Encounter Risk Evaluation with a Forerunner UAV
Bauer, Péter and Hiba, Antal and Nagy, Mihály and Simonyi, Ernő and Kuna, Gergely István and Kisari, Ádám and Drotár, István and Zarándy, Ákos (2023) Encounter Risk Evaluation with a Forerunner UAV. REMOTE SENSING, 15 (6). ISSN 2072-4292 10.3390/rs15061512
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Abstract
Forerunner UAV refers to an unmanned aerial vehicle equipped with a downward-looking camera flying in front of the advancing emergency ground vehicles (EGV) to notify the driver about the hidden dangers (e.g., other vehicles). A feasibility demonstration in an urban environment having a multicopter as the forerunner UAV and two cars as the emergency and dangerous ground vehicles was done in ZalaZONE Proving Ground, Hungary. After the description of system hardware and software components, test scenarios, object detection and tracking, the main contribution of the paper is the development and evaluation of encounter risk decision methods. First, the basic collision risk evaluation applied in the demonstration is summarized, then the detailed development of an improved method is presented. It starts with the comparison of different velocity and acceleration estimation methods. Then, vehicle motion prediction is conducted, considering estimated data and its uncertainty. The prediction time horizon is determined based on actual EGV speed and so braking time. If the predicted trajectories intersect, then the EGV driver is notified about the danger. Some special relations between EGV and the other vehicle are also handled. Tuning and comparison of basic and improved methods is done based on real data from the demonstration. The improved method can notify the driver longer, identify special relations between the vehicles and it is adaptive considering actual EGV speed and EGV braking characteristics; therefore, it is selected for future application.
| Item Type: | Article |
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| Subjects: | Q Science > QA Mathematics and Computer Science > QA75 Electronic computers. Computer science / számítástechnika, számítógéptudomány |
| Divisions: | Cellular Sensory and Optical Wave Computing Laboratory Systems and Control Lab |
| SWORD Depositor: | MTMT Injector |
| Depositing User: | MTMT Injector |
| Date Deposited: | 18 May 2023 07:08 |
| Last Modified: | 11 Sep 2023 14:59 |
| URI: | https://eprints.sztaki.hu/id/eprint/10515 |
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