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Safe and sound stadia

A large sports stadium is divided into public and non-public areas, each with specific zone requirements.

The public areas include the arena seating, parking garage, access roads, entrances and corridors, restaurants, food and beverage corners and IP boxes. Non-public areas include the changing rooms, offices, and other facilities such as treatment rooms and restaurants. Furthermore, stadia often house additional businesses like offices and shops. A control centre and a security room have access to the sound and voice evacuation system.

Introduction

Praesideo is the perfect solution for larger applications with many zones such as stadia. It handles message routing, public announcements, emergency voice evacuation, commentary for events and background music. The system's daisy-chain network topology enables equipment to be located wherever it is required, and facilitates expansion without the need for re-wiring. Praesideo also features advanced signal processing to optimise speech intelligibility.

Solution

Praesideo equipment racks are distributed throughout the stadium and interconnected via optical cables. The main equipment rack is in the control centre with a 24-channel mixer desk, call stations, wireless microphones and background music sources. Power amplifiers are located in rooms at either side of the stadium, allowing shorter conventional cables to the loudspeakers.

Built-in supervision and redundancy, including a redundant system bus and class-A loudspeaker loops with digital line and loudspeaker supervision.

System description

The total Praesideo System comprises a network controller, audio expanders, multichannel interfaces, power amplifiers and call stations. The Praesideo Network Controller manages the public address and voice alarm functions, and is connected to the stadium's fire detection system. For zones that do not require specific sound processing, a multichannel interface in combination with Praesideo class-D Power Amplifiers is used, resulting in a flexible and more cost effective solution.

Clear user interface

The control centre and security room are equipped with a fireman's call station and a touch-screen controlled call station with a graphical user interface. This type of call station is simple to operate for stadium personnel and provides a clear overview of the system's status.

TÜV certified

Praesideo is certified by TÜV for IEC60849, the international standard for voice alarm systems.

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