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Jurnal ULTIMA Computing

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Published by Universitas Multimedia Nusantara

ISSN : 23553286 EISSN : 25494007 DOI : -

Core Subject : Science, Engineering,

Computer Science & IT Control & Systems Engineering Engineering

urnal ULTIMA Computing merupakan Jurnal Program Studi Sistem Komputer Universitas Multimedia Nusantara yang menyajikan artikel-artikel penelitian ilmiah dalam bidang Sistem Komputer serta isu-isu teoritis dan praktis yang terkini, mencakup komputasi, organisasi dan arsitektur komputer, programming, embedded system, sistem operasi, jaringan dan internet, integrasi sistem, serta topik lainnya di bidang Sistem Komputer. Jurnal ULTIMA Computing terbit secara berkala dua kali dalam setahun(Juni dan Desember) dan dikelola oleh Program Studi Sistem Komputer Universitas Multimedia Nusantara bekerjasama dengan UMN Press.

Arjuna Subject : -

Articles 150 Documents

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Study: Pengukuran Saturasi Oksigen dengan Konsumer Grade RGB Kamera Aminuddin Rizal
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Advancement on camera technology, image processing, and signal processing algorithm is widening the usage of camera into biomedical measurement. Mostly are used for pulse rate (PR) measurement to monitor human’s heart condition. In this paper, we studied the prospect of a consumer grade RGB camera as replacement for contact-based pulse oximeter (measure pulse rate and blood saturation oxygen). However, in this study we more focus on blood saturation oxygen measurement which needs more complex principle and calculation compared to PR measurement. We use both time and frequency domain calculation to know whether one or both of them have better achievement. The results reveal the summary performance from the usage of a consumer-grade RGB camera in saturation oxygen measurement.

Rancang Bangun Aplikasi Face Tracking dan Filter Berdasarkan Raut Wajah Menggunakan Algoritma Fisher-Yates Berbasis iOS Malik Abdul Ghani; Andre Rusli; Ni Made Satvika Iswari
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Expressions of facial expressions in addition to providing important emotional indicators, are very important objects in our daily lives too. Real-time video processing on mobile devices is a hot topic and has a very broad application. Photos that have used the filter have 21% more possibilities to be seen and 45% more likely to be commented on by photo consumers. The use of the Fisher-Yates algorithm is used as a filter scrambler for each facial expression emotion. The application is made for the iOS operating system with the Swift programming language that utilizes the Core ML and Vision framework. Custom Vision is used as a tool for creating and training models. In making a model, this study uses a dataset from Cohn-Kanade AU-Coded Facial Expression Database and Karolinska Directed Emotional Faces. Custom Vision can provide performance result training and provide precision and recall values for data that has been trained. The facial expression match with the model is determined by the confidence level value. The results of trials with Hedonic Motivation System Adoption Model method produce a percentage of pleasure in using the application (joy) of 79.39% of the users agree that the application provides joy.

ekspresi Mengidentifikasi Mood Mahasiswa Berdasarkan Ekspresi Wajah dengan Menggunakan Discrete Wavelet Transform dan Fuzzy K-Nearest Neighbor Nur Inzani Reski Amalia; Jayanti Yusmah Sari
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Mood is a temporary emotional state. Mood usually has positive or negative quality values. Emotional intelligence has a role of more than 80% in achieving life success and is one of the factors that influence the students' capture power in the lecture process. By knowing the emotions of students, we can help capture students' ability during the lecture process, and the need for a system that can identify emotions that are formed during lectures.This system is built using the Discrete Wavelet Transform which transforms the image into 4 sub-images. The image of Discrete Wavelet Transform results looks rough or forms a face that can distinguish student expressions. The results of the Discrete Wavelet Transform image processing are classified using Fuzzy K-nearest neighbor. Classification is divided into three expressions, namely: Angry, Happy and Sad with accuracy of 77.49%

KAJIAN LITERATUR : PERBANDINGAN SENSOR DALAM MENSORTIR MATERIAL BERBAHAN METAL Hira Meidia; Sandy Prawira
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Dalam industri manufaktur banyak sekali digunakan komponen sensor yang berfungsi untuk mensortir barang sesuai kriteria yang dibutuhkan untuk mensortir material berbahan metal. Pada artikel ini, metode yang digunakan dalam mensortir material berbahan metal dan non-metal dibandingkan untuk mempelajari kelebihan metode-metode tersebut. Metode yang akan dibandingkan yaitu metode dengan menggunakan sensor proximity induktif, arus eddy, dan dual energy x-ray transmission. Pada sensor proximity induktif hanya dapat dipicu oleh material berbahan metal yang lewat didepannya. Sedangkan untuk metode arus eddy, pada ujung rotor konveyor belt ditanami magnet permamen sehingga menghasilkan arus yang dapat memisahkan bahan metal dan non-metal ketika rotor tersebut berputar. Pada metode dual energy x-ray transmission, jenis material benda yang lewat berdasarkan kepadatan dan warna akan terdeteksi oleh x-ray.

RANCANG BANGUN MEKANISME QUALITY OF SERVICE TERHADAP PROTOKOL RTP DAN SIP PADA ARSITEKTUR OPENFLOW Richard Alvianto; Samuel Hutagalung; Franciscus Ati Halim
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Pada beberapa tahun terakhir, angka dari pengguna Voice Over Internet Protocol (VoIP) terus meningkat, dengan teknologi VoIP yang berkomunikasi melalui satu medium dalam jaringan. Hal ini tentu menimbulkan beberapa dampak terhadap VoIP seperti penggunaan bandwidth tidak terbagi dengan rata sesuai dengan kebutuhan masing-masing paket, dengan tuntutan VoIP yang membutuhkan delay, jitter, packet loss yang seminimal mungkin, untuk menjamin kualitas suara dan memberikan kenyamanan kepada pengguna VoIP. Pada penelitian ini dengan mekanisme Quality of Service (QoS) untuk memberikan prioritas terhadap protokol Real-time Transport Protocol (RTP) dan Session Initiation Protocol (SIP) dalam jaringan dirancang supaya kualitas VoIP tetap terjaga dan menghindari terjadi kemacetan terhadap paket RTP maupun SIP dalam proses antrian dalam jaringan. Analisis dalam penelitian ini dilakukan implementasikan pada emulator mininet dan diuji dengan beberapa parameter QoS, pada skenario mengujian jaringan tersebut dialiri paket dengan kecepatan 100 Mbps untuk menciptakan kondisi trafik yang padat dalam jaringan tersebut dan secara bersamaan dialiri juga trafik RTP, SIP dan data yang merupakan paket yang akan diukur nilai dari delay, jitter, packet loss. Hasil pengukuran dalam jaringan setelah diterapkan QoS menunjukan nilai dari delay, jitter, packet loss dapat berkurang dan juga memenuhi standar ITU-T G.1010 sehingga trafik VoIP dapat terjaga stabilitas dalam jaringan dan pengguna juga merasa nyaman, sedangkan pada kondisi jaringan tidak menerapkan QoS, trafik VoIP memperoleh nilai delay, jitter, packet loss yang cukup tinggi dan juga tidak memenuhi standar dari ITU-T G.1010 menyebabkan pengguna VoIP akan terganggu dengan keterlambatan dan terbuang paket VoIP yang membuat suara yang hilang dalam sebuah percakapan.

Kajian Literatur –Penggunaan Sensor Waterflow pada Proses Pencampuran Cairan Dalam Industri Dimas Farid Arief Putra; Stefanus Stefanus
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Programmable Logic Controller (PLC) merupakan alat yang digunakan sebagai pengendali sistem pencampuran cairan yang terdiri dari sensor, dan aktuator. Sensor waterflow digunakan di dalam sistem ini karena sensor tersebut memiliki keluaran di dalam liter per jam sehingga lebih memudahkan proses komputasi PLC dalam pengaturan kran elektrik sebagai aktuator.

A Quick Walkthrough untuk Pengenalan Teknologi IC Aminuddin Rizal
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Technology brought by human race has been evolving from known stone age, axe age, wood age and until we now reach the point where semiconductor or integrated circuit (IC) technology support human life. Its implicitly important to us to know, how current technology developed and what possible next technology look like. In this paper, we emphasize the quick walkthrough how our scientist and practical engineer made IC. Furthermore, a cheat sheet provided for a very basic equation we use when we made IC. Experiment on this research performed by using open source software which allow others to redo the same experiment. The outcome of this paper is well-structured introduction about IC technology and global discussion regarding next generation technology.

Analisis Data ADS-B untuk Menentukan Probability of Target Report pada Sistem A-SMGCS I Made Astawa; I Putu Ananta Yogiswara; Tahar Agastani; Afrias Sarotama
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

A-SMGCS is an airport system that is used to improve the efficiency of using runways, apron and taxiways by maximizing runway capacities in all situations and weather while maintaining the required level of security. One of the parameters that becomes a requirement in the A-SMGCS system is the Probabillity of Target Report (PTR) whose value must be greater or equal to 95% in the area maneuver with update rate of the data one second [1]. Automatic Dependent SurveillanceBroadcast (ADS-B) is one of the cooperative sensors in the A-SMGCS system. The ADS-B sensor is a receiver that is used to capture ADS-B data from aircraft or vehicles equipped with ADS-B transmitters. The amount of ADSB data received by the ADS-B receiver and is needed for the A-SMGCS system is one of the factors that determine the Probability of Target Report (PTR). This paper will test three ADS-B receivers which will be selected for use as a cooperative sensor in the next A-SMGCS development. From the results of analysis and retrieval of data obtained by Radarcape ADS-B receiver more suitable for the development of the A-SMGCS system.

Metode Deteksi ‘Potential Security Threats’ Pada ADS-B Data dengan Memonitor EM Emisi Radiasi pada Jaringan Ethernet Reza Septiawan; I Made Astawa; Arief Rufiyanto; Tahar Agastani
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 1 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Precision, Navigation, and Timing (PNT) system based on Global Navigation Satellite System (GNSS) becomes significant in the air traffic management, especially in the use of Automatic Dependent Surveillance Broadcast system (ADS-B) for air traffic monitoring. Therefore the integrity of GNSS is significant to provide a reliable data necessary for ADS-B. GNSS Interference due to intentional or unintentional surrounding signal source may decrease the integrity of GNSS signal and therefore may result in the in-accurate position data of ADS-B message. ADS-B message itself is also vulnerable from potential security threats in their network. This paper proposed a methodology to detect potential security threats of ADS-B network system for both GNSS signal and ADS-B data by measuring and monitoring the electromagnetic radiated emission from ethernet cable IPv4 Cat5.

Sistem Pendukung Keputusan Penilaian Kinerja Karyawan PT. Injep Inti Cemerlang Dengan Metode AHP dan TOPSIS Achmad Baroqah Pohan; Sofian Wira Hadi; Suparni Suparni
Ultima Computing : Jurnal Sistem Komputer Vol 11 No 2 (2019): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

During this time the performance appraisal of PT. Injep Inti Cemerlang has not been implemented optimally, especially in assessing employee performance. So far, performance appraisal is only determined from the results of its work, there are no clear assessment criteria. For this reason, a decision support system is needed to help find the best alternative for the selection of employees. in this study a decision support system for employee performance appraisal will be developed based on Attitude, Responsibility, Attendance, Discipline and Cooperation. This study aims to design a decision support system for employee performance appraisal using data collection methods by observation, interviews and giving questionnaires to employees of PT. Injep Inti Cemerlang. The data collected is carried out the process of analyzing data and looking for weighting values using the AHP method and for ranking using the TOPSIS method, where each criterion is in this case. assessment factors and alternatives in this case employees are compared with criteria that have been weighted through the process of calculating the ahp and topsis method starting from giving the weighting of criteria by calculating with Ms.Excel and calculating with Expert Choice software. The results have been obtained from weighting the next ranking by the TOPSIS method. thus providing a value output that results in a system that assesses employees. This decision support system helps assess the performance of each employee of PT. Injep Inti Cemerlang in determining the employee who has the best performance

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Contact Name
Ni Made Satvika Iswari

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satvika@umn.ac.id

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Journal Mail Official
ultimacomputing@umn.ac.id

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Kota tangerang,

Banten

INDONESIA