What does it take to win a lawnmower competition

Differential Global Positioning Techniques to guide them and laser and sonar to watch for obstacles. All this to trim a patch of land without human intervention and a desire to win $15,000 dollars first price.

All of this took place at the annual Autonomous Lawnmower Competition held at the Wright State University in Fairborn. Where WSU won the coveted price, followed by Quebec`s Ècole the Technologie Superieure who took second place and a tied third for Ohio University and Evansville, Ind.