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Pengenalan Bentuk Benda Berdasarkan Sinyal Suara dengan Transducer Mikrofon dan Teknologi Kinect Aulia, Siska; Lifwarda, Lifwarda; Yustini, Yustini
JURNAL NASIONAL TEKNIK ELEKTRO Vol 7, No 3: November 2018
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (853.143 KB) | DOI: 10.25077/jnte.v7n3.600.2018

Abstract

Voice processing or speech recognition is growing rapidly hence it can be used for various applications such as moving a system or motion control and multimedia-based learning media. Implementation of speech recognition and image detection in this study using microphone transducer and kinect technology. This study aims to produce a system that can identify and recognize an object with word commands, such as circles, triangles, rectangles and many. In sound processing, sound feature extraction is carried out with Mel-Frequency Cepstrum Coeffecient (MFCC). Word modeling was done using statistical modeling, namely the Hidden Markov Model (HMM). HMM is able to provide an efficient mechanism for statistically modeling diversity in words or words. Data were collected with offline and online microphone transducers. This study matches the pattern of words through training and testing process. The output of this system is a recognizable word based on the highest probability and displaying the object shape based on the recognized word, namely circle, triangle and quadrilateral. Test results with mirofon tranducers, for 85% trained sources, 81.5% untrained sources, and 84% untrained Kinect source testing hence that word recognition systems can be implemented with Kinect technology. Keywords : speech processing, HMM, MFCC, Kinect AbstrakPengolahan suara atau pengenalan kata berkembang pesat sehingga dapat digunakan untuk berbagai aplikasi seperti menggerakan suatu sistem atau kontrol gerak dan media pembelajaran berbasis multimedia. Implementasi pengenalan suara dan deteksi citra pada penelitian ini menggunakan transducer mikrofon dan teknologi kinect. Penelitian ini bertujuan untuk menghasilkan sistem yang dapat mengidentifikasi dan mengenali suatu objek dengan perintah kata, seperti lingkaran, segitiga, segiempat dan segibanyak. Dalam pengolahan suara dilakukan ekstraksi ciri suara dengan Mel-Frequency Cepstrum Coeffecient (MFCC). Pemodelan kata dilakukan dengan menggunakan pemodelan statistik yaitu Hidden Markov Model (HMM). HMM mampu memberikan mekanisme yang efisien untuk memodelkan secara statistik keragaman dalam ucapan atau kata.  Pengambilan data sampel dengan transducer mikrofon secara offline dan online. Pada penelitian ini pencocokan pola kata melalui proses pelatihan dan pengujian kata. Keluaran sistem ini berupa kata yang dikenali berdasarkan probabilitas tertinggi dan menampilkan bentuk benda berdasarkan kata yang dikenali. Prosesnya setelah kata dikenali, sistem akan mentracking citra benda berdasarkan bentuk benda kemudian menampilkan bentuk benda yaitu lingkaran, segitiga, segiempat dan segibanyak. Hasil pengujian dengan tranducer mirofon, untuk sumber terlatih 85%, sumber tidak terlatih 81,5%, dan pengujian dengan Kinect sumber tidak terlatih 84% sehingga sistem pengenalan kata dapat diimplementasikan dengan teknologi Kinect. Kata Kunci : speech processing, HMM, MFCC, kinect
VIDEO STREAMING DENGAN VIDEOLAN PROJECT Aprinal Adila.A; Yustini yustini
Elektron : Jurnal Ilmiah Vol 1 No 2 (2009): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.796 KB) | DOI: 10.30630/eji.1.2.23

Abstract

Streaming is process of continuing data sending by broadcasting trough internet which showed by streaming application at PC client. The sending data packaging is compressing to make sending process is easy. Streaming can be done by input media variation and client has a change to benefit just after server sending the distreaming data and running in VLC media player. VideoLAN Client (VLC) is a media to streaming which can be applied as transmitter and receiver. VLC can compress and decompress audio and video data from some input media. It shows data result of streaming which have picture and voice quality as well as the source.
Proses Tracking Satelit Lapan-Tubsat Dengan Menggunakan Frekuensi S-Band Hadria Octavia; Yustini yustini; Firdaus firdaus
Elektron : Jurnal Ilmiah Vol 6 No 1 (2014): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.947 KB) | DOI: 10.30630/eji.6.1.62

Abstract

Satelit LAPAN-TUBSAT yang merupakan satelit mikro pertama yang dibangun LAPAN Indonesia yang bekerja sama dengan Technical University of Berlin (TU-Berlin, Jerman), hingga kini telah dapat menghasilkan gambar video daerah-daerah diwilayah Indonesia sesuai misinya yaitu sebagai satelit surveillance yang mengamati permukaan bumi. Satelit LAPAN-TUBAT ini beredar pada orbit polar, bergerak dan melingkupi seluruh daerah di Indonesia dari timur ke barat seiring dengan rotasi bumi. Untuk memanfaatkan satelit ini secara maksimal maka perlu disiapkan stasiun bumi kendali dan penerima data payload (muatan) satelit terebut. Operasi satelit LAPAN-TUBSAT yang dilakukan melingkupi 2 (dua) hal pokok yaitu operasi pengamatan kondisi kesehatan satelit dan operasi muatan satelit dalam perolehan data video. Sementara fungsi dasar operasi satelit ini melakukan fungsi Telemetri Tracking and Command (TT&C) yaitu melakukan operasi Telemetri, penjejakkan (Tracking) satelit dan operasi pengiriman data komando (Command) ke satelit untuk melaksanakan misi operasinya.
Perancangan Dan Realisasi Antena Mikrostrip Monopole Segiempat Pada Frekuensi 546 Mhz Untuk Aplikasi Dvb-T aprinal adila asril; Yustini yustini; Hadria Oktavia
Elektron : Jurnal Ilmiah Volume 11 Nomor 1 Tahun 2019
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1229.311 KB) | DOI: 10.30630/eji.11.1.96

Abstract

Antena mikrostrip adalah suatu konduktor metal yang menempel diatas groundplane yang diantarannya terdapat bahan dielektrik. Antena mikrostrip terdiri atas 3 bagian utama yaitu patch, substrate dan groundplane. Antena mikrostrip yang dapat digunakan dalam konsep aplikasi DVB-T. Sistem DVB-T (Digital Video Broadcasting Terestrial), merupakan sistem penyiaran langsung dari pemancar bumi (terrestrial). Pada penelitian ini dibuat antena mikrostrip monopole untuk DVB-T dengan menggunakan PCB double layer dan software Zeland. Antena ini dirancang pada frekuensi 546 MHz. Bahan yang digunakan adalah PCB epoxy (FR4) double layer dengan ketebalan bahan 1.6 mm dan konstanta dielektrik sebesar 4.7 mm. Antena mikrostrip tersebut diuji untuk mendapatkan nilai frekuensi resonansi, bandwidth, VSWR, HPBW, Gain dan polaradiasi yang kemudian hasilnya dibandingkan dengan hasil simulasi menggunakan software Zeland Program Manager (IE3D). Pada hasil pengukuran antena diperoleh hasil untuk antena mikrostrip diantaranya nilai return loss = -25 dB pada frekuensi = 545 MHz, bandwidth = 140 MHz, dengan nilai VSWR = 1.48 dB, HPBW = 75o dan polaradiasi berbentuk Bidirectional.
Merancang Sistem Pengukuran Redaman Transmisi Kabel Optik Single Mode Jenis Pigtail aprinal adila asril; Yustini yustini; Putri Azizah Herwita
Elektron : Jurnal Ilmiah Volume 11 Nomor 2 Tahun 2019
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1093.452 KB) | DOI: 10.30630/eji.11.2.117

Abstract

Optical fiber is a transmission channel made of glass or plastic that is used to transmit light signals from one place to another. Optical fibers, in general, have a basic structure consisting of a fiber core, a fiber coating (cladding), and a protective layer (coating) consisting of an inner jacket. This research discusses the design of the attenuation of the fiber optic transmission measurement system by connection factor. Optical fiber cable used in this research is pigtail type cable with single-mode cable type. The cable used is 10 meters long, which will be installed in the Optical Termination Box. In the Optical Termination Box there are 6 pigtail cables, which are without connections, with a 6 cm sleeve protection one connection and two connections, also with a 4 cm sleeve protection one connection and two connections, then use a barrel adapter. In this design testing tools use Light source, Optical Power Meter, and Optical Time Domain Reflectometer). The attenuation value after testing on the protection sleeve 6cm; 12,330 dB, then the attenuation on the protection sleeve is 4cm; 12,729 dB. Then attenuation on the barrel adapter; 12,954 dB
Pengenalan Bentuk Benda Berdasarkan Sinyal Suara dengan Transducer Mikrofon dan Teknologi Kinect Siska Aulia; Lifwarda Lifwarda; Yustini Yustini
JURNAL NASIONAL TEKNIK ELEKTRO Vol 7, No 3: November 2018
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (853.143 KB) | DOI: 10.25077/jnte.v7n3.600.2018

Abstract

Voice processing or speech recognition is growing rapidly hence it can be used for various applications such as moving a system or motion control and multimedia-based learning media. Implementation of speech recognition and image detection in this study using microphone transducer and kinect technology. This study aims to produce a system that can identify and recognize an object with word commands, such as circles, triangles, rectangles and many. In sound processing, sound feature extraction is carried out with Mel-Frequency Cepstrum Coeffecient (MFCC). Word modeling was done using statistical modeling, namely the Hidden Markov Model (HMM). HMM is able to provide an efficient mechanism for statistically modeling diversity in words or words. Data were collected with offline and online microphone transducers. This study matches the pattern of words through training and testing process. The output of this system is a recognizable word based on the highest probability and displaying the object shape based on the recognized word, namely circle, triangle and quadrilateral. Test results with mirofon tranducers, for 85% trained sources, 81.5% untrained sources, and 84% untrained Kinect source testing hence that word recognition systems can be implemented with Kinect technology. Keywords : speech processing, HMM, MFCC, Kinect AbstrakPengolahan suara atau pengenalan kata berkembang pesat sehingga dapat digunakan untuk berbagai aplikasi seperti menggerakan suatu sistem atau kontrol gerak dan media pembelajaran berbasis multimedia. Implementasi pengenalan suara dan deteksi citra pada penelitian ini menggunakan transducer mikrofon dan teknologi kinect. Penelitian ini bertujuan untuk menghasilkan sistem yang dapat mengidentifikasi dan mengenali suatu objek dengan perintah kata, seperti lingkaran, segitiga, segiempat dan segibanyak. Dalam pengolahan suara dilakukan ekstraksi ciri suara dengan Mel-Frequency Cepstrum Coeffecient (MFCC). Pemodelan kata dilakukan dengan menggunakan pemodelan statistik yaitu Hidden Markov Model (HMM). HMM mampu memberikan mekanisme yang efisien untuk memodelkan secara statistik keragaman dalam ucapan atau kata.  Pengambilan data sampel dengan transducer mikrofon secara offline dan online. Pada penelitian ini pencocokan pola kata melalui proses pelatihan dan pengujian kata. Keluaran sistem ini berupa kata yang dikenali berdasarkan probabilitas tertinggi dan menampilkan bentuk benda berdasarkan kata yang dikenali. Prosesnya setelah kata dikenali, sistem akan mentracking citra benda berdasarkan bentuk benda kemudian menampilkan bentuk benda yaitu lingkaran, segitiga, segiempat dan segibanyak. Hasil pengujian dengan tranducer mirofon, untuk sumber terlatih 85%, sumber tidak terlatih 81,5%, dan pengujian dengan Kinect sumber tidak terlatih 84% sehingga sistem pengenalan kata dapat diimplementasikan dengan teknologi Kinect. Kata Kunci : speech processing, HMM, MFCC, kinect
Implementasi dan Perfomansi Jaringan Fiber To The Home dengan Teknologi GPON. Yustini Yustini; Aprinal Adila Asril; H Nasrul Nawi; Rahmatullah Hafizt; Arsis Warman
Jurnal Teknologi Elekterika Vol 18, No 2 (2021): Nopember
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v5i2.3032

Abstract

Fiber To The Home (FTTH) merupakan arsitektur teknologi fiber optic dengan mengirimkan informasi dari provider hingga ke pengguna. Teknologi yang popular digunakan dalam jaringan FTTH ini adalah Gigabit Passive Optical Network (GPON). Dalam penelitian ini penulis mengimplementasikan sebuah arsitektur FTTH dengan menggunakan teknologi GPON di laboratorium komunikasi serat optic Politeknik Negeri Padang, untuk memahami konsep dasar jaringan FTTH, kemudian melihat nilai perfomansi parameter power link budget dan nilai redaman yang dihasilkan pada saat kondisi downstream. Nilai dari parameter tersebut akan dibandingkan dengan standar perusahaan PT.Telkom. Link Power Budget yang didapatkan dari implementasi FTTH pada link user 1 sebesar 15.62 dB, link user 2 sebesar 15.31 dB, link pada user 3 sebesar 16.69 dB dan link pada user 4 sebesar 14.93 dB. Hasil power link budget ini dapat dilihat bahwasannya nilai yang dihasilkan baik karena berada dibawah standar redaman PT.Telkom sebesar 28 dB. Selanjutnya kinerja jaringan diukur dengan menggunakan parameter Quality Of Service (QoS) dengan tujuan untuk mengetahui kualitas layanan data yang dihasilkan. Parameter QoS yang digunakan adalah Throughput,Delay dan Packet Loss. Hasil analisis data menunjukkan bahwa rata rata QoS yang didapatkan adalah troughput 29.79 Kbps, delay sebesar 0.021 ms dan packet loss sebesar 0%.
Antena Vivaldi Konvensional untuk Penerapan pada Radar Cuaca (9.4 GHz) Randhika Rianza; Uzma Septima; Ahmad Dahlan; Firdaus Firdaus; Nasrul Nasrul; Yulindon Yulindon; Yustini Yustini
Elektron : Jurnal Ilmiah Volume 14 Nomor 1 Tahun 2022
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.14.1.236

Abstract

To predict weather conditions as an anticipation act towards natural disasters, a weather radar is needed. In weather radar technology, antennas play an important role in supporting the performance of the weather radar. Vivaldi antenna is the right choice because it has an unlimited bandwidth so it is able to operate at the desired work frequency, including the working frequency of weather radar (9.4 GHz). This research discusses the modification of tapered slots, circular stub, radial stub, length and width of the reference vivaldi antenna [1] using CST Studio software. After modifications and measurements, a return loss value of -23.25336989 dB, bandwidth of 500 MHz, VSWR 1.188463357, gain of 3.99 dBi, and unidirectional radiation patterns. All the resulting antenna parameter values are in good condition and qualify the weather radar antenna for a working frequency of 9.4 GHz.
Prototype Alat Pengaman Mobil Berbasis Internet of Things (IoT) Ifni Joi; Yustini; Roza Susanti; Efendi; Fadli Fadilah Islami
Prosiding SISFOTEK Vol 5 No 1 (2021): SISFOTEK V 2021
Publisher : Ikatan Ahli Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.911 KB)

Abstract

Car security system is something that needs to be considered in everyday life. Often car owners keep an eye on their cars parked in public places. The car is equipped with a security system from the manufacturer but it is only local or only in the form of an alarm in the car, so it cannot be heard from afar by the car owner. So we need a car security that can tell the car owner if there is a thief or break the glass where the car owner is. This IoT-based car safety device uses experiments, namely by conducting trials if there is a car thief in front of the car door. This tool uses a PIR sensor to detect human movement in front of the car door and a vibration sensor to detect vibrations at the car door. Both sensors are used to detect thieves or break cars. The microcontroller used is the Node MCU ESP8266 which will process the second input and send a message to telegram if there is a car thief. Buzzer is used as a local alarm if there is a car thief. PIR sensor can detect humans within a range of 1 meter more than 1 meter does not detect humans. While the vibration sensor will be high if there is a vibration on the car door. The response time of the MCU Node sending a message to the owner's cell phone via telegram is 6.05 seconds. This security tool works well in detecting thieves or breaking car windows.
Installation and Activation of Fiber To The Home (FTTH) Networks and Macrobending Problems in the Feeder Cable Segment Yustini; Aprinal Adila Asril; Herry Setiawan; Popy Maria; Silfia Rifka
Brilliance: Research of Artificial Intelligence Vol. 3 No. 2 (2023): Brilliance: Research of Artificial Intelligence, Article Research November 2023
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v3i2.2967

Abstract

Macrobending is a form of disturbance in Fiber To The Home (FTTH) networks that occurs due to macro-level bending of the cable caused by damage to the fiber optic. Macrobending frequently occurs in FTTH networks within the feeder cables. Feeder cables serve as connectors between the Optical Line Terminal (OLT) and Optical Distribution Cabinet (ODC) in the FTTH system. The occurrence of macrobending in feeder cables affects the quality of the FTTH network. In this study, the impact of macrobending is analyzed based on curvature diameters of 50 cm, 25 cm, and 5 cm on feeder cables before and after FTTH network activation. Before FTTH network activation, the High Super Luminescent Diode (HSL) is used as the input power source, whereas after activation, the input power source comes from the OLT using Small Form-factor Pluggable (SFP) modules. The attenuation (loss) before activation due to macrobending, with curvature diameters of 50 cm, 25 cm, and 5 cm, is found to be 0.02 dB, 0.05 dB, and 0.26 dB, respectively. After activation, the attenuation with the same curvature diameters is measured as 0.01 dB, 0.02 dB, and 0.20 dB, respectively. It is observed that as the curvature diameter decreases, the attenuation increases. The comparison of attenuation before and after network activation doesn't show a significant difference because the input power doesn't affect macrobending, rather it is influenced by the curvature diameter.
Co-Authors - Zurnawita Abdi Abdillah Ade Usra Berli Ahmad Dahlan Amelia Yolanda Anjali, Putri Aprinal Adila Asril Aprinal Adila.A Arsis Warman Asri, Aprinal Adila cania, marisa Deddy Prayama Dedi Tri Laksono, Dedi Tri Denisa Putri Maharani Dikky Chandra Fadli Fadilah Islami Firdaus Firdaus Firmansyah, Herian Hadria Octavia Hadria Oktavia Herry Setiawan Herry Setiawan Ifni Joi Lifwarda Lifwarda Maria, Popi Maritsyah Putra, Danda Marselina, Nadilla Meilisa, Mira Muchtara, Efendi Nasrul Nasrul Nasrul Nindika, Aprilia Nugraha, Bintang Aulia Popy Maria Popy Maria Putri Azizah Herwita Rahmatullah Hafizt Ramadan, Zardi Randhika Rianza Roza Susanti Sahid Ridho Silfia Rifka Siska Aulia Siska Aulia Uzma Septima Uzma Septima - Wiwik Wiharti Yulindon Zurnawita Zurnawita