Work-Class ROV
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Work-Class ROV


Work-Class ROV
Work-Class ROV

Based on a set of simplified, integrated subsystems for propulsion, control, and communication, the new ALSTOM ROV will significantly lower the cost of owning and operating a work-class ROV.

The electric ALSTOM ROV from ALS-TOM Automation Schilling Robotics delivers equivalent performance to current work-class systems, but is smaller and lighter and can easily be configured for a wide range of functions. The system’s high efficiency allows a reduced umbilical cross section and weight, resulting in a smaller deck footprint and reduced overall system weight. All subsea components are rated for operation at depths to at least 3,500 m. The ALSTOM ROV is scheduled to be available in March 2000.

ROV1.gif (59559 bytes)

The ROV’s 7.5kW electric ring thrusters increase ROV efficiency and reliability. The thrusters, which weigh only 27 kg (60 lb) each in water, are based on brushless/frameless DC motor technology and are easy to install, service, and maintain.

ROV2.gif (33905 bytes)

The SeaNet communication and telemetry system ensures that electrical connections to instruments and accessories are reliable, predictable, and easy to make and monitor. SeaNet uses compact, lightweight "hubs" to connect the control system to items on the TMS and ROV. These hubs, which eliminate large, heavy control pods, attach to a single type of cable/connector assembly that connects all accessory items to the system, including sensors, cameras, thrusters, and tools.
Electric actuators on the ALSTOM ROV produce both rotary and linear motions and allow a range of positioning tasks to be performed without hydraulic power. Both the rotary and linear actuators are small and lightweight, and are capable of much more precise movement than hydraulic actuators.

Reliability is enhanced by reducing the number of cable-based electrical connections, greatly lessening the chance of equipment failure from faulty connections. Direct conversion of electrical power to thrust reduces the number of moving parts and interconnections in the propulsion system. The SeaNet communication network ensures the compatibility of sensors, actuators, and control devices.
More information: ALSTOM Automation Schilling Robotics


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