HIGHLY SENSITIVE BIOMEDICAL DIGITAL HEART BEAT MONITORNG SYSTEM (Electronics project)

HIGHLY SENSITIVE BIOMEDICAL DIGITAL HEART BEAT MONITORNG SYSTEM

Technical Specifications:

Title of the project                  :            Highly sensitive biomedical digital heart beat     Monitoring system

Domain                                   :           Sensor base

Software                                 :           Embedded C, Keil, Proload

Microcontroller                       :           AT89S52

Power Supply                          :           5V, 500mA Regulated Power Supply

Crystal                                     :           11.0592MHz

Communication Device          :           IR LED

Applications                            :           operation theatres, I.C.units, biomedical/human        . 

ABSTRACT:

                    This project describes the design of a simple, low-cost microcontroller based heart rate with LCD output. Heart rate of the subject is measured from the thumb finger using IRD (Infra Red Device sensors and the rate is then averaged and displayed on a text based LCD.).. The device LCD displaying the heart beat rat and counting values through sending pulses from the sensor

            This instrument employs a simple Opto electronic sensor, conveniently strapped on the finger, to give continuous indication of the pulse digits . The Pulse monitor works both on battery or mains supply. It is ideal for continuous monitoring in operation theatres, I.C.units, biomedical/human engineering studies and sports medicine. 

           

This project uses regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.

Block Diagram: