A New Era in Local Position Referencing Sasha Heriot Business - - PowerPoint PPT Presentation

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a new era in local position referencing
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A New Era in Local Position Referencing Sasha Heriot Business - - PowerPoint PPT Presentation

Apr 22, 2023 311 likes •561 views

A New Era in Local Position Referencing Sasha Heriot Business Development Manager Collaboration Marine Guidance Sasha Heriot Business Technologies Marine Development Manager DP Integrator Local PRS Sensor Ole M Husy responsible

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A New Era in Local Position Referencing

Sasha Heriot Business Development Manager

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Collaboration

Guidance Marine

  • Local PRS Sensor

designer and manufacturer

Bernhard Schulte Ship Management

  • Vessel owner

Marine Technologies

  • DP Integrator

Sasha Heriot – Business Development Manager Tom Coggins - Microwave Technologies Group Manager Milijan Mudrinic - Software Technologies Group Manager Andrew Stead - Head of Business Development Hendrik Busshoff - Offshore Marine Superintendent Ole M Husøy responsible for sales & design

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

The Ocean Zephyr

Based in Emden Services the BARD1 wind farm in the North Sea Converted PSV Accommodation Motion compensated walk to work gangway Position reference systems: DGPS and CyScan

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

DP local position reference sensors

Measure relative position Sensor

  • n vessel

Target on fixed station DP System

  • Hold position
  • Move safely & precisely
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Tel: +44 116 229 2600 Web: www.guidance.eu.com

DP local position reference sensors

Up to 10km On Vessel Fixed Station

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

DP local position reference sensors

Up to 1km On Vessel Responder target on platform

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

DP local position reference sensors

Up to 2.5km On Vessel Reflector target on platform

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Offshore oil vs offshore wind

http://strangesounds.org/wp-content/uploads/2013/08/Germany-BARD-Offshore-1-Completed-Ahead-Of-Schedule.jpg

Mars oil field, Gulf of Mexico 2 platforms BARD1 Wind Farm, North Sea 80 turbines 1-2 approaches per day 1-2 targets per platform 50 approaches per day Targets on every turbine - £££

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Reflector target location

Navigating in wind farms

  • Direct line of sight between the laser

sensor and reflector

  • The reflector must ideally be at a similar

height to the sensor

  • The reflector should be well maintained

and clean

  • No other reflectors should be in the vicinity
  • f the target

Laser PRS operation requirements Risk of false reflection and walk

  • ff incidents if
  • CyScan not set up correctly
  • Poor quality targets are used
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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Demo

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Are targets the answer?

Tube/Tape

£ High Maintenance 5 years life High risk of false reflections

Prism

£££ High Maintenance 20 year life Risk of false reflections

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Use the environment as your target

Environment

£0 NO Maintenance >20 years No risk of false reflections

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

What is ?

  • fixed beam radar sensors operating in the license exempt short range

device band of 24GHz Targetless object detection and accurate distance measurement

  • a warning is output when a potential hazard is detected within user

defined protection zones

  • An accurate range measurement is displayed on the user interface via a

web browser Measures range to the nearest object

  • 11°(+/-5.5°) elevation and two options of azimuth beam: 11°(Narrow

Beam) and 110° (Wide Beam) Wide beam and narrow fixed beam options

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Dynamic positioning with RangeGuard

Ships network Ships DP system – Not for this trial RangeGuard Controller Display on Bridge

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Installation on the Ocean Zephyr

15m

  • Wide beam sensors
  • IP video cameras
  • Beam overlap gives range 8 meters to >> 50 meters
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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Bridge display

Different Views available

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

How is raw data processed?

All radar return signals are detected – peaks in signal strength Radar Data processed in control box Target tracking algorithm used to monitor and track peaks Can track 10 peaks simultaneously Can Lock onto an interesting peak – largest or nearest

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Range [m] Signal Level [dB]] FFT Data – Approach to Sub Station

Camera View

RangeGuard “sees” peaks corresponding to the legs

What does raw data look like?

  • Up to 10 peaks can be tracked simultaneously
  • Can lock onto nearest or biggest peak
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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Sea trials - Close Range Approach

10 20 30 40 50 60 70 80

10:00:00 10:01:24 10:02:48 10:04:12 10:05:36 10:07:00 10:08:24 10:09:48 10:11:12 10:12:36 10:14:00 10:15:24 10:16:48 10:18:12 10:19:36 10:21:00 10:22:24 10:23:48 10:25:12 10:26:36 10:28:00 10:29:24 10:30:48 10:32:12 10:33:36 10:35:00 10:36:24 10:37:48 10:39:12 10:40:36 10:42:00 10:43:24 10:44:48 10:46:12 10:47:36 10:49:00 10:50:24 10:51:48 10:53:12 10:54:36 10:56:00 10:57:24 10:58:48

Approach to Wind Turbine

Station keeping Station keeping Station keeping Vessel moves Vessel moves

Distance to target [m] Time[hh:mm:ss]

Camera View Camera View

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

50 100 150 200 250 300 350

08:09:44 08:10:44 08:11:44 08:12:44 08:13:44 08:14:44 08:15:44 08:16:44 08:17:44 08:18:44 08:19:44 08:20:44 08:21:44 08:22:44 08:23:44 08:24:44 08:25:44 08:26:44 08:27:44 08:28:44 08:29:44 08:30:44 08:31:44 08:32:44 08:33:44 08:34:44 08:35:44 08:36:44 08:37:44 08:38:44 08:39:44 08:40:44 08:41:44 08:42:44 08:43:44 08:44:44 08:45:44 08:46:44 08:47:44

Approach, Dwell, Depart Sub-Station

Sea Trials – Long Range Manouver

Camera View

Distance to target [m] Time[hh:mm:ss]

Camera View

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

DP Integration

Other sensors

Calculates position using sensor location and range data

Controls thrusters DP system Display on bridge

Tracks up to 10 peaks per sensor Outputs Range data DP string format

Data sampled 3 times per second Data sampled 3 times per second

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Benefits of RangeGuard System

No targets – uses the environment

  • Vessel independent of installation
  • No false reflections
  • No maintenance
  • Reduces costs

Improves safety

  • Additional form of redundancy

Increases efficiencies

  • Decreases turnaround times
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Tel: +44 116 229 2600 Web: www.guidance.eu.com

What’s next?

The first vessel to have RangeGuard fully DP integrated will be ready to sail in 2016 – the Windea La Cour

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Tel: +44 116 229 2600 Web: www.guidance.eu.com

Contacts

milijan.mudrinic@guidance.eu.com tom.coggins@guidance.eu.com hendrik.busshoff@bs-shipmanagement.com Ole Morten Husoey: ole@mtllc.us Thanks for listening! Sasha.heriot@guidance.eu.com