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3.3 Resetting dormant period
The purpose of the bridge navigational watch alarm system (BNWAS) is to monitor the operator
motions in the bridge and detect any behavior disorder.
By doing the reset operation in dormant period, this system judge that the operator is normal.
3.3.1 Checking dormant period
The dormant period is displayed with a numerical value (minutes/seconds) of the countdown
timer and a bar graph of the countdown bar on the LCD display unit (NWZ-4650). ① is bar
graph , of which one piece corresponds in 1 minute. A value of ② displays with minute, ③
displays with second. Before the dormant period will be 0 minute and 0 second (00:00), perform
a one method of the following reset operations.
3.3.2 Reset operation
The reset operation, the following three methods are available.
1) Using push-button
Press any button of LCD display unit (NWZ-4650), or press a reset button switch of the
reset button units (NCJ-895) or the reset button unit (Waterproof) (NCJ-896).
2) Automatic resetting with the motion sensor
With the motion sensor reset device (NYG-5), it is possible to reset the dormant period
automatically by detecting human actions with infrared rays coming from its human
bodies.
3) Resetting with the operation signals from other navigation equipment
It is possible to reset by inputting the operation signals (contact signal or NMEA
sentences) from other navigation equipment such as radars, ECDIS and so on.
However, BNWAS whose software version is after V1.01 does not reset on and after 2nd
stage alarm. If track balls of ECDIS / MFD are moved a little, EVE sentences may output
and BNWAS reset the timer. In spite of ship crew confirmation not done, BNWAS have
possibility to reset the timer. New software version BNWAS resets before 2nd stage alarm
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