Tree Surveying See the Tree See Teacher Guide

Tree Surveying See the Tree See Teacher Guide

Tree Surveying See the Tree See Teacher Guide for printing instructions Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797 2006 Carnegie Mellon Robotics Academy Opening Activity Pick any two places you travel between frequently, such as home and school, or classrooms in different buildings. Describe to someone who is not familiar with the route, how to get from the first place to the second.

Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797 2006 Carnegie Mellon Robotics Academy Opening Activity Navigation cues There are two major navigation methods that people use: Landmarks Dead Reckoning Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797 2006 Carnegie Mellon Robotics Academy

Opening Activity Navigation cues - Landmarks Landmark navigation means orienting and guiding oneself based on the positions of features in the world, such as signs and easily noticed objects (sculptures, etc.) Example: Bus Stop to School As soon as you get off the bus, turn left toward the green newspaper stand, and walk that way down the street until you see an intersection with a large fountain. Turn right on that street, and go until you see the school on your left, its a stone building with a bright blue sign. If you see the subway station, you went too far. Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797

2006 Carnegie Mellon Robotics Academy Opening Activity Navigation cues Dead Reckoning Dead Reckoning means estimating positions and orientations based on a geometric sense of position Example: Bus Stop to School As you get off the bus, youll be on 72nd Street. Head north about a mile until you reach the intersection of 72nd and Highbrooke Ave. Turn right onto Highbrooke and follow it east for about half a mile. The school should be on your left. Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797

2006 Carnegie Mellon Robotics Academy Opening Activity Navigation cues There are two major navigation methods that people use: Landmarks Dead Reckoning Most people actually use both Which one should your robot use? Both? Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797 2006 Carnegie Mellon Robotics Academy

Opening Activity Navigation cues in the field The Treeplenish plantation has the following landmarks already: Trees somewhat evenly spaced, in straight rows A visible, but flat, irrigation pipeline running to each tree, perpendicular to the row You are allowed to add your own navigation aids for the robot at any time; however, you may not remove the irrigation pipeline or move the trees Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797 2006 Carnegie Mellon Robotics Academy

The Situation You are now able to measure the width of any object using your caliper, and relate the measurement to a real size Now you need to somehow get to the trees to take your measurements!

This Investigation will focus on a small portion of the programming your robot will need in order to find the trees and traverse the plantation Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797 The robot went looking for trees, and it sure found them 2006 Carnegie Mellon Robotics Academy Summary Navigation can use a combination of landmark-based and dead reckoning

methods The plantation already has some landmarks built in that you can use You can add your own landmarks This Investigation will get you started working with some of the navigation, but most of it will be left for you to complete during the Plan, Prototype, and Test phases of this project Designed for use with the LEGO MINDSTORMS Education NXT Software and Base Set #9797 2006 Carnegie Mellon Robotics Academy

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