BNWAS Bridge Navigational Watch Alarm System as per IMO MSC 128(75) monitors the officer’s on the watch presence in Wheelhouse under sea going condition.
SELMA Bridge Inspector – Simplified Version is a version of BNWAS developed by SELMA for Light Crafts and small tonnage vessels with basic features:
Touch Screen Technology
PLC Control Type System
Autopilot NMEA 0183 / Dry Contact Auto Mode Activation
Heavy Duty Control Panel
Separate Alarm Messages
SELMA Bridge Inspector BNWAS Bridge Navigational Watch Alarm System main objective is to monitor the activity in Wheelhouse and identify any disability of operator which could cause marine accidents. In particular BNWAS monitors the awareness of Officer on the Watch (OOW) and automatically alerts the Master or another qualified OOW if for any reason the OOW becomes incapable of performing the OOW’s duties. Consequently a sequence of warning, indications and alarms alert first the OOW and if he is not responding then alert the Master or another qualified OOW. SELMA BNWAS Bridge Navigation Watch Alarm System
Additional the BNWAS may provide the OOW with a means of performing Emergency Calling for immediate assistance if it is demanded.
It is important to be noted that the BNWAS should be operational whenever the Ship’s Heading or Track Control System is engaged and generates valid NMEA 0183 Signal according to IEC 61162, unless inhibited by the Master.