Wassp S3R integrated in SB 100 PRO in a Port survey

Inspection and bathymetry

GPASEABOTS’ SB 100 PRO USV, the most versatile USV platform on the market for sheltered waters activities. It is an indispensable tool for a fast, efficient and precise work. Both the operating cost and its environmental footprint are extremely low, and it allows to expand the range of possibilities in the field of data acquisition.

The WASSP S3R Solution is a fully integrated kit which includes all the core components required for a multibeam survey operation, designed to ensure functionality, ease of use and cost effectiveness, all the while achieving accuracies required by international survey standards such as IHO S-44 Standard 1a and Special Order.

INCLUDES: S3 with a Processor DRX IP66, Transducer WBFT 90-190kHz, SBG Ellipse Dual RTK INS

(heading, position, pitch & roll, heave), Mini SVS Valeport, CDX, RPM and survey licenses.

Location:

The location for a demo session that took place in the context of a trade mission was the Port of Aiguadolç, in the coastal town of Sitges, 35 km (22 miles ) away from Barcelona (Spain).

Data acquisition:

This tool allows instant identification of the position of moorings in harbours and marinas.

With a quick inspection, technicians can see if the position of the moorings is correct according to the technical specifications. It is also possible to check the size of the blocks in detail, identifying the position of the connecting chains between moorings.

On the other hand, this working tool is able to identify sand accumulations in dykes and shipyards. Knowing the level of the ever-changing seabed is essential for a safe navigation in enclosed harbours.

Compatible with most leading hydrographic software such as HYPACK, EIVA, QPS, CARIS, BEAMWORX and others.

Specific application: Control and monitoring of dock constructions, multibeam bathymetry, draught control, dredging, volume calculation, inspection of structures and location of submerged artefacts.

See accumulations and losses of sand at the port entrance. It is common for sediment to accumulate at harbour entrances after storms, reducing the draught and causing the risk of vessels running aground.

A recurrent bathymetric survey is usual in order to monitor the movement of sand and to be able to plan precision dredging when required.

Pay attention in the upper image to punctual dredging marks and the accumulation of sediment at the entrance to the port. This tool is also capable of identifying the anchoring chains of vessels. As an example, this image of the raw data of this case.

Overview of the surveyed area in the context of a demo session. No coverage passes were made, being a test day of 1 hour duration. The raw data were obtained with Wassp CDX software, worked in parallel with BeamworX and the visualisation in this case with Eiva NaviSuite Viewer.

Conclusions:

The multipropose USV SB 100 PRO equipped with a WASSP S3R multibeam echosounder offers an unbeatable performance. A complete pack with all the necessary instruments to perform entire works while increasing potential applications in several marine sectors. It can to carry out control and monitoring of dock constructions, multibeam bathymetry, draught control, dredging, volume calculation, inspection of structures and location of submerged artefacts. INS SBG Ellipse Dual Antenna and SVS Valeport included on it ensure accuracy and quality of data.