ISSN-23192100
  Asian Journal of Engineering  Research
                                                            -An Open Access Peer Reviewed e-Journal

 
 

A COMPARATIVE ANALYSIS BETWEEN FUZZY CONTROLLER AND PID CONTROLLER FOR A UNIVERSAL MOTOR

Asian J Eng Res/Vol. I/Issue IV/July-Sept..2013/01-04

Authors: Pankaj Sahu*A.K. Pandey

ABSTRACT
The aim of the paper is to improve the dynamic response of a universal motor and to give a better response of external load disturbance by using PID and Fuzzy Logic Principles. The stability analysis of universal motor using PID and Fuzzy controller has been derived. The speed Vs input voltage characteristics have been analyzed based on linier model. The Open loop and Closed loop response of the system has been studied by simulation using MATLAB SIMULINK. The Proportional Integral Derivative (PID) controller and Fuzzy logic Controller (FLC) has been designed to check the stability of industrial Universal Motor control based on linear model.

DEVELOPMENT OF EMPIRICAL FORMULAS FOR LPG CYLINDER HYDRO TEST PARAMETERS

Asian J Eng Res/Vol. I/Issue IV/July-Sept..2013/05-07

Authors: Akula Ramakrishna,* Nihal A Siddiqui, P Sojan Lal

ABSTRACT
Hydro-tests are critical mandatory tests to be conducted on Liquefied Petroleum Gas Cylinders to ensuring its design and statutory compliance. Volumetric expansion, burst pressure and nominal hoop stresses are measured from hydro-tests. Indian standard IS3196 provides general guidelines to conduct these tests and also provides the compliance requirement as per statutory authorities. These tests are destructive in nature and hence this test is conducted on random sample cylinders in a manufacturing location while manufacturing new cylinders. There is no method to judge or estimate these critical parameters, once the cylinders are released to market for usage. An attempt has been made in this paper to develop empirical formulas for estimating these hydro-test parameters. 40 domestic LPG Cylinders hydro-test data was collected analysed and developed empirical relations among these critical variables. Estimated values of these critical parameters from empirical formulas are analysed with appropriate reasoning and these formulas can be used for indicative estimates.

Asian J Eng Res/Vol. I/Issue IV/July-Sept..2013/08-17

Authors: A. Menon*, R. Sinha, D. Ediga, Prof. Subba Iyer

ABSTRACT
Internet of Things (IoT) refers to uniquely identifiable objects and their representation in an Internet-like structure. The term, IoT although coined way back in 1999, became popular after the onset of RFIDs. There are estimates of more than 30 billion devices being wirelessly connected to the Internet of Things by 2020. The existing research work on IoT has been immense and has been carried out in various fields like smart home systems, retail/supply chain management, insurance and healthcare. Also the field of IoT has its own challenges and drawbacks which need to be overcome to realize its full potential.
The purpose of our research is to understand the feasibility of implementing Internet of Things in bus transportation system in Singapore. Singapore, which is renowned for its technology advancements, still has scope for improvement in terms of technology being used for transportation purposes. There is a dire need for the consumer to understand and evaluate different bus options in an efficient manner and this is where Internet of Things infrastructure can help.
Our secondary research has helped us structure a technical architecture in place for an app where Internet of Things can be used to predict arrival timings of buses as well as the crowd inside each bus. Also, the primary research helped us gain immense knowledge in the field of IoT and helped us with the protocols for communication between the devices in our architecture which is the part where most IoT deployments tend to fail. Finally, we could conclude that such an implementation is possible and also there is a lot of future scope for it to be built upon when the world realizes how to overcome the current limitations of IoT.