ED TEMPLATE 2

PROBLEM DEFINITION.

• Design an attractive & efficient automatic clothe folding machine which can be placed indoor to fold only t-shirts/shirts. The size of the t-shirts & shirts should be in between (small-large)(46cm chest-59cm chest).The machine should work with less energy consumption. Weight of the machine should not exceed 3-4 kg. The dimensions of the machine should be (50cm broad - 60 cm long). The cost of the machine should not exceed Rs 4000. It should fold only one cloth at a time. It should only fold t-shirts and shirts.

* USE CASE DIAGRAM

* BLACK BOX REPRESENTATION

* GLASS BOX REPRESENTATION

*FUNCTIONAL STRUCTURE

USE CASES	SUB FUNCTIONS LIST
1.User interface	First the machine should be switched on & it will display message to put the cloth inside it. Then after putting cloth the machine make use of IR sensors to detect the cloth presence and display a message to fold the cloth if cloth is detected and the folding starts.
2.Cloth identification.	By the use of IR sensors the machine would be able to identify wether the cloth is put in the machine or not.
3.Folding of cloth	After the IR sensors detects the cloth then the machine will start folding the cloth.
4.Folding complete	After folding is complete the LED screen displays a message "cloth is folded" & then the user switches off the machine and takes out the folded cloth.

MORPHOLOGICAL CHART

FUNCTIONS	MEAN-1	MEAN-2	MEAN-3	MEAN-4
1.Display message	LED screen	Remotely controlled(wifi or blurtoooth)	mobile app	manually controlled(through paper)
2.Selection of operations	buttons	mobile app	touchscreen	voice command
3.Cloth identification	IR sensors	mannually	motion sensors	--------

CONCEPT-1

Cloth folding machine using servo motors along with hinge rods.

CONCEPT-2

Cloth folding machine using gears with servo motors.

CONCEPT-3

Mannual cloth folding machine.

CONCEPT-4

Cloth folding machine using DC motor with rack and pins

CONCEPT SELECTION

Assign weightage to each of the objective

Objective	Weightage
Safety	4
Easy to use	4
cost	3
Least mannual influence	5
Use of standard parts	4

PUGH CHART

Objective	Concept-1	Concept-2	Concept-3	Concept-4
Safety	0	0	Datum	0
Easy to use	+	+	Datum	-
Cost	--	-	Datum	-
Leat mannual influence	++	++	Datum	++
Use of standard parts	-	0	Datum	-

Objective	Concept-1	Concept-2	Concept-3	Concept-4
+ Score	14	14	0	10
- Score	10	3	0	11
Total score	4	11	0	-1

Justification

Since concept-2 has scored the most ,we select concept-2 as our final design idea.