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JREC (Journal of Electrical and Electronics)
Published by Universitas Islam 45 Bekasi
ISSN : 23025883     EISSN : 25500899     DOI : -
Core Subject : Engineering,
Electrical & Electronics Engineering
Arjuna Subject : -
Articles 182 Documents
 11   12   13   14   15 
PROTOTIPE ANTENA MIKROSTRIP FEED SLOT LOOP BERFREKUENSI MILIMETER WAVE UNTUK TEKNOLOGI 4G LTE Asrika, Sukwati Dewi; Marini, Sri; Paryati, Ninik
JREC (Journal of Electrical and Electronics) Vol 7 No 2 (2019): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.164 KB)

Abstract

Teknologi 4G LTE membutuhkan antena yang bekerja pada frekuensi 1,8 GHZ - 5 GHZ. Pada Penelitian ini merancang Antena mikrostrip wide-band T tranformer slot loop patch persegi berfrekuensi milimeter wave berkerja pada range frekuensi 2 GHz - 5 GHz. Geometri antena 12 x 18
Antena Mikrostrip Patch Square Double Slit Metode Proximity Couple Untuk Teknologi 5G Waridhah, Sunilam; Marini, Sri; Bakri, Muhammad Amin
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2199

Abstract

Fifth generation (5G) cellular communication system needs more require higher data rate. One of the major innovations in 5G system is to utilize the millimeter wave (mm-wave) spectrum above 24 GHz together with a beam-controlled phased array antenna. This study aims to design a microstrip antenna with a working frequency of 24.25 GHz- 27.5 GHz with a bandwidth of 3.25 GHz. The patch used is a square double slit and given a U-shaped slot that can change the parameter value, the proximity coupled rationing method with an impedance value (ZL) of 50 Ohms. This microstrip antenna design uses double side PCB RTD Duroid 5880 series dielectric material. The selection of RT Duroid 5880 has a thickness of 1.575 mm, and the dielectric constant value of 2.2 as a substrate is considered suitable for high frequencies (above 10 GHz). The conductor material uses copper with a thickness of 0.035 mm. This study produces dimensional simulation before and after optimization of the working frequency of 26 GHz. Before optimization, the return loss value was -6,625 dB, VSWR 2.7481 and gain 5 dBi. Once optimal, the resulting loss value is -15,821 dB, VSWR 1.3861 and a gain value of 10.1 dBi. Antenna that has been manufactured, is implemented on wifi modem, where the modem The manufactured antenna is implemented on a Wi-Fi modem, where the modem specifications are in 4G. Antenna 5G installed on a wifi modem is still proven to be connected and can be used to access the internet. but the 5G antenna that is attached to the wifi modem can still be connected and can be used to access the internet.
Perancangan Sistem Pemesanan Barang dan Jasa Berbasis IoT (Studi Kasus Pratama Laundry) Ariyanto, Aditya Ichsan; Suryadi, Budi; Supratno, Setyo
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2200

Abstract

Laundry is a service that is growing very fast. The demands for laundry services in urban areas are very high since its start to become daily necessity. Currently, laundry services are still limited to manual services, where consumers will come directly or contact a laundry employee to pick up. It requires a process and time which is considered quite complicated. Other problems that arise are related to bookkeeping and the possibility of missing data from consumer orders because there is no real time order data. Researchers conducted research with the aim of designing an IoT-based laundry service ordering tool that utilizes Wemos D1 mini, so that order data can be sent in real time to Telegram. The research was conducted by taking a case study "Pratama Laundry" by taking data from consumers who ordered via touch sensor or google voice to be sent to Telegram.
Kinerja Robot Self Balancing pada Lintasan Bergelombang Menggunakan Pengendali PID Digital Cendana, Bayu; -, Sugeng; Sikki, Muhammad Ilyas
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2201

Abstract

A two-wheeled self-balancing robot is a mobile robot with two wheels on each side. It is equipped with a controller which balances it. A PID controller can be used to control robot’s position so that it can move steadily in bumpy surfaces. Its PID controller moves by calculating suitable proportional constant (Kp), constant integral (Ki) and derivative constant (Kd) using trial and error method. The analysis of controlling system is based on three aspects of analysis; transient response analysis, steady state response analysis, and stability analysis. The results of present research show that the robot maintained its balance when it moved on a bumpy surface with Kp of 50, Ki of 170 and Kd of 2,2. The analysis of PID parameter suggests that the response of self balancing robot is categorized as overdamped with the percentage of error steady state of1,02% while its stability is categorized as marginally stable.
Desain Perilaku Home Position Pada Robot Soccer Dan Kursi Bergerak Otonom Menggunakan Algoritma Q-Learning Hasad, Andi; Hanafi, Yusuf; Sartika, Risa
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2202

Abstract

Robot soccer is a type of wheeled car robot that has complexity in the design of the robot. The complexity in the design of the robot makes research development in the field of robotics increasing. This study discusses home position behavior (back to its original point) using the Q-learning algorithm which is implemented on robot soccer. Behavior system is implemented, the robot can move randomly in tracing the color box area to reach the target point. On the other side, using a chair as an object that will be randomly controlled with the Q-Learning algorithm combined with a webcam camera as a sensor to detect the color of the robot's movement area. Color acts as an initial identification so that the robot easily recognizes and knows the target point and area of ​​its movement. From the results of tests that have been done, the optimal behavior of robots to reach the target point is purple-yellow-blue with a value of Q = 5.13 and the time response value is time peak (tp) = iteration 12, time rise (tr) = iteration 8, time settling (ts) = iteration 9, time delay = iteration 6, and the value of the steady state error = 0, while in an autonomous moving chair with a value of Q = 5.13, the number of iterations 9, the number of steps is small and the response time response as follows: time rise (tr) = 9 iterations, time peak (tp) = 7 iteration, time settling (ts) = 9 iterations, delay time (td) = 6 iterations and the steady state error value is zero (0) on the 9th iteration.
Analisis dan Perancangan U-Slot Patch Single Layer Microstrip Antenna 2,4 GHz pada Teknologi Zigbee Marini, Sri; Asrika, Sukwati Dewi; Handayani, Dwipa; Mhammadin, Habib
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2204

Abstract

The antenna is the most important part in a wireless communication system. Microstrip one type of antenna that has practical size and dimensions that are simple and easy to fabricate. In this research, we designed and analyzed two slit single layer microstrip antennas for Zigbee technology applications that operate in the 2.4 GHz band. Today, this application has become important for everyday use in industry and home automation, in small areas due to low power requirements for operation and long battery life. The antenna is built on FR-4 epoxy substrate with a thickness of 1.6 mm and εr = 4.4. Antennas operating at 2.4 GHz Resonance frequency have a VSWR value of 1.8 and a Returnloss value of -11 dB with a Vertical radiation pattern, resulting in a narrow impedance bandwidth that can protect the Antenna against interference from other applications in the ISM band. The antenna produced has a patch size of 5.2 cm × 5.2 cm2 with a slit distance of 1 mm. Antennas have advantages in simple design, narrow bandwidth, and their compact size and ease of publication, the test results of the parameters-Parameters, the antenna has met the qualifications of a good antenna standard for zigbee technology.
Robot Penyiram Tanaman Otomatis Berbasis App Inventor Suwandi, Agus; Paronda, Abdul Hafid; Sujatmiko, Aeri
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2222

Abstract

The development of automation technology nowadays has allowed humans to do many things remotely, including daily activity such as watering plants. This study combines a mobile robot as a plant sprinkler and a smartphone as a remote control that uses Bluetooth as the connectors. Users can water plants remotely by using an application created with the App Inventor to control the Mobile Robot which is in charge of watering the field. Based on the test results, the sprinkler robot produces a current of 2 A and a voltage of 12 V with the heaviest water load that can be carried is 1 liter. The more water that is carried, the greater the measured voltage and current. The App Inventor application created successfully runs the sprinkler robot with an average delay of 1 second and the farthest distance is 5 m using a bluetooth module.
Private Cloud Storage Pada Virtual Server Menggunakan IP Public Dinamis Irwan, Dadan; Supian, Irfan
JREC (Journal of Electrical and Electronics) Vol 8 No 2 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i2.2341

Abstract

Setiap konsumen Internet service provider yang berlangganan jaringan Internet memperoleh sebuah IP Public yang bersifat dynamic. IP Public dynamic terpasang pada setiap router ketika dihidupkan sehingga dimungkinkan IP Public tersebut selalu berubah. Penelitian ini bertujuan untuk memanfaatkan IP Public dynamic dalam membangun private cloud storage dengan menggunakan server secara virtual berbasis Proxmox VE 4.3. Tahapan penelitian dilakukan mulai dari pembuatan virtual server pada aplikasi hypervisor Proxmox VE 4.3. Langkah selanjutnya melakukan proses implementasi berbagai aplikasi server yang diperlukan. Hasil pengujian diperoleh bahwa private cloud storage dapat berjalan dengan baik ketika client melakukan akses baik menggunakan IP Address maupun domain name. Client dapat menggunggah file ke sistem dan terjadi sinkronisasi pada dua perangkat yang berbeda yaitu pada computer client dan smartphone. Simpulannya IP Public yang bersifat dinamis dapat digunakan untuk membangun private cloud storage dan mampu menyimpan data sehingga dapat diakses pada jaringan Internet.
Rancang Bangun Prototype Electrostatic Precipitator (ESP) Sebagai Penangkap Debu Asap Paska Pengelasan Ningrum, Hanifah Nur Kumala; Artono, Budi; Haryo, Raden Jasa Kusumo; Ardiansyah, Soni Dwi
JREC (Journal of Electrical and Electronics) Vol 8 No 2 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i2.2349

Abstract

Residu pengelasan berupa debu dan asap dapat diatasi dengan menggunakan electrostatic precipitator. Alat ini bekerja dengan memanfaatkan polarisasi partikel bermuatan positif (collecting plate) dan negatif ( dari discharge electrode). Ion negatif setelah melewati jaring dan tertarik kedalam plate yang bermuatan positif. Perancangan ini meliputi pembangkit tegangan tinggi DC dan perancangan box penyaringan asap. Pembangkit tenaga tinggi DC pada alat ini menggunakan metode pengali tegangan cockroft – walton 2 tingkat dan 4 tingkat. Kapasitor yang digunakan adalah tipe 1
Alat Penyiram dan Monitoring Tanaman Cabai Berbasis Internet of Things Menggunakan Wemos D1 R3 Dan Aplikasi Thingspeak Alfian Barik, Muhammad Zidni; Hidayat, Wahyu; Hasad, Andi; Sikki, Muhammad Ilyas; Sujatmiko, Aeri
JREC (Journal of Electrical and Electronics) Vol 8 No 2 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i2.2483

Abstract

Cabai merupakan salah satu komoditas sayuran dan banyak dibudidayakan oleh para petani di Indonesia, karena memiliki nilai jual yang cukup tinggi, serta memiliki beberapa manfaat bagi kesehatan manusia. Selain itu, cabai merupakan tumbuhan yang mudah ditanam pada daerah dataran rendah dan juga pada daerah dataran tinggi. Agar tanaman cabai tumbuh dan menghasilkan cabai yang baik, maka perlu menjaga kelembaban tanah. Kelembaban tanah yang dibutuhkan cabai yaitu 60%-80%. Selain itu, untuk mengetahui kelembaban tanah tanpa bantuan alat akan sulit untuk diketahui. Maka dari itu dibutuhkan alat yang dapat melakukan penyiraman secara otomatis dan dapat mengetahui kelembaban tanah. Konsep alat ini menggunakan teknologi Internet of Things (IoT) yang kontrol penyiramannya dilakukan secara otomatis dan monitoring kelembaban tanah menggunakan aplikasi yang diakses melalui komputer dan handphone. Alat ini menggunakan perangkat keras berupa mikrokontroller Wemos D1 R3 sebagai pusat kontrol, Capacitive Soil Moisture Sensor v1.2 untuk mengukur kelembaban tanah, sensor DHT22 untuk mengukur suhu udara dan kelembaban udara, relay sebagai saklar untuk menghidupkan dan mematikan pompa air, LCD 20x4 untuk menampilkan hasil pengukuran sensor kelembaban tanah dan sensor DHT22, dan status pompa air. Untuk monitoring kelembaban tanah, suhu udara, dan kelembaban udara yang diakses menggunakan internet melalui komputer menggunakan aplikasi Thingspeak dan monitoring pada handphone menggunakan aplikasi ThingView. Penyiraman dilakukan secara otomatis jika kelembaban tanah dibawah 60% dan penyiraman akan berhenti jika kelembaban tanah diatas 60%.

Page 13 of 19 | Total Record : 182

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