Traffic light green-wave vehicle speed inducing method and system based on V2I

Abstract

The invention discloses a traffic light green-wave vehicle speed inducing method and system based on V2I. A data processing unit obtains a speed suggestion value or interval, namely the green-wave vehicle speed, when the real-time distance L of a traffic light and vehicles, the corresponding vehicle speed V, and the display state and countdown time of a traffic light of a downstream crossing are collected by a collecting unit; a display unit displays the display state and countdown state of the traffic light of the downstream crossing and displays the speed suggestion value or interval obtained by the data processing unit; by means of the vehicle-road real-time bidirectional communication under the vehicle-road coordinative environment, through the state of the vehicles and the state of the traffic light of the downstream crossing where the vehicles are driven, the reasonable passing speed of the vehicles is calculated, the average travel time, average delay time and average parking frequency of the vehicles are effectively reduced, the passing capacity of the vehicles can be improved within the green-wave vehicle speed range, and meanwhile the time for waiting for the red light atthe crossing is shortened. The system is simple in structure and convenient to control and greatly improves the passing capacity of the road vehicles.

Description

technical field [0001] The invention relates to the field of Internet of Vehicles, in particular to a V2I-based method and system for inducing traffic lights and green wave vehicle speeds. Background technique [0002] In the urban road network, the arterial collaborative control method is often adopted to improve the traffic operation efficiency of the arterial road. In the prior art, the roadside fixed guidance screen or other display devices are used to issue a brief red and green display status at the intersection to the vehicle driver or conduct vehicle speed guidance at a fixed green wave speed. However, due to the influence of various uncertain factors, it is difficult for the vehicle to keep in the green wave zone all the time, resulting in poor application effect of the green wave. There are certain defects in such information release or vehicle speed induction methods. [0003] Most of the current fixed display guidance devices only issue consistent signal forecas...

AI Technical Summary

Problems solved by technology

However, affected by various uncertain factors, it is difficult for vehicles to stay within the green wave zone all the time, resulting in poor green wave application effects. There are certain defects in such information release or vehicle speed induction methods

[0003] Most of the current fixed display guidance devices only issue consistent signal forecasts and speed guidance information to vehicle drivers, lacking flexibility

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