RESEARCH
Modeling the
physical body
calculating weight of
the robot and
performing other
calculations feasible
with the design
Starting practical
implementation of
project.
Estimating the
cost. Buying
suitable
components such
as
microcontrollers,
motors, sensors,
encoders etc.
Figure: 1
Comparison with
existing projects.
Meeting the
client and
getting the list of
project
deliverables.
Starting the
mechanical
assembling of the
project including
the mechanical
calculations,
adjusting motors
with the wheels
and according to
weight adjusting
a sheet to keep
batteries and
sensors.
Interfacing the
sensors with
microcontrollers
and Implementing
and testing of HBridge motor
driver circuit and
ensuring proper
working of the
robot’s motors
giving enough
power to the
robot to cut grass
properly and
driving the robot
stably
Figure 1 shows the basic framework of how we plan to complete our project. The first phase
shows the research we have to do. This is not the first time an automated lawn mower is going to
be designed a lot of students have done it as a final year project also there are a lot of
manufacturers in the market hence studying them would help us in completing our project on
time. The second phase shows how we model project it includes all the calculations needed for
example the power required to move the machine and this would help us find the suitable motors
we need. The next phase describes the most initial phase towards the physical implementation of
the project i.e. after researching making a list of suitable and needed components and estimating
the cost and choosing the best components in the estimated range. The next phase includes the
mechanical assembling of the project which includes fixing motors to the wheels and allocating
space to keep other required components such as a battery, sensors etc. The last phase includes
interfacing the sensors to the microcontroller and testing the working project. The first task in the
last phase is to construct an H-Bridge circuit to drive the motors which control the wheels of the
mower which control the blade. The blade’s speed is controlled by the speed of wheels also the
wheels control all the motion such as making the robot to go left or right when needed
accordingly. Encoders are used to keep a closer eye on the angle it moves to take a turn i.e. better
positioning.