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All Journal Jurnal Simetris Proceeding SENDI_U Elektrika Kilat Jurnal Pengabdian Masyarakat Iron (sipil, elektro,mesin) Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Jurnal Teknik Elektro (JTE) MASDA Journal of Civil Engineering and Technology Sciences Jurnal Teknik Sipil Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Pengabdian KOLABORATIF
Roni Kartika Pramuyanti
Universitas Semarang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation

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PENGARUH KEBISINGAN LALU LINTAS TERHADAP AKTIVITAS BELAJAR MENGAJAR DI GEDUNG V UNIVERSITAS SEMARANG Fahrudin Ahmad; Roni Kartika Pramuyanti; Erlinasari; Kukuh Wisnuaji Widiatmoko
Journal of Civil Engineering and Technology Sciences Vol. 3 No. 2 (2024): October : Journal of Civil Engineering and Technology Sciences
Publisher : Faculty Of Engineering University 17 August 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/jcets.v3i2.2364

Abstract

Noise in educational environments can affect the effectiveness of teaching and learning processes. This study aims to analyze the impact of traffic noise on teaching and learning activities in Building V of Semarang University, located along the Soekarno-Hatta arterial road. The research method uses a qualitative descriptive approach by measuring noise levels using a Sound Level Meter on six floors of the building. Measurements were taken during active lecture hours with time intervals of 3 x 30 minutes. The results showed that noise levels on floors 1 to 3 were above the educational environment quality standard of 55 dB according to KepMenLH No. 48 of 1996. Meanwhile, on the 6th floor, the noise level averaged around 55 dB. Excessive noise makes it difficult for students to hear lecturers' explanations, reduces their ability to capture information, and decreases learning material retention. To address these issues, sound insulation installation, spatial planning improvements by designing room layouts farther from noise sources, vegetation planting, and lecture rescheduling to avoid peak traffic times are necessary.
Analisis Kebisingan Lalu Lintas dan Generator Set Kampus Universitas Semarang Fahrudin Ahmad; Roni Kartika Pramuyanti; Kukuh Wisnuaji Widiatmoko
Jurnal Teknik Sipil Vol. 17 No. 2 (2024): Desember 2024
Publisher : Faculty Of Engineering University 17 August 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/jts.v17i2.2363

Abstract

This study analyzes noise levels caused by traffic activities and generator sets (genset) in the Semarang University environment. Measurements were conducted using descriptive analytical methods by comparing measurement results against noise quality standards according to KepmenLH No.48 of 1996. Data collection was carried out in November 2023 at three location points (in front of Building V, Sports Center, and USM gate) during morning (08.00-08.30), afternoon (12.30-13.00), and evening (17.30-18.00) on weekdays and weekends. Measurement results showed traffic noise levels on weekdays reached 88.3 dB in front of the Sports Center, 85.3 dB at Building V, and 82.1 dB at the USM gate. On weekends, the highest noise level reached 82 dB. Generator noise measurements in stationary conditions reached 108.4 dB and increased to 112.4 dB during loading. The highest vehicle volume occurred during weekday evenings, reaching 3,176 vehicles/hour. Research results indicate that noise levels in the campus environment are above the permitted threshold of 55 dB for educational areas. The study recommends the construction of noise barriers and evaluation of generator placement to reduce noise impact on campus activities.
Implementasi Pembuatan Video Multimedia Untuk Siswa SMK Walisongo Semarang Ardina, Elfira Nureza; Erlinasari, Erlinasari; Pramuyanti, Roni Kartika; Cahyono, Taufiq Dwi
Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 8, No 4 (2025): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/japhb.v8i4.9259

Abstract

Perkembangan teknologi multimedia saat ini semakin pesat, terutama dalam bidang pembuatan video digital. Para siswa SMK sering kali menghadapi sejumlah kendala dalam pengembangan keterampilan multimedia, seperti: keterbatasan pengetahuan tentang teknik editing video, minimnya akses pelatihan praktis pembuatan konten multimedia, kurangnya pemahaman penggunaan software editing video sederhana, terbatasnya fasilitas dan pendampingan teknis dalam pembuatan video. Kegiatan pengabdian masyarakat ini fokus pada implementasi pelatihan pembuatan video multimedia menggunakan Windows Movie Maker untuk para siswa SMK Walisongo Semarang. Oleh karena itu dilakukan pengabdian kepada masyarakat untuk diadakannya pelaksanaan kegiatan untuk implementasi pembuatan video multimedia bagi siswa di SMK Walisongo Semarang. Tujuan dari pengabdian kepada masyarakat adalah memperkenalkan cara membuat video dengan Windows Movie Maker, meningkatkan keterampilan siswa dalam pembuatan video multimedia, memberikan pemahaman secara luas tentang penggunaan Windows Movie Maker, mengembangkan kreativitas siswa dalam produksi konten digital, menambah ilmu untuk para siswa di bidang multimedia. Dari kegiatan pengabdian yang diadakan di SMK Walisongo Semarang diharapkan memiliki hasil seperti siswa terlatih menggunakan Windows Movie Maker dalam pembuatan video multimedia, peningkatan pemahaman teoritis dan praktis editing video, tersedianya modul panduan yang dapat digunakan berkelanjutan.
Studi Analisis Efisiensi Dan Unjuk Kerja Baterai Pada Sistem Panel Surya Hybrid OFF-GRID Didan Prakosa; Ari Endang Jayati; Roni Kartika Pramuyanti
JURNAL TEKNIK ELEKTRO Vol. 15 No. 2 (2026): MEI 2026
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jte.v15n2.p128-139

Abstract

Sistem panel surya hybrid off-grid merupakan solusi penyediaan energi listrik yang memanfaatkan sumber energi terbarukan secara mandiri tanpa ketergantungan penuh pada jaringan PLN. Dalam sistem ini, baterai memiliki peran penting sebagai media penyimpanan energi listrik dari panel surya yang digunakan saat intensitas matahari rendah atau pada malam hari. Penelitian ini bertujuan untuk menganalisis efisiensi dan unjuk kerja baterai pada sistem panel surya hybrid off-grid dengan mempertimbangkan variasi beban, kapasitas penyimpanan energi, serta tingkat kedalaman pengosongan baterai (Depth of Discharge/DOD). Hasil analisis menunjukkan bahwa efisiensi baterai dipengaruhi oleh besarnya arus pengisian, suhu operasi, serta nilai DOD yang digunakan. Semakin tinggi DOD menyebabkan efisiensi energi menurun dan mempercepat penurunan umur baterai. Hasil penelitian ini menunjukkan bahwa efisiensi sistem panel surya hybrid off-grid dapat ditingkatkan dengan pemilihan kapasitas baterai yang sesuai dengan kebutuhan beban, pengaturan DOD yang optimal, dan penerapan sistem kontrol yang baik antara panel surya, inverter, serta baterai. Hasil studi ini diharapkan menjadi acuan dalam pengembangan sistem energi terbarukan yang efisien, handal, dan berkelanjutan.
Implementasi Fuzzy C Mean Clustering Menggunakan Segmentasi Warna pada Mata Tua (Presbyopia) Muhammad Sipan; Roni Kartika Pramuyanti
Elektrika Vol. 15 No. 2 (2023): October 2023
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v15i2.7976

Abstract

The eye is an organ that is very important for activities and is a window to the world because it has the function of seeing. The eye as an organ can survive damage for a long time. The structure of a healthy person's eye organ, especially at a young age, is smooth and flexible. This is because the eye lens can adjust its shape to see objects clearly at a certain distance and lighting. If this ability is lost, an eye disorder occurs known as presbyopia or old eyes. Based on this problem, the research discusses color segmentation in old eyes using the Fuzzy C mean cluster method. This method works by partitioning data based on the distance between the input data and the nearest cluster center. The cluster center is always updated repeatedly until an optimal cluster division is obtained. Recurrence is based on minimizing the objective function. The aim of the research carried out was to separate objects in the image of the old eye, which could later be used as a reference to determine the conditions, symptoms or diseases of the old eye. From the results of the tests carried out, separate front ground and background images can provide a clearer picture of what objects are in the old eye (Presbyopia). The first cluster is on the x = 0 to x = 0.5 axis with the cluster center indicated and the y axis = 0 to 0.8. what is the second clustering at coordinates x = 0.5 to x=1.0 and axis y=0 to y=0.8. with X1 at (0,0) and X2 at (0.8, 0.45). Keywords: Cluster, Fuzzy C Mean, Eyes, Presbyopia, Segmentation. ABSTRAK  Mata adalah organ yang sangat penting untuk beraktivitas merupakan jendela dunia karena memiliki fungsi untuk melihat. Mata sebagai organ dapat bertahan dalam waktu yang lama dari kerusakan. Struktur organ mata orang yang sehat, khususnya saat usia muda bersifat halus dan fleksibel. Hal ini dikarenakan lensa mata bisa menyesuaikan bentuknya untuk melihat objek dengan jelas dalam jarak dan pencahayaan tertentu. Jika kemampuan itu hilang, maka terjadi gangguan mata yang dikenal dengan istilah presbyopia atau mata tua. Dari permasalahan tersebut penelitian membahas tentang segmentasi warna pada mata tua dengan menggunakan metode Fuzzy C mean cluster. Metode ini bekerja dengan mempartisi data berdasarkan pada jarak antara data masukan dengan pusat kluster terdekat. Pada pusat cluster selalu diupdate berulang-ulang sampai didapatkan pembagian kluster yang optimal. Perulangan didasarkan pada minimalisasi fungsi objektif. Tujuan penelitian yang dilakukan adalah memisahkan objek yang ada di citra mata tua, yang nantinya dapat di jadikan acuan untuk mengetahui kondisi, gejala atau penyakit yang ada pada mata tua tersebut. Dari hasil pengujian yang dilakukan dihasilkan, gambaran citra front ground dan background yang terpisah dapat memberikan gambaran lebih jelas objek apa saja yang ada pada mata tua (Presbyopia). Kluster pertama pada sumbu x = 0 sampai x = 0.5 dengan pusat kluster yang ditunjukkan dan sumbu y =0 sampai 0.8. klustering kedua berapa pada koordinat x = 0.5 sampai x=1.0 dan sumbu y=0 sampai y=0.8. dengan X1 pada (0,0) dan X2 pada (0.8, 0.45).           
Implementasi Penerangan Jalan Umum Berbasis Solar Cell untuk Peningkatan Keamanan Lingkungan di Widoro I Kelurahan Sembungharjo Genuk Kota Semarang Fahrudin Ahmad; Roni Kartika Pramuyanti; Taufiq Dwi Cahyono
Jurnal Pengabdian KOLABORATIF Vol. 4 No. 1 (2026): January
Publisher : Faculty of Engineering, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/kolaboratif.v4i1.13255

Abstract

The lack of adequate lighting in Widoro I – Perbalan 3 increases security risks and limits community activities at night. This program provides an independent and sustainable street-lighting solution through the installation of a 1500 W portable solar-powered street lighting (PJU) system. The implementation method integrates the diffusion of appropriate technology, training, and the ABCD approach to ensure technical sustainability and community involvement. The activities include a needs survey, technical planning, installation, socialization, and monitoring. The results indicate an increase in illuminance from 2–3 lux to 25–30 lux, a panel efficiency of 21%, and the availability of backup power for up to three days. The motion sensor system has been proven to improve energy efficiency and expand lighting coverage. Socially, the program increases nighttime activities by 65% and enhances perceptions of environmental safety. This program demonstrates that the application of portable solar-powered street lighting can serve as an effective, efficient, and replicable appropriate-technology model for residential areas with limited access to energy. These findings emphasize the importance of synergy between renewable energy technology and community empowerment to achieve local energy independence.
Co-Authors Ardina, Elfira Nureza Ari Endang Jayati Didan Prakosa Elfira Nureza Ardina Elfira Nureza Ardina Erlinasari Erlinasari Erlinasari, Erlinasari Fahrudin Ahmad Kukuh Wisnuaji Widiatmoko Muhammad Sipan Taufiq Dwi Cahyono