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All Journal IAES International Journal of Robotics and Automation (IJRA) Indonesian Journal of Electronics and Instrumentation Systems Telematika : Jurnal Informatika dan Teknologi Informasi Journal of Natural Sciences and Mathematics Research

Agfianto Eko Putra

(Scopus ID : 56534980600); Department Of Computer Science And Electronics, Universitas Gadjah Mada

Author-ID : 2898972

Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Electrical & Electronics Engineering Materials Science & Nanotechnology Physics

Published : 6 Documents Claim Missing Document

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Articles

Review of Vision-Based Robot Navigation Method Budi Rahmani; Agfianto Eko Putra; Agus Harjoko; Tri Kuntoro Priyambodo
IAES International Journal of Robotics and Automation (IJRA) Vol 4, No 4: December 2015
Publisher : Institute of Advanced Engineering and Science

Vision-based robot navigation is a research theme that continues to be developed up to now by the researchers in the field of robotics. There are innumerable methods or algorithms are developed, and this paper described the reviews of the methods. The methods are distinguished whether the robot is equipped with the navigation map (map-based), the map is built incrementally as robot observes the environment (map-building), or the robot navigates using no map (mapless). In this paper will described navigation methods of map-based, map-building, and mapless category.

EKSTRAKSI CIRI MEL FREQUENCY CEPSTRAL COEFFICIENT (MFCC) DAN RERATA COEFFICIENT UNTUK PENGECEKAN BACAAN AL-QUR’AN Heriyanto Heriyanto; Sri Hartati; Agfianto Eko Putra
Telematika Vol 15, No 2 (2018): Edisi Oktober 2018
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v15i2.3123

AbstrakBelajar membaca Al-Qur’an menggunakan alat bantu aplikasi sangat diperlukan dalam mempermudah dan memahami bacaan Al-Qur’an. Pengecekan bacaan Al-Qur’an salah satu metode dengan MFCC untuk pengenalan suara cukup baik dalam speech recognition.Metode tersebut telah lama diperkenalkan oleh Davis dan Mermelstein sekitar tahun 1980. MFCC merupakan metode ekstraksi ciri untuk mendapatkan cepstral coefficient dan frame sehingga dapat digunakan untuk pemrosesan pengenalan suara agar lebih baik dalam ketepatan. Tahapan MFCC mulai dari pre-emphasis, frame blocking, windowing, Fast Fourier Transform (FFT), Mel Frequency Wrapping (MFW), Discrete Cosine Transoform (DCT) dan cepstral liftreing. Hasil pengecekan bacaan Al-Qur’an diujikan dalam sebelas surat mulai dari surat Al-Fatihah, Al-Baqarah, Al-Imran, Al-Hadid, Al-Ashr, Ar-rahman, Al-Alaq, Al-Kautsar, Al-Ikhlas, Al-Falaq dan An-Nas menghasilkan akurasi sebesar rata-rata 51,8%. Kata Kunci : Suara, Bacaan, MFCC, Kesesuaian, Ekstraksi Ciri, Referensi, Bobot, Dominan.

Purwarupa Portable Global Positioning System Haniah Haniah; Agfianto Eko Putra
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 3, No 1 (2013): April
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

AbstrakTelah dibuat sebuah sistem GPS portable menggunakan receiver GPS serta tampilan LCD 128X64. Sistem ini dapat membantu pengguna untuk mengetahui posisi mereka berada agar tidak tersesat. Sistem ini menampilkan data latitude, longitude, kecepatan dan waktu yang ditampilkan pada LCD 128X64. Sehingga pengguna bisa mengetahui posisi mereka dengan melihat posisi garis lintang dan garis bujur. Sistem ini dibuat dengan menggunakan mikrokontroler ATmega32 sebagai pemroses, GPS receiver Polstar PMB-688 untuk menerima data posisi dari satelit dan LCD 128X64 sebagai penampil. Sistem yang dibuat telah mampu menampilkan posisi garis lintang, garis bujur dan kecepatan secara akurat. Deviasi rata-rata untuk GPS portabel dibanding dengan GPS garmin adalah 1,753449 m ± 0,113532 m sedangkan deviasi rata-rata untuk kecepatan adalah 0,441 km/j ± 0,247 km/j. Kata kunci— GPS, Posisi, Polstar PMB-688, Atmega32, Mikrokontroler. Abstract Has created a portable GPS system uses a GPS receiver as well as an LCD display 128X64. This system can help users to identify where they are located so as not to get lost. This system displays the latitude, longitude, speed and time are displayed on the LCD 128X64. So users can know their position by looking at the position of latitude and longitude. This system using microcontroller ATmega32 as processor, GPS receiver Polstar PMB-688 to receive position data from satellites and LCD 128X64 as a viewer. The system is already capable of showing the position of the latitude, longitude and speed accurately. Average deviation for GPS portable than static point is 1.753449 m ± 0.113532 m while the average deviation for speed is 0.441000 kmh ± 0.247000 kmh. Keywords— GPS, Position, Polstar PMB-688, Atmega32, Mikrocontroller.

Purwarupa Perangkat Keras untuk Eksekusi Algoritma AES Berbasis FPGA Nia Gella Augoestien; Agfianto Eko Putra
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 5, No 2 (2015): October
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

AES cryptography algorithm is a tool which often using to protect confidentiality of data.Confidentiality of data is principle parameter of data security in various system. Data security achieve by collaborated AES algorithm with another cryptosystem tools. Therefore, limited resource hardware to excecuteAES algorithm is very important. This research proposed hardware prototype for excecuting AES algorithm based on FPGA. Optimumresource utilizing become basic priority in this design. So that, we are using resource sharing between hardware for encryption and decryption, iteratif architecture on round level, pipeline architecture on transformation level with 32-bit architecture at design to attain optimum resource utilizing. Hardware prototype in this research use FPGA Xilinx Spartan®-6 (XC6LX16-CS324), encryption and decryption have been done in this hardware prototype. This prototype have 1,94Mbps/Slice hardware efficiency, 308,96Mbps throughput with only using 6% resource that available on this FPGA.

Rancang Bangun Purwarupa Penerima Paket APRS Berbasis Raspberry Pi 2 untuk Stasiun Bumi Agfianto Eko Putra; Unggul Adhi Nugroho; Bakhtiar Alldino Ardi Sumbada; Catur Atmaji
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 9, No 1 (2019): April
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

The design of Raspberry Pi 2-based APRS packets for UGM earth stations has been designed, which is much cheaper than commercial devices on the market. A TV tuner is used as a signal receiver, the receiver is accessed via a laptop wirelessly. A directed antenna with a controller is used to automatically point to the satellite. The test was carried out by receiving the APRS package emitted by the International Space Station (ISS) satellite and the LAPAN-A2 satellite. The results showed that the tool was able to get the ISS satellite APRS package with a total of 6 packages out of 10 packets emitted. The package received has an average amplitude of 1,200 Hz and 2,200 Hz which is much smaller than the overall audio amplitude. This indicates that there is high noise in the signal. While the APRS package from the LAPAN-A2 satellite has not been successfully obtained.

The Application of Music Therapy For Children with Autism Based On Facial Recognition Using Eigenface Method Hesti Khuzaimah Nurul Yusufiyah; Ilona Usuman; Agfianto Eko Putra; Triyogatama Wahyu Widodo
Journal of Natural Sciences and Mathematics Research Vol 3, No 1 (2017): June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

This research is motivated by the condition of children with autism who require continuous monitoring without a parent accompany, and certain therapies who is capable to reduce repetitive behaviors and increase the concentration. Music therapy is one of the treatment which able to perform it. The implementation of this research is located in a special schools with autism, the perform is proper at certain times and requires tools for music therapy. Therefore, the integrated device was made to monitor the activities of children with autism, as well as providing music therapy automatic face recognition based on Eigenface method.This device perform when the children with autism under certain conditions (e.g. crying, the teacher would not work orders, etc.), then by capturing the the facial image, the system will process to compare the similarity with the existing database. Then, the shortest distance of euclidean is chosen. If the captured of facial image is similar to the one existing database, then the music is performed as music therapy for children with autism. The results of this system, indicates that the child's responses become more calm, easy concentration, and the repetitive attitude is reduced. While the accuracy of the system achieves by 80% (compare with the old and new database) and 20%. (without new database). ©2017 JNSMR UIN Walisongo. All rights reserved.

Co-Authors Agus Harjoko Bakhtiar Alldino Ardi Sumbada Budi Rahmani Catur Atmaji Haniah Haniah Hesti Khuzaimah Nurul Yusufiyah Ilona Usuman Nia Gella Augoestien Sri Hartati Tri Kuntoro Priyambodo Triyogatama Wahyu Widodo Unggul Adhi Nugroho

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