Fulcrum Air - thermal mapping

Sensors

OUR SENSORS

FulcrumAir has multiple sensors ready to go and mounted on one of our E2500 drones. A FLIR thermal camera paired with a 20MP RGB camera is used for thermal/RGB inspection and mapping. A GeoCue TrueView 410, with Quanergy M8 and 2x 20MP RGB cameras is used for the LiDAR mapping operations. We can mount many different sensors to our E2500 drone as we can manufacture a custom mount and seamlessly integrate the electronics and software.

Thermal & RGB camera combo

FLIR Vue Pro R is a high quality radiometric thermal camera. This is paired with a 24MP RGB camera that can be used to take high quality still images or record video. They are housed together and both images can be accurately geotagged.

Specification Value
Spectral Band 7.5 – 13.5 micro-m
Thermal Imager Uncooled vox Microbolometer
Non-operating Temperature Range -55°C to +95°C
Operational Altitude +40,000 feet
Full Frame Rate 30 Hz (NTSC); 25 Hz (PAL)
Specification Value
Image Optimization for RPAS Yes
Sensor Resolution 640 × 512
Camera Cross-track FOV 19 mm; 32° × 26°
Camera Trigger +/-5°C or 5% of Reading

GeoCue TrueView 410 LiDAR

The LiDAR unit that has been selected for use by FulcrumAir in 2020 is the GeoCue TrueView 410. The 410 is mounted onto the E2500 RPAS and can reach a flight times of 24 minutes at a 3500ft density altitude. Point density can reach ~450pts/m2 with 3 overlapping passes, ~300pts/m2 with 2 overlapping passes and ~150pts/m2 with a single pass. With our mobile van/base station, FulcrumAir can fly up to 650 acres of survey grade LiDAR per day (1 square mile, 2.6 square km).

SpecificationValue
LiDAR ScannerQuanergy M8 Ultra
LiDAR Range – Usable75m
Cross-track Field of View (FOV) – Usable90°
LiDAR Beams/Returns8/3
Pulse Repetition Rate420 kHz
AccuracyBetter than 5 cm RMSE
PrecisionBetter than 5 cm at 1 σ
Dual Cameras (Port, Starboard)±25° cross-track oblique
Specification Value
Camera Sensor 1’’ Mechanical Shutter, 20 MP, RGB
Camera Lens 28 mm ƒ, 2.8 Max F Stop, Fixed Focus
Camera Cross-track FOV 120°, total
Camera Trigger Interval or Distance
Mass 2.25 kg
Operating Time (per battery) ~ 1.5 Hours
Dimensions 12.5’’ x 6.5’’ x 7’’