Bosch Building Technologies has installed a digital public address and voice alarm system – Praesensa, at the Telford Shopping Centre, located in Telford, in the United Kingdom (UK).
On 25 acres of commercial space, the IP-based Praesensa system from Bosch now provides music, announcements, and emergency alerts for retail stores, restaurants, as well as hotels and a cinema, located in the shopping mall.
Future-proof and IP-networked solution
The shopping mall operator was looking to upgrade the existing public address system with a future-proof and IP-networked solution for retail environments with two key requirements: Heightening the centre’s sustainability and energy efficiency while keeping costs for the upgrade low.
Working with these requirements, Bosch’s security partner - North AVS refurbished all existing loudspeakers installed at Telford Shopping Centre, across 16 zones via minor modifications on the end lines. As a result, system integrators merely needed to replace the obsolete control equipment – including a cumbersome call station with analog buttons – and amplifiers.
Managed via OMNEO media networking technology
The software-based system combines live broadcasts and recordings from various media sources
Since the cost-effective upgrade, the security staff working at the Telford Shopping Centre can now control the public address system via an intuitive touch screen interface. Managed via OMNEO media networking technology, the software-based system combines live broadcasts and recordings from various media sources. The library includes background music in MP3 format, commercials from a message database, plus end-of-day mall closing messages on automated schedules.
Automation also kicks in during an emergency, for instance in case of a fire, targeted to specific zones on the property, wherein the public address system integrates with the fire alarm system to play pre-recorded alerts and evacuation messages. Leaving full control to security, personnel can send live voice messages and manually trigger the evacuation protocol, as needed at any time.
Sustainability and energy savings
The second main project parameter consisted of energy efficiency. As the latest in a long line of public address systems, the IP-based Praesensa system achieves a low energy footprint via smart power partitioning across amplifier channels.
The software adapts intelligently to loudspeaker loads and divides the available output power across all channels, so as to a maximum of 600 watts. This built-in function significantly lowers overall power usage over the system’s lifetime, especially in the idle state, where most systems spend most of their time.
Minimised form factor ensures low energy footprint
Requiring less battery standby, the system can run on only two batteries that need changing every four years, according to British standards. Also contributing to the system’s low energy footprint is the minimised form factor. While the legacy system occupied two rack spaces in the server room, the new solution cuts the size in half.
This is achieved by integrated standby amplifiers that reduce the cost – especially for cooling – and space of the rack housing. This also provides an effective redundancy measure. Praesensa also delivers automated fault notification to the control desk within 100 seconds, thereby meeting EN54-16 standards for public address systems.
Fully secure IP solution
Speaking of standards, the system meets the latest data protection guidelines, as a fully secure IP solution
Speaking of standards, the system meets the latest data protection guidelines, as a fully secure IP solution. All control equipment is connected via Secure IP out of the box. Safeguards include encryption and authentication for complete protection against eavesdropping and hacking.
With immediate cost savings in a future-proof, user-friendly, flexible, and scalable package, the system is generating interest and positive user feedback from shopping mall operators globally.
Reliable and efficient IP-based system
Chris Titley, the Facilities Manager at Savills, stated “We were very pleased with the installation of the equipment by North AVS, which caused minimal disruption and they also managed to keep us operational, while the shopping centre was open.”
Chris Titley adds, “We are extremely happy with the quality and operation of the new Bosch equipment and the team are finding the system easy to use. It´s of paramount importance to have a reliable system and this is definitely ticking all the boxes.”