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ANALISIS PERBANDINGAN SUSUNAN RANGKAIAN PADA LAMPU LED UNTUK PENERANGAN Martono Dwi Atmadja; Farida Arinie Soelistiant; Harrij Mukti Kristiana
SENTIA 2016 Vol 8, No 2 (2016)
Publisher : SENTIA 2016

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (786.793 KB)

Abstract

Dewasa ini perkembangan di bidang lampu penerangan, LED kini mulai digunakan sebagai lampu penerangan baik untuk penerangan rumah maupun jalan. Di Indonesia sendiri penggunaan LED dalam penerangan sudah banyak digunakan, ini karena harga dari lampu LED yang relatif terjangkau jika dibandingkan dengan lampu penerangan  lain  yang  biasa  digunakan.  Pembuatan  LED  dilakukan  berdasarkan  kebutuhan  tegangan  yang umumnya digunakan oleh konsumen, yaitu pada tegangan listrik bolak-balik 220 V. Maka susunan LED yang paling tepat adalah rangkaian seri, yang dihubungkan dengan kombinasi resistor dan kapasitor sebagai penurun tegangan, LED ini sendiri disuplai oleh tegangan 220V yang sudah disearahkan sehingga sesuai dengan kebutuhan dari total LED yang dipasang. sehingga tegangan keluaran dari suplai adalah tegangan searah, bukan lagi tegangan bolak – balik. Pada percobaan dilakukan pengujian menggunakan daya nyata dan daya semu serta luntuk mendapatkan data yang dibutuhkan. Dari hasil pengujian yang dilakukan terhadap dua rangkaian  driver LED menghasilkan faktor daya  dari rangkaian ini sangat rendah untuk jenis transformerless, sedangkan  driver  LED  dengan  rangkaian  switching  menghasilkan  faktor  daya  yang  lebih  tinggi  sehingga mempengaruhi konsumsi daya LED.
MONITORING SISTEM PENCAHAYAAN LAMPU PARUH WAKTU PADA RUANG RAWAT INAP BERBASIS MIKROKONTROLER Farida Arinie Soelistianto; Martono Dwi Atmadja; Ahmad Wahyu Purwandi
Jurnal Ilmiah Flash Vol 4 No 2 (2018)
Publisher : P3M- Politeknik Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (726.411 KB) | DOI: 10.32511/jiflash.v4i1.204

Abstract

Pencahayaan lampu dalam ruang rawat inap merupakan salah satu fasilitas rumah sakit untuk membantu proses penyembuhan pasien. Sesuai dengan Undang – Undang No.44 tahun 2009 pedoman teknis tentang fasilitas rawat inap adalah ruang dan fasilitas didukung oleh sistem pencahayaan lampu secara alami dan/atau pencahayaan buatan. Fasilitas fisik pencahayaan dalam ruang harus bersifat optimal sesuai dengan fungsi masing – masing ruang. Sedangkan pencahayaan buatan direncanakan dengan tingkat iluminasi dengan syarat pertimbangan efisiensi, efek silau dalam pantulan.Tujuan dalam penelitian ini mengatur intesitas cahaya lampu sesuai dengan kombinasi paruh waktu untuk menekan ketidaknyamanan pasien dengan metode sensor cahaya dan sensor suhu sebagai bagian dari perawatan dalam ruang menggunakan pengaturan secara mikrokontroler dan dimonitoring dalam database web server. Hasil dari ngujian sistem dari dua buah sensor yaitu sensor LDR dapat diatur pembacaannya dalam paruh waktu pagi sebesar 400lux, siang hari 200 lux dan malam hari 120 lux. Lampu ultraviolet digunakan hanya pada tingkat kelembaban ruang diatas suhu menggunakan sensor DHT11 yang sudah ditentukan yaitu rata-rata suhu 250C sampi 290C. Delay pengiriman data rata – rata sebesar 0.60 ms.
Implementasi Manajemen Bandwidth VoIP Pada IP-PBX Menggunakan Routerboard di Jaringan Intranet Nadhirotun Maulidiyah; Martono Dwi Atmadja; Mohammad Abdullah Anshori
Jurnal Jaringan Telekomunikasi Vol 10 No 4 (2020): Vol 10 No 04 (2020) : Desember 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i4.74

Abstract

The growing number of internet applications and their users can affect the quality of the internet, each application has different traffic needs. In addition, bandwidth management can also lend bandwidth that has been allocated in accordance with its priorities in order to optimize existing bandwidth usage. Regulating and limiting internet bandwidth usage is indeed an important thing when our internet connection is limited. We need to limit the bandwidth quota of each user connected to the Mikrotik Router. In Mikrotik Router itself, there are features that can limit bandwidth, namely simple queue and queue tree. In the use of VoIP services, bandwidth management is required to manage traffic on the network, the appropriate bandwidth settings can optimize the speed of data transmission. Looking at the internet needs, this research designs an implementation of bandwidth management using routerboard, which will be applied to IP-PBX and use raspberry pi as a server. The results of the research on bandwidth management implementation in simple queue and queue tree is each able to serve 6 users with PCMU codecs, from the test obtained packet loss value of 0.00% from 3 clients, and jitter has an average value of 167.37% from 3 clients.  
Design and Implementation of Laser Rangefinderfor Obstacle Height Monitoring on Line of Sight of Microwave Communication Link Hudiono Hudiono; Mochammad Taufik; Ridho Hendra Yoga P.; Martono Dwi Atmadja
The Indonesian Green Technology Journal Vol 7, No 2 (2018)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1066.006 KB) | DOI: 10.21776/ub.igtj.2018.007.02.03

Abstract

A laser rangefinder is a device that uses laser light to determine the distance of an object. The working principle of this laser rangefinder is that the laser beam that is emitted to the object will be reflected back to the rangefinder, and the required propagation time of laser beam will be calculated to get the distance value. In this study, a laser rangefinder system was designed to be used as monitoring of obstacle height between the line of sight of a microwave communication link using a quadcopter, which is used as a top-viewer picture taker. The quadcopter was used as a device to carry the laser rangefinder to measure the obstacle height between the location points of near-end and far-end. The obstacle height reading results were transmitted using a 5.8 GHz wireless transceiver to the monitoring location in real time. The data received were then processed to be displayed in the form of obstacle height graph as a function of the line of sight communication distance. The test results show that the implementation of laser rangefinder technology has an accuracy of more than 90%.Keywords: Line of Sight, Laser Rangefinder, Near-end and far-end, Quadcopter, Obstacle
INFORMATION RETRIEVAL TUGAS AKHIR DAN PERHITUNGAN KEMIRIPAN DOKUMEN MENGACU PADA ABSTRAK MENGGUNAKAN VECTOR SPACE MODEL Putri Elfa Mas'udia; Martono Dwi Atmadja; Lis Diana Mustafa
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 8, No 1 (2017): JURNAL SIMETRIS VOLUME 8 NO 1 TAHUN 2017
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (893.444 KB) | DOI: 10.24176/simet.v8i1.1016

Abstract

Pencarian pada database yang biasa dilakukan mahasiswa hanya mampu mencari judul yang sesuai berdasarkan kata kunci yang diinputkan, misalnya, jika kata kunci yang dimasukkan adalah “sistem cerdas” maka akan ditampilkan semua dokumen yang mengandung kata “sistem cerdas” namun sistem tidak bisa mengukur mana dokumen yang paling mirip. Untuk dapat melakukan pencarian berdasar substansi  yang  paling  mirip,    terdapat  teknologi  yang  disebut  information  Text  Retrieval.  Dalam penelitian ini akan dikembangkan suatu sistem temu kembali informasi judul tugas akhir dan perhitungan kemiripan dokumen menggunakan vector space model. Sistem secara otomatis akan melakukan indexing secara offline dan temu kembali (retrieval) secara real time. Proses retrieval dimulai dengan mengambil query dari pengguna, menerapkan stop word removal sehingga dihasilkan keyword yang compaq tetapi dapatmewakili query tersebut, kemudian sistem menghitung kemiripan antarakeyword dengan daftar dokumen  yang  diwakili  oleh  term-term  di  dalam  index.  Dokumen  akan  ditampilkan  diurutkan berdasarkan dokumen yang paling mirip.Dari hasil pengujian terlihat ketika keyword “android” dimasukkan maka akan tampil empat dokumen yang diurutkan sesuai tingkat kemiripannya, yaitu docId 3 dengan tingkat kemiripan 0.9512, docId 4 dengan tingkat kemiripan 0.5020, docId 2 dengan tingkat kemiripan 0.2671, docId 8 dengan tingkat kemiripan 0.1522.
Rancang Bangun Rekaman Gerak Kendaraan pada Sepeda Motor untuk Data Investigasi Kecelakaan Lalu Lintas Berbasis Modul GSM Aziz Ariono Rahman; Ridho Hendra Yoga Perdana; Martono Dwi Atmadja
Jurnal Jaringan Telekomunikasi Vol 10 No 2 (2020): Vol 10 No 02 (2020) : Juni 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i2.64

Abstract

Motorcycle are movable objects that become public transportation needs. Motorcyclists include people from various backgrounds have experienced accidents. One of the causes of accidents is the speed. Motorcycle that has accident will fall and get injured. The need to know the cause of the accident requires investigation and analysis. Data needed to analyze traffic accidents such as vehicle operating speed and location of the accident. Required data can be obtained by utilizing infrared sensor as motorcycle speed sensor, gyroscope sensor for indicators of falling or not motorcycle and GPS to determine the coordinate points of movement motorcycle. This information is communicated using GSM module. The information is sent to the database and then displayed via Android application and the data log is stored on smartphone storage. Based on the results of tests carried out, it is known that accuracy of the speed sensor readings is 98.39% from 12 tests. The GPS test tool compared to Garmin GPS has an average difference of 3.14158 meters. The fall indicator can function properly when falls and the data can be viewed via Android application. The data is stored on smartphones and in firebase storage. The average delay test is 7,087 seconds.
Rancang Bangun Sistem Identifikasi Nomor Kendaraan pada Gerbang Tol menggunakan Metode Pengolahan Citra Ratna Suryawati M; Moh. Abdullah Anshori; Martono Dwi Atmadja
Jurnal Jaringan Telekomunikasi Vol 11 No 1 (2021): Vol 11 No 01 (2020) : Maret 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i1.68

Abstract

The toll ticket payment mechanism still uses e-toll cards by attaching e-toll cards to the reader at the toll gate. This has several drawbacks, including the driver having difficulty sticking the cards. At present, a device has emerged to access the toll road without attaching a card known as the OBU. However, this device has a pretty expensive price. Therefore, an access system in and out of toll roads is made without using a card. With this system, users only need to register license plates in a database and there are applications that will also be used for payment, and as trip monitoring. By using ultrasonic sensors and image processing methods, vehicle license plates that will enter the toll road can be detected. The test results are known to distance of the camera to the number plate to read correctly as far as 2 - 3 meter and when the distance of the camera to the number plate as far as 4 m, shows the wrong reading of the license plate. Ultrasonic sensor testing showed no failure in ten attempts. Ultrasonic sensors are used to detect the presence of objects vehicles when vehicles enter or exit the toll road
Implementasi Trunk Interkoneksi Multi Server menggunakan Singleboard Komputer Alwalid Nouvatie; Martono Dwi Atmadja; Waluyo Waluyo
Jurnal Jaringan Telekomunikasi Vol 11 No 2 (2021): Vol. 11 No 02 (2021) : Juni 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i2.75

Abstract

Voice over Internet Protocol (also called  VoIP,  IP Telephony,  Internet Telephony  or  Digital Phone)is a   technology that enables remote voice conversation through internet media. Voice data is converted into digital code and streamed over a network that delivers data packets, rather than through a regular analog telephone circuit. In VoIP  communication,users make telephone connection through a terminal in the form of a PC or a regularphone. By calling voip,  manyadvantages that can be taken in terms of costare obviously cheaper than traditional phone rates, because IP networks are global. IP Phone can be added, moved and changed. This is because  VoIP can be installed in any ethernet and IP address,unlike conventional phones that must have their own port in Sentral or  PBX  (Private branch exchange). In this study implementing connectedness between servers using single board computer   installed  elastix operating system that aims to implement  prefix for between servers and use some audio codecs. The results of telephone research using prefix and without prefix as many as 6 clients or 3 pasng calls simultaneously the highest packet loss  value in codec speex   with prefix  of 2.34%. The  highest bandwidth value used is with pcmu prefix codec with an average of 82.3 Kbps and without prefix 79.3 Kbps. Keyword :   Server, VoIP, IP Telphony, Internet telephony, Digital Phone, IP Address, PBX, Codec, Prefix.
Rancang Bangun Sistem Monitoring dan Sortir Telur Konsumsi dengan Konveyor di Pabrik Telur Karangploso El Chandra Theo; Moh. Abdullah Anshori; Martono Dwi Atmadja
Jurnal Jaringan Telekomunikasi Vol 10 No 4 (2020): Vol 10 No 04 (2020) : Desember 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i4.91

Abstract

So far, there are many manual methods used to determine the freshness of chicken eggs, for example utilizing sunlight or a flashlight to illuminate the eggs in a dark place and then look at the contents of the chicken eggs for sorting. The same process has also been carried out by breeders or grocery traders to sort chicken eggs based on their quality. The purpose of this research is to make a chicken egg detection device using a conveyor, LDR (Light Dependent Resistor) sensor, lamp, LCD (Liquid Crystal Display), servo motor, esp8266 module and Arduino Mega Microcontroller as a processor. The performance results of this device affect the condition of the egg chicken to be detected. The results of this study, this tool has an accuracy of 95% in detecting egg quality, where the LDR sensor shows an ADC value of <260 for indicators of good egg quality, while ADC values ??of more than> 26 for indicators of poor egg quality. Once the eggs are detected, the servo will direct good quality chicken eggs to the right and poor quality chicken eggs to the left. Delivery of notifications and information to the website application is done online and in real time, and a good internet network is required. The time it takes for the system to transmit data from the time the system detects an egg until it appears on the website is 20 - 50 ms, according to ITU-T standards
Analisis Kinerja Wireless Access Point Menggunakan Wifi Monitoring Tools Berbasis Raspberry Pi 3 Ganner Antero; Abdul Rasyid; Martono Dwi Atmadja
Jurnal Jaringan Telekomunikasi Vol 11 No 4 (2021): Vol 11 No 04 (2021) : Desember 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i4.245

Abstract

Mini computers are now advanced enough to be used in various fields. One of the mini computers that used is the Raspberry Pi 3. The Raspberry Pi 3 is a mini computer that has a feature for a wireless LAN. The wireless LAN feature on a mini computer can be used as a Wireless Access Point. The Raspberry Pi 3 can be an alternative to Wireless Access Point. However, mini computers have different capabilities with Wireless Access Points in general because they have different specifications. The purpose of this study was to determine the performance of the Raspberry Pi 3 based Wireless Access Point. The Raspberry Pi 3 is connected to a laptop that already connected to the internet via a LAN cable . Raspberry Pi 3 is configured as a Wireless Access Point (WAP) and programmed for data retrieval and monitoring in the form of traffic and user information displayed in a web display. In this study, the Raspberry Pi 3 was tested as a Wireless Access Point. The ability of the Raspberry Pi 3 as a Wireless Access Point is greatly influenced by the traffic carried out by the user. According to the test results, the Raspberry Pi 3 as a Wireless Access Point has a maximum limit of 13 users with high traffic loads, 17 users with medium loads and 27 with low loads. This shows that the Raspberry Pi 3 is worthy of being used as a Wireless Access point on a small scale.