TECHSAS (TECHnical Sensor Acquisition System) is the oceanographic and marine data acquisition system used by the Fleet.

TECHSAS is installed on the R/VPourquoi Pas ?, L’Atalante, Thalassa, Marion Dufresne and L’Europe, and for BASSOP.

The underwater systems (Nautile, ROV Victor6000 et HROV Ariane) are also equipped with TECHSAS for collecting data.

TECHSAS can process:

  • timestamping and acquisition of scientific data
  • archiving of data (NetCDF format, ASCII, database)
  • visualization of data (web page)
  • visualization of the video streams of the cameras on board.

Data acquisition and archiving

Adding a sensor and acquisition monitoring can be done via a web page.

It takes only a few clicks to set up a sensor and then it appears in the list of sensors and its data is then saved in the NetCDF format.

TECHSAS can interface with numerous sensors without additional development and also enables the operator to monitor acquisition via a web page.

Displaying data

Displaying video streams

TECHSAS concentrates the video streams from the various cameras installed on the ship for the monitoring of operations, such as putting equipment into the water, deploying submersibles, using winches, etc.

The CASINO+ application is currently used as the “ship’s log” function, enabling the operator to record all the operations undertaken aboard ship. The feasibility of migrating to a Web application which can integrate TECHSAS is currently being studied.

The CASINO+ application enables scientists to collect automatically various scientific and technical data, as well as record all the operations undertaken aboard ship during a cruise. Such information is time-stamped and georeferenced to help scientists in their analysis once the cruise has been completed.


  • Create, configure, open and close a logbook for each cruise.
  • Archive at regular intervals the various technical and scientific parameters shared across the ship’s network by TECHSAS (data sharing and archiving system) and CINNA (integrated navigation system) in the formats NMEA or XML (preferred).
  • Log events (profile start/end, station start/end, device operations).
  • Modify and insert after the event data that has already been archived.
  • Display a map view.
  • Plot a graph showing archived parameters according to time.
  • Process and export such data.
  • Generate a cruise summary for IFREMER’s scientific information system (SISMER).

CASINO+ functions were defined by a group of users to ensure that the application is both flexible (multidisciplinary) and easy to use.

CASINO+ is available on all the deep-sea vessels operated by IFREMER.