T. Münsterer, P. Kielhorn, T. Grasse

In arid or snow covered regions starting and landing a helicopter may become a risky task because the outside view during these critical flight phases may become obscured by blowing dust or snow. These degraded vision effects are called brownout or whiteout, and may cause a complete loss of outside reference within a split second. Here an advisory system called DeViLa (degraded vision landing aid) is introduced that is designed to support the pilot even in these critical moments but thanks to the active obstacle warning capability also during flight. The modular design of the system is intended for an incremental development and implementation of this system. The first step aims at an immediate display of highly precise height above ground and drift velocity information. The second step introduces a dust penetrating moving obstacle detection system, the so called electronic bumper. This electronic bumper warns of objects intruding the cleared landing space, such as cars, trucks, other aircrafts or even persons. The third step enhances the system by providing an obstacle warning function in flight with the motion animated display of a synthetic view of the landing area and the surroundings during landing. The data is based on up-to-date ladar data combined with data base information. The sensors used for the phase 1 are a high precision Inertial Measurement Unit (IMU) especially adapted for precision drift measurement and one or multiple laser altimeters optimized for usage in dust or snow environment. The information is displayed to the pilots via a Multifunction Display (MFD) and via Helmet Mounted System / Display (HMS/D).

35th European Rotorcraft Forum 2009,

Conference Paper

englisch

21,0 x 29,7 cm, 5 Seiten

DGLR-Bericht, 2009, 2009-03, 35th European Rotorcraft Forum 2009 - Conference Proceedings; S.1-5; 2009; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

avionik, rotorcrafts

Bestellbar

2009