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Interference Analysis Between 5G System and Fixed Satellite Service in the 28 GHz Band 5G系统与固定卫星业务在28ghz频段的干扰分析
Pub Date : 2023-10-23 DOI: 10.26418/elkha.v15i2.51040
Rafli Ghifari, Lydia Sari, R. Deiny Mardian W, Syah Alam, Indra Surjati
One of the most favorable frequency bands for 5G technology is the 27.5 - 28.5 GHz band which has been used by Fixed Satellite System (FSS) service in the uplink direction. This potentially causes interference between the two systems. This study aims to analyze the interference that occurs between satellite earth stations and 5G access points (AP), and between 5G AP and satellite sky stations. The analysis is carried out based on simulations using the Spectrum Engineering Advanced Monte Carlo Analysis Tool (SEAMCAT) software, with two scenarios. The first scenario is to analyze interference between the 5G AP and the FSS sky station. With the C/I interference criterion of 40.2 dB, the simulation results show that the 5G AP will not interfere with the FSS sky station. The second scenario is the interference simulation between FSS earth station and 5G AP. The simulation is carried out by varying the distance between the earth station and the 5G AP, the height of the earth station, and the height of the 5G AP. Based on the simulations, it is shown that the FSS earth station can interfere with 5G AP with a probability of up to 60%, so it is necessary to adjust the distance between systems and the height of the antenna to minimize the interference. The shortest distance needed to minimize interference is 36 km with an earth station height of 5 meters.
5G技术最有利的频段之一是27.5 - 28.5 GHz频段,该频段已被固定卫星系统(FSS)业务用于上行方向。这可能会导致两个系统之间的干扰。本研究旨在分析卫星地面站与5G接入点(AP)之间以及5G AP与卫星天台站之间发生的干扰。利用频谱工程高级蒙特卡罗分析工具(seamat)软件进行仿真,分析了两种场景。第一个场景是分析5G AP和FSS天台之间的干扰。在C/I干扰准则为40.2 dB的情况下,仿真结果表明5G AP不会对FSS天台产生干扰。第二个场景之间的干扰仿真FSS地球站和5 g美联社。仿真是由不同的地球站之间的距离和美联社5克、地球站的高度,和5 g的高度美联社。基于模拟,结果表明,金融监督院地球站会干扰5 g美联社的概率高达60%,因此有必要调整系统之间的距离和天线的高度的干扰降到最低。最小干扰所需的最短距离为36公里,地面站高度为5米。
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引用次数: 0
Design of Bluetooth Wireless Transporter Mecanum Wheeled Robot with Android Smartphone Controller for Moving Item 基于Android智能手机控制器的蓝牙无线传送机甲轮式移动机器人设计
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.63769
Yandhika Surya Akbar Gumilang, K. Krisdianto, Haitsam Haitsam, Moch. Aditya Rizky Fahreza, Aziz Alfayid
Technology development are going so fast. One of technology development on purposed reasearch is moving item technology. Moving item can be dangerous works for human. There are some dangerous case of moving item, heavy weight items, hazardous chemical compounds, etc. Purposed research is to minimize risk from previous problem. It can reduce work load energy and minimize an accident in terms of moving items for operator, which are often encountered in the industry sector. Purposed research made bluetooth wireless transporter mecanum wheeled robot with android smartphone controller for moving item. Robot made in prototype scale. Robot size is 28x13x15 cm(s). Robot made based on arduino uno and L293D driver motor shield with android smartphone controller. Using android controller was made user easier to use. This robot design equipped with 4 mecanum wheel (4 DC motors), two 1850 battery, Arduino Uno, L293D driver motor, HC-06 bluetooth module, LCD and two M90s Servos for gripper. Gripper has two motions, shift and lift motions. After several test of purposed transporter robot, it can conclude that purposed transporter robot can controlled wireless with bluetooth from 0 to 20 meters. Purposed robot gripper has two motion Gripper test result, purposed transporter robot can shift item up to 350 grams weight load and lift an item up to 200 grams. Robot can operate up to 128 minutes with full capacity batteries . From several test, main purposed of this robot can provided. It is to moving an item to another place. Purposed robot can implements in industry sector with adjustment specification, but if weight load and dimensions match with this research, then purposed robot can be used properly.
科技发展如此之快。有目的研究的技术开发之一是移动项目技术。搬运物品对人来说是危险的工作。有搬运物品、重物、危险化学品等危险情况。有目的的研究是为了减少先前问题带来的风险。它可以减少工作量的能量,并最大限度地减少操作员在移动物品方面的事故,这在工业部门经常遇到。目的研制一种具有android智能手机控制器的蓝牙无线传送机械轮式机器人,用于移动物品。机器人的原型比例。机器人尺寸为28x13x15厘米。机器人基于arduino uno和L293D驱动电机屏蔽与android智能手机控制器。使用android控制器使用户更容易使用。该机器人设计配备4个机械轮(4个直流电机),2块1850电池,Arduino Uno, L293D驱动电机,HC-06蓝牙模块,LCD和2个M90s伺服器作为夹持器。夹持器有两种运动,移动和抬起运动。经过对专用运输机器人的多次测试,可以得出专用运输机器人可以在0 ~ 20米范围内通过蓝牙进行无线控制的结论。目的机器人夹持器有两种运动夹持器测试结果,目的运输机器人可以移动350克重的物品载荷和举起200克重的物品。在充满电的情况下,机器人可以工作128分钟。从几次试验中可以看出该机器人的主要用途。它是将一个项目移动到另一个地方。专用机器人可以通过调整规格在工业领域实现,但如果重量负载和尺寸与本研究相匹配,则专用机器人可以正常使用。
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引用次数: 0
The Industrial IoT Control Design of Three Phase Induction Motor using Conventional V/F Method 基于传统V/F方法的三相感应电机工业物联网控制设计
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.63817
A. Aditya, R. M. Utomo, Nur Rani Alham, Hilmansyah Hilmansyah
Nowadays, the Internet of Things (IoT) is inseparable from the industrial revolution 4.0 and society 5.0. IoT allows all aspects to be connected at the same time. In industrial processes, the IoT controls the actuator and monitors the behavior system. Industrial IoT (IIoT) connected the Human Machine Interface (HMI) Haiwell C7S with the actuator (Schneider Altivar 12) and the controller (OMRON CP1E-NA20DRA). The communication between the variable speed drive and Haiwell C7S using Modbus protocol is connected with RS485. Schneider Altivar 12 is a variable-speed drive that controls the Induction Motor (IM) rotor speed using the conventional V/F method. The scalar control of IM controls supply frequency and voltage simultaneously. The success parameter of the proposed systems is a rotor speed response and voltage in various supply frequencies. The results show that the 5 Hz supply frequency makes the absolute error of rotor speed response 11.43% for tachometer measurement, 0.67% from VSD data, and 12.67% for rotary encoder measurement. This absolute error will decrease significantly when the supply frequency exceeds 20 Hz, or the rotor speed response exceeds 1200 rpm. The changes in the supply frequency change the voltage's magnitude. The voltage will increase proportionally, along with the increase in supply frequency.
如今,物联网(IoT)与工业革命4.0和社会5.0密不可分。物联网允许所有方面同时连接。在工业过程中,物联网控制执行器并监控行为系统。工业物联网(IIoT)将人机界面(HMI) Haiwell C7S与执行器(施耐德Altivar 12)和控制器(欧姆龙CP1E-NA20DRA)连接起来。变频器与海威C7S之间的通信采用Modbus协议,通过RS485连接。施耐德Altivar 12是一种变速驱动器,使用传统的V/F方法控制感应电机(IM)转子速度。IM的标量控制同时控制电源频率和电压。所提出的系统的成功参数是转子在不同电源频率下的转速响应和电压。结果表明,在5 Hz供电频率下,转速表测量的转速响应绝对误差为11.43%,VSD测量的转速响应绝对误差为0.67%,旋转编码器测量的转速响应绝对误差为12.67%。当供电频率超过20hz,或转子转速响应超过1200rpm时,此绝对误差将显著减小。电源频率的变化改变了电压的大小。随着电源频率的增加,电压将成比例地增加。
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引用次数: 0
Designing a Monitoring and Controlling System on IOT-Based Sockets 基于物联网插座的监控系统设计
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.62083
Yugerita Firmance, S. Amalia, Kartiria Kartiria
The government's program to promote energy conservation efforts by reducing the occurrence of vampire power in the surrounding environment, particularly in the household sector. For this reason, modifications are made to the socket so that it can be controlled and monitored remotely through an application on a smartphone. The hardware design uses the NodeMCU ESP8266 V3 as a microcontroller. Combined with the PZEM-004T sensor module to read current, voltage, and power values. Relay module to secure the circuit in case of higher loads. So that in the system, the socket can be monitored 3 sockets simultaneously. While the software design uses the MIT app inventor as the user interface, and the Thingspeak platform as a server. The data is saved in.csv format, which can be opened in Microsoft Excel.  The data stored is in the form of the name of the electronic equipment, the time of use, as well as the voltage, current, and power of the device. So that users can manage the use of electrical appliances at home and reduce the occurrence of electric vampires. The test results showed an average voltage error rate of 0.24% with a voltage range of 226 V–230 V, an average current error rate of 22.18%, and an error rate on power of 15.39%. This is caused by the measured load being too small, resulting in higher errors in current and power. 
政府计划通过减少周边环境中,特别是家庭部门中吸血鬼电力的发生来促进节能工作。出于这个原因,对套接字进行了修改,以便可以通过智能手机上的应用程序远程控制和监视它。硬件设计采用NodeMCU ESP8266 V3作为微控制器。结合pzm - 004t传感器模块读取电流,电压和功率值。继电器模块,以确保电路在更高的负载情况下。从而在系统中可以同时对3个socket进行监控。而软件设计则使用麻省理工学院应用程序发明人作为用户界面,Thingspeak平台作为服务器。数据保存为。csv格式,可在Microsoft Excel中打开。存储的数据以电子设备的名称、使用时间以及设备的电压、电流和功率的形式存在。这样用户就可以对家中电器的使用进行管理,减少电吸血鬼的发生。测试结果表明,在226 V ~ 230 V电压范围内,平均电压错误率为0.24%,平均电流错误率为22.18%,功率错误率为15.39%。这是由于测量负载太小,导致电流和功率误差较大。
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引用次数: 1
D-Tags Design by Combining Bluetooth Router, IoT, and Mobile Phone to Track Personal Items 结合蓝牙路由器、物联网和手机的d标签设计,追踪个人物品
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.63520
A. Farouq, R. Fathurrahman
Losing personal items such as a wallet or room keys is disturbing. Problems arise when clues to find the item are lacking or even non-existent. Of one hundred-two people who filled out the questionnaire about how often losing their belongings, 76% had experienced it. Because of that, it must be hard to remember where the last they put the stuff. Therefore people need tools that can help them easily find their item with a transmitter and connect to a mobile phone. Previous research showed that the transmitter with a frequency system had a detection distance of only 5 meters. From this weakness, the authors propose the development of a tracking items device that combines an Internet of Things-based Bluetooth transmitter and receiver system approach called D-Tags by combining Bluetooth routers, IoT, and mobile phones. The system is designed for both indoor and outdoor areas. Bluetooth testing allows the device to detect items up to 7.43 meters without wall obstacles. The system provided location information such as Living Room or Bedroom and the coordinates when outside the room. Regarding time, a single detection item is faster in the range of 15.13 seconds to 15.60 seconds than searching for two things simultaneously. From the tracking radius of the outdoor area, the device can track items up to 31.8 meters from the last item's position. All information tracking history can be seen on the web application. The experiment results prove that D-Tags can be used to track items by indicating their location and with a relatively short search duration.
丢失钱包或房间钥匙等个人物品会令人不安。当寻找道具的线索缺失或根本不存在时,问题就出现了。在填写了关于丢失物品频率的调查问卷的102人中,76%的人有过这种经历。正因为如此,一定很难记住他们最后把东西放在哪里了。因此,人们需要工具,可以帮助他们轻松地找到他们的物品与发射器和连接到移动电话。先前的研究表明,带有频率系统的发射机的探测距离仅为5米。针对这一弱点,作者提出了一种结合蓝牙路由器、物联网和移动电话,将基于物联网的蓝牙发射器和接收器系统方法称为D-Tags的跟踪物品设备的开发。该系统设计用于室内和室外区域。蓝牙测试允许该设备检测高达7.43米的物体,没有墙壁障碍。该系统提供了诸如客厅或卧室等位置信息以及房间外的坐标。从时间上看,在15.13秒到15.60秒的范围内,单个检测项目比同时搜索两个项目要快。从室外区域的跟踪半径来看,该设备可以跟踪距离最后一个物品位置31.8米的物品。所有的信息跟踪历史可以在web应用程序上看到。实验结果证明,d标签可以通过指示物品的位置和相对较短的搜索时间来跟踪物品。
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引用次数: 0
Assessment of Solar Energy Resource for PV Plant Development Using a Low-cost PV Monitoring System 利用低成本光伏监测系统对光伏电站开发太阳能资源进行评估
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.63847
A. Sunarso, Devi Andriani, Dovian Iswanda, Nurhaidah Nurhaidah, Tri Pratomo, Halasan Sihombing, Y. Yunita, Wendhi Yuniarto, R. Rusman
In this work, we propose the use of a low-cost PV monitoring system for providing accurate and comprehensive data required in the development of efficient and reliable solar PV plants. The system is developed based on an open-source Arduino platform with the capability to monitor solar irradiance, and electric outputs and temperature of multiple solar panels, which should enable the accurate assessment of solar energy resource, as well as electrical energy produced by PV plant under real operating conditions. To demonstrate its applicability, the system has been installed at the campus of Politeknik Negeri Pontianak in Pontianak City, and the data collected by the system is used to assess solar energy resource at the location. Data collected by the system from August 2020 to September 2021 shows that the values of solar irradiation are in the range of 2.9–4.1 kWh/m2 per day, and electric energy produced by commercial solar panels are in the range of 0.30–0.46 kWh/m2 per day, correspond to the monthly averaged efficiencies of 8–13%. The values of solar irradiation are 15–40 % lower than those obtained from the space-averaged satellite data which are in the range of 4.1–5.8 kWh/m2 per day. This shows the significant effects of local conditions, and confirms the advantage of assessment using the low-cost monitoring system that directly accounts for the effects of local conditions without the need of simulation using complex model and sophisticated software that required in the assessment using satellite-derived data.
在这项工作中,我们建议使用一种低成本的光伏监测系统,为开发高效可靠的太阳能光伏电站提供准确、全面的数据。该系统基于开源Arduino平台开发,能够监测太阳辐照度、多个太阳能电池板的输出电量和温度,能够准确评估太阳能资源,以及光伏电站在实际运行条件下产生的电能。为了证明其适用性,该系统已安装在Pontianak市的Politeknik Negeri Pontianak校园,并使用该系统收集的数据来评估该地点的太阳能资源。系统从2020年8月至2021年9月收集的数据显示,太阳辐照值为2.9-4.1 kWh/m2 /天,商用太阳能电池板产生的电能为0.30-0.46 kWh/m2 /天,对应的月平均效率为8-13%。太阳辐照值比空间平均卫星资料得到的4.1 ~ 5.8 kWh/m2 /天的辐照值低15 ~ 40%。这显示了当地条件的重大影响,并证实了使用低成本监测系统进行评估的优势,该系统直接说明了当地条件的影响,而不需要使用复杂的模型和复杂的软件进行模拟,这是使用卫星数据进行评估所必需的。
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引用次数: 1
Analysis of ITO/a-Si:H(p)/a-Si:H(i)/c-Si(n)/Al HIT (Heterostructure with Intrinsic Thin Layer) solar cell performances. ITO/a-Si:H(p)/a-Si:H(i)/c-Si(n)/Al HIT(异质结构与本质薄层)太阳能电池性能分析
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.61351
Igor Levi Satriani, R. Munir, A. I. Natalisanto, D. Hamdani
Numerical simulation on HIT (Heterostructure with Intrinsic Thin Layer) solar cell using hetero-structure ITO/(p+)a-Si:H/(i)a-Si:H/(n)c-Si/Al solar cell has been done using AFORS-HET (Automate For Simulation of Heterostructure) software. The purpose of this study is to provide validation as well optimization model of solar cell enhanced performances. Data analysis shows a significant increase on solar power generation. An intrinsic thin layer given between the hetero-interface to reduce defect properties on solar cell structure. The optimization using an optimal value of acceptor-donor doping, dangling-bond defects ( ), thin conductive oxide work function ( ), and other input shows a reducing recombination-rates, as a validation Figure of Merits (FOMs) data reach a maximum efficiency value at 23,67% (  = 634,2 mV;  = 51,2 mA/cm2; = 72,91%, this result achieved on peak data such  = 5,2 eV, Na (doping) = 5.0 x 1019 cm-3,  = 1.0 x 1018 cm-3,  (interface defect) = 1.0 x 1010 cm-3. The results obtained from this simulation produce a number of optimum parameters that can be followed up experimentally to obtain better solar cell performances.
利用AFORS-HET (automated For simulation of Heterostructure)软件对ITO/(p+)a-Si:H/(i)a-Si:H/(n)c-Si/Al异质结构太阳能电池进行了HIT(本质薄层异质结构)的数值模拟。本研究的目的是提供太阳能电池增强性能的验证和优化模型。数据分析显示,太阳能发电显著增加。在异质界面之间有一层本征薄层,以减少太阳能电池结构上的缺陷。采用受体-供体掺杂、悬垂键缺陷()、薄导电氧化物功函数()和其他输入的最优值进行优化,结果表明,重组率降低,验证FOMs数据的效率最大值为23.67% (= 634,2 mV);= 51,2 mA/cm2;= 72,91%,该结果在峰值数据= 5,2 eV, Na(掺杂)= 5.0 × 1019 cm-3, = 1.0 × 1018 cm-3,(界面缺陷)= 1.0 × 1010 cm-3上得到。模拟得到的结果产生了一些最优参数,这些参数可以在实验中跟进,以获得更好的太阳能电池性能。
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引用次数: 0
Reliability Analysis of pH Measurement on TLC4502 with E201C Electrodes based on ATmega328P Microcontroller: Approach to Analysis of Variation with ANOVA 基于ATmega328P单片机的E201C电极TLC4502 pH测量的可靠性分析:方差分析方法
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.62982
J. Julian, F. Wahyuni, Faiz Daffa Ulhaq
The development of the water management system has so far reached the stage of utilizing IoT technology in the monitoring and operation process. An essential factor in water that affects the quality of a substance is pH. The research aims to analyze and ensure that the devices have a small pH measurement error rate with TLC4502 & E201C. The calibration process was carried out using linear regression, and  value of 0.99 was obtained. Analysis was carried out using one-way ANOVA and Tukey HSD methods, and it was found that all data pairs rejected the null hypothesis (H0) and accepted the alternate hypothesis (H1). This hypothesis indicated a significant difference in the relative measurement error of pH in each condition. The standard error value of each measurement after filtration was 0.00, with an uncertainty value ranging from 0.07 to 0.02. If the sensor can provide measurement results with low error and high accuracy, then the sensor can be widely circulated and used. Through this research, the feasibility of a measuring instrument was developed based on the perspective of errors and high accuracy. A quality measuring instrument certainly helpful in various fields from the fisheries, hydroponics, and environmental sectors.
目前,水管理系统的发展已经达到了在监控和运行过程中利用物联网技术的阶段。水中影响物质质量的重要因素是pH值。本研究旨在分析并确保使用TLC4502和E201C的设备具有较小的pH测量错误率。校正过程采用线性回归进行,校正值为0.99。采用单因素方差分析(one-way ANOVA)和Tukey HSD方法进行分析,发现所有数据对均拒绝零假设(H0),接受备用假设(H1)。这一假设表明,不同条件下pH的相对测量误差有显著差异。过滤后每次测量的标准误差值为0.00,不确定度值为0.07 ~ 0.02。如果该传感器能够提供低误差、高精度的测量结果,那么该传感器就可以广泛流通和使用。通过本文的研究,从误差和高精度的角度出发,提出了一种测量仪器的可行性。一种质量测量仪器,在渔业、水培和环境部门等各个领域肯定是有用的。
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引用次数: 0
Telegram Application for Monitoring, Controlling and Protecting the Consumption of Household Electrical Appliances 用于监控、控制和保护家用电器消费的电报应用
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.61245
Dicky Andrian Nugraha, Amirullah Amirullah
Nominal electricity rates always increase, so it is necessary to take steps to save electricity consumption. One of the steps to save electricity consumption is taken by implementing a remote electrical equipment control system based on the Smart Home Internet of Things (IoT) system. Besides being able to save money, IoT systems are also able to help simplify work and human activities. This research aims to implement Internet of Things (IoT) equipment to monitor, control, protect, and On/Off timers for household electrical appliances monitored by the Telegram application and 16×2 LCD. Monitored system parameters i.e. voltage, current, frequency, power, energy, and electricity rates for each device. Device hardware i.e. Arduino Uno, 1 Channel Relay, PZEM-004t Voltage Sensor, NodeMCU ESP8266, and Current Sensor (Current Transformer). The equipment has been successfully tested on 10 different household appliances i.e. charged cellphones, fans, charged laptops, solder, iron, fluorescent lamp 36 W, television (TV), set-top box (STB)-TV, printer, and 5 W bulb lamp. The results showed that the prototype is capable of monitoring, controlling, protecting, and On/Off timer settings as well as being able to be monitored from home electric appliances both near and far using the 16×2 LCD and the Telegram application, respectively. The sensor tool using the Telegram application is able to measure/monitor the parameters of voltage, current and frequency at 10 loads with an average error value of 0.32%, 12.83% and 0.1% respectively compared to measurements using a Multimeter. The IoT prototype is also able to provide more complete, faster (4-5 sec) monitoring, control, protection, timer On/Off parameters and superior performance compared to devices designed by a number of previous researchers.
名义电费总是在上涨,因此有必要采取措施节约用电量。通过实施基于智能家居物联网(IoT)系统的远程电气设备控制系统,是节省电力消耗的步骤之一。除了能够节省资金外,物联网系统还能够帮助简化工作和人类活动。本研究旨在实现物联网(IoT)设备,通过Telegram应用程序和16×2 LCD监控家用电器的监控,控制,保护和开/关定时器。监控系统参数,即电压、电流、频率、功率、能量和每个设备的电费。设备硬件,即Arduino Uno, 1通道继电器,pzm -004t电压传感器,NodeMCU ESP8266和电流传感器(电流互感器)。该设备已成功在10种不同的家用电器上进行了测试,包括充电手机、风扇、充电笔记本电脑、焊料、熨斗、36w荧光灯、电视、机顶盒电视、打印机和5w灯泡。结果表明,该样机能够监控、控制、保护和开/关定时器设置,并能够使用16×2 LCD和Telegram应用程序分别从近和远的家用电器进行监控。使用Telegram应用程序的传感器工具能够测量/监控10个负载下的电压,电流和频率参数,与使用万用表的测量值相比,平均误差值分别为0.32%,12.83%和0.1%。与许多以前的研究人员设计的设备相比,物联网原型还能够提供更完整,更快(4-5秒)的监测,控制,保护,定时器开/关参数和卓越的性能。
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引用次数: 0
Differential Drive Mobile Robot Motion Accuracy Improvement with Odometry-Compass Sensor Fusion Implementation 差动驱动移动机器人运动精度的改进与里程表-罗盘传感器融合实现
Pub Date : 2023-04-18 DOI: 10.26418/elkha.v15i1.62095
S. Sungkono, Gillang Al Azhar, Adi Candra Kusuma, Syarifatul Izza
The Implementation of wheeled robot technology in the development of transportation vehicles makes them capable for operating automatically. In order to operate automatically, a vehicle requires stable control system which including motion kinematic algorithm where is developed in a robotic system. With the aim of being able to build an Unmanned Grounded Vehicle (UGV), in this study an UGV prototype was made in the form of a wheeled robot with Differential Drive Mobile Robot (DDMR) system. The robot is controlled by motion kinematic control algorithm and a trajectory tracking system that is used to get an estimate of the position caused by the robot’s movement, beside it made the robot can operate automatically. To support the performance of the control system, the robot prototype is added with a compass sensor which used as the wheel odometry sensor’s support. The process of combining wheel odometry and compass sensor data is carried out by using the sensor fusion algorithm, where the limit value for the RMS error for the position accuracy is not more than 0.15 meters. As the result of the trials, by adding a compass sensor and implementing sensor fusion algorithm is able to reduce the average RMS (Root Mean Square) error value of the motion accuracy into below 0.15 meters which previously worth 0.392 meters decreased into 0.075 meters.
轮式机器人技术在交通运输工具开发中的应用,使其具备了自动运行的能力。为了使车辆自动运行,需要稳定的控制系统,其中包括运动运动学算法,而运动运动学算法是机器人系统中发展起来的。为了能够构建无人地面车辆(UGV),在本研究中,以轮式机器人与差动驱动移动机器人(DDMR)系统的形式制作了UGV原型。通过运动运动学控制算法和轨迹跟踪系统对机器人进行控制,通过轨迹跟踪系统对机器人运动引起的位置进行估计,使机器人能够自动运行。为了支持控制系统的性能,在机器人样机中增加了罗盘传感器作为车轮里程计传感器的支撑。采用传感器融合算法对车轮里程计和罗经传感器数据进行结合处理,其中定位精度的均方根误差极限值不大于0.15米。试验结果表明,通过增加罗盘传感器并实施传感器融合算法,可以将运动精度的平均均方根误差值从0.392米降低到0.075米,降低到0.15米以下。
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引用次数: 1
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Elkha Jurnal Teknik Elektro
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