Data radio systems for highest safety requirements
Visitors of musicals and show events but also of theatre and opera performances have high expectations with regard to vivid stage action, frequently also enriched with a little bit of “thrill“. Attractive effects of sound, lighting and above all motion optimally coordinated with each other are the prerequisite for positive visitor acceptance. A well-known example for this is the Helene Fischer Show Farbenspiel with the “flight of the bird“ above the audience. Essential for the success of such events is stage technology acting in secrecy, rightfully considered to be a particularly sophisticated segment of automation technology. Control units, converters, drives, sensor systems, interfaces, communication technologies and radio technology, all these typical automation elements taking effect behind, above and under the stage. Planned and implemented by special companies of plant engineering and construction – such as for instance Fülling+Partner Ingenieurgesellschaft GmbH – as well as tested and approved according to international safety standards, stage technology is the prerequisite for economic success of an entire industry! And for many years, the radio module DATAEAGLE® of Schildknecht AG has also been part of this “elite“ of automation components, providing for safe, wireless controlled motion sequences on stage and even in the audience area.
The particular challenge to any stage technology is the combination of highest security for all persons on stage and where applicable in the audience area while guaranteeing an exact and trouble-free course of motion effects according to direction requirements. For this purpose, system components are subject to time-critical motion without trailing cables between e.g. control unit and drives becoming visible for the audience or even hindering actors on stage. This challenge is even enhanced as soon as performance is moved to another venue and therewith other, maybe narrower location. Therefore, the entire stage technology including transmission paths for power supply and control signals must be capable of flexible configuration without trailing cable connection and of complying with the requirements to functional security (Safety Integrity Level, SIL) at any time. For radio technology applied as cable substitute consisting of transmitter, antenna and receiver this represents a considerable challenge: it must – regardless of the respective spatial conditions –guarantee highest operational safety and availability.
All technical components are monitored and controlled from backstage. That is where the central control unit including the DATAEAGLE radio master is located usually.
2 DATAEAGLE Slave
The DATAEAGLE radio slaves are located decentrally at the moving parts like here inside the stage elements.
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The DATAEAGLE 3000-A series from Schildknecht AG for Wireless Profibus has been specially developed for the transparent transmission of Profibus DP using various radio technologies. The use of our patented filter technology guarantees a high-availability and reliable radio connection. All devices that have a Profibus DP interface can be connected by radio. Transmission speeds of up to 1.5 Mbit / s are supported.
The Dataeagle 4000 series for Wireless Profinet has been specially developed for the transparent transmission of PROFINET IO using various radio technologies. All devices that have a PROFINET IO interface can be connected by radio. The DATAEAGLE 4002 series also supports safety-related devices with PROFIsafe for PROFINET IO.
Safe “flight“ of Helene Fischer by DATAEAGLE radio module
Behind the scenes, the entire technology – including the flight of the bird – is controlled and monitored. There is also the DATAEAGLE radio master. Through this rail construction, the bird becomes “flightable”. The complete power electronics as well as the slave of the data transmission system DATAEAGLE for the wireless data transmission is part of the process. With a DATAEAGLE 3000 (Wireless PROFIBUS) the fantasy bird is controlled, on which Helene Fischer flies over the spectators during their concerts …