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    Volume-4 Issue-6

    Title: Design of Low Power Explicit Pulse Triggered Flip Flop

    Authors: M.Sangeetha, R.Baskar and M.Balaji

    Abstract: D flip flop is one of the fundamental building blocks in most digital designs. Many high speed digital circuits such as memory require high speed and low power consumption. In existing method, the charge keeper is used to provide strong 0 and strong 1 since it uses pass transistor for signal feed through technique. A new D Flip Flop is proposed with signal feed through technique using transmission gate, where the circuit of the existing method is modified for low power dissipation and to reduce the number of transistor count. The proposed method is implemented using Mentor Graphics 11.6 at 130nm Technology.

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    Title: Tollgate Automation System using RFID

    Authors: M. Navaneetha Krishnan and R. Sriranjini

    Abstract: In toll collection system the RFID technology is main concern. The RFID reader placed in a toll booth counter and RFID tag is placed in a each vehicle. When the signal comes from the RFID tag is received by the RFID reader. The RFID reader collects the data base from micro controller system. The RFID reader sends the signal to LCD display and personal computer. When the amount is not transfer from the vehicle owners? account to toll collection, immediately the toll person sends message to GSM system the vehicle is stopped. After the manual payment the vehicle is started

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    Title: Design and Implementation of Wireless Sensor Network for Laboratory Monitoring System

    Authors: S. Ramalingam

    Abstract: The physical parameters such as temperature, humidity, moisture, pressure etc., can be monitored by spatially distributing the sensors and to transfer the collected data through the network is termed as Wireless Sensor Networks. In case of laboratories, due to variations in the physical parameters accidents may occur. Hence to avoid these accidents this system is proposed. This system provides measurement of physical parameters regularly and the data are collected from various sensor nodes and the collected data were transferred through the network. This transferred data is viewed in Android mobile application which facilitates laboratory monitoring without direct human intervention.

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    Title: Self-Learning Based Image Denoising and Rain Streaks Removal

    Authors: B. Saranraj

    Abstract: Image enhancement and an image denoising is the important task of an image processing applications. Decomposition of an image into multiple semantic components is used for done this task. In this paper we proposed to Self learning based image decomposition framework. In this framework first we separate the high frequency part from the input noisy image by using bilateral filter. Then learns the dictionary from the high frequency part of an image. To identify the image-dependent component with similar context information we perform unsupervised clustering on the observed dictionary atoms using Affinity propagation. Applying our proposed method we are able to automatically determine the ?Gaussian noise or rain streaks? from the input image. Differ from the prior methods our proposed method does not need collection of training image data in advance. We conduct the experiments on Single-image denoising with Gaussian noise and rain streaks removal. As a result, the rain component and Gaussian noise can be removed from the image and preserving most original image details.

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    Title: DSP-Based SVPWM Signal Generation Algorithm for Three Phase Inverter

    Authors: Kartar Singh, Shimi S.L and Gopal Lal Jat

    Abstract: This paper deals with real time implementation of DSP based SVPWM control algorithm for 3 stage 3-leg IGBT voltage source inverter. This strategy is helpful to control the speed of VSI fed 3 phase induction motor. The pulses are generated using DSP controller Texas instrument TMS320F28335. The algorithm is designed using MATLAB and converted into C language using code composer studio (CCS) environment so that it can be reused easily to provide flexibility in terms of changing the PWM switching frequency and VSI frequency to trigger the inverter. Result of input and output are captured using Digital signal oscilloscope (DSO). This work is a piece of research work that intends to build up a sensorless vector control of 3 phase induction motor.

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    Title: Real Time Implementation of Hybrid Maximum Power Point Tracking (MPPT) for Solar PV System

    Authors: Ashish Thakur, Shimi S.L. and Ashutosh Dixit

    Abstract: Solar radiation from the sun is the richest source of renewable energy in nature, MPPT is a major concern in PV power system. The most common methods considered are the Perturb and Observe (P&O), Hill Climbing and Incremental Conductance (INC). The scope of these techniques also encloses their disparities and characterized by their forms. This work deals with real time implementation of hybrid MPPT under partial shading condition. MATLABTM/DspaceTM platform have been utilized for real time simulation of buck converter controlled PV system. . The performance of these MPPT methods has undergone a process of different comparisons. These investigational results of different MPPT methods for tracking the MPP under quickly changing solar irradiation have been presented

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    Title: Elimination of Harmonics using Modified Space Vector Pulse Width Modulation Algorithm in an Eleven-level Cascaded H-bridge Inverter

    Authors: Jhalak Gupta , Vimal Kumar Verma and Shimi S. L.

    Abstract: This paper presented a modified space vector pulse-width modulation algorithm (MSVPWM) for an eleven-level cascaded h-bridge (CHB) inverter. Space vector diagram (SVD) of an eleven-level CHB is reduced into several number of two-level space vector hexagon diagrams. In comparison with the general two-level space vector method, the proposed method decreases the total calculation time, labyrinthine and efforts involved in simplifying the SVD of an eleven-level inverter; without affecting the performance of inverter or loss in the inverter output voltage. Simulation results by using the proposed MSVPWM algorithm is presented. The results are compared with the newton-raphson based selective harmonic elimination (NRSHE) technique to validate the proposed algorithm. This method is completely general and can be applied to any type of n-level inverter.

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    Title: Transfer of Digital Image by Using Divers Image Media for Security Purpose

    Authors: Mangla s dantulwar and Puja.gawande

    Abstract: Transfer of digital image throught computer aided environment is a big problem today. visual secret sharing (VSS) schemes is used to hide secret images in shares transparencies or printed form are encoded and stored in a digital form.The drawback of VSS schemes suffers from a transmission risk problem while sharing shares contains in Secret Images. To avoid this problem, we proposed a natural-image-based VSS scheme (NVSS scheme) that shares secret images through various media to protect the secret and the participants during the transmission. The proposed (n, n)- NVSS scheme it has used to share one digital secret image over n-1 arbitrary selected natural images (called natural shares) and one noise-like share. The natural shares can be photos or painted pictures in digital form or in printed form. The noise-like share is developed based on these natural shares and the secret image. We also introduced possible ways to hide the noise like share to reduce the transmission risk problem for the share.

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    Title: A Gabor filter approach of Fingerprint Recognition with Multiple Orientations

    Authors: D.N.V.Ashok and Mrs.Y.Sukanya

    Abstract: Fingerprint recognition has been one of the finest strategies for the bio metric identification, because of its high degree of exactness. Also getting a decent finger impression is a tedious job. Consequently a finger print image must experience a portion of improvement methods. The principle target of this work is to enhance the finger print image by utilizing FFT and Gabor filter. In frequency domain filtering, the finger print image is divided into 16*16 small frames and the Gabor filter with 16 different orientations were considered and outputs from these two channels are combined to form a final enhanced image. The enhanced image finally obtained is subjected to binarization and thinning techniques, here it converts the entire image into white (1?s) and dark (0?s) pixels and the ridges are minimized to pixel width of unity. The minutiae parts which were acquired by this procedure are compared with different images in the database and the matching process takes place. The proposed method has more than 96% of the recognition rate which is better than histogram method. Matlab is the major tool for the implementation of the project.

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    Title: Jamming avoiding communication using MIMI-OFDM based defense mechanism

    Authors: G. Karthiga and M. Julie Therese

    Abstract: Wireless sensor networks utilize open transmission media they are prone to radio jamming attacks. Jamming attack as the attack efficiency is maximized while the risk of being detected is minimized. Currently, there are no effective anti-jamming solutions to secure OFDM wireless communications under reactive jamming attack. On the other hand, MIMO has emerged as a technology of great research interest in recent years. These attacks are easy to launch but difficult to defend. These attacks may lead to low network throughput because of jamming signals. Failure of data transmission in sensor networks is due to corruption of packets by reactive jammers. A number of defense techniques have been proposed in recent years to deal with these jammer attacks. However, each defense technique is suitable for only a limited network range and specific jamming conditions. This paper proposes a novel based defense mechanism approach to detect and isolate the reactive jammers by using status interactive channel tracking and sender signal enhancement service to avoid all the problems.

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    Title: Using DVFS Power Aware Simulation for Virtual Machine allocation in Cloud Computing Datacenters

    Authors: Ahmad Ali and Riaz Ali

    Abstract: By increasing utility of cloud infrastructure as a result to increase the power consumption among datacentres still a critical research problem. Some approaches are used to solve this problem but still those approaches are not comfortable for parallel systems. To overcome this problem, this paper will present the bookworms of inside current datacentre what is available already and still what is required for energy optimization. We studied several algorithms like Lago Allocator, Best Resource Selection (BRS), Round Robin (RR), Energy Efficient (EE) by using Power-Aware, Non-Power-Aware and DVFS enabled Simulation techniques. Simulation results demonstrate that more power save in DVFS enabled simulation.

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    Title: FPGA based Efficient Digital Signal generator

    Authors: Mrs. K Lakshmi, Dr. A Naga Jyothi and Mrs. S. Pushpalatha

    Abstract: This paper describes a technique that utilizes the memory very efficiently for the successful generation of periodic waveforms in their digital format and illustrates its implementation in Field Programmable Gate Array (FPGA) technology. Digital waveforms such as sinusoidal, trapezoidal, square wave, triangular wave and addition of two waveforms are generated using efficient look up table method to reduce the hardware implementation using Very High Speed Integrated Circuit hardware Description Language (VHDL) and FPGA. The proposed design has been simulated and validated using ModelSim software and implemented using Xilinx Vitex-6 FPGA and verified using Xilinx On-Chip Debugging tool Chipscope-pro software. The implemented results shows that any periodic function can be realized directly in digital form without need of analog to Analogto Digital Converter using FPGA

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    Title: Automatic Speed Control of Vehicles Using RFID

    Authors: R. Sriranjini, Mrs. M.Madhumalini, and P.Viji

    Abstract: Road traffic crashes are one of the world?s largest problems. Poor road infrastructures, failure to comply with speed limits, growing drinking and driving habits are the main factors contributing to deaths. According to the World Health Organization (WHO), more than million people are killed in road accidents, each year all over the world. According to the statistics of accidents in India, the National Crime Records Bureau reveals that every hour at least 13 people die in road accidents. In 2015, 1.25 million people in India lost their lives in road mishaps.

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