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Journal : Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer

Singular Value Decomposition (SVD) Berdasarkan Intensitas Pencahayaannya Untuk Pengenal Wajah Samsurizal Samsurizal; Miftahul Fikri; Nurmiati Pasra
Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Vol 10, No 1 (2021): Edisi Juni 2021
Publisher : Fakultas Teknik Elektro - Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/setrum.v10i1.10376

Abstract

Singular Value Decomposition (SVD) is a method that can be used for biometric systems, where the biometric system is a system for identification by using physical features or human limbs such as fingerprints, eye retina, face, and others. This writing aims to recognize faces based on the intensity of their lighting using SVD. The use of SVD is done by forming the basis of a matrix (where this matrix is a collection of database faces (db)), then this base is used to transform the inputted image / face / db file and database files, then the results of this transformation the norm is calculated, if the minimum norm (db files and input files) is still within a certain tolerance the input file will be categorized as face / db file / ith person. The simulation results show that SVD can classify an image as a face or not with an accuracy of 94.7231% and a period of 35.2020 seconds for the recognition of 900 image files, a face image is a database or not of 68.4616% within 7.5480 seconds for the recognition of 650 face files, a The face images that are in the database are 90.7692% of the people in the 3,7340 seconds period for the introduction of 325 database files.
Dampak Bayangan Pada Panel Surya Terhadap Daya Keluaran Photovoltaic Samsurizal .; Sungsang Dody Purwanto; Miftahul Fikri; Christiono Christiono
Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Vol 9, No 2 (2020): Edisi Desember 2020
Publisher : Fakultas Teknik Elektro - Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/setrum.v9i2.9202

Abstract

The effect of shadows that occur naturally due to the movement of the sun so that the radiance is exposed to trees and buildings before getting to the surface of the solar panels certainly affects the output power produced in the hydropower of the hydropower. This study used photovoltaic type polycrystalline, with observation data conducted in the campus environment IT-PLN. From the results of the study obtained that the power of 51.75 Watts occurred at 11.30 WIB, but when taken into account in real data the output power was obtained by 29.49 Watts at its peak power, it meant the shadow effect occurred by 84.217% at 12.30 WIB. Based on this, there can be a decrease in power by 43,582 Watts while when using the calculation of output power in real data there is a decrease of 25,155 Watts with a large shadow effect of 85,311% can be inferred the greater the shadow value that occurs the less power generated by a solar panel.