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Cinimod Studio provides a new interactive lighting control system for the National Stadium of Peru, which uses light to create a visual connection between the fans and the sport by tapping the mood of the group.
Working with international teams including CAM, Peru's ArquiLEDS, Germany's e:cue and Hong Kong's Traxon, Cinimod Studio has created a cutting-edge sentiment analysis system that controls the stadium's exterior lighting.
Using the combination of innovative technology and lighting layout, various lights are injected into the stadium's exterior to make it a “mirror†that reflects the audience's emotions. This is probably the largest interactive lighting display in the world controlled by the audience. The stadium conveys the ups and downs of excitement or disappointment to the surrounding cities.
Lighting output
The solution for external lighting is to seamlessly integrate design within the architectural framework to provide a lighting pattern that describes the media's appearance of the audience in the venue.
The size of the stadium's exterior requires a very large array of color and pixel-addressable accessories. These accessories are all supplied by Traxon Technologies, which specializes in high quality architectural LED lights. The overall installation of the accessory is connected to the e:cue architectural lighting control system, and e:cue provides 62 channels required for DMX lighting control output.
The entire exterior lighting control system consists of two main components: Cinimod's interactive sentiment analysis system and e:cue's lighting control system. These two parts work together to deliver an evolving, mutually responsive lighting display on the exterior of the building. 
The challenge of the project was to develop a customized, reliable solution that would faithfully convey Cinimod's ambitious plans for an interactive lighting control system. Using technology transfer from related industries, Cinimod has developed a sophisticated emotional analysis system for the stadium project.
Crowd noise level map
A series of custom noise meters (microphones) are installed on the stadium's roof line to depict noise level dynamic maps, which are then processed by Cinimod's processing hardware and software in the venue's main communication room.
Emotional analysis
The Cinimod software was developed for real-time sound intensity data processing of the project, and a series of mathematical comparison calculations and analysis were performed by a self-calibration algorithm. The output of software is an "emotional state" that reflects the collective emotions of the masses.
The sentiment analysis software continues to run uninterruptedly to measure the mood of the audience. It passes the determined emotional state to the e:cue lighting controller, which in turn sends the relevant DMX control signals to all lighting fixtures.
For more information, please refer to the June issue of "High-tech LED-Technology and Applications" magazine. 
[Source: "High-tech LED - Technology and Applications" June issue]