Sri Listia Rosa
Department Of Informatics Engineering, Faculty Of Engineering, Universitas Islam Riau

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Journal : Proceeding of the Electrical Engineering Computer Science and Informatics

Switched Beam Smart Antenna for Wireless Local Area Network Evizal .; Sri Listia Rosa; Eko Supriyanto; Tharek Abd Rahman; Sharul Kamal Abdul Rahim; Ali Moradikordalivand
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 1: EECSI 2014
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1113.349 KB) | DOI: 10.11591/eecsi.v1.381

Abstract

In wireless communication system, interference is one of the issue facing that can disturb in communicating between base station and mobile devices. This paper propose switched beam smart antenna system, an octagonal configuration of directional antenna is introduced and selecting beam to desire user. Each beam of antenna covered 45 degrees; by assembly of all directional antennas to create an omni-directional configuration with coverage all the beam 360 degrees. To control of the beam switching, an inexpensive microcontroller PIC 16F877 from microchip used, radio signal strength of mobile device receive as reference signal and compare to each of beam, the highest signal received is selected than microcontroller will lock to the desire beam. A few samples of received signal strength to be analysis by an algorithm to avoid multiple signals and select actual signal strength received. In this experiment 2.45 GHz ISM band used for the transmitter and receiver and testing have been conducted in outdoor environment. Results shows that switched beam smart antenna working fine base on mobile device location and able to switch the beam while mobile device is moving.
Food Traceability and Security in Supply Chain Using RFID Technology Evizal .; Sri Listia Rosa; Siti Mariyam Shamsuddin; Eko Supriyanto; Wahyudi Sutopo
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 1: EECSI 2014
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (745.853 KB) | DOI: 10.11591/eecsi.v1.413

Abstract

In recent year due to high demand of food product especially agricultural food then supplied from various countries or regions and lands. Some cases facing out such as on delivery, food safety and consumer care. Thus, agricultural food product safety, traceability and monitoring system is required for food product. In this paper propose a system for food traceability and security in supply chain using RFID technology, where a tag attached to every bucket or packet of food product as identification for product source, batch and expire date. Every process in supply chain of food product identified by RFID reader and scanning the tags then all scanned data send to centralized database for product information. In retail store consumer be able to check food product detail especially expire date and in case of food issues happen supplier easly identified source of product. Beside identification and product safety, delivery can be monitoring by agent as every bucket tagged by an RFID tag. By using this system benefit for the consumer, supplier and authority for identification and monitoring system.
Application of NFC Technology for Cashless Payment System in Canteen Evizal Abdul Kadir; Siti Mariyam Shamsuddin; Sri Listia Rosa
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 2: EECSI 2015
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.991 KB) | DOI: 10.11591/eecsi.v2.773

Abstract

In a campus community, mostly is younger people andstay in University hostel without cooking facilities then have to getfrom canteen for foods and beverages. In office hour with limitedbreak time either breakfast or lunch everyone is rushing to get foodand crowded situation are happen. One of the issues is paymentsystem use manually (cash) and queue at the cashier to pay foods,sometime need to wait a few minute until to get the turn. Cashlesspayment such as token or credit system is implementing in some ofrestaurant and food courts but does not applicable in Universitycanteen that most of customers are students with small transaction,only a few dollars and cents. Nowadays, mobile phone or smartphone is not a luxury thing and most of student carries it for phonecall, message, email, or browsing internet. Most of smart phone alsoembedded with Near Field Communication (NFC) reader inside thephone, thus by using this phone with NFC enable to do paymentsystem at the canteen. The credit is deducted from mobile phonebalance for pre-paid system or billed in monthly for postpaid andthis system have working together to the cellular phone operator.Confirmation on payment system is shows whether customerapprove payment or not then a notification is sent to user.With thissystem be able to overcome several issues such as queue at cashierfor payment and risk of student to carry cash money while buyingfoods.
Car Engine Storage and Spare Parts Management System Using RFID Technology Evizal Abdul Kadir; Siti Mariyam Shamsuddin; Sri Listia Rosa
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 2: EECSI 2015
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.309 KB) | DOI: 10.11591/eecsi.v2.808

Abstract

very year, demanding of spare parts for vehicle isincreasing together to the number of cars, thus spare parts toreplacing faulty component also high demand. Every workshopneed to keep spare parts for replacing breakdown vehicle or someworkshop request spare parts to store it. Base on that, a good spareparts management and storage system is required for effective andfaster service to thecustomer. This paper discuss on the use ofRadio Freqeuncy Identification (RFID) for car engine storage andspare parts management system using RFID technology, because ofits advantages compare to others technology which is no line ofsight required and multiple reading. Every spare parts or enginetagging by an RFID tag which is programmed early with uniqueidentity, then store to a central database for stock and inventorysystem. Testing havebeen conducted an shows reduce on reading performance becauseof most spare parts and engine made from metal material thuseffected to RFID reading performance. A new technique used forRFID tag before tagging which is make some gap from the engineor spare parts to avoid RFID signal absorve by metal material. Theother way is used high gain antenna andRFID reader for faster and powerfull reading. Results showsimprovement on reading distance and performance compare to theprevious tagging technique and tagging placement.
Application of LoRa WAN Sensor and IoT for Environmental Monitoring in Riau Province Indonesia Evizal Abdul Kadir; Akmar Efendi; Sri Listia Rosa
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 5: EECSI 2018
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (778.267 KB) | DOI: 10.11591/eecsi.v5.1643

Abstract

Land and forest fires especially in Riau Province, Indonesia, have affected the length and breadth of Indonesia. The fires are normally hampered by seasonal dry conditions such as El Nino effect. In addition, the haze has affected the neighboring countries such as Malaysia, Singapore and south of Thailand. The effects of haze on human health as reported in that particular year were about 20 million people have suffered from respiratory problems and serious deterioration in overall health. There were other effects on environment, economy, flora and fauna in Southeast Asia region due to this disaster. This research proposes to develop a smart monitoring system using Long Range Wide Area Network (LoRa WAN) with low power wireless data communication and Internet of Things (IoT) technology. With LoRa technology, data can be transmitted up to 30 miles which is worthwhile to cover some of Riau Province that have been badly impacted by this disaster. In this article propose to develop sensors system that capable of detecting land and forest fire. The sensors will be located at several locations that has badly impacted previously. LoRa IoT Technology will be deployed to provide a platform for connecting the sensors. An early indication of land or forest fires is vital for quick prevention before they become uncontrollable and overwhelming. The design and development of LoRa sensors give high feasibility to overcome current issues in Riau Province because of land and forest fire.
River Water Pollution Monitoring using Multiple Sensor System of WSNs Evizal Abdul Kadir; Hitoshi Irie; Sri Listia Rosa
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 6: EECSI 2019
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v6.1994

Abstract

The river is a natural phenomenon thatcommonly available in the tropical region because of rainintensity. Many peoples and community like to live along theriverside for a few decades ago. The river used by thecommunity for transportation and daily activities uses riverwater. In this research objective to design and develop a newsystem with multiple sensors system to monitor river waterpollution because most of the people use it. Wireless SensorNetworks (WSNs) used in this design and developmentbecause of advantages WSNs system, multiple sensor nodesinstalled for detection of water pollution such as watertemperature, pH, electrical conductivity (EC) and dissolvedoxygen (DO). The system designed to be able to monitorriver water pollution parameters and send the information tothe data center (backend system). Arduino microcontrollerused to process and filtering the data before sending to thebackend system, only valid and valuable information tocollect and keep in the database. Results show system be ableto detect polluted water with indicating parameters andshows in a graph. Based on analysis can be concluded thatpolluted water indicator mostly from residence waste andindustry. Furthermore, WSNs sensors will deploy in somearea then compare the results each other.