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All Journal Jurnal Ilmiah Poli Rekayasa Elektron Jurnal Ilmiah SITEKIN: Jurnal Sains, Teknologi dan Industri ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JURNAL INTEGRASI JTERA (Jurnal Teknologi Rekayasa) Yayasan Cita Cendikiawan Al Khwarizmi Brilliance: Research of Artificial Intelligence Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat Intellect : Indonesian Journal of Learning and Technological Innovation International Journal of Wireless And Multimedia Communications JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L)

Rikki Vitria

Jurusan Teknik Elektro Politeknik Negeri Padang

Author-ID : 410045

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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PEMANFAATAN MIKROKONTROLER AT89S51 SEBAGAI PENGGESER FASA PADA ANTENA ARRAY Rikki Vitria
Elektron : Jurnal Ilmiah Vol 4 No 2 (2012): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Utilization of microcontroller especially MCS-51 family has been widely implemented in various applications, such as control and telecommunications applications. One of them is the phase shifting array antenna in the telecommunication field. The Array Antenna was designed from some of dipole antenna. Each element at dipole antenna has a different phase and can be controlled electronically. The phase shifting was done using AT89S51 microcontroller that functioned as an electronic switch on the transmission cable connection. The phase of the array antenna will be moved without moving the structure of the array antenna itself, so that the direction of radiation pattern can be changed in accordance with the phase shifting between the antenna elements.

PENGUATAN SINYAL GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM) MENGGUNAKAN ANTENA YAGI 14 ELEMEN Firdaus firdaus; Ratna Dewi; Rikki Vitria; Lifwarda lifwarda
Elektron : Jurnal Ilmiah Vol 4 No 2 (2012): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

The hand phone provides an easy to communicate in domestic calls or international calls. The radiation pattern of yagi antenna leads to one direction. Therefore, this antenna is selected for signal amplifier in global system of mobile communication. The design of 14 element yagi antenna which applied for signal amplification in the cell phones was conducted in this study. The design was done manually without computer software. The antenna was created using an aluminum pipe in 3/8 inch diameter for element and an aluminum beam for boom. The result showed that the operating frequency between the designed antenna and manufactured antenna are the same i.e. 947 MHz. The bandwidth of yagi antenna is 9 MHz. Moreover, the antenna gain which measured in folded antenna transmitter and BTS transmitter are 16 dB and 12 dB respectively. That result is caused differences in distance at the measurement time. Utilization of yagi antenna has succeeded to increase signal amplification in hand phone

Pelacakan Perahu Masyarakat Yang Mengalami Kondisi Darurat Di Perairan Sipora Utara Kab. Kepulauan Mentawai Berbasis Internet Of Things Ataul Mujib; Ramiati Ramiati; Rikki Vitria
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.14.1.244

Technology in search and rescue has been growing at this time, especially in early detection systems. Basarnas as the leading sector in search and rescue, has used an early detection communication tool called Radio Beacon to quick response search and rescue for aircraft and ship accidents, and conditions that endanger humans. However, in its application in the field, this early detection system has not been touched by the local community, especially because the price is still relatively expensive and the socialization of the importance of safety itself has not been maximized in the community. From these problems, this paper designs a tracking device that works like a Radio Beacon where the switch will activate the Arduino device, GPS module and SIM800l module. The GPS module receives the location coordinates to be further processed by Arduino and sent using the SIM800l module to Firebase and notifications is received by the smartphone and the location can be monitored through an android application created using the MIT App Inventor platform. From the test results, it is found that the initial data transmission process starts from the switch is activated until the notification is received by the smartphone, a delay of 70 seconds occurs while in the process of repeating sending data there is a delay between 10-35 seconds from what has been set in the program looping every 50 seconds.

Pemanfaatan Yolo Untuk Deteksi Hama Dan Penyakit Pada Daun Cabai Menggunakan Metode Deep Learning Yasen, Nadini Mardiah; Rifka, Silfia; Vitria, Rikki; Yulindon, Yulindon
Elektron : Jurnal Ilmiah Volume 15 Nomor 2 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.0.0.397

Chili plants are one of the horticultural crops in Indonesia which have great potential in the Indonesian economy. However, crop failure often occurs. One of the main factors causing this is pest and disease attacks on chili plants. This requires early prevention which can reduce losses. With today's technological developments, prevention can be done easily and economically by using deep learning methods. YOLO is a deep learning algorithm that is commonly used to detect objects in real time. There are 4 classes that will be tested, namely leaves affected by yellow virus disease, leaf spot, thrips pests, and healthy chili leaves. Testing was carried out with a web-based application created with the flask framework. The accuracy results of the YOLO model training process with epoch 150 were 73%. The precision, recall and mAP values obtained were 77.4%, 67.1% and 75.1%. Testing produces accuracy above 74%. The results of this research still produce accuracy that is not high enough, but the application can be used to detect it well and is quite accurate.

Co-Authors Adli, Arif Rafid Alfarezi, Muhammad Amelia Yolanda Anton Hidayat Aprinal Adila Asril Ariesta, Dhea Olivia Ariq Naufal Ataul Mujib Candra, Dikky Dahlan, Andi Ahmad Dhea Olivia Ariesta Eka Safitri Firdaus Firdaus Firdaus Firdaus Firdaus Friska, Nadya Friska Herry Setiawan Lifwarda Lifwarda Nasrul Nasrul Rahayu, Putri Dwi Ramiati Ramiati Ramiati Ratna Dewi Ratna Dewi Silfia Rifka Sri Nita, Sri Ummul Khair Uzhelia, Viorryn Aisha Uzma Septima Uzma Septima - Yasen, Nadini Mardiah Yulindon

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