6.1 3D MODELLING:

PARTS

MODEL

6.2 FLOW CHART :

SUBSYTEM 1:SENSING UNIT

SUBSYSTEM 2:INTERFACE UNIT

SUBSYSTEM 3:COVERING UNIT

SUBSYSTEM 4: PROCESSING UNIT

FULL FLOWCHART:

6.3 CIRCUIT DIAGRAM:

SUBSYSTEM 1:SENSING UNIT

SUBSYSTEM 2:INTERFACE UNIT

SUBSYSTEM 3:COVERING UNIT

SUBSYSTEM 4:PROCESSING UNIT

FULL CIRCUIT:

6.4 RESOURCE SPECIFICATION:

MOTOR SIZING:

Acrylic sheet:

L=30cm , B=20cm , H=1cm

Volume=600 cm^3
Density of Acrylic = 1.18 g/cm^3
Mass=708g

Rack:

L=30cm , B=2cm , H=1cm

 Volume = 60 cm^3
 Density of Acrylic = 1.18 g/cm^3
 Mass = 70.8g

Pinion:

R=2cm , H=1cm

 Volume = 12.56 cm^3
 Density of Acrylic = 1.18 g/cm^3
 Mass=14.82g

Total Mass:

M = 708+70.8+14.8+15 
M = 808.62g 
M = 0.808Kg

Force(F)= M*g

F = 0.808*9.81 
F = 7.92 N

Max load on motor(L)= F * FOS

L = 7.92*1.5
L = 11.88 N

Torque = L * d/2

T = 11.88*4/2
  = 11.88*2
T = 23.76 N-cm
T = 2.42 Kg-cm

THE REQUIRED MOTOR IS 60 RPM LOW NOISE DC MOTOR WITH METAL GEARS-GRADE A

ADAPTER SIZING:

The required adapter for DC motor is 1A, 12V Adapter

6.5 BILL OF MATERIALS:

S.NO	PARTS	MATERIAL USED	DESCRIPTION	QUANTITY REQUIRED
1	Roof	Acrylic sheet	30cm20cm1cm	1
2	Micro controller	Arduino mega	AT2560	1
3	Dc motor	-	60 rpm	2
4	Buzzer	-	-	1
5	Pinion	Acrylic	4cm*1cm	1
6	Rack	Acrylic	30cm2cm1cm	1
7	Rain sensor	-	3cm2cm1cm	1
8	Resistors	-	-	6
9	Nuts and bolts	steel	-	8
10	Breadboard	Fiber	5.5*17(cm)	1
11	Shaft	Acrylic sheet	3011(cm)	1
12	Wheels	Acrylic	4*1(cm)	6