VMS (variable message sign) information routing method based on vehicle position estimation

Abstract

The invention discloses a VMS (variable message sign) information routing method based on vehicle position estimation, and the method comprises the following steps: (1), obtaining the traffic violation information of a vehicle; (2), constructing a local highway network model of a region where a traffic violation place is located, and pre-estimating the paths of the vehicle, wherein each path is provided with at least one VMS; (3), calculating the probability that the vehicle arrives at the first VMS on each path; (4), estimating the time T1 when the vehicle arrives at the VMS M with the largest probability, and publishing the traffic violation information at the moment T1 through the VMS. The method gives full consideration to the parameters of the violation place and time of the vehicle and the time difference between the current time and the violation time, and enables the notified violation information to be directive, to have real-time performances and to be visual.

Description

technical field [0001] The invention relates to the field of road transportation, in particular to a variable information board information routing method based on vehicle position estimation. Background technique [0002] At present, most of the information displayed on the expressway variable information board is suggestive content, such as bad weather, dangerous road sections, etc., which are mainly aimed at all passing vehicles on the expressway, and are universal, which is easy to cause visual fatigue of drivers. [0003] The vehicle position estimation has the following problems: (1) GPS and other positioning equipment are used to obtain the vehicle position, and the positioning equipment on the vehicle is completely relied on to locate the vehicle; because the signals of GPS and other positioning equipment are very weak in tunnels, underground parking lots and other places, even It can be ignored, causing the vehicle to be unable to locate the vehicle in these places ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the information displayed on the expressway variable information board is suggestive content, such as bad weather, dangerous road sections, etc., which are mainly aimed at all passing vehicles on the expressway, and are universal, which can easily cause the driver's visual fatigue

[0003] The vehicle position estimation has the following problems: (1) GPS and other positioning equipment are used to obtain the vehicle position, and the positioning equipment on the vehicle is completely relied on to locate the vehicle; because the signals of GPS and other positioning equipment are very weak in tunnels, underground parking lots and other places, even It can be ignored, causing the vehicle to be unable to locate the vehicle in places where there is no GPS signal or the GPS signal is weak

(3) If the vehicle is neither equipped with positioning equipment such as GPS or cannot obtain the positioning information of the vehicle, nor does it have the driving parameters of the vehicle, then the vehicle cannot be positioned in this case

[0004] The information displayed on the variable information board on the expressway has the following problems: (1) The displayed information is mostly prompt information, and it is aimed at all vehicles on the expressway, not for vehicles passing through the variable information board, and is not directional

(2) Even though the display information on the variable information board is directional, most of the display information is displayed manually, and the real-time performance is poor

[0005] At present, it is difficult to obtain evidence and law enforcement for traffic violations on expressways, especially the real-time law enforcement is poor and the law enforcement effect is not ideal, so it is difficult to meet the needs of road traffic safety supervision

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