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All Journal Jurnal Teknik Elektro Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Jurnal Informatika dan Teknik Elektro Terapan Orbith : Majalah Ilmiah Pengembangan Rekayasa dan Sosial TESLA: Jurnal Teknik Elektro Mitra Akademia: Jurnal Pengabdian Masyarakat SPEKTRAL : Journal of Communications, Antennas and Propagation JURNAL POLI-TEKNOLOGI
Agus Wagyana
Politeknik Negeri Jakarta
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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PENINGKATAN KAPASITAS LINK RADIO UNTUK MENGATASI WAN CONGESTION DENGAN METODE LINK AGGREGATION Ranadipura, Tatiana; Wagyana, Agus
Orbith Vol 14, No 1 (2018): Maret 2018
Publisher : Orbith

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

Abstract

Penggunaan traffic jaringan selular yang tinggi dapat menyebabkan performansi jaringan menjadi buruk. Jika penggunaan traffic pada link microwave sangat tinggi dan hampir mencapai kapasitas bandwidth jaringan yang disediakan, maka akan menimbulkan WAN congestion. Utilisasi link microwave radio yang tinggi juga dapat mengindikasikan terjadinya WAN congestion. WAN congestion yang terjadipada link radio site 1331<> site 1126 PT. XL Axiata dapat ditangani dengan metode link aggregation physical layer. Metode link aggregation yang digunakan adalah meningkatkan sistem radio dari 1+1 menjadi sistem radio 2+0 dengan menggabungkan 2 port fisik radio menjadi 1 link logical. Metode link aggregation physical layer meningkatkan kapasitas ethernet link radio 1331<>1126  yang semula sebesar 116 Mbps menjadi 274 mbps. Utilisasi jaringan yang semula bernilai 94,49% menurun 51,93%, menjadi 42,56% setelah dilakukan upgrade kapasitas link radio menggunakan metode link aggregation physical layer. Parameter performansi yang diukur setelah dilakukan peningkatan kapasitas yaitu Iubpacket loss tertinggi sebesar 2%, Iub jitter tertinggi sebesar 2,3 ms, Iub rejection tertinggi sebesar 10%, dan nilai Iub delay sebesar 0 ms. Nilai performansi menjadi lebih baik dan sesuai standar KPI PT. XL Axiata. Peningkatan kapasitas link radio juga membuat performansi jaringan menjadi lebih baik, karenakebutuhan bandwidth pelanggan terpenuhi dengan adanya penambahan kapasitas yang efisien.Kata kunci: kapasitas, link aggregation, throughput, utilisasi, WAN congestion
Rancang Bangun Antena Bowtie pada Video Sender sebagai Pemancar TV Streaming Bestari, Nabila Shaffa; Wagyana, Agus
Jurnal Teknik Elektro Vol 10, No 2 (2018): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v10i2.16403

Abstract

A streaming television usually broadcasted through internet and can be watched on computer or mobile phone. However it can also be seen through television using video sender as the transmitter. To transmit it, of course, a suitable antenna is needed, in this case a bowtie antenna is selected. This research describe the design of a bowtie antenna that will be used as a transmitter antenna on a video sender. This bowtie antenna is designed by using an aluminum plate works on frequency of 655 MHz and has a return loss value of -21.127 dB, VSWR 1.192, 5.11 dB gain and bi-directional radiation pattern. The analysis process is carried out by analyzing the data taken from the audio and video results received in television as well as data from the measurement of signal strength captured by Register Transfer Level Software Define Radio (RTL SDR) and dipole antennas. Measurement results will be displayed in the sdrSharp software. The results of this measurement will be associated with field strength which is related to television signals. This bowtie antenna can transmit audio and video up to 30 m and has an average field strength value in Line of Sight (LOS) conditions of 120.3208 dBμV / m and at Non Line of Sight (NLOS) conditions of 123.5014 dBμV / m which is in accordance with the field strength standard in Indonesia that regulated in Perkominfo No. 31 Tahun 2014 which is above 70 dBμV / m in band V.
Rancang Bangun Sistem Pemantau dan Pengendali Nutrisi Tanaman Hidroponik Berbasis Modul Long Range (LoRa) Shafira Rana Rafidah; Agus Wagyana
Spektral Vol. 1 No. 1 (2020): Oktober 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/spektral.v1i1.3434

Abstract

Hidroponik merupakan metode pembudidayaan tanaman tertentu menggunakan air sebagai media tanamnya. Pemenuhan dan pemeliharaan tanaman hidroponik relatif tidaklah sulit, namun membutuhkan perhatian yang lebih, seperti pemantauan kondisi larutan yang harus dilakukan secara rutin. Sampai saat ini, pemantauan parameter larutan nutrisi tanaman hidroponik masih banyak dilakukan secara manual. Penelitian ini bertujuan untuk mendapatkan sistem monitoring suhu dan kepekatan larutan di media tanam serta sistem pengendali otomatis penambahan larutan nutrisi tanaman hidroponik. Sistem menggunakan sensor suhu DS18b20 dan sensor kepekatan larutan SEN0244. Sedangkan komunikasi jarak jauh antara user dan unit hidroponik menggunakan modul LoRa RFM95W dengan frekuensi 915 MHz. Secara otomatis sistem akan memberikan larutan nutrisi apabila kadar kepekatan larutan sudah mengalami penurunan di bawah 1000 ppm. Hasil pengujian pengiriman data pada kondisi LOS mendapatkan jarak jangkauan terjauh adalah 700 m dengan RSSI -103 dBm sedangkan pada kondisi NLOS didapatkan jarak terjauh hanya 200 m dengan RSSI -101 dBm. Selain itu hasil pengujian kondisi kepekatan air selama dua minggu menunjukan bahwa saat sensor kepekatan nutrisi mendeteksi nilai di bawah 1000 ppm maka pompa bekerja memberikan larutan tambahan.
Rancang Bangun Antena Mikrostrip Triangular Patch Planar Array 2x2 Elements Frekuensi 1,2 GHz untuk Penerima Video Wireless LCD Projector Muhammad Nur Tri Yuliarto; Agus Wagyana
Spektral Vol. 2 No. 1 (2021): April 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/spektral.v2i1.3801

Abstract

LCD projectors are widely used to support presentations on teaching and learning activities, meetings, seminars and so on. This study discusses the design and manufacture of a 2x2 planar array triangular patch microstrip antenna as a receiving antenna for wireless LCD projectors to overcome cable length limitations. The research method starts from the design, simulation of design results, fabrication, parameter measurement and antenna testing. The design was carried out using the CST Studio Suite application, then made on the FR-4 PCB. Testing includes measurement of antenna parameters and performance. In testing the antenna parameters, the values ​​obtained are in accordance with predetermined specifications, gain above 3 dB, VSWR below 2 dB, return loss below -10 dB and unidirectional radiation pattern. The antenna performance test results show that the quality of signal and video reception from the microstrip receiving antenna that has been made is still better than the default antenna for the receiver device.   Keywords: Microstrip triangular patch plannar 2x2 elements, wireless LCD projector
Prototipe Modul Praktik untuk Pengembangan Aplikasi Internet of Things (IoT) Agus Wagyana
Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Vol 8, No 2 (2019): Edisi Desember 2019
Publisher : Fakultas Teknik Elektro - Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/setrum.v8i2.6561

Abstract

Internet of things is one of the pillars of Industry 4.0 so that the competence of concepts and practices is very useful, especially for students or workers. This practice module is designed to support practical activities (or training) for developing Internet of Things applications. The method used to make the prototype of this module consists of determining specifications, designing and selecting appropriate hardware, application development, and testing. As a result, this module uses the ESP32 board as the main controller and a number of input and output components, which consist of ten different input components and seven different output components. In general, this prototype has worked well in accordance with specified specifications so that it can be used to develop various IoT applications with existing or added input and output components.
RANCANG BANGUN SISTEM PENDETEKSI TINGGI BADAN DAN ANTRIAN OTOMATIS PADA PINTU MASUK WAHANA BERMAIN Dandy Permana Putra; Agus Wagyana
TESLA: Jurnal Teknik Elektro Vol 23, No 1 (2021): TESLA: Jurnal Teknik Elektro
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/tesla.v23i1.9499

Abstract

The amusement rides, has a height limit for riding a rides. The regulation was made for security and safetywhen riding a rides. In dangerous amusement rides, height regulation is made with a minimum height with a high enoughnumber, the height limit can be above 130 cm. The limit makes many visitors can’t ride rides because they have less height.But even though the regulation has been made, there are still many visitors who still want to ride the amusement rides eventhough its height is insufficient. Therefore, it would be more effective if an automatic door was made that could detect theheight of the visitor's and the door would open if the visitor's had a sufficient height. This door is placed in the positionbefore the queue, so in addition to the automatic door, there is also a system of counting the number of visitors who are in thequeue. The number of queues will be displayed on the seven segment screen and if the queue is full it will be informed on theLCD. The height limit on this door is made with a minimum height of 130 cm so that the door is open. This door height andautomatic queuing system uses the Arduino Mega microcontroller and the FC-51 infrared obstacle sensor to detect visitors.Besides this door is equipped with LEDs and loudspeakers as a provider of information about the visitors of the amusementrides is allowed to enter or not due to the height of the visitor's. ABSTRAK:Sebuah wahana bermain, memiliki peraturan batas tinggi badan untuk menaiki wahana. Peraturan tersebutdibuat demi keamanan dan keselamatan saat menaiki suatu wahana. Dalam wahana yang berbahaya, peraturan batas tinggibadan dibuat dengan tinggi minimal dengan angka yang cukup tinggi, batas tinggi bisa berupa diatas 130 cm. Batas tersebutmembuat banyak pengunjung wahana tidak bisa menaiki wahana karena memiliki tinggi yang kurang. Walaupun peraturantersebut sudah dibuat, masih banyak pengunjung wahana yang tetap ingin menaiki wahana walaupun tinggi nya kurangmencukupi. Oleh karena itu, akan lebih efektif jika dibuat sebuat pintu otomatis yang dapat mendeteksi tinggi badanpengunjung wahana dan pintu akan terbuka jika pengunjung wahana memiliki tinggi yang cukup. Pintu ini diletakan padaposisi sebelum antrian, maka selain pintu otomatis, juga ada sistem penghitung jumlah pengunjung yang berada didalamantrian. Jumlah antrian akan ditampilkan di layar seven segment dan jika antrian penuh akan diinformasikan pada LCD. Batastinggi badan pada pintu ini dibuat dengan tinggi minimal 130 cm agar pintu terbuka. Sistem pintu pengukur tinggi dan antrianotomatis ini menggunakan mikrokontoler Arduino Mega serta sensor infrared obstacle FC-51 untuk mendeteksi adanyapengunjung. Selain itu pintu ini dilengkapi dengan LED dan loudspeaker sebagai pemberi informasi tentang pengunjungwahana diperbolehkan untuk masuk atau tidak dikarenakan tinggi badan pengunjung wahana.
RANCANG BANGUN MIKROSTRIP COUPLER UNTUK MOBILE WiMAX PADA FREKUENSI 2,3 GHz Zulhelman Zulhelman; Agus Wagyana; Teguh Firmansyah
Jurnal Poli-Teknologi Vol. 10 No. 2 (2011)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.219 KB) | DOI: 10.32722/pt.v10i2.7

Abstract

The function of the coupler in RF WiMAX is to separate the transmitted signal to the received signal. At the branch line couplerthere are two equal output values with the phase difference of 90°. The phase difference is used as the separator between the transmitter and the receiver. In this paper, a microstripbranch line couplerwith a T-junction will be designed which is operated at 2,3 GHz frequency with two equal output values of - 3dB and 90 ° phase differences. In here also the length and width for each impedance line of the microstripbranch line coupler using FR4 substrate with a dielectric constant of 4,6 and a thickness of 1,6 mm are calculated. It is shown from the results that the microstripbranch line coupleroperates at 2,300 GHz, the return loss is - 27.633 dB, the VSWR is 1,060, and the bandwidth is 200 MHz. And it is shown from the measurement microstrip branch line coupler operates at 2,320 GHz, the return loss is - 24.33 dB, the VSWR is 1,120, and the bandwidth is 210 MHz. Key words :Coupler, Microtrip, Mobile WiMax ABSTRAK Fungsi coupler pada RF WiMAX dirancang sebagai pemisah sinyalyang ditransmisikan dengan yang diterima. Pada branch line coupler terdapat dua output yang bernilai sama besar dengan beda fasa sebesar 90°. Perbedaan fasa inilah yang digunakan sebagai pemisah antara transmitter dengan receiver. Pada penelitian ini dirancang microstrip branch line coupler dengan T-junction yang bekerja pada frekuensi 2,3 GHz dengan nilai kedua ouput sebesar – 3 dB dan beda fasa 90°. Tahapan yang dilakukan adalah merancang panjang dan lebar untuk setiap saluran impedansi pada microstrip branch line coupler dengan menggunakan substrat FR4 yang memiliki konstanta dielektrik sebesar 4,4 dengan ketebalan 1,6 mm. Dari hasil perancangan didapat frekuensi kerja dari microstrip branch line coupler adalah 2,300 GHz, besarnya return loss adalah -27,633 dB, VSWR sebesar 1,060, dan bandwidth sebesar 200MHz. Hasil yang dirancang di pabrikasi dan dilakukan pengukuran. Dari hasil pengukuran didapat frekuensi kerja dari microstrip branch line coupler adalah 2,320 GHz, besarnya return loss adalah -24,33 dB, VSWR sebesar 1,120, dan bandwidth sebesar 210 MHz. Kata kunci : Coupler, Microtrip, Mobile WiMax
Pengembangan Sexual Assault Panic Button dengan Fitur Perekam Suara dan Gambar serta Notifikasi Pesan dan Koordinat GPS Nabila Azalia Rahma; Agus Wagyana
Spektral Vol. 3 No. 2 (2022): Oktober 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/spektral.v3i2.5103

Abstract

Efforts to prevent cases of sexual violence can be carried out in various ways, one of which is by making a panic button that can be used when in an emergency situation. This panic button is equipped with several features, namely image capture, voice recording, message notifications, and sending GPS location coordinates. The main component used is a push button which is connected to the ESP32 and ESP-32Cam microcontrollers. Other modules used are the Neo - 6M GPS module as a location tracker, the ISD1820 module as a voice recorder, and a buzzer as an alarm generator. The ESP-32Cam module functions to take pictures automatically. When the victim of sexual violence presses the push button on the device, the buzzer will sound as an alarm and the ISD1820 module will start recording sound. Then, ESP32 will send a message via the Telegram application in the form of a warning sign and a Google Maps link obtained from the GPS module. In addition, the push button is also connected to the ESP-32Cam which automatically takes pictures and sends them to the Telegram application. There are 2 tests performed on this panic button. The first is the GPS feature test which was carried out in 2 different conditions with an average distance difference of 3.7765 m at an open location and 13.085 m at a closed location. The second is the calculation of the delay in the process of sending data from the panic button to the telegram application with a delay value of 04.29 seconds in remote testing and a delay of 04.2133 seconds at close range and the average delay value is 04.25 seconds.
Sistem Monitoring pada Ruang Perpustakaan berbasis Internet of Things William, Andre; Wagyana, Agus
TESLA: Jurnal Teknik Elektro Vol 25 No 2 (2023): TESLA: Jurnal Teknik Elektro
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/tesla.v25i2.26748

Abstract

An Internet of Things (IoT) based library room monitoring system is an innovative solution that utilizes the latest technology to help monitor temperature, humidity, lighting levels and noise levels in library rooms. This system is designed to provide accurate and fast information to library managers. This system aims to make it easier for library managers to monitor library space. This system can be accessed via a mobile application, allowing library managers to monitor the library situation remotely. This system uses sensors connected to the internet to collect real-time data about the condition of the library room. These sensors are placed in the library reading room to monitor these parameters and send data to the database. The design of this monitoring system uses the ESP32 device as the main microcontroller which controls each sensor and internet connection and the ESP32CAM as the camera. The measurement of the relative error value is calculated based on the difference between the value from the actual tool and the value read by the sensor used. The value of the actual measuring instrument obtained will be used to calibrate each sensor so that the sensor results will be close to the value of the measurement results of the measuring instrument. Testing for each sensor is carried out 10 – 20 times to get more accurate test results. The relative error value for the DHT22 sensor temperature is 1.15% and the humidity is 5.12%. The relative error values for the BH1750 sensor when the lights are off and on are 2.84% and 2.10% respectively. The relative error values for the MAX 9814 sound sensor at a distance of 4 meters and 3 meters are 6.02% and 6.24% respectively. When noise occurs, the tool will respond in the form of a buzzer sound and take an image from the ESP32 CAM. The error values that appear on the BH 1750 and DHT 22 sensors are because the measuring instrument has the accuracy value of the measuring instrument, as well as the sensor accuracy, whereas in the MAX 9814 Sensor test it is due to deficiencies in the conversion of bit values to dB form and imperfect sensor calibration.  ABSTRAK: Sistem monitoring ruangan perpustakaan berbasis Internet of Things (IoT) merupakan solusi inovatif yang memanfaatkan teknologi terkini untuk membantu memonitoring suhu, kelembapan, tingkat pencahayaan dan tingkat kebisingan pada ruang perpustakaan. Sistem ini dirancang untuk memberikan informasi yang akurat dan cepat kepada pengelola perpustakaan. Sistem ini bertujuan untuk mempermudah pengelola perpustakaan dalam memantau ruang perpustakaan. Sistem ini dapat diakses melalui aplikasi mobile, memungkinkan pengelola perpustakaan untuk memantau situasi perpustakaan dari jarak jauh. Sistem ini menggunakan sensor yang terhubung dengan internet untuk mengumpulkan data secara real-time tentang kondisi ruangan perpustakaan. Sensor-sensor ini ditempatkan di bagian ruangan baca perpustakaan untuk memantau parameter-parameter tersebut dan mengirimkan data ke database. Perancangan sistem monitoring ini menggunakan perangkat ESP32 sebagai mikrokontroler utama yang mengendalikan setiap sensor dan koneksi internet dan ESP32CAM sebagai kameranya. Pengukuran nilai eror relatif dihitung berdasarkan perbedaan antara nilai dari alat aktual yang ada dengan nilai yang dibaca oleh sensor yang digunakan. Nilai dari alat ukur aktual yang didapatkan akan digunakan untuk kalibrasi dari setiap sensor agar hasil sensor nantinya mendekati nilai dari hasil pengukuran alat ukur. Pengujian tiap sensor dilakukan 10 – 20 kali untuk mendapatkan hasil pengujian yang lebih akurat. Nilai eror relatif suhu sensor DHT22 adalah 1,15% dan kelembapannya 5,12%. Nilai eror relatif pada sensor BH1750 pada saat lampu mati dan menyala masing masing 2,84% dan 2,10%. Nilai eror relatif pada sensor suara MAX 9814 pada jarak 4 meter dan 3 meter masing masing 6,02% dan 6,24%. Saat terjadi kebisingan, alat akan memberikan respon berupa bunyi buzzer dan pengambilan gambar dari ESP32 CAM. Nilai eror yang muncul pada sensor BH 1750 dan DHT 22 karena alat ukur memiliki nilai akurasi dari alat ukur, serta akurasi sensor sedangkan pada pengujian Sensor MAX 9814 adalah karena kekurangan dalam konversi nilai bit ke bentuk dB serta kalibrasi sensor yang kurang sempurna.
RANCANG BANGUN PERANGKAT KERAS SISTEM PEMANTAU POTENSI TANAH LONGSOR DENGAN WIRELESS SENSOR NETWORK BERBASIS LORA Poetra, Andreas Genta Exna; Wagyana, Agus; Febrian, Muhamad Reza
Spektral Vol. 5 No. 2 (2024): Oktober 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/spektral.v5i2.7130

Abstract

Landslides represent one of the natural disasters that cause extensive harm to communities, affecting them morally and materially. Various parties, including the government, have implemented various efforts to prevent and reduce the impact of landslides. Because landslide potential areas are difficult to do directly, a tool is designed that is able to monitor areas that have the potential for landslides. The purpose of this research is to design hardware and monitor soil movement in a potential landslide location. The device uses ultrasonic sensor and accelerometer sensor to measure the ground movement. Early warning system is made as an effort to provide warnings to local residents if there are indications of land movement that has the potential to become a landslide disaster. In the process of sending data, LoRa module is used. For remote monitoring of soil movement, the data taken by the sensor will be sent to the Thingspeak IoT platform so that soil movement can be monitored in graphical form. This system can send data up to a radius of 1200 meters, and has a fairly low percentage error value below 1% for measurements using ultrasonic sensors and can monitor the movement of tools using accelerometer sensors.
Co-Authors Ahmad Rifai Ar-Razy, Hikam Bestari Dwi Handayani Budi Utami Damas Srihantaran, Omar Rais Dandun Widhiantoro Dandy Permana Putra Fathurahman, Mohamad Febrian, Muhamad Reza Inayah, Nazmi Muhammad Nur Tri Yuliarto Nabila Azalia Rahma Octariano, Andafa Eka Poetra, Andreas Genta Exna Prama Hawelayuda Ramadhanti Aisyah Putri Bintoro, Arnetta Ranadipura, Tatiana Shafira Rana Rafidah Teguh Firmansyah William, Andre zulhelman Zulhelman Zulhelman