Distance activity debugging and calibration: Difference between revisions

From OLPC
Jump to navigation Jump to search
No edit summary
No edit summary
Line 13: Line 13:
*Found a linear relationship between the actual distance between the computers and the program's calculated distance.
*Found a linear relationship between the actual distance between the computers and the program's calculated distance.
** y = .9941x - .0178
** y = .9941x - .0178
** Superscript: {{sup|2}} = .9999 Superscript: r<sup>2</sup>
** Superscript: r<sup>2</sup> = .9999


Graph of Results
Graph of Results

Revision as of 16:13, 11 January 2008

Project Aim - To test the accuracy of the "Acoustic Tape Measure" activity on the XO laptop and attempt to find ways to resolve accuracy issues based on our results.

Project Collaborators -

Experimental Design -

  • Experiment 1 - Use "Acoustic Tape Measure" to measure pre-set distances and check the accuracy. Repeat this 3 times at each pre-set distance and over multiple different pre-set distances (1m, 2m, 4m, 8m, 16m, 32m).

Results -

  • Found a linear relationship between the actual distance between the computers and the program's calculated distance.
    • y = .9941x - .0178
    • Superscript: r2 = .9999

Graph of Results

Graph of Acoustic Tape Measure Accuracy Experiment.gif


NOTE:

Distance of 16m did not display results that were at all accurate. After a certain point somewhere above 10m the program is no longer accurate.