Handling Qualities Implications for Crewed Spacecraft Operations

Abstract Handling qualities embody those qualities or characteristics of an aircraft that govern the ease and precision with which a pilot is able to perform the tasks required in support of an aircraft role. These same qualities are as critical, if not more so, in the operation of spacecraft. A research, development, test, and evaluation process was put into effect to identify, understand, and interpret the engineering and human factors principles which govern the pilot-vehicle dynamic system as they pertain to space exploration missions and tasks. Toward this objective, piloted simulations were conducted at the NASA Langley Research Center and Ames Research Center for earth-orbit proximity operations and docking and lunar landing. These works provide broad guidelines for the design of spacecraft to exhibit excellent handling characteristics. In particular, this work demonstrates how handling qualities include much more than just stability and control characteristics of a spacecraft or aircraft. Handling qualities are affected by all aspects of the pilot-vehicle dynamic system, including the motion, visual and aural cues of the vehicle response as the pilot performs the required operation or task. A holistic approach to spacecraft design, including the use of manual control, automatic control, and pilot intervention/supervision is described. The handling qualities implications of design decisions are demonstrated using these pilot-in-the-loop evaluations of docking operations and lunar landings

Advances in Human-Robot Interaction

Rapid advances in the field of robotics have made it possible to use robots not just in industrial automation but also in entertainment, rehabilitation, and home service. Since robots will likely affect many aspects of human existence, fundamental questions of human-robot interaction must be formulated and, if at all possible, resolved. Some of these questions are addressed in this collection of papers by leading HRI researchers

‘Subtle’ Technology: Design for Facilitating Face-to-Face Interaction for Socially Anxious People

PhD thesisShy people have a desire for social interaction but fear being scrutinised and rejected. This conflict results in attention deficits during face-to-face situations. It can cause the social atmosphere to become ‘frozen’ and shy persons to appear reticent. Many of them avoid such challenges, taking up the ‘electronic extroversion’ route and experiencing real-world social isolation. This research is aimed at improving the social skills and experience of shy people. It establishes conceptual frameworks and guidelines for designing computer-mediated tools to amplify shy users’ social cognition while extending conversational resources. Drawing on the theories of Social Objects, ‘natural’ HCI and unobtrusive Ubiquitous Computing, it proposes the Icebreaker Cognitive-Behavioural Model for applying user psychology to the systems’ features and functioning behaviour. Two initial design approaches were developed in forms of Wearable Computer and evaluated in a separate user-centred study. One emphasised the users’ privacy concerns in the form of a direct but covert display of the Vibrosign Armband. Another focused on low-attention demand and low-key interaction preferences – rendered through a peripheral but overt visual display of the Icebreaker T-shirt, triggered by the users’ handshake and disguised in the system’s subtle operation. Quantitative feedback by vibrotactile experts indicated the armband effective in signalling various types of abstract information. However, it added to the mental load and needed a disproportionate of training time. In contrast, qualitative-based feedback from shy users revealed unexpected benefits of the information display made public on the shirt front. It encouraged immediate and fluid interaction by providing a mutual ‘ticket to talk’ and an interpretative gap in the users’ relationship, although the rapid prototype compromised the technology’s subtle characteristics and impeded the users’ social experience. An iterative design extended the Icebreaker approach through a systematic refinement and resulted in the Subtle Design Principle implemented in the Icebreaker Jacket. Its subtle interaction and display modalities were compared to those of a focal-demand social aid, using a mixed-method evaluation. Inferential analysis results indicated the subtle technology more engaging with users’ social aspirations and facilitating a higher degree of unobtrusive experience. Through the Icebreaker model and Subtle Design Principle, together with the exploratory research framework and study outcome, this thesis demonstrates the advantages of using subtle technology to help shy users cope with the challenges of face-to-face interaction and improve their social experience.RCUK under the Digital Economy Doctoral Training scheme, through MAT programme, EPSRC Doctoral Training Centre EP/G03723X/1

Improving spatial orientation in virtual reality with leaning-based interfaces

Advancement in technology has made Virtual Reality (VR) increasingly portable, affordable and accessible to a broad audience. However, large scale VR locomotion still faces major challenges in the form of spatial disorientation and motion sickness. While spatial updating is automatic and even obligatory in real world walking, using VR controllers to travel can cause disorientation. This dissertation presents two experiments that explore ways of improving spatial updating and spatial orientation in VR locomotion while minimizing cybersickness. In the first study, we compared a hand-held controller with HeadJoystick, a leaning-based interface, in a 3D navigational search task. The results showed that leaning-based interface helped participant spatially update more effectively than when using the controller. In the second study, we designed a "HyperJump" locomotion paradigm which allows to travel faster while limiting its optical flow. Not having any optical flow (as in traditional teleport paradigms) has been shown to help reduce cybersickness, but can also cause disorientation. By interlacing continuous locomotion with teleportation we showed that user can travel faster without compromising spatial updating

Augmented reality and scene examination

The research presented in this thesis explores the impact of Augmented Reality on human performance, and compares this technology with Virtual Reality using a head-mounted video-feed for a variety of tasks that relate to scene examination. The motivation for the work was the question of whether Augmented Reality could provide a vehicle for training in crime scene investigation. The Augmented Reality application was developed using fiducial markers in the Windows Presentation Foundation, running on a wearable computer platform; Virtual Reality was developed using the Crytek game engine to present a photo-realistic 3D environment; and a video-feed was provided through head-mounted webcam. All media were presented through head-mounted displays of similar resolution to provide the sole source of visual information to participants in the experiments. The experiments were designed to increase the amount of mobility required to conduct the search task, i.e., from rotation in the horizontal or vertical plane through to movement around a room. In each experiment, participants were required to find objects and subsequently recall their location. It is concluded that human performance is affected not merely via the medium through which the world is perceived but moreover, the constraints governing how movement in the world is controlled