Articles
the Data Warehouse Design for the Bank X with Inmon Approach
Lanang Bagus Amertha;
Rukmi Sari Hartati;
Made Sudarma
International Journal of Engineering and Emerging Technology Vol 5 No 2 (2020): July - December
Publisher : Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University
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DOI: 10.24843/IJEET.2020.v05.i02.p04
Various activities related to financial transactions such as the process of deposit and loan funds require the role of the Bank. Along with a large number of customer needs in current technological developments, the banking industry is undergoing many changes. The products offered by the Bank are becoming more diverse. Customers needs for services offered by banks are becoming increasingly high for example internet banking needs. Banks require high data storage so that the bank's business processes can run efficiently. High data requirements by banks also require ease of exchanging data. One concept that can be applied is Data Warehouse. There are various approaches in developing Data Warehouse, one of which is Inmon. This study aims to build a database design from Bank X Data Warehouse with the Inmon approach. The results of the design of the Data Warehouse Bank X database design consists of three fact tables, namely loan fact, saving fact, and portfolio fact, and two data marts, namely loans and saving.
STUDI POLA PENGELOLAAN ENERGI BIOGAS SEBAGAI ENERGI ALTERNATIF PADA KELOMPOK TERNAK DI DESA TUNJUK TABANAN
I Wayan Raka Ardana;
I.A.D Giriantari;
Rukmi Sari Hartati
Logic : Jurnal Rancang Bangun dan Teknologi Vol 13 No 1 (2013): March
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali
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Teknologi biogas merupakan teknologi yang digunakan untuk mengolah limbah organik menjadi sumber energi terbarukan dalam bentuk gas bio. Gas bio dihasilkan dengan proses perombakan dan fermentasi bahan-bahan organik seperti kotoran ternak oleh mikroorganisme di dalam ruang kedap udara (digester). Biogas layak digunakan sebagai energi alternatif untuk memenuhi kebutuhan energi dalam kehidupan sehari-hari seperti energi panas untuk memasak, dan energi listrik. Kajian terhadap pengelolaan potensi biogas di Desa Tunjuk Tabanan dihasilkan biogas sebesar 40.644 m3/tahun dan Program Simantri 10 m3 per hari, dan pupuk organik padat 40 kg/hari, cair 20 lt/hari. Secara ekonomis berdampak pada pendapatan kelompok ternak per hari Rp. 97.600,- . Dari hasil analisis SWOT kelompok ternak program Simantri diperoleh alternatif strategi dan rancangan mekanisme untuk mengembangkan pengelolaan sistem biogas adalah : membenahi struktur organisasi dan pengelola, meningkatkan kualifikasi dan kinerja pengelola, meningkatkan sosialisasi dan permodalan, kerjasama dengan pihak lain.
KLASIFIKASI USIA DENGAN CITRA PADA REGISTRASI GAME ONLINE
Ni Komang Sri Julyantari;
Rukmi Sari Hartati;
Made Sudarma
Jurnal Teknologi Informasi dan Komputer Vol 5, No 3 (2019): Jurnal Teknologi Informasi dan Komputer
Publisher : LPPM Universitas Dhyana Pura
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ABSTRACT The importance of the biggest age that is utilized in sharing information technology is one of them is registering online games. Nowadays the proliferation of online games among the wider community is no exception in the class of children who fall into the category of not enough age. When playing online games, players are required to register early to log in. In registering the player is realized to enter the date of birth and this can be manipulated by players who really should be old enough or do not deserve to play online games. To overcome the falsehood or manipulation of data, the player who will register can provide a format photo. JPG with this photo issued the system to be built to know us really from the person who made the registration. To be able to perform face detection and age classification using the Viola Jones method which will be used for human face detection and the backpropagation artificial neural network method is used for classification. In this study the data used is https://data.vision.ee.ethz.ch/cvl/rrothe/imdb-wiki/ by entering 100 data as test data and 200 as training data, then the findings obtained are 75% appropriate results Keywords: Age Classification, Online Game, Face RecognitionABSTRAKPentingnya usia banyak dimanfaatkan dalam berbagi bidang teknologi informasi salah satunya adalah. Saat ini maraknya game online dikalangan masyarakat luas tidak terkecuali di kalangan anak-anak yang termasuk dalam kategori belum cukup umur. Pada saat melakukan permainan game online, pemain wajib melakukan register awal untuk dapat melakukan login. Dalam melakukan register pemain diwajibkan untuk memasukkan tanggal lahir dan hal ini dpat dimanipulasi oleh pemain yang memang seharunya cukup umur atau belum pantas memainkan game online. Untuk mengatasi kepalsuan atau manipulasi data maka pemain yang akan melakukan register dapat memberikan foto dengan format. JPG dengan foto ini nantinya system yang akan dibangun dapat mengenal usis sebenarnya dari orang yang melakukan register tersebut. Untuk dapat melakukan deteksi wajah dan klasifikasi usia menggunakan metode viola jones yang akan digunakan untuk deteksi wajah manusia dan metode jaringan saraf tiruan backpropagation digunakan untuk klasifikasi. Dalam penelitian ini data yang digunakan 100 data sebagai data uji dan 200 sebagai data latih dari https://data.vision.ee.ethz.ch/cvl/rrothe/imdb-wiki/, maka hasil akurasi yang didapat adalah 75% hasil sesuai.Kata kunci : Kalsifikasi Usia, Game Online, Deteksi Wajah
RANCANG BANGUN DATA LOGGER MONITORING VIBRASI PADA MOTOR LISTRIK 6,3 KV BERBASIS IOT SECARA REAL TIME DI PLTU JERANJANG
Putu Agus Satriya Guna Adnyana;
Rukmi Sari Hartati;
I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 9 No 1 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD
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DOI: 10.24843/SPEKTRUM.2022.v09.i01.p14
As a power plant industry, PLTU Jeranjang OMU (Operation and Maintenance Unit) owned oneof 6.3 kV nominal voltage induction motor that has critical characteristic that drives the waterpump into the boiler room which always has to operate. This motor has been equipped withtemperature sensor in real time that can monitor the temperature of bearing motor. However,manual control is still applied in vibration monitoring. It is done by taking the vibration data oncea week, and there is no deviation data found in real time. The result of this study shows that theprototype of IoT-based vibration monitoring data logger that is designed using the blynkapplication obtained the average of sensor deviation of 2%. Alarm notification of each sensorsdeliver "warning" if the vibration value indicates ? 4,5-70 mm/s and alarm notification delivers"emergency" if the vibration value indicates ? 7,1 mm/s in concordance with the ISO 10816-3vibration standard. Although, the performance of sensor data storage has successfully storingthe data with 8 GB microSD card, then will be fully charged in 4629 days or 154 months and 3days.
A Review on Model of Integrating Renewable Distributed Generation into Bali’s Power Distribution Systems: Issues, Challenges, and Possible Solutions
Ngakan Putu Satriya Utama;
Rukmi Sari Hartati;
Wayan G. Ariastina;
Ida Bagus A. Swamardika;
Ontoseno Penangsang
Indonesian Journal of Electrical Engineering and Computer Science Vol 4, No 2: November 2016
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijeecs.v4.i2.pp245-255
Spurred by a global energy crisis, the use of renewable distributed generation (DG) with solar photovoltaic (PV) energy, micro-hydro power, and biomass power are gaining momentum and play major role in Bali’s distribution system as an alternative distribution system planning option. If distributed generation planning is optimal by selected optimization of multi-objective function under certain operating constraints and then their site and size are also selected optimally, the penetration of DGs is potentially beneficial. This paper would review techno-economic model objective, voltage profile improvement and power losses constraints as well as optimization based model using particle swarm optimization (PSO) algorithm application in Bali’s distributed generation planning.
Metode Maximum Power Point Tracking pada Panel Surya : Sebuah Tinjauan Literatur
Gede Patrianaya Margayasa Wirsuyana;
Rukmi Sari Hartati;
Ida Bagus Gede Manuaba
Techné : Jurnal Ilmiah Elektroteknika Vol. 21 No. 2 (2022)
Publisher : Fakultas Teknik Elektronika dan Komputer Universitas Kristen Satya Wacana
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DOI: 10.31358/techne.v21i2.321
Metode pelacakan titik daya maksimum (MPPT) yang efisien memainkan peran penting untuk meningkatkan efisiensi sistem pembangkit fotovoltaik (PV). Studi ini memberikan tinjauan tentang status metode MPPT saat ini untuk sistem PV yang diklasifikasikan ke dalam tiga kategori. Kategorisasi didasarkan pada karakteristik pelacakan dari metode yang dibahas. Pada penelitian ini juga dilakukan perbandingan antar metode MPPT berdasarkan tiga parameter yaitu waktu konvergensi, tingkat osilasi, dan efisiensi sebagai acuan pemilihan metode untuk membuat analisis yang komprehensif. Tinjauan literatur yang dijelaskan dalam penelitian ini dapat digunakan sebagai referensi untuk mengatasi kesenjangan untuk penelitian lebih lanjut di bidang ini. Tinjauan komparatif dalam bentuk tabel juga disajikan di akhir pembahasan setiap kategori untuk mengevaluasi kinerja metode ini, yang akan membantu dalam memilih teknik yang sesuai untuk aplikasi tertentu. Hasil yang didapatkan adalah metode konvensional unggul pada waktu tracking yang cepat sedangkan metode metaheuristic unggul pada efisiensi dan osilasi yang rendah.
Three-phase four-wire shunt hybrid active power filter model with model predictive control in imbalance distribution networks
Asep Andang;
Rukmi Sari Hartati;
I Bagus Gede Manuaba;
I Nyoman Satya Kumara
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 6: December 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijece.v12i6.pp5923-5937
This paper presents a harmonic reduction and load imbalance model in a three-phase four-wire distribution network. This model uses a hybrid active power filter, a passive inductor and capacitor filter, and an active power filter in the form of a three-phase, four-leg connected grid inverter. The switching of the voltage source converter on this filter uses finite control set model predictive control (FCS-MPC). Control of this hybrid active power filter uses model predictive control (MPC) with a cost function, comparing the reference current and prediction current with mathematical modelling of the circuit. The reference current is taken from the load current by extracting dq, and the predicted current is obtained from the iteration of the voltage source converter (VSC) switching pattern. Each combination is compared with the reference current in the cost function to get the smallest error used as a power switching signal. Modelling was validated by using MATLAB Simulink. The simulation results prove a decrease in harmonics at a balanced load from 22.16% to 4.2% and at an unbalanced load, reducing the average harmonics to 4.74%. The simulation also decreases the load current imbalance in the distribution network. Reducing the current in the neutral wire from 62.01%-0.42% and 11.29-0.3 A.
RANCANG BANGUN SISTEM MONITORING SUHU COLD STORAGE BERBASIS IOT MENGGUNAKAN WEMOS D1 R2 DI PT. AEROFOOD ACS DENPASAR
Diky Wahyu Kusuma Budi;
Rukmi Sari Hartati;
I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 9 No 4 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD
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DOI: 10.24843/SPEKTRUM.2022.v09.i04.p5
Monitoring temperature and humidity in cold storage is very important to prevent damage to food raw materials. Checking the temperature in the cold storage is carried out every 4 hours with the results manually written on the log sheet by the working staff and also sometimes there are staff who do not close the cold storage door tightly so that it causes an increase in temperature. Therefore an IoT-based cold storage temperature monitoring system is created using Wemos D1 R2 in real time which is very necessary. The design of this prototype uses hardware, namely the WeMos D1 R2 microcontroller because it is based on ESP8266 which can be connected to WiFi, DHT22 temperature sensor, and HC-SR501 PIR sensor. The software used is blynk and google spreadsheet. The results of this prototype design are being able to read the cold storage temperature and humidity properly which can be seen in the blynk application on a smartphone by displaying the temperature and humidity values. This prototype also has a feature that sends notifications to smartphones when the temperature is read more than 5°C and has temperature data stored on Google spreadsheets. The conclusion of this study has succeeded in designing and making a prototype of an IoT-based cold storage temperature monitoring system. The testing of the prototype can work well. The results of applying the prototype to cold storage Room 21 obtained an average temperature of 2.9°C and an average humidity of 86%.
REKAYASA SISTEM PENERIMA BEASISWA MISKIN DENGAN METODE C4.5 DAN ELECTRE
Made Henny Aryani;
Rukmi Sari Hartati;
Ni Wayan Sri Ariyani
Seminar Nasional Informatika (SEMNASIF) Vol 1, No 1 (2017): “e-Defense : Menjaga keamanan data menghadapi cyber warfare untuk memperkokoh ke
Publisher : Jurusan Teknik Informatika
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Dalam upaya pemerataan kesempatan pendidikan, peningkatkan mutu, serta menekan angka putus sekolah bagi siswa kurang mampu, Pemerintah Provinsi Bali melalui Dinas Pendidikan Pemuda dan Olahraga Provinsi Bali mengalokasikan anggaran untuk Bantuan Sosial berupa Beasiswa Miskin (BSM) sebesar 15 persen dari anggaran pendidikan Provinsi Bali.Penetapan calon penerima BSM dilakukan berdasarkan usulan dari masing-masing sekolah sesuai dengan kuota yang diberikan. Usulan dirangking secara manual dengan memberikan bobot pada masing-masing kriteria sesuai dengan Petunjuk Teknis Pelaksanaan Bantuan Sosial BSM Provinsi Bali tanpa adanya skala prioritas pada kriteria tersebut. Hal ini mengakibatkan adanya ketidaktepatan dalam penyaluran BSM. Maka pada penelitian ini akan melakukan rekayasa sistem penerima BSM dengan metode klasifikasi C4.5 dan perangkingan Multi Attribute Decision Making (MADM) ELECTRE.Klasifikasi C4.5 akan membagi data siswa menjadi dua kategori yaitu kategori siswa yang layak menerima BSM dan kategori siswa yang tidak layak menerima BSM. Data dengan kategori layak menerima BSM selanjutnya akan dirangking sesuai dengan prioritas penerima tertinggi ke rendah menggunakan metode ELECTRE
PENGARUH KETIDAKSEIMBANGAN BEBAN TERHADAP PROFIL JARINGAN TEGANGAN RENDAH
I Kadek Krisna Yoga;
Rukmi Sari Hartati;
Wayan Gede Ariastina
Jurnal SPEKTRUM Vol 10 No 2 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD
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DOI: 10.24843/SPEKTRUM.2023.v10.i02.p1
Load imbalance occurs due to unequal distribution of load in each phase, this can occur in low voltage network distribution lines, one of which occurs in the DS0588 transformer, Merdeka feeder, Denpasar. Based on the data obtained, the percentage of DS0588 transformer load unbalance is 14%. The DS0588 transformer is one of the transformers at the Merdeka Denpasar Feeder with a capacity of 160 kVA which is located on Jalan Badak Agung, Renon Denpasar. Load unbalance data obtained at PLN UP3 South Bali. The research was carried out by the method of redistribution of the load on each phase under unbalanced load conditions, so that the total load of the three phases is the same or close. The results obtained were that the percentage of unbalanced loads in unbalanced conditions was 14% and when balanced conditions decreased to 2.2%. The losses in the distribution network when the unbalanced condition is 25 kW and the balanced condition drops to 23.3 kW, this shows that the load imbalance has an effect on the low voltage network losses. The higher the load imbalance, the higher the losses incurred.