Rescue and salvage at sea involves a variety of different fields, so it’s an extremely complex project. Below is a simple classification according to our business fields.
 

	Classifications	Operations	Corresponding products
1	Accident location and report	Accident location	High precision DGPS, Beidou, beacon
		Cooperative positioning, position determine	NaviPac software
2	Search and positioning	Seabed search work	Multibeam echosounder, side scan sonar, forward looking sonar, underwater navigator
		Underwater positioning	High precision DGPS, USBL
3	Survey and inspection	Video	Opto-electronic platform
		Underwater video	Underwater camera, ROV
4	Salvage	Rescue and salvage	ROV, manipulator, cutter tools
5	Marine environment	Flow volume and velocity monitoring	ADCP
		Wind, wave, surge	Wave gauge and wave radar
6	Service vessels	Distribution and localization	NaviPac software
		Multi-ship cooperation	NaviPac software, USV