General_Specifications.pdf

1. General Specifications

• Vessel o Size – Maximum vehicle length of 6.5 feet, maximum vehicle width of 3.0 feet.

o Weight – Maximum vehicle weight of 150 lbs. including sensor and battery payloads, not including shipping case.

o Speed – Vehicle capable of transit speed of 8 knots. Typical survey speeds shall be 2-4 knots.

o Endurance – Capable of 8 hours of endurance with all hydrographic sensors collecting data at 2-knot survey speed.

o Thrusters – Propulsion thrusters must have debris protection.

o Spares – A field spares kit for common field repairs is required. The field spares kit shall include the following items: Spare thruster, O-rings, cable assemblies, filters, and fins. Additional parts may be included in the field spares kit if typically sold together as a standard spares kit.

o Cart – A cart specifically designed to transport the ASV short distances (e.g.

from truck to a boat dock or shoreline).

o Shipping Case – Shipping case for the vehicle and spares kit. Separate shipping cases for the vehicle and spares kit are acceptable.

o Warranty – Manufacturer’s warranty of at least 12 months from the date of government acceptance.

• Sensors – Vehicle must contain the following sensors. System must be capable of logging data from all sensors simultaneously.

o Positioning System – The positioning system for the vehicle shall be a GPS / inertial navigation system (INS) with the following minimum accuracies (using DGPS correctors):

Horizontal position – Capable of 0.5-meter accuracy.

Roll and Pitch – 0.04 degrees.

Heading – 0.08 degrees (2-meter baseline).

Heave / Delayed Heave – 5cm / 2cm.

RTK Capable o Multibeam Echosounder (MBES) – The vehicle shall have a MBES system that is physically integrated with the INS system. The MBES shall have the following characteristics:

Minimum swath sector of 120 degrees.

Along and across-track beam footprint no greater than 1.8 degrees in both directions (1.8 X 1.8 degrees).

Operational frequency between 300-500 kHz.

Minimum of 256 discrete beams.

Maximum usable depth range of 150 meters or greater.

MBES system shall be hull-mounted.

MBES/INS must be modular and easily removed from the hull for use as a pole –mounted system separate from the vehicle.

MBES system must be able to detect all significant features measuring at least 1m x 1m x 1m in waters up to 20m deep, and a cube measuring 5% of the depth in waters 20m and deeper.

MBES system must include an integrated, manufacturer-calibrated surface sound velocity (SSV) probe.

MBES system must have a published uncertainty model available before the onsite training course dates. Model must contain all variables required by the current version of Caris HIPS and SIPS software used in NOAA (version 10.2.2 at the time of this document).

o Side Scan Sonar (SSS) – The vehicle shall have a SSS system incorporated into its hull. The SSS system shall have the following characteristics:

Operational range scales from 1 to 100 meters.

Operational frequency between 300-500 kHz. The operational frequency shall not be complimentary to the frequency of the MBES system to reduce the possibility of signal interference.

Maximum horizontal beam width of 0.5 degrees.

At a minimum, the SSS system must be capable of ensonifying a 1-meter object 3 times at a survey speed of 3 knots using 100-meter range scale.

2. Software

• Mission Planning Software o Mission planning software must be included with the vehicle.

o Mission plans shall be compatible with the current version of Hypack software used in NOAA (version 2017 at the time of this document).

o Users shall have the ability to create mission plans in the current version of

Hypack. In addition, the vehicle shall be able to read in Hypack created mission plans without conversion.

o Users shall have the ability to monitor coverage in Hypack from both the MBES and SSS systems wirelessly and in real time from at least 1 kilometer away from the vehicle.

Raw Data – All data collected from the MBES and SSS systems shall be natively compatible (direct conversion to HDCS data) with the current version of Caris HIPS and SIPS software used in NOAA (version 10.2.2 at the time of this document).

3. Other Requirements

• Autonomous and Remote Operation o Vehicle must include an autonomous operation module that allows the vehicle to collect data independently, without operator intervention on a preset mission.

o Vehicle must include a remote operation module that can be engaged to override the autonomous mode at any point. System must be capable of data collection in remote control mode.

o Vehicle must contain emergency kill switches to disable operation in the event of communication failure.

• Training – Vendor will provide an onsite training course for up to 5 users. Location of the training course will be in Solomons, MD or Stennis Space Center, MS. The location and dates for training will be determined at the time of delivery, but shall be completed no later than 12 months from the date of delivery.

• Other Hardware – Vendor shall provide a laptop sufficient to run mission planning software and any other required monitoring/battery charging software.