A flexible PC-based physiological monitor
G. M. Ghose, I. Ohzawa, and R. D. Freeman
A flexible PC-based physiological monitor.
J. Neurosci. Methods 62: 7-13, (1995).
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(3 figures, 2 tables, 11 pages):
(76 kbytes, PhysMon95.pdf)
The entire source code for the monitoring system is available here:
SCOPE: PC-based physiological monitoring system software
We have developed a flexible physiological monitoring and analysis
system for physiological studies in which data are obtained over
extended periods. Our system uses low-cost personal computer
hardware to concentrate data from existing multiple monitoring
devices. All monitored parameters are displayed on a single screen
and recorded in a single file. The system automates the process
of physiological record keeping by providing continuous displays
of vital signs.
In addition, audible and visual alarms are produced
when vital signs are outside of acceptable ranges, prompting the
experimenter to take corrective actions. The central element of
the system is a program running in a dedicated manner on an IBM PC
compatible computer. The program is written in C and makes use of
a graphics library to display traces and analysis results in real
time on any standard display for the PC. This program assigns the
analog channels of an A/D board to particular physiological parameters
by initially reading a configuration file, which also describes the
alarm conditions and analysis routine for each parameter. All
hardware specific code is isolated into well defined modules. The
program is both highly flexible with regard to different sets of
parameters and highly portable for different experimental and