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Visual Positioning
Camera-based navigation and landing guidance
Sustaining navigation in GNSS-denied environments
VPS allows uninterupted, reliable and reduntant navigation even when GNSS signal is lost, jammed or spoofed. It is designed to integrate with existing INS/GNSS-based navigators but is unsimilar to them. Based on visual localisation by recognizing landmarks
Precision landing on runways and helipads
The system reports to a flight control equipment or to a human pilot the data on position, altitude, heading, ground and vertical speed, accelerations (and corresponding uncertainties) and gives landing guidance
Comparison with GNSS
VPS GNSS
Works on fixed, pre-surveyed routes over suburban or urban landscapes, roads, mountains and other feature-rich (heterogeneous) land Can work globally if at least 4 satellites are visible
Requires no infrastructure Relies on satellite communication and its ground infrastructure
Sufficient accuracy near the ground for manoeuvring and landing Insufficient accuracy near ground for landing, in multipath and obstructed skies
Referenced directly to ground level Calculated altitude relative to Earth Surface Model
Impossible to sabotage Prone to spoofing / jamming
The go-to solution GPS is not sufficient by itself due to:
Accuracy issues:
not high enough for precision landings (without ground based infrastructure)
Reliability issues:
dropouts, spoofing, switch-off, etc.

=> Regulators demand additional non-GPS based positioning solutions
Key advantages
• On-board vision-based navigation system, no GNSS (GPS) or ground infrastructure required in-flight

• Enables precision landings for VTOL/rotorcraft and fixedwing aircraft on runways and helipads or equivalent

• Dissimilar navigator to existing INS/GNSS/ILS enabling safe autonomous operations

• Visual-inertial algorithms provide accurate and reliable output

• ITAR-free
Operating Conditions
• On fixed routes after an initial pre-surveying process

• Up to a ground speed of 250 knots, depending on AGL

• Daylight Visual Meteorological Conditions (VMC) with a clear unobstructed view of the ground

• Light rain can be tolerated
Key System Characteristics
Supply Voltage 28 VDC ± 10 %
Power Consumption 80 W (typical)
90 W (peak)
Weight Compute platform — 3 kg
Camera & lens assembly — 0.3 kg (x 2)
excluding cables
Volume/Size Compute platform — 4 liters (200x200x100 mm)
Camera & lens assembly — 0.375 liters
(150x50x50 mm)
Operating Altitude and Temperature Range Up to 762 meters (2,500 feet) AGL
To DO-160G, category B4:
  • 25,000 ft (7,620 m) MSL
  • -15°C to + 55°C Operating
  • -20°C to + 70°C Short Term
  • -25°C to + 85°C Ground Survival
Interface Protocol ARINC 429, 825
Components
• two avionics-grade cameras with integrated MEMS IMUs

• a computing platform running Daedalean's algorithms onboard in realtime
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