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Proceedings Paper

Single-computer HWIL simulation facility for real-time vision systems
Author(s): Simon Fuerst; Stefan Werner; Ernst Dieter Dickmanns
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Paper Abstract

UBM is working on autonomous vision systems for aircraft for more than one and a half decades by now. The systems developed use standard on-board sensors and two additional monochrome cameras for state estimation of the aircraft. A common task is to detect and track a runway for an autonomous landing approach. The cameras have different focal lengths and are mounted on a special pan and tilt camera platform. As the platform is equipped with two resolvers and two gyros it can be stabilized inertially and the system has the ability to actively focus on the objects of highest interest. For verification and testing, UBM has a special HWIL simulation facility for real-time vision systems. Central part of this simulation facility is a three axis motion simulator (DBS). It is used to realize the computed orientation in the rotational degrees of freedom of the aircraft. The two-axis camera platform with its two CCD-cameras is mounted on the inner frame of the DBS and is pointing at the cylindrical projection screen with a synthetic view displayed on it. As the performance of visual perception systems has increased significantly in recent years, a new, more powerful synthetic vision system was required. A single Onyx2 machine replaced all the former simulation computers. This computer is powerful enough to simulate the aircraft, to generate a high-resolution synthetic view, to control the DBS and to communicate with the image processing computers. Further improvements are the significantly reduced delay times for closed loop simulations and the elimination of communication overhead.

Paper Details

Date Published: 13 July 1998
PDF: 9 pages
Proc. SPIE 3368, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing III, (13 July 1998); doi: 10.1117/12.316382
Show Author Affiliations
Simon Fuerst, Univ. der Bundeswehr Muenchen (Germany)
Stefan Werner, Univ. der Bundeswehr Muenchen (Germany)
Ernst Dieter Dickmanns, Univ. der Bundeswehr Muenchen (Germany)

Published in SPIE Proceedings Vol. 3368:
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing III
Robert Lee Murrer Jr., Editor(s)

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