BotCam System Design

Key Features:

  • Fully Automated - Camera On/Off, Record Start/Stop, Bait Release
  • Ambient Light Recording to 350 meters
  • Stereo-Video Images for High Precision/Accuracy Measurements
  • Operational on Multiple Bottom Types Including Steep Slopes and High Rugosity
  • Compact Design - Deploy and Recover from a Variety of Vessels Without the Need for Mechanical Systems
  • All Systems Depth Rated to 500m
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  1. Frame:
    • Material - Aluminum
    • Size - 48" x 22" x 18"
    • Bait Arm - 48" Long
    • (1) Syntactic Foam Blocks *Incompressible Buoyancy
  2. Cameras:
    • Navigator - Ultra Low Light Sensitivity
    • ½"CCD (Charge-Coupled Device) Sensor
    • 3.4 x 10-4 Lux Faceplate Sensitivity
    • Sensor Elements - 768 x 494 Pixels
    • Monochrome - Color Cameras Not Used Due to Filtering of Light at Target Depths (130 - 350 meters)
    • Manufacturer - Remote Ocean Systems (ROS)
  3. Electronics:
    • Viperfish Deep - Video Capture, Storage and System Controls
    • Video Input - Composite, Video Output - Digital
    • Battery Life - ˜ 4 Hours Recording with 2 Cameras
    • Hard Drive - 80GB ˜ 20 Hours of Stereo-Video
    • Max Resolution - 720 x 486
    • Max Frame Rate - 30 Frames Per Second
    • Manufacturer - Deep Development Corporation
  4. Temperature and Pressure Recorder:
    • SBE 39 - Independent Recording Device
    • Temperature
    • Pressure
    • Manufacturer - Seabird Electronics
  5. Acoustic Release:
    • Oceano 500 - Shallow Water Release
    • 500 kg Static Load
    • 200 kg Release Load
    • 500 Meter Max. Depth
    • Manufacturer - Ixsea
  6. Bait Release System:
    • (1) 1.7 L Niskin Bottle *Seals bait until programmed release
    • (2) SubSea Sonics Burn Wire *Controlled corrosion process releases strings on one side of bottle; surgical tubing pulls caps off, releasing bait.
    • (3) Burn Wire Relay (BWR) Sexton Photographics *Battery pack and relay switch. This unit receives a signal from the electronics unit allowing a current to flow to the burn wire.
  7. Stereo-Video Sync (SVS) Device:
    • Independent Device Used to Synchronize Images in Time for Stereo-Video Measurements.
    • LED Lights Flash at Frame Rate of Cameras
    • Manufacturer: Sexton Photographics LLC
  8. Surface Signature:
    • Surface Line - Floating 3/8" "Blue-Steel"
    • Surface Signature - "High Flyer" *18' Aluminum Pole, Flag, Radar Reflector, Orange Mooring Ball, Seimac Radio Beacon and Strobe
  9. Auxiliary Can:
    • Temporary Component used to house industrial timer used to remotely turn the system on/off. A similar housing may be used in the future for external batteries.
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Bait Release System. The top image shows the bait release container (1.7L Niskin Bottle) closed. The bottom image shows the bait release container immediately after opening. A mixture of ground-up squid and opelu (bait mixture) is shown exiting the container.
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Schematic of BotCam deployed. A "High Flyer" is attached to a mooring ball to create a grappling line target for recovery. A line weight is used to remove wave action from the line acting on the BotCam. The unit can be recovered using an acoustic release or via line haul. *Note: Not to Scale.
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The BotCam can be deployed and recovered from a wide variety of vessels. The top image shows the BotCam being recovered from the Wailoa (Cates International Charter), a 46' Australian Catamaran. The bottom image shows the BotCam being deployed from the 224' NOAA Ship Oscar Elton Sette.