About

Gender

Male


Location

Boulder, CO


About Me:

I am interesting in formation flying and power optimization for multiple plane UAVS.


Please tell us a bit about your UAV interest

Planes flying in formation and minimizing power consumption.


Hometown:

Fremont


Activity Feed

Patrick Andresen replied to Jacob Densmore's discussion Flyzone Calypso as platform
"How/Where did you put the airspeed sensor?
nicolas grunbaum said:
As you can see, the pixhawk takes half the place on the cockpit, esc goes up front with the x8r receiver, 915 telemetry radio goes just next to the servos (i made a hole to pass the…"
Sep 19, 2016
Patrick Andresen replied to Jacob Densmore's discussion Flyzone Calypso as platform
"How/where did yall mount the airspeed sensor? Planning out my calypso build with Pixhawk and raspberry PI."
Sep 19, 2016
Patrick Andresen commented on Chris Anderson's blog post Pixhawk-powered solar plane sets new endurance record: 81 hours!
"So there isn't a prime tuning strategy for power optimization? Did they just find their optimal airspeed (cruise speed) and hold it?"
Sep 15, 2016
Patrick Andresen commented on Chris Anderson's blog post Pixhawk-powered solar plane sets new endurance record: 81 hours!
"How did they manage their power consumption so well with the Pixhawk? Any chance we could look at the power optimization code used?"
Sep 15, 2016
Patrick Andresen commented on Mike Clement's blog post From Zero to Fifty Planes in Twenty-Seven Minutes
"Thanks Mike! Also great job on the demonstation, I'm working on a multiplane fixed-wing demo as well. I previously was thinking about this wifi adapter: https://www.amazon.com/gp/product/B0035GWTKK/ . How does this compare with the device you used? …"
Sep 15, 2016
Patrick Andresen commented on Mike Clement's blog post From Zero to Fifty Planes in Twenty-Seven Minutes
"Did you guys have to use a wifi range extender or antenna? How did you use your adhoc network because from my knowledge, built in wifi only has about 10m range. "
Sep 14, 2016
Patrick Andresen replied to Anton's discussion Computer don't see the Pixhawk
"My Pixhawk has the same problem as above and I can't find any solutions. Please help!"
Sep 12, 2016
Patrick Andresen replied to turdsurfer's discussion Pixhawk won't boot with Power Module AND 5V powering the servo output rail.
"Mine was working fine when all of a sudden it stopped booting and is making the crickets sound. I did try to plug it in with a 5V power instead of the USB into my computer
James said:
At least you have a situation that is working and not working..…"
Sep 12, 2016
Patrick Andresen replied to Tim Mulder's discussion Cruise Speed
"TRIM_ARSPD_CM plane paramter"
Aug 22, 2016
Patrick Andresen replied to moglos's discussion Cruise airspeed and actual airspeed
"It seems like you guys know airspeed control rather well. My goal is to hold a constant airspeed and currently it fluctuates about 0.2 m/s for every 10m/s of airspeed. How can I get arduplane to more accurately and concisely hold an airspeed?"
Aug 22, 2016
Patrick Andresen posted a discussion
The plane in Auto or Guided mode on a long straight mission is set to have a target airspeed using TRIM_ARSPD_CM. When this is set to 1250, the airspeed fluctuates ~20 cm/s. I want to get this deviation down to <10 cm/s. How can I go about holding a…
Aug 22, 2016
Patrick Andresen posted a discussion
So far I have studied all the plane parameters relevant to power consumption. Major ones that I assume affect power consumption are throttle, roll, and pitch limits and their corresponding rates. Also, it seems like all the TECS parameters can be ap…
Aug 11, 2016
Patrick Andresen posted a discussion
Whats the best way to on the fly control speed or velocity? I've been in guided mode and using the simple_goto to follow a leader but it simply isn't updating it fast enough or correctly. If I am constantly receiving the leader's location and veloci…
Aug 5, 2016
Patrick Andresen posted a discussion
I have two instances of MAVProxy SITL set by calling sim_vehicle.sh -I0 --out 127.0.0.1:14552 and sim_vehicle.sh -I1 --out 127.0.0.1:14553. I'm trying to connect to each of these instances with two python scripts, calling python formation.py --conne…
Jul 27, 2016