Data Transmission

Results from sea experiment

Description of work

Data telemetering will be separated into the integration of wired Ethernet communication and wireless backup underwater acoustic transmission from the submerged unit to the surface buoy, and radio (THEMO sites) and fibre-optic (PLOCAN site) communication from the surface buoy to a shore station. New protocol for the compressing of the segmented optical images will be developed. The tasks of this WP are:

4.1) Deep-to-surface transmissions: Lead partner: EvoLogics. Integrate deep-to-surface communication technology (wired Ethernet backed up by wireless acoustics) to deliver data packets over vertical underwater links. The capabilities of this link will serve as input in Task 4.2 (Surface-to-shore). The work will be managed by EvoLogics, and will be reviewed by IMDEA and UH. The milestone of this task is the demonstration at sea of data transmission from 90m to a surface platform.

4.2) Surface-to-shore transmissions: Lead partner: UH. Connect data flow from deep-to-surface (Task 4.1) to the radio (THEMO sites) and fibre-optic (PLOCAN site) link of the mooring to deliver data packets to a shore station. On shore, data will be automatically uploaded to a cloud service and shared with the project’s participants and the board of advisors. The work will be managed by UH, and will be reviewed by EvoLogics. The milestone of this task is the demonstration at sea of data transmission from 90m to a shore station.

4.3) Image compression: Lead partner: UH. Develop an algorithm for compression of the segmented optical images that contain a detected fish. The development will include the identification of the area-of-interest, and a way to represent the shape of detected objects in the segmented image to allow lossy image compression. The output of this task will serve as input for Task 4.1 (Deep-to-surface).  The work will be performed by UH, and will involve EvoLogics for technical support during its implementation. The milestone of this task is a statistical analysis showing an average of 20% compression rate of underwater segmented underwater images.