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WEEK 13

EXPERIMENT FOR OUTDOOR ENVIRONMENT

The purpose of this experiment was to achieve the last objective of this project which is to implement the product to the real situation of the environment. The process of the experiment starting with choosing the slope or ramp and also to test at the uneven or non-smooth road to detect any slope. This experiment also required few subject to be tested on the wheelchair while the experiment was held. The experiment will required following information/measurement:

i)                    Subject’s information

ii)                  Procedure of the experiment

iii)                Data and results

iv)                Figure during the experiment

Subject's Information:

SUBJECT 1
Name	Nooramirah Binti Hanipah
Age	24 years old
Height	156 cm
Weight	44 kg
Disability	Normal
Comfort rates (out of 5)	4

SUBJECT 1
Name	Nooramirah Binti Hanipah
Age	24 years old
Height	156 cm
Weight	44 kg
Disability	Normal
Comfort rates (out of 5)	4

Data Analysis:

For this measurement length of the slope/wheelchair ramp, it is a roughly measurement according to the selected ramp we choose outside the building. According to the standard measurement of the wheelchair ramp, the preferable ramp height and inclined angle for a wheelchair need to be suitable with the condition of a wheelchair bounded. 

Example of maximum ramp height and inclined Angle

According to figure above, we can relate that the example of the measurement of the ramp that we selected for this experiment is almost the same like the example of E ramp. This is corresponded to the maximum inclination of the wheelchair’s seat when going through the slope.

Going down a slope/wheelchair ramp

Going up the slope/wheelchair ramp

At static state (beginning of the experiment)

According to 3 figure above shows that during the experiment was being held. As the condition of the slope is not smooth and a bit uneven, it will affect the reading of the sensor when the wheelchair start to move. So thus the results of the experiment will be affected too. From all of the figure shows that the position of the wheelchair’s seat has been stabilize to angle 90° which is according to the stable position of the seat a static state.

Results

With Subject and without subject:

Testing the wheelchair with subjects

Sequence of the process of the experiment with no subject going down the slope

Sequence of the process with a subject on the wheelchair going upward slope

1. Without Subject

Going upward slope	Measurement	Going downward slope
10s	Time taken for the seat to stable when on the slope	13s
18° (maximum angle of the seat)	Angle of the seat when on the slope	17° (maximum angle of the seat)
10s	Time taken for the seat to reach the stable state	10s
0.2ms-1	Velocity of the wheelchair	0.15ms-1

2. With Subject

Going upward slope		Measurement	Going downward slope
Subject 1	Subject 2	Time taken for the seat to stable when on the slope	Subject 1	Subject 2
12s	10s		10s	12s
18°	18°	Angle of the seat when on the slope	17°	17°
6s	3s	Time taken for the seat to reach the stable state	8s	4s
0.17ms-1	0.2ms-1	Velocity of the wheelchair	0.2ms-1	0.17ms-1

All above experiment were done to achieve the last objective of this experiment which was to implement the system to the real situation. Thus the project is successfully done and presentable. Next week will be the PRESENTATION DAY for all FYP 2 Students.