First results of LiDAR-aided helicopter approaches during NATO DVE-mitigation trials

Zimmermann, Michael; Gestwa, Martin; König, Christian; Wolfram, Jens; Klasen, Stephanus; Lederle, Andreas

doi:10.1007/s13272-018-0354-8

Cited by 9 publications

(8 citation statements)

References 4 publications

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“…However, it was also anticipated that more information would lead to an increase in cognitive workload, similar to results reported by Hopman (2016), Strayer, Turrill, et al (2015) and Strayer et al (2019). We first hypothesized that increased symbology would increase flight performance and landing accuracy, similar to results from Zimmermann et al (2019). We also hypothesized that DRT response times would increase with lower visual acuity (i.e.…”

Section: Introductionmentioning

confidence: 87%

“…) inZimmermann et al (2019) and Figures 8-11 in Münsterer et al. (2014), provide good examples of the 3D symbology condition.…”

mentioning

confidence: 89%

“…Whilst these measures are effective in assessing their related constructs, they may not be reliable indicators when assessing workload induced by technological factors. Previous work by Zimmermann et al (2019) also aimed to assess the usefulness of additional HUD information, in the helicopter setting, with findings indicating that pilots flew more effectively under conditions of more information. Further, in the military setting where this technology is most used, landings are far more frequent and difficult, meaning that the HUD information allows a safer environment in critical scenarios.…”

Section: Introductionmentioning

confidence: 99%

“…We compared industry-standard HUD symbology to new, more information-rich symbology, as well as a control condition with no symbology. For a full overview of the technology input to the HUD, see Zimmermann et al (2019). Despite the limited number of participants, we placed high importance on the ecological validity of the task, designing a flight path that emphasized a realistic scenario and testing pilots who were highly familiar with military helicopter environments.…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Increased Visual Information on Cognitive Workload in a Helicopter Simulator

et al. 2020

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Objective To test the effects of enhanced display information (“symbology”) on cognitive workload in a simulated helicopter environment, using the detection response task (DRT). Background Workload in highly demanding environments can be influenced by the amount of information given to the operator and consequently it is important to limit potential overload. Methods Participants (highly trained military pilots) completed simulated helicopter flights, which varied in visual conditions and the amount of information given. During these flights, participants also completed a DRT as a measure of cognitive workload. Results With more visual information available, pilots’ landing accuracy was improved across environmental conditions. The DRT is sensitive to changes in cognitive workload, with workload differences shown between environmental conditions. Increasing symbology appeared to have a minor effect on workload, with an interaction effect of symbology and environmental condition showing that symbology appeared to moderate workload. Conclusion The DRT is a useful workload measure in simulated helicopter settings. The level of symbology-moderated pilot workload. The increased level of symbology appeared to assist pilots’ flight behavior and landing ability. Results indicate that increased symbology has benefits in more difficult scenarios. Applications The DRT is an easily implemented and effective measure of cognitive workload in a variety of settings. In the current experiment, the DRT captures the increased workload induced by varying the environmental conditions, and provides evidence for the use of increased symbology to assist pilots.

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Section: Introductionmentioning

confidence: 87%

“…) inZimmermann et al (2019) and Figures 8-11 in Münsterer et al. (2014), provide good examples of the 3D symbology condition.…”

mentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effects of Increased Visual Information on Cognitive Workload in a Helicopter Simulator

et al. 2020

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“…Further, a conformal 3-D landing symbology provides necessary cues for low-visibility landings [21]. During a European DVE-M campaign, a joint team of researchers from DLR and Hensoldt demonstrated an HWD-based tunnel guidance system which was dynamically updated via a lidar sensor scanning the environment for obstacles [22]. Additionally, Schmerwitz et al [23] developed DLR's own conformal approach and landing symbology.…”

Section: Head-worn Display Symbologymentioning

confidence: 99%

Virtual Cockpit Instruments—How Head-Worn Displays Can Enhance the Obstacle Awareness of Helicopter Pilots

Ernst

Ebrecht

Korn

2021

IEEE Aerosp. Electron. Syst. Mag.

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The rise of augmented reality glasses and related technologies o ers new possibilities for the human-machine interface design of future aircraft. Today, head-worn displays (HWDs) are mainly used by military pilots, for instance by helicopter crews for low-visibility operations close to ground and obstacles. Nevertheless, recent technological advances in this area allow the prediction that these systems could become available for more pilots in the future. This work presents a concept how state-of-the-art HWD symbology can be expanded to get even more out of the advantages of this technology. With so-called "virtual cockpit instruments" (VCIs), an HWD can show information which is conventionally rendered on panel-mounted displays. These VCIs can be imagined as virtual display screens which can be positioned freely around the pilot. Their major bene t is that they create many new options for the design of a exible, situation-adaptive cockpit environment. This paper introduces the general concept and presents several options how such an approach can be put into practice. Here, the concept is applied to helicopter operations in o shore windparks. We implemented a VCI-adapted obstacle awareness display and assessed a set of positioning variants for the new VCI. Two simulator studies -with 11 and 7 participants -provide interesting insights on the realization of this concept. In addition to high subjective ratings, the VCI signi cantly increased the pilot's head-up, eyes-out time -an important measure for challenging maneuvers close to obstacles. Overall, this work illustrates a promising concept for the human-machine interface design of future cockpits and discusses its potentials and limitations.

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Optical parametric-assist frequency modulation for FMCW Lidar enabling double-range velocity measurement

Zhang,

Xie,

et al. 2024

Optics and Lasers in Engineering

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First results of LiDAR-aided helicopter approaches during NATO DVE-mitigation trials

Cited by 9 publications

References 4 publications

The Effects of Increased Visual Information on Cognitive Workload in a Helicopter Simulator

The Effects of Increased Visual Information on Cognitive Workload in a Helicopter Simulator

Virtual Cockpit Instruments—How Head-Worn Displays Can Enhance the Obstacle Awareness of Helicopter Pilots

Optical parametric-assist frequency modulation for FMCW Lidar enabling double-range velocity measurement

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