Vibrations in dynamic driving simulator: Study and implementation

This paper shows the effect of adding vibrations in a car cabin during driving simulation on driver perception. Actually, current dynamic driving simulators induce the simulator sickness and it still difficult for the driver to project himself in the virtual reality due to a lack of perception. To know the effect of vibrations on a subject, the effect of the whole body vibration must be defined, as the sources of vibration in a car cabin. After determining all the parameters we propose to determine a formula to produce the vibrations in function of the car state, the road and the boundary conditions. Then experimentation with nine subjects is done to define the exact effect of the vibrations and the new perception of the road in the simulation. In order to do these experimentations, three actuators were installed inside the cabin of the car driving simulator from Institut Image – Arts et Metiers ParisTech

Dynamic Platform for Virtual Reality Applications

In virtual reality, a simulator exists for each application and is therefore designed to fullfil simulation requirements. In this poster, we present a novel dynamic platform that can be used in different configurations. This platform aims at being as adaptive as possible for usages with different simulation devices (HMD, CAVE, ...). The platform allows to add new feedbacks to simulation with displacements and vibrations. This poster proposes different scenarii where it is possible to use this dynamic platform, bringing insight to new creative applications.Bourgogne Region Counci

Using Cybersickness Indicators to Adapt Navigation in Virtual Reality: A Pre-study

We propose an innovative method to navigate in a virtual environment by adapting the acceleration parameters to users in real time, in order to reduce cybersickness. Indeed, navigation parameters for most navigation interfaces are still determined by rate-control devices. Inappropriate parameter settings may lead to strong sickness, making the application unusable. Past research found that especially accelerations should not be set too high. Here, we define the accelerations as a function of a cybersickness indicator: the Electro-Dermal Activity (EDA). A pre-study was conducted to test the effectiveness of our approach and showed promising results where cybersickness tends to decrease with our adaptive navigation method.Bourgogne-Franche-Comté counci

Effect of simulated rumble strips in static driving simulator - a pre-study

In this article, we present an experiment whose goal is to show the impact of adding transverse rumble strips on the driver’s behavior. Actually rumble strips are used to increase the security on dangerous crossroad. To do this we developed a system that allows reproducing rumble strips in simulation using vibrations. The system is mounted on a dynamic driving simulator and the simulation is made with ScanerStudio

Effect of footstep vibrations and proprioceptive vibrations used with an innovative navigation method

This study proposes to investigate the effect of adding vibration feedback to a navigation task in virtual environment. Previous study used footstep vibrations and proprioceptive vibrations in order to decrease the cyber-sickness and increase the sense of presence. In this study, we experiment the same vibration modalities but with a new navigation method. The results show that proprioceptive vibrations do not impact the sense of presence neither the cyber-sickness while footstep vibrations increase sense of presence and decrease in a certain way cyber-sickness.Burgundy region through the JCE funding projec

Evaluating Telecollaboration Modalities for the Realization of an Industrial Maintenance Operation in a Constrained Environment

The continuous improvement of reactivity and resilience of the maintenance teams is one of many industrial companies’ priorities, especially in the scope of urgent interventions. To save valuable time usually lost travelling, it is possible to mobilize a technician near the defective infrastructure, and an experienced technician to guide him entirely remotely. Teleassistance, or telecollaboration, is a subject whose interest has grown widely in recent years in line with the evolution of digital technologies. Our study brings a new eye towards the current state of the art with an important focus on the industrial aspect of the operation; in terms of constraints but also of tasks to be realized. We present an interface of telecollaboration specially developed for Android tablets in order to evaluate the quality of the communication as well as the performance of an industrial maintenance operation on the operator-assistant format. The raised problematic is related to the methodology for finding the most optimal methods and formats of communication according to the quality of the available Internet network. The results of this study intend to provide relevant information on the use of teleassistance in an industrial environment according to different levels of available Internet speeds, or different work constraints such as noise or the use of safety equipment. Our work proves that it is essential to provide some form of audio communication to the collaborators to ensure the proper execution of the operation; and solutions are presented in the case where it is impossible to do so, depending on the cause, whether it is related to the work environment or connectivity

Effect of proprioceptive vibrations on simulator sickness during navigation task in virtual environment

In virtual reality the navigation task can generate motion sickness also called simulator sickness or cyber-sickness. This in mainly due to the lack of sensory feedbacks during the task. The presented work aims at studying proprioceptive vibrations for improving the navigation task, decreasing simulator sickness and improving the sense of presence. In this study, proprioceptive vibrations are used to stimulate the lower gluteus maximus muscles during the avatar displacement in the virtual world. The experiment shows the impact of proprioceptive vibrations on navigation task

Human behaviour analysis when using Head-Up Display systems in autonomous driving situations

 This paper covers an autonomous driving situation, in which a fully automated vehicle was proposed for driving along a specific route, while some safety-related information was projected in a Head-Up Display (HUD) system. This situation was tested by 10 subjects in a driving simulator, in order to estimate how the mental discomfort in autonomous driving situations could be influenced when using or not the proposed HUD system. The above, was performed firstly by measuring and analysing for all test subjects their pupil size, blink rate, heart rate, temperature and electro-dermal activity as discomfort estimators; and secondly, by developing a categorical questionnaire for identifying anxiety and stress. According to the results, there was not enough evidence for confirming a significant reduction on the measured discomfort variables (p-value<0.05) while using the proposed HUD visual interfaces; these results were also supported by all categorical questions developed after the proposed experimentation. In conclusion, under the experimental considerations here proposed the HUD systems do not influence the mental discomfort in autonomous vehicles.This study has been financially supported by the Pontificia Universidad Javeriana (Bogota, Colombia). Project “Análisis del comportamiento del conductor cuando se utilizan sistemas automotrices Head-Up Display”, ID 07228

Mechanism of Integrating Force and Vibrotactile Cues for 3D User Interaction within Virtual Environments

Proper integration of sensory cues facilitates 3D user interaction within virtual environments (VEs). Studies showed that the integration of visual and haptic cues follows maximum likelihood estimation (MLE). Little effort focuses however on the mechanism of integrating force and vibrotactile cues. We thus investigated MLE's suitability for integrating these cues. Within a VE, human users undertook 3D interaction of navigating a flying drone along a high-voltage transmission line for inspection. The users received individual force or vibrotactile cues, and their combinations in collocated and dislocated settings. The users' task performance including completion time and accuracy was assessed under each individual cue and setting. The presence of the vibrotactile cue promoted a better performance than the force cue alone. This agreed with the applicability of tactile cues for sensing 3D surfaces, herein setting a baseline for using MLE. The task performance under the collocated setting indicated a degree of combining the individual cues. In contrast, the performance under the dislocated setting was alike under the individual vibrotactile cue. These observations imply a possible role of MLE in integrating force and vibrotactile cues for 3D user interaction within VEs

Defining an Indicator for Navigation Performance Measurement in VE Based on ISO/IEC15939

Navigation is a key factor for immersion and exploration in virtual environment (VE). Nevertheless, measuring navigation performance is not an easy task, especially when analyzing and interpreting heterogeneous results of the measures used. To that end, we propose, in this paper, a new indicator for measuring navigation performance in VE based on ISO/IEC 15939 standard. It allows effective integration of heterogeneous results by retaining its raw values. Also, it provides a new method that offers a comprehensive graphical visualization of the data for interpreting the results. The experimental study had shown the feasibility of this indicator and its contribution to statistical results.Burgundy Franche-Comté counci