Digital Signal Processing

N. Murali ¹, S. Veerakumar ², A. Nirmal Kumar ², Shriram K. Vasudevan ³

Affiliations
1 Nizwa College of Technology, OM
2 Bannari Amman Institute of Technology, IN
3 Vellore Institute of Technology, Vellore, IN

Abstract

This paper discuss about the new approach of monitoring the electrical parameters for drives through power line carrier communication. Using this technique parameters like speed, voltage, current and power factors are monitored by using exceed power leads as a communication media. The communication media are located in two different places for sending and receiving the data’s which require existing 50 hertz power line. This circuit uses an asynchronous serial communication protocol and frequency shift keying modulation for realizing frequency multiplexing in the power line. These monitoring systems used for an inverter-fed induction machine are constructed using this power line communication link. A prototype model was demonstrated within the limited distance.

Keywords

Frequency Shift Keying, Microcontroller Unit, Pulse Width Modulation, Power Line Carrier Communication.

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Shriram K. Vasudevan ¹, S. Karthick ², R. Sivaraman ³

Affiliations
1 Sense, VIT University, IN
2 VIT University, IN
3 S.S.T, VIT University, IN

Abstract

Embedded Systems are playing a vital role in all the fields. Everything is embedded system in the modern world now a days right from the AC to Pacemaker including so many other applications as well. So we thought of making use of embedded system in the field of Medicine. And most importantly our eyes! We are trying to deploy microcontroller for intraocular pressure monitoring as glaucoma is the origin of blindness, in which the optic nerve is damaged, leading to advance and permanent loss of vision. It is found that raised intraocular pressure is a major risk factor for developing glaucoma (above 22mmHg or 2.9Kpa). In fact 6 million individuals are blind in both eyes from this disease. Often glaucoma has no symptoms, which can suddenly result in vision loss and it requires early detection, regular eye exams and treatment to prevent the eye sight. A number of medications are currently in use to treat glaucoma and we have given the complete set up details and implementation ideas as well along with clear analysis of results for detecting intraocular pressure in the eye in order to prevent glaucoma. Many researches are going out to find the cause for increasing the fluid pressure in the human eye and to improve its diagnosis and treatment.

Keywords

Embedded Systems, Glaucoma, Monitoring, Microcontroller.

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