Vehicle collision early warning method and system

• Main Authors: JIANG QIBIN, XIE TIANCHANG, ZHANG JINMEI, LIAO KAN, HU ZHIQIANG, ZHANG HUA, LYU WEI, WANG HAIYING, PAN LIANGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 21.04.2023
• Subjects: PHYSICS; SIGNALLING; TRAFFIC CONTROL SYSTEMS

The invention provides a vehicle collision early warning method and system, and the method comprises the steps: obtaining a first road image and a second road image in front of a target vehicle, and carrying out the preprocessing of the images, and obtaining a first road processing image and a second road processing image; identifying and extracting a first image coordinate and a second image coordinate of the obstacle vehicle; calculating a first longitudinal distance and a first transverse distance between the target vehicle and the obstacle vehicle, and judging whether the obstacle vehicle has a lane changing intention or not; if yes, a second longitudinal distance is calculated, and whether the second longitudinal distance is smaller than a preset safety distance or not is judged; if the lane changing intention does not exist, whether the first longitudinal distance is smaller than the preset safety distance or not is judged. The vehicle collision early warning method can be suitable for vehicle collision