GUIDED BY : Mr. PANKAJ CHAWLA (HOD. ELECTRICAL DEPT. )

SUBMITTED BY : UTKARSH SHARMA K10702 PARIDHI PAMNANI K11453 SHAHINA KAGZI K10707 ( BTECH , EE – 6TH SEM 3RD YR )

MAJOR ASSIGNMENT

FULLY AUTOMATED SOLAR GRASS CUTTER

Project Description Solar Operated Grass Cutter Bot Our project is a battery powered automatic

Grass cutter. Initially the user will control the Grass cutter

along a desired path and the mower will record the movements in order to later replicate them autonomously through AVR Programming.

It will have a solar powered charging station that will act as the starting and ending point of the moving and cutting process.

BLOCK DIAGRAM

CONNECTIONS

Function List Grass Cutter will have the ability to be controlled

Automatically. It will be able to store the desired moving path in

memory It will have wheels that control forward and backward

movement as well as turning Interaction between mower, Solar station, and control

unit Solar power to large battery to mower batteries Automatic shut-off if it tips over. Micro-controller to interact with and control other

components (motors for blades/wheels, Solar component, and power management circuit.)

Possible Extra Features• Integrated scheduling of mower.• Disable the mower if it leaves its

designated mowing area.• Automatic moving and turning through the

500ms delay given.• The regulation of AVR voltage through

7805 voltage Regulator.

Feasibility Our members consist of three EE students. We have previous experience with

microcontrollers and moving of robot with sensors and motor drivers from prior Projects.

Sound programming experience. Possible outsourcing of chassis construction

and mechanical functionality

More In-depth Look

System Implementation AVR will be the communication protocol used

by Programming . Two L293D motor drivers for controlling

wheels movement and turning. Battery voltages will be monitored using the

UPS converters via solar plates into the microcontroller and motor drivers.

Switches for set and Reset of system.

Risks Mechanical issues (motor mounting, frame

retrofit) – enlist mechanical major’s help. Motor issues (possible magnetic interference,

excessive power consumption) – might need to shield motors, use smaller motors and lighter frame.

Extra supply of current more than 1.5 m amp.

Shorting of battery and solar panel wires. Bot size to inherit Turning Issues.

APPLICATIONS

For Playgrounds (cricket ground, football ground etc.)

For House gardens

For small farms

For nurseries

ADVANTAGES

Compact size and portableNo fuel costNo pollutionEasy to move from one place to anotherLess wear and tearNon-skilled person can also operate

DISADVANTAGES

Blade failure

Manually operated

Difficult to operate in rainy seasons

THANK YOU