Ramp afflux-in and afflux-out early warning system

Abstract

The invention relates to the technical field of vehicle-road cooperation, in particular to a ramp afflux-in and afflux-out early warning system, which comprises the following components: C1, a vehicle detection triggering unit: when a vehicle runs on a ramp, a thunder-sight fusion all-in-one machine sends out an early warning signal, and finally, the early warning signal is respectively transmitted to a vehicle early warning prompt unit and an RSU data communication unit through two information links; C2, a vehicle early-warning prompt unit: a control panel receives a control signal from the LORA receiving end, an LED information board is linked to pop up early-warning text information, and warning is given out to passing vehicles; C3, a RSU data communication unit: when the RSU data communication unit receives the data, the data are respectively sent to a vehicle-mounted OBU and a cloud platform, the vehicle-mounted OBU broadcasts early warning information, and the cloud platform further processes the data; after the ramp vehicle normally passes, the early warning signal disappears, the LED information board does not pop out early warning text information any more, and the RSU data communication unit does not broadcast the early warning information any more.

Description

technical field [0001] The invention relates to the technical field of vehicle-road coordination, in particular to an early-warning system for inbound and outbound ramps. Background technique [0002] In recent years, with the rapid expansion of the urban expressway network, the urban expressway has gradually become an increasingly important part of the urban road network, and has become an important guarantee for the rapid operation of urban traffic. The merging area is the link to realize the separation and integration of the internal traffic flow of the expressway system and other traffic flows, and it is an important node to ensure the efficient passage of both expressway and urban ordinary roads. In the merging area of ​​urban expressway, because the on-ramp vehicle and the normal driving vehicle on the expressway cannot predict each other when the on-ramp vehicle merges in, and the vehicle behind the right lane cannot predict the exit behavior of the vehicle in front w...

AI Technical Summary

Problems solved by technology

In the merging area of ​​urban expressway, because the on-ramp vehicle and the normal driving vehicle on the expressway cannot predict each other when the on-ramp vehicle merges in, and the vehicle behind the right lane cannot predict the exit behavior of the vehicle in front when the expressway vehicle merges out, When vehicles in the merging area perform ramp in-and-out behaviors, it often causes traffic flow disorder in the merging area, increasing the number of traffic conflicts, etc.