The level of
alert about exceptional
situations should correspond to the risk The level of
alert about exceptional
situations should correspond to the risk
high levels of
alert are achieved by high tonality, high amplitude, and high frequency or repeated tones
The design should consider the
risk of hysteric response to the irritating
alarms, and limited them to areas of highly professional employees
(such as in ICU).
The
alarm sound may include features enabling to identify 2-3 categories of
alarm conditions. If more than three sources are known at design
time, the source identification should rely on other perception modalities (visual, senso-motoric, kinesthetic (tactile,
Wiki ), proprioceptive (
Wiki ) ...
Provide means to analyze the
operators reaction to the alarm, to identify
improper alarms
Avoid nuisance of all kinds, when possible.
Ideally, the rate of
improper alarms should not exceed the rate of helpful alarms
Updated on 18 Apr 2016.