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Perancangan Model Sistem Area Parkir Online Dengan Aplikasi Berbasis Mikrokontroler Erby Virta Joseph Paays; Suhartati Agoes; Henry Candra
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 18, Nomor 2, Februari 2021
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.313 KB) | DOI: 10.25105/jetri.v18i2.7721

Abstract

 In general, the parking area system still uses a ticket paper or RFID card as a step to identify a visitor. At this time it’s too hard for finding a parking slot because the visitors can’t look easily for the parking slot, this can be caused by areas with minimal lighting. Although equipped with information on the number of available parking slots or even assisted with lights above each parking slot, that system is still not helpful because of the possibility of greater errors and are difficult to fix when a problem occurs, also to get a parking slot becomes more difficult especially during peak hours which allows increasing traffic or queues in the parking area.  In this research, a parking system was designed with online-based. The visitors will receive an empty parking slot information using their cellphone. In each parking slot, there is a Light Dependent Resistor (LDR) sensor to detect which slot is empty. At the entrance gate, there is an infrared sensor and ESP 8266 module are provided to open the automatic barrier (Barrier Gate). The application that helps provide parking slot location information is expected to facilitate the search for empty parking slots for each visitor, coupled with a wi-fi connection to open the Barrier Gate which makes it easy for residents to enter the parking area. The end of this research is to test the parameters of the Received Signal Strength Indicator (RSSI) by changing the distance. This test is carried out on 2 different operators in order to conclude whether the designed system can work properly and see the response to different operators.Pada sistem wilayah parkir pada umumnya masih menggunakan karcis atau pun kartu Radio Frequency Identification (RFID) sebagai langkah identifikasi pendatangnya. Pada saat ini untuk mendapatkan slot parkir sering kali pendatang mendapatkan kesulitan karena tidak dapat melihat slot parkir dengan mudah. Meskipun sekarang sudah dilengkapi dengan informasi jumlah slot parkir yang tersedia, masih saja sistem tersebut masih kurang membantu karena kemungkinan galat yang lebih besar dan sulit untuk diperbaiki ketika terjadi masalah, bahkan untuk mendapatkan slot parkir menjadi lebih sulit terutama ketika jam sibuk yang memungkinkan menambah kemacetan atau antrian pada area parkir. Dalam penelitian ini dirancang sebuah sistem parkir online. Pengendara dapat menerima informasi slot parkir yang kosong melalui aplikasi. Di setiap slot parkir terdapat sensor Ligth Dependent Resistor (LDR) untuk mendeteksi slot mana yang kosong. Di bagian pintu masuk, diberikan sensor inframerah dan modul ESP 8266 untuk membuka Barrier Gate. Dengan adanya aplikasi yang membantu memberikan informasi lokasi slot parkir diharapkan memudahkan pencarian slot parkir yang kosong untuk setiap pengunjung. Akhir penelitian ini adalah menguji parameter Received Signal Strength Indicator (RSSI) dengan mengubah jarak. Pengujian ini dilakukan pada 2 operator yang berbeda agar dapat disimpulkan apakah sistem yang dirancang dapat bekerja dengan baik dan melihat responnya terhadap perbedaan operator.
Bandwidth Enhancement of 2x1 Microstrip Array Antena Using Slit Technique for Wireless Communication System Erby Virta Joseph Paays; Syah Alam; Indra Sujati
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol. 6 No. 2 (2023): Issues January 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v6i2.8055

Abstract

This study proposes a microstrip array antenna with frequency at of 2.3 GHz – 2.5 GHz for various applications, with smaller antena dimensions. The microstrip antenna designed in this study uses a rectangular patch consisting of two patch elements arranged in a linear array. The type of substrate used is FR-4 with a dielectric constant (εr) = 4.3 and a substrate thickness (h) = 1.6 mm. The feeding technique used is indirect feeding using a microstrip line feed. To increase the bandwidth, the antennas are arranged in an array with 50 ohm and 100 ohm microstrip lines. The simulated antenna parameters are return loss value -10 dB, VSWR 2, and gain value. The simulation results of the two-element array design with a substrate size of 123 mm x 65 mm obtained a return loss value of -27.99 dB at a frequency of 2300 MHz, -15.16 dB at a frequency of 2400 MHz, and -29.29 dB. The bandwidth generated in this study is 460 MHz or an increase of up to 283.3% when compared to a 2x1 antenna array without slit. Furthermore, the addition of slits succeeded in reducing the dimensions of 34.43% compared to 2x1 antenna arrays without slits. This antenna is very useful as a wireless communication receiving antena.