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All Journal International Journal of Electrical and Computer Engineering TEKNIK Transmisi: Jurnal Ilmiah Teknik Elektro JURNAL SISTEM KOMPUTER Journal of International Relations Studies Jurnal Sistem Komputer Proceedings of KNASTIK Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal Teknik Elektro Scientific Journal of Informatics CESS (Journal of Computer Engineering, System and Science) Khazanah Informatika: Jurnal Ilmu Komputer dan Informatika Jurnal Informatika Upgris JOIN (Jurnal Online Informatika) Jurnal Teknologi dan Sistem Komputer Techne : Jurnal Ilmiah Elektroteknika TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Indonesian Journal of Electrical Engineering and Computer Science Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Nasional Teknik Elektro dan Teknologi Informasi Techno Jurnal Rekayasa elektrika Prosiding Seminar Nasional Unimus

Eko Didik Widianto

Department Of Computer Engineering, Universitas Diponegoro

Author-ID : 415446

Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Nursing Public Health

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Layanan Infrastruktur Komputasi Multitenant dengan OpenStack di Lingkungan MaaS Joan Ricard Panggabean; Agung Budi Prasetijo; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 5, Issue 4, Year 2017 (October 2017)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

The growth of high-quality computing needs triggers the development of infrastructure that requires huge costs and resources. This research applied OpenStack in Metal as a Service (MaaS) environment to provide multitenant infrastructure services in the form of virtual machines (IaaS). The capacity of this IaaS system can be configured based on the needs of the computing resources (CPUs, memory, storage, and network interfaces). Users within the tenant can request infrastructure services as their needs without requiring human interaction with each service provider.

Robot Beroda Perambat Dinding Berbasis Mikrokontroler ATmega 2560 Dilengkapi Kendali Nirkabel dan Penghindar Rintangan Eko Didik Widianto; Ufan Alfianto; R. Rizal Isnanto
Jurnal Teknologi dan Sistem Komputer Volume 5, Issue 2, Year 2017 (April 2017)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

This research developed a mobile wall climbing robot prototype using 4 DC motors as its driver and a suction tube. It can avoid obstacles. This robot uses Arduino Mega 2560 as its controller board. The robot's weight is 747 grams. The suction tube produces a suction force of 7.815N capable of holding the robot load in a stall vertical position using 12V of voltage. The robot able to crawl down and horizontal, but still can not climb vertically. The robot is able to receive a command of motion manually from a 2.4GHz wireless joystick. In automatic mode, the robot can avoid obstacles using the HC-SR04 proximity sensor. This research also shows the relationship between suction force and the given voltage of DC brushless motor and its throttle value.

Analisis Quality of Service (QoS) Jaringan Telekomunikasi High-Speed Downlink Packet Access (HSDPA) pada Teknologi 3.5G Mey Fenny Wati Simanjuntak; Oky Dwi Nurhayati; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 4, Nomor 1, Tahun 2016 (Januari 2016)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Sejak layanan teknologi 3G pertama kali diperkenalkan, permintaan akan layanan berbasis paket data dari tahun ke tahun mengalami peningkatan yang pesat. Menanggapi hal tersebut, para penyedian jaringan telekomunikasi terus berusaha untuk meningkatkan kemampuan jaringannya. Salah satu solusinya menerapkan teknologi High-Speed Downlink Packet Access yang direkomendasikan oleh 3GPP Release 5. Penelitian ini dikhususkan untuk menganalisis Quality of Service jaringan telekomunikasi High-Speed Downlink Packet Access di Kecamatan Tembalang Kota Semarang. Analisis Quality of Service jaringan telekomunikasi High-Speed Downlink Packet Access pada penelitian ini bertujuan untuk memberikan gambaran kualitas jaringan telekomunikasi High-Speed Downlink Packet Access dari sisi bandwidth, throughput, packet loss dan delay. Metode penelitian yang dibahas dalam penelitian ini yaitu penelitian kualitatif observatif, dimana akan dilakukan pengamatan tentang bagaimana QoS jaringan telekomunikasi High-Speed Downlink Packet Access pada teknologi 3.5G di Kecamatan Tembalang Kota Semarang. Proses pengamatan dalam menganalisis Quality of Service jaringan telekomunikasi High-Speed Downlink Packet Access di Kecamatan Tembalang Kota Semarang berdasarkan 4 parameter diantaranya bandwidth, throughput, packet loss dan delay. Aplikasi yang digunakan yaitu monitoring application Elnus Bandwidth Meter dan Axence NetTools Professional 4.0. Selain itu, Quality of Service jaringan telekomunikasi High- Speed Downlink Packet Access di Kecamatan Tembalang Kota Semarang diamati berdasarkan waktu yaitu harian, mingguan dan bulanan.

Implementasi Cloud Storage Menggunakan OwnCloud yang High-Availability Ikhwan Ar-Razy; Rinta Kridalukmana; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 4, Nomor 2, Tahun 2016 (April 2016)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Implementation of practicum courses in Department of Computer Engineering Diponegoro University has some drawbacks, one of them is a lot of lab assistant and the practitioner experiencing difficulties in terms of archiving. One solution to solve the problem is implementing a shared file storage system that is easy and can be accessed by both practitioners or lab assistants. The purpose of this research is to build a cloud-based storage systems that are reliable to preventing crash damage hardware and high availability. The purpose of this research is achieved by designing the appropriate methodology. The result of this research is a storage system that is on the server side by using virtualization and data replication (DRBD) as a storage method. The system is composed of two physical servers and one virtual server. Physical servers are using Proxmox VE as operating system and virtual server is using Ubuntu Server as operating system. OwnCloud applications and files are stored in the virtual server. File storage system has several major functions, which are: upload, download, user management, remove, and restore. The functions are executed through web pages, desktop application and Android application.

Perancangan Protokol Komunikasi untuk JSN (Jaringan Sensor Nirkabel) pada Kampus Hijau Nurazizah Nurazizah; Oky Dwi Nurhayati; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 4, Nomor 2, Tahun 2016 (April 2016)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Environmental conditions in a large area often requires monitoring. For example, in the case of greenhouse used for experimental research cultivation, fertilization experiment, experiment plant resistance, tissue culture experiments, experimental planting of crops in the off-season, the necessary equipment to monitor and control the environmental conditions in order to suit the characteristics of the environment is needed. The size of area to be monitored, making the need for the spread of monitoring equipment at some point so that monitoring environmental conditions can include all the desired area. This is the basis for the design of communication protocols for WSN (wireless sensor networks) on a green campus. The system consists of hardware that is assembled to the process of measuring PM2.5, CO, NO2, HC, light intensity, temperature, and humidity. The system is divided into several sections, hereinafter referred to node. Node on this system can be divided into two functions, namely a sensor node and coordinator node. There are two sensor nodes that will work for data collection in a separate area and sends the data to the coordinator node. Communication between nodes is done using nRF905 module. The design of communication protocols that are designed to connect between the coordinator node to sensor node is able to run well. It makes the system capable of monitoring temperature and humidity via a web service, so that can know the condition of PM2.5, CO, NO2, HC, the intensity of light, temperature and humidity at some point in the range of more than 100 meters.

Sistem Monitoring Digital Penggunaan dan Kualitas Kekeruhan Air PDAM Berbasis Mikrokontroler ATMega328 Menggunakan Sensor Aliran Air dan Sensor Fotodiode Muhammad Kautsar; R. Rizal Isnanto; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 3, Nomor 1, Tahun 2015 (Januari 2015)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Water became one of the staples in the community who are taking a very important role in life. Dependence of human life should not need to denied of water presence. Many activities of human dependent of water such as drinking, washing, bathing etc. In the city, PDAM as a service business into regional water supply solution to deliver water in the houses. Currently, the use of an analog water meter is ineffective for the custumer to be able to monitor the use of water consumption and bill to be paid. Not only that, sometimes the quality of water delivered by the service is not good, it can be seen during the rainy season, which causes the water to become turbid. Today’s technology much shift something analog to digital which is better appearence and easier operation. Thus in this study designed a digital monitoring system using based on microcontroller ATMega 328 by measuring the water discharge from the tube’s connection. For measuring the water usage using the water flow sensor that uses the principle of the hall effect. At the same tool can detect water turbidity problems using photodiode sensor which have working principle by intensity of light received from sample reservoir. The output of this system contains information on water discharge, volume of water in cubic meter also is added to the unit of price. Result of testing the accuracy sensor water flow reached 98,8 % while sensor photodiode had scale measurement water turbidity reacehed 0 - 173 NTU.

Perancangan dan Penerapan Sistem Informasi Kenotariatan Menggunakan Bahasa Pemrograman PHP Muhammad Ichsan Adhiim; Adian Fatchur Rochim; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 3, Nomor 4, Tahun 2015 (Oktober 2015)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Notary is a judicial officer who is authorized to make an authentic deed and agreements of individuals, institutions, or land properties. In the daily work, Notary records customer data and work data. However, the result of recording data manually makes Notary overwhelmed in data processing, causing task completion time becomes longer. The Notary Information System is designed using Waterfall methodology using PHP programming language, Code Igniter framework, and MySQL database. Analysis of system requirements is is conducted by interviewing the Notary, so the design is appropriate and well targeted. This research produces an information system that is capable of recording type of work data, customer data, land, property data, employment data, income and outcome data, and data revenue recapitulation in the form of text and graphics data. This information system design also has an additional functions that notifies the clients about the completed work via E-mail and SMS. This information system design was tested using the black box method, and the results of these tests indicate that all functions in the system have been running well.

Perancangan Aplikasi Permainan Multiplayer Gobak Sodor Berbasis Flash Di Lingkup Jaringan Lokal Bellia Dwi Cahya Putri; Rinta Kridalukmana; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 4, Nomor 2, Tahun 2016 (April 2016)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Traditional games wa played by people from ancient time. As the culture of Indonesia which has high value of togetherness, people play ittogether with a group. From all kind of traditional games in Indonesia, there is one called Gobak Sodor that well known as traditional games from Central Java. The game of Gobak Sodor made by Adobe Flash and ActionScript as programming language has two option to play the game as singleplayer and multiplayer. Multiplayer game need a server to connected both players which used smartfoxserver 2x as the server. The game developed by adopting MDLC method with four stage such as conceptualization, design process, requirements planning, and construction. The result of this scientific writing is an application of traditional game named Gobak Sodor as the media to educate people about one of traditional game in Indonesia.

Sistem Pengamanan Pintu Rumah Otomatis via SMS Berbasis Mikrokontroller ATMega328P Muhammad Ridwan Asad; Oky Dwi Nurhayati; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 3, Nomor 1, Tahun 2015 (Januari 2015)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

In this article, an automatic door security was designed used SMS, which serves as security for a microcontroller based door. This system was designed to facilitate the home user to lock the door and notice the condition of the house when the doors were left empty. The medium used is a phone by using SMS facility. This device consists of a sensor that is a “push button” that serves as input to inform the condition of the door to the microcontroller, microcontroller used is ATmega328P. Then Wavecom GSM Modem M1306B which serves as the sender and recipient SMS, using a solenoid to lock the door, and use the buzzer for alarm. The security system has been built with the working principles if there are people who want to try to enter and then numbers uninitialized on the microcontroller, the system will give a warning SMS notification to the user that "THERE ARE TRYING SIGN", and when the system is forcibly opened, the system will activate alarm as a warning sign and send SMS alert notification text of "alarm" to the phone number programmed into microcontroller.

Rancang Bangun Sistem Pendukung Keputusan Penentuan Indeks Lingkungan pada Jaringan Sensor Nirkabel Muhammad Naufal Prasetyo; Oky Dwi Nurhayati; Eko Didik Widianto
Jurnal Teknologi dan Sistem Komputer Volume 4, Nomor 2, Tahun 2016 (April 2016)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Nowadays, the major environmental issues that faced by campus stakeholders is climate change mitigation and campus sustainability. Universities of the world, including in Indonesia, efforts to reduce carbon emissions, manage and improve the development of a sustainable campus. The need for the information of environmental data in the form of gas concentration CO, NO2, particulate matter, temperature, humidity and luminous intensity accurately and real-time using a wireless sensor network. This data is processed using a decision support system to determine the environmental index. This research aims to design a decision support system to determine environmental index on wireless sensor networks. This decision support system is developed using PHP programming language, CodeIgniter framework and MySQL database. The method that used is Simple Additive Weighting (SAW) based on the order of several calculation requirements, the calculation of daily values, the daily scores, geomean of daily scores and weight for each parameter, which in finally is used to determine the environmental index. The results of this research is to show the quality of the environmental index, the graph visualization of environmental index, data for each parameter and the solutions based on index so that it can provide environment information for civitas academica and accurate feedback for decision makers or campus policy to formulate and evaluate policies in a sustainable campus development.

Co-Authors Achmad Furqon Adi, Yudi Restu Adian Fatchur Rochim Afrina Ayu Insani Agung Budi Prasetijo Agung Budi Prasetijo, Agung Budi Ahmad Herdinal Muttaqin Ajeng Kartika Nugraheni Syafitri Ajub Ajulian Zahra Macrina Al Arthur Faizal Alan Prasetyo Rantelino Anggit Perdana Anggoro Mukti Ari Wibawa Budi Santosa Aris Sugiharto Aulia Medisina Ramadhan Azis Masruhan Bearly Ananta Firdaus Bellia Dwi Cahya Putri Bimo Ananto Pamungkas Budi Cahyo Suryo Putro Claudi Priambodo Antodi Dania Eridani Dania Eridani Deryan Gelrandy Devianto, Dadik Dite Ardian Dolly Simon Kristian Dwi Intan Af'idah Dyakso Anindito Nugroho Eko Setyo Purnomo Fajar Zuhroni Fatah Mumtaz Al'Ala Faza Abdani Auni Robbi Galuh Boy Hertantyo Gayuh Nurul Huda Gigih Marisna Gilang Dhimas Yurista Nugraha Hefmi Fauzan Imron Hendy Cahya Lesmana Herrizal Muhammad Wijaya Hilal Afrih Juhad Hutami Laksmi Kastanti Ike Pertiwi Ike Pertiwi Windasari Ikhwan Ar-Razy Imaduddin Amrullah Muslim Indasari, Ike Pratiwi Indra Aditia Indrasto, Erwan Yudi Irham Fa'idh Faiztyan Ismulia Nur Berlian Ivan Sanusi Joan Ricard Panggabean Jodhi Sugihartono Lia Lidya Roza M Ikhsan Mahfudhotul Khasanah Manggala Raka Perkasa Martin Clinton Tosima Manullang Mentary Putri Pratami Mey Fenny Wati Simanjuntak Michael SM Pakpahan Mochammad Luthfi Febriadi Muhammad Amri Hakim Muhammad Chamdun Muhammad Fahmi Awaj Muhammad Faizal Afriansyah Muhammad Ichsan Adhiim Muhammad Kautsar Muhammad Naufal Prasetyo Muhammad Ridwan Asad Munabbih, Muhammad Ihaab Nadia Febrianita Gunarto Najich, Zakky Ainun Norma Fitra Puspa Rahma Nur Kholid Nurazizah Nurazizah Nurhuda Maulana Oky Dwi Nurhayati Prasetyo, Deny Priguna Septia Putra R Rizal Isnanto R. Rizal Isnanto Radian Betayunanda Rahmatika, Annisa Rossy Richard Dwi Olympus Augustinus Rinta Kridalukmana Rio Julian Azis Pratama Risma Septiana Risma Septiana Riyadhi Sholikhin Rizkiana, Alifia Rofiq Cahyo Prayogo Roza, Lia Lidya Ruli Handrio Satriaji Cahyo Nugroho Shofa Taftazanie Sukiswo Sukiswo Tri Prasetyo Ufan Alfianto Wahyu Krisna Hidayat Wahyu Krisna Hidayat Wildan Budi Bawono Yanuar Wisnu Triaji Yudha Aditya Yudi Eko Windarto Yudi Restu Adi Yuni Waz Zaituun Yusuf Rafli Baharsyah Zaituun, Yuni Waz Zolan Devi Khoirunnisa

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