8 Replies Latest reply on Aug 21, 2018 9:46 AM by DesmondZ

    Intel Aero RTF - CRITICAL NAVIGATION FAILURE

    DesmondZ

      Hi!

       

      I was testing Intel Aero RTF with PX4 in POSITION mode and for the most of the time there will be some aggressive behaviors. When I check the logs, the FCU will send back an error. The following is the output of MAVROS:

       

      [ WARN] [1532985278.000720962]: TM : RTT too high for timesync: 46.27 ms.

      [ERROR] [1532985278.143875280]: FCU: CRITICAL NAVIGATION FAILURE - CHECK SENSOR CALIBR

      [ERROR] [1532985278.197775320]: FCU: Failsafe enabled: no local position

      [ INFO] [1532985278.245378081]: FCU: Failsafe mode enabled

      [ WARN] [1532985278.597816504]: TM : RTT too high for timesync: 42.97 ms.

       

      I also write a python script to send waypoints missions through MAVROS. The RTF can take off smoothly but cannot reach the correct waypoint. I got the following error:

       

      [ INFO] [1532985449.482349651]: WP: mission cleared

      [ INFO] [1532985449.541545251]: FCU: Mission finished, landed.

      [ INFO] [1532985449.543720535]: WP: mission sended

      [ INFO] [1532985449.625598097]: FCU: Executing Mission

      [ INFO] [1532985449.680501045]: FCU: Takeoff to 2.0 meters above home.

      [ INFO] [1532985449.728870793]: FCU: Takeoff detected

      [ WARN] [1532985450.024027304]: TM : RTT too high for timesync: 43.39 ms.

      [ WARN] [1532985450.635279594]: TM : RTT too high for timesync: 54.29 ms.

      [ WARN] [1532985452.126519588]: TM : RTT too high for timesync: 45.43 ms.

      [ WARN] [1532985453.226403318]: TM : RTT too high for timesync: 45.00 ms.

      [ WARN] [1532985454.420344494]: TM : RTT too high for timesync: 39.70 ms.

      [ WARN] [1532985455.127577130]: TM : RTT too high for timesync: 46.35 ms.

      [ERROR] [1532985455.339997338]: FCU: CRITICAL NAVIGATION FAILURE - CHECK SENSOR CALIBR

      [ERROR] [1532985455.424013207]: FCU: Failsafe enabled: no global position

      [ INFO] [1532985455.439297617]: FCU: Failsafe mode enabled

      [ WARN] [1532985455.722783648]: TM : RTT too high for timesync: 41.41 ms.

       

       

      i wonder why this critical navigation failure error occurs. This error makes the RTF couldn't perform even the basic tasks. Is this a PX4 issue or a hardware issue with Intel Aero RTF? It seems the sensors are not correctly calibrated. I follow the instructions on QGroundControl to calibrate the senors. But the error still pops out. BTW: I check the GPS information from QGroundControl before each flight. It seems normal and 3D Lock is enabled.

       

      BIOS_VERSION =Aero-01.00.13

      OS_VERSION = Ubuntu 16.04.4 LTS"

      AIRMAP_VERSION = unknown

      FPGA_VERSION = 0xc2

      AeroFC firmware version = 1.8.0

       

      Let me know if you need any further information. Thank you in advance!

       

      Desmond