week 14: preparation for demonstration of the project

title:

preparation for demonstration of the project 

objective:

1. to finalize all the information about project 
2. to make a preparation for presentation day.  

procedure:

1. finish the part mechanical of the project which assemble all the component to develop a prototype of wheelchair.
2. combine the mechanical part and electronic part. 
3. make a poster which contain the objective, block diagram, methodology, application, and abstract of the project.

result:

1. the finished project with the combination of hardware and electronic part.
2. the finished poster of the project.. 

conclusion:

the preparation for the presentation is have been done.. 

Week 13: Testing Emg circuit on the UV board.

Title: 

Testing Emg circuit on the UV board.

Objective:

1. To measure the output value from the circuit those follow the movement of shoulder.

Procedure:

1.   Connect the battery to the power supply of the circuit.
2.   Attach the electrode to the right or left shoulder.
3.  Upload the program to the Atmega 328.
4.  Measure the output produce by the movement of shoulder through the serial monitor.

Result:

1. The output value that display on the serial monitor is unexpected and not display the same value according to the previous testing.
2. Suppose the output value will increase when the muscle contract and decrease when the muscle subcontract. 

Conclusion:

The circuit need to troubleshoot again to know why this problem occur. there have a problem that cause the circuit not function and the the project can't run smoothly.  

Week 12: Find the suitable material for the prototype.

Title: 

Find the suitable material for the prototype.

Objective:

1.       To find the suitable material needed for the prototype of wheelchair.

2.       To get the right material that can suit with the concept of wheelchair.

Procedure:

1.  Firstly find the material that can develop the body of wheelchair.
2. Find the right size for the tire that need to attach to the wheelchair.
3. Get the right material for the base that need to attach the motor.
4. Find the suitable type of motor that can hold the weight for the prototype of wheelchair.

Result:

1. Pvc pipe has been choose for develop the body of the prototype.
2. The tire needed for the prototype is 2 different of tire with the different size. 
3. The selected base is acrylic for attach with the motor.
4. The motor that suitable with this prototype is the gear box motor which it can hold the load until 10kg.

Conclusion:

All the material needed to develop the prototype of wheelchair has been determined. The next step for the hardware part is needed to recombine all this material to become a finish prototype of wheelchair. All this material is selected according to fulfill the concept of wheelchair which all step need to refer the concept of wheelchair. 

Week 11: Discussion with Mr. Syazwan

Title: 

Discussion with Mr. Syazwan

Objective:

1.  To discuss the problem occur in the hardware part
2. To get the better solution for solve the problem occur. 

Procedure:

1. Meet with my supervisor, Mr. Syazwan and tell the problem occur during want built the hardware part.
2.  Inform the result get after meet with Mr. Chen.
3. Discuss the solution with Mr. Syazwan.

Result:

1.  All the solution that been given by Mr. Chen can be done but the main problem is the price for each material needed.
2. The main problem occur in my project is costing.
3. Then Mr. Syazwan decides that I need to build a prototype only then do it in actual size of wheelchair.

Conclusion:

The planning for the hardware part of this project has been changed because of the limitation costing.  Budget to develop this project has over than budget that has been given by UNIKL, so the solution for solved this problem is develop a prototype. 

Week 10: built the hardware part of the project

Title:

 Built the hardware part of the project

Objective:

1.  To built the hardware part of the project.
2.  To design appropriate wheelchair for the disabled person.

Procedure:

1. Buy the suggested motor for this project which is the power window motor. 
2. Get the wheelchair for reconstruct the design.
3. Bring the material needed for the hardware part to the welding shop for recombine the power window motor with the wheelchair.
4.  Then meet with Mr. Chen which the owners of the welding shop. Explain to him about my project and asked him to recombine the material.

Result:

1.   Mr. Chen gives opinion about this project which he says that the motor is not suitable to use because the motor can’t move if the load exceed than 100 kg. so this motor is not suitable for this wheelchair that the maximum load is 150 kg.
2. Mr. Chen also gives another solution for this project.

·         Use drill than use the power window motor. 

·         Use the motor that use in electric bicycle. 

·         Use AC power supply than use DC power supply. 

Conclusion:

This hardware can’t be done because the motor is not suitable for the project. For the better solution, I need to discuss this problem with my supervisor, Mr. Syazwan to get the better solution to solve this problem.  

week 9: test the Emg circuit

Title:


 Test the Emg circuit in the laboratory


Objective:


To test the Emg circuit in the breadboard
To measure the output produce when muscle stretch and unstretch using muscle from arm 


Procedure:

• Connect the electrode to the arm 
• Connect the battery to the power supply circuit
• Measure the output produce by the muscle

Result:

Conclusion:


The muscle will increase the voltage when the muscle stretch and the muscle also produce the voltage during relax mode which the voltage is decrease.  

week 8: Construct EMG circuit

Title:

Construct EMG circuit on the breadboard

Objective:


To develop and construct Emg circuit for the project. 


Procedure:

• need to construct the power supply for the circuit. 

• signal acquisition phase for EMG sensor

• signal conditioning which for amplification and rectification the signal 

• the complete circuit for EMG circuit on breadboard 

Result:

fully construct the Emg circuit on the breadboard and ready to tested in the laboratory 




Conclusion


 to construct  and develop the circuit, there have e few step that need to follow. the arrangement of component need to be construct acccording to the schematic diagram for getting the correct output.