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What AutoNav offers is much more than just a DP,
It is an Integrated Vessel Control System (IVCS).		     
 
 
 
HOS Innovator, owned by Hornbeck Offshore LLC, is the first of a six-vessel new construction program to install the AutoNav DP System. These are DPS-2 ABS Classed dual redundant systems.
 
 System Overview
The Autonav Integrated Vessel & Control System 3002 (IVCS 3002), the AutoNav 3rd generation of DP System, application software is a Windows based integrated vessel control system using a powerful marine grade and shock mounted computer, PLC input/output modules and serial port modules for digital data input/output.
 

The latest ship dynamics algorithms are included which operate on optimization methods, Kalman filtering, frequency domain techniques and feed forward techniques, which are implemented to ensure the highest positional accuracy with minimum actuator activity.

Adaptive data rejection and control loops minimize response to unstable received data and provide continual and automatic optimization of control parameters. A high level non-linear three degrees of freedom mathematical ship model provides state of the art control.

Alarm and status indication is continually visible on the large flat panel LCD display and windows are user configurable for individual customization. The LCD display is sunlight viewable and can be trunnion mounted for easy change in viewing angle or flush mounted into a console.

All information such as course set and course steered, commanded and actual rudder angle, commanded and actual main engine and commanded and actual thrusters directions and magnitudes are clearly shown in colour graphic displays.

A touchscreen with automatically reconfigured soft keys provides a simple and easy to view user interface. English language voice alarms as well as acoustic alarm signals are given and the history of alarms may be continually displayed. The message/alarm system is self-checking.

A UPS supply is included to ensure continued operation in case of power failure. It also features automatic and controlled computer shut down after prolonged power outage.

The system is capable of providing the following functions:

• Joystick and rotary knob control of vessel heading and position with non follow up and full follow up steering control
• Automatic heading control
• Automatic vessel speed control
• Automatic position control with either or both fore and aft and athwart ships axis control
  Track control at low speed
• ROV following
• Automatic compensation for failed or off line actuators. Includes graphic capability plot showing direction and magnitude of disturbing forces and magnitude and direction of resultant actuator forces.
• Autopilot
• Autopilot with Nav input, steering to waypoint and automatic waypoint sequencing.
• Track control at high speed
• The IVCS 3001 manual control of actuators with display of commanded and actual positions
• Built in ¡°trainer¡± (simulator) for realistic dockside training of operator
 
 
 
 System Features

   
• High Reliability
• High Accuracy (+/- 0.15 M, +/-0.5 Ft.). Position keeping accuracy is at least 5 times better than competitors according to recordings of sea trial performance and accuracy claims by competitors
• 50% less fuel consumption
• 50% less machinery wear
• Easy to learn and use
• Sunlight viewable flat panel LCD screen is easily seen under all ambient lighting conditions
• Compact LCD display is easy to mount in space restricted consoles and especially easy for refit to older vessels
Low Cost Option
• No Complicated and expensive INMARSAT tracking antennas required
• Faults and diagnostics are directly sent to qualified AutoNav factory service engineers
• Corrective messages are returned to the vessel for on board repair
• Eliminates wasted time and added cost of reaching port for engineering support to arrive and conduct diagnosis
• Can also be used to transmit keyboard messages on any subject and to remotely monitor any machinery or data on board
• Autonav is more attentive to customers needs for customization.
 
Features of Autonav DP in comparison with others
Feature Autonav Other Main Competitors
Fibre Optic cables Yes No
Plain language voice announcements for status and alarms
Yes No
PLC Control (No Windows)
Yes No
Solid State Hard Drive
 Yes No
50% fuel reduction
Yes No
Touch Screen Yes No
Potable Remote Control Yes No
Easy to learn and use Yes No
 
• Fibre Optic cables eliminate electrical interference to and from the DP. They are also more robust and resistant to corrosion or mechanical failure.
• Plain language voice announcements. All other rely on alarm horns and messages on the screen. When operating close to hazards, the DP operator feels much more comfortable if he hears the status and alarms while looking outside at potential hazards. He also knows that the alarm is specifically for the DP and does not have to guess what the alarm horn means.
• PLC Control. In our experience, most DP failures occur due to a crash of the Microsoft Windows operating system. Our DP control is provided by a high performance PLC module which is far more robust and failure resistant that any Windows control program.
• Solid state hard drive. High speed electromechanical hard drives are vulnerable to shipboard shock and vibration. This is completely eliminated by our solid state drives.
• 50% fuel reduction. Customers report that our DP has saved in excess of 50% of the fuel which they previously used with competitor¡¯s DPs.
• Touchscreen control for simple and easy use.
• Optional portable waterproof full function remote control with neck strap
• Easy to learn and use. Customers have reported that due to our powerful displays, soft keys and voice announcements, they learned to use our DP much
 
 
 Technical Support
Due to the unique design of IVCS 3002:
• Modular designs that can be easily upgraded to higher classes
• Software upgrades can easily be sent by e-mail and downloaded into a PC via a laptop computer
• Easy-to-perform on-board diagnostics and maintenance
• Accurate mathematical models greatly reduce sea trials and calibration from a typical 5 day process to a 1 day process thus reducing installed product cost
   
AntoNav has also the support via remote diagnostics:
   
• Remote diagnostics and monitoring in real-time for DP and any additional on board data is available with inexpensive satellite data communications link. This link can greatly expedite any required servicing and maintenance since the vessel does not need to return to port and wait for arrival of a service engineer
• In-house software engineers and computer specialists experienced in interfacing marine electrohydraulic systems provide competent advisory services when replacing older and outdated DP and thruster control systems
   
 

 
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