Sirius Pro: Getting Acquainted

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Getting Acquainted: Key Acronyms

UAS – Unmanned Aircraft System
UAV – Unmanned Aerial Vehicle
AGL – Above Ground Level
LiPo – Lithium Polymer
VLOS – Visual Line of Sight
RC – Remote Control
AOI – Area of Interest
GSD – Ground Sample Distance
GPS – Global Positioning System
GNSS – Global Navigation Satellite System
RTK – Real Time Kinematic
GCP – Ground Control Point
PIC – Pilot in Command
VO – Visual Observer
FA – Flight Assistant
ATC – Air Traffic Control
VFR – Visual Flight Rules
AP – Autopilot
LZ – Landing Zone
ARP – Antenna Reference Point
IMU – Inertial Measurement Unit
WLAN – Wireless Local Area Network

 

Sirius PRO UAS Components

UAV Fuselage – contains the following items:
UAV camera
UAV Engine/Engine Speed Controller/Propellers
GNSS Receiver/Antenna
IMU and Barometer
RC Receiver
SIRIUS Autopilot

Vertical Stabilizer – controls aircraft heading.

Horizontal Stabilizer – controls aircraft altitude.

Left/Right Wings – allows the aircraft to turn.

SIRIUS PRO UAS Components

  • WLAN MAVinci Connector
  • Communicates with the UAV via a 2.4 GHz link. 
  • Streams GNSS RTK Corrections to the UAV. 
  • Connects to the user’s PC via Wi-Fi to provide real-time UAV status information during flight to the user, including:
    • UAV and WLAN Connector battery percentage
    • Current Altitude and ground speed
    • GNSS Status
    • Percentage of Mission Completion
    • RC connection status

 

Sirius PRO UAS Components

  • RC Transmitter
    • Allows the user to place the UAV into any of the 3 flight modes available to the SIRIUS:
      • Automatic - UAV does not react to the RC and flies according to the transmitted flight plan.
      • Autopilot Assisted – Throttle is locked, user controls up/down/left/right. UAV does not react to the RC as sensitively as in full manual mode. 
      • Full Manual – All RC functions are available.
    • Allows the user to turn off the UAV engine (when under 20m AGL) using the Landing Switch. 

SIRIUS PRO UAS Components

  • RC Transmitter
    • Automatic Flight Mode

 

SIRIUS PRO UAS Components

  • RC Transmitter
    • Full Manual Mode

 

SIRIUS PRO UAS Components

  • Camera Payload Options
    • Standard RGB Payload
      • The default camera payload for the SIRIUS UAS incorporates a Fujifilm X-M1 16.0 MP camera. 
      • The lensing used for the Fujifilm X-M1 is an XF-18mm f/2.0 R lens with a fixed focal length.
      • The minimum GSD (pixel size) for the SIRIUS PRO that can be achieved with this payload is 1.6 cm.

 

SIRIUS PRO Communication Summary

  • SIRIUS PRO Internal Base RTK
    • The user’s PC communicates over WLAN to the MAVinci connector in the MAVinci Desktop software. 
    • The MAVinci connector communicates both to the user’s PC over WLAN and to the UAV via a 2.4 GHz Link.
    • The GNSS Antenna is connected to the MAVinci Connector to provide the RTK Base position. The MAVinci connector streams RTK corrections to the UAV via the 2.4 GHz Link.
    • The RC controller communicates to the UAV via a 2.4 GHz link independent of the MAVinci connector.

 

Landing Modes

  • There are 3x different landing methods available to the SIRIUS PRO UAS:
    • Assisted glide landing
      • Default landing method for the SIRIUS UAS.
      • During flight operations, the PIC uses the RC controller to land the UAV after it completes its mission. 
      • In assisted glide landing, the aircraft descends gradually but at a higher velocity.
      • Requires a longer gliding path once the aircraft engine is switched off during landing. 
  • There are 3x different landing methods available to the SIRIUS PRO UAS:
    • Spoileron Landing
      • During flight operations, the PIC uses the RC controller to land the UAV after it completes its mission. 
      • Once the aircraft is below 20m AGL, the spoilerons are enabled, slowing the aircraft.
      • During spoileron landing, the aircraft descends steeply but at a slower velocity.
      • Requires a shorter gliding path once the aircraft engine is switched off during landing. 
  • There are 3x different landing methods available to the SIRIUS PRO UAS:
    • Spot Landing
      • Automatic Landing method to a specified landing spot.
      • The approach to the landing spot is determined automatically by MAVinci Desktop software.
      • During spot landing, the aircraft descends steeply but at a slower velocity.
      • Requires RTK GNSS functionality to operate. 

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