The ROV Hire Australia’s Seaeye Falcon, is the choice of many leading operators for capability, versatility and the ability to get the job done. Lightweight and portable it can go where they’re needed - inshore, offshore, down tunnels or for flyaway operations.
Available with a choice of options, tools and accessories, the Seaeye Falcon makes an ideal platform for achieving numerous intricate and demanding subsea applications.
The Falcon system consists of the following major units:
Seaeye Marine pioneered the use of polypropylene in the construction of ROV frames and continues this development with the Falcon. This material is robust, buoyant, easily drilled and machined and is corrosion free. The Falcon’s modern ‘open frame’ design allows easy access for service and maintenance, and the easy addition of standard bolt on accessories including cameras, sonars, tracking systems and a single function manipulator. Custom designed under-slung modules can also be added for task specific tooling. 316 stainless steel fittings are used throughout.
Brushless DC thrusters have been used on all Seaeye ROVs since 1987 when the company first introduced this technology to the offshore oil and gas industry. These thrusters have drive electronics with velocity feedback for precise and rapid thrust control. A fast PID control system and a solid-state rate gyro for enhanced azimuth stability also prevent overshoot on a change of heading making this vehicle so easy to fly.
The Falcon MCT01 thrusters are magnetically coupled and are water cooled. Having no moving shaft seals they are extremely low maintenance, reliable and ideal for use in sensitive areas such as fisheries and on reefs.
4 Vectored Horizontal Thrusters and
1 Vertical Thruster
The open frame and clutter free layout between decks in the Falcon provides the clearest water flow to 4 horizontal vectored thrusters positioned for optimum thrust and control in all directions and superior station keeping in strong cross currents.
DISTRIBUTED INTELLIGENCE CONTROL SYSTEM & ROV JUNCTION BOX
The Falcon is the first ROV in its class to have a distributed intelligence control system. This is a multi-drop network that allows up to 128 devices to be connected together on a single RS 485 serial network and to be individually controlled by a master processor. Every controllable device on a Falcon, such as thrusters, lights, camera, tilt motor, navigation pod and manipulator pod, contains its own microprocessor and interface and is called a 'node'. Each of these 'nodes' is separately addressed on the network and controlled by the master processor in the surface unit. Every node is fully isolated to maximise system reliability and each is connected into the vehicle junction box PCB using a common through bulkhead connector. The JB printed circuit board provides each node with its own fused power supply and telemetry. The junction box also houses the video line driver for Falcon. This use of distributed intelligence does away with the traditional ROV electronics pod packed with interface circuit boards and frees up space while significantly reducing the weight of the vehicle.
BUOYANCY & PAYLOAD
Buoyancy and payload is provided by securing buoyancy blocks of the appropriate depth rating to the chassis below an easily removable hydrodynamic cover. The cover also provides protection to electronics housings and cabling routed along the top of the buoyancy to the junction box. This also provides exceptional ease of access for maintenance. Mounting points on the vehicle skids are provided for lead ballast to trim the vehicle's centre of gravity and buoyancy.
CONTROL SYSTEM DIAGNOSTICS
Full system diagnostics are provided: A software routine automatically checks each node when the system is powered up and alerts are provided on the video overlay to warn the operator. The full characteristics of each node can also be interrogated individually from the surface unit. Local diagnostics are also provided for each node in the junction box with colour coded LEDs confirming fuse and telemetry status.
A high resolution fixed focus colour camera is fitted to a camera platform that can be tilted ± 90 degrees. An optional second camera can be added. The F2 Fibre Optic Pack in the Falcon DR which is optional in standard Falcons, provides 3 simultaneous video channels. Panning the camera is achieved by turning the vehicle which it can do within its own length.
Standard Camera Specifications
Camera Resolution 480 TVL
Min. Scene Illumination 0.2 LUX (F1.4)
Pick Up Device 1/2" CCD Image Sensor
Lens 1/2" Aspherical 3.8mm lens, wide angle
fixed focus, Horizontal Field of View 91°
Weight: In Air: 0.82 kg In Seawater: 0.42 kg
Communication Protocol: RS485 ½ Duplex
Connector: 5-Way Connector
Scanning Frequency: 15.625 kHz by 50 Hz
Video Output: 1V peak to peak, 75 ohm
Video S/N Ratio: Better than 50 dB
Resolution: 540 Television Lines
Sensitivity: 0.35 Lux
Lens Mount: “C” Mount
Power Requirement: 24 VDC (± 10%) 3.6 W
NAVIGATION SYSTEM & AUTO FUNCTIONS
All navigation sensors and aids are housed in a single hardened aluminium pod. Auto depth and heading are supplied as standard. A pitch and roll sensor is included and may be selected for display on the video overlay.
Compass Accuracy ±1°
Depth Sensor Accuracy ±0.5% of FSD
Gyro 0.1 °/s
Surface Update Rate <100 ms
SURFACE EQUIPMENT INPUT POWER REQUIREMENTS
Single phase universal auto sensing input, 100-270 VAC at 2.8 kW.
FALCON SURFACE UNIT
The Falcon’s switch mode power supplies, control system, fold out 15 inch LCD monitor and keyboard are installed in a 19 inch rack transportable case. All connections to the surface unit are on the front panel for easy access including the hand controller with its 5 metre flying lead. The power output from the surface unit to the umbilical is a galvanically isolated 500 VDC protected by a L.I.M. (Line Insulation Monitor).
VEHICLE CONTROLS ON THE HAND CONTROL UNIT
The following vehicle controls are provided on the hand controller:
• Single 3 axis joystick for horizontal vehicle control
• Rotary trim controller for vertical thrust up or down
• Push button dive and surface control
• Thruster enable / disable and power setting
• Camera selection
• Rotary control for lights intensity
• Auto pilot function for both heading and depth
• Auxiliary vehicle controls (including manipulator open / close).
A video overlay system is incorporated as standard providing the following information to the pilot:
• Compass heading
• Camera tilt position
• Auto pilot function status
• Umbilical turns counter
• Vehicle pitch and roll
• CP reading
• Date and time
• Lat and Long
• Free text using a QWERTY keyboard.
The Seaeye Falcon 12140 System is delivered with a 400 metre umbilical cable, Type 5733 multi cored electrical umbilical cable is used for carrying Power, Telemetry Control and Video signals from the Surface Power Supply (PSU) to the vehicle. Telemetry control is routed through the PSU to the Surface Unit.
The fitted umbilical is used for the following:
• DC power distribution.
• Video signals.
• Vehicle telemetry.
• Sonar data.
• CP data.
MANIPULATOR TOOLING SKID
The Manipulator System contains the following equipment:
• Auxiliary Power Supply Unit (SI-HYD01).
• Valve Pack (HLK-70150-M).
• Power Pack (HLK-91000/48).
• Manipulator Assembly (HLK-43000)
• Compensation Bladder.
• Bleed and Fill Valves.
The Manipulator Assembly is mounted on the Falcon Tooling Skid. For detailed information on the manipulator system, refer to the Hydro-lek documentation.
ROV HIRE AUSTRALIA FALCON SPECIFICATIONS
System power requirements Single phase
100-270 VAC at 2.8 kW
Umbilical length 400 m
Depth rating 300 msw
Length 1000 mm
Height 500 mm
Width 600 mm
Launch weight 60 kg
Forward speed > 3 knots
Thrust forward 50 kgf
Thrust lateral 28 kgf
Thrust vertical 13 kgf
Payload 14 kg
SONAVISION SV1010 - SONAR
ROV Hire Australia uses the Sonavision SV1010 sonar, which provides unsurpassed acoustic performance and scanning speed as well as being robust, accurate and corrosion resistant. It can operate from our Seaeye Falcon ROV or fixed platforms such as seabed tripods.
FREQUENCY RANGE ADJUSTABLE PERFORMANCE
The SV1010 is the latest addition to the Sonavision range of mechanically scanned sonar’s. They feature state of the art 1:3 piezo-composite transducers providing extremely wide band operation and high sensitivity. The operating frequency is fully tuneable over the appropriate band providing a unique ability to optimise the performance for range or resolution.
The transducers are directly driven from the motor shaft, avoiding the need for a gearbox (which can introduce backlash and inaccurate angular position). The use of micro- stepping motor control allows very small step angles for highest horizontal resolution.
FLEXIBLE CONTROL AND DISPLAY
The Sonavision Control / Display Application software is an easy to use yet powerful package for displaying the images generated by the Sonavision sonar range in addition to other survey sensors available from Sonavision. The software package does not require dongle authorisation simplifying its use in the field.
The most common display mode is PPI (Plan Position Indication) which mimics the display conventionally used in radar (sonar is centred on a 360-degree plan view). This mode is used for obstacle avoidance, general navigation and target sizing / acquisition.
• B Scan is variation of the PPI display, particularly favoured by military users.
• The software also has the Side Scan image view which is unique to Sonavision sonar’s. This powerful mode of operation adds a further dimension to the sonars features, providing the ability to search and survey large seabed areas.
• Finally, the sonar software has an A scan mode which displays echo amplitudes versus time (i.e. range). This can be used to analyse strength but is also useful as a diagnostic tool. Data can be recorded in any display mode and then replayed in the same or any other mode for post processing.
SONAVISION SV1010 SPECIFICATIONS
The SV1010 is the smallest unit in the family, particularly suitable for small ROV applications where it offers an extremely high resolution performance with good range capability. An oil filled hood protects the transducer and motor drive components. Frequency of operation is user selectable within the range 600kHz to 1200kHz. The SV1010 is also available in a 300m rated acetal housing which provides a reduced weight option for use on smaller vehicles.
•Exceptionally compact size
•Mid to Short Range - 2-100m
•Modular design – simplified maintenance
•Optional depth ratings 300m & 3000m
LINQ-QUEST – TRACK LINK 1500 USBL SYSTEM
ROV Hire Australia uses the Track Link 1500 acoustic tracking system with fully integrated high speed acoustic communication capability. Capitalizing on its benchmark broadband acoustic spread spectrum (BASS) technology, Link-Quest provides the end users with solutions for underwater tracking and communication.
ROV HIRE AUSTRALIA