Bridge Mate DP 2(MT)
Supplier: Marine Technologies
Type: MT Bridge Mate DP2
The Bridge Mate Dynamic Positioning (DP) concept is based on a distributed architecture that emphasizes both redundancy and segregation philosophies.
MT Bridge Mate DP2
A DP 2 system is composed of the same modules as a DP 1 system, but the number of modules have been increased for redundancy in order to comply with Class 2 rules. A DP 2 system will use three control computers and, typically, two operator stations. Using three control computers makes it possible to perform majority voting between the computers, and to reject a computer should it fail.
The number of IO units is typically much higher on a DP 2 system, as there will be a dedicated IO unit for each set of sensors, each position reference system, power source and each thruster. This configuration is used to provide redundancy at all levels to make sure that any single failure will not result in loss of position.
The compact design and distributed architecture makes the system well suited for retrofit. Upgrading from a DP 1 to a DP 2 system is an easy process since the same hardware modules are used for both types of systems, only different in the number of units used. Figure 2 shows a typical DP 2 configuration, where all the modules are connected via a redundant, dual network.
Bridge Mate DP 2(MT)