Method and system for pedestrian-to-vehicle collision avoidance based on emitted wavelength

Abstract

Methods and systems for collision avoidance between vulnerable road users (VRUs) and vehicles are provided. In one aspect, a method and a system for collision avoidance between vulnerable road users (VRUs) and vehicles based on emitted signal relates to VRUs and vehicles configured to emit and receive a proximity signal pertaining to road usage safety before accidents happen. The method and the system for pedestrian-to-vehicle (P2V) collision avoidance is based on emitted signal at the edge. The usefulness of the method and the system is for providing danger notifications pertaining to the field of road safety, and pertaining to collision avoidance, before accidents happen. The method and the system further relate to precautious collision avoidance notifications using past, current and predicted trajectories of VRUs and vehicles, based on emitted signal at the edge.

What is claimed is: 
     
         1 . A method for collision avoidance between vulnerable road users (VRUs) and vehicles, the method comprising:
 first interrogating, at a communications server, a predicted spatiotemporal trajectory of at least one of a plurality of long-term evolution (LTE)-capable user equipment (UE) terminals, wherein each of the UE terminals is linked to either (i) one of a plurality of vehicles or (ii) one of a plurality of VRUs, wherein the communications server comprises a computing device and a first embedded algorithm for spatiotemporal trajectory prediction, and wherein the first interrogating comprises:
 receiving past and current spatiotemporal trajectory data from one or more sensors associated with the at least one UE terminal; 
 storing the past and current spatiotemporal trajectory; 
 computing the predicted spatiotemporal trajectory of the at least one UE terminal; 
 first determining whether a spatiotemporal distance between any one pair of the UE terminals is within a proximity range; 
 obtaining a communications server notification if the first determining relates one of the pair of the UE terminals linked to one of the vehicles and the other one of the pair of the UE terminals linked to one of the VRUs; and 
 tagging the pair of the UE terminals as notified UE terminals, 
   the communications server further configured to control each of the notified UE terminals to perform second interrogating the predicted spatiotemporal proximity, wherein the second interrogating comprises:
 acknowledging the communications server notification; 
 activating a proximity signal including a radio frequency emission; 
 computing the predicted spatiotemporal proximity of each of the notified UE terminals, wherein each of the notified UE terminals comprises a processor and a second embedded algorithm for spatiotemporal proximity prediction; 
 second determining whether the predicted spatiotemporal proximity between he notified UE terminals is within a proximity threshold limit; 
 third determining whether the rate of approaching of the predicted spatiotemporal proximity between the notified UE terminals is increasing; and 
 providing a danger notification pertaining to road usage safety based on the first, second, and third determining.