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.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1993
- Accession Number
- ADA268405
Entities
People
- Harve M. Hanish