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Safe navigation in real-time is challenging because engineers need to work with uncertain vehicle dynamics, variable external disturbances, and imperfect controllers. A common safety strategy is to inflate obstacles by hand-defined margins.…

机器人学 · 计算机科学 2021-10-08 Cherie Ho , Jay Patrikar , Rogerio Bonatti , Sebastian Scherer

Real-time embedded platforms with resource constraints can take the benefits of mixed-criticality system where applications with different criticality-level share computational resources, with isolation in the temporal and spatial domain. A…

系统与控制 · 电气工程与系统科学 2022-08-31 Shibarchi Majumder , Jens Frederik Dalsgaard Nielsen , Thomas Bak

Airborne transmission of SARS-CoV-2 via virus-laden aerosols in enclosed spaces poses a significant concern. Elevators, commonly utilized enclosed spaces in modern tall buildings, present a challenge as the impact of varying heating,…

流体动力学 · 物理学 2023-06-28 Ata Nazari , Changchang Wang , Ruichen He , Farzad Taghizadeh-Hesary , Jiarong Hong

We investigate the problem of finding paths that enable a robot modeled as a Dubins car (i.e., a constant-speed finite-turn-rate unicycle) to escape from a circular region of space in minimum time. This minimum-time escape problem arises in…

系统与控制 · 电气工程与系统科学 2022-11-04 Timothy L. Molloy , Iman Shames

Collective behavior of people in large groups and emergent crowd dynamics can have dangerous and disastrous results when panic is introduced. These events can be caused by emergency situations such as fires in a large building or a…

统计计算 · 统计学 2022-12-19 Janey Alex , Jason Stillerman , Noah Fritzhand , Tucker Paron

This article presents a new, holistic model for the air traffic management system, built during the Vista project. The model is an agent-driven simulator, featuring various stakeholders such as the Network Manager and airlines. It is a…

物理与社会 · 物理学 2020-09-24 Luis Delgado , Gerald Gurtner , Andrew Cook , Samuel Cristobal , Jorge Martin

This paper considers how to ensure that a system of fixed wing Unmanned Aerial Vehicles (UAVs) can avoid collisions. To do so we develop a novel method for creating a barrier function, which is similar to a Lyapunov function and can be used…

机器人学 · 计算机科学 2021-07-22 Eric Squires , Pietro Pierpaoli , Rohit Konda , Samuel Coogan , Magnus Egerstedt

In the event of a disaster, saving human lives is of utmost importance. For developing proper evacuation procedures and guidance systems, behavioural data on how people respond during panic and stress is crucial. In the absence of real…

多智能体系统 · 计算机科学 2019-10-03 Rohit K. Dubey , Samuel S. Sohn , Christoph Hoelscher , Mubbasir Kapadia

This contribution reports on the research project SKRIBT and some of its results. An evacuation simulation based on VISSIM's pedestrian dynamics simulation was developed, that -- with high time resolution -- integrates results from studies…

计算物理 · 物理学 2014-02-10 Tobias Kretz , Georg Mayer , Andreas Muehlberger

Fixed-wing UAVs have transformed the transportation system with their high flight speed and long endurance, yet their safe operation in increasingly cluttered environments depends heavily on effective collision avoidance techniques. This…

系统与控制 · 电气工程与系统科学 2024-07-30 Aryan Agarwal , Ravi Agrawal , Manan Tayal , Pushpak Jagtap , Shishir Kolathaya

The "faster is slower" effect raises when crowded people push each other to escape through an exit during an emergency situation. As individuals push harder, a statistical slowing down in the evacuation time can be achieved. The slowing…

物理与社会 · 物理学 2017-11-08 I. M. Sticco , F. E. Cornes , G. A. Frank , C. O. Dorso

We design an optimal group boarding method using a stochastic cellular automata model for passenger movements, which is extended by a virus transmission approach. Furthermore, a new mathematical model is developed to determine an…

物理与社会 · 物理学 2021-04-01 Michael Schultz , Majid Soolaki

Traffic evacuation plays a critical role in saving lives in devastating disasters such as hurricanes, wildfires, floods, earthquakes, etc. An ability to evaluate evacuation plans in advance for these rare events, including identifying…

人工智能 · 计算机科学 2020-08-25 Yu Chen , S. Yusef Shafi , Yi-fan Chen

In trajectory planning and control design for unmanned air vehicles, highly simplified models are typically used to represent the vehicle dynamics and the operating environment. The goal of this work is to perform real-time, but realistic…

流体动力学 · 物理学 2019-02-06 Behdad Davoudi , Ehsan Taheri , Karthik Duraisamy , Balaji Jayaraman , Ilya Kolmanovsky

Respiratory failure is the one of major causes of death in critical care unit. During the outbreak of COVID-19, critical care units experienced an extreme shortage of mechanical ventilation because of respiratory failure related syndromes.…

机器学习 · 计算机科学 2021-09-08 Yilin Yin , Chun-An Chou

This research explores the dynamics of emergency evacuations in the presence of social groups. The investigation was carried out in the context of the basic Social Force Model (SFM). We included attractive feelings between people belonging…

The escape panic version of the Social Force Model (SFM) is a suitable model for describing emergency evacuations. In this research, we analyze a real-life video, recorded at the opening of a store during a Black Friday event, which…

物理与社会 · 物理学 2020-10-28 I. M. Sticco , G. A. Frank , C. O. Dorso

Automated Urban Air Mobility (UAM) can improve passenger transportation and reduce congestion, but its success depends on passenger trust. While initial research addresses passengers' information needs, questions remain about how to…

人机交互 · 计算机科学 2025-01-27 Luca-Maxim Meinhardt , Clara Schramm , Pascal Jansen , Mark Colley , Enrico Rukzio

We analyze the dynamics of room evacuation for mixed populations that include both competitive and cooperative individuals through numerical simulations using the social force model. Cooperative agents represent well-trained individuals who…

物理与社会 · 物理学 2024-05-17 Amir Zablotsky , Marcelo N Kuperman , Sebastián Bouzat

Computer simulation platforms offer an alternative solution by emulating complex systems in a controlled manner. However, existing Edge Computing (EC) simulators, as well as general-purpose vehicular network simulators, are not tailored for…

网络与互联网体系结构 · 计算机科学 2025-01-07 Fan Wu , Xiaolong Xu , Muhammad Bilal , Xiangwei Wang , Hao Cheng , Siyu Wu