Sealink. A Multi-Channel Telemetry System to Monitor Divers

Abstract

UFI has completed the design, fabrication, and evaluation of a prototype underwater physiological data acquisition and data telemetry system. The system monitors Heart Rate, Respiratory Rate, Integrated EMG (to reflect shivering), Core (Body) temperature, 4 separate skin temperatures, Ocean temperature, Ocean pressure(diver depth), and telemetry system battery status from a freely swimming diver for a period of over 11 hours. Underwater transmission range is over 1500 feet at an operational depth of over 200 feet. Wide band FSK and error correction software enables transmission of accurate information even when the data are contaminated with up to 72% errors from external noise. A floating data collection buoy receives the ultrasonically transmitted data, stores it in a nominal 10K byte cache memory and retransmits via, UHF radio to a remote computer for data storage and analysis.

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Document Details

Document Type
Technical Report
Publication Date
May 15, 1993
Accession Number
ADA268405

Entities

People

  • Harve M. Hanish

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Engineered Resilient Systems
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acquisition
  • Circuit Boards
  • Communication Systems
  • Computers
  • Data Acquisition
  • Data Transmission
  • Data Transmission Systems
  • Digital Communications
  • Digital Data
  • Fabrication
  • Printed Circuits
  • Simulators
  • Telemetry
  • Test And Evaluation
  • Test Equipment
  • Test Facilities
  • Transducers

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Radio communications and signal processing.
  • Underwater engineering and Marine Technology.