What is it? Well it’s a Spherical TV, Digital Campfire, Video-Globe or Dynamic Bill-ball, you decide what you want the PufferSphere® to be.
The Pufferfish exclusive spherical display solutions enable you to present dynamic visuals effectively and with unequalled style.The arresting 2 metre or 2.5 metre diameter spherical screen is inflated via a self-contained base unit, whilst the internal
projection system maps your choice of digital content onto its surface.
A major concern for Pufferfish Displays was how to control the air pressure inside the sphere. Air is supplied via a high capacity electrical blower fan. The speed of this fan was being
controlled by a manual adjustment to set and hold the pressure at a constant value, however whilst this was fine for proof of concept, it was not very practical.Pufferfish had been approached by the stage production crew for the Coldplay Vivi
La Vida Tour to supply 6 PufferSpheres® for the stage show. With only a few weeks to deliver, this inflation control problem was now a major issue.
Pufferfish called in Wilkie Electronics to solve the problem. After a couple of days we had established the dynamics and limits of what a self contained "inflation controller" would need to supply in order to inflate the sphere as quickly as possible
and hold it at a constant pressure for the duration of its use.
Within days Wilkie Electronics produced a prototype inflation controller that measures the pressure in the sphere and directly controls the speed of the blower to maintain a preset value to within 1mBar of the required pressure. The unit is microprocessor
controlled and all the circuit design, PCB layout, microprocessor firmware, product build and test all carried out exclusively by Wilkie Electronics.
The unit inflates the sphere quickly under full power from the blower and then constantly regulates the pressure inside the sphere at a preset value, usually around 6 mBar. This also means the projection focus is always optimal, the pressure is at a safe
level, and the blower fan noise is kept very low.
After about 10 days Wilkie Electronics built and supplied 6 inflation controllers that were fitted to the Coldplay units that performed as well as Coldplay did on the tour!
The PufferSpheres® were a fantastic success for Coldplay, so much so that Pufferfish were approached by one of the production teams for the 2009 Eurovision Song Contest.
Again, Wilkie Electronics built and supplied inflation controllers to be fitted to units that would end up being seen by the whole world.