September 2013 Blog Posts (6)

Ecosynth Flying By the Numbers

We have flown the equivalent of once a week for an entire year over 3 250m x 250m sample sites with the same two copters: an investment of around $5000 in copter and flying gear. 

I ran some quick numbers from our flight logs and came up with a few fun statistics.  We have logged at least 230 mission days,…

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Added by Jonathan Dandois on September 29, 2013 at 12:24pm — No Comments

Taking Stephen's concept hexa into full autopilot mode

After dealing with the motor issues (0.5-1 degree off alignment on 3 motors), the hexa is now performing really well.

Here you can first see a little stabilize test. Excellent performance, quick compensation. There was 'some' wind here, about 2-3Bft. 

Then the first fully autopilot flight @ 60m high. Amazingly, the hexa just goes straight up as if there's no wind…

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Added by Gerard Toonstra on September 27, 2013 at 6:00pm — 1 Comment

Timing Photoscan with the Python API

I recently starting playing with the Photoscan Python API and adapted a nice little script from the forums for running a job in Photoscan, saving and exporting points and all the while recording time stamps for the…

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Added by Jonathan Dandois on September 26, 2013 at 5:40pm — 1 Comment

Ecosynth Featured by NSF: A Social Network for 3-D Ecology

Ecosynth popped up on the NSF twitter feed this morning with a link to a short feature on the project at…

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Added by Jonathan Dandois on September 21, 2013 at 9:42am — No Comments

Stress test of Stephen's long endurance hexa design (update)

Today I have taken the hexa on a first waypoint mission:

  • 16 waypoints
  • 5m elevation
  • heavy wind (see video)
  • no crash

Setup using droidplanner:

 

Flight path visualized using Google Earth:…

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Added by Thorsten on September 16, 2013 at 6:00am — 2 Comments

Most common species of tree on UMBC campus

This week I've been working on cataloging and checking the data for the trees collected on campus. I used the data to figure out the most common type of tree in the knoll section of the campus. The most common type was Acer Rubrum or the Red Maple. A close second was the Prunus Serotina or the black cherry tree. This isn't surprising as the most common type of deciduous tree in North America is the red maple. The…

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Added by Andrea Farace on September 6, 2013 at 7:30pm — No Comments

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