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A video wall controller (video processor) is an industrial computer or server that provides the formation of a single picture on the screen (panels). The latter is achieved by synchronous processing of incoming video signals from sources. Every professional video wall requires such a device. Let’s find out what to look for when choosing it.
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irst, you need to know which video sources will be displayed on the screen. For signals from digital and analog sources, you will need a graphics controller. For high-resolution online signals, the sources of which are the Internet or a local computer network – network.
Secondly, consider the need to configure the controller in accordance with the number of broadcast video sources and displays. So, if you have a 3-by-3 video wall, then the image should be broadcast on 9 LCD panels.
Thirdly, decide which device design you need. A monoblock controller is suitable if the video wall screen will display an image from one source. It is a regular Intel server. In the case when there is more than one source, give preference to a distributed controller. It is a system of several autonomous servers on which the video signal is processed and interconnected by a common control system.
It is worth paying attention to the control capabilities of the controller. Some devices are based on Windows and support interaction with the video wall using a mouse and keyboard. Others make it possible to display an image using mobile devices (phones and tablets on Android). There are also models that can be integrated with control systems such as Crestron, AMX, etc.
The controllers are used in control rooms, large conference rooms and situational centers. It is difficult to do without these devices if it is necessary to provide:
- flexible and prompt display of information from different sources;
- remote information management via local network;
- displaying information with a high degree of detail (for example, cartographic);
- for video surveillance and playback of streaming video (YouTube);
- display of production processes.
Unitsolutions is a distributor of controllers and professional video wall panels. In our online store you can choose and buy a video wall in Moscow with delivery and installation.
Installation of video wall panels
A video wall is a structure made up of several panels of different sizes or the same, which serves to transmit information. Its installation is not such an easy task as it might seem at first acquaintance.
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Installation of video wall panels can be wall-mounted, floor-mounted or suspended. Before choosing one or another type of installation, it is worth knowing their following parameters – the type of matrix, dimensions, frame width, since the installation method will directly depend on them. For example, projection cubes are usually placed about 80 cm from the wall of a building. The gap will be necessary to connect and service the rest of the equipment. This will make it easier for you to position the video wall controller and cables. LCD displays can also be installed at a smaller distance from the wall of the building. Due to the features of the supporting structure, they can be lifted up. Thus, the internal space of the video wall will become accessible.
The supporting structure on which the panels will be placed must meet the following requirements:
- welding-free and simple installation at the selected site.
- the standards of accuracy in the manufacture of elements, as well as fire safety, are observed. The supporting structure must have minimal play, and its metal elements must have a fire-resistant paint coating. It is important to ensure minimal distortions and butt joints between the panels.
- a large margin of safety, which is determined by the load capacity of the structure. This is especially important when operating in seismically active areas.
In any case, it will be designed for a specific task.
When developing a project for placing a video wall, it is worth relying on current standards for ergonomics and labor protection. For example, you need to calculate the distance at which the screen will be located to the people watching. Thus, a more convenient perception of information will be provided. This is extremely important for employees of dispatch centers and situational centers, whose work is associated with a high level of responsibility.