Page 126 - Electronic Navigation Cyber Book

An integrated bridge navigation system is generally connected to
• Autopilot

• Radar
• Gyro

• Position fixing systems
• ECDIS

• Power distribution system
• Steering gear

An alarm system links all the above mentioned systems and gives out
audio and visual signal in case of any emergency condition. (There
can be more systems connected to the IBS and to the alarm system)
In most ships, an additional alarm connected to the IBS is also fitted
in the cabins of navigational officers. This alarm provides a signal in
the cabins within 30 seconds in case the officer in charge fails to
acknowledge an alarm.
Though IBS is an excellent system for navigation, officers on watch
shouldn’t completely rely on the equipment but should pay proper
attention to visual navigational watch keeping techniques as well.
Also, proper guidelines should be provided on the bridge manual as
to when to use and when not to use the Integrated Bridge System
(IBS).
IBS is not mandatory on ships.

System Components
The term “integrated bridge” encompasses several possible
combinations of equipment and software designed specifically for each
individual vessel’s needs. Therefore, each integrated bridge system is
different. This section introduces, in general terms, the major equipment
likely to be found in an integrated bridge system.

• Computer Processor and Network: This subsystem controls the
processing of information from the ship’s navigation sensors and the flow
of information between various system components. It takes inputs from
the vessel’s navigation sensors. Electronic positioning information,
contact information from radar, and gyro compass outputs, for example,
can be integrated with the electronic chart to present the complete
navigation and tactical picture to the conning officer. The system’s

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