collision detection


Also found in: Medical, Acronyms, Wikipedia.

collision detection

[kə′lizh·ən di‚tek·shən]
(computer science)
A procedure in which a computer network senses a situation where two computer devices attempt to access the network at the same time and blocks the messages, requiring each device to resubmit its message at a randomly selected time.

collision detection

(networking)
A class of methods for sharing a data transmission medium in which hosts transmit as soon as they have data to send and then check to see whether their transmission has suffered a collision with another host's.

If a collision is detected then the data must be resent. The resending algorithm should try to minimise the chance that two hosts's data will repeatedly collide. For example, the CSMA/CD protocol used on Ethernet specifies that they should then wait for a random time before re-transmitting.

See also backoff.

This contrasts with slotted protocols and token passing.
References in periodicals archive ?
Others just use DCD to perform collision detection as there is no connectivity information except like that of polyhedral and articulated models.
Automatic Collision Detection protects the mechanical components of the robot during the manual programming and test phase.
The report analyzes technologies and markets for CDPS - Collision Detection and Prevention Systems.
PowerINSPECT has included collision detection for many years to warn the user when there was a possibility of any collision between the probe and the item being inspected.
TAG - A multiplayer game utilizing collision detection technology with a new take on a classic: Red Light, Green Light.
Beginning with an overview of Canvas commands and elements, the work covers drawing in Canvas, using text, images and video, animation, sprites, programming physics, collision detection, game development, and developing for mobile platforms.
Gunplay is average, though, with some dodgy collision detection, so it's better to take a stealth-based approach to missions when you can.
CT CoreTechnologie GmbH President Armin Bruening states "We are excited to add the collision detection and wall thickness checker functionalities to the visualization tool.
The 41 papers present a multi-agent approach to collision detection and resolution, a morphological algorithm for color objects classification, technology tools for scripted collaborative learning, and database oriented grid middlewares.
The core functionality typically provided by a game engine includes a rendering engine for 2D or 3D graphics, a physics engine or collision detection (and collision response), sound, scripting, animation, artificial intelligence, networking, streaming, memory management, threading, and a scene graph.
Clearance planes help establish a system that provides collision avoidance, not just collision detection.
To optimize the accuracy of collision detection, a set of 4 sensors are arranged - two on each side of the front fork.

Full browser ?