COLLISION AVOIDANCE IN TRAFFIC CROSSINGS USING RADAR SENSORS

摘要

A system and method for avoiding collisions in a traffic intersection using radar sensors is disclosed. The system detects the location, speed, size, and direction of travel of objects, including vehicles and vulnerable road users, in and approaching a traffic intersection. Using this information, trajectories for all objects are determined, and, if a likelihood of a collision is determined, one or more traffic signal transitions are delayed in an attempt to avoid the collision.

主权项

1. A system for avoiding collisions in a traffic intersection, the traffic intersection having a plurality of sides, the system comprising:
one or more radar sensors, the one or more radar sensors positioned to detect objects approaching the traffic intersection from all of the sides; a traffic-lights-and-turn-signals controller; an ambient conditions sensor capable of sensing at least an ambient temperature value and a relative humidity value for the air proximate the traffic intersection; and a central controller, which is electrically connected to the one or more radar sensors, the traffic-lights-and-turn-signals controller, and the ambient conditions sensor; wherein the central controller receives data from the one or more radar sensors, the ambient conditions sensor, and the traffic-lights-and-turn-signals controller; predicts a likelihood of a collision during a traffic signal transition; and issues a command to the traffic-lights-and-turn-signals controller to cause a delay in the traffic signal transition, while maintaining at least one predetermined traffic signal timing sequence.