(WEEK 8) Hardware and Circuit

PCB Assembly

This Figure shows the circuit during process and testing on the breadboard

This Figure shows the assembly circuit  and testing on the prototype project 

This Figure shows the top view assembly circuit inside the box

The figure shows the circuit during do the testing for LCD circuit.

From the Figure  shows the complete process of the circuit development. The next processes of the project were program installation.

(WEEK 7) Apnea Belt

The apnea belt it’s include the stretch sensor and vibration motor. This belt will wrap around the baby chest to detect the expansion and contraction movement.

This figure shows the process to built apnea belt by sewing and cutting the fabric had selected for apnea belt.

This figure shows the process to put the vibration motor and put the connection wire to produce the vibrations.

This figure shows the stretch sensor had connected to apenea belt and process to put the connection wire to apnea belt.

This figure shows the complete process of development of apnea belt. The next process is combine with control board were program  installation.

(WEEK 6) Measurement of Stretch Sensor

During the testing for stretch sensor, there some result about the value resistance for each inch of stretch sensor.

 The picture above showed  the stretch sensor used for this project .It already cut in within 1 inch equal 0.5kΩ depend  to our project.

The result stretch sensor without expanded. (Sensor not stretch)

(WEEK 5) Testing circuit

The next activity is doing the testing circuit before do the program.

  This figure show the testing circuit for buzzer and vibration motor.This part is important because there all output devices.

This figure show the testing circuit for LCD display. The LCD will display the result based on the program.

(WEEK 4) Pin Assignment

Pin Assignment For Pic Microcontroller

For this part, the pin assignment is used to ensure the at which port to connect of all the circuit. It also use to determined which part is input(i/p) and the other part is output(o/p). Basically, pic 16f877 have four  i/p and o/p port which is port A, port B, port C and port D. By separate the i/p and o/p port, it will make the easier way to program the circuit part by part.

This pin assignment is important because its related when running the programming part and to the connection of the circuit is depend on this pin assignment.

(WEEK 3) Continued Current Progress

The first thing.. i decide to change the block diagram to more simple block diagram. The figure block diagram which is below.

This block diagram more simple and easy to understand. Because previous block diagram is caused the confused between input device and output devices.

(WEEK 2)

This week i do the check list to by the all component for my project.But i have the problem with my sensor, because the stretch sensor cannot get in Malaysia so i had to order this sensor at oversea and take about 3 week to reach.

Actually this stretch sensor or flexible stretch sensor cord

(WEEK 1) My Final Years Project 2

This years I have continue to doing my Final Years Project (2). Before start doing this project, i met my supervisor madam Zaridah bt Mat Zain to finalize my project.  Actually my project send the data using transmit and receiver, but after presentation last sem, my assessors sir Hisham comment a little bit about my project. He advice me to change the way to send the data, because the infant's respiratory is too small and maybe some problem occurred when sending a signal  using  transmit and receiver because the data or value also too small. So after doing the discussion with my assessors, we decide to change the transmitter and use the  normal wire.  

This picture above shown the block diagram before change

This new block diagram after change

Conclusion.... :-)

            As a conclusion the Home Apnea Monitor using stretch sensor is one device that simple project and easy to use compare in hospital machine. It is because this machine only should have stretch sensor to detect apnea disease. Base on explanation above, basically stretch sensor will contract and relax continuously during baby’s breathing. When the stretch sensor no contract, the signal will send to microcontroller (PIC) to process and to produce the output such as vibration motor and alarm or buzzer is ON.

Furthermore, the sensor will put in belt and wrapping around the baby chest. So no more electrode and wire on the baby’s skin. As a result, we know that this device suitable for use at home, as well as in hospital and clinics. It also use for basically healthy infants. Therefore is not recommended for unaccompanied use with respiratory high-risk infants where constant medical supervision and treatment.

Finally I conclude overall about the my proposal project during this semester.

so see u next semester to development this project... Gud Luck for my self...  

  keep smile always..  (^_^)

Work Plan

This our planing for this project during this semester and next semester.

Gantt Chart for FYP 1 

                                                                  Gantt Chart for FYP 2

Benefit For Apnea Monitor using Stretch sensor

Based on the objective on this project, we will propose method to using stretch sensor to apply them for this project. Actually this project also use as backup apnea monitor and has benefit to families have Sudden Infant Death Syndrome (SIDS) of their babies.

 It because apnea project design have a lot of advantage and easier to use compare with machine in hospital. This project not measure respiratory rate or heart rate, it only detect contraction movement of chest baby. Besides that,  it just simple project compare with machine before this .

Based on normal apnea project ,that machine have more parameter to check such as heart rate, oxygen level, and respiratory rate. Besides that, placing multiple leads and tape on their skin can lead to further damage, such as a rash or even a burn from the tape being repetitively pulled off and put back on. So it’s very difficult for the parent have not bravery to treat their baby. But, for this project only need stretch sensor, because this apnea monitor only prevent apnea by detect contraction movement of baby chest Therefore this machine will easier to use and not causes pain of baby skin.

Objective for my project...

 The main objective of this project is to monitor and help the baby breathing again when apnea (stop breathing) happens. Besides that, there have other objectives which are related each other as shown as below:

• -          The project is proposed to monitor the breathing’s baby by using stretch sensor to detect the contraction movement of baby chest.

• -          This project to propose to help baby breath again by using vibration motor while we put in belt around the chest baby.

• -          The project is also proposed to assist the parents for monitor their baby when the alarm is on.

• -          To promote greater compliance in using prescribed Home Apnea Monitor using Stretch Sensor among families with a medically at risk infant.

• -          To create cheaper cost and user friendly infant apnea monitor compare to the monitor that used in hospital.

 For more understand, I  also design the schematic design to show overview for my project.

Block Diagram of Home Apnea Monitor

Explanation of Block Diagram

The block diagram above is the overall system of the Home Apnea Monitor using Stretch sensor. This project control by PIC  microcontroller program. According to the block diagram, this project has built by two sections. The first section is master controller and master device. The second section is called Apnea belt, which is include stretch sensor and vibration motor.

If stretch sensor have no contraction happened, signal will send to PIC microcontroller. Counter will start to count from 0 to 20 second. If system has received below than 15 second, the system will be cut off the signal from stretch sensor. If systems have received more than 15 second, buzzer and vibration motor will be ON. When the baby breathing back to normal, the buzzer and vibration motor will be reset by programming system.

Research....

 This some research about the previous and current work.

  (Previous work)                                                                               

 (Current work)