CCNS

The CCNS ( Computer Controlled Navigation System, 4th generation) is a guidance, positioning and management system for aerial survey flight missions. The basic system consists of the Central Computer Unit (CCU), the 5'' TFT Command and Display Unit (CDU), and necessary cabling and mounting. Optional equipment completes the system to fulfill specific requirements. The system is universally usable and can operate and integrate all Wild/Leica, Zeiss resp. Z/I Imaging aerial camera systems. It provides a complete and comprehensive solution for mission planning and documentation ( IGIplan), aircraft guidance and sensor management during missions.
CCNS controls the camera and other sensors, including crab/drift setting(s), forward overlap, V/H computation and provides data for data annotation on film; the co-ordinates may be WGS 84 or the countries X/Y - co-ordinates (optional).

The CCNS brings the advantages of a glass cockpit and a fully automated flight control system to aerial surveying and reconnaissance.
All operations are activated via one knob and four buttons. The EFIS type display, which is operated like an aircraft instrument, is divided into guidance and system/sensor management information (right side of the display). The pilot just has to "follow the needle". Outputs, with selectable sensitivity for HSI, VDI and CDI instruments, are provided.

Image showing from left to right: Central Computer Unit (CCU), L1/L2 GPS antenna, external GPS receiver Z-xtreme and Command & Display Unit (CDU).

The system can furnish information for up to two displays, which are operated in parallel.
The CCNS requires positioning and speed information from a GPS receiver and optional directional information from the aircraft's directional gyro (DG). The Standard CCNS4 can be operated with GPS receivers that already may be installed in the aircraft by using the receiver specific data format or the NMEA 0183 data format.
The CCNS is equiped with an integrated 8-channel L1 GPS receiver. A 12-channel L1 GPS receiver is optional.

IGI offers an integrated 12-channel L1/L2 GPS receiver mounted on top of the CCNS. All GPS receivers are prepared for differential GPS (DGPS) operations according to RTCM-104 format. These DGPS corrections can be provided by e.g. the Fugro OmniSTAR.
DG information is used by the CCNS for a stable graphical display and for computing drift/crab. Corrections for local variations and aircraft's deviations can be used.

The CCNS is able to control up to two cameras. The actual flight data, including the aircraft's position in WGS 84 co-ordinates or a local grid system (optional) are computed and can be provided for data annotation on film. Waypoint/photo data, flight information, and GPS positions are stored on the CCNS Mission Card for post flight processing, analysis, and plotting of the flight index or the complete mission.

 

The CCNS system has no mechanical (moving) parts, no hard or floppy disk to crash or wear out from dust, humidity, acceleration or vibration. More than 150 installations - worldwide - show that the CCNS is a very reliable system. Using the CCNS no specialized photo pilot or photo navigator is required.