ABSTRACT
Enormous number
of people die
due to lack
of medical aid
at the appropriate
time as in therti
case of road
accident in the remote areas , sudden imbalances in a person living alone in his house or heart attacks
in the nights.
In
such cases , the whole
accident may go
unnoticed and by the
time it is discovered, it
may have been
too late . We suggest a slight
modification in the existing
cellular system , which can
help in attending
to such situations immediately.
Whenever
a human body
is affected , physically or
mentally , there is a
change in the
pulse rate . In the
case of serious
problems , there is a
drastic change in
the pulse rate . In
the system designed
by us , we sense this
change and compare
it with normal
level to arrive
at conclusion .
An
abnormality detector with
a short range
transmitter (SRT) is attached to
the wrist watch
of the user . Abnormality detector
periodically keeps track of
the pulse .Whenever there
is abnormal change , it
activates the
SRT which then
sends signal to
the short range
receiver (SRR) incorporated in
the cell phone . Then
cell phone sends
help signal to
the Mobile Telephone
Switching Office ( MTSO ) . The cell
phone is then located by
Tri – Circle method using
the received signal's
strength by a base station
and two towers
in a cell site
and medical assistance
is sent.
The cell
phone is also
made to ring an
alarm which can
help the medical team to
reach the location
with ease. Thus invaluable human
lives can be saved
.
A
notable advantage of
this system is
that even though
the cell phone
is switched off , SRR
switches it on
using the Squelch
circuit .Hence , the system works
even when the
cell phone is
turned off.Download(.doc)
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