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All Journal ENGINEERING Elektrika Electrician : Jurnal Rekayasa dan Teknologi Elektro
Sri Heranurweni
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Control & Systems Engineering Electrical & Electronics Engineering Engineering

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54 Vol 10 No. 1 April 2015 PERANCANGAN MEDIA KOMPRESI VIDEO BERBASIS FAST MODE DECISION ALGORITHM Noor Arifin; Sri Heranurweni; Ari Endang Jayanti
Engineering : Jurnal Bidang Teknik Vol 6 No 1 (2015): April
Publisher : Universitas Pancasakti Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (314.018 KB) | DOI: 10.24905/eng.v6i1.416

Abstract

Kompresi video digital sangat dibutuhkan pada media video digital untuk menghemat ruang penyimpanan dan bandwidth yang besar tanpa mengurangi kualitasvideo yang terlalu signifikan. Sehingga dibutuhkan sebuah media kompresi yang mampu mengurangi ukuran file video agar lebih efisien.Untuk merancang media kompresi video pada penelitian ini digunakan bahasa pemrograman C# dengan format keluaran file video berupa .MP4 dan MKV. Hasil kompresi dianalisa nilai MSE dan PSNR pada frame  pertama.Hasil pengujian menunjukkan nilai PSNR berada pada kisaran 30dB sampai 50dB sesuai standar yang diperbolehkan ITU-T 2014.Kata kunci : kompresi, video, PSNR.
Support Vector Machine Dalam Klasifikasi Jenis Beras Berdasarkan Ciri Fisik, Tekstur, dan Visual Luqman Fauzi; Andi Kurniawan Nugroho; Sri Heranurweni; Budiani Destyningtias
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 20 No. 1 (2026)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v20n1.2875

Abstract

Abstrak. Klasifikasi beras penting untuk menjamin kualitas dan efisiensi sesuai dengan kebutuhan konsumen dan industri. Metode tradisional klasifikasi beras biasanya memakan waktu, subjektif, dan rentan terhadap kesalahan manusia. Mengatasi hal ini, penelitian ini merekomendasikan algoritma Support Vector Machine (SVM) untuk mengklasifikasikan lima jenis beras, yaitu Arborio, Basmati, Ipsala, Jasmine, dan Karacadag, berdasarkan gabungan fitur fisik, tekstur, dan visual yang diperoleh dari basis data terdiri dari 75.000 gambar butir beras. Langkah-langkah prapemrosesan yang digunakan meliputi segmentasi gambar, penskalaan ke 128×128 piksel, konversi ke skala abu-abu, dan normalisasi. Fitur yang diekstraksi meliputi panjang, lebar, luas, dan rasio aspek (fitur fisik); kontras, korelasi, energi, dan homogenitas dari Grey Level Co-occurrence Matrix (GLCM) (fitur tekstur); serta nilai RGB rata-rata, kecerahan, intensitas, dan saturasi (fitur visual). Fitur-fitur ini diterapkan dalam pelatihan dan pengujian model SVM dengan rasio pelatihan-pengujian 80:20. Ukuran evaluasi yang digunakan meliputi akurasi, presisi, recall, F1- score, dan ROC-AUC. Model SVM mencapai akurasi total 99.43%, menunjukkan kinerja dan stabilitas yang baik dalam membedakan varietas beras, terutama saat kombinasi fitur dioptimalkan. Hasil penelitian ini menegaskan pentingnya integrasi fitur secara keseluruhan dalam meningkatkan kinerja klasifikasi. Penelitian ini menawarkan solusi stabil untuk klasifikasi otomatis beras dan berkontribusi pada integrasi kecerdasan buatan dalam sektor pengolahan makanan dan pertanian.
RANCANG BANGUN SMART HOME AUTOMATIC CONTROL dengan KOMUNIKASI MELALUI BLUETOOTH HC-05 BERBASIS MIKROKONTROLER ARDUINO dan ANDROID Yohan Erwinnanto; Andi Kurniawan N; Sri Heranurweni
Elektrika Vol. 9 No. 2 (2017): Oktober 2017
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v9i2.1092

Abstract

Design of Smart Home Automatic Control with Communications Via Bluetooth HC-05-Based Microcontroller Arduino and Android, will provide all the comfort, safety, security and energy savings, which takes place automatically and programmed via microcontroller, the house or building. Design of Smart Home Automatic with Control Communications Via Bluetooth HC-05-Based Microcontroller Arduino and Android is intended for automatic control processes.The system consists of seven sensors, keypad password for security doors, HC-05 Bluetooth GSM alarm application and device control applications aktuaktor, and aktuaktor buzzer, dc motors, lights, fans and fan dc exhausting. Among these sensors is a PIR sensor to detect theft, sensor MQ6 to detect leakage of LPG gas and smoke from fires, sensor HC-SR04 ultrasonic for automatic garage doors, fire sensors to detect a fire, the sensor LM35 to detect the temperature of the room, when the room temperature is hot the fan will be on automatically, when the cold room temperature will shut off the fan and LDR sensor to detect the intensity of light during the day which turn the lights off automatically and vice versa, thus saving energy. Homeowners can also control lights and monitoring sensors with android phones that are connected with communication via Bluetooth HC-05 microcontroller arduino, and can receive GSM alarm application sensors such as calling and sms.Test results are used UART communication data transmission between the microcontroller serial monitor monitor has an error of 0 % . HC - 05 Bluetooth can accept orders at the farthest distance of 11 meters . The fire sensor can work well when the fire was 1-10 cm . Sensor HC - SR04 is already working with an error rate of 0.3 %, so the accuracy of this tool by 100 % - 0.3 % = 99.7 % .Keywords : Security Door , Bluetooth HC - 05 , Microcontroller Arduino and Android , Application Control and Application GSM alarm.
SISTEM MONITORING PENGENDALI DAN PENGHITUNG WAKTU PADA DRAG RACE BERBASIS MIKROKONTROLER AT MEGA 8535 Vendi Bangun Marhendra; Sri Heranurweni
Elektrika Vol. 9 No. 2 (2017): Oktober 2017
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v9i2.1095

Abstract

 In a drag race, which is often held by race organizers. The process of determining the jump start and determining who crosses the first finish line still relies on human monitoring. Manually recording (stopwatch) is not enough because there are many inhibiting factors, including: operator, start theft by drivers, recording results, damage to the stopwatch and others. The drag race is often held during the day. The hot weather will cause someone to get tired quickly, in this case it is aimed at the person who is the operator who monitors the theft of the start and the operator at the finish line because the person is in the middle of a very hot track. Based on the reasons mentioned above, it is necessary to have a controller and timer system on the ATMega8535 microcontrollerbased drag race. Making this tool will facilitate the work of humans in obtaining information in the racing arena that does not allow humans to do it manually, so that accurate data is obtained.Keywords: Atmega 8535 microcontroller, jump start, stopwatch  
Co-Authors Andi Kurniawan N Andi Kurniawan Nugroho Ari Endang Jayanti Budiani Destyningtias Luqman Fauzi Noor Arifin Vendi Bangun Marhendra Yohan Erwinnanto