In this week, my task is to at least making a draft of proposal report draft, what I have done on progress is about the abstract and introduction. For the problem statement, I have to do some more research on the blood pressure facts and statistics.Below is the report draft I have achieved to make:-
Abstract
Blood pressure,
sometimes referred to as arterial blood
pressure, is the pressure exerted by circulating blood upon the walls of
blood vessels, and is one of the principal vital signs. During each heartbeat, blood
pressure varies between a maximum (systolic) and a minimum (diastolic)
pressure. The blood pressure in the circulation is principally due to the
pumping action of the heart. The
measurement started at systemic arterial pressure measured at person’s upper
arm and is a measure of the pressure in the brachial artery, major artery in
the upper arm. To perform a
measurement, a method called oscillometric is used. The air will be pumped into
the cuff to be around 20 mmHg above average systolic pressure (about 120 mmHg
for an average). After that the air will be slowly released from the cuff
causing the pressure in the cuff to decrease. As the cuff is slowly deflated, the tiny oscillation in the air pressure of the arm cuff will be measured.
The systolic pressure will be the pressure at which the pulsation starts to
occur. The microcontroller is used to detect the point at which this oscillation
happens and then record the pressure in the cuff. Then the pressure in the cuff
will decrease further. The diastolic pressure will be taken at the point in
which the oscillation starts to disappear.
Introduction
My final year project is to design and build a
portable blood pressure monitor device that can measure a user's blood
pressures and heart rate through an inflatable hand cuff. The device is consisted
of three main parts: external hardwares (such as cuff, motor, valve, and LCD),
analog circuit, and microcontroller. The analog circuit converts the pressure
value inside the cuff into readable and usable analog waveforms. The microcontroller
samples the waveforms and performs analog to digital conversion so that further
calculations can be made. In addition, the microcontroller also controls the
operation of the devices such as the button and LCD display. Since I have the
word 'portable' in our title, for sure all of the components are put together
in one package which allows a user to take it anywhere and perform a
measurement whenever and wherever he/she wants. It is undeniable that nowadays
people are more aware of the health conditions. One of the most widely used
methods to test the health conditions of an individual is to measure his/her
blood pressures and heart rate. I am very concerned about their health, decided
to work on this subject matter because we would like to build something that is
useful and useable in real life. A person’s blood pressure is expressed in
terms of the systolic pressure over diastolic pressure and is measured in
millimeters of mercury (mmHg), for example 140/90.
Below is reference ;
http://en.wikipedia.org/wiki/Blood_pressure
http://en.wikipedia.org/wiki/Sphygmomanometer
http://www.globalhealthaction.net/index.php/gha/article/view/14876/html
Comment as anonymous
http://en.wikipedia.org/wiki/Sphygmomanometer
http://www.globalhealthaction.net/index.php/gha/article/view/14876/html
Comment as anonymous
nice try..
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