HUMAN PERCEPTION EXPERIMENT IN UNDERGROUND SPACE ENHANCED WITH MIXED REALITY

АУТОР(И) / AUTHOR(S): Mingyi Lin, Fang Liu

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DOI:  10.46793/ACUUS2025.4.13.65

САЖЕТАК / ABSTRACT:

Underground spaces are rapidly expanding, with their functions increasingly extending to commercial, entertainment, and residential areas. However, the inherent characteristics of closure and complexity in these environments significantly impact user experience and safety. An experimental system was developed to explore human perception in underground spaces.

The system consisted of three main components: a mixed reality (MR) device, a set of wearable biosensors, and a data platform. Typical elements of the underground environment were built by digital tools and overlaid onto real-world physical space using the MR device. Scenarios, such as fire hazards or earthquakes, were simulated based on physical mechanism and introduced into the MR environment. During these simulations, human responses were monitored via wearable biosensors. All data were transmitted to and stored on the data platform, where analysis revealed correlations between human responses and environmental factors, providing insights for the optimization of underground spaces.

A fire drill scenario was studied as the application of this system. Smoke is generated by mixed-reality device according to the data derived from Fire Dynamics Simulator(FDS), after which the participant was asked to find the exit under low visibility. Meanwhile, the response of participants, including electroencephalogram(EEG), electrodermal activity(EDA) and photoplethysmographic(PPG), was collected for further analysis. It was indicated that the system could effectively build a vivid experimental scenario with less modeling work and higher movement freedom than virtual reality(VR) and provided a more immersive experience than augmented reality(AR). The human physiological signal can be recorded and utilized as a supplement for subjective response in the future.

КЉУЧНЕ РЕЧИ / KEYWORDS:

human factors, underground space, mixed reality, fire drill

ПРОЈЕКАТ / ACKNOWLEDGEMENT:

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