LED video walls for control rooms and situation centres

A control room or situation centre is a place where the screen is watched for a whole shift, not half an hour. What is needed is not a bright shop window but a seamless canvas holding a city map, a dozen cameras, load charts and the duty summary at the same time. An LED video wall is assembled in any size and proportion, there are no bezels between modules, and no joint cuts across the middle of a map the way it happens on a wall of monitors.

KazLedPro has worked with LED screens since 2012. Our portfolio includes situation centres in Kazakhstan and beyond: ENOC in Dubai (P1.53, 20 m², 2022), the Dubai Police command and control centre (P0.93, 48 m², 2023), the assembly hall of the National Security Committee building in Taraz (P2, 2021) and the Border Academy of the National Security Committee in Almaty (2022). Model selection, steel structure, installation by our own crew, commissioning and service come under one contract.

Our module stock is in Almaty and we work across Kazakhstan with a travelling crew: more than 1,000 projects, 62 of them with photos on the site. Canvas size and resolution for your operator seating can be estimated with the calculator on the site, and a commercial proposal with the equipment list and video processor is ready within a day.

Pixel pitch and brightness for an eight-hour shift

An operator sits two to four metres from the canvas and reads text off it rather than watching a video. So the pitch is finer than in a conference hall: P0.93 in COB technology gives 1,137,778 dots/m² and a comfortable distance from one metre, P1.53 gives 422,500 dots/m² and a distance from two metres, while P1.86 and P2 suit the far wall of a large room. Close seating is exactly why the Dubai Police command centre runs P0.93 and the ENOC situation centre runs P1.53.

Brightness in a control room, by contrast, is turned down. The rated 350–600 cd/m² is held at 30–40 per cent: the eye is not tired by the end of the shift, and maps and tables read without halo. A refresh rate from 3,840 Hz removes flicker when a log is photographed on a phone or shown over a video call. Viewing angles are 150 by 150 degrees, and 160 by 160 on COB models — the end workstations see the same picture as the central ones.

• Front row closer than two metres — P0.93 COB with a solid front surface
• Operators at two to four metres — P1.53 or P1.86
• A large briefing room next to the centre — P2 and coarser
• Working brightness at 30–40 per cent of rated, refresh from 3,840 Hz

Multi-window processor, sources and redundancy

A video wall in a control centre runs on a video processor with a multi-window mode. It gathers the GIS map, camera windows, an operator desktop and a browser dashboard onto one canvas, and layouts are stored as presets: the duty view, incident review, a briefing for management. Presets switch with no black frame — during an incident review the canvas must not go dark even for a second. Inputs are standard HDMI and DVI, so a surveillance server and an analyst workstation connect directly.

Round-the-clock operation needs margin. The design includes duplicated power and signal: two lines from different phases of the board, a backup video processor or a spare input, and a looped signal path across the receiving cards. The number of signal and power feeds is calculated from the resolution and load of the canvas and issued as a technical specification for the site electricians before delivery.

Round-the-clock service, installation without stopping the centre

Rated LED life is from 100,000 hours — eleven years of continuous operation, and at reduced brightness degradation is slower. Cast-aluminium cabinets are serviced from the front on magnets: a module comes off a working wall in a minute, no rear access is needed, and the video wall can sit flush to a solid wall with no service corridor. Cabinet depth is 36 mm on P0.93 and 65 mm on the 640×640 series, weight from 4.3 to 16 kg — the structure hangs on a wall or a stand, and the floor needs no reinforcement.

COB models are practical where people walk up to the screen: the dies are encapsulated in compound, the front surface is solid, it can be wiped and survives an accidental knock with a shoulder. Consumption on P0.93 is 300 W/m² peak and 100 W/m² average; on the 640×640 series it is 800 and 320 W/m². In a live centre we install within an agreed window: at night, shift by shift, or section by section, so the duty crew is never left without a picture.