"The assembly of dispersed LED pixels to form very large video images has been with us for some time," explained Frederic Opsomer, CEO of Tait Technologies, who drove the development of this new device. "But never before has it been done on such a scale, and with such organic animation." Opsomer is referring to the fact that the LED Pixel Tablets were placed firmly in the hands of the opening ceremony audience; all 70,500 of them.
"Little box or big box, it's all the same challenge," said Opsomer, "To work for such an event, the product has to be waterproof to IP65, safe to use, durable. With so many in use, it also has to pass the most stringent EMC testing. The LEDs themselves are extremely durable; we might expect them to work for ten years in continuous use. Because the Olympics placed a firm focus on sustainability we have designed this product with an afterlife in mind."
The cabling infrastructure for the Olympic stadium was some 370km, and was installed by a local crew of 10 within five weeks. The total system installation took just ten weeks with five technicians and six local crew members. Because of the nature of its use over the eight week period of the Olympics, the system was installed as a permanent installation. However, rapid deployment options are available for shorter, temporary installations.
Logistically this was big undertaking, "The backbone of the system is based on the tried and tested Barco FLX platform," continued Opsomer. "Tait has invested in their drivers and control, Barco delivered the PCB; the design, manufacturing and assembly of the tablets was provided by Tait. Testing at the independent EMC laboratory in Belgium was exhaustive, but it had to be; the implications of seventy-thousand plus devices for the RF environment are of potential nightmare proportions."
The pixel mapping of the content into the stadium runs on the Ai Infinity Server from Avolites/Immersive. Opsomer says, "We chose Ai from Avolites because of Avolites substantial and long history in the field of entertainment; and quite simply this is one of the only server systems that can handle mapping on such huge scale. The Olympics was a one shot event, it had to be perfect, and the strength of the company reputation is reassuring to all those involved. Managing this volume of mapping is easy with the Ai software."
Content for the pixel tablets was provided by Crystal CG, the official digital imaging services provider of London 2012 Olympics. "It was an absolute pleasure to work with Crystal as a content provider for this project. Content is such an integral part of the viewer's experience and the content provided really showcased our system to the highest ability," says Opsomer.
(Jim Evans)
