To improve the operational efficiency and safety level of airport operations,a study on flight area safety warning on airport surfaces is being conducted.The spatial location of aircraft is transformed into a pose space,obstacles in the pose space are constructed using the Minkowski method,and risk values in typical conflict scenarios are calculated using an artificial potential field method.A flight area conflict warning model is then established based on trajectory pre-diction results and risk thresholds.Through simulation case analysis,the time of entry into the potential conflict zone and the latest escape time for three conflict types are obtained under the basic driving model and conflict model based on con-figuration space.The results show that in head-on conflicts,the time of entry into the potential conflict zone is 1.82 s for the former and 2.12 s for the latter,with the latest escape time being 4.67 s for the former and 4.89 s for the latter.In o-vertaking conflicts,the time of entry into the potential conflict zone is 1.44 s for the former and 1.56 s for the latter,with the latest escape time being 2.86 s for the former and 3.01 s for the latter.In crossing conflicts,the time of entry into the potential conflict zone is 3.57 s for the former and 3.80 s for the latter,with the latest escape time being 5.10 s for the former and 5.33 s for the latter.The results indicate that the conflict risk measurement model based on configuration space can more accurately determine the time of entry into the conflict zone.
NETL
NSTL
万方数据
