Collision avoidance system

About: Collision avoidance system is a research topic. Over the lifetime, 1788 publications have been published within this topic receiving 23667 citations.

Airport runway collision avoidance system and method

Abstract: Systems and methods for avoiding runway collisions. In a disclosed embodiment of the invention, a collision avoidance system includes a position-sensing device that is operable to determine a position of the aircraft, and a communications system operable to support two-way communications between the aircraft and other similarly configured aircraft. A collision avoidance processor is coupled to the position-sensing device and the communications system that is configured to generate a message if the aircraft moves into a restricted zone positioned proximate to the airport.

Dynamic safety shields for situation assessment and decision making in collision avoidance tasks

Abstract: A system and method provided on an ego-vehicle for assessing potential threats in a vehicle collision avoidance system, and/or to plan safety-allowed vehicle trajectories for vehicle path planning The method includes detecting objects in a predetermined vicinity around the ego-vehicle, and determining the relative velocity or other measure between each detected object and the ego-vehicle The method defines a virtual dynamic safety shield around each detected object that has a shape, size and orientation that is determined by predetermined properties related to the current state of traffic around the ego-vehicle The method also defines an action grid around the ego-vehicle The method assesses the threat level of a potential collision between each detected object based on how the shield for that object and the action grid interact The interaction between the shields and the grid induces actions aimed at aborting collisions and allows for trajectory planning

Systems and methods for evaluating driver attentiveness for collision avoidance

Abstract: Systems and method for evaluating driver attentiveness are provided. An allocation unit evaluates defined first input data to recognize a specific driving situation among a plurality of defined driving situations. A driver monitoring unit is operatively coupled to the allocation unit and evaluates defined second input data, based on the recognized driving situation, to assess a degree of situation-adapted attentiveness. A functional unit of a collision avoidance system is controlled as a function of the assessed degree of situation-adapted attentiveness.

Vehicle Collision Avoidance System and Method

Abstract: A vehicle collision avoidance system is implemented in a host vehicle. A wireless communication module in the host vehicles wirelessly broadcasts vehicle information packages of the host vehicle and receives external vehicle information packages from other neighboring vehicles. Based on the received vehicle information packages, a collision avoidance process is performed. The process has steps of mapping coordinates system, categorizing collision zones, determining whether a possible collision position exists, calculating a collision time and outputting warning messages. The estimations of the possible collision position and the collision time are not affected by the positions of the neighboring vehicles. Therefore, the neighboring vehicles approaching the host vehicle from different direction are effectively monitored.

A Simplified Simulation Model of Ship Navigation for Safety and Collision Avoidance in Heavy Traffic Areas

Abstract: Based on our previously developed ship collision avoidance steering system, this paper develops a more extensive collision avoidance decision-making system for non-uniformly moving ships. A real-time simulator based on the Six-Dimensional (6D) Manoeuvring Modelling Group (MMG) model is used to simulate the ship's motion. To validate the manoeuvring mathematical model, sea trial measurements of a container ship (C-3) have been selected. This study incorporates Nomoto's second-order model into a numerical model to calculate the turning characteristics of the ship. The manoeuvring indices of Nomoto's model are the knowledge base of the simplified ship simulation model. To verify the ship collision avoidance system with respect to different traffic factors, simple and complex collision avoidance cases have been designed in fast-time simulations with multi-ship encounter conditions. The simplified simulation model developed here can quickly determine the helm angle when the ship makes a collision avoidance manoeuvre, which is helpful for the safety of ship navigation in heavy traffic areas.