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Valen
Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
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If somebody wants to test it at home they setup the same system that would be at the arena.
What is simple about driving a robot in a combat arena?
What is your proposed system?
An IMU is ~$100 from sparkfun and you would use it for high rate correction of angle, the PC would give it longer term information.
Its basic control systems theory, you use a fast noisy sensor and correct it with a slow absolute sensor.
Especially as getting accurate orientation information from the video is going to be very difficult, commands from the PC would be of the form, more left, more right based on velocity vector.
Trying to put the sensors on a moving platform that has scissorhands trying to bash its face in is doomed to failure/lots more work for no real benefit.
You change your control system problem from a 2D image manipulation into 3D spatial awareness, your sensor system now needs to scan its entire environment and account for the sensor platform being deformed and destroyed whilst its in use. Anything that can see outside the bot, is going to get destroyed eventually.
you have now drastically increased the processing power required, and required that this processing power be in perhaps the most hostile environment on the planet for electronics. (ok the stuff they put in copperhead laser guided tank shells might have a higher G-loading, but its only once and only in the one direction)
It also means that you aren't going to have autonomous beetle or ant weight bots, well nothing thats better than a turtle anyway. _________________ Mechanical engineers build weapons, civil engineers build targets
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Wed Dec 01, 2010 8:28 am |
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chris...
Joined: 20 Oct 2010
Posts: 28
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quote:
Originally posted by Valen:
If somebody wants to test it at home they setup the same system that would be at the arena.
You're proposing that all builders will need a similar setup at home as for the arena. Because builders will have to test it somewhere, thats one way to make a costly hobby even more costly.
quote:
What is simple about driving a robot in a combat arena?
You have to write the anticipations of situations into the software, the human controller doesnt
quote:
What is your proposed system?
Using a kinect to verify an IMU is not a good idea
Have a different league where its self contained bot vs bot that way all disadvantages are equal
quote:
An IMU is ~$100 from sparkfun and you would use it for high rate correction of angle, the PC would give it longer term information.
Its basic control systems theory, you use a fast noisy sensor and correct it with a slow absolute sensor.
You plan to filter for adjustment of input with a high rate noisy sensor, and can determine the difference between noise and vibrations.
The kinect doesnt suffer from noise, paralax errors, clipping and is accurate enough at the distance to cover the entire arena?
Another question will their be any obstacles, know or unknown?
If unknown then youll need more snesors on the robot
If known, then avoiding them will be trivial
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Wed Dec 01, 2010 9:09 am |
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