Thread: Using navX MXP to get robot velocity
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Unread 18-11-2015, 11:54
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Software Mentor
AKA: Scott Libert
FRC #2465 (Kauaibots)
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Join Date: Oct 2011
Rookie Year: 2005
Location: Kauai, Hawaii
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Re: Using navX MXP to get robot velocity
Quote:
Originally Posted by Gdeaver View Post
Advanced optic flow algorithms may work for FRC bots.
Interesting to note - Kauailabs is working on a prototype of this - PX4Flow optical flow sensor plus navX-based sensor plus LEDs plus proximity sensor - and sensor fusion. Illumination and optical focus are tricky issues, esp at higher speeds (higher frame rates), and an autofocus mechanism may be required to make it easy to configure. As you say, it's not trivial, and our goal is to determine its accuracy, repeatability, and if it can be manufactured as a plug n play product at a reasonable cost. If enough progress is made we hope to present some preliminary results next year. Fusing optical flow and imu with wheel encoders as a fallback if optical flow SNR is too low may be the way to go.