18-02-2011, 12:41 PM
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ECG/EMG/EVOKE POTENTIAL ANALYSER USING EMBEDDED CONTROLLER
Human body is a complex engineering marvel, which contains various types of systems such as electrical, mechanical, hydraulic, pneumatic, chemical and thermal etc. These systems communicate internally with each other and also with an external environment. By means of a multi-level control system and communication network, the individual systems enable the human body to perform useful tasks, sustain life and reproduce itself. The cardio vascular system is a complex closed hydraulic system, which performs the essential service of transportation of Oxygen, Carbon-dioxide, numerous chemical components and the blood cells. The condition of the cardio vascular system is examined by recording the electrical activity of the heart muscle
The electrocardiograph (ECG) is an instrument, which records the electrical activity of the heart. Electrical signal from the heart characteristically precede the normal mechanical function and monitoring of these signals has great clinical significance. ECG provides valuable information about a wide range of cardiac disorders such as the presence of an inactive part (or) an enlargement of the heart muscle.
Although the electric field generated by the heart can be best characterized by vector quantities, it is generally convenient to directly measure only scalar quantities (i.e.) a voltage difference of mV order between the given points of the body
ELECTROMYOGRAPH (EMG)
Electromyography is an instrument used for recording the electrical activity of the muscles to determine whether the muscle is controlling (or) not. The instrument is useful for making a study of several aspects of neuromuscular function, neuromuscular condition, reflect responses etc.
EMG measurements are also important for the myoelectric control of prosthetic devices. EMG is usually recorded by using surface electrodes (or) more often by using needle electrodes, which are inserted directly into the muscle. These electrodes pick up the potential produced by the contacting muscle libers.
This signal can then be amplified and displayed on the
PC. The amplitude on the EMG signals depends upon various factors, e.g.. The type and placements of electrodes used and the degree of muscles exertions. The typical EMG signal ranges from 0.1 to 0.5 mV. They may contain frequency components extending up to 10 KHz.
Fire Fighting Robot using embedded controllers.
Robotics plays vital role in industrial automation, automobile, communication, weather fore costing and much more areas.
Robots are man made machine to do continuous operation with out rest. Old generation robots are programmed for single continuous work. New generation robots are very intelligent, which can perform various works simultaneously.
We would like to develop a real working model robot to handle various functions which are essential nowadays world.
We would like to develop the robot using state of art embedded technology to reduce the complexity in design and to machine maximized output with minimized input.
We would like to use PIC16F877A latest microchip embedded controller because of its unique built in feature
PIC16F877A Embedded micro controller has lot of built in features like, Built in 8 channel 10 bit ADC - Analog interface
Built in PWM module - electrical interface
Ports - digital interface
RAM & EPRAM - memory interface
USART - PC interface
High Speed - 9600/19200 baud rate
Only 35 single word instructions to learn PIC16F877A controllers is a powerful tool for automation and the chip is most compatible for our project.
16F877A will be coupled to the computer using proper interpreter protocols. The chip is available in normal 40 PIN DIP package. A real movable mechanical model also will be developed to ensure our reality demonstration. Mechanical model will not like a toy, expected to look like real moving and industrial model.
Features of our Project - proposed
Real movable industry model mechanical work.
State of art embedded micro controller PIC16F877A
Built in artificial intelligence.
Obstacle Detection
Fire Detection & Extinguishing
Optical isolated for electronics safety
Stepper motor for accurate positioning.
Simple PC interface.
Low weight high stability fabric hylam sheets will be used for model fabrication.
Opportunity to learn many engineering in one project.