Evacsound is a distributed evacuation assistance system for tunnels, mines and industrial passageways, combining directional audio, public address messaging and lighting effects.
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Sound-based directional cues help guide people towards safety during tunnel evacuation.
Precisely synchronized nodes deliver consistent sound across tunnel spans while minimizing echo and dead zones.
Supports sensors and external devices for fire, incident detection and video surveillance.
Built-in MEMS microphones enable bi-directional communication, with an optional external button for call-point operation.
Supports Cat6 Ethernet, PoE or 24–48 V DC power, with options for external sensors and lighting.
Fire incident detection for localization of fire and evacuation assistance system. The node can be supplied with camera for video surveillance.
Evacsound supports sensor acquisition for fire, incident detection or video surveillance. The system uses 21st century technological innovations to deliver psychoacoustic direction in evacuation, Public Address messaging and lighting effects in cost-effective way.
Psychoacoustic effects provide non-verbal evacuation direction in low visibility situation such as blackout or smoke. The effects were independently assessed for effectiveness in live trials. Directional lighting effects can provide additional cues.
Each node is a networked industrial computer system in a fire retardant, sealed polycarbonate enclosure. Either side is equipped with directional speaker array allowing for efficient sound energy delivery and actualization of biaural acoustic effects. Together with precision synchronization between the nodes it allows for supreme audio quality in whole spans of tunnels with minimized echo, dead zones and overlap.
Depending on the mission, Evacsound can be delivered with a range of specialized front panels and external devices. Options include (but not limited to) temperature, humidity, pressure, camera, doppler radar, geophone, accelerometer and chemical sensors.
EvacsoundNodes are equipped with sensitive MEMS microphones, allowing for automatic placement and site calibration. No specialist installation procedures are required. The built-in microphone allows the operator to initiate a bi-directional conversation at any node of their choice. Equipped with an external button, each node can double as call point speakerphone.
Evacsound can effect built-in dichromatic lights or external lighting.
Networking is provided over Cat6 Ethernet lines. Evacsound can be powered via PoE 802.3bt Type 3 compatible switch. Alternatively, a separate 24V to 48V DC power supply can be used. Device power budget is 50W at peak consumption. SPL at 1.5m height in a 9.5m profile tunnel up to 99dB. Best in the class STIPA performance.
Protected by patents US 11218825, NO 345184, EP 3629604 B1, NO 348081
EN 50121-4:2016/A1:2019 – Railway Applications
EN 55032:2015 AC:2016, EN 55035:2017 AC:2019 – Electromagnetic compatibility of multimedia equipment
EN 60529:1991 + A1:2000 + A2:2013 – IP66 – Dustproof and waterproof
EN 54-16 – Voice alarm control and indicating equipment
EN 60068-2-27: – Mechanical shock (10G in 3 axis)
Evacsound is designed to integrate with tunnel infrastructure, supporting external sensors, lighting systems and network connectivity for evacuation assistance.
Connects via Cat6 Ethernet and supports PoE 802.3bt Type 3 or 24–48 V DC power.
Supports external devices for temperature, humidity, pressure, video surveillance and other environmental or incident monitoring applications.
Controls built-in dichromatic lights or external lighting systems to provide additional visual cues during evacuation.
Nordøyvegen is a mainland connection between the northern islands and the mainland in Ålesund municipality, Norway. The project consists of day facilities, bridges and three underwater tunnels. The Haramsfjord tunnel (3500 m), the Fjørtoftfjord tunnel (3680 m) and the Nogvafjord tunnel (5730 m).
Transport & Tunnels
Fjellsdalen 3
5155 Bønes, Norway
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