Compatt 5 Transponder

Transcription

1 SONARDYNE NAVIG VIGATION SYSTEMS Compatt 5 Transponder The world s most capable acoustic navigation transponder Designed for

2 1 Compatt 5 Compatt, the Computing and telemetry transponder, has been the market-leader for subsea positioning for over two decades. The latest generation of this transponder is now here Compatt 5. A Platform for the Future Compatt 5 is based on a totally new electro-mechanical design and employs the latest acoustic signal processing technology. This new platform is designed to take Compatt forward for many years with regular upgrading of capability, easily installed by the user. The current Sonardyne acoustic architecture, the language that Compatts use, has now reached the limits of development. Compatt 5 is therefore necessary to support a new acoustic architecture, utilising modern broadband signals. New shipborne and ROV transceivers to support these new signal processing techniques are now available, together with Pharos navigation software and are known as the Fusion family of systems. These systems will reduce operating times, enable new positioning techniques of unparalleled performance and provide operational flexibility for the foreseeable future. Backward Compatibility A key design philosophy is to maintain compatibility with the previous generation hardware, in order to protect customers investment in Sonardyne equipment. Compatt 5 has therefore been initially configured to emulate Compatt 4, whilst offering additional functionality, such as additional reply channels, faster telemetry, alternate CIF mode and status locking for multi-user scenarios. Compatt 5; a technology platform for the future whilst maintaining compatibility with Compatt 4 As customers build-up inventories of Compatt 5 and begin using them with the new Fusion generation of positioning systems, the full capability of the Compatt 5 platform can be unlocked. Cost Savings Compatt 5 not only offers improved performance, it is also designed to be significantly cheaper to operate and maintain. Through-life costs are reduced by greater flexibility in the utilisation of the transponders in different system configurations and for different applications. In addition, true multi-user capability will enable cost savings through better utilisation of subsea arrays. Operational efficiency is significantly increased through faster set-up, faster array calibration and faster navigation cycles. Basic maintenance tasks, such as replacing battery packs or changing endcaps, can be accomplished in a fraction of the time, when compared to a Compatt 4. The Data Fusion Engine; an integrated interface and processor platform supported by Pharos software

3 2 Features & Benefits Mechanical Design Compatt 5 s innovative mechanical design offers the following major benefits: Flange-less exterior to simplify ROV placement in subsea frames and buckets Working depth increased to 3,000 metres using Compatt 4 floatation collars Stronger guard protects transducer against impacts without degrading acoustic beam pattern Fast, simple battery pack replacement without exposing or removing electronics from housing Endcaps simple to configure and change Easy access to electronics for maintenance and upgrade Smaller and lighter than Compatt 4 Short version available for applications requiring less battery life Electronic Design The all-new electronics have been designed to achieve the following criteria: A flexible platform for future expansion Firmware upgrade via PC download and Internet Self-test diagnostics without opening pressure housing Broadband signal capability for navigation and high-speed data transmission Compatt 4 compatible agile receivers Faster acquisition of sensor data (pressure, temp, sound speed etc.) by smart sensor endcap Telemetry of sensor endcap data in engineering units; calibration parameters stored internally Connector for power input/output to save battery or to power external devices External analogue or digital sensors may be connected; RS232 data input/output Battery packs with improved redundancy; cell failures have less effect on operating life Battery pack memory chip records remaining capacity, even when removed from transponder Testing Before being released for field operations, Compatt 5 has undergone extensive testing. The tests have included: Comprehensive drop, topple and impact testing Pull tests to check Safe Working Load of assembly Pressure tested for 3,000 metre working Temperature cycle tests Full compatibility with Pharos navigation software proven by extensive sea trials Firmware Features Compatt 5 is intially available with the following firmware features: All standard Compatt 4 commands and interrogation modes Three additional channels to act as navigation reply channels Faster telemetry speeds up complex navigation modes Any navigation channel can be a Common Interrogation Frequency Status locking to provide extra security Future Features The capability of Compatts also depends on the functionality available in Pharos shipborne software and the capabilities of the transceivers fitted on ships and ROV s. An on-going programme of software and firmware development will provide regular upgrading of Compatt 5 s capability during the life of the instrument. Some of the early improvements will include: Faster Commands - by FSK Telemetry These will greatly reduce the time to set the status of a Compatt. Digital telemetry commands sent to a Compatt will allow more complex commands to be sent to a Compatt 5, for example setting all the status parameters in one shot. Multiple Measurements To speed up array calibration a single command will trigger multiple baseline measurements, with data being sent to the surface at the end of the sequence. Broadband, Spread-Spectrum Signals Sonardyne has pioneered the use of broadband ranging techniques in the SIPS range of geophysical streamer positioning system products. The many advantages of this technique, (e.g. more channels and greater accuracy), will shortly be brought to the Survey and Dynamic Positioning product range. In particular, the Compatt 5 and the new Fusion ROVNav and USBL transceivers are all designed to be able to use broadband ranging. Compatt 4 will not be compatible with broadband, spread-spectrum signals, so complete arrays of Compatt 5 must be available. Scalable Acoustic Architecture The acoustic architecture of an underwater navigation system is the combination of frequency channels and signal sequences for commanding transponders, for interrogations and replies and also for data telemetry from the seabed. Sonardyne s original architecture was developed when each ship operated its own transponder array in isolation. Although the original acoustic architecture has been enhanced over the intervening years and has been expanded now for Compatt 5, it is approaching the limits of development. Therefore Sonardyne has invented Scalable Acoustic Architecture which is applicable from single arrays to wide-area installations covering whole oilfields and for multi-vessel simultaneous use. It will provide dramatic improvements in speed and operating efficiency. The Scalable Acoustic Architecture software modules for Pharos and the firmware upgrades for Compatt 5, USBL and ROVNav transceivers will be introduced into customers systems simultaneously.

4 3 Specifications & Options C ompatt Version* T ype 8000 (MF) T ype 8001 (EHF) T ype 8002 (LF) T ype 8003 (MF) Type 8004 (MF) F requency M F (18-36kHz) E HF (50-110kHz ) L F (7.5-15kHz) M F (18-36kHz) MF (18-36kHz) Transducer Beamshape Omni-Directiona l Omni-Directiona l Omni-Directiona l Semi-Directional ±45 degrees Super-Directional ±15 degrees Depth Rating 2,500m Relative Positioning Accuracy Maximum Acoustic Range m m m m m 3km 1km 10km 5km 7km Acoustic Output Power (db re 1 metre) dB dB dB dB dB Receive Threshold (db re 1µPa) Battery Listening Life (Standard Battery Pack) Battery Listening Life (Short Housing Battery Pack) 400 days (Alkaline) 690 days (Lithium) 400 days (Alkaline) 690 days (Lithium) N/A N/ A N/ A Weight in Air/ Weight in Water (Standard Housing) 21.6Kg / 11.2Kg 21.6Kg / 11.2Kg 21.6Kg / 11.2Kg Maximum Dimensions (Standard Housing) 133mm diameter x 1035mm long 133mm diameter x 1035mm long 133mm diameter x 1035mm long Endcap Sensors (Fitted as Standard)** Endcap Sensors (Optional)** Strain Gauge, PRT, Dual Axis Inclinometer and power for external sensors High Accuracy Inclinometers, Quartz Pressure Sensor and Sound Speed Sensor. External sensors to order * Compatt 5 specifications subject to change without notice. ** See separate datasheet for Compatt 5 sensor specifications. Example Type 8000 (MF) Compatt 5 Configurations 133mm (5.24") 1035mm (40.75") Flange-less with Release Endcap Flange-less Release Endcap with Guard Flange-less 154mm (6.06") 143mm (5.63") Flange-less with Release Endcap and Split Bump Stop Flange-less with Bump Stop and Rope Lifting Handle 133mm (5.24") 698mm (27.47") Flange-less with Release Mechanism Removed and Short Housing Flange-less

5 4 Design Overview Compatt 4 (Left) vs Compatt 5 guard impact tests show considerably less damage to the new Compatt 5 design Compatt 5 lifting eye with SWL of 250kg; requires 5/16 (8mm) shackle (supplied) 2 bolts retain clamp rings to simplify and speed up endcap removal New, stronger transducer guard with improved acoustic beam pattern (See above) Complete chassis can be removed from housing allowing easy access to electronics Optional one-piece bump stop traps float collar and prevents instrument rolling on deck (Fig. 1) Changing a Compatt 5 battery in 6 easy steps and only 6 minutes All new electronics platform for the future; easily upgraded Faster, easier battery pack changes without exposing electronics (See Fig. 1) 00 :55 Firmware downloaded and setup via RS232 port on sensor endcap whilst housing closed Same housing diameter as Compatt 4 ensures compatibility with existing float collars Depth rated to 3,000 metres; high visibility outer protection sleeve Flange-less housing to simplify installation into subsea transponder buckets Intelligent battery pack retains memory of usage Smaller and lighter than Compatt 4 with short housing version available for spoolpiece metrology tasks Endcaps easily interchanged by removing 2 screws and disconnecting 1 cable Integrated dual axis inclinometer as standard for offset measurements; plus option of high accuracy inclinometers for metrology measurements 01 :30 01 :35 02 :20 External power and external sensor interface capability Integrated sound velocity sensor option whilst retaining acoustic release capability 03 :35 Intelligent sensor endcap with telemetry of data in engineering units; no need to record calibration parameters separately Smaller release mechanism based on proven Compatt principles with no reduction in strength; requires 3/8 (9.5mm) shackle (supplied) 06 :00

6 Sonardyne Sonardyne around the world around the world Sonardyne International Ltd. Blackbushe Business Park, Yateley, Hampshire, GU46 6GD, UK. Tel: +44 (0) Fax: +44 (0) Sonardyne International Ltd. Units 12-13, The Technology Centre, Claymore Drive, Bridge of Don, Aberdeen, AB23 8GD, UK. Tel: +44 (0) Fax: +44 (0) Sonardyne Inc Steeplecrest Drive, Suite 360, Houston, Texas 77065, USA. Tel: Fax: Sonardyne Asia Pte. Ltd. Second Floor, 35 Loyang Crescent, Singapore Tel: Fax: Sonardyne Brasil Ltda. Avenida Nossa Senhora da Glória, n o sala 101, Praia Campista, Macaé, RJ, Brasil, Tel: Fax: brasil@sonardyne.co.uk ISO 9001 Copyright Sonardyne International Ltd. Printed 02/03Designed for