Conceptual Design

Establishing Functions

Si no	Functions
1	Getting started with an indicator.
2	Multi-directional movement.
3	Detect obstacle and change the direction.
5	Collection of dust and hold the dust in container.
6	Hold water and dispense it in required way.
7	Indicate process start and completion.

Design idea no	Objective	Score given	Justification
1	Aesthetics	Datum	Looks simple.
1	Ease of Use	Datum	Removes fine dust efficiently
1	Portability	Datum	It is portable
1	Use of standard parts	Datum	All parts except the fan are easily available
1	Cost	Datum	Caterpillar tracks are costly.
2	Aesthetics	++	Looks very attractive
2	Ease of use	+	Removes dust efficiently
2	Portability	0	It is a bit large
2	Use of standard parts	++	Parts are easily available and requires less modification.
2	Cost	+	Caster wheels are less expensive.

Sub Systems identified

1.User Interface unit.

2.Storage unit.

3.Cleaning unit.

4.Motility unit.

Morphological chart

Si no	Functions	Mean 1	Mean 2	Mean 3	Mean 4
1	Indication	LED	Beeps	Digital screen	Music
2	Mobility	Caster wheels	Omni wheels	Mecanum wheels
3	Obstacle detection	IR sensor	Ultrasonic sensor	LDR sensor	Visual equipment
4	Storage	Small box	Bag
5	Cleaning-Dust removal	Brush	Bristles	Vaccum	Dusting cloth
6	Cleaning-Mopping	Mop	Roller	Super sponge	Cloth piece