5 CONCEPT EVALUTION AND PRODUCT ARCHITECTURE - S-Division-2022-2023-Odd/Repo-07 GitHub Wiki
PUGH CHART.
Objectives |
Weights |
Safety |
8 |
Ease of use |
6 |
Portability |
7 |
Use of standard parts |
5 |
Cost |
4 |
Cleaning efficiency |
8 |
Design Objectives |
Weights design 1 |
design 2 |
design 3 |
design 4 |
Safety |
8 |
+ |
++ |
datum |
Ease of use |
7 |
+ |
+ |
datum |
Portability |
3 |
- |
- |
datum |
Use of standard parts |
5 |
0 |
0 |
datum |
Cost |
4 |
- |
+ |
datum |
Cleaning Efficiency |
8 |
+ |
++ |
datum |
Score(+) |
23 |
43 |
0 |
23 |
Score(-) |
7 |
3 |
0 |
3 |
Total |
35 |
15 |
40 |
0 |
Justification Score
Design No. |
Objective |
Score Allocated |
Justification for the Score |
|
Safety |
8 |
safety is the most imp. thing while using any device |
|
Ease of Use |
7 |
if it is not easy to use then there is no use of making this bot |
1 |
Portability |
-3 |
it is imp. but requires time to shift |
|
Use of Standard Parts |
0 |
so that it my be easy for the product will take less time to be built |
|
Cost |
-4 |
the manufacturer will manufacture the product within the range of the consumer |
|
Cleaning Efficiency |
8 |
good when compared to the datum |
2 |
Safety |
16 |
it is more safer when compared with other design options |
|
Ease of Use |
7 |
easier than the datum |
|
Portability |
-3 |
less portable when compared to the datum |
|
Use of Standard Parts |
0 |
all the products are built by usage of parts available in the market |
|
Cost |
4 |
slightly increases when compared with the datum |
|
Cleaning Efficiency |
16 |
Best one when compared to all the designs |
3 |
Safety |
0 |
it is safe, but not as much as the other |
|
Ease of Use |
0 |
needs some extra manual efforts |
|
Portability |
0 |
it is the most portable one when compared to all the other selected designs |
|
Use of Standard Parts |
0 |
all the products are built by usage of parts available in the market |
|
Cost |
0 |
it is one among the lowest ranging design |
|
Cleaning efficiency |
0 |
does not clean the corners of the board |
4 |
Safety |
8 |
it is as safe as the first one |
|
Ease of Use |
7 |
easier than the datum |
|
Portability |
-3 |
less portable when compared to the datum |
|
Use of Standard Parts |
0 |
all the products are built by usage of parts available in the market |
|
Cost |
0 |
it is one among the lowest ranging design |
|
Cleaning efficiency |
8 |
good when compared to the datum |
Selected Design

Cleaning unit consists of rack and pinion, brush, whiteboard, supportive board etc. Rack and pinion mechanism consists of a circular pinion of a diameter of 1.5 inches and long rectangular rack of a length of 18 inches. The pinion is coupled with the motor that means the pinion rotates with the shaft of the motor. The rotary motion of the motor is transferred to the rack & the rack moves in translatory direction. The brush is an important part for this project. To clean the white board smoothly a brush of better quality has been used. It has attached to the brush holder with the help of glue & the brush holder is attached to the end of the rack with a nut & bolt. Foam has been used as the cleaner. A sheet of 10 inches × 6 inches size has been used as a white board. The whiteboard is enclosed within two reels. A wooden block is used as a supporting base for the whole system and
is made up of plywood. It is of length 50cm, breadth 5cm and height 40cm. It is used to support the whiteboard sheet at the time of writing. The motor and rack & pinion mechanisms are also fitted on wooden block. The reels are fixed with this supportive board by the help of angle plate.
FUNTION CLUSTERING

SUBSYSTEM LIST
SL.NO. |
SUBSYSTEM LIST |
1 |
Indication Unit |
2 |
Controlling Unit |
3 |
Sensing Unit |
4 |
Cleaning Unit |
INTERACTION DETAILS
SUBSYSTEM 1 |
Subsystem 2 |
Subsystem 3 |
Subsystem 4 |
SPATIAL |
Yes |
No |
No |
DATA |
No |
No |
No |
MATERIAL |
No |
Yes |
Yes |
SUBSYSTEM 2 |
Subsystem 1 |
Subsystem 3 |
Subsystem 4 |
SPATIAL |
Yes |
No |
No |
DATA |
No |
Yes |
Yes |
MATERIAL |
No |
No |
No |
SUBSYSTEM 3 |
Subsystem 1 |
Subsystem 2 |
Subsystem 4 |
SPATIAL |
No |
No |
No |
DATA |
No |
Yes |
Yes |
MATERIAL |
Yes |
No |
No |
SUBSYSTEM 4 |
Subsystem 1 |
Subsystem 2 |
Subsystem 3 |
SPATIAL |
No |
No |
No |
DATA |
No |
Yes |
Yes |
MATERIAL |
yes |
No |
No |