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Sujitha, M.
- Dual Tone Multiple Frequency (DTMF) Mobile Control Robot
Authors
1 Dept. EEE, Dr. MGR Educational and Research Institute, IN
2 Dept. EEE, Dr. MGR Educational and Research Institute, Chennai-95, Tamilnadu, IN
3 Department of EEE, Dr. MGR Educational and Research Institute, Chennai-95, Tamilnadu, IN
Source
Automation and Autonomous Systems, Vol 7, No 4 (2015), Pagination: 106-110Abstract
In the age of existing systems it is important to be able to control robots everywhere. Although many methods to remotely control robots have been devised, the methods have the problems such as the need for special devices or software to control the robots. This paper suggests a method for robotic control using the DTMF tone generated when the user pushes mobile phone keypad buttons o when connected with a remote mobile robot. This paper summarizes a the feasibility of implementing Dual-Tone, Multi-Frequency (DTMF) as an alternative mean of robotic communication to Radio Frequency (RF). Our robot is controlled by a cell phone, through this we can make our robot communicate on a large scale over a large distance even from different cities. This robot can also be used to reach the places where humans cannot reach such as small tunnels, etc.Keywords
Atmega 8 Microcontroller, DTMF Mobile.- Design and Implementation of Single Phase Stand-Alone Wind Turbine
Authors
1 Department of Electrical and Electronics Engineering, Dr. M.G.R. Educational and Research Institute, University, IN
Source
Automation and Autonomous Systems, Vol 7, No 6 (2015), Pagination: 168-172Abstract
This paper, prepared by a special task For 100 years, there has been no change in the basic structure of the electrical power grid the hierarchical, centrally controlled grid of the 20th Century is ill-suited to the needs of the 21st Century. To address the Challenge of the existing power grid. This project is analyzing the operation of a stand-alone wind turbine system with variable-speed permanent magnet synchronous generator (PMSG) and a system for storing energy during wind speed and load variations. Energy storage devices are required for power balance and power quality in stand-alone wind energy systems. Initially, the holistic model of the entire system is achieved, including the PMSG, the boost converter, and the storage system.Keywords
Renewable Energy Source, Pollution Free, More Efficiently.- Allocation of Dynamic Resources for Cloud Computing Environment using Virtual Machines
Authors
Source
International Journal of Innovative Research and Development, Vol 3, No 6 (2014), Pagination:Abstract
Cloud computing enables business customers to scale up and down their resource usage based on needs. Many of the touted gains in the cloud model come from resource multiplexing through virtualization technology. In this paper, we present a system that uses virtualization technology to allocate data center resources dynamically based on application demands and support green computing by optimizing the number of servers in use. We introduce the concept of “skewness” to measure the unevenness in the multi-dimensional resource utilization of a server. By minimizing skewness, we can combine different types of workloads nicely and improve the overall utilization of server resources. We develop a set of heuristics that prevent overload in the system effectively while saving energy used. Trace driven simulation and experiment results demonstrate that our algorithm achieves good performance.