AIRBUS A3XX (now A380) Twin deck, 555 passengers
AIRBUS: Automatic Wingbox Assembly project (AWBA)
Instrumentation and underlying maths
Leica theodolites and total stations
Triangulation and intersection
Early applications of triangulation/intersection
Triangulation also with cameras - VSTARS/BMW
Polar 3D measurement with a single Total Station
Fixed axis interferometer - in use at NPL
3D tracking interferometer - The Leica laser tracker
3D location by polar coordinates
Polar measurement by tracker - Daimler Crysler Aero
The need for tracker calibration and modelling
Simplified example: “Birdbath” distance via cosine rule
Tracker components: 3 tilt parameters
Tracker components: 4 offset parameters
Tracker angle encoders: 3 offset parameters
Reflector location is not feature point – may need 6DOF
Leica’s 6DOF concept – probe orientation from image
Leica’s T-Probe - real-time target tracking in 6DOF
Resection orients camera to object (or vice versa)
Solving the space resection automatically
Parallel projection approximation - in brief