aakash gyan(2bv12cs001) amruta kallimath(2bv12cs016) amulya varote(2bv12cs017) anand...
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MICROCONTROLLER
PROJECT:SINGLE-AXIS
SOLAR TRACKER.
Aakash Gyan(2BV12CS001)Amruta Kallimath(2BV12CS016)Amulya Varote(2BV12CS017)Anand Biradar(2BV12CS018)Anish Kumar(2BV12CS020)
Under the guidance ofProf.Aruna NayakProf.Vishwanath GaragadProf.Umadevi
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PROBLEM DEFINITION:
Inefficient utilization of solar energy if fixed axis solar panel systems are used.
The solar panels must remain in front of sun during the whole day. But due to rotation of earth those panels can’t maintain their position always in front of sun. This problem results in decrease of their efficiency.
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OBJECTIVE: The aim of our project is to utilize the maximum
solar energy through solar panel. For this a digital based automatic sun tracking
system is proposed. This project helps the solar power generating
equipment to get the maximum sunlight automatically, thereby increasing the efficiency of the system.
The solar panel tracks the sun from east to west automatically for maximum intensity of light.
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COMPONENTS: 8051 controller 8051 Demo Board 555 Timers L293D,Motor driver LDRs Resistors Single patch chords DC motor
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BLOCK DIAGRAM: LDR
8051Microcontroll
er
TIMERS
L293D DC MOTOR
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CIRCUIT DIAGRAM:
IN12
OUT13
OUT26
OUT311
OUT414
IN27
IN310
IN415
EN11
EN29
VS
8
VSS
16
GND GND
U1
L293D
XTAL218
XTAL119
ALE30
EA31
PSEN29
RST9
P0.0/AD039
P0.1/AD138
P0.2/AD237
P0.3/AD336
P0.4/AD435
P0.5/AD534
P0.6/AD633
P0.7/AD732
P1.01
P1.12
P1.23
P1.34
P1.45
P1.56
P1.67
P1.78
P3.0/RXD10
P3.1/TXD11
P3.2/INT012
P3.3/INT113
P3.4/T014
P3.7/RD17
P3.6/WR16
P3.5/T115
P2.7/A1528
P2.0/A821
P2.1/A922
P2.2/A1023
P2.3/A1124
P2.4/A1225
P2.5/A1326
P2.6/A1427
U2
AT89C51
light sensor1
light sensor2
controller
motor driver
motor connected to solar panel
8051 BASED SOLAR TRACKER SYSTEM
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PROGRAM:#include<reg51.h>
sbit sensor1=P1^0;
sbit sensor2=P1^1;
sbit mot1=P1^2;
sbit mot2=P1^3;
void main()
{
sensor1=sensor2=1;
mot1=mot2=0;
while(1)
{
if(sensor1==0 && sensor2==1)
{
mot1=1;
mot2=0;
}
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else if(sensor1==1 && sensor2==0)
{
mot1=0;
mot2=1;
}
else if(sensor1==1 && sensor2==1)
{
mot1=1;
mot2=0;
}
else
{
mot1=0;
mot2=0;
}
}
}
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SENSORS: Wide spectral response. Low Cost. Wide ambient temperature range.
Light Dependent Resistor (LDR) is made of a high-resistance semiconductor.
LDR is very high-resistance. Light Dependent Resistors (LDR) is very useful in
light sensor circuits.
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TIMERS:
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WHY NOT ADC INSTEAD OF TIMER?: ADC is more complex and it converts Analog to
digital depending upon the intensity of the “Analog in”.
It is just used to detect the signal. The 555 timer will put out positive pulses. The
pulse width is inversely proportional to the difference in voltage between the voltage at “ANALOG IN”.
555 is still in widespread use due to its ease of use, low price, and stability.
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L293D:MOTOR DRIVER:
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ADVANTAGES AND DISADVANTAGES:
Advantages:
More efficient due to single axis tracking. Lower Rates of Waste and Pollution. The conservation of non-renewable energy
resources. Reduction of Energy Usage. Renewable source of energy.
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Disadvantages:
Using this system at a time, we can control only one solar panel.
Higher hardware expenditure. Weather conditions can affect the system. Panel rotations require an extra power from outside of
power used that produce by panel itself.
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CONCLUSION:
There was much exposure to the knowledge of sensors, micro-controller, etc.
Good and challenging experience in the building of prototype.
The project is very helpful in efficient use of Solar energy.
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THANK YOU.........