posted on 2018-05-11, 14:02authored byRobert S. Habib Istepanian
Biomedical Telemetry (Biotelemetry) is a special facet of bio-instrumentation which provides
a means for transmitting physiological or biological information from one site to another.
There are numerous situations in which it is desirable to monitor critical physiological
reflexes and responses from freely swimming swimmers or divers.
The design and implementation of a novel multi-channel digital acoustic biotelemetry system
using a single-chip microcontroller is described. It is intended for monitoring the
electrocardiogram (ECG), heart rate, breathing rate and depth of a free swimming diver, but
the system has a modular design that can be adapted for the transmission of digital data
representing any parameter. The use of the microcontroller enables the digital data to be
transmitted in a priority interrupt format from each sensor with programmable pulse width
timing. A portable receiver contains an identical microcontroller and is designed to scan three
crystal-controlled frequencies to provide a logical output for each detected signal. These
signals are captured by a portable data logger and interfaced to a computer for further
processing. This automated arrangement greatly reduces the probability of data error by
increasing immunity to multipath and reverberation effects. [Continues.]
Funding
Committee of Vice-Chancellors and Principals of the Universities of the United Kingdom (Overseas Research Studentship, ORS). Armenian General Benevolent Union (AGBU).
History
School
Mechanical, Electrical and Manufacturing Engineering
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/
Publication date
1994
Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.