rss icon Subscribe
desktop mobile

First Ever USV-supported Cable Route Survey

(Photo: ASV Global)

Posted by Eric Haun

For the first time ever, a seabed cable route survey has been performed with support from an unmanned surface vehicle (USV).

The survey route included various water depths and strong currents, while facing difficult wind and sea conditions in the Bering Sea offshore Alaska. The project was mobilized immediately following a 9,000km nautical charting survey by Terrasond, of which 4,750km (53 percent) was executed by an ASV Global C-Worker 5 autonomous surface vehicle (ASV). The cable route survey required a new payload including a hull mounted multibeam sonar, a sub-bottom profiler, and a towed sidescan sonar with 250m of armored sonar cable. The payload swap on the ASV was integrated, calibrated, and demonstrated in the field in less than 48 hours. A total of 1,220 km of cable route survey lines was then successfully executed by the ASV C-Worker 5 system.
Thomas Chance, CEO of ASV Global, said, "This is a landmark achievement for ASV technology, and we are pleased to be supporting TerraSond in this effort. The fast re-tasking of the system from one type of mission to another illustrates the flexibility of the C-Worker ASV, and its consistent performance in difficult sea conditions further underscores the value of this highly efficient approach to offshore operations."
Throughout the operation the C-Worker 5 was remotely monitored using ASV Global's ASView control system from a station on TerraSond's mother ship. ASView used exported .dxf survey lines from the TerraSond survey planning system to autonomously execute an accurate survey with minimal human intervention.
ASV Global has supported TerraSond for three consecutive years refining the use of autonomous systems in hydrographic survey applications. This year's deployments follow on from a 2016 charting survey completed in the Bering Sea, off Alaska where ASV Global and TerraSond marked an industry first by completing a 9,578km hydrographic survey, 4,213km of which were completed unmanned. Combined, these operations result in over 10,000km in unmanned survey lines.
Tom Newman, President of TerraSon, said, "We continue to be impressed after several projects with ASV's C-Worker 5 in a variety of missions. Together with ASV we have performed the first use in charting, first use in the arctic, first use for a cable route survey and first to accumulate over 10,000km in use. ASV's team has risen to each challenge and the system has proved to be a reliable and cost effective force multiplier, often doubling our production, operating in areas unsafe for a larger vessel and allowing multitasking on projects."

Oct 10, 2017

 

Hydrgraphic

Finland Selects CARIS Hydrographic Production Database

FTA’s and Teledyne CARIS’ project team together at the kick-off meeting for the start of the project (Photo: Teledyne CARIS)

The Finnish Transport Agency Liikennevirasto (FTA) has selected Hydrographic Production Database

Singapore, Indonesia, Malaysia sign MOU for Joint Hydrographic Survey

Signatories to the MOU for Phase Two of the Joint Hydrographic Survey at the 10th Co-operation Forum. Photo: Maritime and Port Authority of Singapore

To demonstrate multilateral cooperation between littoral states and stakeholders to improve

Klein's Side Scan Sonar, Then and Now

Martin Klein with a Klein  multibeam side scan sonar. “We were proud that side scan was able to finally replace the old wire drag technology.” (courtesy Martin Klein and the MIT Museum)

The company known today as Klein Marine Systems, Inc. has origins stretching back to the 1960s

News

Noble Group sells Oil Unit to Vitol

Oil liquids unit to be sold for about $580 million.   Struggling commodities trader Noble Group agreed to sell its Americas-focused oil trading business to Vitol for about $580

U.S. Midwest Refiners Boost Output

File Image (CREDIT: AdobeStock / (c) Sharrif Che'Lah)

U.S. refineries from Ohio to Minnesota are capitalizing on access to cheap crude from Western

USS Monterey Provides Assistance to Vessel

Photo: United States Navy

The Ticonderoga-class guided-missile cruiser USS Monterey (CG 61) provided assistance to a

Maritime Apps