A kind of target vehicle trajectory virtual method, device, equipment and medium

Abstract

The embodiment of the present invention relates to the field of intelligent transportation technology, and provides a target vehicle track virtual method, device, equipment, and medium. Firstly, it is determined that the vehicle information of the target vehicle sent by the target radar is received in the current period, and the preset duration before the current period is determined. The vehicle information of the target vehicle is not received within the period, and then according to the normal azimuth of the target radar and the stored vehicle information of the target vehicle, the virtual latitude and longitude of the target vehicle in the lost period is determined, wherein the normal azimuth is the normal of the target radar The angle between the target radar and the true north direction, the normal line is parallel to the road on which the target vehicle is driving, and finally the trajectory of the target vehicle is updated according to the virtual latitude and longitude. In the embodiment of the present invention, after the loss of the target vehicle is determined, the longitude and latitude position of the target vehicle during the loss period is determined based on the normal azimuth angle of the radar and the stored vehicle information of the target vehicle, so that the trajectory of the target vehicle can be virtualized, and the vehicle trajectory can be improved. integrity.

Description

technical field [0001] The present invention relates to the technical field of intelligent transportation, in particular to a virtual method, device, equipment and medium of a target vehicle track. Background technique [0002] By deploying radar groups on the expressway, the real-time location information of vehicles on the entire road section can be monitored. These real-time information can be used in two aspects. Provide auxiliary safe driving functions for vehicles with vehicle wireless communication technology (Vehicle to X, V2X). Second, the operation and management company can realize digital twin display based on high-precision maps based on the positioning of the vehicle's real-time location information. [0003] Among them, the millimeter-wave radar speed measurement is based on the Doppler principle. When the emitted electromagnetic wave and the detected target have relative movement, and the frequency of the echo is different from the frequency of the emission, ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a target vehicle trajectory virtual method, device, equipment and medium to solve the problem in the prior art that the vehicle trajectory information is lost when the vehicle is monitored by radar

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