Electronic Systems and Computer Technology - Decreasing Fuel Consumption and Exhaust Gas Emissions in Transportation - page 101

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charging air pressure sensor
temperature sensor
oil pressure sensor
combustion sensor
control and sensor supervision
single control unit
required value

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interface
propeller
engine
impulse receiver
switch
alarm
diagnosis device (OBD) interface
controlling device (OBD) interface

Fig. 6.5 Digital electronic bridge system

monitor the state of the sensors and to regulate actuators such as stepped motors,
electro-magnetic and electro-mechanical valves, piezo switchers, and pneumatic
and hydraulic cylinders, etc., from the bridge [ 28 ].
All electronic equipment for use on ships is constructed according to sea
conditions because sea sensors and actuators can come into contact with salt water.
Therefore, the casings are produced to be corrosion resistant and waterproof.

6.4.1 Integrated Bridge System

The integrated bridge is the central element for the monitoring and steering of the
ship. The bridge receives inputs from various sensors, electronically displays the
signals, collects positioning information, and provides regulation and steering
signals required to keep the vessel on course [ 29 ].
The navigator becomes more and more a system manager interpreting the ship's
movements and monitoring the vessel's performance (see Fig. 6.5 ).
The communication with other systems, e.g., with the fuel management system,
the air conditioning, and the refrigerator monitoring system can be managed using
a standardized CAN bus system. Common interface technology makes it possible
to store data and follow error signals [ 30 ].