Informatics Publishing Limited

B. NavaJeevan Reddy ¹, M. Kalyan Chakravarthi ¹

Affiliations
1 KL University, IN

Abstract

In different applications like Hard Disk Drives (HDD), air compressors BLDC motors needs to operate with high speed for fast data accessing. In this paper a new electronic commutating converter is designed, which gives high voltage to each phase winding of the BLDC motor to increase speed of the motor. By operating the motor in Bipolar starting and Unipolar running to give high torque in the starting time and high speed at the running time. The MatLab based Motor model and inverter model are developed to verify the proposed converter topology. The simulation results have been discussed here.

Keywords

Bipolar Starting and Unipolar Running-mode and Spindle Motor.

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M. Kalyan Chakravarthi ¹, R. Srinivas ²

Affiliations
1 Department of Computer Science, AITAM College of Engineering, JNTUK, IN
2 Dept. of Computer Science, AITAM College of Engineering, JNTUK, IN

Abstract

Currently many websites in the internet are built with the help of XML technology. XML is used to process semi-structured as well as structured data. Also XML was designed to transport and store huge volumes of data. Compatibility between different platforms can be easily achieved with the help of XML. To manage information stored in XML and to extract information in efficient way. Many techniques have been proposed to speed up the performance of XML data. The processing is known as “XML mining”.
In this paper, based on the XML data structure, we are going to analyze the similar kind of patterns and propose the data mining technique about extracting the similar patterns from XML data. In this paper to speed up the performance we are going use FP-growth algorithm for mining similar patterns about the XML data structure. The proposed method using FP-growth algorithm applied to XML query subtrees surpass Apriori algorithm.

Keywords

XML Data, FP-Growth Method, Data Mining.

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Anu Rose Jolly ¹, M. Kalyan Chakravarthi ¹, Naveen Kumar Jindal ², Dinesh Birlasekaran ²

Affiliations
1 School of Electronics Engineering, VIT University, Chennai - 600127, Tamil Nadu, IN
2 VIDEO BU, ION, Nokia India Pvt. Lmtd, Kandanchavadi, Chennai – 600096, Tamil Nadu, IN

Abstract

Objectives: The online traffic surge rates have rapid growth in the recent years. The rate has gone high, making the service providers unable to provide the quality of service they assure. The surging cannot be controlled and the only solution lays on the other side, so the providers are forced to choose another methodology of delivering the service in quality. Methods/ Statistical Analysis: In this paper the process of implementing an alternative is proposed. The work is concentrated on creating a Raspberry Pi to work as a transparent cache server with the smart phones enacting as the client. Findings: The issues of streaming videos are ending up being more critical to customers as they pay for over-the-top substance yet, still experience exceptionally less than impressive streams. To get a quick response and decrease access latency, utilizing a cache memory is prudent. A transparent proxy cache server wipes out numerous disadvantage of ordinary methodology. Transparent proxy cache server can be conveyed in two levels, one at switch level and another at router level. The attention is primarily on http result reserve which stores URLs of Previously accessed query results. These caches might be deployed in various machines, acting about as a proxy cache cluster, or exists together in the same machine. In this proposed framework we introduce a straight forward web store middle server, to upgrade the execution. The only work to be done regarding the promise of content availability is continuous monitoring of the cache. Application/Improvement: The proposed methodology can serve the right speed of content delivery by facilitating access of data from the cache while giving no hint that the data has been retrieved through IP-spoofing of the server which here is a small sized computer the Raspberry Pi.

Keywords

Traffic, Quality of Service, Surge, Raspberry Pi, Latency, Proxy, Cache, IP-Spoofing.

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M. Kalyan Chakravarthi ¹, Nithya Venkatesan ¹

Affiliations
1 School of Electronics Engineering, VIT University, Chennai – 600127, Tamil Nadu, IN

Abstract

Objectives: This study aims at designing an easy and a secured way of remote server based data logging using a data acquisition mechanism and HFS (http File Server) software. Methods/Statistical Analysis: Lab VIEW based remote data monitoring and controlling system is designed so as to view and analyze the fidelity of the data. This mechanism proves to be a secured data logger providing an increased access to the users in the loop, along with time stampings and many other additional features. A real time nonlinear process system was considered as a bench mark system for the purpose of logging the level data of it remotely. The Dual Spherical Tank Liquid Level System (DSTLLS) has been chosen and its continuously varying liquid levels are recorded and monitored remotely over the LAN, using remote Master-Slave architecture and File Transfer Server. Findings: It was found that these methods of the data logging prove to be faster and cheaper when compared to the existing methods. Classical algorithmic approach for the data transfer is being applied to facilitate the data logging process. Application/Improvements: There is scope of performing experiments on the data transfer mechanisms using different algorithms and analyzing their performance and efficiency in data logging process.

Keywords

DPT, HTTP File Server HFS, Lab VIEW, Process control, Remote Control.

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M. Kalyan Chakravarthi ¹, Nithya Venkatesan ¹

Affiliations
1 School of Electronics Engineering, VIT University, Vandalur-Kelambakkam Road, Chennai - 600127, Tamil Nadu, IN

Abstract

Objectives: The process industries have always been in search of innovative ways of data logging mechanisms, for they happen to execute complicated flow mechanisms on a long span of time uninterruptedly. Data loggers in existence have contributed to a greater extent as assisting technology to store and monitor the data and also in rugged measurement environment. This study aims at designing an easy and a secured way of remote server based data logging using a data acquisition mechanism and HFS (http File Server) software. Methods/Statistical Analysis: LabVIEW based remote data monitoring and controlling system is designed so as to view and analyze the fidelity of the data. Findings: This mechanism proves to be a secured data logger providing an increased access to the users in the loop, along with time stampings and many other additional features. A real time nonlinear process system was considered as a bench mark system for the purpose of logging the level data of it remotely. The Two Interacting Spherical Tank Liquid Level System (TISTLLS) has been chosen and its continuously varying liquid levels are recorded and monitored remotely over the LAN, using remote Master-Slave architecture and File Transfer Server. It was found that these methods of the data logging prove to be faster and cheaper when compared to the existing methods. Classical algorithmic approach for the data transfer is being applied to facilitate the data logging process. Application/Improvements: There is scope of performing experiments on the data transfer mechanisms using different algorithms and analyzing their performance and efficiency in data logging process.

Keywords

DPT, HTTP File ServerHFS, LabVIEW, Process Control, Remote Control.

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M. Kalyan Chakravarthi ¹, Pannem K. Vinay ¹, Nithya Venkatesan ²

Affiliations
1 School of Electronics Engineering, VIT University, Chennai–600127, IN
2 School of Electrical Engineering, VIT University, Chennai–600127, IN

Abstract

Background/Objectives: PID controllers are one of the first solutions often considered in the control of process industries. It has always been very difficult to treat the level anomalies n the real time processes. Particularly the non linear systems and processes have been a challenge in relation with their dynamics and flow properties. Methods/Statistical analysis: Dual Spherical Tank Liquid Level System (DSTLLS) has the characteristics of nonlinearity due to the dynamic behaviour and area of cross section of tank. One of the major problems in process industries is to control of liquid level for Second Order System Plus Delay (SOSPD) system because the presence of time delay in the system can lead to destabilization of the system. This simulation aims at portraying the performance of the designed Internal Model Control (IMC) PID Controller. Using the black box modelling technique the SOSPD is mathematically modelled experimentally, assuming the system to be a Single Input Single Output (SISO) model. Findings: The aim of this paper is to design a PID controller using IMC tuning method for a (DSTLLS) whose modelling has been done in real time. This simulation briefly explains about stabilizing problem for SOSPD system using an IMC PID controller. The designed controller performance is analysed in terms of performance indices like Integral Squared Error (ISE) and Integral Absolute Error (IAE) and time domain specifications like Rise time, Settling time and Peak time. Conclusion: The validation of the performance of the designed controller is performed under MATLAB environment. There can different controllers which can be also experimented on the same mathematical model for different configurations of the system, namely MISO and MIMO.

Keywords

Internal Model Control (IMC), MATLAB, Non Linear Systems, SISO, Spherical Tank Systems

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Uday Kiran Ruttala ¹, M. S. Balamurugan ¹, M. Kalyan Chakravarthi ¹

Affiliations
1 School of Electronics Engineering, VIT University, Chennai - 600127, Tamil Nadu, IN

Abstract

Background/Objectives: Near Field Communication (NFC) technology follows traditional Radio Frequency Identification (RFID) standard that enables the communication using radio frequency between the devices that are separated by distance less than 10 cm. Methods/Statistical Analysis: The present work is a secured campus payment system that uses near Field Communication (NFC) technology and RFID integrated campus ID cards to make payments automatically within the organization or campus. The work is developed using an Arduino Microcontroller with PN532 based NFC controller shield and LabView. Findings: The system in implementation provides a convenient facility to act as a smart payment system in place of cash transactions with an added layer of authentication with no extra tags attached to it. Conclusion/ Improvements: The smart campus payment system in implementation can be further enhanced to include the mobile NFC as the payment authentication system with banking features attached to the mobile NFC gateway.

Keywords

Authentication System, NFC, RFID

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