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GIG-E VISION® Improves Thermal Imaging

Viento-G thermal cameras are easy-to-use thermal cameras that are packed with features and designed for use in a wide variety of laboratory imaging and thermography applications. Viento-G was specified around the GigE Vision Standard, DRS TamariskTM thermal cores, and standard connectors. The camera’s design makes it low cost and feature packed while being easy-to-use and integrate into a wide variety of applications.

Low Cost but Feature Packed

Viento-G cameras offer top-of-the-line imaging at the lowest cost-per-pixel in their class, making them ideal for use in custom OEM products and custom applications. In either of its two form factors, the Viento-G is available as either standard thermal imagers (Viento-G) or thermal imagers with thermographic data (Viento-GT).

Uncompressed Digital Video

In all Viento-G cameras – the standard Viento-G and the thermographic Viento-GT - the GigE Vision interface transfers full-fidelity, uncompressed image data to the host system. So whether you are collecting numeric temperature data for computation and analysis, performing image processing in an industrial process-control environment, or detecting small temperature changes in a sensitive imaging application, the Viento-G delivers full-frame-rate images, free of compression artifacts at resolutions up to 640 x 480 pixels. This digital video can be streamed as a color image or as 8-bit or 14-bit digital data. In addition, the Viento-GT provides a 16-bit digital mode with thermographically calibrated digital data for every pixel.

Small and Flexible Form Factors

Viento-G is available in two form factors, a fully enclosed and connectorized model and a split board set with flexible connection between the board sets.

The fully enclosed model provides standard connectors that make the interface easy to use and quick to integrate. An RJ45 connector provides the Ethernet and Power over Ethernet connection (PoE) and a SMA connector provides a GENLOCK interface for optional frame synchronization. The unit can be plugged directly into a PoE-enabled network switch, or powered via a PoE injector, so that only a single Ethernet cable is required in order to use the camera out of the box.

The split board form factor offers integrators the flexibility of installing the unit into custom applications that have strict size and weight requirements. SOTI certifies proper operation when using flex cables up to a maximum of eight inches in length between the board sets.

Thermography

Viento-GT models are thermographically calibrated to provide accurate temperature measurement over a Dynamic Range of -40°C to +550°C. Also available is the Isotherm imaging feature built in to the thermal core. DRS’ proprietary ICE-o-Therm provides users with the ability to isolate the important temperature sections of the image and configure them to be displayed, which can eliminate a noisy or unimportant image background.

Color Palettes

In color video output mode, nine different color palette configurations allow users to set the camera to their preference or to find the palette that best displays the specific scene the camera is looking at.

GENLOCK

The optional GENLOCK feature in the Viento-G cameras can be software enabled in either master or slave modes, in order to provide for precise, synchronized triggering in critical timing applications.

Image Contrast Enhancement

Image Contrast Enhancement (ICETM) allows users to drastically improve the image in low contrast scenes and fine-tune the video image quality for their scene.

Wide Array of Configurations

Viento-G cameras have the option for two resolutions (320 x 240 or 640 x 480), two different form factors (enclosed or split board) and a wide array of lenses that total to more than 40 unique configurations.

EASY TO USE AND INTEGRATE

Cabling

Even the slimmest Camera Link cables are still heavy, stiff, and expensive. GigE Vision specifies the use of standard Gigabit Ethernet network infrastructure so Viento-G cameras are able to use the same Ethernet cabling as is used in standard IT networks. While a Camera Link cable is limited by specification to a maximum run of 10m (33 ft), GigE Vision works within the Gigabit Ethernet standard, where Cat 5e cables can extend up to 100m (328 ft). Even a 300 foot long Ethernet cable is less expensive than a 30 foot long Camera Link cable.

Power

After considering the cabling that will carry video from the camera (expensive and thick Camera Link cabling versus simple and lightweight Ethernet cabling) the camera still needs to be powered. “Power over Camera Link” (POCL) systems do exist, but they are not universal across Camera Link frame grabber boards, and the Camera Link cable needs to be compatible as well – less expensive “generic” Camera Link cables may not be compatible with POCL. Instead of using POCL, many cameras have a separate power input connector, which requires a separate cable; for a camera being remotely operated 33ft away (the maximum allowed length of a Camera Link cable) if there’s no power source close to the camera, voltage drop over a long power cable can become a concern. So while Camera Link cabling limits remote operations to 33 feet, even at that short distance, powering the camera remotely can become tricky.

The Viento-G is powered via the “Power over Ethernet” (PoE) industry standard, with power supplied over that same thin, light, and inexpensive Ethernet cable that carries the video. The PoE standard specifies operation at 48V nominally and by using this standard the circuitry in the Viento-G is able to power the camera reliably over cable lengths up to the full-length Gigabit Ethernet standard of 100m (328 feet).

Deployment and Remote Operation

Since the Viento-G connects to standard Ethernet network infrastructure, in many cases, deploying a system of one or more Viento-G’s can be simple. Many facilities are already wired with Ethernet cabling and switches, and the Viento-G can plug in to those networks already in place. Even setting up a system with multiple cameras hundreds of feet apart can be much easier than it would be using Camera Link or analog video connections.

A Viento-G imaging system can be as simple as connecting a short Ethernet cable across a desk or workbench, or it might be a number of cameras spread throughout a facility or across a factory floor. In either case, the ability to leverage existing Gigabit Ethernet infrastructure, and the use of widely available Ethernet cables and network elements makes deploying the Viento-G easier than ever.

APPLICATIONS

The standard and thermographic models of Viento-G can be used for a wide variety of applications including: monitoring power transmission and switching equipment for predicting and preventing failures, early detection and warning for fires and hot spots, monitoring the quality of manufactured goods or circuits on an assembly line, medical imaging, and non-destructive testing (NDT) and non-destructive testing (NDI).

*GigE Vision® and Camera Link® are registered trademarks of the AIA.

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