GigE Vision

GigE Vision is a mid-2006 of adopted interface standard from the industrial image processing. It allows easy connection of industrial cameras to existing network systems through the use of Gigabit Ethernet standards.

Formation

The default arose from a committee of about 50 companies that were 12 initiators Adimec, Andor Technology, Atmel, Basler, Cyberoptics, Dalsa, JAI A / S, JAI PULNiX, Matrox, National Instruments, Photo Focus, Pleora Technologies and Stemmer Imaging. The Automated Imaging Association ( AIA) oversaw the development. GigE Vision is a registered trademark of the AIA.

GigE Vision is based on UDP / IPv4 and aims to set maximum compatibility between camera, hardware and software manufacturers to ensure itself. The standard itself is not open to the public and open only to members of the AIA. One consequence of this is that only AIA members can develop GigE Vision compliant products and so, unlike for example in DCAM, no open source implementations possible.

Properties

Features of the GigE Vision standards:

  • Cable lengths up to 100 feet without amplification, more than, say, Firewire, USB or CameraLink;
  • Based on existing Ethernet standards and existing hardware and software.

The GigE Vision standard basically consists of four elements:

  • The GigE Vision Control Protocol ( GVCP ). Uses UDP and defined as a device to respond is. Specifies data channels and mechanisms for the transmission of images and configuration data between the PC and the camera;
  • GigE Vision Stream Protocol ( GVSP ). Specifies the different data types and modes of transmission in order to transfer images. For transmission, UDP is used. But GigE Vision itself contains the optional possibility of Packet Resend to fix transmission errors;
  • GigE Device Discovery Mechanism. Includes locating cameras in the network;
  • An XML file that contains a description of the camera, based on the GenCam standard. Allows access to camera data and images.

Even if the default relates directly to Gigabit Ethernet, Ethernet, any variant can be used.

Benefits

The standard offers several advantages over the existing connections, such as Camera Link or Firewire. By using Gigabit Ethernet technology can be used on conventional network cable, which in addition to the longer range and lower cost means. Another advantage is that the required network cable can be made at installation in inaccessible places on site.

With the GenICam standard uniform software interface is defined. This enables vendor-independent to develop software that can use any GigE Vision cameras.

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