The second `Autonomous Robot Beach Flag Competition` sponsored by KONDO CO. LED was carried out at Chiba Institute of Technology ( JR Sobu-line Tsudanuma in Chiba Prefecture ) on Nov. 23, 2008. The first competition was held in the 4th KHR Anniversary robot competition on June 7, 2008. Robot Beach Flag game is similar to human's one. Two robots start from each opposite side and push down the pole sat in the center. The robot push down the pole at first is winner. The game was carried out in the court that of KONDO CUP Succor. The pole ( beach flag ) attached 40kHz ultra sonic wave sender was sat in the center circle.
As radio control is prohibited, all robots have to move autonomously. Just robots based KHR-1, KHR-2HV or KHR-1HV could join the competition. There were two classes, one was student class and the other was expert class. The robot joined the student class has to use KCB-1 as sensor control board and the robot joined expert class has no limitation concerning sensor control board. Eight team robots joined to the student class and 2 robots joined to the expert class.It is necessary for winning the competition to reproduce the movement accurately. Because the winner is the robot could push down the pole at first in each game. The robot has to win each game. The Robot with best time is not always the champion.
The winner of the student class was `Yakushin Ver. Kaijin`(Nihon Kougakuin College of Hachioji), the second place was `Isokou-Walker`(Kanagawakenritsu Isoko-technological high school) and the third place was `Gram Replica`(Shibaura Institute Technology SRDC). The best time of the student class was 25.14 sec by `Isokou-Walker`. The winner of expert class was `BLACK TIGER`(IKETOMU).
The best time robot `Isokou-Walker` has 3 of ultra sonic wave sensors (USW) and 5 PSD sensors. When the robot start, the USW sensor system was used and when the robot was in the short distance from pole, the PSD sensor system was used. The videos are as follows:
Isoko-Walker recorded the best time 25.14 sec.
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