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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.


Papers
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Journal ArticleDOI
TL;DR: The Integrated Navigation and Collision Avoidance System (INCAS) is designed to improve the safety and efficiency of ship operation by increased automation of the navigation and collision avoidance functions.
Abstract: The Integrated Navigation and Collision Avoidance System (INCAS) is designed to improve the safety and efficiency of ship operation by increased automation of the navigation and collision avoidance functions. It is intended that the navigator's knowledge and judgment be augmented by the preprogramming of all known information relating to the selected route and by the continuous and automatic assessment of dangers represented by passing vessels and other obstacles to navigation. The system utilizes a general purpose digital computer, which operates as a central processor for the data provided by the shipboard sensors. The information resulting from this integration and computation is displayed to ship personnel in a form which is easily understandable and requires no operator manipulation or calculation; automatic alarms are also provided. The data compilation and computation, coupled with displays and alarms, restores the watch officer to his decision making role and leaves him unburdened to properly ensure the safety of his vessel. Due to system design, the central data processor may be expanded to operate with other sensors to perform additional tasks.

11 citations

Journal Article
Lian Xiaomin1
TL;DR: A driver model based warning algorithm was developed for vehicle collision avoidance systems based on the comparison of the fixed-distance algorithm, the time-headway algorithm, and the driver-model algorithm with the analysis of braking process and the results show that theDriver-model algorithms are better than theTime- headway algorithm at a velocity of 20 km/h with similar driver- model algorithms results.
Abstract: A driver model based warning algorithm was developed for vehicle collision avoidance systems based on the comparison of the fixed-distance algorithm, the time-headway algorithm, and the driver-model algorithm with the analysis of braking process The warning algorithm simulates the driver's feelings and is easily implemented Its effectiveness was verified by simulations and experiments The results show that the driver-model algorithms are better than the time-headway algorithm at a velocity of 20 km/h with similar driver-model algorithms results, and that the proposed methed is the best among the time-head way algorithm and the two driver-model algorithms when the velocity reaches 30 km/h

11 citations

Patent
26 Dec 2014
TL;DR: In this article, a collision avoidance system consisting of a following vehicle data acquiring unit that acquires following vehicle vehicle data indicating the relative position and relative speed of the following vehicle traveling behind the host vehicle, a travel data acquisition unit that obtains travel data indicating travel conditions for the host vehicles, and a warning data output unit that outputs warning data to the following vehicles if the determination unit determines that there is the possibility of a collision.
Abstract: A collision avoidance system comprises: a following vehicle data acquiring unit that acquires following vehicle data indicating the relative position and relative speed of a following vehicle traveling behind the host vehicle; a travel data acquiring unit that obtains travel data indicating travel conditions for the host vehicle; a specific state extraction unit that extracts specific travel data indicating specific travel conditions for the host vehicle under which the possibility of a collision between the host vehicle and the following vehicle is high; a database unit storing a plurality of pieces of specific travel data; a determination unit that determines whether or not there is the possibility of a collision between the host vehicle and the following vehicle; and a warning data output unit that outputs warning data to the following vehicle if the determination unit determines that there is the possibility of a collision.

10 citations

Proceedings ArticleDOI
19 Aug 2013
TL;DR: The tuned ACAS X logic is found to outperform TCAS for each model in terms of both safety and operational suitability and is assessed using a data-driven blunder model and an operational performance model.
Abstract: The Traffic Alert and Collision Avoidance System (TCAS) has been mandated worldwide to protect against aircraft mid-air collisions. One drawback of the current TCAS design is limited support for certain closely spaced parallel runway operations. TCAS alerts too frequently, leading pilots to often inhibit Resolution Advisories during approach. Research is underway on ACAS X, a next-generation collision avoidance system that will support new surveillance systems and air traffic control procedures. ACAS X has been shown to outperform TCAS for en route encounter scenarios. However, the design parameters that are tuned for the en route environment are not appropriate for closely spaced parallel operations. One concept to allow for closely spaced parallel operations is a procedure-specific mode of the logic that reduces the nuisance alert rate while still providing collision protection. This paper describes the application of surrogate modeling for the purpose of tuning ACAS X for parallel operations. The performance of the tuned system is assessed using a data-driven blunder model and an operational performance model. The tuned ACAS X logic is found to outperform TCAS for each model in terms of both safety and operational suitability.

10 citations

Patent
10 Apr 2015
TL;DR: In this article, a collision system in a vehicle that uses a three dimensional imaging device to map a 3D object external to the vehicle is described, and a positioning module is used to superimpose the position of the body of the vehicle onto the mapped object in dependence of the potential impact location.
Abstract: The present invention relates to a collision system in a vehicle that uses a three dimensional imaging device to map a three dimensional object external to the vehicle. A positioning module will superimpose the position of the body of the vehicle onto the mapped object in dependence of the potential impact location. The positioning module will communicate the impact location to a collision avoidance aid such as an audio or visual warning.

10 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202316
202225
202156
202081
2019128
2018118