Archive for March, 2008
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Views: 380
LEDs locked & loaded for video training. -
Views: 304
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Views: 328
Video masked out. -
Views: 324
Stack of blade pitch frames. -
Views: 319
If everything works, U get a nifty plot of blade pitch vs servo angles. Fortunately for us, the camera & servos remained synchronized but it's real noisy data. -
Views: 303
Normal copters fly by tilting the swashplate. VicaCopter flies by setting 3 zones of blade pitch. Feed blade pitch angles into the neural network & get servo PWM out. -
Views: 323
The T-Rex in autopilot with the neural network mixing. The A560 doesn't have the low light performance to capture these test flights. An EOS 5D is on the way probably for next week. -
Views: 327
50% machine, 50% biology, 10,000,000% sales tax.
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Views: 406
CAT as viewed from the ground -
Views: 334
Autonomous hover -
Views: 339
2 waypoint mission -
Views: 336
Attempt to draw a heart vertically. There is no line rule for vertical movement & altitude tracking is horrible anyway. -
Views: 340
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Views: 317
The horizontal heart definitely looked better on the Goog. This is probably showing GPS error. -
Views: 369
Love those plastic blades.
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Views: 521
Russian Heroine analyzes VicaCopter's ball link pliers. -
Views: 460
Russian Heroine observes VicaCopter in autonomous hover. -
Views: 321
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Views: 516
Russian Heroine & VicaCopter. -
Views: 329
Russian Heroine commanded a yaw movement, which caused VicaCopter to fly off course in the wind. -
Views: 319
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Views: 352
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Views: 297
Improved altitude hold got us more closeups. -
Views: 300
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Views: 314
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Views: 304
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Views: 310
Next came an autonomous pirouette at 135m with no operator guidance. That torture test took 4 minutes, but she did it in the confined space. She definitely holds altitude doing that, but now has new cyclic oscillation. -
Views: 290
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Views: 290
New confidence in altitude hold allowed some 30sec shots.
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Views: 373
360' pirouette replayed -
Views: 304
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Views: 313
VicaCopter is now an expert in the 2 point mission. Suspect some of the vortex ring states R play between cyclic & collective. -
Views: 295
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Views: 298
The campaign to restart camera operations began. The shutter button is operated on. -
Views: 297
The mane board is opened up. Nothing useful here. -
Views: 333
Patching shutter connections. -
Views: 294
Shutter connections routed outside.
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Views: 339
Built a test stand to isolate it from rotor wash. Could not be calibrated properly like this, although we haven't seen much difference with the calibration. -
Views: 324
In autopilot to allow the underside photos. Sonar is not guiding altitude here. -
Views: 302
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Views: 301
Recorded sonar data vs. GPS.
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Views: 345
Failed mission with loss of altitude in the trouble area. -
Views: 280
Actual speeds achieved using various target speeds. -
Views: 274
4m/s is clearly beyond the PE curriculum. -
Views: 295
Successful mission at 4m/s. -
Views: 305
Altitude hold wasn't there. Basically had no confidence in GPS & reduced the collective feedback to 0. -
Views: 273
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Views: 322
This was attempt 4 in the wind. Suspect she hit a period of calm air at the end. -
Views: 249
It's much easier to visualize the flight using anaglyphs. -
Views: 279
Pilot view puts her much farther away than GPS indicates. -
Views: 268
Much easier to get the ground in frame when photographing uphill. -
Views: 254