Harbour Entrance / Fixed Point Protection
The reliable detection of underwater targets in the acoustic environment of a harbour is a well known problem. Constant vessel traffic, noise from continually active depth sounders and a complex thermal structure typify this scenario.
Sentinel has been specifically designed to cope with these adverse conditions and is capable of tracking thousands of targets in real time with only genuine threats causing an alarm that the operator or observer need react to.
Mounted in a either a seabed frame looking upwards or on a permanent harbour wall mount looking across the entrance, Sentinel is easy to install and configure for autonomous operation from a remote monitoring station.
Networked Port Installation
Under the International Ship and Port Facility Code (ISPS code) it is vital to ensure protection against foreseeable events. Sentinel has been designed to operate in a stand-alone or networked mode with multiple sonar heads to enable complete protection of assets within the security zone.
The commercial off-the-shelf (COTS) based processing units can facilitate up to 10 sonar heads per command station, offering a cost-effective solution to large area coverage. The overlay will increase the level of domain awareness in an estuary, coastal environment or complex port and can be totally integrated into a central command system with above water surveillance.
Sentinel’s unique detection, classification and tracking software has been proven to operate in the harshest environmental conditions including ‘brown’ water, noisy, shallow, tidal harbours where vessel activity results in a lot of disturbance in the water column.
Sentinel’s compact size and lightweight design make it a practical solution for rapid mobilisation to meet an evolving threat. With minimum storage requirements, the Sentinel system can be carried on board as part of a mobile or expeditionary security unit, providing a secure underwater perimeter for high value assets.
With the sonar head weighing under 30kg it can be deployed over the side of the vessel or from a jetty by one person using only minimal equipment. Sonar processor and command workstation set-up is an equally simple task with the full system typically configured and online in under 30 minutes.
Providing wide area coverage, Sentinel is designed to provide secure underwater perimeters for both military and civilian assets. These include: naval vessels at anchor in overseas ports, cruise liners in harbour and super yachts moored off the coast.
The threat of insurgency, vandalism or criminal activity is not restricted to ports or military assets. Any oil and gas installation, whether coastal or offshore, is extremely vulnerable to attack from below and represents a significant threat to a region’s energy supplies Sentinel’s open system architecture allows integration of the subsea security zone with conventional terrestrial security systems, including thermal imaging, radar and ground sensing devices.
Sentinel has been developed from the outset with flexible deployment in mind. It can be mounted from a pole based deployment system, suspended from its combined signal and power cable or mounted on the seabed. Considerations such as ease of installation by divers in low visibility have been taken into consideration in the Sentinel system from the very beginning. Sonardyne has a proven track record in deployment systems and can recommend the most appropriate solution.