RK-bot

RK-bot

RK-bot is the autonomous ground vehicle (UGV), designed to perform various agricultural and auxiliary tasks.

Purpose

The vehicle should provide a full life cycle for growing potatoes:

  • planting;
  • weeding;
  • plants condition monitoring (including a vegetation indices);
  • pest protection;
  • fertilizer application;
  • harvesting.

In addition, the vehicle can be used to perform other auxiliary tasks. For example, as an automatic mower.

Concept

RK-bot is powered by 2 lead-acid batteries (onboard voltage 24V) and equipped with 4 motor wheels (250 W power each).

To carry out work at all stages of the life cycle of a potato, the vehicle must be able to move both in an empty field and in sprouted (with tops). Chassis has a monstrously high clearance to ride along the furrows and not break the potato tops. Robot design provides for the simultaneous processing of two furrows of the potato field.

RK-bot over furrows

Vehicle width should be equal to the doubled furrow width. Since the width of the furrow can vary the vehicle track width can be easily adjusted. The vehicle is structurally composed of three large blocks: two side frames and a central compartment, interconnected by transverse elements. The sides are bolted to the cross members. Changing the track width is carried out by moving the sides frames closer/farther to the central compartment, followed by fixing to other holes.

Side frame mounting with fixing bolts.

Engineering & testing

Sorry, at this moment engineering reports only accessible in russian (I’ll try to translate it later… if I have time):

Current status of the project

UPD 10/03/2020: Added control unit with electronics. Wiring of the frame has been redesigned — now the control unit is connected to the side frames with detachable connections. The first full-fledged test of the platform has been carried out. There are problems with radio communication and navigation.

UPCOMING: Communication and navigation problems will be eliminated, side panels and solar panels will be installed on the robot. An antenna post will be installed on the garage / operation room to improve the range and quality of radio communication.

Gallery

Video

Frame manufacturing
Bench test
Field test
Field tests (august 2020)

Contacts

If you have any questions about this project or want to offer cooperation — feel free to contact me:

on LinkedIn

by email (engineering20380@gmail.com)