Detailed Methodology
SRI VENKATESHWARA COLLEGE OF ENGINEERING
Vidyanagar, Bengaluru - 562157
Department of Electrical and Electronics Engineering
FUZZY LOGIC BASED AUTOMATED SEED SOWING ROBOT
PRESENTED BY: GUIDE:
ANUSHA K Dr. Vijayashree R Budyal
ACHUTH KUMAR V HOD Dept of EEE SVCE Bengalur
PRAJWAL KUMAR J
SAHANA BR
To select a seed based
on Fuzzy Logic
Step 1: Checking for the
temperature and pH value of the soil using sensors
Step 2: Fuzzy logic approach of selection
of seed
§ The crisp inputs temperature, season
and pH value of the soil are considered and the membership
functions are assigned for each input value considering the triangular type
of membership function and mamdani model as shown in Figure 1
Figure 1: Mamdani Model
§ The output membership function which
represents the seed selection is assigned as shown in Figure 2
Figure 2: Output membership function
§ Rules for the Fuzzy inference system are
assigned considering centroid method of deffuzification as shown in Figure 3.
Figure 3:
Rule View
§ Rule view indicating the output is shown
as shown in Figure 4.
Figure 4: Centroid
method of deffuzification
For example
let the temperature of the soil be 29 in degree Celsius and season be 5 i.e. May
with a Ph value of 5.6 then the output value obtained from the fuzzy logic be
0.746 through our intelligence we decide
the seed to be selected as peas
For Automated
Seed Sowing Robot
Step 1: Bluetooth is used as a
communication module through which the data (i.e.) the output of fuzzy logic,
the seed selected is sent to the microcontroller and motor adjusts the distance
between the two seeds for that corresponding seed.
Step 2:
The system is turned on manually by activating the switch, and the
process of seed sowing is carried out for a particular distance between the two
seeds, if any disturbance encountered while seed sowing it is sensed through IR
sensor and alarm is generated and the disturbance is cleared.
Step 3: The sowing of seed is followed by
closing the soil, and watering the seed through hydraulic system for proper
germination of seed.
Step 4: Power supply is given drawn from the
renewable energy which is solar energy using solar panel for the entire process
of seed sowing.
Block diagram indicating the above process is
shown in Figure 5(a) and Figure 5(b)
Figure 5 (a)
Seed selector block diagram
Figure 5(b): Block
Diagram of Automated seed sowing robot
Seed Sowing Mechanism (Robot)
It
is used for the application of seed sowing, we are using wiper motor. The below
Figure 3.4(a) and figure 3.4 (b) shows seed sowing mechanism. As the shaft of motor
can be turned by the required degree which is attached with the hopper
containing seeds, the mechanism of seed sowing is achieved easily. It consists
of nozzle through which the seed displacement takes place and a single seed
selector for sowing singe seed at a time .Solar panel is used to provide
electricity for the movement of the robot.
Figure 6(a): Seed
sowing robot structure
Figure 6(b): Outer
sketch of the robot
Circuit Diagram
The circuit diagram for automatic
seed sowing is as shown in the figure 7
Figure 7 Circuit Diagram for
Automatic movement of robot for seed sowing
Flowchart
Flowchart representing the process of Fuzzy Logic is
shown in figure 8 and the process of automatic seed sowing is shown in the
figure 9
Figure 8 Fuzzy Logic Flowchart
Figure 9 Flowchart representing
robotic movement
Table indicating the output of fuzzy for four different seeds at different value of temperature ,season and moisture content
Temperature
|
Season
|
pH
|
Selected
Seed Value
|
Selected
Seed
|
26
|
5
|
5.2
|
0.125
|
Bengal Gram
|
26
|
5
|
5.4
|
0.125
|
Bengal Gram
|
26
|
5
|
5.6
|
0.125
|
Bengal Gram
|
26
|
5
|
5.624
|
0.233
|
Bengal Gram
|
26
|
5
|
5.628
|
0.25
|
Bengal Gram / Groundnut
|
26
|
5
|
5.63
|
0.258
|
Groundnut / Peas
|
26
|
5
|
5.64
|
0.296
|
Groundnut / Peas
|
26
|
5
|
5.8
|
0.5
|
Groundnut / Peas
|
26
|
5
|
6
|
0.5
|
Groundnut / Peas
|
26
|
5
|
6.2
|
0.5
|
Groundnut / Peas
|
26
|
5
|
6.4
|
0.5
|
Groundnut / Peas
|
26
|
5
|
6.6
|
0.5
|
Groundnut / Peas
|
26
|
5
|
6.8
|
0.5
|
Groundnut / Peas
|
26
|
5
|
7
|
0.5
|
Groundnut / Peas
|
26
|
6
|
5
|
0.5
|
Groundnut / Peas
|
26
|
6
|
5.1
|
0.125
|
Bengal Gram
|
26
|
6
|
5.2
|
0.125
|
Bengal Gram
|
26
|
7
|
5.624
|
0.233
|
Bengal Gram
|
26
|
7
|
5.628
|
0.25
|
Bengal Gram / Groundnut
|
27
|
7
|
5.624
|
0.233
|
Bengal Gram
|
27
|
7
|
5.628
|
0.25
|
Bengal Gram / Groundnut
|
29
|
5
|
5.622
|
0.794
|
Soybean
|
29
|
5
|
5.623
|
0.746
|
Peas
|
29
|
5
|
5.8
|
0.875
|
Peas
|
29
|
5
|
6
|
0.875
|
Peas
|
29
|
5
|
6.2
|
0.625
|
Peas
|
29
|
5
|
6.4
|
0.625
|
Peas
|
29
|
5
|
6.6
|
0.625
|
Peas
|
29
|
5
|
6.8
|
0.625
|
Peas
|
29
|
5
|
7
|
0.5
|
Groundnut / Peas
|
29
|
6
|
5
|
0.5
|
Groundnut / Peas
|
29
|
6
|
5.2
|
0.5
|
Groundnut / Peas
|
29
|
6
|
5.4
|
0.5
|
Groundnut / Peas
|
29
|
6
|
5.6
|
0.5
|
Groundnut / Peas
|
29
|
6
|
5.62
|
0.875
|
Soybean
|
29
|
6
|
5.8
|
0.875
|
Soybean
|
29
|
6
|
6
|
0.875
|
Soybean
|
29
|
6
|
6.2
|
0.875
|
Soybean
|
29
|
6
|
6.24
|
0.736
|
Peas
|
29
|
6
|
6.4
|
0.625
|
Peas
|
29
|
6
|
6.6
|
0.625
|
Peas
|
29
|
6
|
6.8
|
0.625
|
Peas
|
29
|
6
|
7
|
0.5
|
Groundnut / Peas
|
29
|
7
|
5
|
0.5
|
Groundnut / Peas
|
29
|
7
|
5.2
|
0.5
|
Groundnut / Peas
|
29
|
7
|
5.4
|
0.5
|
Groundnut / Peas
|
29
|
7
|
5.62
|
0.875
|
Soybean
|
29
|
7
|
5.64
|
0.875
|
Soybean
|
29
|
7
|
5.8
|
0.875
|
Soybean
|
29
|
7
|
6
|
0.875
|
Soybean
|
29
|
7
|
6.2
|
0.875
|
Soybean
|
29
|
7
|
6.24
|
0.736
|
Peas
|
29
|
7
|
6.4
|
0.625
|
Peas
|
29
|
7
|
6.6
|
0.625
|
Peas
|
29
|
7
|
6.8
|
0.625
|
Peas
|
29
|
7
|
7
|
0.5
|
Groundnut / Peas
|
30
|
9
|
6.2
|
0.5
|
Groundnut / Peas
|
30
|
9
|
6.4
|
0.5
|
Groundnut / Peas
|
30
|
9
|
6.6
|
0.5
|
Groundnut / Peas
|
30
|
9
|
6.8
|
0.5
|
Groundnut / Peas
|
30
|
9
|
7
|
0.5
|
Groundnut / Peas
|
30
|
10
|
5
|
0.5
|
Groundnut / Peas
|
30
|
10
|
5.2
|
0.5
|
Groundnut / Peas
|
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