Rescue Project

Rescue Project

1. Course

   • Landing sites
     • Coloured in green
     • is start and finish zones
     • Informs EV3 he is finished
   • Pathway
     • Black Lines
       • Coloured in black
       • White surrounds the side of the line
     • Intersection markers
       • Left side of all lines (not including maze)
       • Guides the EV3 to turn the correct direction
         • Turn left
     • Maze
       • Multiple pathways
       • Intersection markers
         • 4 markers
           • 2 on the left side of the lines
             • Turn left
           • 2 on the right side of the lines
             • turn right
   • Obstacles
     • Moveable box
       • Will not press touch sensor
     • immovable box
       • Will press touch sensor
       • To heavy to move
     • Same dimensions

2. Requirements

   • Objectives
     • Follow the path
       • Turn corners
       • Turn the correct way at intersections
     • Move/ navigate around objects
       • Identify if object is movable or immovable
         • Push movable object out of the path
         • Move around immovable objects and return to the path
   • Extension Objectives
     • Celebration dance
       • When EV3 reaches end do a dance
     • Complete the full course
       • Finish all non-extension objectives

3. Limitations

   • Cables
     • Check if they are in the correct ports
       • Move to the correct ports if they are not already
   • Bluetooth connectivity issues
     • Use a cable to connect to a computer
   • Ultrasonic sensor is detecting objects that aren't there
     • Move the arms out of the way
   • Laptop is out of charge
     • Charge laptop before coming to class

4. EV3 Hardware

   • Sensors
     • Ultrasonic sensor
       • retrieves the distance of an object from EV3
         • Uses centimeters
         • Can sense a maximum distance of 255cm
     • Colour sensor
       • retrieves the colour below itself
         • Uses numbers 0-100
         • Senses the reflected light it produces
         • <16=black
         • >78=white
     • Touch Sensor
       • Senses if sensor is pressed, depressed or not pressed
         • Retrieves data using a boolean value
           • 0=not pressed
           • 1=pressed
     • Gyro sensor
       • Retrieves angle rotated of EV3
   • Tools
     • Wheels
       • Large motors
         • Less accurate than small motors
         • Faster movement than small motors
       • Is used to make EV3 move
     • Arm
       • Small motors
         • more accurate than large motors
         • Slower movement than large motors
       • Can be used to move objects