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All Journal JSM (Jurnal SIFO Mikroskil) Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JETT (Jurnal Elektro dan Telekomunikasi Terapan) VOLT : Jurnal Ilmiah Pendidikan Teknik Elektro Jurnal ULTIMA Computing Jurnal Abdimasa TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika Jurnal Teknologi Informasi dan Terapan (J-TIT) IJAIT (International Journal of Applied Information Technology) JMECS (Journal of Measurements, Electronics, Communications, and Systems) Charity : Jurnal Pengabdian Masyarakat SinarFe7 eProceedings of Applied Science eProceedings of Engineering SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan) Jurnal Informatika: Jurnal Pengembangan IT Greenation International Journal of Engineering Science Jurnal Nasional Sains dan Teknik Jurnal Elektronika dan Telekomunikasi
Denny Darlis
Telkom University
Aerospace Engineering Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Journal : jurnal ultima computing

 1 
Sistem Pemantauan Dapur Menggunakan Teknologi Hybrid WiFi - Visible Light Communication Denny Darlis; Aris Hartaman; Afifah Shafira
Ultima Computing : Jurnal Sistem Komputer Vol 13 No 1 (2021): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/sk.v13i1.2064

Abstract

Visible Light Communication (VLC) is a technology that allows the sending of data information through visible light that will be received as a piece of information. In its implementation, a sensor can send information data using VLC in this technological era. One model of data transmission that is widely used in life is to use radio frequency or better known as wireless.In this final project, a transmitter and receiver of data is realized through the transmission of light, this device consists of a lamp as an electrical converter to light, a photodioda as a converter of light to electric, and receiving data. Through the realization of this tool we can know that the transmission of data through light can occur can be used to transmit data. Data transmitted in this final project is the result of three sensor data namely temperature sensors, gas sensors, and fire detection sensors on the transmitter and on the receiver used firebase to monitor data. From the test results produce parameter values such as distance with a maximum distance of the data is accepted either 45cm, 50cm of data is damaged and 55cm of data is not accepted, the variations in angles and distances show that at a distance of 10cm it can receive data well from an angle of 0ᵒ to an angle of 35ᵒ, a distance of 35cm and 40 cm at an angle of 10ᵒ the received data is damaged and at a distance of 45cm and 50cm at a 5ᵒ angle cannot receive data and as well as the sending speed parameters obtained at a baudrate of 2400 bps, 4800 bps and 9600 bps the data sent can be received well.
Implementasi Modul Komunikasi LoRa RFM95W Pada Sistem Pemantauan Listrik 3 Fasa Berbasis IoT Ahmad Adhitya Nurhadi; Denny Darlis; Muhammad Ary Murti
Ultima Computing : Jurnal Sistem Komputer Vol 13 No 1 (2021): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/sk.v13i1.2065

Abstract

The use of electricity for large loads such as buildings and industry is a 3-phase electrical system. The manual activity of recording or monitoring data on electricity usage is considered impractical, so the use of IoT devices can be a solution. However, sending data on IoT devices using wired communication and Wi-Fi is considered less suitable considering that the device will be placed in a panel room that is rarely covered in the network. So that the use of other IoT communications such as LoRa can be an option. Therefore, the design and manufacture of LoRa-based IoT devices was carried out. This is done to expand the scope of IoT devices in carrying out 3-phase kWh meter readings. The device sends data through LoRa communication with test parameters, namely RSSI, SNR and throughput. The device made is an interface between a 3-phase kWh meter with LoRa communication which includes a MAX485 IC, ATMega 2560 microcontroller, and LoRa RFM95W communication module. From the test results, the device can send 3-phase kWh meter data every 3.611 seconds with an average throughput of 957.231 bps. LoRa communication performance used in LOS conditions can reach 300 meters with RSSI -107.625 dBm, SNR -13.063 dB. Meanwhile, in non-LOS conditions the lowest RSSI was -103.338 dBm and the lowest SNR was -8.897 dB.
Automatic Warning System for Weather Station Power Supply Mumtazanisa Fairuzen; Angga Rusdinar; Fiky Yosef Suratman; Denny Darlis
Ultima Computing : Jurnal Sistem Komputer Vol 13 No 2 (2021): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/sk.v13i2.2261

Abstract

Weather observation is one of the important factors in agriculture. Data from weather observations can be used for various things, including to predict future risks due to these weather conditions. An Automatic Weather Station (AWS) is needed to read weather conditions continuously. Some of the devices that will be built for the AWS system are data communication, sensors, and power supply. AWS is usually installed in certain areas where there is no power source. Hence, it takes a power supply system that can stand alone and has a security system that can monitor the components connected to the system in real-time. This research successfully designed a power supply system for a weather station that is equipped with current and voltage measurement features for its load as well as a warning system feature in case of interference on GSM SIM900-based Weather Station. Based on the results of the study the system using solar cell modules has an efficiency of 14,1% and is supported with the help of batteries that can be recharged through solar energy. Using the INA219 sensor to measure the voltage and load current connected to devices that have an error percentage value of less than 1%, the data is then uploaded to Thingspeak. Testing of warning systems at the Weather Station is conducted using Magnetic reed sensors capable of detecting changes when the separation distance between the sensor and other magnets is more than 3cm.
Indoor Positioning System Infrastructure Based on Triangulation Method through Visible Light Communication Apnan Juanda; Willy Anugrah Cahyadi; Angga Rusdinar; Denny Darlis
Ultima Computing : Jurnal Sistem Komputer Vol 14 No 1 (2022): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/sk.v14i1.2271

Abstract

Autonomous mobile robots are widely used in industry to help human’s work, but the concept has a weakness, that is robot still does not know its position in a room so it can not detect whether the robot has been at destination point. The technology commonly used to determine the position of objects is the Global Positioning System (GPS). However, GPS does not detect objects that are indoors. Previous research used Wi-Fi as a reference for designing an indoor positioning system, but the system could not determine the position in detail because Wi-Fi could only detect object zones. Based on these problems, this research will propose the infrastructure prototype design of an indoor positioning system based on Visible Light Communication (VLC). The main focus of this research is designing a VLC transmitter and receiver system, estimating the distance between the receiver and transmitter based on the received signal strength, and estimating the receiver's position using the triangulation method based on a minimum of 3 distance estimates. The estimating distance system get average accuracy is 76.47%. The estimated accuracy of the x-coordinate position has the best accuracy is 77.05% and the y-coordinate estimate has the best accuracy is 86.54%.
Co-Authors A.B. Muhammad Abba Zefanya Sosiawan Abd Haq, Muhammad Nauval Izzuddin ABIBI, MUHAMMAD HIDAYAT Adzka, Dundee Maula Afifah Shafira Agung Gunawan Agung Nugroho Jati Agus Kusnayat Ahmad Adhitya Nurhadi Ahmad Ardianto Ahmad Hidayat, Sendi Akhmad Hambali AL FARIZI, SUTAN DIMAS Aliffansyah, Lingga Andi Maulidin Andre Kusuma Andri Eryawan Ahmad Rifki Angga Rusdina Angga Rusdinar Annenta Gistya Sudiartama Annesa Nurhaliza Annisa Reski Febrina, Andi Apnan Juanda Ardianto Primadhi, Rizki Arfianto Fahmi ARIS HARTAMAN Armaya, Geofany Arnez Pramesti Ardi ARSYAD RAMADHAN DARLIS Aswin Mikel Komang ATIK NOVIANTI Audianto Putra Malangi Susilo B, Nurhikmah Amir Bagus Kurniawan Ballynda Putri, Rosmitha Batar, Benyamin S. Bendri Setiadi Siregar Cagar Bagas Prastya Christhoper Helmi Rudijanto Daffa Naufal Albar Damanik , Marvel Cristo Desrul, Dzimar Razaan Hawali Dhita Bagus Ananda Nurman Dida Diah Damayanti Didin Yulian Dinda Pramanta Dino Caesaron Dion Saputra Parulian Sirait Doni Yosef Daniel DWI ANDI NURMANTRIS Erdiansyah Rezamela, Erdiansyah Fajar Apriansyah Imanudin Fajar, Fahri Nur Fajarizki, Luthfi Fajry Adi Rahman Fajry Adi Rahman Farizki, Andinis FAUZI A, FARIS NUR Febrina, Mila Fida Yuzida Hasnah Fiky Yosef Suratman Firdha Affan FITRI, IFTITA Ghani, Ilham GHIFARI, HUMMAM GHASSAN Gina Ilma Amalia Gistya Sudiartama, Annenta Grislend Gloria Natalies Habib, Arrijal Hakim, Wildan Lukmanul Haridha Narulita Kusman Haryo Sapto Adi HASNAH, FIDA YUZIDA Hastuti Hastuti Hendrawan, Bulan Indira Nur Hendrik Januar Ilham Sukma Aulia Imam Rabbani Iman Hedi Santoso Inung Wijayanto Iswahyudi Hidayat Jaka Satria Prayuda Jangkung Raharjo Jannah, Firna Noor Jannati, Faizah Azmi Juliyan, Muhammad Rafly Kemas Muslim Lhaksmana Koredianto Usman M, Achmad Furqon Made Arya Nengga Udayana Mahendra Syakir, Isra Marzuqi Faladina Wibowo Melina Melina, Melina Muhammad Ary Murti Muhammad Hidayat Abibi Muhammad Hilmy Anshoruddin Muhammad Iqbal Muhammad Saladin Prawirasasra Mumtazanisa Fairuzen Murman Dwi Praseti Nanda Aldira Fakhri Ni'Matul 'Abdah Adhiya Fakhriy Nur Fahmi Farabi Nurahman, Friska Aulia Nurul Fahmi Adani Syam Pandu Pira Haskara Pandu Pira Haskara Paramadina Susamti Porman Pangaribuan Pramanta, Dinda Pratama Aminudin Priramadhi, Rizky Ardianto Rahayu Lubis Rifa Ganesha Bermana, Kelvin Rina Pudji Astuti Risyaf Fawwaz Pradipta Rizki Amirullah Rizki Ardianto Priramadhi Rizki Prabudi Rizky Ardianto Priramadhi ROHMAT TULLOH Rumani Mangkudjaja Saddam Nusantara Sukoco Sari Dewi, Alfahrani SATRIATAMA, RISNANDA Shendy Setiawan Sheptian Kurnia Saleh Sianturi, Simon Petrus Siregar, Dony Aristo Hamid SOFIA SAIDAH Sony Sumaryo Sri Kalbu Balilayaran Suci Aulia Sugondo Hadiyoso Syahban Rangkuti Syahnas, Aulia Tania, Angel Bless Tita Haryanti Trada Putra Prasetya Tri Widarmanti UDZRI, MUHAMMAD HAFIDZ Unang Sunarya Violi, Yuke Wahyu Nur Annisa Wildan Ihsan Nuriman Willy Anugrah Cahyadi YAKIN, NIZAR AINUL Yanuar Herlambang Zahrah, Nasywa Nur