The current suction hopper dredger generally separates the control of the dredging operation and the driving of the ship. It needs to be operated separately, which is very inconvenient. The new technology of one-man dredging is therefore developed. The one-man dredging technology, which is also called one-man dredging and driving or integrated dredging and driving, is a set of highly intelligent and integrated dredging control system. The dredging operation procedure is greatly simplified to allow the ship driver to use the buttons installed on the navigation control console to perform dredging operations while ensuring the safe navigation. The one-man dredging technology is introduced from the aspects of system configuration, function description and main controller functions.

A large number of crew will work and live on board for many large special purpose vessels with the continuous exploration of ocean, which will put forward higher and higher requirements for the ship safety. In general, safe return to port is for passenger ships, and there are few engineering ships can meet this requirement. This paper introduces the design method of the electrical system and its influence on the design of the electrical system for a deepwater pipe-laying crane vessel that meets the requirement of safe return to port. It can provide reference for the design of the similar ships in the future.