Sirius Pro: UAS Preparation - External Base RTK Setup

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UAS Preparation - External Base RTK Setup

  • Place both the GNSS Receiver and UAV under open sky GNSS conditions.
  • Open MAVinci Desktop. Create/Open a session.
  • Power on the GNSS receiver.
  • Power on and Connect to the WLAN Connector and UAV in MAVinci Desktop.
  • Allow both the GNSS Receiver and UAV to track GNSS satellites for approximately 10-15 minutes.
  • Connect the external GNSS receiver to the user’s PC via a Bluetooth or Serial Cable connection.
    • Note the COM Port being used for serial connection.
  • Download and Install the latest version of TRU from Topcon TotalCare for the PC.
  • Open the Topcon Receiver Utility (TRU) software.
  • Select Device – Application Mode – Receiver Managing. Select Device – Connect.
  • On the Connection Parameters screen, select the following:
    • If using a serial cable connection, select the configuration button, and select the correct COM Port the receiver is connected to on the PC.
    • If using a Bluetooth connection, select the configuration button, and select a previously used receiver or add a new receiver to connect to via Bluetooth.
    • Note that you cannot use the same receiver port being connected to in order to configure the receiver to output RTK corrections on that same port.
  • Once finished, select Connect to connect to the receiver via serial cable or Bluetooth.
  • Once connected to the receiver, select Receiver Settings – Tracking and Positioning.
  • Select the Base tab.
  • Select the antenna type from the pull down menu.
  • Select the Base Station Coordinates as Antenna Reference Point.
  • Select the configuration button, and select Get from the receiver.
    • Average the receiver position for 60s and click Ok.
  • Once the antenna type and position have been configured, click Ok.
  • Select Ports.
  • Double click on the receiver serial port that will be used to stream RTK corrections.
  • Select the Serial tab of the serial port settings screen. Confirm the following settings:
    • Baud Rate – 115200
    • Byte Size – 8
    • Stop Bits – 1
    • Parity – None
  • Select the General tab of the serial port settings screen.
  • Select the Output Mode as RTK RTCM 3.1 (3.x) from the pull down menu.
  • Select the Period (s) to output RTK corrections.
    • For serial connections, enter 1.0 seconds.
    • For Bluetooth connections, enter 0.5 seconds.
  • Select the Messages button.
  • Confirm the following RTCM 3.1 messages are active for MAVinci Desktop:
    • 1004, 1005, 1006, 1007, 1008, 1012
  • To add new messages to output, right click on the Messages window and select add new messages.
  • Expand the rtcm3 list. Double click on all the required message types. Once finished, click Ok.
  • Confirm all the required messages are now active on the receiver. Once finished click Ok.
  • Click Ok on the serial port settings screen to save the settings to the receiver.
  • Exit the receiver ports screen.
  • Select Device – Disconnect.
  • Close TRU.
  • In the MAVinci Desktop session, select the External RTCM Connections option.
  • Under the RTCM source connection section, select the following:
    • If using a serial connection, select the RS232 tab.
    • If using a Bluetooth connection, select the Bluetooth tab.
  • If using a serial connection, confirm the port settings and select the COM Port the receiver is connected to on the user’s PC.
  • If using a Bluetooth connection, using the refresh button, search for the Bluetooth device name of the GNSS receiver.
    • The device name may display as the Bluetooth address of the receiver and not the serial number.
  • Regardless of the connection method, select Connect to being streaming RTK corrections.
  • Confirm the following:
    • Receiver status shows as connected.
    • Number of bytes skipped is not counting upwards.
    • Confirm all the required RTCM messages are being received and display as green.
  • Return to the Map View.
  • Confirm in the UAS status information that the UAV reports an RTK Fixed solution.