GPS data-based highway vehicle abnormal behavior detection method

Abstract

The invention discloses a GPS data-based highway vehicle abnormal behavior detection method comprising the following phases in a data obtaining phase, vehicle dynamic information is obtained via a vehicle-mounted GPS device; in a data processing phase, coordinate data under a Gauss coordinate system is obtained after coordinate conversion operation is performed on the vehicle dynamic information;in a feature extraction phase, converted vehicle dynamic parameter features are extracted according to coordinate data of different times; in an identification and early warning phase, a standard deviation method and a neural network are adopted for identifying vehicle behaviors according to the vehicle dynamic parameter features, and identified vehicle abnormal behaviors are subjected to graded early warning operation. According to the method, a vehicle abnormal driving behavior state can be detected in real time on a highway merely via the vehicle-mounted GPS device, prevention of secondaryhighway accidents can be facilitated, a congestion degree of the highway can be lowered, vehicle delay can be reduced, highway operation efficiency can be improved, and an aim of low carbon and safe trips can be attained.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method for detecting abnormal behavior of expressway vehicles based on GPS data. Background technique [0002] Expressway traffic congestion and traffic safety have become an important research topic in the field of transportation. Abnormal vehicle behavior is the main reason for expressway congestion and traffic accidents. The abnormal behaviors of expressway vehicles mainly include speeding, low-speed driving, reverse driving, emergency braking, temporary parking, emergency parking, abnormal trajectory, etc. There is a process of change for the above abnormal behaviors of the vehicle, and finally a stable state. [0003] If it is possible to detect vehicle behavior and prompt early warning during the process of abnormal behavior changes of the vehicle, when the vehicle reaches the final state, the state of the vehicle can be judged immediately and the final warning ...

AI Technical Summary

Problems solved by technology

Although all have good detection results, the existing algorithms cannot detect and judge abnormal behaviors in these cases for highway sections with imperfect video devices and vehicles without corresponding parameter detection devices

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