OBJECTIVE

Main objectives for this project are:

• Upgrading the Monitoring System for existing method (analogue type) to modern method (digital approach)
• Enhance the Medical Equipment to reduce Human user and noise surrounding
• To provide the opportunity for student to apply and integrate the knowledge
• The philosophy for this project is to Study of Medical Electronic Device Industry and how does it function and detect the signal.

    

These objectives are achieved and the application is working with the desired output.

PROBLEM STATEMENT

         The sound of environment surrounding is the main problem for conventional stethoscope to produce the result. The doctor could not hear the sound of heart beat if it in the noising area because the interruption will make the counting of heart beats become error or wrong. By changing the result into the digital output signal it will give more accurate counting for the heart beat per minute by the sound of heart on it. 

       The analogue voltage needs to be conditioned and then converted into a digital by using an audio analogue-to-digital converter (ADC) or audio code. For these reasons, it is important to develop methods to estimate the reliability of such program, to ensure it will perform satisfactorily when needed the in the specific way. The circuit for this project uses op-amps to greatly amplify a standard sound of heartbeat, and also includes a low pass filter with voltage comparator to remove the background noise from surrounding areas.