GigE Vision

Gigabit Ethernet Vision

Source: Wikipedia, the free encyclopedia

GigE Vision[1] GigE Vision® is a camera interface standard developed using the Gigabit Ethernet communication protocol.  Introduced in 2006 for high-performance industrial cameras, the GigE Vision standard protocol is a featured option in many of FastVision’s newest cameras, primarily in the CCD family of products. GigE provides a framework for transmitting high-speed video and related control data over Ethernet networks. GigE Vision is a registered trademark of the AIA.

GigE Vision is based on the Internet Protocol standard. The standard is trying to unify protocols currently used in machine vision industrial cameras and let 3rd party organizations develop compatible software and hardware.

Features of the GigE Vision standard:

  • Fast data transfer rates - up to 1000Mbit/s
  • Data transfer length up to 100m (some producers claim even 150m). The use of switches, repeaters or fiber optic converters can increase the length.
  • Based on established standard allowing networking with other Ethernet devices and computers.
  • Delivers a standardized environment for the delivery of new-generation, networked video applications based on switched client/server Ethernet architectures.

GigE Vision has four main elements:

  • GigE Vision Control Protocol(GVCP). Runs on the UDP protocol. The standard defines how to control and configure devices. Specifies stream channels and the mechanisms of sending image and configuration data between cameras and computers;
  • GigE Vision Stream Protocol(GVSP). Runs on the UDP protocol. Covers the definition of data types and the ways images can be transferred via GigE;
  • GigE Device Discovery Mechanism. Provides mechanisms to obtain IP addresses;
  • An XML description file based on a schema defined by the European Machine Vision Association's GenICam standard. A datasheet that allows access to camera controls and image stream.[7]
   

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