1. Check ABP signal quality
Is QRS available
in ECG?
Analyze ECG rhythm & delay time
between ECG & ABP
Modify Signal Quality
Check signal
quality(>05)?
Measure BP and modify averaged
BP data
Accept/Reject alarm according to BP
and signal quality
Yes
No

2. Bio-Signals: ECGII, ECGaVR,
ABP
Pre-Processing Filter
Alarm signal
generated?
Alarm Validation Processing
Alarm
Sounds
Yes
No
No Alarm
Alarm is valid
Alarm is not valid
Visual
Monitor
Visual
Monitor

3. Bio-Signal y(t)
Calculate aoRM: û(y(t-n(t)+1),…,y(t))
Is window size
at min? n(t) =
nmin?
Store value. û is valid.
Increase window size
by 1. n(t) = n(t) + 1
Yes
No
Yes
Fit Test. Is û the
actual median
of the window?
Decrease window size.
n(t) = n(t) - 1
No