Navigation in a tunnel

A detailed description of the main challenge today, which is Navigating a Tunnel

#630
23 Aug 2017
Tweet

Maze, Sensors

Body

Known turns

A known turn means you know the order of the turns. You are solving a task for a tunnel in which you will always have 90 degree turns in the following order: right, left, right, left.

We might say you are programming a highly specialized robot. When you cover more robotics classes you will learn how to move through a tunnel with unknown turns and even through a real labyrinth.

Unknown distance

Nevertheless, this is not a very easy task. You know the next turn is right but you do not know how far it is.
Your robot should be able to cope with both very short and very long tunnels, using the same program.

A tight tunnel

It is possible that the tunnel tube is very tight and your robot cannot turn. Which turn should you use in this situation?

Various types of turns

Today you can practice various types of turns. You have already know the three types of turns with two motors and a bearing wheel. Use them accordingly.

Courses and lessons with this Tutorial

This Tutorial is used in the following courses and lessons

Level A1. Introduction. Robotics with LEGO

Introduction to robotics - The first level of the Robotics with LEGO curriculum for students in second, third or fourth grades. A journey in space, with robots. Various constructions with robots are built. Learn how to control the motors so that the robot navigates around the Sun, the Moon and Earth in various ways. Getting to know the first of the sensors. The robot can feel its surroundings with the help of the Touch sensor and avoid obstacles.

142
133:42
187

Lesson 7 - Navigation in a Labyrinth

For students who will not take two levels in a row today is their last lesson.

Level A2. "Space exploration". Robotics with LEGO

The second level of the Robotics with LEGO curriculum for students in second, third or fourth grades.

A new sensor is introduced - the Ultrasonic distance sensor can help the robot avoid obstacles. Students work with new concepts like loop, degrees and medium motor. Robots can now do two different actions at the same time - while solving missions on a field, the third motor clears detected obstacles. The first robot with chain-treads is built.

63
3:02
117

Lesson 5 - Navigation in a Labyrinth

Returning feedback to students is important. We try to return feedback constantly in the classes. You should also try to return feedback in a structured way - in a form of a digit. Today you will have to grade your students following this article.

Robotics with LEGO - Level 1.0 - Adventure in Space

The first level of the Robotics with LEGO curriculum for students in fifth to twelfth grades.

Various constructions with robots are built. Learn how to control the motors so that the robot navigates around the Moon and Earth in various ways. Getting to know the first two sensors. The robot can feel its surroundings with the help of the Touch sensor and avoid obstacles.
The Ultrasonic distance sensor can help the robot avoid obstacles. Students work with concepts like loop, degrees and medium motor. Robots can now do two different actions at the same time - while solving missions on a field, the third motor clears detected obstacles.

126
123:52
150

Lesson 4 - In the depths of Mars

Introduction

Robotics with LEGO - Level 1.0 - Adventure in Space

The first level of the Robotics with LEGO curriculum for students in fifth to twelfth grades.

126
123:52
150

Going in the cave on Venus

Python with LEGO Mindstorms EV3 - Level 2

In the second level of Python for EV3 robots, students learn in-depth the touch sensor. The sensor is used as an input device for manual control of machines, as well as a sensor for autonomous robots. In a pair of lessons, students build a control panel for the grabber and the movement of a crane. Programming wise, students learn how to fork code with "if-else" constructions, how to create conditional and forever loops with "while" and how to negate conditions with "not" operator. In the end of the lesson, robots can detect obstacles and avoid them, so that they traverse a simple labyrinth.