HighWire® - Taut Wire Position Reference System
Survey grade taut wire system
Overview
A highly accurate taut wire position reference system for offshore and submerged operations
The HighWire® is a robust taut wire system deployed for offshore and submerged operations. The system can be applied for a wide range of offshore operations that require accurate and real-time positional data of submerged objects, such as during pile driving, mudmat or caisson installation, spool piece installation, and marine civil engineering projects.
The HighWire® has proven to excel in environments and under conditions that saw competing technologies – such as acoustic-based position reference systems – give way. For example, Boskalis applied the HighWire® to install sewage outfall pipes at water depths of 50 metres, in currents of up to 4 knots. In this setting, our HighWire® system realised an accuracy of 1 centimetre. This extremely high accuracy level enabled the client to make male/female connections as quickly and smoothly as possible, and save valuable operational time.
- Typical applications
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- Wide range of operations that require accurate and real-time position measurement of submerged objects, such as pile driving, mudmat or caisson installation, and marine civil engineering projects
- Key features
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- Highly accurate position reference system
- Straightforward calibration
- Unaffected by noise
- Applied to
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- Sewage pipe installation - Boskalis
- Subsea plough position - Boskalis
Our HighWire® enabled Boskalis to install sewer pipes in currents of up to 4 knots at an extremely high accuracy level of 1 centimeter, contributing to smooth operations and reduced valuable operating time. How can we empower you?
Features & Specifications
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Highly accurate
The HighWire taut wire system is supplied with cable angle measurement at both departure points – surface and bottom – in addition to wire length measurement and wire tension measurement. This setup solves a set of six differential equations that describe the “true” wire catenary, and calculates an object’s position with the highest possible accuracy. Due to powerful currents, the HighWire’s high level of precision has proven to be of great value.
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Straightforward calibration
With a few simple provisions, the system can easily be calibrated on-deck, without the need for high-tech tools or in-depth knowledge.
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Unaffected by noise
The HighWire taut wire measurement system remains unaffected by influence from ambient noise, propulsion noise, machinery noise, etc. This allows for very accurate and reliable relative position measurement in noise-rich environments.
Specifications
- Type of taut wire: Survey grade taut wire
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Purpose of taut wire:
Relative and absolute position
measurement system (DGPS included) - Measurement range: 100 metres
- Output data format: NMEA
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Update rate:
10 Hz (maximum rate: 50 Hz),
independent of water depth - Allowable wire velocity: 60 metres per minute
Multimedia
Calibration can be performed in a highly automated manner: the system can be calibrated on deck, immediately before an operation, and without the need for high-tech equipment or in-depth knowledge.
Contact
Would you like to discuss your project with our experts?
CONTACT FORM
OTHER CHANNELS
- General
- +31 (0) 186 68 00 00
- info@seatools.com
- Sales
- +31 (0) 186 68 00 00
- sales@seatools.com
- Service (outside office hours, emergency only)
- +31 (0)186 65 00 75