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PROTOTIPE SISTEM PULLY MEKANIK HIGH TORQUE PENGGERAK ALAT PEMBERSIH PANEL SURYA OTOMATIS DENGAN MASSA 40 KG Rakhmat, Riko; Repelianto, Ageng Sadnowo; Setyawan, FX Arinto; Fitriawan, Helmy; Sulistiyanti, Sri Ratna
Jurnal Teknoinfo Vol 18, No 2 (2024): Juli 2024
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jti.v18i2.3802

Solar energy is one of the New Renewable Energy (EBT) which is used specifically to meet electrical energy needs by converting it using a device often called a solar panel. Solar panels are generally arranged in PLTS in open areas so they have the potential to be exposed to dirt such as dust which can accumulate over a certain time and cause a reduction in the efficiency of sunlight irradiance on the surface of the solar panels. The solar panel cleaning system in solar power plants (PLTS) usually still uses conventional methods, namely cleaning by human power. In current technological developments, many automatic cleaning tools have been developed, but most of them in the field are only able to support a tool mass of under 10 kg. To clean a large 330 Wp solar panel, a frame construction is needed as a panel holder that can support a device mass of more than 10 kg, so in this paper a solar panel frame is designed that can support a weight of up to 40 kg. This tool is designed with a mechanical system that is able to support a larger mass of tools than is generally available in the field. In terms of mechanical system, the frame design of this tool uses a rectangular shape with hollow iron material to maintain a balanced position and is driven by a motor with a pully system as a kinetic energy transmission system for rotational motion using a High Torque motor. From the research results, it was found that the tool was able to work with a mass of 40 kg, a power consumption of 53.15 Watts with a tool operating time of 4 hours.

Automatic Tomato Plant Watering System Using Fuzzy Logic Control with Telegram-Based Monitoring System Purwiyanti, Sri; Murdika, Umi; Pratama, Pinkga Nata; Repelianto, Ageng Sadnowo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.966-977

In tomato plants, one of the decisive factors is the soil humidity factor, where the optimal humidity for tomato plants is 80%. For this reason, the tomato planting process requires regular and measurable irrigation or watering. This research aims to create an automatic watering system for tomato plants with soil humidity and pH detection. In this system, Fuzzy logic is used as the control method and this system is also equipped with a monitoring system using the telegram application. In this system, the humidity sensor and soil pH sensor will provide information about soil conditions and forward the electrical signal to the NodeMcu ESP32 microprocessor, as the control center and signal processing. This input signal is then processed using Fuzzy logic control to decide whether the system will activate the relay on the water pump. If the humidity value is <60%, the pump will activate and sprinkle water until the humidity reaches 80%. The measurement results of soil humidity, soil ph, and pump relay conditions will be sent via Internet of Things technology so that they can be monitored remotely using the Telegram application. From the research results, it is found that the system can work as expected with an accuracy value of 100% with a delay time for sending data to Telegram of 14.1 seconds. Keywords: Fuzzy logic, Humidity, NodeMcu, Sensor, Soil pH.

Inverse Kinematic of 1-DOF Robot Manipulator Using Sparse Identification of Nonlinear System Darajat, Anisa Ulya; Murdika, Umi; Repelianto, Ageng Sadnowo; Annisa, Resty
INTEK: Jurnal Penelitian Vol 10 No 1 (2023): April 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i1.4202

Robot Manipulator is the most robot used in industry since it can act like a human arm that can move objects. Research on robot manipulator has been widely carried out in various problems such as control systems, intelligence robots, degrees of freedom, mechanics-electronics systems and various other problems. In control systems there are studies to design of robot motion through kinematics. However, modeling the kinematic motion which has nonlinear characteristics will be more difficult if the number of degrees of freedom increases. To overcome this problem, this research will proposed sparse regression to modeling the kinematics of a robotic arm with the black box principle modeling. The results obtained indicate that the method The proposed one has the ability to identify robots manipulator with a fitness score of up to 100%. This matter shows that the proposed method can modeling the kinematic inverse of the manipulator robot without through complex calculations. From this research is expected can provide other research opportunities related to identification kinematics with the identification system method

PENGENALAN, PELATIHAN, DAN PERAKITAN RANGKAIAN ELEKTRONIKA SEDERHANA BERUPA KIPAS ANGIN MINI UNTUK PARA SISWA SMA Yuniati, Yetti; Purwiyanti, Sri; Repelianto, Ageng Sadnowo; Nasrullah, Emir; Baiqodar, Baiqodar
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 7 No. 3 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v7i3.462

Perkembangan teknologi yang sangat pesat saat ini membuat literasi elektronik sangat penting. Oleh karena itu, sangat penting untuk meningkatkan pengetahuan siswa tentang konsep dasar rangkaian elektronika. Tujuan dari kegiatan ini adalah untuk mengembangkan metode yang berguna untuk membantu siswa sekolah menengah mengeksplorasi, mengajar, dan membuat rangkaian elektronik sederhana termasuk kipas angin mini. Metode ini terdiri dari beberapa tahap yaitu: dimulai dengan pemahaman dasar tentang rangkaian elektronik dan kemudian memberikan petunjuk langkah demi langkah cara membuat kipas angin mini. Meskipun rangkaian elektronik ini sederhana, namun terdiri dari komponen dasar seperti resistor, transistor dan motor. Usai tutorial, para siswa berkesempatan membuat kipas mini sendiri dengan menggunakan komponen yang sudah disediakan. Hasil evaluasi kegiatan menunjukkan bahwa metode ini efektif dalam meningkatkan pemahaman siswa tentang dasar-dasar elektronika dan memberikan pengalaman langsung di lapangan. Kata kunci: teknologi, pelatihan, elektronika, perakitan, kipas angin mini

Rancang Bangun Kunci Elektronik Tervalidasi dengan Suara dan Foto Pengakses melalui Aplikasi Telegram Alam, Syaiful; Repelianto, Ageng Sadnowo; Purwiyanti, Sri; Sedjahtera, A; Samosir, Ahmad Saudi
Prosiding Seminar Nasional Ilmu Teknik Dan Aplikasi Industri Fakultas Teknik Universitas Lampung Vol. 7 (2024): Prosiding Seminar Nasional Ilmu Teknik dan Aplikasi Industi (SINTA) 2024
Publisher : Fakultas Teknik Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini bertujuan untuk membangun prototype sistem kunci elektronik menggunakan modul voice recognition v3 dengan sistem validasi oleh pemilik otoritas melalui foto yang dikirim via aplikasi telegram. Ada dua kunci (solenoid door lock) yang perlu terbuka agar dapat membuka pintu. Kunci diakses dengan pertama tama memvalidasi suara dengan modul voice recognition. Validasi ini berdasarkan kata kunci yang sesuai. Kesesuaian ini bukan hanya pada kata, tapi juga intonasi dan kejernihan suara. Jika sesuai, maka salah satu kunci akan terbuka. Selain itu, bersamaan dengan validasi suara itu, foto pengakses akan diambil oleh modul ESP32 Cam dan dikirim melalui aplikasi telegram ke pemilik otoritas untuk memperoleh validasi kedua. Jika diizinkan, maka pemilik otoritas akan mengirim sinyal kendali melalui aplikasi itu untuk membuka kunci yang kedua. Pemilik otoritas dapat mengendalikan kunci baik untuk membuka maupun mengunci pintu. Dari hasil pengujian diperoleh bahwa sistem pengaman pintu telah berhasil bekerja dengan baik. Modul voice recognition v3 dapat beroperasi baik di jarak 10 - 80 cm yang memiliki tingkat pengenalan suara dengan satu suku kata sebesar 95% hingga 100%. Selain itu, suara yang diterima perlu sesuai dengan intonasi dan warna suara yang telah direkam ke modul itu terlebih dulu. Sistem pengambilan dan pengiriman foto oleh ESP32-Cam juga bekerja dengan baik, demikian pula pengendalian kunci baik membuka maupun mengunci melalui aplikasi telegram.

Automatic Tomato Plant Watering System Using Fuzzy Logic Control with Telegram-Based Monitoring System Purwiyanti, Sri; Murdika, Umi; Pratama, Pinkga Nata; Repelianto, Ageng Sadnowo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.966-977

In tomato plants, one of the decisive factors is the soil humidity factor, where the optimal humidity for tomato plants is 80%. For this reason, the tomato planting process requires regular and measurable irrigation or watering. This research aims to create an automatic watering system for tomato plants with soil humidity and pH detection. In this system, Fuzzy logic is used as the control method and this system is also equipped with a monitoring system using the telegram application. In this system, the humidity sensor and soil pH sensor will provide information about soil conditions and forward the electrical signal to the NodeMcu ESP32 microprocessor, as the control center and signal processing. This input signal is then processed using Fuzzy logic control to decide whether the system will activate the relay on the water pump. If the humidity value is <60%, the pump will activate and sprinkle water until the humidity reaches 80%. The measurement results of soil humidity, soil ph, and pump relay conditions will be sent via Internet of Things technology so that they can be monitored remotely using the Telegram application. From the research results, it is found that the system can work as expected with an accuracy value of 100% with a delay time for sending data to Telegram of 14.1 seconds. Keywords: Fuzzy logic, Humidity, NodeMcu, Sensor, Soil pH.

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