5.1 Assign weights to the objects

SI NO	Objectives	Weights
1	Safety	5
2	Ease of use	6
3	Portability	8
4	Use of standard parts	7
5	Cost	9

5.2 Pugh chart

Design objectives	Weights	Design 1	Design 2	Design 3	Design 4
Machine should be Safe to use	5	+	+	+ +	DATUM
Machine should be Easy to use	6	-	+	-	DATUM
Machine should be Portable	8	+	-	+	DATUM
Quality of the materials used should be good	7	-	- -	+ +	DATUM
Machine should be cost efficient	9	+	+	-	DATUM
score(+)		22	20	32
score(-)		13	22	15
Total		35	42	47

5.3 justification for the scores given

Design No.	Objective	Score allocated	Justification for the score
1.	Machine should be safe	5	The machine is safe and user friendly
	Machine should be easy to use	-6	Machine is bit complicated to use
	Machine Should be portable	8	The machine is heavy and occupies space
	Machine should be cost efficient	-7	Machine is expensive
	Quality of materials used should be good	9	The materials used are of good quality
2.	Machine should be safe	5	This machine is user safe
	Machine should be easy to use	6	Machine is easy to use
	Machine Should be portable	-8	Machine is less portable
	Machine should be cost efficient	-14	This machine costs a bit more
	Quality of the materials used should be good	9	The quality of the materials used is good so the cost increases
3.	Machine should be safe	10	The machine is safe and provides good user experience
	Machine Should be easy to use	-6	The machine is really easy to use
	Machine should be portable	8	The bot is portable and occupies less space
	Machine should be cost efficient	14	The machine is cost efficient to help the farmers
	Quality of materials used should be good	-8	The quality of the parts used is good and is cost efficient
4.	Machine should be safe	0	DATUM
	Machine Should be easy to use	0	DATUM
	Machine should be portable	0	DATUM
	Machine should be cost efficient	0	DATUM
	Quality of the materials used should be efficient	0	DATUM

5.4 Selected Design:

5.5 Function Clustering:

5.6 Subsystem List

SI NO	Subsystems
1.	Accepting the response unit
2.	Movement
3.	Plucking unit
4.	Collecting and control

5.7 Subsystem Interaction:

Interaction Details:

(+ Means yes) (- Means no)

Subsystem: 1

Accepting the response	Movement	Plucking unit	Collecting and control unit
Energy
Data	+	+	-
Material	-	-	-

Subsystem: 2

Movement	Accepting the response	Plucking unit	Collecting and control
Energy
Data	+	+	+
Material	+	+	-

Subsystem: 3

Plucking unit	Movement	Accepting the response	Collecting and control
Energy
Data	+	+	+
Material	+	-	+

Subsystem: 4

Collecting and control	Movement	Accepting the response	Plucking unit
Energy
Data	-	+	+
Material	-	+	+

5.8 Design Information:

Plucking and collecting robot serves as a multi purpose semi-automatic agricultural robot, which is actually run by motor, remote controlled and is user friendly. The bot is of the dimension 2ft by 1.5 ft and is light weight. The robot can work for 8 hours on a regular basis. It can hold hold the weight upto 5 to 6 kgs. So basically the bot accepts the response from the user through remote control or by some app and it moves, plucks the fruits and collects them.