Past Issue


Vol. 3 No. 2 2018

Smarphone Ad-hoc Network Adoption using Zombie Application and Assessment of MAC Address Spoofing Original Research Article

Pages 45-48
S. Mythili, E. Shalini, A.M. Shriram

Abstract

This great hectic world has filled with enormous things which are unusual or atypical at times, simply called as crisis. It can be prevented or lessened if critical knowledge is identified in advance. Due to the happening of natural or man-made disasters there is a possibility for the people located in that zone gets trapped and difficult to survive by the traditional cellular network destruction which makes paltry communication . At that instant the communication can be carried out by creating a Smartphone ad-hoc network through Wireless Fidelity (Wi-Fi) using the developed android application named as “Rescue-chat”. This application has developed by having the Android studio as a central platform and it is applicable for timely communication in-case of any panic situation. The extensive view of this work is also focused on security of Wi-Fi access though analyzing the MAC address spoofing which is feasible in wireless network.

Smarphone Ad-hoc Network Adoption using Zombie Application and Assessment of MAC Address Spoofing

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Design and Performance Comparison of 8-bit Multiplier Original Research Article

Pages 49-54
Prabu Venkateswaran, V. Singaravelan, V. Nandhinim, S. Mithra

Abstract

With the advancements in the semiconductor industry, designing a high performance processor is a prime concern. Multiplier is one of the most crucial parts in almost every digital signal processing applications. This paper addresses the implementation of an 8-bit multiplier design employing CMOS full adder, full adder using Double Pass Transistor (DPL) and multioutput carry look ahead logic (CLA). DPL adder avoids the noise margin problem and speed degradation at low value of supply voltages associated with complementary pass transistor (CPL) logic circuits. Multioutput carry look ahead adder leads to significant improvement in the speed of the overall circuitry. The investigation is carried out with simulation runs on HSPICE environment using 90 nm process technologies at 25 °C. Finally, the design guidelines are derived to select the most suitable topology for the desired applications. Investigation reveals that multiplier design using multioutput carry look ahead adder proves to be more speed efficient in comparison with the other two considered design strategies.

Design and Performance Comparison of 8-bit Multiplier

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Secured e-Voting System Original Research Article

Pages 55-58
Anitha.A, Ishwarya.D, Janani.S,Jagadeeswari.M

Abstract

With the advancements in the semiconductor industry, designing a high performance processor is a prime concern. Multiplier is one of the most crucial parts in almost every digital signal processing applications. This paper addresses the implementation of an 8-bit multiplier design employing CMOS full adder, full adder using Double Pass Transistor (DPL) and multioutput carry look ahead logic (CLA). DPL adder avoids the noise margin problem and speed degradation at low value of supply voltages associated with complementary pass transistor (CPL) logic circuits. Multioutput carry look ahead adder leads to significant improvement in the speed of the overall circuitry. The investigation is carried out with simulation runs on HSPICE environment using 90 nm process technologies at 25 °C. Finally, the design guidelines are derived to select the most suitable topology for the desired applications. Investigation reveals that multiplier design using multioutput carry look ahead adder proves to be more speed efficient in comparison with the other two considered design strategies.

Secured e-Voting System

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Smart Follower and Direction Specifier using Kinect Sensor Original Research Article

Pages 59-64
Manjari, E, Nishanthi, R, Nivetha, T, Bini Joy

Abstract

A shopping trolley has become an essential tool for customer’s shopping in the supermarkets or grocery stores. On the other hand, it is inconvenient and time consuming for customers in a rush to push the trolley and search for the desired products in a supermarket. Therefore, an automatic human tracking shopping trolley with sufficient database indicating the availability of the products. The trolley is equipped with the Kinect sensor to optically track the moving target (human). An LCD display shows the location of the items that they plan to purchase. Therefore, customers can enjoy shopping and they can pay more attention to their children during shopping without the need of pushing the trolleys.

Smart Follower and Direction Specifier using Kinect Sensor

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A Hybrid Power System using Solid oxide Fuel cell, PV arrays, Electrolyzer and Ultra-Capacitor Original Research Article

Pages 65- 70
Suhaila Shahnaz AA, Dona Jose

Abstract

This paper presents an integration and power control of hybrid power system combining a Photo Voltaic arrays ,SOFC Stack, ,an Electrolyzer (ELZ) and an energy storage system in the form of hydrogen tanks and an UC module . The photovoltaic generator is chosen for its positive points including being carbon free and inexhaustible .Solid Oxide Fuel Cell (SOFC) is a promising green power source and offers various benefits such as modularity, high efficiency and cogeneration options. but the demerits such as slow dynamics and gas starvation problems affects the performance of SOFC. Due to which the SOFC fails in providing fast response and also face load following problems. However, an integration of SOFC with complementary device such as an Ultra-capacitor (UC) can solve these problems. A dynamic power flow controller is designed which supervised and managed all the energy sources and power converters to maximize the use of SOFC/ELZ/UC and reduce burden on the grid. According to this strategy PV and SOFC has priority in meeting load demand. The UC is utilized as a complement and/or backup device to cover the slow dynamics of the SOFC during transient, while the ELZ is used as a dump load to generate hydrogen for SOFC during surplus power. The proposed system is synchronized to the grid through power electronic converters to enhance the reliability and continuity of power. The performance of the proposed system is investigated under real-world record of load conditions.

A Hybrid Power System using Solid oxide Fuel cell, PV arrays, Electrolyzer and Ultra-Capacitor

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A seven- Level Inverter with FACTS Capability for Distributed Systems Original Research Article

Pages 71-74
C.Sakthivel,G.Abirami,T.Santhiya

Abstract

In this paper a single phase wind energy inverter with Flexible AC transmission system capability is implemented. The proposed inverter is placed between the wind turbine and the grid, same as a regular WEI, and is able to regulate active and reactive power transferred to the grid. This inverter is equipped with dynamic voltage restorer option in order to control the power factor of the local feeder lines. The goal of this project is to introduce new ways to increase the penetration of renewable energy systems into the distribution systems. This will encourage the utilities and customers to act not only as a consumer, but also as a supplier of energy. Moreover, using the new types of converters with FACTS capabilities will significantly reduce the total cost of the renewable energy applications. In this project, modular multilevel converter is used as the desired topology to meet all the requirements of a single-phase system total harmonic distortion, efficiency, and total cost of the system. The control strategy regulates the active and reactive power using power angle and modulation index, respectively. The function of the inverter is to transfer active power to the grid as well as keeping the PF of the local power lines constant at a target PF regardless of the incoming active power from the wind turbine.

A seven- Level Inverter with FACTS Capability for Distributed Systems

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Control for Grid Connected and Intentional Islanded Operation of Distributed Generation Original Research Article

Pages 75-78
Abdul Salam M , Sethulakshmi S

Abstract

In this paper a single phase wind energy inverter with Flexible AC transmission system capability is implemented. The proposed inverter is placed between the wind turbine and the grid, same as a regular WEI, and is able to regulate active and reactive power transferred to the grid. This inverter is equipped with dynamic voltage restorer option in order to control the power factor of the local feeder lines. The goal of this project is to introduce new ways to increase the penetration of renewable energy systems into the distribution systems. This will encourage the utilities and customers to act not only as a consumer, but also as a supplier of energy. Moreover, using the new types of converters with FACTS capabilities will significantly reduce the total cost of the renewable energy applications. In this project, modular multilevel converter is used as the desired topology to meet all the requirements of a single-phase system total harmonic distortion, efficiency, and total cost of the system. The control strategy regulates the active and reactive power using power angle and modulation index, respectively. The function of the inverter is to transfer active power to the grid as well as keeping the PF of the local power lines constant at a target PF regardless of the incoming active power from the wind turbine.

Control for Grid Connected and Intentional Islanded Operation of Distributed Generation

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Automatic Streetlight Controller for Power Reduction and Fault Detection Original Research Article

Pages 79-82
Ashika.S, Haritha.R, Uma Maheswari

Abstract

Power consumption of street lights plays a major role in electrification. Even though the present street light system works automatically, it has many disadvantages like faults, durability of bulbs, light intensity and glows when not needed. The aim of this project is to overcome the problems of power consumption by introducing the light intensity factor, vehicle and pedestrian movement and fault detection, burning hours calculation. PIC16F887 microcontroller processes the information and GSM technology monitors the status of the street lamp. The three sensors used here are PIR (Passive Infrared) sensor, Light Dependent sensor and Ambient light sensor. The major advantages of the proposed system lie in the simplicity of the circuit, low cost, high reliability and increased safety.

Automatic Streetlight Controller for Power Reduction and Fault Detection

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Dynamic Voltage Control of Dynamic Voltage Restorer for Power Quality Improvement Original Research Article

Pages 83-86
Sakthivel.C, Venkatesan.T, Pradeep.R, Guruprasath.R

Abstract

Power quality is one of the most important issues in present systems. Power quality problems like voltage sag, swell and harmonics are major concern of industrial and commercial electrical consumers this is due to large number of sophisticated electrical and, simple operation and variable switching electronics equipment such as computers, adjustable speed drives, programmable logic controllers and so forth. This equipment often requires high power supplies with high quality. Some devices are sensitive to the load voltage disturbances if these take up to several periods the circuit does not work. Various solutions are presented for this problem. One of the most effective methods is the use of Dynamic Voltage Restorer. The efficiency of the DVR is depends upon the control techniques involved in switching the inverter .In this paper hysteresis voltage control of DVR is used to improve the power quality problems. Hysteresis control has very fast transient response frequency. The performance of the proposed method and achievement of desired compensation are confirmed by the results of the simulation using MATLAB/simulink.

Dynamic Voltage Control of Dynamic Voltage Restorer for Power Quality Improvement

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