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1 |
Design of Low Power SRAM Memory Using 9T
SRAM Cell
N.Arumugam, Dr.A.Sivasubramanian
Abstract —High integration density, low power and fast
performance are all critical parameters in designing of memory
blocks. Static Random Access Memories (SRAMs)’s focusing on
optimizing dynamic power concept of virtual source transistors is
used for removing direct connection between VDD and GND. Also
stacking effect can be reduced by switching off the stack
transistors when the memory is ideal and the leakage current
using SVL techniques This paper discusses the evolution of 9t
SRAM circuits in terms of low power consumption, The whole
circuit verification is done on the Tanner tool, Schematic of the
SRAM cell is designed on the S-Edit and net list simulation done
by using T-spice and waveforms are analyzed through the Wedit.
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2 |
Exposure Of Presence of Splicing Under Space-Varient Blurring Conditions
G.Durgaveni
,
J.Monica Esther
Abstract—In this work ,we propose a new methodology to expose the presence of image splicing .Image splicing is a form of tampering in which an original image is altered by copying a portion from a different source.Our proposed work seems to have more imporatnce because of the lot and lot of existing availabilities of sophisticated image editing tools. So many number of methods exist in the present scenario for dealing with this same problem.But all of them are working only in the presence of uniform space invariantblur situations only.In our proposed approach too,we detect image splicing by means of blur as a cue.In contrast to all of the existing methods,we can expose the presence of splicing by evaluating inconsistencies in motion blur even under space_varient blurring situations With the no of few case studies for different scene situations and camera motions,we validate our proposed methodology.
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3 |
Design and implementation of college automation using wireless technology
V.Elamathi, G.gnanavel
Abstract—The aim of this paper is to present the college automation and control system using the embedded controller. The microcontrollers are used as the controlling device which can control the operations of the processing units. In this paper the user can give the information to the students in a remote access method. The controlling of the electrical devices is done automatically by detecting the presence of human in the class room. This is accomplished by using the PIR (Passive Infra-Red) sensor. The PIR sensor can detect the presence of motion in field of operation and can convert the measured movement into the heat energy which in turn converted into the electric current pulse. Next the zigbee protocol is provided for the indoor communication for this purpose the LCD is placed in the class room. Finally the presence of alcohol consumed students within the class room in identified by using the MQ-3 gas sensor. Thus the full college automation is provided and managed by this paper.
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4 |
Monitoring and control System based on Airport
Boarding Bridge using ZigBee Wireless Network
A.Elumalai, Ezhilarasan, D.Murugavel
Abstract— In order to overcome the disadvantages of
boarding bridge collapsing and scraping the plane without
early warning, a design of wireless fault early warning and
monitoring system combining ZigBee wireless communication
technology and variable sensors which are used to detect
vibration, position, and faults, was proposed. The structure of
network, the design of hardware and the software modules of
the monitoring system are discussed in detail. Experiments
show that the application of wireless ZigBee technique with
low cost and low-power dissipation makes the monitoring
system of airport boarding bridge more flexible and shortens
the troubleshooting time. Besides, it could eliminate the
cumbersome problem of overall fault diagnosis on site.
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5 |
Intelligent ARM Based Children Tracking System
Geetha M, Arunkumar B
Abstract-Recently, all over the world, the number of crime
over children is increasing day by day. This paper presents ARM
Based Children Tracking System Using Mobile Ad hoc network
(MANET) to avoid crime, health monitoring of students and
reduce worries among parents. However the existing system are
not powerful enough to give information about the children
accidents such as unintentional injuries at school environment
and also does not provide concentration on sensing the body
temperature of the child and intimating the same to its parents
and school control room. The information about student such as
in time and out time from Bus and campus, body temperature
will be recorded, and the GPS/GSM system automatically sends
information (SMS / Phone Call) to their parents.
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6 |
Automatic speech recognition and interpret for autism using augmentative and alternative communication
S.Jasmine Vanitha, G.Gnanavel
Abstract -This paper provides an innovative form of ―Automatic speech recognition and interpret for autism using augmentative and alternative communication (AAC) device‖. This AAC is intended to recognize an utterance of the user and also to understand the speech of a person, who has a great difficulty to communicate and finally converting it into a synthetic speech. The development of this system is carried out by building small vocabulary from both the utterance and from the inaudible speech of the autism people. Experiments showed that this method is successful in generating good recognition and translation performance on highly unintelligible speech, even when recognition perplexity is increased.
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7 |
Multiple renewable generators
Coordination in a microgrid
Jayalakshmi M
Abstract-High renewable energy utilization in a micro grid to work autonomously, it has to maintain the supply-demand balance of active power of the entire micro grid. The Maximum peak power tracking operation, which is insisted for high renewable energy utilization, may cause a imbalance in the supply-demand of the micro grid. This will occur whenever the available renewable generation is more than demanded, especially in the case of autonomous operation of micro grids. Currently, droop control is one of the most popular decentralized methods which is for sharing active and reactive loads among the distributed generators. However, this conventional droop control methods suffer from slow and oscillating dynamic response and steady state deviations. In order to overcome these problems, this paper proposes a coordination of multiple renewable generators in a micro grid in which the supply-demand balance can be well maintained and the system dynamic performance can be significantly improved. Simulation results here demonstrate the proposed control solution and their effectiveness.
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8 |
Improving the efficiency of base station using Planar magnetic material and AMO architecture
Kallapiran.K.P
Abstract-Using energy generated with fossil fuel causes global warming due to the greenhouse effect, which threatens our environment. One of the challenges for New Generation Net- works (NGN) is then the reduction of energy consumption, in particular at the BSs (Base Stations) which use about 85% of the total network energy. This paper contributes to the research with a mathematical model that calculates the total power consumption of a BS and enlightens the way to minimize it. First, we analyze the power consumed at every different component of the BS. Then this paper describes new out phasing transmitter architecture in which the supply voltage for each Pa can switch among multiple levels. It is based on a new asymmetric multilevel out phasing (AMO) modulation technique which increases overall efficiency over a much wider output power range than the standard LINC system while maintaining high linearity.
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9 |
An improved energy stored q-ZSI connected with a Constant DC Link peak voltage Photovoltaic power system
B. Kavya Santhoshi, Dr. M. Sasi Kumar
Abstract-Power generation using Photovoltaic cells is a promising form of sustainable energy. A quasi-Z source inverter (qZSI) can minimize the fluctuations from the power generated by a PV panel. In the existing system, during the discharge of battery, discontinuous mode of conduction has a wider range of operation. Hence there is a limitation on power. Constant DC-link peak voltage is achieved thereby improving the power and reducing the distortion in load. The new topology enables an improved ability to compensate power while maintaining a constant dc-link peak voltage with minimum harmonics. Thus the proposed system provides an efficient means of PV power generation.
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10 |
Battery synchronous techniques to increase the amount of energy generated by solar panels using SHM
Manimozhi.K, Ananthi.B
Abstract─This paper is about a robotic vehicle aims on the design of efficient charging system of batteries by means of tracked solar panels. The main attraction of this paper is the design concept of the charging and discharging cycles of the batteries based on the PIC microcontroller. On this basis, our proposal makes a twofold significant contribution. On the one hand, it presents the construction of a solar tracking mechanism aimed at increasing the rover’s power regardless of its mobility. On the other hand, it proposes an alternative design of power system performance based on a pack of two batteries. The aim is completing the process of charging a battery independently while the other battery provides all the energy consumed by the robotic vehicle.
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11 |
An Innovative Control Method of Solar Grid-connected
Inverter with Effective Utilization of DC Power Source
M.Manonmani, M.Azhagurani, B.Mahesh
Abstract -The main disadvantages of current cascade multilevel
inverter, it requires a lot of independent DC source, but a new
type of cascade multilevel inverter, which decreases the
number of DC sources by increasing the usage of DC sources.
The new type of inverter is not only simple in structure, but
also simple and effective in control algorithm that the
simulation results certify that this new type of cascade
inverter is feasible.
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12 |
Design and implementation of RFID based e-shopping system
Premila M ,Gnanavel G
Abstract-The emergence of new wireless
technologies opened new opportunities to develop
more efficient information systems. RFID is
among those technologies, which extended the
potential of wireless identification, and represent a
potential replacement to old-fashioned
identification systems such as the barcode system
in retail sales. This paper presents a new RFIDbased
cost efficient approach for pervasive retail
sales. The suggested new system architecture is
based on aisle-level scanning and new event
management procedures at the level of RFID
middle ware. It also discusses the impact of
deploying such systems in retail stores, and more
specifically supermarkets, on the supply chain.
The motivation behind such approach is not only
reducing the number of RFID readers compared
to existing RFID based systems, but providing
customers with an interactive shopping experience
and fast checkout and bill payment, making this
approach transparent, efficient and cost effective.
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13 |
Diagnosis of retinal images using the Support
Vector Machine(SVM)
Ramrathanam, Dhivya
Abstract— Diabetic retinopathy (DR) is a condition where the
retina is damaged due to fluid leaking from the blood vessels into
the retina. In extreme cases, the patient will become blind.
Therefore, early detection of diabetic retinopathy is crucial to
prevent blindness. The main stages of diabetic retinopathy are
non-proliferate diabetes retinopathy(NPDR) and proliferate
diabetes retinopathy (PDR).In this work, we have proposed a
computer based approach for the detection of diabetic
retinopathy stage using color fundus images .The features are
extracted from the raw images using the image processing
techniques and fed to the support vector machine (SVM). We
demonstrate a sensitivity of 97.5% for the classifier with the
specificity of 100%.
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14 |
FPGA Implementation OF 3/6
SRFFT Algorithm for Length
6*m DFTs
M. Sathya, M.B.Annadurai
Abstract— The Fast Fourier Transform (FFT)
requires high Computational power, ability to
choose the algorithm and architecture to
implement it. This project explains the realization
of a 3/6 FFT processor based on a pipeline
architecture. The implementation has been made
on a Field Programmable Gate Array (FPGA) as
a way of obtaining high performance at
economical price and a short time of realization.
FPGA can be used with segmented arithmetic of
any level of pipeline in order to speed up the
operating frequency. The processor has been
simulated up to 200 MHz, with an Xilinx Spartan
3E as a target device, for a transform length of 6
complex points. To combine the higher parallelism
of the 6-FFTs and the possibility of processing
sequences having length of any power of 6.The
simultaneous operation of multipliers and addersubtracters
implicit in the 3/6 FFT, leads to faster
operation at the same degree of pipeline. The 3/6
FFT algorithm is implemented in Xilinx FPGA
Spartan 3E (XC3S100E-VQG100C).
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15 |
PHOTOPLETHYSMOGRAPHY
s.sindhu, Dr. Sivanthi Aditanar
Abstract— This paper is about a simple heart rate monitor using 8051 microcontroller. The
microcontroller used here is AT89S51.Thedevice senses the heart rate from the fingertip using
IR reflection method and displays it on a three digit seven segment display in beats per minute.
The circuit has an accuracy of 4 beats per minute and it is very easy to use. In medical terms,
the technique used here for sensing heart rate is called Photoplethysmography.
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16 |
Enhancement Of Voltage Stability In 62-Bus System Using Facts Device
Sindhuja S,A
Abstract—Recent years, power systems undergo many problem among which voltage instability and voltage collapse are considered to be the major one. The main cause for these issues is the reactive power demand. The remedy for prevention and improvement of system voltage stability is provided by the implementation of FACTS device. In this paper, the voltage stability of Indian practical 62-bus utility system is analyzed using static methods of voltage stability analysis. The voltage bus ranking is made based on the participation factor of each bus and weak bus of the system is identified using MATLAB (PSAT).The weakest bus of the system is considered as the effective place for the location of FACTS device.
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17 |
Design and Implementation of ARM Based
Vehicle Automation for Legal Safety
K. Shobana , A.Priyadarshini
Abstract- Automation will reduce the congestion on
highways. Recently most development in automation for
safe driving on vehicles. The proposed system developed
based on traffic rules. It will make vehicle as fully
automated driving with environmental aspects. The safety
is provided by distance measuring from obstacle, obstacle
avoidance by path changing. The use of RF module would
be significantly increased if the vehicle speed could
automatically adapt to traffic flow. The system predicts the
obstacle and measuring distance of the obstacle, which is
predict road signs to control the speed of vehicle. The
collision avoidance system predicts accurately the
likelihood of an imminent collision. If a collision is likely to
occur, then the system responds in such a way as to reduce
the threat and the response may involve the automatic
control of the vehicle or simply an appropriate warning to
the driver.
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18 |
Analysis of Impedance fed Induction motor drive
M.Thangamarimuthu, S.Govindaraj
Abstract— This paper presents an impedance source (or
impedance-fed) power converter (abbreviated as Z-source
converter) and its control method for implementing both
combination of current and voltage source inverter power
conversion. It is having both buck and boost capabilities of
output voltage, as they allow inverters to be operated in shoot
through the state. The Z-source converter employs a unique
impedance network (or circuit) to couple the converter main
circuit to the power source The Simple Boost control with
independence relation between modulation index and shootthrough
duty ratio is to be minimized, in order to reduce the line
harmonics, to improve the power factor, by increased reliability
and extended output voltage range. Simulations were carried out
in MATLAB/Simulink for VSI (Voltage Source Inverter) and
CSI (Current Source Inverter) fed Induction motors and it is
being compared with the Z-Source Inverter fed Induction motor
drive and also their performances were compared.
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19 |
Design of Multi Output DC-DC Boost Coverters
A.Thiyagarajan, M. Gokila
Abstract-DC-DC converters are used as power electronic interfaces for renewable energy sources such as photovoltaic power system, fuel cells. To construct an efficient renewable energy system, they need to have the suitable converter. In this paper, we proposed triple output boost DC-DC converters which are used in such system to improve efficiency, performance and also to reduce cost and component count. Double outputs boost DC-DC converters is an existing converter. Double output boost dc-dc converter and Triple output boost dc-dc converter were designed through derivation by using Single pole Triple Throw (SPTT) switch and Single Pole Four Throw (SPFT) Switch as building block. Switch realization and operating characteristics of the existing and proposed converters were obtained with their voltage transfer ratios. The performances of the existing double output dc-dc boost converter and Triple output dc-dc boost converters were simulated with equal duty ratio for each switches using MATLAB/Simulink.
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20 |
Wind and Solar Energy Conversion Using Power Electronics System
Venkatesan.P, Dr.S.Senthilkumar
Abstract- A multilevel dc–dc power conversion system with multiple PV array based dc sources and A multilevel cascaded voltage source converter is developed to synthesize a high sinusoidal output voltage is proposed in this Research. To reduce switching frequency deviation of DC-DC converter is in the events of line and load variations, an adaptive feed forward control scheme that varies the hysteresis band according to the change of line input voltage and an adaptive feedback control scheme that varies the control parameter (i.e., sliding coefficient) according to the change of the output load are proposed. The multilevel dc–dc power conversion system of solar power generation is combined with the Multilevel cascaded voltage source inverter (11-level) configuration of wind power generation to get the high efficient operation is proposed.
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