Bahria University Journal of Information & Communication Technologies (BUJICT)

Cloud Computing Serving as a Solution to the IoT Generated Data

2019-08-29T05:47:51-06:00

Nowadays all the devices seem to be connected to the Internet. There are billions and billions of IoT devices. These devices create an immense amount of data. IoT devices have limited processing capabilities and storage, and to handle all the data generated from billions and billions of these devices is a task itself. In this paper, the challenges imposed by the IoT devices will be discussed and how its integration with the Cloud Computing helps, would also be explored. The paper presents the integration of the IoT with the Cloud, its advantages and problems are highlighted. Handling the Big Data generated by IoT devices poses a problem and it is quite a significant one, it is one of the few problems presented in this paper. A possible solution to handle all the Big Data is also proposed.

Simulation of Piezoelectric Actuator using ANSYS

2019-08-29T07:11:33-06:00

Devices deals with electrical and mechanical components are known as microelectromechanical system (MEMS) and leads to microfluidic. Such devices have shown promising results over the last few years in automotive, robotics and medical fields. This paper discusses overview of piezoelectric actuator having polydimethylsiloxane (PDMS) membrane attached with piezoelectric disk. ANSYS has been used for simulation and analysis. The alternating voltage of 25 V-150V with frequency of 250 Hz has been applied on piezoelectric actuator. The performance of actuator quantities such deflection, stress were explored. This obtainable research paper offers useful data to develop the enhanced design of MEMS based piezoelectric actuator.

Study and Comparison of Various FPGA-based Fault Injection Tools with RASP-FIT Tool for HDL Designs

2019-08-29T05:47:51-06:00

Fault injection technique is the most popular technique for characterising the dependability parameter of Very Large Scale Integrated (VLSI) systems and designs. Due to technology scaling, FPGA systems are also prone to error and failure; hence fault injection tools play a vital role to test and evaluate dependability parameters. These tools are categorised into two techniques; reconfiguration and instrumentation-based techniques for FPGA fault injection tools. The primary focus is put on instrumentation-based fault injection tools and techniques in this paper. In the instrumentation technique, a specific circuit is appended to the original design to carry out fault injection analysis. This paper presents the comparison between various fault injection tools based on methodology, fault models consideration, fault injection control unit and functions they perform.

Design and Development of Energy audit and Load Management system

2019-08-29T05:47:51-06:00

Under developed countries are mainly suffering from two basic problems in the energy sector i.e. load shedding and energy management. These problems continuously hit back to a country’s economy and badly affect the performance of their industries. Therefore, the well-known industrialists are packing up their bags from these under developed countries and migrating towards countries like Bangladesh where an industry is given priority and is being facilitated. However, load shedding can be avoided by good administration and with the utilization of full resources available in a country, more over a collective effort is also required to overcome the problem of energy management. Energy management plays an important role in reducing energy requirements per unit of output. The goal of energy management can be achieved by performing energy audit that determines how and where energy is utilized and identifies the methods for energy savings. In this paper, a brief analysis of energy consumption, demand, losses and recommended necessary steps for the betterment of this energy crisis are discussed. Furthermore, a hardware device is designed and proposed to perform a fully atomized energy audit. This device can be connected to the main supply to analyze and notice the power consumed by each particular electrical appliance and to show their behavior on a monitor screen in form of graphical representation.

Advanced Robust Control Techniques: Comparison and Application to a second order highly nonlinear system

2019-08-29T07:06:54-06:00

Robust integral of sign of error (RISE) is a relatively
new control technique. It has been applied to several nonlinear
systems. However its efficacy in comparison to existing robust
control techniques is yet to be established. Terminal sliding mode
control (TSMC) is a well known robust control technique, which
belongs to the family of Sliding Mode Control. This paper deals
with the application of RISE and TSMC to control of a well
known and highly nonlinear system - the inverted pendulum for
comparison of these two techniques. The comparison is made
on the basis of time response, control energy and tracking
performance. It is reported that TSMC gives faster response
with lower control energy and better tracking performance as
compared to RISE based control.