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.

Threat Detection System for Intersection Collision Avoidance - Real-Time System Performance

Abstract: This paper describes the design and development of an in-vehicle threat detection system which uses multi-radar and is used in a multi-target intersection collision avoidance system. Warnings are issued when joint occupation of an intersection is predicted. The authors first describe the radar and signal processing design. This is followed by a discussion of the concept of using three existing headway radars in a three-beam configuration. Results from experiments using a multi-beam radar configuration in traffic coming from both directions are discussed.

Proactive MDP-based collision avoidance algorithm for autonomous cars

Abstract: This paper considers a decision making problem of an autonomous car driving through the intersection with the presence of human-driving cars. A proactive collision avoidance system based on a learning-based MDP model is proposed in contrast to a reactive system. This approach allows to pose the question as an optimization problem. The proposed learning algorithm explicitly describes the interaction with the environment through a probabilistic transition model. The effectiveness of this concept is supported by a variety of simulations which include driving behaviors with Gaussian-distributed velocity, random actions and real human driving.

All-dimensional airport bird collision avoidance system based on Internet of Things

Abstract: The utility model discloses an all-dimensional airport bird collision avoidance system based on the Internet of Things. The all-dimensional airport bird collision avoidance system is composed of an airport bird collision avoidance monitoring center and a plurality of airport bird information acquirers. The airport bird collision avoidance monitoring center comprises a Zigbee wireless network coordinator, a monitoring base station, a central controller and an early warning device. The airport bird information acquirers include a radar detector, an ARM (advanced RISC machine) microcontroller, an electronic compass, a Zigbee communication module, a power supply and a bird repelling falcon. The all-dimensional airport bird collision avoidance system based on the Internet of Things has the advantages of simple structure, wide coverage range, high efficiency, convenience in management and the like, good all-dimensional bird monitoring and collision avoidance control can be performed in airport areas to be monitored, early warning and bird repelling can be quickly realized, instantaneity is good, implementation speed and control accuracy are high, and bird repelling effect is good.

Effectiveness Analysis for Aviation-Safety Measures in the Absence of Actual Data

Abstract: Sometimes, it seems likely that a technological advance will improve aviation safety, but it is not clear by how much. Uncertainty might be especially great when the innovation strengthens the capabilities of an existing system rather than creates entirely new capabilities. For example, newly-available “name tags” can enhance ground surveillance systems by displaying for air traffic controllers the identity of each plane on the runway. But, when two such planes are in danger of colliding, how much benefit arises because the controller knows that they are (say) United #306 and American #424?Focusing on an example about added functionality for a ground collision avoidance system, we describe a method for generating probabilistic estimates of benefits for a technology not yet deployed. The effort starts with a group activity involving technology experts and system users, in which relevant past events are studied and discussed one at a time. Then key participants are asked individually to assess the probabili...

Research on ship's domain for starting to avoid collision

Abstract: The present situation of ship's domain and arena is analyzed. Based on ship's collision risk index (CRI), a dynamic domain model for ships to avoid collision is put forward. This model is for the ship's automatic collision avoidance system and can be used to guide the navigator's behavior. The ship's domain is changed with a selected critical value of CRI. For a target ship with CRI equals to zero, its domain does not exit at all. At the end of this paper, an example is given to illustrate the application of this model.