project specification

Leng

An exploration AUV for long-distance-missions. The shape is specifically designed to meet the requirements of the Europa-Explorer-Project: a pilot survey for future missions to Jupiter's moon Europa. It focuses on the aspect of navigation of robotic systems on and especially under the ice-shield of Europa. Below the surface an ocean comprised of liquid water is expected. After penetration of the ice-shield an exploration can be conducted.

Specifications

Diameter 22
Length3.5
Power supply 1.75
Speed 3
Actuation/ Engine 1 Main thruster (pan-tiltable)
2 lateral thrusters, each 600W.
2 buoyancy engines (each 0.7l volume)
SensorsEvologics S2CR 48/78 USBL
Rowe 1.2MHz dual-head DVL
KVH 1750 3-Achs FOG/IMU
Paroscientific series 6000 pressure sensor
Micron DST obstacle-avoidance sonar
2x Reson TC4013 hydrophone, ground-stereo camera s
9x 3500 lm LED-flasher
Communication USBL (modem function)
Ethernet (when tethered with either copper or fibe
WiFi at the surface)

Overview

The shape is specifically designed to meet the requirements of the Europa-Explorer-Project:  a pilot survey for future missions to Jupiter's moon Europa. It focuses on the aspect of navigation of robotic systems on and especially under the ice-shield of Europa. Below the surface an ocean comprised of liquid water is expected. After penetration of the ice-shield an exploration can be conducted. 

The AUV has a very small diameter (in order to fit into an ice drill) as well as a hydro dynamically optimized outer hull (in order to reduce energy consumption and enable long-range missions).

The vehicle is equipped with a large number of different navigation sensors since localization quality and availability are of key importance – in the Europa-Explorer-scenario the vehicle has to return to its starting position (ice drill) even after having conducted long-distance missions.

Besides operating fully-autonomously, the AUV can be operated in hybrid-ROV-mode by connecting either a fiber or copper data cable.

References

Describes the project, it's specifications, sponsors, team, and application fields.

https://robotik.dfki-bremen.de

Wevolver 2022