"We're getting two weird behaviors from a VN-100 - only when installed in a piece of equipment, not when on the desk or in the lab. On the desk or the lab, it's awesome. Ever seen either of these?
First, the hard/soft iron compensation…"
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John Brashear
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helder left a comment for John Brashear"Hi John,thanks for your reply.
Is your product a Stand-alone operation product?
I would like to use a rc plane for helping the volunteer state emergency services fight fires.
I have a rc heli but i think the plane is better.
I was thinking of…"
John Brashear left a comment for helder"Hi Helder,
I am not to familiar with the Ardupilot, so I spent some time looking over it and it seems like a nice product. To answer your question it really depends upon how comfortable you are with embedded programming on the ATMEGA168 onboard the…"
helder left a comment for John Brashear"Hi John,looks like a great product.Do you think it can be added to the Ardupilot?
Since it does all the hard work onboard it shouldnt be to hard too add to the ardupilot im hoping."
John Brashear commented on Chris Anderson's blog post New 9DOF IMU--$400-$500. Looks good"I wasn't aware that the DevBoard was using the velocity vector from the GPS. If thats the case then the DevBoard would be at times an AHRS since it has at least two vectors. I'm not to familiar with the performance of the DevBoard in terms…"
John Brashear commented on Chris Anderson's blog post New 9DOF IMU--$400-$500. Looks good"Hi Michele,
Then VN-100 would very work well for a balance robot. One of the difficulties in building a robot of this type is dealing with the gyro drift. With the VN-100, the onboard kalman filter stabilizes the gyro to give you a drift-free…"
John Brashear commented on Chris Anderson's blog post New 9DOF IMU--$400-$500. Looks good"Hey guys, I just noticed that our product was posted on your website. I have seen some confusion as to the difference between an AHRS and an IMU. An IMU consists of an orthogonal instrument cluster of 3-axis accelerometer and gyros. The UAV DevBoard…"
Profile Information
- About Me:
- Interested in attitude sensors and micro aerial vehicles.
- Tell us a bit about your UAV interest
- www.vectornav.com
- Hometown:
- Tyler, TX
Comment Wall (4 comments)
- At 11:08am on June 22, 2009, helder said…
- Hi John,looks like a great product.Do you think it can be added to the Ardupilot?
Since it does all the hard work onboard it shouldnt be to hard too add to the ardupilot im hoping.
- At 9:05am on June 23, 2009, helder said…
- Hi John,thanks for your reply.
Is your product a Stand-alone operation product?
I would like to use a rc plane for helping the volunteer state emergency services fight fires.
I have a rc heli but i think the plane is better.
I was thinking of putting solar panels to recharge while flying for added flying time, and laser sensor(or similar) for altitude.
The ardupilot has a atmel 328, and i think it runs at 120mips.
Im going to get the bee module with the largest range, so i can fly way way points for fire or fire bugs detection.
The video would get sent back to fire fighters to detection and police for evidence.
Well in theory anyway!
Australia,America and Portugal have some of the worst fires in the world.And i have lived in two of the three and witnessed the destruction.
So last year when i visited relatives in Portugal i told the fire fighters i would be back in two years with some help from above.lol
Do you think your product could make a rc plane hover like a heli in headwind?
Any help or suggestions would be great as its for a good cause.
- At 10:14am on June 24, 2009, John Brashear said…
- Hi Helder,
If you are referring to flying the VN-100 development board as it is on your plane without having to surface mount the VN-100 sensor on a separate board, then yes is can be used as a stand-alone product. If you want to have your plane hover in a headwind as described then you will need to use the Navigation+ stabilization version of the Ardupilot and then modify the code to use the roll and pitch angles from the VN-100 sensor instead of using the FMA Co-Pilot sensor. The VN-100 is an order of magnitude more accurate in pitch and roll angle determination than the FMA, so your controller should work well. I am not familiar with the Ardupilot, so I am not sure how much work would be involved in making this modification. I wish you the best of luck on your project, as it sounds like an excellent practical use for R/C aircraft.
-John
- At 3:24pm on June 4, 2010, Richard Bowers said…
- We're getting two weird behaviors from a VN-100 - only when installed in a piece of equipment, not when on the desk or in the lab. On the desk or the lab, it's awesome. Ever seen either of these?
First, the hard/soft iron compensation routine doesn't finish, even given an hour to run and reducing the number of measurements.
Second, whether sitting still or rotating in place, we get it moving in a period from about -70 degrees to +20.
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