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2019 6th International Conference on Information Technology, Computer and Electrical Engineering (ICITACEE)最新文献

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Performance Improvement of Scalar Feedback Control for Induction Motors by Using Third Harmony Injection SPWM 利用第三次谐波注入SPWM改进异步电动机的标量反馈控制性能
A. N. Luqman, Miftah Adiguna, Abdul Fandi, M. Facta, T. Andromeda, Hermawan, I. Setiawan
Induction motor is widely used in some applications. As time goes by, control of induction motor is expected to has fast response to load changes and transient response. Speed precision is also required in some applications. Scalar control is known because of simplicity. Limitations of conventional scalar control are slow response and uncontrolled speed. In other hands, vector control provides a great response of induction motor, but the implementation is relatively difficult. Different modulation technique can change the speed response of induction motor. Injecting third harmony injection to induction motor does make a significant change of induction motor's speed response. This paper intends to analyse induction motor's response by injecting third harmony injection on scalar control. Injecting third harmony signal to SPWM will improve motor's transient response and feedback response under loaded condition. The software is embedded using DSP microcontroller using fixpoint arithmetic to achieve faster computation time and to reduce memory usage.
感应电动机在某些应用中得到了广泛的应用。随着时间的推移,人们期望异步电动机的控制对负载的变化具有快速响应和瞬态响应。在某些应用中也需要速度精度。标量控制因为简单而为人所知。传统标量控制的局限性是响应慢、速度不可控。另一方面,矢量控制为感应电机提供了很大的响应,但实现起来相对困难。不同的调制技术可以改变感应电动机的速度响应。对感应电机注入第三次谐波注入后,感应电机的速度响应发生了明显的变化。本文拟通过对标量控制注入第三次谐波注入来分析感应电动机的响应。在SPWM中注入三次谐波信号可以改善电机的瞬态响应和负载状态下的反馈响应。软件采用DSP微控制器内嵌,采用定点算法,提高了计算速度,减少了内存占用。
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引用次数: 0
Bandwidth Enhancement using Stacked Patch MIMO Antenna with Low Mutual Coupling for 3.5 GHz 3.5 GHz低互耦叠加贴片MIMO天线的带宽增强
S. Pramono, M. H. Ibrahim, M. B. Yunindanova
In this paper, this proposed stacked parasitic patch is presented for 3.5 GHz MIMO antenna mobile application. The parasitic patch is placed on top of the radiator patch. The MIMO antenna is composed of four rectangular antenna elements on a compact size of FR 4 with a $mathbf{156 x 40} mathbf{mm}^{2}$ and total thickness of the stacked MIMO antenna is 3.84 mm. The presence of parasitic patch contributes to improve the performance of MIMO antenna with low mutual coupling including impedance bandwidth, VSWR and S-parameter. There is a 42.57% improvement of impedance bandwidth through 3.3949 GHz to 3.7214 GHz (326.5MHz). VSWR values less than 2 along impedance bandwidth spectrum and the lowest VSWR is 1.11 at 3.5 GHz. In addition, this proposed stacked MIMO antenna also has good ECC (less than 0.02) and diversity gain (more than 9.98) at an operating frequency of 3.5 GHz.
本文提出了一种适用于3.5 GHz MIMO天线移动应用的叠加寄生贴片。寄生贴片被放置在散热器贴片的顶部。MIMO天线由四个矩形天线单元组成,尺寸为fr4,尺寸为$mathbf{156 x 40} mathbf{mm}^{2}$,堆叠MIMO天线的总厚度为3.84 mm。寄生贴片的存在有助于提高低互耦MIMO天线的阻抗带宽、驻波比和s参数等性能。从3.3949 GHz到3.7214 GHz (326.5MHz),阻抗带宽提高了42.57%。在阻抗带宽谱上,VSWR小于2,在3.5 GHz时,VSWR最低为1.11。此外,该叠置MIMO天线在3.5 GHz工作频率下也具有良好的ECC(小于0.02)和分集增益(大于9.98)。
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引用次数: 1
Design of fabric-based soft robotic glove for hand function assistance 基于织物的机器人手功能辅助软手套设计
R. Ismail, M. Ariyanto, Taufik Hidayat, J. Setiawan
This research presents design and development of prototype fabric-based wearable soft exoskeleton. The soft glove employs motor-tendon for assisting the flexion and extension motion of the user’s hand. Two linear actuators are used as the motor-tendon actuator system. On-off control is designed for controlling the displacement of a linear actuator connected by nylon strings to the soft glove. Step input is given to test the performance of the proposed on-off control. Based on the experimental result, the on-off control produced very small steady-state error. The resulted soft glove is attached on human healthy hand for assisting the finger flexion and extension to grasp designated objects. Based on the test result, the proposed soft glove can assist the user/wearer in grasping three different objects.
本研究提出了基于织物的可穿戴软外骨骼原型的设计与开发。软手套采用运动肌腱辅助使用者手部的屈伸运动。采用两个线性作动器作为电机-肌腱作动系统。开关控制设计用于控制由尼龙串连接到软手套的线性执行器的位移。给出了阶跃输入来测试所提出的开关控制的性能。实验结果表明,开关控制产生的稳态误差很小。所制成的软手套附着在人体健康的手上,帮助手指屈伸握住指定的物体。根据测试结果,所提出的软手套可以帮助使用者/佩戴者抓取三种不同的物体。
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引用次数: 5
Design of Remote Terminal Unit (RTU) Panel Supply Monitoring Based on IOT Case Study at PLN 基于PLN物联网的远程终端单元(RTU)面板供电监控设计
Fikri Salahudin, Sudjadi, B. Setiyono
PLN(electricity supply company in Indonesia) uses the Supervisory Control and Data Acquisition (SCADA) system which consists of RTU(Remote Terminal Unit) panels for remote control. Many RTU panels failed to connect to PLN SCADA's system. One reason is the decrease in the supply voltage of the RTU panel. PLN carries out maintenance to handle that. To increase the productivity of maintaining the problem by PLN, We made a prototype monitor RTU panel supply in mobile and real-time based on internet of thing(IoT). The device performs data acquisition of Alternating Current(AC) voltage supply, Direct Current(DC) voltage supply in adapter and battery, test the condition of the RTU panel supply battery with the android application as GUI (Graphic User Interface). The android application can also show RTU panel locations and routes. With this prototype, it is expected to increase efficiency, productivity and shorter maintenance time on RTU panel maintenance so that SCADA is always ready to be used in the distribution network at all times.
PLN(印度尼西亚的电力供应公司)使用监控和数据采集(SCADA)系统,该系统由RTU(远程终端单元)面板组成,用于远程控制。许多RTU面板无法连接到PLN SCADA系统。原因之一是RTU面板的供电电压降低。PLN进行维护来处理这个问题。为了提高PLN维护问题的效率,我们制作了一个基于物联网(IoT)的移动实时监控RTU面板供电样机。该设备对适配器和电池中的交流(AC)电压、直流(DC)电压进行数据采集,并以android应用程序为GUI(图形用户界面)测试RTU面板供电电池的状态。android应用程序还可以显示RTU面板的位置和路线。有了这个原型,它有望提高效率,生产力和缩短RTU面板维护的维护时间,以便SCADA随时准备在配电网中使用。
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引用次数: 2
Development Conceptual Model Smartphone Adoption for use Mobile Banking 开发概念模型,采用智能手机使用手机银行
Erick Fernando, Surjandy, Meyliana, D. F. Murad
The purpose of this article is to provide a conceptual model to study the factors that influence customer behavior in using or adopting mobile banking services with smartphones. In its development, many banking companies or those outside have taken the initiative to make mobile banking services more useful for all customers or their use. Therefore, it is necessary to understand what factors influence the customer's intention to adopt mobile banking with a smartphone. For this reason, development is needed in making conceptual models. This development of conducting a literature review is very important to expand the theory found scientifically. It is evaluated from instruments developed by testing validity and reliability using smart pls 2.0 and using the snowball sampling technique for sampling respondents. Distribution of instruments is done with Google Form. Data collected 258 respondents, and valid respondent data obtained 240 respondents to use. The results of this study are conceptual models that have seven variables: security, confidentiality, Perceived trust, Perceived of use smartphones, mobile banking services, the use of mobile banking and the development of instruments producing 39 instruments. The reliability test with Cronbach's alpha value above 0.5 and AVE value above 0.6. Validity test with a cross-loading value above 0.6, which value stated that the instrument was eligible to collect data from a larger survey in this study.
本文的目的是提供一个概念模型来研究影响客户使用或采用智能手机移动银行服务行为的因素。在其发展过程中,许多银行公司或外部机构已经采取主动,使移动银行服务对所有客户或他们的使用更有用。因此,有必要了解哪些因素会影响客户使用智能手机进行移动银行的意愿。因此,在制作概念模型时需要发展。进行文献综述的这种发展对于科学地扩展理论是非常重要的。它是通过使用智能pls 2.0测试效度和可靠性开发的工具进行评估的,并使用雪球抽样技术对抽样受访者进行抽样。仪器的分发是用Google Form完成的。数据收集了258名受访者,有效受访者数据获得240名受访者使用。本研究的结果是有七个变量的概念模型:安全性,保密性,感知信任,感知使用智能手机,移动银行服务,使用移动银行和工具的开发产生39种工具。信度检验Cronbach’s alpha值大于0.5,AVE值大于0.6。交叉载荷值大于0.6的效度检验,该值表明该仪器有资格在本研究中收集更大的调查数据。
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引用次数: 0
Multi-hop Uplink for Low Power Wide Area Networks Using LoRa Technology 基于LoRa技术的低功率广域网多跳上行链路
Misbahuddin, M. S. Iqbal, G. W. Wiriasto
Low Power Wide Area Networks (LPWANs) is a promising wireless communication technology that supports delivery packets in the local network of the Internet of Things (IoT). This technology aims to reduce power transmission, widen coverage area, reduce a cost, and increase scalability. The LPWANs is characterized by a star topology network that allows nodes can transmit directly to the gateway. However, this topology can cause nodes that located far from the gateway consuming more amounts of energy so that their battery will be rapidly dropped and die earlier. This work aims to evaluate the performance network in multi-hop uplink of LPWANs communication for LoRa in terms of energy saving. The network was constructed in a star topology with a gateway as its Center Point. Also, it has five rings and several branches. The nodes were deployed in the rings. Each node has several children. Results show the multi-hop model can decline significantly the uplink communication in terms of energy saving. This model can be an alternative uplink communication of LPWANs to prolong the network lifetime of the LPWANs.
低功耗广域网(lpwan)是一种有发展前景的无线通信技术,它支持在物联网(IoT)的本地网络中传输数据包。该技术旨在减少电力传输,扩大覆盖范围,降低成本,提高可扩展性。lpwan的特点是采用星型拓扑网络,允许节点直接向网关发送数据。然而,这种拓扑结构可能导致远离网关的节点消耗更多的能量,因此它们的电池将迅速下降并提前死亡。本工作旨在从节能的角度评估LoRa的lpwan通信多跳上行网络的性能。该网络以星形拓扑结构构建,以网关为中心点。此外,它有五个环和几个分支。节点按环形布置。每个节点有几个子节点。结果表明,多跳模型可以显著降低上行通信的能耗。该模型可以作为lpwan的备选上行通信,以延长lpwan的网络寿命。
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引用次数: 5
Early Warning System of Landslide Disaster using Generalized Neural Network Algorithm 基于广义神经网络的滑坡灾害预警系统
A. Sofwan, Sumardi, Thariq Hizrian Azka
Landslides are frequently happened Indonesia, as many as 274 districts / cities are prone to landslides. There are many parameters that affect the landslide occurrence such as rainfall, land slope, soil moisture, and vibration. It is needed to provide a system that not only able to process data parameters to provide early warning of landslide disaster, but also increase the readiness of the population to minimize losses caused by this disaster. Generalized Regression Neural Network method is used to identify the effect of each parameter on the occurrence of landslide disaster. Tests conducted on field conditions and simulations on safe, alert, and danger condition to know the calculation result of artificial neural network. The simulation results are compared with the artificial neural network feed forward back propagation and manual calculations to demonstrate the effectiveness of the proposed method. The validation test on field condition using simulation shows average error of Generalized Regression method and Feed Forward Backpropagation method are 0.00115 and 0.08702, respectively. Furthermore, the Mean Square Error performance of the former method is better than that of the latter with values of 2.9157e-06 and 0.0112, severally.
印度尼西亚经常发生山体滑坡,多达274个地区/城市容易发生山体滑坡。影响滑坡发生的参数有很多,如降雨、土地坡度、土壤湿度、振动等。需要提供一个系统,它不仅能够处理数据参数,提供滑坡灾害的早期预警,而且还能增加人们的准备,以尽量减少灾害造成的损失。采用广义回归神经网络方法识别各参数对滑坡灾害发生的影响。在现场条件下进行试验,在安全、警戒、危险条件下进行模拟,了解人工神经网络的计算结果。仿真结果与人工神经网络前馈反馈传播和人工计算进行了比较,验证了所提方法的有效性。现场仿真验证表明,广义回归法和前馈反向传播法的平均误差分别为0.00115和0.08702。此外,前一种方法的均方误差性能优于后一种方法,分别为2.9157e-06和0.0112。
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引用次数: 1
Implementation of Neural Network Classification for Diabetes Mellitus Prediction System through Iridology Image 基于虹膜影像的糖尿病预测系统的神经网络分类实现
Rievanda Putri, A. H. Saputro
One alternative and a non-invasive method named iridology, has been developed to find more effective way of detecting diabetes mellitus. Iridology is the method of mapping the human organs, and it has corresponded in iris' zone. It can be used to detect damaged tissues, particularly in the pancreas where it holds the primary role of producing insulin. This study focuses on developing a non-invasive diabetes mellitus prediction system through an iris image using an image processing algorithm and neural network model. The processing starts with image enhancement using FFT filter and grayscaling, iris localization using Circular Hough Transform (CHT), and normalization using rubber sheet normalization. Segmentation on pancreas in iris image then resulted as followed, one ROI of right-eye image and two ROIs of left-eye image. The image database is collected with maximum of three images taken from 15 healthy subjects and 11 diabetes subjects, resulted in 201 data images. Feature extraction method that has been used is the Gabor filter, using the texture feature of the segmented iris image. The evaluation method we use for the system is the confusion matrix to obtain its accuracy and other parameters. Classification model of Feed-Forward Neural Network (FNN) is implemented to classify between diabetes and healthy subjects with the best results of accuracy number 95.74% and 92.57% for training and testing data respectively. The result shows that this system can be proposed as a complementary tool for therapeutic methods for diabetes prediction.
一种替代的非侵入性方法被称为虹膜学,它已经发展成为一种更有效的检测糖尿病的方法。虹膜学是绘制人体器官的一种方法,它与虹膜区相对应。它可以用来检测受损组织,特别是在胰腺中,它起着产生胰岛素的主要作用。本研究的重点是利用图像处理算法和神经网络模型开发一种基于虹膜图像的无创糖尿病预测系统。处理开始于使用FFT滤波器和灰度化的图像增强,使用圆形霍夫变换(CHT)的虹膜定位,以及使用橡胶片归一化的归一化。对虹膜图像中的胰腺进行分割,得到右眼图像的一个ROI和左眼图像的两个ROI。图像数据库采集了15名健康受试者和11名糖尿病受试者最多3张图像,共201张数据图像。所采用的特征提取方法是Gabor滤波器,利用分割后虹膜图像的纹理特征。我们对系统使用的评价方法是混淆矩阵,以获得其精度和其他参数。采用前馈神经网络(FNN)分类模型对糖尿病受试者和健康受试者进行分类,训练数据准确率为95.74%,测试数据准确率为92.57%。结果表明,该系统可作为糖尿病预测治疗方法的补充工具。
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引用次数: 3
Design of Data Acquisition System for Position and Attitude Quadcopter 定位姿态四轴飞行器数据采集系统设计
A. Triwiyatno, Sumardi, H. Afrisal, Dhamastya Adhi Putra, Taufik Rahmadani
Quadcopter requires monitoring to determine the position and attitude of the object when flying. Attitude consists of roll, pitch, and yaw angles. In quadcopter monitoring is difficult when the object is flying away and outside the operator's viewing range. Monitoring requires a monitoring system to monitor objects further. One way that can be used to determine the position and motion of a quadcopter is by combining GPS technology and Inertial Sensor. This study discusses data acquisition to monitor the position, attitude, and value of reading the sulfur gas sensor in the quadcopter by combining GPS and Inertial Sensor. The communication module used is 433 MHz radio frequency with STM32F103 and the main microcontroller using STM32F4DISCOVERY. Data about accepted objects is then displayed through Visual C # in real time. Testing of latitude and longitude is done by tracking the path of the object, while testing roll, pitch, and yaw angles is done by placing the object in accordance with the reference angle.
四轴飞行器在飞行时需要监控以确定物体的位置和姿态。姿态包括滚转、俯仰角和偏航角。在四轴飞行器中,当目标飞离并超出操作员的观察范围时,监控是困难的。监控需要一个监控系统来进一步监控对象。一种可以用来确定四轴飞行器的位置和运动的方法是结合GPS技术和惯性传感器。本文讨论了利用GPS和惯性传感器相结合的方法,对四轴飞行器中硫气体传感器的位置、姿态和读数进行数据采集监测。通信模块采用的是433mhz射频,采用STM32F103,主单片机采用STM32F4DISCOVERY。然后通过Visual c#实时显示被接受对象的数据。纬度和经度的测试是通过跟踪物体的路径来完成的,而横滚、俯仰角和偏航角的测试是通过将物体放置在参考角度来完成的。
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引用次数: 0
Analysis Social Media Application Message Trust Factor a case study University Student in Indonesia 社交媒体应用信息信任因素分析——以印尼大学生为例
Surjandy, Wanda Wandoko, Meyliana, Erick Fernando
Social media application is an essential tool contemporary to disseminate information or messages such as advertising. The use is of social media inseparable from the habits of Indonesians who often use social media application every day. However, a lot of fake news or hoax has been found spread through social media application contemporary. University Students are the most active users who have internet access (89.7%) in Indonesia or around 127 million people. Therefore, this causal research, or also known as explanatory research, will analyst the trust factor of Social Media application message, or the research question is, do university student trust to message from social media? SPSS applications and crosstabulation function used to process the data and show the correlation between factors. Three hundred eighty-eight active university students from many universities and cities in Indonesia as respondents. Twenty-eight hypotheses were constructed and found seven associations between several factors with trust to message or information from social media.
社交媒体应用是当代传播信息或信息的重要工具,如广告。社交媒体的使用与印尼人每天经常使用社交媒体的习惯密不可分。然而,许多假新闻或骗局被发现通过社交媒体应用传播。在印度尼西亚,大学生是最活跃的互联网用户(89.7%),约有1.27亿人。因此,这个因果研究,或者也称为解释性研究,将分析社交媒体应用信息的信任因素,或者研究的问题是,大学生是否信任来自社交媒体的信息?应用SPSS软件和交叉调节函数对数据进行处理,显示各因素之间的相关性。388名来自印尼多所大学和城市的在校大学生作为调查对象。他们构建了28个假设,并发现了对社交媒体上的信息或信息的信任的几个因素之间的7个关联。
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引用次数: 0
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2019 6th International Conference on Information Technology, Computer and Electrical Engineering (ICITACEE)
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