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Filling pressure of self contained breathing apparatus (SCBA) is told the user via voice which is stored in a voice storage option of a portable twoway-radio.
Motorola Inc. May 2000
English (United States)
This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately
84% of the total text.
CONTAINED BREATHING APPARATUS PRESSURE CONTROL WITH VOICE STORAGE
Michael Weyrich and Alfred Caspers
pressure of self contained breathing apparatus (SCBA) is told the user via
voice which is stored in a voice storage option of a portable twoway-radio.
paper describes improvements in the field of SCBA usage for firemen or other
workers which have to use breathing units with limited usage length.
TO BE SOLVED
a SCBA has an analog or digital pressure meter which shows the user the air
pressure that is left to use. For firemen it is difficult in some cases to read
this pressure for example if there is much smoke of a fIre around, in the darkness
or if the SCBA is worn under some protection clothing against aggressive
chemicals. It is important for the
the user of the SCBA that he always knows the pressure of the air which is
SOLUTION TO THE PROBLEM(S)
SCBA already have a digital pressure display. It is possible to build a port
into this unit to connect a line to a two-way-radio. Then the actual pressure,
which is transmitted to the unit as an analog or digital value, is checked and
at some predefined levels or at predefined time intervals the user is told
about the pressure by the radio which activates predefined messages that are
stored in the voice storage option.
data can also be transmitted, either as digi- . tal or analog data o...