Tuesday, 21 January 2014

LCD Video Walls for Control Rooms



Operations in the command and surveillance sector are incomplete without a modern videowall. Any mission-critical operation that depends on receiving and transmitting information by way of visual data, should do so with a true video wall rather than with individual displays.
High-definition LCD displays with ultra thin bezels are fast gaining popularity because they offer outstanding visual clarity, near-seamless installation, and hassle-free service life. Thus, it is common to find LCD videowall systems in applications such as military, emergency monitoring, traffic monitoring, security and surveillance, and process control, to name a few.
The most attractive characteristics of modern LCD videowalls are lower initial purchase price and simplicity of operation and maintenance. For the uninitiated, the bezel is the rim around an individual LCD screen. An ultra thin bezel is preferred as it makes a tiled video wall look like a single, seamless screen.
An LCD video wall is easy to set-up and easy to operate. Here’s an overview of modern LCD videowall features.
• High-definition (HD) is standard for both consumer and control room applications. Video wall systems should include HD LCD displays, controller, mounting apparatus, racks and a system control method. If needed, the videowall can have an optional integrated sound system that goes beyond the built in speakers that come with most LCD panels on the market.
• Data is sent to the displays from computers through the videowall controller, which is the brain of the system. This can be accomplished by connecting individual computers to the videowall controller, or by way of an Ethernet connection accessing the computer network.
• You can simultaneously access the internet, camera feeds, TV, video conferencing and data sources.
• The videowall controller allows the operator to size and place images anywhere on the entire video wall. This is possible because the video wall controller does not “see” the videowall as individual displays; it sees the video wall as one palette, or a single screen, no matter how many screens are included in the matrix. The videowall controller is operated by a keyboard and mouse, or an optional programmed touch panel control system.
• Videowall systems should be sized to fit the wall space in both width and height. The videowall displays can be either mounted on the wall, or installed in an integrated free-standing enclosure. A free-standing system has advantages over wall mounting because all components are in one place and can be easily expanded or relocated.

In closing, if you decide to invest in a modern LCD videowall, select a professional firm that deals in video wall systems integration that can help you with ideas, cost estimates, and eventual product configuration, testing, installation, and operator training.