Article Per Year (5 Year)
p-Index From 2021 - 2026
1.561
P-Index
This Author published in this journals
All Journal Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Nasional Pendidikan Teknik Informatika (JANAPATI) Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Jurnal Jaring SainTek
Rifki Muhendra
Universitas Bhayangkara Jakarta Raya
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Public Health Other

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
Jaringan Sensor Nirkabel: Studi dan Evaluasi Kinerja LoRa Transmitter dan Long Range Radio Frekuensi (RF) Pada Luar Ruang Rifki Muhendra; Naufal Ismail Kreshnaviyanto; Aisyah Amin
Jurnal Jaring SainTek Vol. 3 No. 1 (2021): April 2021
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/jaring-saintek.v3i1.347

Abstract

Transmitters are the backbone of communication on wireless sensor networks. Most transmitters use ism band frequencies so the communication range is limited to 100 m. Some types of transmitters that have long-distance communication capabilities are nRF24 1 km and LoRa. The paper reports a comparative study between nRF24 1 km and LoRa in data communication, power consumption and resistance to obstacles. The results showed that LoRa has a range capability of 1.6 km and nRF24 has a delivery capability of 1 km. The 1 km NRF24 is more suitable for long-distance communication that requires high speed and is also resistant to non-line of sight obstacles.
Optimalisasi Media Ajar dalam Pengajaran Berbasis Digital di SD Negeri Muktiwari 01 Ferawaty Puspitorini; Haris Hamdani; Muhammad Zulfadhli; Rifki Muhendra; Arie Purwa Kusuma
Jurnal Komunitas : Jurnal Pengabdian kepada Masyarakat Vol 5, No 1: Juli 2022
Publisher : Institut Ilmu Sosial dan Manajemen Stiami

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (734.88 KB) | DOI: 10.31334/jks.v5i1.2364

Abstract

Pesatnya kemajuan dunia di bidang Teknologi Informasi (IT) terus berkembang seiring dengan berjalannya waktu. Seiring dengan berkembangnya teknologi dan  ilmu pengetahuan, saat ini media pembelajaran yang sering digunakan adalah media pembelajaran berbasis komputer. Terdapat istilah baru dari kemunculan perkembangan tersebut yaitu media berbasis komputer, yaitu multimedia pembelajaran interaktif. Interaktif berarti terdapat hubungan timbal balik antara media dan pengguna media. Permasalahan yang dihadapi oleh mitra adalah minimnya pengetahuan para guru dalam menciptakan atau mengembangkan media pembelajaran. Hal yang dikeluhkan oleh para guru yaitu keterbatasan media pembelajaran yang mengakibatkan guru cenderung melaksanakan pembelajaran di kelas dengan cara konvensional dan seringnya tanpa media. Oleh karena itu, tim pelaksana mencoba untuk memberikan pelatihan pembuatan Media Ajar Digital sebagai media pembelajaran bahasa Inggris, bahasa Indonesia, Matematika, dan IPA. Bagi guru SDN Muktiwari 01, dengan adanya pelatihan ini diharapkan para guru dapat menguasai pembuatan Media Ajar Digital dan pengisian konten yang positif terkait dengan pendidikan sehingga Media Ajar Digital dapat dibentuk sebagai media untuk aktualisasi diri. Pelaksanaan pengabdian kepada masyarakat dilaksanakan dalam bentuk sosialisasi, Pengenalan, pelatihan, dan praktik penerapan Media Ajar dalam Pengajaran Berbasis Digital kepada guru-guru di SDN Muktiwari 01. Berdasarkan dari hasil pengabdian kepada masyarakat, para guru sangat antusias dalam mengikuti kegiatan pengabdian kepada masyarakat. Para guru sangat senang dengan hasil yang sudah dilaksanakan karena mereka langsung mempraktikkan teori yang sudah disampaikan di hari sebelumnya.
Development of Non-Intrusive Low-Power Digital Water Meter Reading System Based On Wireless Mesh Network and Internet of Things Rifki Muhendra
Jurnal Nasional Pendidikan Teknik Informatika : JANAPATI Vol. 12 No. 1 (2023)
Publisher : Prodi Pendidikan Teknik Informatika Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/janapati.v12i1.57180

Abstract

The application of WMN and IoT technology to the metering infrastructure is proven to provide convenience in data collection, access to information, and management of metering devices. Unfortunately, the use of this technology is still minimal in developing countries like Indonesia. In this study, the development of a digital meter reading system that focuses on low-power non-intrusive reading devices and the application of WMS in the water meter reading system is carried out. This system consists of a series of meter reader sensors that are connected mesh to a gateway where meter data can be monitored in real-time and remotely. This sensor circuit is an integrated circuit added to the existing mechanical water meter which allows recording the volume of water consumption digitally. This circuit consists of an optical sensor, real-time clock (RTC), microcontroller, Lora Transmitter, and power supply. The use of solar cells to supply energy for meter reading devices is another interesting aspect of the development of this system. A gateway is a circuit built to bridge the transmission of meter data from a radio-based sensor network to the internet. The result of this research is the establishment of a meter reading system capable of accurately reading water consumption, low power where the meter data is easily accessible using a device connected to the internet. This system has been evaluated for every part of development such as reading water consumption, power consumption, and also communication in the mesh network. The contribution of this research is that it can be used as a reference for developing a digital meter system that is more effective, has low power, and has easy access to meter data
Optimasi Line Balancing PCB Televisi LCD dengan Lean Manufacturing dan RPW Solihin Solihin; Rifki Muhendra; Murwan Widyantoro; Al Munawir Al Munawir
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 12, No 1 (2026): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v12i1.15073

Abstract

The electronics manufacturing industry, particularly in Printed Circuit Board (PCB) assembly for LCD televisions, requires highly efficient production systems to meet output targets and improve labor productivity. One of the critical issues frequently encountered is assembly line imbalance, characterized by bottlenecks, idle time, and uneven workload distribution across workstations. This study aims to optimize line balancing in the PCB production line of LCD TV Model P14xx by integrating the Ranked Positional Weight (RPW) method with a Lean Manufacturing approach. The research begins with an initial condition analysis to evaluate line efficiency, balance delay, and bottleneck locations. Subsequently, Lean Manufacturing tools are applied to identify and eliminate non-value-added activities (waste) within the production process. The RPW method is then implemented to optimize task allocation based on positional weights while considering precedence constraints. The results demonstrate that the integrated approach significantly improves production system performance. Line efficiency increases from 69% to 82%, while balance delay decreases from 31% to 18%. Additionally, the number of workstations is reduced from 15 to 10, and labor productivity improves from 10.5 to 15.4 units per operator.
Analysing creativity, teamwork, and concept understanding on improving learning outcomes in project based learning methods Rifki Muhendra
Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi Vol. 13 No. 2 (2025): December
Publisher : Graduate School, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jppfa.v13i2.82153

Abstract

Higher education faces challenges in improving student learning outcomes, especially in complex concept-based courses such as physics. This study aims to analyse the effect of Project-Based Learning (PBL) method on students' creativity, teamwork, and concept understanding in Basic Physics course. The research method used was an explanatory quantitative design, involving 120 students who were divided into groups to develop a scientific magazine. Data were collected through assessment of the magazines produced and questionnaires measuring the main variables. The results showed that PBL significantly improved students' concept understanding and creativity, although the direct effect of creativity on learning outcomes was not significant. This research contributes to the understanding of the importance of integrating creativity and concept understanding in physics education. The practical implications of this study suggest that the implementation of PBL can enrich students' learning experiences, prepare them for future professional challenges, and encourage the development of important skills such as critical thinking and collaboration. Therefore, it is recommended that higher education institutions adopt PBL as an effective teaching method.
Enhancing energy efficiency in wireless mesh networks through time-synchronized sleep scheduling and low-power hardware Rifki Muhendra; Dede Rukmayadi; Solihin Solihin
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 24, No 3: June 2026
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v24i3.27616

Abstract

Energy efficiency remains a critical challenge in wireless mesh networks (WMNs), particularly for internet of things (IoT) deployments with battery powered nodes and multihop communication. This paper proposes a time synchronized sleep scheduling framework that integrates a lightweight regression-based time synchronization model with low-power hardware to reduce energy consumption in long range (LoRa)-based WMNs. The proposed mechanism aligns local node clocks with a global reference using slope and offset correction, enabling synchronized active and sleep states across nodes. This coordination significantly reduces idle listening and unnecessary radio-on time. The proposed approach is validated through real world experiments on a multihop LoRa mesh testbed with up to three hops. Results show a substantial improvement in energy efficiency, reducing cumulative energy consumption from 125.31 mWh to 28.18 mWh over 10 hours (77.5% reduction). The sleep-mode current is reduced to 0.01 mA, demonstrating effective duty cycling. Furthermore, the approach maintains stable routing, bounded latency, and high packet delivery ratio (PDR). These findings confirm that accurate time synchronization is a key enabler for energy-efficient and reliable multihop communication, providing a practical solution to extend the operational lifetime of IoT-based WMNs.
Perbaikan Kualitas Cetakan Poros Kam (Camshaft ) Menggunakan FMEA dan 2 Sample T test Solihin Solihin; Rifki Muhendra; Murwan Widyantoro; Rifda Ilahy Rosihan
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 2 (2025): Oktober
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i2.13580

Abstract

Penelitian ini bertujuan untuk menganalisis dan menurunkan tingkat kecacatan pada proses pembuatan cetakan camshaft melalui pendekatan terintegrasi antara Failure Mode and Effect Analysis (FMEA) dan 2-Sample T-test. Latar belakang penelitian ini berangkat dari tingginya rasio cacat total sebesar 1,00%,  melebihi target perusahaan sebesar 0,5%. Analisis kualitatif diawali dengan Fishbone diagram untuk mengidentifikasi akar penyebab cacat, yang kemudian divalidasi menggunakan FMEA. Hasil analisis FMEA menunjukkan empat mode kegagalan utama dengan nilai Risk Priority Number (RPN) tertinggi, yaitu operator tidak memahami instruksi, pola cetakan berkarat, pola cetakan kotor, serta instruksi kerja yang tidak jelas. Rekomendasi perbaikan difokuskan pada revisi instruksi kerja, penerapan prosedur pembersihan pola cetakan, dan pelatihan operator. Selanjutnya, uji 2-Sample T-Test digunakan untuk mengevaluasi efektivitas perbaikan dengan membandingkan data sebelum dan sesudah intervensi. Uji normalitas menggunakan Ryan-Joiner (Shapiro-Wilk) memastikan validitas uji parametrik. Hasil pengujian menunjukkan adanya perbedaan signifikan dengan nilai p < 0,05, dimana total rasio kecacatan cetakan poros kam menurun dari 1,00% menjadi 0,51%. Penelitian ini menyimpulkan bahwa kombinasi metode FMEA dan 2-Sample T-Test tidak hanya mampu mengidentifikasi akar penyebab dan prioritas perbaikan secara sistematis, tetapi juga memverifikasi efektivitas intervensi secara kuantitatif. Pendekatan ini dapat diadaptasi pada berbagai proses manufaktur lain guna meningkatkan kualitas produk dan daya saing industri.
Co-Authors Aisyah Amin Al Munawir Arie Purwa Kusuma Dede Rukmayadi Ferawaty Puspitorini Hamdani, Haris Muhammad Zulfadhli, Muhammad Naufal Ismail Kreshnaviyanto Rifda Ilahy Rosihan Solihin Solihin Widyantoro, Murwan