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All Journal Jurnal RESISTOR (Rekayasa Sistem Komputer) Jurnal Algoritma, Logika dan Komputasi Bit (Fakultas Teknologi Informasi Universitas Budi Luhur) Jurnal Karya untuk Masyarakat (JKuM)
Chyquitha Danuputri
Universitas Bunda Mulia
Humanities Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Social Sciences

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PENENTUAN KECEPATAN PUTAR KIPAS ANGIN DAN INTENSITAS LAMPU DENGAN FUZZY LOGIC MAMDANI Chyquitha Danuputri
Jurnal Algoritma, Logika dan Komputasi Vol 3, No 2 (2020): Jurnal ALU, September 2020
Publisher : Universitas Bunda Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30813/j-alu.v3i2.2455

Abstract

Intelligent systems are one of the most important branches of the computer world. Computers are expected to be able to solve various problems in the real world, not just a tool for doing calculations. To make this system, algorithms are needed that are in accordance with the problems faced so that they can solve or produce the decisions needed to solve these problems appropriately. Mamdani fuzzy logic algorithm is one of the algorithms that can be applied in intelligent systems. Fuzzzy mamdani algorithm, is one part of the Fuzzy Inference System which is useful for making the best conclusion or decision in an uncertain problem. This research focuses on the calculation of the fuzzy logic algorithm in providing answers to the uncertainties found in smart home systems used to control the speed of a fan and lights, while the factors that become uncertain in controlling a fan are room temperature and humidity and For lamps, they have a factor of light intensity and time of the region, for these factors, the researchers use the Humanity Guide Hygiene standard reference for humidity and the Regulation of the Minister of Health of the Republic of Indonesia Number 1077 / Menkes / Per / V / 2011 concerning Guidelines for Air Sanitation in Home Spaces. Through this research, it can be seen that using the mamdani fuzzy logic algorithm can provide a result in the form of a decision to determine how fast a fan should rotate based on the temperature and humidity factors in the room as well as the level of light intensity that the lights must emit.
PENGAMANAN DATA MELALUI CLOUD COMPUTING DENGAN INTEGRASI STEGANOGRAFI LSB DAN KRIPTOGRAFI VIGENERE KEY BERBASIS ANDROID Chyquitha Danuputri
Jurnal Algoritma, Logika dan Komputasi Vol 1, No 2 (2018): Jurnal ALU Volume 1 nomor 2 September 2018
Publisher : Universitas Bunda Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30813/j-alu.v1i2.1369

Abstract

Pertukaran data pada jaman sekarang sudah banyak dilakukukan dengan menggunakan sistem cloud computing. Saat ini masih banyak fitur layanan penyampaian pesan  belum memiliki standar keamanan yang baik, karena pada implementasinya pihak operator provider selaku penyedia layanan fitur-fitur ini masih dapat mengetahui isi pesan yang dikirimkan oleh pelanggan. Pada penelitian ini menggunakan metode Vigenere Key Kriptografi dan LSB Steganografi yang diintegrasikan menjadi satu dalam sebuah sistem pengamanan data. Dengan teknik-teknik tersebut disatukan menjadi suatu sistem yang membantu user dalam hal petukaran data rahasia melalui media share online tanpa diketahui keberadaannya oleh pihak yang tidak bertanggung jawab. Cover object yang digunakan di penilitian ini adalah image digital dengan jenis gambar *.gif, *.jpeg, *.png dan *.bmp. Data yang dapat disisipkan ke dalam cover image adalah berupa plaintext dan file dokumen yang berformat *.txt, *.doc, *.xls, *.pdf. Penelitian ini menghasilkan kualitas hasil gambar stego yang tidak terlihat perbedaannya dengan gambar aslinya terlihat kasat mata dan dibutuhkan kunci enkripsi untuk menyimpan ke dalam cover image dan dekripsi untuk membuka data dari stego image. Prototipe sistem ini menghasilkan  proses pertukaran data rahasia melalui media online share  smartphone  khususnya android lebih terjamin karena pihak yang tidak berwenang atas data rahasia tersebut tidak akan mengetahui bahwa pesan tersebut mengandung data rahasia. Kata kunci: Android, Kriptografi, Steganografi, LSB-Insertion, Enkripsi, Cloud Computing
KONTROL PEMAKAIAN PERALATAN ELEKTRONIK BERBASIS MIKROKONTROLER DAN ALGORITMA FUZZY MAMDANI Chyquitha Danuputri; Lukman Hakim; Willy Stevanus Susilo; Fernando Dedi Samuel
Jurnal RESISTOR (Rekayasa Sistem Komputer) Vol. 3 No. 2 (2020): Jurnal RESISTOR Edisi Oktober 2020
Publisher : LPPM STMIK STIKOM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31598/jurnalresistor.v3i2.646

Abstract

Excessive use of electricity had some negative impacts. In this research, the Arduino ESP32 integrated with the WiFi module, the PZEM-004T V3.0 electric current sensor to detect the electric current used, DHT22 temperature sensor to measure the temperature and humidity of the room air, BH1750 light sensor to measure the intensity of light entering the room and SPDT Relay connected between the microcontroller and the lamp. Mamdani Fuzzy Logic Algorithm which was a cryptic system as part of the intelligent system methodology applied to control automation in fans with fuzzy input variables was temperature and humidity as well as the automation of lamp usage applied fuzzy logic mamdani with fuzzy input variables were the intensity of incoming light and the time zone. Defuzzy's calculation results based on rules and have been tested on fan and lamp automation obtained 100% accuracy. Aside from being automatic, this system were also applied manual control through the Blynk application only to the function (ON / OFF) and monitored real time electricity usage in the IDR value remotely with the Internet of Things method based on Microcontroller and IOS or Android. This research could help homeowners in saving electricity.
PENGUJIAN PENGEMBANGAN TERHADAP ALGORITMA VIGENERE KEY KRIPTOGRAFI Chyquitha Danuputri; Nico Santosa; Fernando Dedi Samuel
Jurnal RESISTOR (Rekayasa Sistem Komputer) Vol. 5 No. 1 (2022): Jurnal RESISTOR Edisi April 2022
Publisher : Prahasta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31598/jurnalresistor.v5i1.822

Abstract

The process of digital communication through media that is already integrated with the internet requires a security system in order to prevent confidential data from being acquired by unauthorized third parties and misused by these third parties. In order not to know the confidentiality of the data, techniques and algorithms are needed that can make secret messages not understand the meaning of the secret message. One of the data security techniques is cryptography, which can scramble the arrangement of characters that humans understand into characters that are not understood by humans with various languages. This research is the development of the Vigenere Key Kriptography algorithm for the encryption and decryption process in text messages that include all the characters on the computer keyboard keys. The results of the encryption will be in the form of a.txt file which contains cipher text and the results of the decryption will be plain text that appears in the application text box and the test uses the Python programming language. This research can produce cryptographic techniques that can produce ciphertext of all characters on the computer keyboard keys and can scramble text so that it cannot be understood by human language for data security
Penggunaan Algoritma A-Star Untuk Strategi Penyebaran Pengunjung pada Pusat Belanja Lukman Hakim; Chyquitha Danuputri; Destriana Widvaninqrum
Bit (Fakultas Teknologi Informasi Universitas Budi Luhur) Vol 19, No 1 (2022): APRIL 2022
Publisher : Universitas Budi Luhur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36080/bit.v19i1.1836

Abstract

Shopping centers such as malls that have many tenants or shops make it difficult for many people to find the intended store and the distribution of visitors is uneven, the existence of maps or instructions makes it easy to find the target shop, Bay walk mall which has ± 100 shops with buildings which is quite broad, it should be noted how the deployment and navigation of store search is easier. This study uses the A-Star algorithm to find the shortest route, based on the destination store. Navigation application testing was conducted on Baywalk Mall visitors with a success percentage of 86.6%
Internet Sehat Menciptakan Dunia Maya yang Bersahabat untuk Murid di Raudhatul Athfal Pena Audi Jakarta Ester Lumba; Lukman Hakim; Destriana Widyaningrum; Maya Cendana; Chyquitha Danuputri
Jurnal Karya untuk Masyarakat (JKuM) Vol 4 No 1: JANUARI 2023
Publisher : Universitas Tarakanita

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36914/9w2rat68

Abstract

Orang tua murid yang tidak memahami dengan baik pola pengasuhan anak khususnya di tengah pandemi Covid-19 akan mengalami kesulitan dalam mendampingi anak dalam penggunaan teknologi internet dan penggunaan gadget. Metode pelaksanaan kegiatan pengabdian kepada masyarakat dimulai dengan persiapan, pelaksanaan, evaluasi dan laporan. Pada tahap persiapan tim dosen melakukan identifikasi kebutuhan mitra dan penetapan materi penyuluhan. Pada tahap pelaksanaan, tim memberikan penyuluhan kepada orang tua murid, penyampaian materi dilakukan secara luring dan daring. Dalam kegiatan ini tim dosen Program Studi Informatika memberikan edukasi dan penyuluhan kepada orang tua bagaimana anak dapat nyaman dan aman menggunakan Internet. Kegiatan ini bertujuan untuk memberikan edukasi kepada orang tua murid di Raudhatul Athfal Pena Audi yang di hadiri oleh 34 orang tua murid. Pada tahap evaluasi dan laporan tim meminta masukan dari peserta melalui kuesioner dan membuat laporan kegiatan. Hasil kegiatan ini adalah meningkatnya pemahaman pengasuhan anak dalam hal pemanfaatan teknologi internet yang ditunjukan dari hasil kuesioner rata-rata nilai 3,5 untuk tiap indikator pertanyaan menjawab setuju. Pelaksanaan kegiatan pengabdian kepada masyarakat berjalan dengan baik, materi disampaikan secara luring dan daring.
Co-Authors Destriana Widvaninqrum Destriana Widyaningrum Ester Lumba Fernando Dedi Samuel Fernando Dedi Samuel Hakim, Lukman Maya Cendana, Maya Nico Santosa Willy Stevanus Susilo