员建立了数学模型,并利用粒子群优化方法对最优速度轨迹和最优混合储能系统进行了测试。试验表明,研究延迟到达条件下最优速度轨迹的算法与研究最优混合储能系统HESS的算法在NYCC路线上的能耗和最大峰值功率降幅分别为46.653%和60.543%,在SUT路线上的能耗和最大功率降幅分别为21.435%和23.973%。
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引用次数: 0
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2019 Research, Invention, and Innovation Congress (RI2C)
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