DVE flight test results of a sensor enhanced 3D conformal pilot support system

Münsterer, Thomas; Völschow, Philipp; Singer, Bernhard; Strobel, Michael; Kramper, Patrick

doi:10.1117/12.2180634

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…Therefor, one of the main benefits of a visual augmentation [28] is to reduce pilots' workload and increase SA in all phases of flight. Münsterer et al [29] analyses together with helicopter pilots have shown that the preferred HMD display information depends on the phase of flight, the current environmental conditions and the visibility of the moving landing zone, the ship deck. Zimmermann et al [30] investigated in HMD visual augmentation of a detected landing zone in flight using the ACT/FHS of the Deutsches Zentrum für Luft-und Raumfahrt e.V.…”

Section: Literature Reviewmentioning

confidence: 99%

Piloted Simulation of Helicopter Shipboard Recovery with Visual and Control Augmentation

Mehling

Halbe

Gasparac

et al. 2021

AIAA Scitech 2021 Forum

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Shipboard launch and recovery of helicopters continue to pose operational challenges even for experienced pilots. The factors affecting pilot workload include unsteady ship motion, the influence of ship air wakes on helicopters, insufficient visual cues, and adverse weather conditions. The goal of the current research is to investigate novel visual and control augmentation techniques and evaluate their impact on pilot workload and handling qualities for shipboard recovery operations. This paper first outlines a helicopter-ship dynamic interface model developed and integrated into our existing rotorcraft simulation environment (ROSIE). It then describes a visual augmentation concept using a see-through helmet-mounted display (HMD) system for enhancing the pilot's visual cueing environment during the shipboard approach and landing tasks. Next, it describes the synthesis of robust nonlinear control laws for achieving advanced helicopter response types with predicted Level 1 handling qualities. Lastly, the paper reports the results of simulation tests of maritime mission task elements by four experimental test pilots with different levels of augmentation and under different environmental conditions. Results on navigation performance, workload indices, and handling quality ratings indicate a decreased workload and improved handling qualities to almost Level 1 with the assistance of the visual and control augmentation system. Moreover, all piltos stated a higher situational awareness while operating in degraded visual environment conditions using visual and control augmentation.

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Section: Literature Reviewmentioning

confidence: 99%

Piloted Simulation of Helicopter Shipboard Recovery with Visual and Control Augmentation

Mehling

Halbe

Gasparac

et al. 2021

AIAA Scitech 2021 Forum

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show abstract

“…Recent research in DVE assistance in Europe and in the US presented in Refs. [8] and [9] utilizes forward-looking LIDAR devices combined with "see-and-remember" systems during brown-out conditions. Guidance considering obstacles in this critical phase of flight was explicitly mentioned by pilots in the latter publication as a desired improvement.…”

Section: Single Angle Double Anglementioning

confidence: 99%

Flight test results of helicopter approaches with trajectory guidance based on in-flight acquired LIDAR data

Zimmermann

2016

SPIE Proceedings

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This paper presents flight test results for online calculated approach trajectories using DLR's manned research helicopter. This highly modified EC135 is equipped with a commercial forward-looking Light Detection and Ranging (LIDAR) sensor with a range of 1 km. During an approach to an unmapped landing site, geo-referenced LIDAR samples are acquired and combined with a priori information. The resulting representation of the environment is used for the generation of trajectories which are collision free, technically feasible and acceptable for pilots. Once new samples are collected by the LIDAR sensor, the environment map is updated in real time and the trajectory is changed based on typical approach procedures if necessary. Due to experimental aspects, a manual trajectory following was used by providing the pilot with a "Tunnel-In-The-Sky" head down display including visual cues for spatial and speed guidance during the approach.

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“…This concept is expected to allow a seamless transition from visual references to symbol representation. Several slightly different research prototype displays are presently under investigation [3] [5][8] [10]. All of them present some kind of synthetic helipad representation.…”

Section: Introductionmentioning

confidence: 99%

Amplifying the helicopter drift in a conformal HMD

et al. 2016

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Helicopter operations require a well-controlled and minimal lateral drift shortly before ground contact. Any lateral speed exceeding this small threshold can cause a dangerous momentum around the roll axis, which may cause a total roll over of the helicopter. As long as pilots can observe visual cues from the ground, they are able to easily control the helicopter drift. But whenever natural vision is reduced or even obscured, e.g. due to night, fog, or dust, this controllability diminishes. Therefore helicopter operators could benefit from some type of "drift indication" that mitigates the influence of a degraded visual environment.Generally humans derive ego motion by the perceived environmental object flow. The visual cues perceived are located close to the helicopter, therefore even small movements can be recognized. This fact was used to investigate a modified drift indication. To enhance the perception of ego motion in a conformal HMD symbol set the measured movement was used to generate a pattern motion in the forward field of view close or on the landing pad.The paper will discuss the method of amplified ego motion drift indication. Aspects concerning impact factors like visualization type, location, gain and more will be addressed. Further conclusions from previous studies, a high fidelity experiment and a part task experiment, will be provided. A part task study will be presented that compared different amplified drift indications against a predictor. 24 participants, 15 holding a fixed wing license and 4 helicopter pilots, had to perform a dual task on a virtual reality headset. A simplified control model was used to steer a "helicopter" down to a landing pad while acknowledging randomly placed characters.

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DVE flight test results of a sensor enhanced 3D conformal pilot support system

Cited by 6 publications

References 6 publications

Piloted Simulation of Helicopter Shipboard Recovery with Visual and Control Augmentation

Piloted Simulation of Helicopter Shipboard Recovery with Visual and Control Augmentation

Flight test results of helicopter approaches with trajectory guidance based on in-flight acquired LIDAR data

Amplifying the helicopter drift in a conformal HMD

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