1. INTRODUCTION
Alarm Monitoring and Watch Safety System (AMWSS)
is intended to centralize all bridge and other
important alarms to one position on the bridge and to monitor watchkeepers activity as well as to ensure
his well-being.
The system operation is divided in two independent Programmable Logic Computer (PLC) systems, one
taking care of Alarm Monitoring and the second one to take care of Watch Safety System. The PLC for
Watch Safety System is also generating an independent "Off course" monitoring, "Gyro mismatch" and
"Magnetic compass compare" functions.
Both systems are described in the drawing below.
Fig. 1 Block Diagram
