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paul riseborough
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paul riseborough's Discussions

Batch of faulty 3DR Pitot/Static probes - check yours for leaks

Started this discussion. Last reply by Peter Wlodarczyk Jun 23, 2013. 1 Reply

Two out of three of the 3DR pitor/static probes I have purchased have had significant air leaks where the internal tube joins to the machined aluminium end. In the first instance this resulted in a…Continue

Repeated mid-air APM reboot - only happens at one flying site - possible weather radar interference

Started this discussion. Last reply by paul riseborough Apr 21, 2013. 13 Replies

I have three flying sites that I use depending on weather and availability. My primary flying site is located only 800 meters from a weather radar and I have been having repeated in-air reboots when…Continue

Please help - 3DR USB radio will upload firmware but won't enter command mode

Started this discussion. Last reply by Marcin Krawczyk May 31, 2013. 7 Replies

I have a 3DR 915 MHz v1.1 USB interface radio that will not enter command mode using the 3DR radio config tool and does not respond to any commands. The unit was communicating whenfirst received, but…Continue

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paul riseborough's Page

Latest Activity


Developer
paul riseborough replied to Basil's discussion Is it possible to change the code so that quad can fly on inertial nav in case of no gps signal....
"See the work being done to add optical flow measurements to the ardupilot EKF which is based around use of a LIDAR-Lite laser range finder and PX4Flow smart…"
yesterday

Developer
paul riseborough left a comment for liuqiang
"if you are writing code or are testing beta code then please post it here: https://groups.google.com/forum/#!forum/drones-discuss If it is a problem with your setup, then please post it here:…"
Oct 16
liuqiang left a comment for paul riseborough
"I buy one pixhawk board,and fly on fixwing ,I find the output of AZ in EKF2 (z accelerometer bias of IMU1) is too big,it is gradually become larger ,max value about 30,AX an AY max value about 4,I feel attitude angle measurement have a bit…"
Oct 16
liuqiang left a comment for paul riseborough
"I do not run the code on apm2,just build it and find CLASS AP_AHRS_NAVEKF can not define a variables,tell me AP_AHRS_NAVEKF not a name type,why?"
Sep 25
liuqiang left a comment for paul riseborough
"I run AHRS_TEST,and use AP_AHRS_NAVEKF instead of AP_AHRS_DCM,but  compile tell me "AHRS_Test.pde:56:1: error: 'AP_AHRS_NavEKF' does not name a type". Could you tell me where should be set about AOP_AHRS_NavEKF?"
Sep 25

Developer
paul riseborough left a comment for paul riseborough
"You won't get EKF working for APM2 (the microprocessor is too slow). Follow the instructions on https://github.com/priseborough/ardupilot to build for px4."
Sep 24
liuqiang left a comment for paul riseborough
"I define ap_ahrs_navekf ahrs(ins,baro,gps),but the IDE compile tell me ap_ahrs_navekf not a name type and compilication terminated,why?"
Sep 24

Developer
paul riseborough left a comment for liuqiang
"APM2 can not run EKF as it is too slow. You need a PX4 or Pixhawk."
Sep 24
liuqiang left a comment for paul riseborough
"dear sir           I download apm:arduplane, I want to use AHRS_NavEKF on APM2,BUT I found ahrs update in AHRS_NavEKF.cpp not run,only run update in AHRS_DCM,I hope your help,thank you.          "
Sep 24

Developer
paul riseborough commented on Arthur Benemann's blog post DroidPlanner 2 - Official Stable Release
"Arthur, I noticed when testing follow me, it is setting MNT_MODE to 4 so that the camera tilt (or pan if fitted) follows the point which is great. However, when follow me is disabled, MNT_MODE is not set back to the previous value, so that it can…"
Sep 19

Developer
paul riseborough replied to Drone-University.com's discussion Arduplane vs Pixhawk in the group ArduPlane User Group
"Pixhawk is just the hardware. You have the choice of running code from the PX4 project or code from the ArduPilot project on that board. ArduPilot on PixHawk now runs a full inertial nav that gives better flight accuracy. It also provides support…"
Aug 5

Developer
paul riseborough replied to Mapper905's discussion Plane always flies to right of waypoints in the group ArduPlane User Group
"In auto, the plane is flying sideslipped as it it needs bank at 5 degrees to fly straight and is generating a positive yacc value. This is also generating a rolling moment that is causing a couple of degrees offset between demanded and achieved bank…"
Jun 5

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"Falling at 18m/s from 2800m whilst tumbling is not gentle."
Jun 5

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"EKF looks OK. It is however detecting significant inconsistencies between the magnetometer and inertial data in the X and Z axes when the copter rotates in pitch. This indicates a problem with either the offsets or possibly the alignment of the…"
Jun 2

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"Those small differences in flight on switch-over are to be expected. Unfortunately there is no pre-arming logging available, but there is nothing in your logs to indicate you have a problem with the EKF after arming, although both DCM and EKF are…"
Jun 1

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"it was running ArduCopter V3.1.5 (3c57e771)"
Jun 1

Profile Information

Please tell us a bit about your UAV interest
Fixed wing
Hometown:
hoppers crossing

Comment Wall (6 comments)

At 5:07am on September 24, 2014, liuqiang said…

dear sir

          I download apm:arduplane, I want to use AHRS_NavEKF on APM2,BUT I found ahrs update in AHRS_NavEKF.cpp not run,only run update in AHRS_DCM,I hope your help,thank you.
          

At 7:31pm on September 24, 2014, liuqiang said…
I define ap_ahrs_navekf ahrs(ins,baro,gps),but the IDE compile tell me ap_ahrs_navekf not a name type and compilication terminated,why?
At 11:58pm on September 24, 2014,
Developer
paul riseborough
said…

You won't get EKF working for APM2 (the microprocessor is too slow). Follow the instructions on https://github.com/priseborough/ardupilot to build for px4.

At 5:00am on September 25, 2014, liuqiang said…

I run AHRS_TEST,and use AP_AHRS_NAVEKF instead of AP_AHRS_DCM,but  compile tell me "AHRS_Test.pde:56:1: error: 'AP_AHRS_NavEKF' does not name a type". Could you tell me where should be set about AOP_AHRS_NavEKF?

At 6:16pm on September 25, 2014, liuqiang said…
I do not run the code on apm2,just build it and find CLASS AP_AHRS_NAVEKF can not define a variables,tell me AP_AHRS_NAVEKF not a name type,why?
At 12:31am on October 16, 2014, liuqiang said…
I buy one pixhawk board,and fly on fixwing ,I find the output of AZ in EKF2 (z accelerometer bias of IMU1) is too big,it is gradually become larger ,max value about 30,AX an AY max value about 4,I feel attitude angle measurement have a bit problem,how to solve this situation!

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