Solar Powered Multi Purpose Autonomous Robot

1.1 Introduction  Basically,  we develop a robot to benefits of human. We develop such a robot to perform a task  in  many ways.First,  of all  I wnt to  share you  an idea  about its fuctionality  of the fully automated solar grass cutter is a g

Project Title

Solar Powered Multi Purpose Autonomous Robot

Project Area of Specialization

Internet of Things

Project Summary

1.1 Introduction 
Basically,  we develop a robot to benefits of human. We develop such a robot to perform a task  in  many ways.First,  of all  I wnt to  share you  an idea  about its fuctionality  of the fully automated solar grass cutter is a grass cutting robotic vehicle powered by solar energy that also avoids obstacles and is cutting the grass without the need of any human interaction. The bot uses 12V batteries to power the vehicle movement motors as well as the grass cutter motor. We also use a solar panel to charge the battery so there is no need of charging it externally. The grasscutter and vehicle motors are interfaced to an 8051 family microcontroller that controls the working of all the motors. It is also interfaced to an ultrasonic sensor for obstacle detection. The microcontroller moves the vehicle motors in forward direction in case no obstacle is detected. On obstacle detection the ultrasonic sensor monitors it and the microcontroller thus stops the grass cuter motor to avoid any damage to the object/human/animal whatever it is. The microcontroller then turns the vehicle as long as it gets clear of the and then moves the grass cutter in forwarding direction again. This project of a solar-powered automatic grass cutter will relieve the consumer from moving their own lawns and will reduce both environmental and noise pollution. Ultimately, the consumer will be doing more for the environment while doing less work in their daily lives. 

The lawnmower is an aid in the mundane task of grass cutting and tending to lawns. Due to the revolution of the green movement in the present scenario the industries with major campus areas are changing the percentage of greenery in the campuses and increased greenery causes increased effort and money to tend to. In such cases, the lawnmower proves to be a god sent. Due to increased availability of system on chips, the lawnmower can be automated very easily and also the reduced size and cost of Dc motors cause the system to be independent of fossil fuels to be able to tap into renewable energies. The presence of Ultrasonic sensors and light-dependent resistors in a smaller and cheaper packaging causes the bot to be more aware of its surroundings. 

Due to the presence of Arduino in the system causes an increase in the module that can be added.
The traditional design of lawn movers had motored powered engines which required regular maintenance such as engine oil and greasing. They also created a lot of noise pollution and air pollution. In the cold and harsh environment, fossil fuel-powered motors tend to freeze and not run. These problems are solved by using electric motors. They are also much greener because they use a solar panel. The mover uses battery chorded system causes a range as limitation and damage to the chords.
 

Project Objectives

Aims and Objectives 
Automated solar grass cutter is a fully automated grass cutting robotic vehicle powered by solar energy that also avoids obstacles and is capable of fully automated grass cutting, without the need of any human interaction.
The system uses 12V batteries to power the vehicle movement motors as well as the grass cutter motor. We also use a solar panel to charge the battery so that there is no need of charging it externally. The grass cutter and vehicle motors are interfaced to an 8051 family microcontroller that controls the working of all the motors. 
The microcontroller moves the vehicle motors in forward direction in case no obstacle is detected. On obstacle detection, IR sensor monitors it and the microcontroller thus stops the grass cuter motor so as to avoid any damage to the object/human/animal. Microcontroller then turns the vehicle until it gets clear of the object and then moves the grass cutter in
forward direction again. 
 

Project Implementation Method

Development Methodology 
The 10 watts solar panel is used to charge the batteries which are rechargeable. the solar panel gives maximum 18v and 580mA current.we need a charging circuit between solar panel and batteries. The charging circuit has a voltage regulator which regulates voltage to 15v and one transistor to amplify the maximum current to circuit and diode is used .we use 12 voltage battery for entire circuit and another 12v volts for cutting blade
. The microcontroller 8051 takes the input from the ultrasonic sensors , when any interrupt or obstacle occurs the ultrasonic sensor senses the obstacle and gives feedback to microcontroller then according to the program which was given to microcontroller its turns left or right.It waits up to some delay and senses again and same procedure works.if no detection occurs to ultrasonic range then it moves forward until it finds some detection. B The movement of bot is done by using the two DC motors of 100 rpm.
The motors are driven by using motor driver (L293D) .It is aslo known as H-Bridge.The main purpose of using the motor driver is because that DC motors require the minimum voltage as 9v as input.
But the microcontroller gives output as only 5v so we require 9v to 12v for driving the motors.So we use motor driver which takes 5v as input and gives the 12v for motors. The L293D motor driver drives only two motors which can move in both directions. And the cutting blade is used to cut the grass.to cut any type grass we need high rpm motor, so we used 1400 rpm motor for cutting blade.The motors run directly by 12v rechargeable battery.The DPDT switches are used for movement of bot and cutting blade separately
 

Benefits of the Project

Benefits of the Project 
The Automatic grass can be used by physically disabled and elderly people in homes, hospitals, airports and old age homes. It will facilitate them to cut the grass independently in any direction without being pushed by another individual. 

Technical Details of Final Deliverable

The hardware devices used in this projects are listed in the below section
Solar Panel
Solar Charge Controller
Motor
Cutting Blades
Battery
Ultrasonic Sensor 
Push Button
Node MCU WIFI 
Arduino
Motor Driver
Relays
Vero Board
Connecting wires
Motors
Robert Assembly
 

Final Deliverable of the Project

HW/SW integrated system

Core Industry

Telecommunication

Other Industries

Others

Core Technology

Clean Tech

Other Technologies

Internet of Things (IoT)

Sustainable Development Goals

Affordable and Clean Energy, Industry, Innovation and Infrastructure

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com