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RT @chr1sa: Donkeycar 4.4 released with tons of new features, including path learning (useful with GPS outdoors), better Web and Lidar supp…
RT @NXP: We are already biting our nails in anticipation of the #NXPCupEMEA challenge! 😉 Did you know there are great cash prizes to be won…
RT @gclue_akira: レースまであと3日。今回のコースは激ムズかも。あと一歩
#jetracer https://t.co/GKcEjImQ3t
RT @chr1sa: The next @DIYRobocars autonomous car race at @circuitlaunch will be on Sat, Dec 10.
Thrills, spills and a Brazilian BBQ. Fun…
RT @arthiak_tc: Donkey car platform ... Still training uses behavioral cloning #TCXpo #diyrobocar @OttawaAVGroup https://t.co/PHBYwlFlnE
RT @emurmur77: Points for style. @donkeycar racing in @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/Y2hMyj1…
RT @SmallpixelCar: Going to @diyrobocars race at @UCSDJacobs https://t.co/Rrf9vDJ8TJ
RT @SmallpixelCar: Race @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/kK686Hb9Ej
RT @PiWarsRobotics: Presenting: the Hacky Racers Robotic Racing Series in collaboration with #PiWars. Find out more and register your inter…
RT @Hacky_Racers: There will be three classes at this event: A4, A2, and Hacky Racer! A4 and A2 are based around UK paper sizing and existi…
RT @NeaveEng: Calling all UK based folks interested in @diyrobocars, @f1tenth, @donkey_car, and similar robot racing competitions! @hacky_r…
RT @araffin2: 🏎️
After hours of video editing, I'm happy to share a best of my Twitch videos on learning to race with RL.
🏎️
Each part is…
Replies
how do i integrate the ultrasonic sensors with the drone? apart from landing the drone I also want to navigate it indoors by avoiding objects.
step by step instructions will be helpful
1) GPS - to proximitely (about 15 meters) find the land
2) Ultrasonic sensors - to precisely (1 inch) find the land from altitude about 6 meters
3) Pressure altimeter (about 15 cm) - to find the land second time
I'd find the land descending with ultrasonic sensor with normal UAV speed. Then I'll lift up and make second pass for landing with low speed knowing the height very precisely.
I think two passes for landing make it very carefull.
Infrared sensors have a similar problem where the varying reflectivity of different surfaces can make things effectively invisible.
Other alternatives include laser altimeter (very expensive), gps, and barometric altimeter. The Piccolo autopilot is able to do autonomous landing using gps and barometric altitudes. And I expect that it could do it using just the gps altitude.