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Table of Contents
Lab report 5
Date: October 3rd 2008
Duration of activity: 8-?.??
Participants: Kasper, Bent and Johnny
The purpose of this exercise is to make a line following robot to compete int eh robot race.
Design
picture_of_whiteboard_design
We wanted to produce a stable car that would be able to react fast to changes in the course.
The stability, we decided, could be achieved by building the car as a tripod, based on the standard Lego car.
The motors will be placed on the two front wheels, and the passive turning wheel will be placed in the back.
the idea is to build the car with three light sensors placed in front of the car. One in center, and two placed just outside the track (when it is straight).
This placement will enable us to use a strategy much like the homing strategy.
Building the car
picture_of_the_built_car
maale_armen1maale_armen2
We did not have three NXT light sensors available, so we decided to use the one that we did have for the center sensor, and then use two RCX light sensors for the ones on the sides.
Programming
TODO: Insert the code here.
Test1
small wheels. movie of first run. First time trial, 31,8 sec
Test2
Larger wheels First time trial, 25,0 sec
Test3
Reduced lengt of the sensor arm. Caused Marvin to turn to late and crash into the wall. Therefore we maintain original length of the sensor arm.