Look back on the best moments
Delivery Date: October 1, 2009
Venue: Tian’an Men Square
Contract Value: GBP 3.3 million (3 rehearsals and 1 official display)
Crew: 90 members
Equipment: 18 sets of PYRODIGITAL firing system, including 18 controllers, 72 splitter boxes, 1620 modules, 30000 electronic igniters, enabling 25, 920 ignitions per display; synchronization via wired time code transmission system
Equipment: 18 sets of PYRODIGITAL firing system, including 18 controllers, 72 splitter boxes, 1620 modules, 30000 electronic igniters, enabling 25, 920 ignitions per display; synchronization via wired time code transmission system
In consideration of the animation effects and fireworks’ recoil force and explosion radius, the displayer chose specific products of eruption and explosion effects and fix them onto the network screens. To make sure neighboring fireworks would not be affected by each other, they also designed some special small “bowls” (less than 5cm in diameter) to contain the sprouting and exploding effects. Choice of products and such special technical designs made possible three dimensional demonstrations.
The displayer divided each painting into 10,000 units and increased the ignition frequency from 1/100s to 1/1000s. Meanwhile it came up with an innovative technology of laying electronic igniters and fuses in parallel and keeping them at same firing speed. Exact control of firing timing and sequence of over 80,000 shots of fireworks gave life to the paintings and realized animation effects.
The shortest distance between 2 paintings was only about 0.5m that can very easily cause accidental ignition of fireworks. Through repeated tests, the displayer designed a special fireworks tube with an extra fireproof film so that even when spilt with sparkles, the effects would not be ignited.
Solution: Each of the three 2250 m2 fireworks paintings weighed nearly 4 tons and was attached with about 80,000 shots of fireworks, but they only had four hours for on-site installation. In order to meet the time limit, they fixed the network screens into 3 huge frames (each 30m long) in advance. Each frame with its network were packed, transported and installed as a whole.
Upon arrival at Tian’an Men Square, the 3 paintings were lifted by 6 cranes at a speed of 1.3 metres per minute, while 90 pyrotechnicians, 2 meters from each other, were standing on both sides to splice the 9 parts of the paintings with iron wires and conduct final check of fireworks installation. In this way, on-site installation were completed in only four hours.
The project used 240,000 electronic igniters, 30,000 ignition units, 600,000 meters of cables onto the 6750 square meters of network screen, which means in every square meter there were more than 35 fireworks tubes and igniters and all technicians had to move around like walking steel wires. Despite that, throughout the process, there was no single safety accident, no damage to network or fireworks, nor there was any firework or cables installed incorrectly. At the Tian’anmen Square, the displayer used less than four hours to lift, splice, cable and test the three huge fireworks structures.
As the displayer of fireworks paintings, it had been involved in relevant concept and technical design, in particular that of “Beautiful Homeland”, since March of 2009. Together with the director and his team, the displayer successfully fulfilled the transmission from video simulation into actual display. They collaboration extends from R&D of fireproof products, to fireworks layout, calculation of ignition frequency, display design, installation mapping, and layout of firing system. In addition, they displayer also participated in design of musical fireworks show at Tian’an Men Square.
Three 3-dimensional animated fireworks paintings