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Artemis - Seascape Subsea BV

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Artemis

Artemis is a modular handheld console that can be configured as a diver target detection sonar and GPS underwater navigation aid.

Primarily designed to assist commercial and search-and-rescue divers in localizing and relocating objects on the seabed, Artemis has also been specifically optimized for use by Naval Mine Clearance and EOD Divers to relocate items of ordnance as an alternative to conducting a tactile or circular search around a known datum.

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Desciption

Typical uses for Artemis are search & relocation of…

  • Unexploded ordnance by navy mine clearance divers, commercial EOD divers, etc.
  • Seabed infrastructure within the offshore oil & gas environment (e.g. pipelines, well heads, structures).
  • Missing persons, lost property, vehicles, aircraft, wrecks by police or search & rescue divers.
  • Seabed/lakebed antiquities by marine biologists, archaeologists, sports divers, etc.

Artemis is intuitive and straightforward to use, as the interface has been designed by divers for divers. The user can quickly interpret information presented via the simple menu interface and graphical display. Sonar, Navigation and other apps are selected and controlled via a simple 5-button interface.

Prior to diving, the Artemis Manager PC software application allows creation of “Mission” files, containing navigation waypoints that the diver can choose as destinations during the dive.

When the diver enters the water, an intergrated immersion sensor automatically detects the start of the dive and starts logging data from the sonar, navigation system and other sensors into a “Dive-Log” file. Additional navigation markers can also be added to the log-file by the diver as they encounter other targets or locations of interest.

After the dive, using the ‘plug-and-play’ USB connection, data can be transferred from the internal Flash storage on Artemis and a Microsoft® Windows® based PC or laptop. The Artemis Manager software then allows reviewing of the dive-log data, synchronising the sonar imagery with the divers position and heading on a navigational chart. Data can be exported in a variety of formats for further use and analysis by third party software applications.

Features
  • Forward Looking Sonar
  • GPS Navigation System & Float
  • Depth, Heading, Attitude & Immersion Sensors
  • Logging of Sonar, Navigation & Dive Data

Specifications

Housing
Dimensions
:
340mm(L) x 240mm(W) x 125mm(H)
Weight
:
~2.6kg in air, ~0.8kg in water (inc battery)
Weight (with GPS Skid)
:
~4.3kg in air, ~0.6kg in water (inc battery)
Construction
:
Black acetal plastic
Connectors
:
Fischer UltiMate series connectors: 1 x 2 pin DC power. 3 x 4 pin Peripheral connector (switched output power and serial communications). 1 x 7 pin USB connector (to standard USB ‘A’ type plug)
Operating & Storage
:
-10°C to +35°C
Operating Depth
 :
100msw (seawater), 11 Bar (Abs)
Electrical
Power Supply
:
16.8V DC nominal from supplied battery pack (or 7V to 28V DC input range from external source)
Processor
:
150MHz low-power consumption ARM processor
Display
:
Tilted 3.5 inch, 320 x 240 pixel, 16-bit colour Liquid Crystal Display
Features
Data Storage & Logging
:
Internal 16Gb non volatile Flash memory (other capacities available on request). Data Logging capacity (assuming approx 2Mb per minute) > 100hrs on internal storage.
Integrated Sensors
:
Pressure sensor for depth calculation. Attitude and Heading reference system (comprising pitch and roll, digitally gimballed electronic magnetic compass and rotational rate gyros). Battery voltage level indicator
User Interface
:
5 solid-state piezo button interface for menu navigation and parameter control
Communication Interfaces
:
3 switched power RS-232 serial ports (for connection to Sonar and GPS modules). USB port for connection to a PC (appears as a pen-drive style mass storage device for downloading logged data files)
Sonar
Operating Frequency
:
Chirped 650kHz to 750kHz
Beam Geometry
:
35° vertical, 3° horizontal
Range Settings
:
From 1m to 100m in preset steps (1m, 2m, 5m, 10m, 20m, 30m, 50m, 100m)

GPS Tactical Float

Housing
Dimensions
:
360mm(L) x 110mm(W) x 120mm(H) (excluding wound cable)
Weight (stand-alone)
:
~1.7kg in air, ~0.2kg positively buoyant in water (float attached)
Weight (attached to Artemis)
:
~4.3kg in air, ~0.6kg in water (float attached)
Construction
:
Black acetal plastic
Tether/Cable Length
:
40m (for other lengths consult factory)
Operating & Storage
:
-10°C to +35°C
GPS Receiver
Type
:
GPS L1 C/A-code, SPS. 66 acquisition and 22 tracking channels
Sensivity
:
High Sensitivity : -148dBm (Cold Start Acquisition), -165 dBm (Navigation)
Data Output
:
RS232 Output, 9600baud, NMEA protocols (RMC, GGA, GSV, GSA), fix rate at 1Hz
Datum
:
WGS84

Battery Pack & Charger

Battery Pack

Battery
Configuration
:
16.8V, 2.2Ah capacity
Chemistry
:
Rechargable Nickel Metal Hydride (NiMH)
Operating time
:
Approx 5 to 6 hours (with Sonar and GPS connected) from a charged state
Charging time
:
No more than 7 hours from a fully discharged state
Safety
:
Integrated thermal (94°C) fuse and electrical (5A) fuse
Environment
Discharge Temperature
:
-10°C to +35°C
Charging Temperature
:
10°C to +30°C
Storage Temperature
:
-10°C to +35°C (elevated temperatures lead to greater self discharge rates)

Battery Charger & International Adapters

Electrical
Mains input
:
90-264V AC, 50-60Hz
Output
:
Multi-stage charge regime (with over charge protection, top-off timer and trickle charge)
Housing
Dimensions
:
90mm x 45mm x 32mm
Construction
:
Black ABS plastic
Indicators
:
3-colour charge state LED
Environment
Housing Rating
:
IP41
Operating Temperature
:
-20°C to +40°C

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