The Furuno BR1000 BNWAS is a IMO-compliant Bridge Navigational Watch Alarm System, whose function is required on all IMO vessels (regulation MSC.128(75)). July 2012 was the primary fitting date for most vessels (existing passenger and cargo vessels of 3000+ GT).
Basically, BNWAS is a monitoring and alarm / alert system activated on the bridge, navigator staterooms, and living quarters, if it senses inactivity on the bridge for a predetermined period of time.
The Furuno BR1000 BNWAS monitors the watch officer’s presence through watch safety system functions. At pre-set intervals, a watch officer is required to press a Timer Reset Button or to operate navigation equipment (i.e.: ECDIS, Radar, etc.). If the officer fails to carry out any of the tasks, visual and audible alarms ensue in the wheelhouse. If no response, the BR1000 transfers the alarms to other sections of the vessel to inform backup officers.
Three operational modes are available: One-Man, Bridge Attended and Harbor Mode. The Processor Unit has 48 ports to interface the equipment onboard and watches their alarm status plus 7 ports for the operator’s presence inputs. Up to 14 Cabin Panels can be installed on a ship for notification.