Results 11 to 20 of about 528,238 (289)

A Novel Collision Avoidance Logic for Unmanned Aerial Vehicles Using Real-Time Trajectory Planning [PDF]

open access: yes, 2014
An effective collision avoidance logic should prevent collision without excessive alerting. This requirement would be even more stringent for an automatic collision avoidance logic, which is probably required by Unmanned Aerial Vehicles to mitigate ...
Lai, Chi Kin
core   +7 more sources

Automatic collision avoidance of ships [PDF]

open access: yes, 2008
One of the key elements in automatic simulation of ship manoeuvring in confined waterways is route finding and collision avoidance. This paper presents a new practical method of automatic trajectory planning and collision avoidance based on an artificial
Lee, B.S., Han, D., Xue, Y.
core   +4 more sources

Visual cueing for collision avoidance system [PDF]

open access: yes, 2012
The modern Traffic Alert and Collision Avoidance System (TCAS) used in airlines today is the TCAS II. It provides pilots with both Traffic Advisory (TA) and Resolution Advisory (RA) which in turn reduces the incidence of mid-air collisions.
Li, Huiying
core   +7 more sources

Ship Collision Avoidance Path Planning Based on Dynamic Domain Potential Field

open access: yes水下无人系统学报, 2023
In view of the limitations of traditional artificial potential field collision avoidance path planning in terms of collision avoidance distance and collision avoidance opportunity, a dynamic ship collision avoidance path planning method based on an ...
Shuo SUN   +3 more
doaj   +1 more source

Collision avoidance tree networks [PDF]

open access: yesComputer Networks and ISDN Systems, 1994
Abstract The Collision Avoidance Tree is a local area network based on a hardware device called the collision avoidance switch. The collision avoidance switch arbitrates random access to a shared communication channel and avoids the penalty of collisions among packets.
Huang, Hung Khei, Suda, Tatsuya
openaire   +3 more sources

MULTI-VESSELS COLLISION AVOIDANCE STRATEGY FOR AUTONOMOUS SURFACE VEHICLES BASED ON GENETIC ALGORITHM IN CONGESTED PORT ENVIRONMENT

open access: yesBrodogradnja, 2022
An improved genetic collision avoidance algorithm is proposed in this study to address the problem that Autonomous Surface Vehicles (ASV) need to comply with the collision avoidance rules at sea in congested sea areas.
Gongxing Wu   +5 more
doaj   +1 more source

Intelligent collision avoidance decision-making method for unmanned ships based on driving practice

open access: yesZhongguo Jianchuan Yanjiu, 2021
Objective In order to realize the intelligent navigation and autonomous collision avoidance of unmanned ships in coastal areas, an intelligent collision avoidance decision-making method based on driving practice is proposed.
Zhiguo DING   +4 more
doaj   +1 more source

Multi-ship Coordinated Collision Avoidance Decision Based on Improved Twin Delayed Deep Deterministic Policy Gradient [PDF]

open access: yesJisuanji kexue, 2023
At present,most models of collision avoidance algorithms take ships as single agent to make collision avoidance decisions,without considering the coordinated avoidance between ships.In the scenario of multi-ship meeting,it will lead to poor avoidance ...
HUANG Renxian, LUO Liang, YANG Meng, LIU Weiqin
doaj   +1 more source

A Robust and Fast Collision-Avoidance Approach for Micro Aerial Vehicles Using a Depth Sensor

open access: yesRemote Sensing, 2021
Collision-avoidance is a crucial research topic in robotics. Designing a collision-avoidance algorithm is still a challenging and open task, because of the requirements for navigating in unstructured and dynamic environments using limited payload and ...
Liang Lu   +3 more
doaj   +1 more source

A Decision-Making Method for Autonomous Collision Avoidance for the Stand-On Vessel Based on Motion Process and COLREGs

open access: yesJournal of Marine Science and Engineering, 2021
A great number of collision accidents can be attributed to incongruous collision-avoidance actions between the give-way vessel and the stand-on vessel in a crossing or overtaking situation.
Bing Wang   +6 more
doaj   +1 more source

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