Enabling operational autonomy in earth-moving with real-time 3D environment modelling

2021 ◽  
Author(s):  
Ross Walker ◽  
Simon Smith ◽  
Frédéric Bosché
2020 ◽  
Vol 9 (1) ◽  
pp. 6 ◽  
Author(s):  
Omar Cheikhrouhou ◽  
Anis Koubaa ◽  
Anis Zarrad

The combination of wireless sensor networks (WSNs) and 3D virtual environments opens a new paradigm for their use in natural disaster management applications. It is important to have a realistic virtual environment based on datasets received from WSNs to prepare a backup rescue scenario with an acceptable response time. This paper describes a complete cloud-based system that collects data from wireless sensor nodes deployed in real environments and then builds a 3D environment in near real-time to reflect the incident detected by sensors (fire, gas leaking, etc.). The system’s purpose is to be used as a training environment for a rescue team to develop various rescue plans before they are applied in real emergency situations. The proposed cloud architecture combines 3D data streaming and sensor data collection to build an efficient network infrastructure that meets the strict network latency requirements for 3D mobile disaster applications. As compared to other existing systems, the proposed system is truly complete. First, it collects data from sensor nodes and then transfers it using an enhanced Routing Protocol for Low-Power and Lossy Networks (RLP). A 3D modular visualizer with a dynamic game engine was also developed in the cloud for near-real time 3D rendering. This is an advantage for highly-complex rendering algorithms and less powerful devices. An Extensible Markup Language (XML) atomic action concept was used to inject 3D scene modifications into the game engine without stopping or restarting the engine. Finally, a multi-objective multiple traveling salesman problem (AHP-MTSP) algorithm is proposed to generate an efficient rescue plan by assigning robots and multiple unmanned aerial vehicles to disaster target locations, while minimizing a set of predefined objectives that depend on the situation. The results demonstrate that immediate feedback obtained from the reconstructed 3D environment can help to investigate what–if scenarios, allowing for the preparation of effective rescue plans with an appropriate management effort.


Author(s):  
Matthias Liermann ◽  
Christian Feller ◽  
Florian Lindinger ◽  
Dirk Runge

Abstract The paper presents a HiL test setup for hydraulic propel systems that includes a multi-body dynamic simulation of a vehicle in a realistic 3D environment. It allows testing of driving scenarios under load conditions that would otherwise be very difficult to obtain. The hydraulic-mechanical part of the simulation is modeled in Simulink. An open-source C++ physics engine is used to model the vehicle multi-body mechanics and collision detection between the vehicle and the 3D environment. Despite the high complexity of the hydraulic drive train component models, the constraint of real-time execution of the simulation on a real-time target can be fulfilled.


Author(s):  
Leo Baudouin ◽  
Nicolas Perrin ◽  
Thomas Moulard ◽  
Florent Lamiraux ◽  
Olivier Stasse ◽  
...  

Author(s):  
Giuliana Geronimo ◽  
Salvatore Giannella

3D real time game technologies create an opportunity to design interactive immersive experiences developing affordable, easy-to-use, and incredible virtual worlds for Museums. This chapter presents the potential of these technologies for the development of edutainment content for their visitors at MAIO - Museum of Art Taken Hostage in Cassina de' Pecchi (Milan). The Museum presents the story of 1,623 masterpieces such as Michelangelo, Tiziano, Raffaello, and Canaletto that were stolen in Italy during World War II and never found again. Visitors can explore the artworks through 2 installations: MAIO Virtual Museum, through VR inside an oniric 3D environment, and MAIO Play, a multiplayer video game.


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