WEEK 11

14/12/2016

Activity: Research about the circuit diagram used to developed my project

Objective:To find the suitable circuit diagram that can be used for my project

Content/procedure:

• A lot of circuit diagram based on 8051 microcontroller project. I choose circuit diagram stepper motor interfacing with 8051. it is the simple circuit but I will add one more stepper motor

Result/analysis:

Stepper motor is made up of a stator and a rotator. Stator represents the four electromagnet coils which remain stationary around the rotator, and rotator represents permanent magnet which rotates. Whenever the coils energised by applying the current, the electromagnetic field is created, resulting the rotation of rotator (permanent magnet). Coils should be energised in a particular sequence to make the rotator rotate. On the basis of this “sequence” we can divide the working method of Unipolar stepper motor in three modes: Wave drive mode, full step drive mode and half step drive mode.

In this project, full drive step will use. full step drive is when  two coil are energised at the same time producing high torque. Power consumption is higher.

Figure 1: The stepper motor circuit interfacing with 8051 microcontroller

Conclusion

 I choose the above circuit to make the revision on designing my project. The all component are available at the market and internet..

WEEK 10

7/12/2016

Activity : Research about the component that will uses in the project

Objective:

• To study about the microcontroller AT89S52
• To study about the peristaltic pump using stepper motor
• To study about the dialyser

Content/Procedure:

1. AT89S52 is use in this project as microcontroller that will control all the process of the system.
2. Peristaltic pump using stepper motor to transporting the blood from the input to the output. 
3. water filter is use to replace dialyser in this project

Result/ analysis:

1. AT89S52 is 8K byte programmable flash memory
2. AT89S52 have 4 ports , 2 interrupts,3 timers and etc 
3. Stepper motor using unipolar mode

Figure 1 : AT89S52 pinout

Figure 2 : Peristaltic pump using stepper motor [1]

Conclusion

The microcontroller AT89S52 is suitable to drive this project and the peristaltic pump is used to transporting the fluid.

WEEK 8

23/11/2016

Activity: FYP Briefing #2 . Briefing about technical proposal wiriting report

Objective: To learn how to write a technical proposal writing report correctly.

Content/procedure:

• A briefing was held at Seminar Room Level  1
• We were briefed about how to write the technical report from A to Z
• The briefing was delivered by Madam Pusparini Dewi Abd Aziz
• A copy of handout is given to each students for reference

Figure 1: Memo for FYP briefing #2

Results/analysis:

1. Explanation from Madam Pusparini indeed has clear out all the confusion in my mind about what to do on the report. All the details were explained clearly together with examples. There were also students asked a few question to Madam. Madam has answered it excellently. 
2. The content of the technical report:

• Abstract
• Introduction
• Literature review
• Materials and methodology

Conclusion:

This workshop indeed is very helpful for us students. I get a clear image on how to start doing the proposal. I can now start doing my project proposal.

  

WEEK 9

30/11/2016

Activity: Do a research about the stepper motor and servo motor

Objective: To know more about the stepper motor and servo motor. 

Content/ Procedure:

1. Do a research about the stepper motor and servo motor
2. Do a comparison which is better to works as peristaltic pump in order to deliver the fluid from input to output.

Result/analysis:

     1. Servo motor

• Fast, high torque, accurate rotation within a limited angle 
• Generally a high performance alternative to stepper motors, but more complicated setup with PWM tuning.
•  Suited for robotic arms/legs or rudder control etc.

      2. Stepper motor

• Slow, precise rotation, easy set up & control
• Advantage over servo motor in positional control, where servo requires feedback mechanism and support circuitry to drive positioning, a stepper motor has positional control via its nature of rotation by fractional increments.

Conclusion

Stepper motor is better than servo motor because slow, precise rotation, easy to set up and control. Besides that, a stepper motor has positional control via its nature of rotation by fractional increments.

WEEK 7

9/11/2016

Activity: Designing the flow chart and flow process of the project

Objective:

• To design the flow process of the project
• To design the flow chart of the project based on the flow process .

Content/procedure:

1. A flow process is designed to show the general flow how it is works
2.  A flow chart is designed to show each of steps process in sequential order.

Result and analysis:

1. The flow process are designed based on figure 1 and figure 2
2. The flow chart are designed based on figure 3
3. This project is divided into two circuit system which is first is extracorporeal blood circuit and dialysate delivery system.

Figure 1: The flow chart of the Hemodialysis Machine Prototype

Figure 2: Functional Flow Block Diagram of Hemodialysis Machine Prototype

Conclusion: The process of the project is more clearer after designing the flow chart the process flow

WEEK 6

2/11/2016

Activity: Design block diagram of the project

Objective:

• To design the block diagram of the project

Content/ procedure:

• A simple block diagram is designed to show the input, the process and the output.

Result/ analysis:

1. The block diagram (figure 1) are design with the input, process and  output.  The input is consists of power supply, push button (1), and LCD display(1) while the output consists of filter (dialyser), push button (2), LCD display (2) and peristaltic pump. Other than that ,the microcontroller AT89S52 will controller all the system in this project
2. LCD display is used to shows each of the process of cleaning and filtering in order to give more understanding to students, nurses and community. 

Conclusions: 

The process of the project are clear after designing the flow chart and block diagram

WEEK 5

26/10/2016

Activity: Research more about the project

Objective:To get more information about my project

Content/ procedure: 

• Research is being done in finding a few more research papers that are almost similar with my project
• Used UniKL Online Resources website and another website to get more research papers from various places.

Result and analysis:

I have found 3 journals and 2 articles on the online website. 

Journal: 

1. Malin Holm, (October 2013),Simulating Dialysis: Concept Evaluation of a PC Training Simulator of Nurses. Uppasala: Uppasala University
2. Nieh H.M, (2010), Development of an Hemodialysis Simulator for Interdisciplinary Learning. Taiwan: National Taiwan University
3. PerOlof Bengtsson & Jan Bosch, Dialysis Software Architecture Design Experiences

Article:

1. maximintegrated.com/en/design/partners-and-technology/solutions/healthcare/dialysis-machines.html/tb_tab2
2. http://www.kidney-facts.com/kidneys-health/how-do-kidneys-work/