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Implementasi Sintesis Suara Saron Menggunakan Petikan Senar Gitar Dengan Metode Pitch Shifting 声音合成工具使用吉他弦与振荡方法进行练习
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.80818
Andreas Febrillianto Primawan, Yohannes Suyanto, Catur Atmaji
 Gamelan is traditional Indonesian musical instruments that is often used in traditional events and parties.The community's need for the gamelan has actually increased, but unfortunately the price of gamelan is very expensive and the gamelan itself is difficult to move from one place to another place. Besides that, the limited tones that can be played by gamelan reduce the level of public interest in playing this instrument. Current technological developments make it possible to perform voice synthesis with several methods. One method that can be used is pitch shifting.This study aims to generate a synthetic saron sound based on plucking a guitar string. Analysis of the saron sound signal in the frequency domain is carried out to obtain the semitone values needed in the synthesis process. Synthetic saron signal generation is done by calling synthetic saron sounds that are stored in soundfont form, with reference data in the form of high and low pitch obtained from the guitar input pitch detection. Onset detection of guitar strokes is used as the initial trigger for calling out synthetic saron tones. The test was carried out by looking for similarities between the sound data of the original saron and synthetic saron using the cross-correlation method. The test results obtained a similarity accuracy rate of 91.6%. On the results of testing the guitar strum signal with the generation output, the average delay time for each strum is 0.152 seconds. From the results obtained, the system is classified as fast and accurate enough to be implemented in everyday life.
Gamelan是印度尼西亚的传统乐器,经常用于传统活动和派对。社区对gamelan的需求实际上已经增加,但不幸的是gamelan价格非常昂贵,gamelan本身很难从一个地方移动到另一个地方。除此之外,伽美兰可以演奏的有限音调降低了公众对演奏这种乐器的兴趣。当前的技术发展使得用几种方法进行语音合成成为可能。可以使用的一种方法是变桨。这项研究的目的是在拨动吉他弦的基础上产生一种合成的沙隆音。在频域中对沙隆声音信号进行分析,以获得合成过程中所需的半音值。合成沙隆信号生成是通过调用以soundfont形式存储的合成沙隆声音,以及从吉他输入音高检测获得的高低音高形式的参考数据来完成的。吉他敲击的启动检测被用作发出合成沙隆音调的初始触发。该测试是通过使用互相关方法寻找原始沙隆和合成沙隆的声音数据之间的相似性来进行的。测试结果的相似准确率为91.6%。在用生成输出测试吉他弹拨信号的结果上,每次弹拨的平均延迟时间为0.152秒。从获得的结果来看,该系统被归类为足够快速和准确,可以在日常生活中实施。
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引用次数: 0
Monitoring Ketinggian Air dan Curah Hujan Dalam Early Warning System Bencana Banjir Berbasis IoT 基于物联网的洪涝灾害预警系统中的水位和降雨量监测
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.83569
Ivander Achmad Wandi, A. Ashari
 Floods are natural disasters where there is an excessive volume of water that dampens the land. If left unchecked, flooding can bring disease, cause environmental damage and hinder people's mobility. Therefore, we need a system that can provide early warning to the community before a flood occurs. As technology develops, we can monitor the water level in an area to anticipate flooding. This concept is called the Early Warning System (EWS). IoT can help with real-time and continuous monitoring and warning of floods. IoT can also monitor air levels remotely. The MQTT protocol research also uses water level and rainfall sensors as data for flood detection. This system will detect water level and rainfall in real time. If the water level and rainfall reach a certain limit, the system will provide a warning to local residents via chatbot. There are 3 types of alerts in this system. Monitoring results are also displayed via the dashboard and sensor readings will be stored in the cloud database. The evaluation results show that the designed system can work well in providing flood early warning. Bots on Telegram have also sent notifications with an average delay of 0.561 seconds.
洪水是一种自然灾害,水量过大,淹没了土地。如果不加以控制,洪水会带来疾病,造成环境破坏,阻碍人们的行动。因此,我们需要一个能够在洪水发生前向社区提供预警的系统。随着技术的发展,我们可以监测一个地区的水位,以预测洪水。这个概念被称为预警系统(EWS)。物联网可以帮助实时、连续地监测和预警洪水。物联网还可以远程监测空气水平。MQTT协议研究还使用水位和降雨量传感器作为洪水检测的数据。该系统将实时检测水位和降雨量。如果水位和降雨量达到一定限度,系统将通过聊天机器人向当地居民发出警告。此系统中有3种类型的警报。监测结果也通过仪表板显示,传感器读数将存储在云数据库中。评价结果表明,所设计的系统能够很好地进行洪水预警。Telegram上的机器人也发送了平均延迟0.561秒的通知。
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引用次数: 0
Klasifikasi Suara Untuk Memonitori Hutan Berbasis Convolutional Neural Network 声音分类为基于神经对联性网络的丛林监控
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.79536
Rizqi Fathin Fadhillah, R. Sumiharto
Forest has an important role on earth. The need to monitor forest from illegal activities and the types of animals in there is needed to keep the forest in good condition. However, the condition of the vast forest and limited resource make direct forest monitoring by officer (human) is limited. In this case, sound with digital signal processing can be used as a tool for forest monitoring. In this study, a system was implemented to classify sound on the Raspberry Pi 3B+ using mel-spectrogram. Sounds that classified are the sound of chainsaw, gunshot, and the sound of 8 species of bird. This study also compared pretrained VGG-16 and MobileNetV3 as feature extractor, and several classification methods, namely Random Forest, SVM, KNN, and MLP. To vary and increase the number of training data, we used several types of data augmentation, namely add noise, time stretch, time shift, and pitch shift. Based on the result of this study, it was found that the MobileNetV3-Small + MLP model with combined training data from time stretch and time shift augmentation provide the best performance to be implemented in this system, with an inference duration of 0.8 seconds; 93.96% accuracy; and 94.1% precision.
森林在地球上有着重要的作用。需要监测森林中的非法活动和动物类型,以保持森林的良好状态。然而,广阔的森林条件和有限的资源使得官员(人)对森林的直接监测是有限的。在这种情况下,具有数字信号处理的声音可以用作森林监测的工具。在本研究中,实现了一个使用mel声谱图对树莓派3B+上的声音进行分类的系统。分类的声音有电锯声、枪声和8种鸟类的声音。本研究还比较了预训练的VGG-16和MobileNetV3作为特征提取器,以及几种分类方法,即随机森林、SVM、KNN和MLP。为了改变和增加训练数据的数量,我们使用了几种类型的数据增强,即添加噪声、时间拉伸、时间偏移和基音偏移。基于本研究的结果,发现MobileNetV3 Small+MLP模型结合了时间拉伸和时移增强的训练数据,在该系统中实现的性能最好,推理持续时间为0.8秒;准确率93.96%;精密度94.1%。
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引用次数: 0
Klasifikasi Eritrosit Pada Thalasemia Minor Menggunakan Fitur Konvolusi dan Multi-Layer Perceptron 利用卷积和多层感知器特征对轻度地中海贫血的红细胞分类
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.83473
Zuhrufun Nufusy Nugroho, Agus Harjoko, M. Auzan
 Thalassemia blood disorder is a condition that can affect the blood's ability to function normally and can lead to erythropoiesis. In this blood disorder, there are nine types of abnormal erythrocytes, namely elliptocytes, pencils, teardrops, acanthocytes, stomatocytes, targets, spherocytes, hypochromic and normal. At present, thalassemia examination is carried out using Hb electrophoresis and is done manually so it will be subjective and take a long time. Therefore, this research implements the Convolutional Neural Network (CNN) and Multi-Layer Perceptron (MLP) algorithms. This study aims to determine the performance of convolution features as image feature extraction and MLP as an image classification method and then implemented on NVIDIA Jetson Nano. The convolution features used in this study apply the CNN VGG16 architecture. Then model learning is carried out on 7245 data by configuring hyperparameters. The best accuracy with the hyperparameter configuration is a batch that is 16, the epoch is 400, the learning rate is 0.0001, the dropout1 layer is 0.1 and the dropout2 layer is 0.1. From this configuration it produces optimal accuracy at 96.175%. In the following, the model that has been made is then implemented on the NVIDIA Jetson Nano as a mobile media to be applied to the medical world resulting in an average prediction speed for each class of 48.330 seconds. The obtained performance time and accuracy are suitable for use by medical personnel to predict the class of abnormal erythrocytes.
地中海贫血血液病是一种会影响血液正常功能并导致红细胞生成的疾病。在这种血液病中,有九种类型的异常红细胞,即椭圆细胞、铅笔、泪滴、棘细胞、口腔细胞、靶细胞、球细胞、低色素和正常红细胞。目前,地中海贫血的检查是使用Hb电泳进行的,并且是手动进行的,因此这将是主观的,需要很长时间。因此,本研究实现了卷积神经网络(CNN)和多层感知器(MLP)算法。本研究旨在确定卷积特征作为图像特征提取和MLP作为图像分类方法的性能,然后在NVIDIA Jetson Nano上实现。本研究中使用的卷积特征应用了CNN VGG16架构。然后通过配置超参数对7245个数据进行模型学习。超参数配置的最佳精度是批次为16,历元为400,学习率为0.0001,dropout1层为0.1,dropout2层为0.1。通过这种配置,它产生了96.175%的最佳准确率。在下文中,所制作的模型随后在NVIDIA Jetson Nano上实现,作为应用于医疗世界的移动媒体,每类的平均预测速度为48.330秒。所获得的表现时间和准确性适合医务人员用于预测异常红细胞的类别。
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引用次数: 0
Rancang Bangun Sistem Deteksi Posisi Objek dalam Rumah dengan Metode Support Vector Machine Berdasar Kekuatan Sinyal Wi-Fi 设计一个系统,用基于Wi-Fi信号的支持机检测系统
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.80736
Damar Buana Murti, Danang Lelono, Roghib Muhammad Hujja
 Indoor Positioning System (IPS) is an object tracking technology that utilizes networks such as Wireless Fidelity (Wi-Fi) to determine the location of an object. IPS is closely related to the implementation of the Internet of Things (IoT) to carry out an order in a smart home. However, the weakness of IPS is the attenuation of the signal received when the tag or target moves to a room that borders another room, causing errors in tracking. The IPS implementation will be carried out based on the 2.4 GHz Wi-Fi signal emitted from the ESP32.The research will use the trilateration method which requires three sink nodes to receive signal strength, then a machine learning algorithm, namely Support Vector Machine (SVM), to classify rooms in three different scenarios, namely when the target is stationary, moving between rooms, and is on the edge room adjacent to another room.The results of the test show that the three scenarios provide different levels of accuracy. The accuracy of the system on the target scenario while still in the room reaches 100%, on the target moving room scenario reaches 86.15%, and on the target scenario that is at the edge of the room adjacent to another room reaches 80%.
室内定位系统(IPS)是一种利用无线保真(Wi-Fi)等网络来确定物体位置的物体跟踪技术。IPS与物联网(IoT)的实施密切相关,在智能家居中执行订单。然而,IPS的弱点是当标签或目标移动到与另一个房间相邻的房间时,接收到的信号会衰减,导致跟踪错误。IPS的实现将基于ESP32发出的2.4 GHz Wi-Fi信号进行。本研究将使用三边测量法,该方法需要三个sink节点接收信号强度,然后使用机器学习算法,即支持向量机(SVM),对三种不同场景下的房间进行分类,即目标静止时,在房间之间移动时,以及在与另一个房间相邻的边缘房间。测试结果表明,三种场景提供了不同程度的准确性。系统对目标场景在室内时的准确率达到100%,对目标移动房间场景的准确率达到86.15%,对房间边缘与另一个房间相邻的目标场景的准确率达到80%。
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引用次数: 0
Deteksi Onset Gamelan Bebasis DWPT dan BLSTM 检测DWPT和BLSTM的Onset自由游戏系统
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.79534
Hisyam Mustofa, A. E. Putra
Gamelan consists of various kinds of instruments that have different characteristics. Each has characteristics in terms of the basic frequency, amplitude, signal envelope, and different ways of playing it, resulting in differences in the sustain power of the signal. These characteristics cause the problem of vanishing gradient in the Elman Network model which was used in previous studies in studying the onset detection in the Saron instrument signal which has an average interval of more than 0.6 seconds. This study uses BLSTM (Bidirectional Long Short Term Memory) as a model for training and Wavelet Packet Transformation to design a psychoacoustic critical bandwidth as a model for feature extraction. For the peak picking method, this study uses a fixed threshold method with a value of 0.25. The use of the BLSTM model supported by the Wavelet Packet Transform is expected to overcome the vanishing gradient that exists in a simple RNN architecture. The model was tested based on 3 evaluation parameters, namely precision, recall and F-Measure. Based on the test scenario carried out, the model can overcome the vanishing gradient problem on the Saron instrument which has an average interval between onset of 600 ms. Out of a total of 428 onsets on the Saron instrument, the model successfully detected 426 correctly, with 4 incorrectly detected onsets and 2 undetected onsets. A thorough evaluation for each of the precision, recall, and F1-Measure algorithms obtained 0.975, 0.945 and 0.960.
Gamelan由具有不同特征的各种乐器组成。每种信号在基频、振幅、信号包络和不同的播放方式方面都有特点,导致信号的维持功率不同。这些特征导致Elman网络模型中的消失梯度问题,该模型在先前的研究中用于研究平均间隔超过0.6秒的Saron仪器信号中的发作检测。本研究使用BLSTM(双向长短期记忆)作为训练模型,并使用小波包变换设计心理声学临界带宽作为特征提取模型。对于峰值拾取方法,本研究使用值为0.25的固定阈值方法。使用小波包变换支持的BLSTM模型有望克服简单RNN架构中存在的消失梯度。该模型基于精度、召回率和F-Measure三个评价参数进行了测试。基于所执行的测试场景,该模型可以克服Saron仪器上的消失梯度问题,该问题的平均发作间隔为600ms。在Saron仪器总共428次发作中,该模型成功检测到426次正确发作,其中4次检测不正确,2次未检测到。对精度、召回率和F1 Measure算法的每种算法进行彻底评估,分别获得0.975、0.945和0.960。
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引用次数: 0
Perancangan dan Pembuatan Data Acquisition Device Sebagai Sistem Akuisisi Data untuk Kendali Mobil Formula Student 学生配方奶粉移动控制数据采集系统数据采集装置的设计与实现
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.83395
Leonard Fidelcristo Supit, Tri Wahyu Supardi, T. Widodo
Data Acquisition Device (DAQ) is an electronic component used in formula student vehicles. To optimize the performance of the formula student vehicle and its driver, it is necessary to analyze and monitor the data acquisition system. Parameters acquired on the car include the position of the brake pedal/throttole and wheel speed.DAQ system has 5 input channels namely 3 analog input pins and 2 digital input pins, and 3 output channels, which is the controller pin, fault pin, and brake light pin. The DAQ system in this research is designed and made using Teensy 3.6, a signal conditioning circuit consisting of an RC low pass filter, voltage follower, non-inverting amplifier, and logic level shifter. DAQ system uses CANBUS to read and process sensor data.             DAQ system can acquire data from the KTC Linear Motion Position sensor PZ-12-A-50P with an accuracy value of 99,91%; Hall-effect Rotary Position sensor RTY120LVNAX with an accuracy value of 99,94% for both the first and second sensors; and Proximity sensor LJ12A3-4-Z/BX with an accuracy value of 99,58% for the first sensor and 99,46% for the second sensor. DAQ is able to run controller signal processing, detect faults, and activate brake light signal according to FSAE rules.
数据采集设备(DAQ)是一种用于学生方程式赛车的电子元件。为了优化方程式学生车及其驾驶员的性能,有必要对数据采集系统进行分析和监控。在车上获得的参数包括制动踏板/油门和车轮速度的位置。DAQ系统有5个输入通道,即3个模拟输入引脚和2个数字输入引脚,3个输出通道,分别是控制器引脚、故障引脚和刹车灯引脚。本研究的DAQ系统是用Teensy 3.6设计和制作的,该信号调理电路由RC低通滤波器、电压跟随器、非反相放大器和逻辑移电平器组成。数据采集系统采用can总线对传感器数据进行读取和处理。DAQ系统可以采集KTC直线运动位置传感器PZ-12-A-50P的数据,精度值为99.91%;霍尔效应旋转位置传感器RTY120LVNAX,第一和第二传感器的精度值均为99.94%;接近传感器LJ12A3-4-Z/BX,第一传感器的精度值为99.58%,第二传感器的精度值为99.46%。DAQ能够运行控制器信号处理,检测故障,并根据FSAE规则激活刹车灯信号。
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引用次数: 0
Implementasi Sistem Kendali Keseimbangan Statis Pada Robot Quadruped Menggunakan Reinforcement Learning 基于强化学习的四足机器人静态平衡控制系统的实现
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.73865
Hidayat Eko Saputro, Nur Achmad Sulistyo Putro, S. Hartati, Ilona Usuman
The basic thing to consider when building a quadruped robot is the issue of balance. These factors greatly determine the success of the quadruped robot in carrying out movements such as stabilizing the body on an inclined plane, walking movements and others. Conventional feedback control methods by performing mathematical modeling can be used to balance the robot. However, this method still has weaknesses. The application of conventional feedback control methods often results in an inaccurate controller, so it must be manually tuned for its application. In this study, reinforcement learning methods were used using Q-Learning algorithms. The use of reinforcement learning methods was chosen because no mathematical calculations are needed to control the balance of quadruped robots. The process of learning the system to train the agent's abilities is carried out using a Gazebo simulator. The learning results show that the system could run well as evidenced by the higher value of sum rewards per episode.
制造四足机器人时要考虑的基本问题是平衡问题。这些因素在很大程度上决定了四足机器人在执行诸如在斜面上稳定身体、行走运动等运动时的成功。传统的反馈控制方法可以通过数学建模来实现机器人的平衡。然而,这种方法仍然有缺点。传统的反馈控制方法的应用往往导致不准确的控制器,因此必须手动调整它的应用。在本研究中,使用Q-Learning算法使用强化学习方法。选择使用强化学习方法是因为不需要数学计算来控制四足机器人的平衡。使用Gazebo模拟器来学习系统以训练代理的能力。学习结果表明,系统运行良好,每集的总奖励值较高。
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引用次数: 0
SCADA Sistem Pengisian dan Pengepakan Kemasan Multigrain Rice Berisi 2-3 Macam Biji-bijian
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.72708
Theresia Prima Ari Setiyani, Adrian Kristoforus, Yashinta Maretyana
The process of packing food products manually raises many problems, including inefficiency, quality of hygiene, changing the composition according to market demand, and monitoring, that are difficult to do remotely in real-time. This research builds SCADA for filling and packing Multi-grain rice packages containing 2-3 kinds of grains.The composition of the grain be filled in the package through the HMI. The conveyor moves to carry the packing bags and stops at each grain container. The rotary vane feeder of the container will rotate so that the packaging bag will be filled with grains and then glued together. The position of the packaging bag is detected by 3 pairs of photosensors. The actuator control uses a Schneider M221 PLC via ethernet port. The communication system between the I/O devices and the PLC uses a cable, while the communication between the PLC and the HMI is via the internet network.The system is capable of filling the material according to the desired composition, sealing, and packing to the number of packages. HMI feeds composition input to the system, displays animations correctly, raises an alarm when the material in the tub is running low, and  record production as a daily report.
人工包装食品的过程会产生许多问题,包括效率低下,卫生质量,根据市场需求改变成分以及监控,这些问题很难远程实时完成。本研究建立了2-3种杂粮大米包装的灌装与包装SCADA系统。通过人机界面将颗粒的成分填充到包装中。传送带移动以携带包装袋,并在每个谷物容器处停下来。集装箱的旋转叶片给料器会旋转,使包装袋内填满谷物,然后粘合在一起。包装袋的位置由3对光电传感器检测。执行器控制采用施耐德M221 PLC通过以太网端口。I/O设备与PLC之间的通信系统采用电缆,PLC与人机界面之间的通信采用internet网络。该系统能够根据所需的成分、密封和包装数量对物料进行填充。HMI将合成输入输入到系统中,正确显示动画,当桶中的材料运行不足时发出警报,并将生产记录为每日报告。
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引用次数: 0
Analisis Spesifisitas Terhadap Sensor NPK NPK传感器人脸特异性分析
Pub Date : 2023-04-30 DOI: 10.22146/ijeis.79672
Ivan Lionel, Abd Ro’uf, Bakhtiar Alldino
Insufficient use of fertilizers results in non-optimal plant growth, while excessive use is wasteful and results in pollution. Sensor usage is one method for measuring the nutrient content in the soil so that the fertilization process can be carried out precisely. Accuracy, precision, and error are commonly used in analyzing sensor quality. But for chemical measurements, the specificity also needs to be analyzed. This is because the soil contains various types of nutrients, so it is necessary to know whether the readings from the sensor only come from the desired nutrients or the others. In this writing, the elements measured were N, P, and K which are nutrients needed by plants in large quantities. The sensors were tested using compounds containing N, P, or/and K elements and NPK fertilizers with different NPK ratios. Results of this study prove that the sensor is not specific as the readings are known to use the electroconductivity method as proved by the regression results between the two variables which have R² ≈ 1 correlation. In addition, the sensor also produces readings for elements/compounds that should not be read and cannot distinguish the ratio of types of compound NPK fertilizer with different types.
肥料使用不足会导致植物生长不理想,而过度使用则会造成浪费和污染。传感器的使用是测量土壤中养分含量的一种方法,以便精确地进行施肥过程。精度、精密度和误差通常用于分析传感器质量。但对于化学测量,其特异性也需要分析。这是因为土壤中含有各种类型的营养物质,因此有必要知道传感器的读数是否只来自所需的营养物质或其他营养物质。在这篇文章中,测量的元素是N、P和K,它们是植物大量需要的营养物质。使用含有N、P或/和K元素的化合物以及具有不同NPK比率的NPK肥料来测试传感器。这项研究的结果证明,传感器是不特定的,因为已知读数使用导电性方法,这两个变量之间的回归结果证明了这一点,R²≈1相关。此外,传感器还产生不应读取的元素/化合物的读数,并且不能区分不同类型的复合NPK肥料的类型比例。
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引用次数: 0
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IJEIS Indonesian Journal of Electronics and Instrumentation Systems
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