Would You like to know something more about our robots?
Today we are presenting You the one constructed by Blue Ocean Robotics. Our Denish Partner used the Vex IQ tools to create really nice and challenging construction!

Objective

A modified clawbot must be able to move in a certain pattern within a grid of colored squares and pick up balls of paper within the reach of its claw.

The purpose of the robot is to clear a certain pattern of paper balls using as many sensors as possible while also collecting the balls of paper in the bin on its back.

Definition of Robot type

  • It moves and turns using two motors, one for each side of the robot.
  • The robot has an arm with a claw attached to it, both the arm and the claw uses a motor to move.
  • The robot has a sort of bin on its back.
  • The arm of the robot in collaboration with the claw has to be able to place objects in the bin.
  • The robot can detect objects that are  within the reach of its claw, it uses a distance sensor for this.
  • When the robot detects an object within the claws reach it will move the object to bin on the back.
  • Because the robot is moving within a square grid, it should ideally only move in four directions, in order to do this, the robot needs to know its heading. It get this information using a gyro sensor.
  • The robot detects the color of the surface beneath it, it uses a color sensor for this.
  • The color information can be used to determine where the robot is in the grid and how much of the pattern has been cleared.

Robot Specification

The robot must be autonomous

  • Once the robot has been programmed and placed on the grid, it must not be touched.
  • The robot must not be remote controlled in any way.
  • It has to be able to do everything on its own.

The robot is equipped with:

  • motors that enables the robot to: drive, turn, move its arm and close its claw.
  • sensors that determine the amount of degrees the motors have turned.
  • a sensor that enables the robot to act based on the color of the ground.
  • a sensor that enables the robot to determine its heading.
  • a sensor that detects objects in within the reach of the claw.

There are no size restrictions on the robot, however, the robot has to be able to turn within a square of the grid. Furthermore, there are no restrictions concerning where the sensors or motors are placed on the robot. All in all, if the robot is able to do all of the aforementioned specifications, then all is well.

Grid Specification

The grid will be in three different colors: red, green and blue. These colors are chosen because the color sensor can more easily differentiate between these colors. The colors can be distributed in any way you see fit, however for this project, the grid will be arranged in a way similar to the grid of the board game New York 1901. The same goes for the patterns that are to be cleared.

Once again remember that the squares of the grid must be large enough for the robot to be able turn without hitting paper balls elsewhere in the grid. If you have built the clawbot specified for this project, the size of the squares has to be at least 30 x 30 cm. And they should be laid out without any space between them. It is highly recommended that the squares are somehow fixed to the ground, so they are not moving when the robot drives on them. The figure below shows an example of a grid layout (remember to add the balls of paper to the center of the squares).

Procedure Of Clearing The Patterns

  1. You have a pattern.
  2. Program the robot to clear the same pattern of paper balls
  3. Upload the program to the robot.
  4. Place the robot on the grid
  5. Start the program on the robot
  6. Let the robot finish its program
    1. unless it seems it will never stop on its own.


Categories: News

Continue Reading...

Would You like to know something more about our robots? Today we are presenting You the one constructed by Blue Ocean Robotics. Our Denish...

Read Post

Would You like to know something more about our robots? Today we are presenting You the one constructed by Blue Ocean Robotics. Our Denish...

Read Post