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STUDI METODE CRAMER DAN METODE INVERS MATRIK PADA PERSOALAN RANGKAIAN LISTRIK Ilmi, Ulul; Faroh, Rifky Aisyatul; Hanifah, Ayu Ismi; Mukhoyyaroh, Nur Indah; Masruroh
Jurnal JE-UNISLA : Electronic Control, Telecomunication, Computer Information and Power System Vol 8 No 2 (2023): JE-UNISLA
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/je-unisla.v8i2.1079

Abstract

In the world of engineering, one example of using a matrix is to find a solution to a system of linear equations (SLE). In the scientific field that studies electrical circuits, it is not uncommon to use matrices to calculate the quantities or values in an electric circuit. To make it easier to find these values, an operation process based on the Cramer and inverse methods based on Matlab is used so that finally the values contained in the electrical circuit are obtained. These values are electric current and electric voltage. In this study, it can be concluded that the use of the Matlab-based matrix inverse method is better in terms of the accuracy of the research results, when compared to the manual use of the Cramer method, which has an accuracy difference of 0.0006%. For the calculation of the current variable i3. and 0.81% for the calculation of the electric voltage variable at node AB.
Pelatihan Pembuatan Sistem Penyiraman Tanaman Otomatis Pada Taman Alun-Alun Desa Drajat Wakhid, Abdur Rohman; Santoso, Eko Wahyu; Faroh, Rifky Aisyatul; Laksono, Arief Budi; Bachri, Affan; Ilmi, Ulul; Amri, Sholihul; Prasetyo, M. Romadhoni Eko; Waliuddin, Aubait; Ni’am, Wafirun; Hidayat, Faruq Dwi Fahrul; Saputra, M. Bayu Irwan; Utomo, Heru Prasetio
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 9 No. 3 (2024): September
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v9i3.2131

Abstract

Pengabdian ini bertujuan untuk memudahkan warga Desa Drajat dalam melakukan perawatan tanaman di taman alun-alun desa secara otomatis sehingga lebih efektif dan efisien. Sistem penyiraman tanaman otomatis yang dirancang juga bertujuan untuk menghemat energi serta memastikan penyiraman yang teratur dan merata. Kegiatan pengabdian dilakukan melalui sosialisasi dan pelatihan terkait penggunaan Timer Relay untuk membangun sistem penyiraman tanaman otomatis. Sasaran dari kegiatan ini adalah warga Desa Drajat, dengan peserta yang terdiri dari pelajar, nelayan, dan karyawan, berjumlah lebih dari 15 orang. Pelatihan ini meningkatkan pengetahuan warga tentang sistem penyiraman otomatis berbasis Timer Relay hingga 70%. Penerapan sistem ini diharapkan dapat mengatasi permasalahan penyiraman manual yang tidak konsisten dan meningkatkan efisiensi dalam perawatan taman alun-alun. Selain itu, kegiatan ini bertujuan untuk memperluas pengetahuan warga tentang teknologi modern yang dapat mempermudah aktivitas sehari-hari. Hasil dari kegiatan ini menunjukkan bahwa sistem penyiraman otomatis yang dikembangkan berhasil diimplementasikan, memberikan manfaat bagi lingkungan sekitar, dan memungkinkan warga untuk merawat tanaman secara lebih efisien. Training on the Creation of an Automatic Plant Watering System in the Drajat Village Square Park Abstract This community service aims to facilitate the residents of Drajat Village in automatically maintaining plants in the village square park, making the process more effective and efficient. The automatic plant watering system is also designed to save energy and ensure regular and even irrigation. The service activities were conducted through socialization and training on the use of Timer Relay to build an automatic plant watering system. The target audience was the residents of Drajat Village, with participants including students, fishermen, and employees, totaling more than 15 people. This training increased the residents' knowledge of the automatic watering system using Timer Relay by up to 70%. The implementation of this system is expected to resolve the inconsistency of manual watering and improve efficiency in maintaining the village square park. Additionally, the activity aimed to broaden the community's knowledge of modern technology that can simplify daily tasks. The results showed that the automatic watering system was successfully implemented, providing benefits to the surrounding environment and enabling residents to maintain the plants more efficiently.
Moving Horizon State Estimation for Linear System with Application to Autonomous Vehicle Purnawan, Heri; Ilmi, Ulul; Faroh, Rifky Aisyatul; Ar Rizqi, Ahmad Bustanul Ali; Resmi, Fitroh
InPrime: Indonesian Journal of Pure and Applied Mathematics Vol 5, No 1 (2023)
Publisher : Department of Mathematics, Faculty of Sciences and Technology, UIN Syarif Hidayatullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/inprime.v5i1.28313

Abstract

AbstractThis paper proposes moving horizon estimation (MHE) to estimate the state variables of autonomous vehicle linear systems under measurement noises. To solve the MHE optimization problem, quadratic programming is employed. The steering angle, yaw angle, and global position constraints of an autonomous vehicle are considered in the estimation design. According to the simulation results, it can be observed that although the longer MHE step can give better results compared to the shorter MHE step, the difference in the MHE step only slightly affects the estimated results. However, the longer MHE step can increase the computational time. Additionally, the proposed MHE scheme is compared to the Kalman filter (KF) estimator. Based on the obtained results, the KF gives a better estimation than the MHE, but this notion must be verified for other case studies.Keywords: autonomous vehicle; Kalman filter; linear system; MHE; quadratic programming. AbstrakPaper ini mengusulkan moving horizon estimation (MHE) untuk mengestimasi variabel keadaan sistem linier kendaraan otonom karena pengaruh noise pengukuran. Untuk menyelesaikan masalah optimasi MHE, digunakan pemrograman kuadratik. Kendala sudut kemudi, sudut yaw dan posisi global dari kendaraan otonom dipertimbangkan dalam desain estimasi. Dari hasil simulasi dapat diketahui bahwa meskipun langkah MHE yang lebih panjang dapat memberikan hasil yang lebih baik dibandingkan dengan langkah MHE yang lebih pendek, perbedaan langkah MHE hanya sedikit mempengaruhi hasil estimasi. Namun, langkah MHE yang semakin panjang dapat meningkatkan waktu komputasi. Selain itu, skema MHE yang diusulkan dibandingkan dengan estimator Kalman filter (KF). Berdasarkan hasil yang diperoleh, KF memberikan estimasi yang lebih baik daripada MHE, tetapi gagasan ini harus diverifikasi untuk studi kasus lainnya.Kata Kunci: kendaraan otonom; Kalman filter; sistem linier; MHE; pemrograman kuadratik. 2020MSC: 62P35, 65D19