Vehicle risk-avoiding optional path searching method supporting diversified waterlogging risk data

• Main Authors: TAN XICHENG, RAO LUOWEN, CHEN YUMIN
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2022
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention provides a vehicle risk-avoiding selectable path searching method supporting diversified waterlogging risk data. The method comprises the following steps: establishing a waterlogging risk-avoiding path node network G1 according to urban road network vector data, rainfall data and diversified input waterlogging risk data; in the node network G1, affected vehicles and danger avoiding points are used as rectangular end points, and the range is expanded to form a new waterlogging danger avoiding path node network G2; calculating an optimal risk avoiding path in the waterlogging risk avoiding network G2; a disaster-affected vehicle and a risk avoiding point are used as rectangular end points, and the range is expanded to form a new waterlogging risk avoiding path node network G3; performing circular buffer area analysis on nodes passed by the optimal risk avoiding path to obtain nodes in a buffer area; nodes in the inland inundation risk avoiding path node network G3 and the obtained buffer area at t