Jurnal Listrik, Instrumentasi, dan Elektronika Terapan最新文献

{"title":"Design of Water Quality Monitoring System for Koi Fish Farming Using NodeMCU ESP32 and Blynk Application Based on Internet of Things","authors":"Dendi Rosandi, J. Junaidi, D. K. Apriyanto, A. Surtono","doi":"10.22146/juliet.v4i1.83131","DOIUrl":"https://doi.org/10.22146/juliet.v4i1.83131","url":null,"abstract":"Intisari – Penelitian tentang rancang bangun sistem pemantauan kualitas air budidaya ikan koi telah dilakukan menggunakan NodeMCU ESP32 berbasis Internet of Things (IoT) yang terhubung dengan perangkat Android melalui aplikasi Blynk. Sistem ini terdiri dari empat sensor kualitas air, yaitu jumlah padatan terlarut, tingkat keasaman, tingkat amonia, dan besar suhu. Sistem ini dibuat agar kualitas air ikan koi selalu terpantau secara langsung lewat Android. Keuntungan menggunakan perangkat Android sebagai penampil sistem pemantauan adalah memudahkan pengguna untuk memantau kondisi air di lokasi manapun. Hasil dari sistem ini ditampilkan dalam bentuk pemantauan pada aplikasi Blynk dan pada liquid crystal display (LCD) 20×4, dengan notifikasi tentang ambang batas kualitas air. Hasil penelitian menunjukkan bahwa sensor memiliki akurasi sebesar 94,92% untuk jumlah padatan terlarut, 98,88% untuk tingkat keasaman, 90,49% untuk tingkat amonia, dan 98,77% untuk suhu, dengan waktu tunggu selama 5 menit untuk tampilan hasil pemantauan. Tingkat akurasi yang tinggi menunjukan alat ini dapat digunakan untuk melakukan pemantauan kualitas air budidaya ikan koi.Kata kunci: Blynk, ESP32, IoT, pemantauan, kualitas airAbstract - A research study on the design and development of a water quality monitoring system for koi fish farming has been conducted using the Internet of Things (IoT) based NodeMCU ESP32, connected to an Android device through the Blynk application. This system consists of four water quality sensors, namely dissolved solids, acidity level, ammonia level, and temperature. The purpose of this system is to ensure direct monitoring of the koi fish water quality through an Android device. The advantage of using an Android device as the monitoring interface is that it allows users to monitor the water conditions from any location. The system's results are displayed through the Blynk application and a 20x4 liquid crystal display (LCD) screen, with notifications indicating the threshold limits of water quality. The research findings indicate that the sensors have an accuracy of 94.92% for dissolved solids, 98.88% for acidity level, 90.49% for ammonia level, and 98.77% for temperature, with a waiting time of 5 minutes for the monitoring results to be displayed. The high level of accuracy demonstrates that this device can be used effectively for monitoring the water quality in koi fish farming.Keywords: Blynk, ESP32, IoT, monitoring, water quality","PeriodicalId":142215,"journal":{"name":"Jurnal Listrik, Instrumentasi, dan Elektronika Terapan","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121473549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementation of Pre-Emphasis Analog Filter on Raspberry Pi Using Zero-Order Hold Discretization as a Pre-Processing to Humanoids’ Commands Recognition","authors":"J. Hendry, B. Sumanto, Yoga Mileniandi, Putri Mawaring Wening","doi":"10.22146/juliet.v3i2.71226","DOIUrl":"https://doi.org/10.22146/juliet.v3i2.71226","url":null,"abstract":"Intisari – Dalam teknologi yang menggunakan pengolahan sinyal wicara, tapis pre-emphasis sering digunakan sebelum proses ekstraksi ciri. Tapis ini dapat memperbesar amplitudo dari sinyal pada frekuensi tinggi sambil tetap mempertahankan bagian sinyal pada frekuensi rendah. Dalam penelitian ini, kami menerapkan tapis pre-emphasis analog yang dikembangkan dari tapi pelolos frekuensi tinggi. Lalu, filter tersebut didiskretkan menggunakan metode zero-order hold (ZOH). Kedua filter tersebut memiliki pole yang menunjukkan kestabilan. Nilai pole dari tapis diskret selalu di titik nol, sedangkan nilai zero -0.9375. Hasil rekonstruksi dengan menggunakan tapis ­de-emphasis menunjukkan nilai mean-squared error nol yang menyimpulkan bahwa strategi menggunakan metode frame-by-frame untuk implementasi tapis pre-emphasis sangat dianjurkan. Kata kunci – pre-emphasis, de-emphasis, mean-squared error, tapis, wicaraAbstract – In speech processing technology, the pre-emphasis filter is often used before feature extraction. This filter can emphasize amplitude with high frequencies while preserving the low frequencies side. In this research, we implemented a complete analog pre-emphasis filter from a conventional analog high-pass filter. Then the analog pre-emphasis filter is discretized using zero-order hold (ZOH). The analog and discrete forms have been shown stable according to pole location. The pole of the discrete form is always at the origin, while zero is -0.9375. The reconstruction result, with the help of the de-emphasis filter, shows no discrepancies over the original, hence the mean-squared error is zero which establishes the conclusion that the frame-by-frame method applies to the pre-emphasis filter is lossless and preferable.Keywords – pre-emphasis, de-emphasis, mean-squared error, filter, speech","PeriodicalId":142215,"journal":{"name":"Jurnal Listrik, Instrumentasi, dan Elektronika Terapan","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130648428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cheap and Fast Implementation of Linear and Cubic Piecewise Interpolation for Robot Path Smoothing on Arduino Uno Board","authors":"Tri Satya, J. Hendry, Aditya Putra Yudhananta, Zubainindra Bagus F. Meliawan","doi":"10.22146/juliet.v3i2.71227","DOIUrl":"https://doi.org/10.22146/juliet.v3i2.71227","url":null,"abstract":"Intisari – Teknologi mobile robot telah menjadi bagian dari keseharian manusia. Perkembangannya yang cepat telah menghasilkan robot–robot yang digunakan untuk tujuan khusus seperti layanan kebersihan, memindahkan barang di gudang, dan otomasi lainnya. Robot–robot ini biasanya memiliki kemampuan navigasi otomatis yang dihasilkan dari pelatihan berupa peta jalur yang akan dilalui. Permasalahannya adalah cukup banyak metode dengan tujuan tersebut yang tidak menyertakan metode penghalusan jalur saat membelok. Penambahan teknik tersebut memang memberatkan kerja otak robot apalagi jika metode yang digunakan cukup kompleks sehingga membutuhkan perangkat keras yang mahal. Penelitian ini mengusulkan pendekatan metode linear dan cubic terhadap persamaan aslinya. Hasilnya menunjukkan bahwa nilai mean squared error keduanya 0,7789 dan 0,7365 dengan waktu komputasi sekitar 0,809 detik dan 0,836 detik. Maka kedua pendekatan ini cukup menjanjikan untuk diterapkan pada perangkat keras yang murah untuk aplikasi mobile robot.Kata kunci – mobile robot, penghalusan jalur, interpolasi, linear, cubicAbstract – Mobile robot technology has become our daily need. The pace of development has yielded various useful robots that can do specific tasks like cleaning services, transporting stuff in a warehouse, and automation. These robots usually have self-navigation ability that comes from a pre-training map in the form of trajectories. The problem is most of the methods do not consider the path smoothing at a turning point. This is because it can burden the robot processor. Hence, in this research, we implemented an estimation of the two most popular methods in path smoothing based on interpolation which are linear and cubic interpolations. The result shows that the mean squared error between the estimated and original formula of interpolation is around 0.7789 and 0.7365 with execution times around 0.809 seconds and 0.836 seconds, respectively. Hence, both estimation methods can be very promising to be implemented in real-world mobile robots application.Keywords – mobile robot, path smoothing, interpolation, linear, cubic","PeriodicalId":142215,"journal":{"name":"Jurnal Listrik, Instrumentasi, dan Elektronika Terapan","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128006148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rancang Bangun Monitoring Kadar Gas Metana pada Pengolahan Sampah Organik Berbasis IoT Menggunakan Mikrokontroler ESP32","authors":"Salma Osa Novantri, U. Oktiawati","doi":"10.22146/juliet.v3i2.74791","DOIUrl":"https://doi.org/10.22146/juliet.v3i2.74791","url":null,"abstract":"Abstract –The accumulation of waste, especially organic trash, can cause respiratory distress. It also can even cause explosions. The explosion was caused by organic trash containing methane gas with certain levels reacting with free air. To create a clean and healthy environment from trash needs, every household should be further handles them, specifically with utilizing organic trash as a basic fertilizer. This tool is intended to help problems caused by the onset of methane gas in the process of processing organic trash. It can detect methane gas concentrations using MQ-4 sensors in ppm units and supported by DHT-22 sensors to detect air temperature and humidity in dust bin. The process of monitoring and processing data is conducted by ESP32 microcontroller connected to a website through internet in accordance with the principles of IoT (internet of things) through the media website.Keywords: organic trash, methane gas level, monitoring, MQ-4, IoTIntisari–Penumpukan sampah khususnya sampah organik dapat menyebabkan gangguan pernapasan bahkan dapat menimbulkan ledakan. Ledakan tersebut disebabkan karena sampah organik mengandung gas metana dengan kadar tertentu bereaksi dengan udara bebas. Dalam rangka menciptakan lingkungan yang bersih dan sehat dari sampah perlu ditindak lanjuti dengan penanganan sampah secara mandiri di setiap rumah tangga yaitu dengan memanfaatkan sampah organik sebagai pupuk dasar. Alat ini dimaksudkan untuk membantu permasalahan yang disebabkan oleh timbulnya gas metana pada proses pengolahan sampah organik. Alat ini dapat mendeteksi konsentrasi gas metana menggunakan sensor MQ-4 dalam satuan ppm dan didukung dengan sensor DHT22 untuk mendeteksi suhu dan kelembaban udara dalam tong sampah. Proses pemantauan dan pengolahan data didukung oleh microcontroller ESP32 dengan jaringan internet sesuai dengan prinsip IoT (internet of things) melalui media website.Kata kunci: sampah organik, kadar gas metana, monitoring, MQ-4, IoT","PeriodicalId":142215,"journal":{"name":"Jurnal Listrik, Instrumentasi, dan Elektronika Terapan","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133460589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Potensi Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) Berdasarkan Debit Air dan Kebutuhan Energi Listrik","authors":"D. Terapan, I. M. Sudana, J. Elektro","doi":"10.22146/juliet.v3i2.64410","DOIUrl":"https://doi.org/10.22146/juliet.v3i2.64410","url":null,"abstract":"Abstract – Electrical energy is a  basic requirement for most Indonesians. However, Sidoharjo Village residents cannot fully experience it since the electricity from PLN often goes out, especially during the rainy season. On the other hand, Sidoharjo Village has a large enough water potential from the river in Dukuh Rancah, but it has not been optimally used. Micro Hydro Power Plant (PLTMH) is one effort that can be done. To do so, it is necessary to know the hydrological values which include the mainstay of the river, the river basin area (DAS), and the effectiveness of dropping water. The river's reliable discharge is calculated by using the F.J. Mock method, under the principle of evaporation and transpiration (evapotranspiration). The data required are monthly rainfall, number of rainy days, humidity, and sunlight intensity. The calculation by using Ms. Excel showed the river's reliable discharge value of 1.3147 m3/s with an effective dropping height of 6 meters capable of producing a potential water power of 77.46 kW, 69.71 kW of turbine power, and 66.22 kW of generator output power. Meanwhile, the simulation results using the HOMER application showed that the river has a power capacity of 65.9 kW, an average power of 63.4 kW, minimum power of 26.4 kW, and a maximum power of 74.1 kW. It used a Kaplan turbine with a system efficiency of  0.85. It means that if the community needs 23 kW of electricity, the river is suitable to be used as a micro-hydropower plant system.Keywords – micro-hydro, F.J. Mock method, evapotranspiration, HOMER Intisari – Energi listrik merupakan kebutuhan pokok bagi sebagian besar masyarakat Indonesia.  Namun, kontinuitas suplai listrik tidak dapat dirasakan secara maksimal oleh masyarakat Desa Sidoharjo. Hal ini dikarenakan listrik dari PLN sering padam apalagi ketika musim hujan. Di sisi lain Desa Sidoharjo mempunyai potensi air yang cukup besar bersumber dari sungai Dukuh Rancah, tetapi belum dimanfaatkan secara optimal. Salah satu upaya yang dapat dilakukan adalah memanfaatkannya sebagai Pembangkit Listrik Tenaga Mikro Hidro (PLTMH). Untuk mengetahui besar potensi sungai sebagai pembangkit energi listrik perlu diketahui nilai-nilai hidrologi yang meliputi debit andalan sungai, luas daerah aliran sungai (DAS), dan tinggi jatuh efektif air. Perhitungan debit andalan sungai dilakukan menggunakan metode F.J. Mock, yaitu berdasarkan prinsip evaporasi dan transpirasi (evapotranspirasi). Data yang diperlukan adalah curah hujan bulanan, jumlah hari hujan, kelembaban udara, dan intensitas cahaya matahari. Hasil perhitungan menggunakan Ms. Excel menunjukkan nilai debit andalan sungai 1,3147 m3/s dengan tinggi jatuh efektif air 6 meter mampu menghasilkan potensi daya air sebesar 77,46 kW, daya turbin 69,71 kW, dan daya keluaran generator 66,22 kW. Sedangkan hasil simulasi menggunakan aplikasi HOMER menunjukkan bahwa sungai memiliki kapasitas daya sebesar 65,9 kW, daya rata-rata 63,4 kW, daya minimum 26,4 kW, dan daya maksimu","PeriodicalId":142215,"journal":{"name":"Jurnal Listrik, Instrumentasi, dan Elektronika Terapan","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126896200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pendeteksi Flashover dan Aplikasi Android pada TPSS LRT Jabodebek Berbasis Computer Vision dan Android Studio","authors":"Nerissa Diana Resty, Galuh Triyanto, I. Rifai","doi":"10.22146/juliet.v3i2.77741","DOIUrl":"https://doi.org/10.22146/juliet.v3i2.77741","url":null,"abstract":"Abstract – The traffic jam in Jakarta and the cities around it, namely Bogor, Depok, and Bekasi, became the government’s background in developing the Jabodebek light rail transit (LRT) project. In Jabodebek LRT construction, there is a TPSS which is short for Traction Power Substation, often known as a Traction substation. The Traction Substation is an electric power source for electric railroad trains, including the Jabodebek LRT. Inside the Traction station, there is a 20 kV Cubicle which is a power cable compartment. Some disturbances often occur in this 20 kV cubicle, one of which is the flashover. If the flashover remains, this is disturbing and detrimental to many people, including Jabodebek LRT passengers. Flashover can be caused by air humidity so that water vapor is attached to the power cable isolator. So this research was conducted as a preventative measure for the damage to cubicles due to flashover. Besides creating a system to detect flashovers, an Android application is also made to display the results of flashover detection. Raspberry Pi as the main controller of the flashover detection system, using the Hough Circle Transformation and Python programming language, as for the application using the Java programming language based on Android Studio. The data analysis method used is the Confusion Matrix. Based on the experimental results, the system works well to detect the flashover, with an average accuracy of the system reaching 80.18%. The distance, lighting factors, and barrier media affect the detection results.Keywords – Jabodebek LRT, flashover, Hough Circle, android applicationIntisari – Kemacetan yang terjadi di Jakarta berserta kota-kota di sekitarnya yakni Bogor, Depok, dan Bekasi menjadi latar belakang pemerintah dalam membangun proyek light rail transit (LRT) Jabodebek. Pada pembangunan LRT Jabodebek ini terdapat TPSS atau yang sering dikenal dengan istilah Gardu Traksi. Gardu Traksi merupakan sumber daya listrik untuk mengoperasikan kereta rel listrik termasuk LRT Jabodebek. Di dalam Gardu Traksi terdapat cubicle 20 kV yang di dalamnya terdapat kompartemen kabel daya. Beberapa gangguan sering terjadi pada cubicle 20 kV ini, salah satunya gangguan berupa flashover. Hal ini cukup mengganggu dan merugikan banyak orang termasuk penumpang LRT Jabodebek apabila adanya flashover ini terus dibiarkan. Flashover dapat disebabkan adanya kelembaban udara sehingga uap air melekat pada isolator kabel daya. Sehingga penelitian ini dilakukan sebagai langkah pencegahan terjadinya kerusakan cubicle akibat dari flashover. Selain membuat sistem untuk mendeteksi flashover dibuat juga aplikasi android untuk menampilkan hasil deteksi flashover. Raspberry Pi sebagai pengendali utama sistem pendeteksi flashover, dengan menggunakan Transformasi Hough Circle dan pemrograman bahasa Python, adapun untuk aplikasinya menggunakan bahasa pemrograman Java dengan basis Android Studio. Metode analisa data yang digunakan adalah confusion matrix. Hasil dari","PeriodicalId":142215,"journal":{"name":"Jurnal Listrik, Instrumentasi, dan Elektronika Terapan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126515472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perancangan Sistem Instrumentasi dan Kontrol Berbasis Super PLC F2424 serta Antarmuka Labview","authors":"Geston Bakti Muntoha, Ida Erna Wati, Muhammad Septian Wijaya","doi":"10.22146/juliet.v3i2.78564","DOIUrl":"https://doi.org/10.22146/juliet.v3i2.78564","url":null,"abstract":"Abstract – PLC-based control is widely used in modern industry because it is able to work automatically controlling actuators for certain functions such as controlling thread rods with actuators connected to THE PLC is a stepper motor. Controlling a stepper motor is different from controlling a conventional DC motor because a stepper motor has different characteristics from a conventional DC motor. To control the stepper motor, controllers such as microcontrollers and PLC (Programmable Logic Control) are needed because the basis of the control of the stepper motor is how to provide digital pulses to each phase of the stepper motor. This study aims to be a reference for industries in this case that use PLC devices in automatic control processes so that Super PLC F2424 can be another option to facilitate work and with a cheaper price reference can save expenses. The design of the F2424 Super PLC-based instrumentation and control system and LabVIEW interface was carried out using hardware consisting of Super PLC F2424, hybrid stepper motor type 23H276-42-4A(B), M542H type motor driver, with RS232 to USB communication cable and automatic control through the LabVIEW interface. Based on the test results of the control system, the test time results for advanced testing averaged 98.287 s with a time error of 2.333% as well as in the test time results for backward testing an average of 98.271 s with a time error of 2.366%.Keywords : PLC, control, instrumentation, motor, interface. Intisari – Kendali berbasis PLC banyak digunakan pada industri modern karena mampu bekerja secara otomatis mengendalikan aktuator untuk fungsi tertentu seperti mengendalikan batang ulir dengan actuator yang tersambung dengan PLC adalah motor stepper. Mengendalikan motor stepper berbeda dengan seperti mengendalikan motor DC konvensional karena motor stepper memiliki karakteristik berbeda dengan motor DC konvensional. Untuk mengendalikan motor stepper diperlukan kontroler seperti mikrokontroler dan PLC (Programmable Logic Control) karena basis kendali motor stepper adalah bagaimana memberikan pulsa – pulsa digital ke tiap fasa pada motor stepper. Penelitian ini bertujuan agar dapat menjadi referensi untuk industri dalam hal ini yang menggunakan perangkat PLC pada proses kendali otomatis sehingga Super PLC F2424 dapat menjadi pilihan lain guna mempermudah pekerjaan dan dengan referensi harga yang lebih murah dapat menghemat pengeluaran. Perancangan sistem instrumentasi dan kontrol berbasis Super PLC F2424 serta antarmuka LabVIEW dilakukan dengan menggunakan hardware yang terdiri dari Super PLC F2424, motor stepper hybrid tipe 23H276-42-4A(B), driver motor tipe M542H, dengan kabel komunikasi RS232 to USB serta kendali otomatis melalui antarmuka LabVIEW. Berdasarkan hasil pengujian sistem kendali tersebut didapatkan hasil waktu uji untuk pengujian maju rata-rata sebesar 98,287 s dengan error waktu sebesar 2,333% juga pada hasil waktu uji untuk pengujian mundur rata-rata sebesar 98,27","PeriodicalId":142215,"journal":{"name":"Jurnal Listrik, Instrumentasi, dan Elektronika Terapan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129475389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}