project specification

Sparus II AUV

A lightweight autonomous underwater vehicle for a maximum depth of 200m. The Sparus II is capable of hovering and has an easily configurable payload area and an open software architecture. It combines torpedo-shape performance with hovering capability. It is easy to deploy and to operate. The payload area can be customized by the end user and it uses an open software architecture, based on ROS, for mission programming. Its flexibility, easy operation and openness makes the SPARUS II AUV a multipurpose platform that can adapt to industrial, scientific and academic applications.

Specifications

Length1.6 m
Hull diameter0.23 m
Max width0.46 m
Weight in air52 kg
Maximum depth200 m
Energy1.4 kWh Li-Ion battery system
Endurance8-10 hrs
Max surge velocity:3 knots
Propulsion system:3 thrusters
DoFsSurge, heave, pitch and yaw
Power on:Magnetic switch
StructureModular aluminium and acetal hull
SoftwareROS over Linux Ubuntu
CommunicationWiFi and Ethernet umbilical
NavigationIMU, DVL, pressure sensor, GPS
SafetyFlashing light
Payload volume8 liters (7 kg in air)
Payload interfaceEthernet, RS-232, regulated 12V and 24V

Overview

It combines torpedo-shape performance with hovering capability. It is easy to deploy and to operate. The payload area can be customized by the end user and it uses an open software architecture, based on ROS, for mission programming. Its flexibility, easy operation and openness makes the SPARUS II AUV a multipurpose platform that can adapt to industrial, scientific and academic applications.

The  estimated  maxi-mum velocity in surge is between 3 and 4 knots. It has 3 thrusters (2 horizontal and   1  vertical) that allow the control of the surge, heave and yaw Degrees of Freedom (DoFs) when moving in hovering mode. In torpedo-based mode, the two fins behind the horizontal thrusters are used for controlling the pitch DOF and thus controlling the depth or altitude of the vehicle. 

The fins can also be used to maintain a stable angular position in roll DOF. The  robot is designed to be efficient when moving fast using the two horizontal thrusters and the two fins for controlling surge, pitch and yaw DOFs. The vertical thruster is not used in this mode, since the fins are able to control the depth of the vehi-cle more efficiently. Then, the robot can keep position or can move slowly using the vertical thruster for counteracting the buoyancy and floatation forces, thus acting as a normal hovering UUV.

References

Describes the main features of the SPARUS II AUV, and it's design.

Marc Carreras, Carles Candela, David Riba, et al.

This paper describes the experience of preparing and testing the SPARUS II AUV in different applications.

Marc Carreras, Carles Candela, David Ribas., et al. - 2015

Wevolver 2022