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29,758 Article Results

Implementation of flow control over WirelessHART sensor network using WirelessHART adaptors

10.11591/ijeecs.v15.i2.pp910-919
Sabo Miya Hassan , Kishore Bingi , Rosdiazli Ibrahim , Lim Jin Chein , ThasarathaRao Supramaniam
Despite the advantages of the industrial wireless standards such as WirelessHART, ISA100.11a and Wireless Networks for Industrial Automation-Process Automation (WIA-PA), their application still faces a lot of challenges especially when it comes to interfacing with the real plant. This is due to lack of adequate infrastructures such as interfacing circuitry to establish communication between the WirelessHART nodes and the actuators and sensors. Therefore, this paper presents the application of locally developed WirelessHART adaptors for flow process control. The adaptors serve as an interface between the WirelessHART network and the sensor and actuator of the plant. Experimental results of the controllers compared showed that wireless control is possible through the use of the adaptors.
Volume: 15
Issue: 2
Page: 910-919
Publish at: 2019-08-01

IoT recycle management system to support green city initiatives

10.11591/ijeecs.v15.i2.pp1037-1045
Ruwaida Ramly , Aznida Abu Bakar Sajak , Muhaira Rashid
In July 2009, Government of Malaysia had launched Green Technology Policy as new initiatives from Malaysia to handle greenhouse effect issue and energy usage through application and green technologies development to reduce carbon footprint. This project, Internet of Things (IoT) Recycle Management System is an idea to help the government in gearing the nation towards this aim with a developed system or technology that support green environment. For this paper, the intended cities are Putrajaya and Cyberjaya areas since both of these cities are chosen as a pioneer for the Green City Initiatives by the Government. This Arduino based Internet of Things (IoT) project is an upcoming urban technology that transforms everyday current recycling system into an ecosystem that would enrich our lives and make it exciting to recycle things anywhere. Hence, encourages Malaysian to recycle their things regularly and make it as a normal routine. This project consists of the development of recycle waste bin that have sensor-based and a database with webpage system for client interface which be connected via Internet network. This project has a huge prospect to be implemented in the future, should there be a collaboration with Government entities and Non- Government entities as this effort needs huge support from all Malaysians in order to realize first class mentality transformation.
Volume: 15
Issue: 2
Page: 1037-1045
Publish at: 2019-08-01

Design of P-shaped microstrip patch antenna for wireless communication systems

10.11591/ijeecs.v15.i2.pp861-869
Raad H. Thaher , Noor Baqir Hassan
A P-shaped microstrip patch antenna is proposed and studied to obtain operating bandwidth of (5.883-9.9) GHz. Then the antenna is extended by etching slots in the ground plane to be (5.73 – 10.234) GHz and gain varies from 2.809 dBi to 4.947 dBi. The antenna is installed on FR-4 substrate having relative dielectric constant of  = 4.3 and loss tangent of 0.02. The antenna size is (30×30×1.6)  simulation results were obtained using CST software 2016. The proposed was fabricated and tested by vector network analyzer VNA and noted reasonable agreement between simulated and measured result.
Volume: 15
Issue: 2
Page: 861-869
Publish at: 2019-08-01

Automated library booktruck for traditional libraries

10.11591/ijeecs.v15.i2.pp1095-1101
JJ Spies , B Kotze
Libraries are an integral part of our society’s knowledge repository and even though technological advances such as the internet, smart devices and an ‘always-connected-society’, provide avenues for fast and almost instantaneous access to knowledge, libraries still provide a physical place for the collection and dissemination of knowledge. The prompt shelving of the physical returned library books is an important task in any traditional library. To help speed up the shelving process, this paper proposed and simulated an automated booktruck that is capable of moving returned library books from the return desk back to the shelves. The simulation models currently available robotic hardware and implemented path finding and localization. The simulation results showed that returned books can be delivered to the shelves four times faster than the by using the current practices.
Volume: 15
Issue: 2
Page: 1095-1101
Publish at: 2019-08-01

Solution of distributed generation allocation problem using a novel method

10.11591/ijeecs.v15.i2.pp554-564
A. Y. Abdelaziz , S. F. Mekhamer , R. H. Shehata
In this paper, A novel optimization technique called whale optimization algorithm (WOA) is modified, used and implemented to find the best possible solution to the problem of optimal locating and sizing of Distributed Generation (DG) resources such as photovoltaic cells, fuel cells and kVAR compensators in radial distribution feeders. The modified technique is used for the first time to solve this kind of optimization problem which includes optimal sizing and location of DG units in radial distribution feeder.The proposed method is applied to two different test distribution feeders (15 bus and 33 bus test systems) using different DG types and the acquired results are analyzed and compared to other modern optimization methods to confirm that they give the best results, lowest system real power losses and highest voltage profile improvement among the other modern methods implemented on the same test systems.
Volume: 15
Issue: 2
Page: 554-564
Publish at: 2019-08-01

Simulated evaluation of new switching based median filter for suppressing SPN and RVIN

10.11591/ijeecs.v15.i2.pp688-696
Vorapoj Patanavijit , Kornkamol Thakulsukanant
In the past two decades, the SPN (salt and pepper noise) suppressing method is worldwide interested researches on computer vision and image processing hence many SPN suppressing methods have been proposed. In general, the primary goal of SPN removal method is the suppressing of SPN in digital images thereby one of the recent effective and powerful SPN suppressing methods is a new switching-based median filtering (NSMF), which is innovated for suppressing high density SPN. Consequently, this paper thoroughly examines its efficiency and constrain of a new switching-based median filtering when this filter is used for contaminated image, which is synthesized by SPN and RVIN (random-value impulsive noise). In these simulations, six well-known images (Lena, Mobile, Pepper, Pentagon, Girl, Resolution) with two impulsive noise classes (SPN and RVIN) are used for measuring the its efficiency and constrain. An evaluation of the efficiency is conducted with many previous methods in forms of subjective and objective indicators.
Volume: 15
Issue: 2
Page: 688-696
Publish at: 2019-08-01

Terrestrial free space optical communications in Bangladesh: transmission channel characterization

10.11591/ijece.v9i4.pp3130-3138
Kazi Shahiduzzaman , Majumder F. Haider , Bijoy K. Karmaker
This research work focused on transmission channel characterization of Free-Space-Optical (FSO) communications technology for deploying in the developing country like Bangladesh. To meet the tremendous amount of data traffic, mobile operators and ISPs need better solution than the existing RF and fiber optic communications. Moreover, Bangladesh is entering in the era of satellite communications by launching its own satellite.  So, Bangladesh needs such communication technology that provides higher channel bandwidth, sophisticated transmission security and can cope channel dispersion. FSO is a good candidate that can meet all these features. The transmission channel characterization plays a significant role in optimizing the performance of FSO link.  In this work, the channel characterization of FSO technology from the weather perspective of Bangladesh has been investigated thoroughly. The obtained results show that the atmospheric scattering effect does not hamper the short range FSO link performance, whereas, the atmospheric turbulence effect is not favorable to deploy FSO technology with reasonable quality signal unless it is optimized properly using antenna aperture averaging technique.
Volume: 9
Issue: 4
Page: 3130-3138
Publish at: 2019-08-01

Fractal representation of the power demand based on topological properties of julia sets

10.11591/ijece.v9i4.pp2831-2839
Hector A. Tabares-Ospina , John E. Candelo-Becerra , Fredy E. Hoyos Velasco
In a power system, the load demand considers two components such as the real power (P) because of resistive elements, and the reactive power (Q) because inductive or capacitive elements. This paper presents a graphical representation of the electric power demand based on the topological properties of the Julia Sets, with the purpose of observing the different graphic patterns and relationship with the hourly load consumptions. An algorithm that iterates complex numbers related to power is used to represent each fractal diagram of the load demand. The results show some representative patterns related to each value of the power consumption and similar behaviour in the fractal diagrams, which allows to understand consumption behaviours from the different hours of the day. This study allows to make a relation among the different consumptions of the day to create relationships that lead to the prediction of different behaviour patterns of the curves.
Volume: 9
Issue: 4
Page: 2831-2839
Publish at: 2019-08-01

Daily Peak Load Forecast Using Artificial Neural Network

10.11591/ijece.v9i4.pp2256-2263
Ramesh Kumar V , Pradipkumar Dixit
The paper presents an Artificial Neural Network (ANN) model for short-term load forecasting of daily peak load. A multi-layered feed forward neural network with Levenberg-Marquardt learning algorithm is used because of its good generalizing property and robustness in prediction. The input to the network is in terms of historical daily peak load data and corresponding daily peak temperature data. The network is trained to predict the load requirement ahead. The effectiveness of the proposed ANN approach to the short-term load forecasting problems is demonstrated by practical data from the Bangalore Electricity Supply Company Limited (BESCOM). The comparison between the proposed and the conventional methods is made in terms of percentage error and it is found that the proposed ANN model gives more accurate predictions with optimal number of neurons in the hidden layer.
Volume: 9
Issue: 4
Page: 2256-2263
Publish at: 2019-08-01

A New Design of Capacitive Power Transfer Based on Hybrid Approach for Biomedical Implantable Device

10.11591/ijece.v9i4.pp2365-2376
Zaki Mustapa , Shakir Saat , Yusmarnita Yusof
This paper presents the development of a new design method of capacitive power transfer (CPT) which is based on hybrid concept for Biomedical Implants. This method is able to improve various issues found in the widely used CPT system that is bipolar CPT method. Based on the ability of this purposed, the simulation of the CPT system has been designed to prove an amount of power transferred through a layer of tissue. The design used to validate the suggested model which to powering implanted device, and it was performed with 3cm square plates, which have a layer of beef with the 5mm thickness in between 2 coupling plate. Power signal was generated by Class E zero voltage switching. The Class E zero voltage switching has been designed to generating alternate current with the 1MHz frequency appropriate to the hybrid CPT system specification. 
Volume: 9
Issue: 4
Page: 2365-2376
Publish at: 2019-08-01

Homogeneous Components of a CDH Fuzzy Space

10.11591/ijece.v9i4.pp2691-2694
Samer Al Ghour
We prove that fuzzy homogeneous components of a CDH fuzzy topological space  (X,T) are clopen and also they are CDH topological subspaces of its 0-cut topological space (X,T0).   
Volume: 9
Issue: 4
Page: 2691-2694
Publish at: 2019-08-01

Sliding mode control-based system for the two-link robot arm

10.11591/ijece.v9i4.pp2771-2778
Trong-Thang Nguyen
In this research, the author presents the model of the two-link robot arm and its dynamic equations. Based on these dynamic equations, the author builds the sliding mode controller for each joint of the robot. The tasks of the controllers are controlling the Torque in each Joint of the robot in order that the angle coordinates of each link coincide with the desired values. The proposed algorithm and robot model are built on Matlab-Simulink to investigate the system quality. The results show that the quality of the control system is very high: the response angles of each link quickly reach the desired values, and the static error equal to zero.
Volume: 9
Issue: 4
Page: 2771-2778
Publish at: 2019-08-01

Parallelising reception and transmission in queues of secondary users

10.11591/ijece.v9i4.pp3221-3227
Lak Sad
In a cognitive radio network, the secondary users place the packets to be transmitted on a queue to control the order of arrival and to adapt to the network state. Previous conceptionsassigned to each secondary user a single queue that contains both received and forwarded packets. Our present article divides the main queue into two sub queues: one to receive the arrived packets and the other to transmit the available packets. This approach reduces the transmission delay due on the one hand; to the shifting of data placed on the single queue, and on the other hand; to the sequential processing of reception and transmission, in theprevious designs. All without increasing the memory capacity of the queue, in the new approach.
Volume: 9
Issue: 4
Page: 3221-3227
Publish at: 2019-08-01

The analysis of facial feature deformation using optical flow algorithm

10.11591/ijeecs.v15.i2.pp769-777
Dayang Nur Zulhijah Awang Jesemi , Hamimah Ujir , Irwandi Hipiny , Sarah Flora Samson Juan
Facial features deformed according to the intended facial expression. Specific facial features are associated with specific facial expression, i.e. happy means the deformation of mouth. This paper presents the study of facial feature deformation for each facial expression by using an optical flow algorithm and segmented into three different regions of interest. The deformation of facial features shows the relation between facial the and facial expression. Based on the experiments, the deformations of eye and mouth are significant in all expressions except happy. For happy expression, cheeks and mouths are the significant regions. This work also suggests that different facial features' intensity varies in the way that they contribute to the recognition of the different facial expression intensity. The maximum magnitude across all expressions is shown by the mouth for surprise expression which is 9x10-4. While the minimum magnitude is shown by the mouth for angry expression which is 0.4x10-4.
Volume: 15
Issue: 2
Page: 769-777
Publish at: 2019-08-01

Novel framework of retaining maximum data quality and energy efficiency in reconfigurable wireless sensor network

10.11591/ijece.v9i4.pp2893-2901
B. Prathiba , K. Jaya Sankar , V. Sumalatha
There are various unseen and unpredictable networking states in Wireless Sensor Network (WSN) that adversely affect the aggregated data quality. After reviewing the existing approaches of data quality in WSN, it was found that the solutions are quite symptomatic and they are applicable only in a static environment; however their successful applicability on dynamic and upcoming reconfigurable network is still a big question. Moreover, data quality directly affects energy conservation among the nodes. Therefore, the proposed system introduces a simple and novel framework that jointly addresses the data quality and energy efficiency using probability-based design approach. Using a simplified analytical methodology, the proposed system offers solution in the form of selection transmission of an aggergated data on the basis of message priority in order to offer higher data utilization factor. The study outcome shows proposed system offers a good balance between data quality and energy efficiency in contrast to existing system.
Volume: 9
Issue: 4
Page: 2893-2901
Publish at: 2019-08-01
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