Ted P
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  • Hermosa Beach, CA
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Ted P's Discussions

SITL on Linux just stops after about 20 minutes

Started this discussion. Last reply by Ted P Aug 29, 2016. 2 Replies

As the subject line says -- I'm running ArduPlane SITL (Rascal) on a Linux box. It works great -- but after 20 minutes or so, it just stops -- I get "no link" in MavProxy. I am trying to find any…Continue

Tags: Rascal, ArduPlane, SITL

Send commands to multiple MavProxy "links"

Started May 27, 2015 0 Replies

I am trying to get a shadow copy of all commands going from Mission Planner to my vehicle via MavProxy. To do so, I added a second link (using "link add") to MavProxy which I am routing to my monitor…Continue

Tags: arduplane, links, mavproxy

Trying to Understand Mavlink Command Generated by MP

Started this discussion. Last reply by Ted P May 14, 2015. 1 Reply

Hello All,I am trying to understand the command sent by MP when doing a "go to" from map. I am connected to SITL via MAVPROXY, and am capturing the command packets via Wireshark.When executing the…Continue

Tags: MISSION_ITEM, mavlink, mission planner

MAVLINK EXTRA_CRCs invalid

Started May 14, 2015 0 Replies

Hello,I am writing a MAVLINK parser for a specific application, and am testing it with SITL, For the most part it works, but I am noticing some CRC mismatches. They seem to be related to Message IDs…Continue

Tags: checksum, crc, mavlink

 

Ted P's Page

Latest Activity

Ted P replied to Ted P's discussion SITL on Linux just stops after about 20 minutes
"I looked at the logfiles (and attaching for reference). The SITL logfile is consistent with the Mission Planner logfile -- output just seems to stop at a point. The plane doesn't crash or anything like that. I was wondering if something is…"
Aug 29, 2016

Developer
Andrew Tridgell replied to Ted P's discussion SITL on Linux just stops after about 20 minutes
"the DF log file should be in the logs/ subdirectory of the directory you run SITL from."
Aug 29, 2016
Ted P posted a discussion

SITL on Linux just stops after about 20 minutes

As the subject line says -- I'm running ArduPlane SITL (Rascal) on a Linux box. It works great -- but after 20 minutes or so, it just stops -- I get "no link" in MavProxy. I am trying to find any logfile to see if I can deduce what might be happening, but have not been able to do so. Is this something that is happening to my setup? I'm looking through the models, and wondering if the virtual plane is running out of fuel or something -- but that's unlikely since I'm usually just left somewhere…See More
Aug 29, 2016
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Jeff, That looks to be about standard -- I'm getting similar results. Since my drone is far relative to the tracker, the GPS noise isn't too big of a deal, but it can be a problem if your vehicle is close to the tracker (worst case will…"
Oct 29, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Hi Linus, I'm glad it worked for you. I've been meaning to test the tracker out with a virtual copter since it's possible to have the vehicle "fix" the location. I am trying to troubleshoot possible offsets in the tracker…"
Oct 15, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"It's not clear if you are using a virtual tracker or not, but for my setup I am successfully using a SITL Arduplane with a REAL tracker. Depending on your tracker configuration there might be other parameters to tweak on the TRACKER. I also…"
Oct 13, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Here's the changed file. You'll have to recompile the software according to these instructions: http://dev.ardupilot.com/wiki/building-the-code-onlinux/ Also, I'm not sure I fully grok your setup, but the tracker needs MAVLINK GPS…"
Oct 11, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Paul, I've modified v0.5 of the tracker to do exactly what you want, since we need to point to a specific GPS coordinate. All I did was to disable the auto-scan mode on loss of signal, and I just feed the tracker GPS Mavlink messages to get it…"
Oct 11, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Is anyone running the tracker via a small computer like BeagleBone or RPi? I'm trying to get MAVProxy working on my Beaglebone, and have done so successfully, however the tracker module will not show up when doing a "module…"
Aug 28, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Seems to make sense, the closer your vehicle is to the tracker, the higher the gains would have to be on the tracker to keep up. A 10 yard motion close in is a much higher angular motion than 10 yards out. Increasing the gains can then add…"
Jul 10, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Hi Jakub, It took a while to get a better grip on MavProxy, but the key is to differentiate between what is defined as a link and what is defined as an output. They are denoted by the direction of the arrows on my block diagram. The arrow points…"
Jul 10, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"A demo of the tracker I've been working on for a long range line-of-sight link. https://youtu.be/RWhsQ6oWfQo"
Jul 9, 2015
Ted P posted a discussion

Send commands to multiple MavProxy "links"

I am trying to get a shadow copy of all commands going from Mission Planner to my vehicle via MavProxy. To do so, I added a second link (using "link add") to MavProxy which I am routing to my monitor software. However, it seems that MavProxy will only forward the commands coming from an output to the 1st active link. Is there a way to enable forwarding to multiple links?Thanks-TedSee More
May 27, 2015
Ted P replied to Ted P's discussion Trying to Understand Mavlink Command Generated by MP
"To document in case someone else comes across this in the future: the ordering of the parameter on the web documentation (http://mavlink.org/messages/common#MISSION_ITEM) IS NOT the same as the definition of the parameters in…"
May 14, 2015
Ted P posted discussions
May 14, 2015
Ted P replied to Randy's discussion figuring out the Antenna Tracker
"Ed -- It's a pretty major kludge what I did, and also I don't have the time to learn GIT in order to upload stuff. Basically, there's a "location_valid" flag that gets set to false if GPS information IS NOT received within a…"
May 13, 2015

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