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All Journal PROCEEDING IC-ITECHS 2014 Jurnal Jaringan Telekomunikasi Jurnal ELTEK
Yoyok Heru Prasetyo Isnomo
Politeknik Negeri Malang
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering

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Predict of Lost Time at Traffict Lights Intersection Road Using Image Processing Yoyok Heru Prasetyo Isnomo
IC-ITECHS Vol 1 (2014): Prosiding IC-ITECHS 2014
Publisher : IC-ITECHS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1503.027 KB)

Abstract

There are three lamps in traffic lights, green, red, and amber. The amber lamp is a sign for driver as preparing to move when they are stopping because the red lamp turn on, and as emptying vehicles when the phase of traffic lights turn on green, and the moment is called as lost time. Generally, the amber time is regulated manualyl and constant, but the fact that lost time is not constant. By using CCTV IP IR we can determine speed of vehicle, so we can calculate lost time in real time. The sequence of method is used in this paper to predict and determine speed of vehicle : formulation determination to convert distance on image into actual distance in unit meter; pattern recognition of vehicles, in this research using previous research; time depth determination of the first capturing traffic until the second capturing; speed calculation of each vehicles types, and average of vehicles speed; calculation of lost time. The result of the algorithm aplying show that system can predict the speed of the vehicle, by using velocity formulation the system can determine lost time in automatically.
Rancang Bangun Sistem Rekap Nilai Mahasiswa Prodi Jaringan Telekomunikasi Digital Politeknik Negeri Malang Menggunakan Jaringan Fiber Optik Berbasis Website Jurusan Teknik Elektro, Program Studi Jaringan Telekomunikasi Digital, Politeknik Negeri Malang Yudhistira Hendra Wijaya; M. Nanak Zakaria; Yoyok Heru Prasetyo Isnomo
Jurnal Jaringan Telekomunikasi Vol 11 No 3 (2021): Vol. 11 No 03 (2021) : September 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i3.6

Abstract

In undergoing the lecture process, one of the important elements is the student and the student's value. In the study program of Digital Telecommunication Network, Malang State Polytechnic itself is currently still using the data processing systems of student grades on standard computer worksheets without any special software. In addition, the increasing data from year to year will make it difficult in the process of access and search, where at this time Information technology is required to be faster and more accessible. In this study the method used in the student value recap is by creating a website. Then the website is uploaded on the server and uses fiber optic transmission media. The results of testing the system's website functionality could run according to planning. In testing the performance of website using wireless transmission media and optical fiber produced the best value of delay, packet loss, and throughput when using optical fiber networks, with 0.113s delay results for wireless transmission media and 0.004s with transmission media using optical fiber at 9 users accessing the website simultaneously. For the throughput value obtained was 48.229 kbps with wireless transmission media and 956.347 kbps with fiber optic transmission media. From this results, the more number of users obtained, the better the delay and throughput. And the packet loss parameters obtained 10.457% with wireless transmission media and 0.667% with optical fiber transmission media when accessed by 9 users
Implementasi Transmisi Sinyal TV pada Media Transmisi Fiber Optik Singlemode Nadhia Syafira Arifianti; Yoyok Heru Prasetyo Isnomo; Koesmarijanto Koesmarijanto
Jurnal Jaringan Telekomunikasi Vol 10 No 3 (2020): Vol 10 No 03 (2020) : September 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i3.12

Abstract

The results of TV service output using the Hybrid Fiber Coaxial system obtained a signal quality of 74% with a total of 49 channels. The attenuation with input 1 parabolic antenna receiver decoder using 200 cm fiber optic obtained a loss of 1.79 dB and at length of 2 km the loss is 8.91 dB. Whereas with the input of 2 decoder, a parabolic antenna receiver using 200 cm fiber optic, the value of losses is 1.93 dB and at 2 km the loss is 9.83 dB. The average deviation of RGB errors in the largest television image output results is Green by 0.226% and the lowest error deviation is Red at 0.148%. The effect of audio and video output before adding fiber optic devices is obtained, the audio output voltage value is 1.792 V and the video output voltage value is 2.591 V. After adding the fiber optic device the value of the output voltage with 1 television output and 1 decoder receiver at a length of 200 cm audio is 1.144 V and video is 1.167 V while at a length of 2 km the audio is 0.834 V and the video is 1.005 V.
Analisis Perubahan Suhu Terhadap Panjang Gelombang Pada Media Fiber Optik Berstruktur Singlemode-Multimode Muhammad Adi Riswanto; Mochammad Junus; Yoyok Heru Prasetyo Isnomo
Jurnal Jaringan Telekomunikasi Vol 10 No 3 (2020): Vol 10 No 03 (2020) : September 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i3.103

Abstract

The increase in temperature on optical fiber results in an increase in the refractive index and Numerical Aperture, resulting in spread and absorption losses in the optical fiber. So it is considered necessary to discuss the effect of temperature changes on wave length in axially connected Singlemode-Multimode fiber optic media. Optical fiber connected to OSA is heated using a heater to show the wavelength value, before converted into color. Then convert it into CCT so as to produce a temperature value in kelvins. In this study, singlemode, multimode, singlemode-multimode fiber are used. The connection to each optical fiber and light source uses a Fusion Splicer and Visual Fault Locator with a wavelength of 660 nm and 680 nm, respectively. Results show that the higher the temperature, the farther the wavelength shift. The singlemode-multimode cable has the farthest shift value of 8.44 nm at 660 nm and 9.3 nm at 680 nm. Singlemode-multimode cable has the best measurement accuracy value. Because at a wavelength of 660 nm, the difference between the temperature values ??measured on the thermocouple and those calculated on the matlab has an average percentage of 0.54%. Meanwhile, at a wavelength of 680 nm it is 0.63%.
Pengaruh Perubahan Suhu terhadap Nilai Panjang Gelombang Fiber Optik yang Difungsikan Sebagai Sensor Suhu Alna Destra Shafira; Yoyok Heru Prasetyo Isnomo; Azam Muzakhim Imamuddin
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.v11i1.104

Abstract

In this study we can determine the effect of temperature on wavelength and frequency on fiber optic media by using a splitter by looking at the measured wavelengths when the optical fiber is heated using an aluminum intermediate as a heat sensor. With temperatures to be used ranging from 270?C to 400?C. The measurement was carried out using an Optical Spectrum Analyzer (OSA) device. From the temperature variations given, the conclusion is that the greater the temperature given, the farther the wavelength shift and the smaller the resulting frequency. The wavelength produced on the fiber optic splitter cable 1 to the fiber optic splitter cable 4 has almost the same wavelength value starting from a temperature of 270 ° C- 400 ° C. the difference occurs when the cable before the splitter and after the seplitter. The validity level in each splitter has a different persesn value such as the splitter has a validity value of 99.80%, splitter 2 has a validity of 99.72%, Splitter 3 has a validity of 99.72% and splitter 4 has a validity of 99.70%
Desain Sensor Tingkat Kekeruhan Air Menggunakan Bahan Fiber Optik Silviana Dewi Masitoh; Yoyok Heru Prasetyo Isnomo; Lis Diana Mustafa
Jurnal Jaringan Telekomunikasi Vol 11 No 3 (2021): Vol. 11 No 03 (2021) : September 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i3.113

Abstract

The importance of knowing the level of turbidity of water, especially in the activity of using drinking water in the form of clean water, requires a tool to be used to measure the level of turbidity of water. The use of optical fiber to determine the level of turbidity of water from the value of power loss is expected to be a solution to determine the level of turbidity of water before use. The research was conducted by measuring the value of power loss at the two ends of singlemode and multimode optical fiber connected to a fiber coupler, then measured using a Handheld Light Source and Optical Power Meter. The fiber coupler is modified by giving a 1mm hole at the center point to pass the tested water. Measurements were carried out with the condition of two optical ends without distance, the optical end was spaced 1mm apart, the optical end was spaced 1mm through clear water and water with a clouding agent in the form of ink. The largest measurement loss was obtained in singlemode optical fiber with a yellow color effect of 1.9dB. In multimode optical fiber, the yellow color cloud is 2.81dB. The results of the graph and calculation of power loss show the effect of adding an ink clouding agent to the measured power in the OPM. Based on the measurement results of changes in power loss that are not constant for each addition of 5 ml of turbidity, the sensor designed has low sensitivity.
Implementation of Two-Way Voice and Text Communication System Using Fiber Optic Media Hendro Darmono; Simon Calvin Pribadi; Yoyok Heru Prasetyo Isnomo
Jurnal Jaringan Telekomunikasi Vol 12 No 1 (2022): Vol. 12 No. 01 (2022) : March 2022
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v12i1.257

Abstract

In this technology age, people's need for communication systems is growing. In various places and conditions, communication must be maintained to meet various needs. One of the solutions required in these circumstances is an optical fiber communication system. Fiber optic cable is a light-based data transmission technique. The advantages of optical transmission include the fact that the light spectrum does not spread like radio frequencies, making it impossible to intercept, the fact that it propagates at a very high speed, allowing it to go very large distances, and the ease with which it may be installed. To tackle this problem, we proposed to innovate by realizing and developing a two-way voice and text communication system using fiber optic cable media. The voice and text communication system created and deployed in this study is based on an Android application. This communication system does not require a server and internet network. Only Android smartphones, access points, fiber media converters, and fiber optic cables are required. The greatest throughput value measured by the system is 2708 bytes/second, while the lowest is 1020 bytes/second. The longest delay is 2.314 seconds, while the shortest is 1.99 seconds. In terms of packet loss, the value is 0%.
ANTENA CETAK FRAKTAL KOCH UNTUK APLIKASI WIRELESS FIDELITY 2.4 GHz Hendro Darmono; Koesmaryanto Koesmaryanto; Yoyok Heru Prasetyo Isnomo
JURNAL ELTEK Vol 15 No 2 (2017): ELTEK Vol 15 No 2
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.549 KB)

Abstract

Tujuan dari penelitian ini adalah merancang bentuk peradiasi antena dengan ukuran lebih kecil yang mampu menghasilkan frekuensi resonansi 2.4 GHz. Antena dibangun pada PCB double layer FR 4, Antena Yagi dirancang untuk frekuensi 2.442 GHz dengan elemen parasitik pengarah berjimlah 5. Pengujian oleh perangkat lunak untuk masing-masing elemen antana Yagi yang dimulai dari driven dan dilanjutkan dengan pemantul serta ditindaklanjuti dengan pengujian dengan pengarah mulai satu pengarah sampai lima pengarah.Hasil menujukkan antenna bekerja pada frekuensi resonansi 2.442 GHz dan mampu bekerja pada rentang frekuensi 2.4 GHz sampai dengan frekuensi 2.5 GHz. Gain maksimum sebesar 5 dBi. The purpose of this study is to design a smaller size antenna radiating form that can produce a 2.4 GHz resonant frequency. The antenna is built on a double layer FR 4 PCB The Yagi antenna is designed for the 2.442 GHz frequency with a direct parasitic element in 5. Test by software for each antana Yagi element that starts from driven and continues with a reflector and is followed up by testing with the driver starting from one guide to five guides The results show that the antenna works at the resonance frequency of 2.442 GHz and is able to work in the 2.4 GHz frequency range up to 2.5 GHz frequency. The maximum gain is 5 dBi.
Co-Authors Alna Destra Shafira Azam Muzakhim Imamuddin hendro darmono Koesmarijanto Koesmarijanto Koesmaryanto Koesmaryanto Lis Diana Mustafa M. Nanak Zakaria Mochammad Junus Muhammad Adi Riswanto Nadhia Syafira Arifianti Silviana Dewi Masitoh Simon Calvin Pribadi Yudhistira Hendra Wijaya