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All Journal MAESTRO Kresna: Jurnal Riset dan Pengabdian Masyarakat OKTAL : Jurnal Ilmu Komputer dan Sains AMMA : Jurnal Pengabdian Masyarakat
Suwasti Broto
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Humanities Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing Social Sciences

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RANCANG BANGUN ANTENA QUADRIFILLAR HELIX SEBAGAI GROUND STATION SATELIT CUACA NOAA15 DAN NOAA19 DENGAN PERANGKAT RTL-SDR Hilman Mustofa; Suwasti Broto
MAESTRO Vol 2 No 2 (2019): Edisi Oktober 2019
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Dalam Tugas Akhir ini telah dibuat antena Quadrifillar Helix (QFH) yang dioperasikan pada frekuensi 137 – 138 MHz dengan rentang bandwidth sebesar 1 MHz. Jenis antena ini digunakan sebagai sebagai ground station satelit cuaca NOAA. Hasil perancangan disimulasikan dengan menggunakan software 4NEC2 untuk mengetahui apakah hasil perancangan sudah sesuai atau belum dengan kondisi yang diinginkan. Tahap selanjutnya adalah pembuatan antena dan seluruh pelaksanaan fabrikasi dilakukan di lab Robotic Universitas Budi Luhur dengan bahan utama kabel rg58 dan pipa PVC sebagai penyangga. Kinerja antena Quadrifillar Helix diamati dengan melakukan pengukuran sebanyak 2 kali. Hasil dari pengukuran antena Quadrifillar Helix yang pertama didapatkan nilai matching pada frekuensi 142 MHz. Terjadi pergeseran frekuensi resonan sebanyak 5 Mhz dari perancangan sebelumnya yaitu pada frekuensi 137 MHz. Hasil dari pengukuran antena Quadrifillar Helix yang kedua didapatkan bahwa pergeseran frekuensi antena frekuensi resonan dipengaruhi oleh balun yang dibuat, semakin banyak dan semakin rapat lilitannya akan menghasilkan frekuensi resonan mendekati nilai yang ditentukan pada saat perancangan.
Simulasi Komunikasi V2V (Vehicle-to-vehicle) Dari Website Peta Riil Sebagai Pembentukan Skenario Daerah BSD, Tangerang Selatan Menggunakan Simulator SUMO dan Omnet++ Riefky Rakadiansyah; Suwasti Broto
MAESTRO Vol 4 No 1 (2021): Edisi April 2021
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Abstract in ENGLISH The purpose of this research is to optimize the movement of vehicles in the BSD area, South Tangerang which has a density of vehicles at certain hours. In this study, data on vehicle density calculated manually from a smartphone application called CCTV ATCS INDONESIA from 10:11:46 WIB to 10:27:14 WIB with a total of 154 units of vehicles, from 13:00:57 to 12:00 WIB 13: 15:51 WIB with a total of 142 units of vehicles, and at 17:14:19 WIB until 17:33:14 WIB with a total of 178 units of vehicles. So we need a system that reduces density and avoids road accidents, namely VANET. Because VANET will make it easier for drivers to communicate with each other and exchange information. To achieve this communication, the AODV routing protocol takes a role in this case which will later be created in the SUMO and Omnet ++ simulators. In the SUMO simulator, the communication chats with an indicator in red every time, while in Omnet ++ it reports with a blue indicator. The results of the VANET simulation that have been run from Omnet ++ can also display the results per-node or the entire node at once. The results that can be accessed include maxspeed, sentpackets, totalDistance and others. The resulting parameters have already been defeated by the survey data conducted before the simulation was run on Omnet ++. By applying this research, the movement of each vehicle can be stabilized and does not apply to a collision.
RANCANG BANGUN ANTENA YAGI 5 ELEMEN SEBAGAI PENGUAT SINYAL 4G PADA FREKUENSI 1800 MHZ Safwan Firas; Suwasti Broto
MAESTRO Vol 3 No 1 (2020): Edisi April 2020
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Pada tugas akhir ini telah dibuat antena yagi 5 elemen yang dioperasikan pada frekuensi 1800 MHz. jenis antena ini digunakan sebagai penguat sinyal pada jaringan 4g telkomsel. Hasil perancangan disimulasikan dengan software MMANA-GAL untuk menentukan apakah hasil perancangan sudah sesuai atau belum dengan kondisi yang diinginkan. Setelah itu adalah pembuatan antena dan seluruh pelaksanaan fabrikasi dengan menggunakan kabel rg 58 dengan ukuran diameter pipa 0,6 mm dan 0,8 mm. kinerja antena diamati dengan melakukan pengukuran sebanyak 2 kali dengan ukuran diameter pipa 0,6 mm dan 0,8 mm untuk perbandingan kinerja pada tiap ukuran pipa. Hasil dari pengukuran pertama yang dilakukan di lab Radar Universitas Indonesia dengan antena yagi 5 elemen berukuran pipa 0,6 mm didapatkan hasil valid pada parameter return loss dan vswrnya. Hasil dari pengukuran antena yagi 5 elemen yang kedua dengan ukuran pipa 0,8 mm didapatkan hasil dengan nilai parameter return loss -10.151 dB dan vswr 1,89 yang dimana nilai tersebut termasuk pada karakteristik nilai parameter return loss dan vswr. perubahan nilai pada hasil pengukuran dipengaruhi pada ukuran diameter pipa dan penempatan elemen driven, semakin sejajar elemen driven dengan elemen lainnya semakin mendekati nilai yang ditentukan pada saat perancangan.
Pengujian Quality Of Service jaringan internet dengan memanfaatkan antena wajan bolic sebagai penguat sinyal wifi Ricky Palendra; Suwasti Broto
MAESTRO Vol 2 No 2 (2019): Edisi Oktober 2019
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Saat ini wifi sudah banyak diaplikasikan di berbagai lokasi strategis. Di tempat - tempat tersebut biasanya para pengguna bebas menggunakan akses internet. Bagi yang tempat tinggalnya dekat dengan access point merupakan suatu keuntungan, bagi yang tempat tinggalnya jauh bisa mengakses access point tersebut dengan membangun antena dengan gain yang tinggi sebagai penerima, karena dengan gain yang tinggi maka jangkauan meningkat, salah satu contohnya melakukan simulasi perencanaan pengujian alat wajan bolic pada area converage wifi desa Ujanmas, sehingga area blankspot disekitar area desa Ujanmas dapat berkurang dengan menggunakan wajan bolic antena directional dengan reflector parabola. Pada penelitian ini dirancang dan diimplementasi antena menggunakan reflector diameter 34 cm ke dalaman wajan 3 cm dengan bahan wajan alamunium dan pipa paralon 3 inc. Perancangan dibuat berdasarkan perhitungan rumus secara teoritis terhadap titik fokus reflector dan waveguide, diuji Quality of Service dengan kondisi sebelum dan sesudah menggunakan wajan bolic menggunakan software Inssider Office. Dari hasil pengukuran dan analisis didapatkan hasil sebelum menggunakan wajan bolic level signal yaitu -54 dbm, -71 setelah menggunakan wajan bolic di dapatkan nilai -50 dbm dan -67 dbm untuk Throughput download, upload, latensi, dan packet loss mendapatkan hasil yang maksimal ketika menggunakan antena wajan bolic sebagai penguat sinyal wifi dengan jarak 25 meter dari Access point. Kata Kunci : Quality of Service (QOS), Reflektor, Waveguide, Wifi, Access point.
OTIMISASI DAYA PEMBANGKIT PADA WINDBELT GENEARTOR DENGAN METODE PERTURB & OBSERVE (P&O) Achmad Rizky; Sujono Sujono; Nifty Fath; Nazori AZ; Suwasti Broto
MAESTRO Vol 5 No 2 (2022): Jurnal Maestro Vol.5 No.2. Oktober 2022
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Energi Baru Terbarukan (EBT) menjadi energi alternatif pengganti energi fosil karena ramah lingkungan dan tidak menghasilkan emisi karbon. Energi baru terbarukan merupakan energi yang berasal dari alam yang tersedia di bumi dalam jumlah yang besar, salah satu contoh pemanfaatan energi angin. Perlu dikembangkan energi angin menjadi energi listrik. Generator sabuk angin merupakan salah satu yang dapat memanfaatkan energi angin menjadi energi listrik. Sabuk angin dapat memanfaatkan gerak atau getaran pita yang tertiup oleh angin kemudian menggerakan magnet yang berada di dekat kumparan dan menginduksi kumparan tersebut sehingga menghasilkan arus listrik.Beberapa faktor yang memperngaruhi induksi GGL terbaik dari sebuha windbelt generator yaitu : ukuran pita, ukuran magnet, jumlah lilitan kumparan, dan keceptan angin. Agar daya yang dihasilakan sabuk angin tetap berada pada titik maksimum meskipun dengan kecepatan angin yang berubah-ubah maka diperlukan sebuah sistem Maksimum Power Point Tracking (MPPT). Oleh karena itu penelitian ini merancang sebuah sistem MPPT dengan menggunakan metode Perturb & Observe (P&O) dengan cara mengendalikan (tension) pita berdasarkan tegangan keluaran windbelt. Nilai rata-rata yang dihasilkan oleh windbelt generator sebesar 1,67 Volt pada pengujian sistem tanpa beban.Pada pengujian sistem menggunakan beban tegangan keluaran dari generator windbelt mengalami penuruan yang drstis karena arus yang dihasilkan sangan kecil sehingga tidak mampu melewati beban. Oleh karena itu penelitian ini merancang sebuah sistem MPPT dengan menggunakan metode Perturb & Observe (P&O) dengan cara mengendalikan (tension) pita berdasarkan tegangan keluaran windbelt. Nilai rata-rata yang dihasilkan oleh windbelt generator sebesar 1,67 Volt pada pengujian sistem tanpa beban. Pada pengujian sistem menggunakan beban tegangan keluaran dari generator windbelt mengalami penuruan yang drstis karena arus yang dihasilkan sangan kecil sehingga tidak mampu melewati beban.Oleh karena itu penelitian ini merancang sebuah sistem MPPT dengan menggunakan metode Perturb & Observe (P&O) dengan cara mengendalikan (tension) pita berdasarkan tegangan keluaran windbelt. Nilai rata-rata yang dihasilkan oleh windbelt generator sebesar 1,67 Volt pada pengujian sistem tanpa beban. Pada pengujian sistem menggunakan beban tegangan keluaran dari generator windbelt mengalami penuruan yang drstis karena arus yang dihasilkan sangan kecil sehingga tidak mampu melewati beban.
PERANCANGAN SISTEM PENDETEKSIAN OBYEK BOLA DENGAN METODE FRAMEWORK YOLOv4 Jalu Nuralim; Nifty Fath; Akhmad Musafa; Sujono Sujono; Suwasti Broto
MAESTRO Vol 5 No 2 (2022): Jurnal Maestro Vol.5 No.2. Oktober 2022
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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In this final project, a spherical object detection system has been designed in which the final result will display the class name according to the detected object and a bounding box on the object indicating the object is detected accordingly. What will be done from having a dataset of 202 images and divided into 70% training data, 20% validation data, 10% test data. By using the YOLOv4 method, it is hoped that the detection of spherical objects will be more efficient in detecting an object that is needed, the final result of the implementation of this spherical object detection system will display a bounding box and the accuracy of objects detected on the laptop screen for testing and analysis results of the YOLOv4 method performance system. done by confusion matrix which calculates the results of accuracy, recall, precision and there are several tests to find out with different conditions the system can detect an object. In the first test, the ball was detected by being blocked by another object in the percentage value of 50%, 60%, 70% of the system being able to detect a ball object that was blocked by another object, then with an obstacle value of 80%, 90%, 100% the system could not detect a ball object.
RANCANG BANGUN SISTEM PENGATURAN PENETRALISIR KEASAMAN AIR LIMBAH RUMAH TANGGA Hendryono Saputra; Nazori A Z; Eka Purwa Laksana; Suwasti Broto; Indra Riyanto
MAESTRO Vol 5 No 2 (2022): Jurnal Maestro Vol.5 No.2. Oktober 2022
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Neutralizing household wastewater into clean water is currently one way to reduce groundwater use. In this final project, a neutralization system will be designed for residential wastewater into clean water. This system consists of, water level sensor, water ph sensor, microcontroller, pump, . Wastewater from each house is channeled into a holding tank. If the waste water reservoir is full and the clean water reservoir is empty, the wastewater from the reservoir is channeled into a water treatment tank to be processed into clean water with a pH value of 7 to 9. achieved. Meanwhile, if the waste water reservoir is full and the clean water reservoir is also full, the clean water can be channeled for the needs of the residents or flowed into the river. With this concept, residents' need for clean water from ground water can be reduced and the water discharged into the river is also clean water that does not pollute the river. The energy source for power supply to the system comes from solar energy which is stored using batteries. The process of neutralizing wastewater with injection / addition of aluminum sulfate / alum (Al2OH) and aluminum chloride (PAC) as much as 9 mL is able to raise the pH from 4.3 to 7.81 so the results have met the water quality standard.
ANALISA KINERJA MONITORING SUHU DAN KELEMBAPAN TANAH BERBASIS IOT PADA ALAT PENYIRAMAN OTOMATIS TANAMAN CABAI DI DALAM GREEN HOUSE Faisal Adi Putra Tomyka Ode; Eka Purwa Laksana; Nifty Fath; Suwasti Broto; Indra Riyanto
MAESTRO Vol 6 No 1 (2023): Jurnal Maestro Vol.6 No.1. April 2023
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Chili plants really need to be considered both in terms of planting or watering, but they really need a place that has good soil levels and an ambient temperature that is not too hot or cold. If these plants can be watered automatically, it is likely that the quality of the plants will be good and will get good results. This study aims to design an automatic watering device that will be monitored remotely so that soil moisture is maintained. Where this final project has designed an automatic watering device and keeps the temperature inside the Green House automatically based on IoT and a monitoring system based on several prototypes controlled by Arduino mega2560 and NodeMCU ESP8266 as a data sending tool and connecting to Thinger.io which functions to display data, the pump will active to water the plants when the sensor value reading is above or more than 70% and the pump will stop when the sensor reading value is below or more than 50%, then the fan will turn on when the temperature value inside the green house is more than 28 degrees Celsius and the fan will turn off when the temperature value inside the green house is less than 28 degrees Celsius. The Soil Mousture sensor functions as a reader of the humidity value in chili plants and the DHT11 sensor as a reader of the temperature value in the Green House. Based on the TIPHON standard, QoS testing of monitoring system communications is included in the good category, for throughput testing the index value is 4, packet loss index value is 4, delay index value is 1, and jitter index value is 1.
BIKE RENTAL LOCATION TRACKING SYSTEM WITH INTERNET OF THINGS IMPLEMENTATION Fikri Hidayatulloh; Peby Wahyu Purnawan; Indra Riyanto; Nifty Fath; Suwasti Broto
MAESTRO Vol 6 No No 2 (2023): Vol.6 No. 2. Oktober 2023
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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The situation of bicycle rentals in the tourist spots of the old city, there is one bicycle rental company whose locations are scattered at several points in the old city, the bicycles used are ontel bicycles. Bike rentals are guarded by several people with the aim of maintaining bicycles. The design of a GPS system on bicycles that can be controlled through a hosting application, consists of two main parts, namely the design of the hardware to provide GPS on bicycles, through the hosting application and the software for the control system. The concept used for the process of granting gps is with two parts, namely Node and Gateway. The NEO 6M GPS module functions as a bicycle monitoring and is used for long-distance communication links. A system that has been comprehensively tested both in terms of accuracy and internet of things (IOT). Conduct GPS Tracker testing on bicycles in the Kota Tua area to find out how accurate the GPS Tracker is in determining the location of bicycles in the Kota Tua area. The test will produce the number of location points collected by the Neo 6M GPS while traveling in the Kota Tua area, the more point data collected, the better the precision and accuracy. The test results will also show bicycle trips in the Kota Tua area. From the results of an analysis of the Internet of Things on the GPS Tracker device, everything works well and is in line with expectations. Communication between the Sim 800L and Website Hosting has a delay. Making this system requires several components, such as Arduino Uno as the brain of the GPS Tracker device and also the GPS module. Neo 6M to get the coordinates from the satellite. For sending data to the server using the GPRS Sim 800L module, the system can display geofencing of the location of the bicycle on the monitoring map so that users can find out where the bicycle is even though the bicycle is rented out. The alert system can display notifications when the bicycle is outside the geofencing area "the bicycle has exceeded the geofencing area"
DESIGN OF A MINI WIND POWER PLANT USING A WASHING MACHINE DYNAMO AS A Crate ENERGY SOURCE COOLING FISH ON SHIP TRADITIONAL FISHERMAN Maulana Ifdil Hanafi; Suwasti Broto; Eka Purwa Laksana
MAESTRO Vol 6 No No 2 (2023): Vol.6 No. 2. Oktober 2023
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Electricity is an important need for the people of Indonesia, but the need for electricity on traditional fishing boats is one of the main causes because traditional fishing boats do not have po wer plants as a source of energy for refrigerators and also for lighting on traditional fishing boats. Based on these problems, a mini wind power plant was created as a renewable energy using an AC Servo Motor as a generator, and a rectifier as a voltage r ectifier, SCC (Solar Charge Controller) as input and output control, and Arduino Uno as a microcontroller, which works with utilizing sea breeze pressure of 13,73 m/s, with RPM on the rotor of the ac servo motor of 225, and producing a voltage value of 14, 51 VDC, a current value of 12 ,2 mA, and a power of 177 , 022 mW. Later the voltage generated by the PLTB (Wind Power Plant) will be used as an energy source for charging the battery with a charging time of 15 minutes per 0 , 1 VDC, and using the battery as a source of cold storage energy for 6 hours with the lowest temperature at colg storage of 6,7 °c.
Co-Authors Achmad Rizky Arsanto Narendro DODY KURNIAWAN Faisal Adi Putra Tomyka Ode Fatahillah Al Mahfudz Fath, Nifty Fikri Hidayatulloh Hendryono Saputra Hilman Mustofa Indra Riyanto Inggit Musdinar Sayekti Sihing Yang Mawantu Jalu Nuralim Laksana, Eka Purwa Maulana Ifdil Hanafi Musafa, Akhmad Musodo, Krisna Adiyarta Nazori AZ Peby Wahyu Purnawan Pijar Nurofiq Pratama Ricky Palendra Riefky Rakadiansyah Ruwirohi, Jan Everhard Safwan Firas Sujono Sujono Tatang Wirawan Wisjhnuadji Tatang Wirawan Wisnuadji Yani Prabowo