{"id":13750,"date":"2019-08-15T14:37:51","date_gmt":"2019-08-15T04:37:51","guid":{"rendered":"http:\/\/legoeng.local\/?p=13750"},"modified":"2020-09-21T15:55:56","modified_gmt":"2020-09-21T05:55:56","slug":"line-following-and-proportional-controls-ev3","status":"publish","type":"post","link":"http:\/\/legoeng.local\/line-following-and-proportional-controls-ev3\/","title":{"rendered":"Line Following and Proportional Controls (EV3)"},"content":{"rendered":"
The aim of this challenge is to create a robot vehicle that follows a line and avoids collisions with obstacles – including other vehicles!<\/p>\n
All you need for the most basic version of this challenge is a simple two-wheel robot, such as the Robot Educator Model with a Colour Sensor (referred to, and used as, a Light Sensor throughout this post), positioned at the front of the robot, pointing down.<\/p>\n
Instructions for the Robot Educator Model are in the booklet that comes with the core set and in the EV3 Software.<\/p>\n
Control theory<\/em> is a branch of engineering and mathematics that is particularly important in robotics. It deals with how a dynamic system with inputs (e.g. a robot) responds to feedback to modify its behaviour.<\/p>\n This challenge provides a very basic introduction to controls<\/em>, including simple bang-bang <\/em>controls and proportional<\/em> controls.<\/p>\n Here is a selection of challenge ideas and sample solutions\u2026<\/p>\n Can you create a robot that slows to a gentle stop when it sees an obstacle?<\/em><\/p>\nChallenge ideas<\/h2>\n
1. A gentle stop<\/h3>\n