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All Journal TELE, Journal of Applied Communication and Information Technologies JOIV : International Journal on Informatics Visualization Journal of Applied Information, Communication and Technology (JAICT) TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol JTEIN: Jurnal Teknik Elektro Indonesia Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Journal of Railway Transportation and Technology
Amin Suharjono
Electrical Engineering Dept., Institut Teknologi Sepuluh Nopember (ITS) Surabaya 60111, Indonesia Electrical Engineering Dept., Politeknik Negeri Semarang (POLINES) Semarang 50275, Indonesia
Arts Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Aplikasi Sensor Flow Water Untuk Mengukur Penggunaan Air Pelanggan Secara Digital Serta Pengiriman Data Secara Otomatis Pada PDAM Kota Semarang Suharjono, Amin; Rahayu, Listya Nurina; Afwah, Roudlotul
TELE, Journal of Applied Communication and Information Technologies Vol 13, No 1 (2015)
Publisher : Politeknik Negeri Semarang

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

Abstract

PDAM merupakan perusahaan daerah yang memberikan jasa penyediaan air kepada pelanggan yang membutuhkan. PDAM menyalurkan air ke pelanggan melalui pipa reservoir. PDAM mengecek jumlah penggunaan air pada masing-masing pelanggan setiap bulan dengan mengirimkan petugas ke rumah pelanggan untuk mengecek dan mencatat jumlah penggunaan air melalui meter air. Meter air yang digunakan PDAM masih bersifat analog sehingga pelanggan mengalami kesulitan dalam pembacaan jumlah penggunaan air. Karena cara pengecekan yang masih bersifat manual dan alat yang masih bersifat analog, maka di rancanglah suatu alat yang dapat mengukur penggunaan air secara digital serta dapat mengirimkan data jumlah penggunaan air secara otomatis ke PDAM. Sehingga PDAM dan pelanggan akan lebih mudah mengecek jumlah penggunaan air setiap bulan. Alat ini dirancang menggunakan sensor flow water yang akan mengukur debit air yang mengalir ke pipa reservoir pelanggan dan hasil pengukuran akan diolah oleh mikrokontroller AVR Atmega 8535. Data akan diolah dan ditampilkan pada LCD serta di transmisikan ke PDAM melalui modem GSM. PDAM dan pelanggan dapat mengakses data ini melalui website yang telah disediakan. 
Rancang Bangun Peta Digital Desa di Kaligentong Boyolali Berbasis Web dan Android Rochmatika, Rizkha Ajeng; Sasono, Sindung Hadwi Widi; Suharjono, Amin; Supriyanto, Eko; Novitasari Mara, Muhlasah; Rochadi, Agus; Hidayah, Nurul; Rohmah, Nuriyana
Jurnal Teknik Elektro Indonesia Vol 5 No 1 (2024): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v5i2.609

Abstract

To support the management of large-scale area potential such as rural spatial planning, Kaligentong Village uses area mapping as an effort in village development planning. The mapping is displayed in paper media which has limited access so that this is inefficient and hinders the Kaligentong Village government in managing the assets and potential contained in it. Therefore, an information system is needed that can monitor the assets and potential of Kaligentong Village in the form of web-based digital maps and android. This study aims to create a dynamic digital mapping of villages for Kaligentong Village so that it is more efficient in finding and managing information related to geographical conditions and potential of Kaligentong Village. The method used is waterfall which consists of the stages of analysis, planning, modeling, construction, and testing. The system is built using javascript leaflets, native PHP, QGIS, and MySQL databases. Based on data from black box testing, the village digital map application runs according to the functional system. The satisfaction rate of application and web users is 94.10%. The average response time per activity generated by the application was 1.44s at 96 Mbps bandwidth and 0.89s at 144 Mbps bandwidth for websites.
A Low-Cost Nursing Robot with Telemedicine using ESP32 and Robot Operating System-based Suharjono, Amin; Apriantoro, Roni; Supriyo, Bambang; Wardihani, Eni Dwi; Yunanto, Bagus; Hidayat, Wahyu; Prasetio, Katon; Reynaldi, Rindang; Fahrul Aji, Achmad
JOIV : International Journal on Informatics Visualization Vol 9, No 2 (2025)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.9.2.2793

Abstract

The COVID-19 pandemic has presented unprecedented challenges to the healthcare sector, particularly frontline healthcare workers. These professionals face high infection risks and physical and mental exhaustion due to intensified workloads and staffing shortages. Robots are seen as a potential solution to this predicament, performing tasks such as delivering supplies and monitoring patients. However, widespread adoption of such robots, particularly in resource-constrained settings, has been hampered by the exorbitant costs associated with their acquisition and maintenance. To address this problem, the authors developed a low-cost nursing robot based on the ESP32 and the Robot Operating System (ROS). This robot facilitates hospital logistics and patient monitoring through telemedicine. The robot is controlled by remote control or Wi-Fi connection through the RViz Graphical User Interface (GUI) and uses odometry and PID control methods to follow specified paths autonomously. Accessible via local area networks and the Internet, the telemedicine system demonstrates robust performance with minimal X and Y axis control errors, zero packet loss, an average Round Trip Delay (RTD) of less than 150 ms, and jitter values of less than 20 ms, in line with TIPHON standards. This innovation provides a cost-effective solution to support healthcare workers during the ongoing health crisis. In future development, incorporating LiDAR, computer vision, and AI-based decision-making into the robot can facilitate obstacle detection and real-time decision-making to enable fully autonomous movement. These advancements will enhance the robot’s adaptability and accuracy in navigation and positioning.
Pemberdayaan Lingkungan Desa dalam Upaya Meningkatkan Ekonomi di Desa Kesongo, Kabupaten Tuntang, Jawa Tengah adhi, nurseto; Rikawati; Rabinah, Aiun; Rizal, Aminuddin; Suharjono, Amin
JDISTIRA - Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Vol. 4 No. 2 (2024)
Publisher : Yayasan Rahmatan Fidunya Wal Akhirah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58794/jdt.v4i2.1078

Abstract

Desa Kesongo, adalah salah satu desa yang terletak di kecamatan Tuntang, kabupaten Semarang dengan luas wilayah 965,535 dengan kondisi geografis Desa Kesongo yang memiliki potensi untuk dikembangkan menjadi desa wisata. Desa Kesongo di Kabupaten Semarang memiliki potensi besar untuk pengembangan ekonomi melalui pariwisata dan usaha mikro, namun masih menghadapi berbagai kendala. Pengabdian ini bertujuan untuk mendukung produktivitas Desa Kesongo melalui tiga program utama: penambahan fasilitas wisata camping (glamping) di Taman Wisata Kuliner Daringan, pengadaan alat pengering eceng gondok untuk mendukung UMKM Bengok Craft, dan penyediaan alat pencacah sampah plastik untuk meningkatkan nilai jual sampah anorganik di TPS3R. Hasil program menunjukkan peningkatan produktivitas desa. Alat pencacah sampah meningkatkan harga jual plastik dari Rp 4.000/kg menjadi Rp 9.000/kg, alat pengering eceng gondok mempersingkat waktu pengeringan dari 2–3 minggu menjadi 1 minggu, dan fasilitas glamping menambah daya tarik wisata dengan paket penginapan dan edukasi. Kendala pada implementasi meliputi renovasi lokasi wisata akibat kerusakan sebelumnya. Program lanjutan akan meliputi alat produksi briket dan biomassa untuk mendukung keberlanjutan energi dan limbah. Upaya ini mendukung Desa Kesongo dalam menuju konsep zero waste dan meningkatkan kesejahteraan ekonomi masyarakat.
Performance Evaluation of RESTful Services and AMQP Protocol in Cashless Parking Payment Mobile Apps Farrabi, Dimas Rizky; Suharjono, Amin; Apriantoro, Roni
JOIV : International Journal on Informatics Visualization Vol 9, No 4 (2025)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.9.4.2798

Abstract

This study explores the challenges surrounding the inefficient use of e-parking applications in Semarang, Indonesia, where issues such as illegal parking and an underperforming digital infrastructure have resulted in lost regional revenue from parking fees. The lack of a robust, user-friendly system has hindered user adoption and limited the application’s effectiveness in managing urban parking. To address these concerns, we developed a modernized e-parking application focused on enhancing usability and system performance. The application design prioritizes intuitive user interaction and seamless integration with existing parking infrastructure. Usability testing using the System Usability Scale (SUS) yielded a score of 80, indicating a high level of user satisfaction and ease of use. In addition, we conducted a comparative analysis of two communication protocols—RESTful and Advanced Message Queuing Protocol (AMQP)—during key application processes, such as vehicle check-in and check-out transactions. Results revealed that AMQP significantly outperformed RESTful in terms of Quality of Service (QoS), particularly with lower response times and minimal packet loss. AMQP consistently met TIPHON standards, achieving a QoS index score of 4, further supporting its suitability for real-time transaction systems in urban environments. This study highlights the critical role of technology optimization in addressing urban mobility issues, reducing illegal parking, and improving public service efficiency. Looking ahead, future development should focus on refining secondary features and introducing new capabilities such as reservation systems, dynamic pricing, and real-time availability tracking to further enhance user engagement and operational effectiveness. The findings emphasize the potential of well-designed e-parking systems to transform urban parking management through smart, scalable technology.
Predicting Battery Storage of Residential PV Using Long Short-Term Memory Rakasiwi, Rizky Khaerul Maulana; Kurnianingsih, Kurnianingsih; Suharjono, Amin; Enriko, I Ketut Agung; Kubota, Naoyuki
JOIV : International Journal on Informatics Visualization Vol 8, No 1 (2024)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.8.1.1603

Abstract

Solar power panels, or photovoltaic (PV), have recently grown rapidly as a renewable alternative energy source, especially since the increase in the basic electricity tariff. PV technology can be employed instead of the state electricity company to reduce the electricity used. Indonesia is one of the countries that have great potential in producing electricity from PV technology, considering that most of Indonesia's territory gets sunlight for most of the year and has a large land area. Considering the benefits of PV technology, it is necessary to carry out predictive monitoring and analysis of the energy generated by PV technology to maximize energy utilization in the future. The Internet of Things (IoT) and cloud computing system was developed in this research to monitor and collect data in real-time within 27 days and obtained 7831 data for each parameter that affects PV production. These data include data on the light intensity, temperature, and humidity at the location where the PV system is installed. The feature selection results using Pearson correlation revealed that the light intensity parameter significantly impacted the PV production system. This research used the Long Short-Term Memory (LSTM) method to predict future PV production. By tuning hyperparameters using 3000 epochs, the resulting RMSE value was 171.5720. The results indicated a significant change in the RMSE value compared to 100 epochs of 422.5780. This model can be applied as a forecasting system model at electric vehicle charging stations, given the increasing use of electric vehicles in the future.     Keywords— Forecasting; energy; Photovoltaic; LSTM; Internet of Thing. 
Optimisation of Energy Consumption Balance in Multi-Hop Topology Wireless Sensor Networks for Environmental Monitoring Systems along Railway Tracks Suharjono, Amin; Sadewa, Eskandaru Erin
JAICT Vol. 11 No. 02 (2025): JAICT
Publisher : Politeknik Negeri Semarang

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Abstract

The implementation of IoT requires careful planning so that the system can function optimally. This study describes the planning of WSN development as a network in an IoT system with a long, straight topology, such as that found on railway tracks. The planning includes the use of appropriate technology with minimal power consumption. Three simulation scenarios were conducted using LPSAN, LPWAN, and a combination of both to compare their performance on a straight-line topology. The profile of each technology in LPSAN and LPWAN in terms of their performance in transmitting sensor data in the IoT system will be determined. The network lifetime performance is also determined to demonstrate the energy efficiency of each technology. Thus, the most optimal scenario in terms of configuration and topology in a straight-line network will be selected. From the experiments conducted, it is concluded that multihop topology is generally recommended for use in straight-line networks compared to star topology, except in conditions where nodes are very close to the gateway
Analisis Kebutuhan dan Prediksi Parkir menggunakan Metode Regresi Linier Lady, Rienisti Ellen; Suharjono, Amin; Hidayat, Sidiq Syamsul
TELKA - Telekomunikasi Elektronika Komputasi dan Kontrol Vol 11, No 3 (2025): TELKA
Publisher : Jurusan Teknik Elektro UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/telka.v11n3.389-398

Abstract

Kebutuhan fasilitas parkir rumah sakit merupakan bagian penting mengingat fasilitas parkir merupakan bagian yang tak bisa dipisahkan dari sistem transportasi. Selain itu, bagi suatu rumah sakit, kebutuhan tempat parkir akan selalu meningkat seiring dengan perkembangan fasilitas layanan kesehatan yang ada di rumah sakit tersebut. Penelitian  ini bertujuan untuk menentukan kebutuhan lahan parkir melalui nilai Indeks Parkir dan prediksi jumlah kendaraan parkir di RS Mardi Rahayu, Kudus. Metode perhitungan Indeks Parkir dilakukan dengan perhitungan volume parkir, durasi parkir, angka pergantian parkir dan prediksi jumlah kendaraan menggunakan metode Regresi Linier. Pengambilan data dilakukan pada bulan Januari-Maret 2023. Hasil penelitian menunjukkan secara umum volume maksimal kendaraan, baik motor maupun mobil, terjadi pada hari Selasa hingga Kamis antara minggu pertama hingga minggu ketiga setiap bulan. Berdasarkan hasil analisis angka pergantian parkir dan indeks parkir, petak parkir yang ada saat penelitian ini dilakukan tidak cukup untuk melayani volume kendaraan para pengunjung karena memiliki nilai Indeks Parkir lebih dari 100%. Hasil analisis regresi linier mendapati bahwa kendaraan terbanyak diprediksi setelah 120 menit dan lonjakan kendaraan diprediksi terjadi pada menit ke 30. Penelitian ini merekomendasikan penambahan petak parkir kendaraan motor sejumlah 13 petak dan untuk kendaraan mobil 5 petak. Alternatif lain selain penambahan petak dapat dilakukan dengan memperluas lahan parkir. Hospital parking facilities are crucial, as parking is an integral part of the transportation system. Furthermore, the need for parking spaces for hospitals continues to increase along with the development of healthcare facilities. This study aims to determine parking space requirements through the Parking Index value and predict the number of parked vehicles at Mardi Rahayu Hospital, Kudus. The Parking Index calculation method involves calculating parking volume, parking duration, parking turnover rate, and predicting the number of vehicles using the Linear Regression method. Data collection was conducted between January and March 2023. The results indicate that the maximum vehicle volume, both motorcycles and cars, generally occurs on Tuesdays through Thursdays between the first and third weeks of each month. Based on the analysis of parking turnover rates and the parking index, the existing parking spaces at the time of this study were insufficient to accommodate the volume of visitors, as the Parking Index value exceeded 100%. The linear regression analysis found that the highest number of vehicles was predicted to arrive after 120 minutes, with a predicted surge in traffic occurring at the 30th minute. This study recommends adding 13 parking spaces for motorcycles and 5 parking spaces for cars. Another alternative besides adding plots is to expand the parking area.
Feasibility Evaluation of a Microcontroller-Based SCADA Prototype as an Operational Traction Substation Monitoring System Pradipta, Andri; Suharjono, Amin; Triwijaya, Santi; Sunardi; Akhwan; Arifianto, Teguh; Rozaq, Fadli
Journal of Railway Transportation and Technology Vol. 5 No. 1 (2026): March
Publisher : Politeknik Perkeretaapian Indonesia Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37367/jrtt.v5i1.95

Abstract

This study evaluates the feasibility of a microcontroller-based Supervisory Control and Data Acquisition (SCADA) prototype for railway traction substation monitoring. A quantitative evaluative approach is employed using experimental data, focusing on reliability, response time, accuracy, and communication performance. The system integrates Arduino-based controllers, electrical sensors, TCP/IP communication, and a computer-based Human Machine Interface (HMI). Results show that the system achieves an operational success rate above 90% with an average response time below 2 seconds, indicating adequate performance for basic monitoring and control functions. However, compared to industrial SCADA standards, the system exhibits limitations in reliability, security, and scalability. Therefore, the prototype is classified as having limited feasibility, suitable for educational and simulation purposes but not for direct operational deployment. This study provides a structured evaluation framework and highlights key gaps for future development of more robust SCADA systems. This study contributes by introducing a quantitative feasibility evaluation framework for low-cost SCADA systems in railway applications.
Co-Authors Adhi, Nurseto Agus Rochadi, Agus Akhwan Aminuddin Rizal, Aminuddin Apriantoro, Roni Bagus Yunanto Bambang Supriyo, Bambang Eko Supriyanto Eni Dwi Wardihani, Eni Dwi Fahrul Aji, Achmad Farrabi, Dimas Rizky I Ketut Agung Enriko Kubota, Naoyuki Kurnianingsih Kurnianingsih, Kurnianingsih Lady, Rienisti Ellen Listya Nurina Rahayu, Listya Nurina Novitasari Mara, Muhlasah NURUL HIDAYAH Pradipta, Andri Prasetio, Katon Rabinah, Aiun Rakasiwi, Rizky Khaerul Maulana Reynaldi, Rindang Rikawati Rochmatika, Rizkha Ajeng Rohmah, Nuriyana Roudlotul Afwah, Roudlotul Rozaq, Fadli Sadewa, Eskandaru Erin Sidiq Syamsul Hidayat, Sidiq Syamsul Sindung Hadwi Widi Sasono, Sindung Hadwi Widi Sunardi TEGUH ARIFIANTO, TEGUH Triwijaya, Santi Wahyu Hidayat