Works

Laser Tool for Killing Weeds April 2021 - June 2021

Project Cyclops : Laser Tool for Killing Weeds

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This is all-new laser killing weed removal for the Farmbot designed by our team. This tool is designed to destroy weeds using Thermal Technique : Laser by detecting weeds using Camera and weed detection The Camera will detect for weeds and give those coordiantes to the farmbot and give add/subtract the off-set of the laser mount location and turn on the laser for 500ms and spray water on the location to complete the sequence

Prologue | Farmbot Weeder

Manual Weed Removal

The current process of removing weeds is manual process by identifying the weeds and removing them is extremly tiring and time-consuming.

  • Disadvantages
  • Removing incorrect plants
  • Time Consuming Process

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    Weeder on Farmbot

    It works by driving the tool vertically into the soil in order to push any small weeds under the soil, and disrupt their young fragile root systems.


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    Inspiration


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    The experiment showed that laser treatment of the apical meristems caused significant growth reduction and in some cases had lethal effects on the weed species The biological efficacy of the laser control method was related to wavelength, exposure time, spot size and laser power.


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    FarmBot

    FarmBot is a robotic open hardware system that assists anyone with a small plot of land and a desire to grow food with planting, watering, soil testing, and weeding it. It uses a raspberry Pi, Arduino, and other awesome components, including weather resistant materials. Currently, there are over 300 devices in operation all around globe


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    Laser Killing Weeding Tool

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    The Camera will detect for weeds and give those coordiantes to the farmbot and give add/subtract the off-set of the laser mount location and turn on the laser for 500ms and spray water on the location to complete the sequence

    Technical Details

    Programming the Arduino using Arduino IDE

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    Wiring

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    Programming the WebApp

    Step 1 : Visit the Website my.farm.bot and login using farmbot account details


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    Step 2: Select on the sequences icon from the webapp and select new sequence


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    Step 3: Upon clicking on the new sequence,then click on “Add Command” and then select “Move” and choose weeds from the drop-down list


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    Step 4: Click on “Add Command” and then select “Control Pheripheral” and choose Port where the Laser is connect,choose Digital Mode and set it to “ON”


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    Step 5: Select on the “Add Command” and choose “WAIT” command and input 500ms (ie, 5s)


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    Step 6: Select on the “Add Command” and choose “Choose Peripherals” and select the Pheripherals port and set mode to “OFF”


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    Step 7: Select on the “Add Command” and choose “Water Plant” and choose Weed LocaƟon from the drop-down list


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    Weed Detection

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    Photos of Laser Mount and Working

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    Testing Videos









    Team Members


    Rahul Arepaka | Project Lead and Designer

    Ethan Hadimani | 3D Mount Designer

    Atin Sakkeer | Programmer

    Sanjay Pramod | Farmbot Sequence Programmer