52
Lifeline 4000 Advanced User Guide (B)
Copyright © 2000 Tunstall Group Ltd.
Inactivity and temperature monitoring
As mentioned in the main Lifeline 4000 User Guide, Lifeline
4000 can be set up to monitor a resident's activity. If a
resident is inactive then Lifeline 4000 will make a call to
the control centre.
Inactivity monitoring is turned on and off using
parameter 11 (see the section on
Messages and warnings
earlier in this chapter). Using parameter 11 for this allows
Lifeline 4000 to remain compatible with older control
centres. The details of configuring inactivity monitoring are dealt with here.
Detecting inactivity
Given the pressure mats and movement sensors needed to detect inactivity Lifeline 4000 is normally
configured for this task by a service engineer. However, the principle of how Lifeline 4000 detects
inactivity is quite simple. Lifeline 4000 uses two simple methods to decide whether a resident has
been inactive. We will call one the
stopwatch method
and the other the
clock method
.
The stopwatch method.
A Lifeline 4000 will have an Inactivity Time programmed into it. The
Lifeline 4000 monitors the movement sensors and pressure mats. Every time one of these is set
off it resets an internal stopwatch. Every so often the Lifeline 4000 will ask the question,
Does the
time shown on the stopwatch exceed the Inactivity Time?
If it does then Lifeline 4000 will raise an
inactivity call. In other words, if the resident is inactive for a period longer than the
Inactivity Time
programmed into their Lifeline 4000 then Lifeline 4000 will make an inactivity alarm call.
Usually, the
Inactivity Time
is set for 12 or 14 hours. It is possible to set the
Inactivity Time
for
just 3 or 4 hours. However, this will cause the Lifeline 4000 to raise an inactivity call every night,
as most resident will spend longer than 4 hours asleep, and hence will not move around their
home. The minimum setting for
Inactivity Time
is 30 minutes, while the maximum setting is 50
hours.
The clock method.
Lifeline 4000 can be programmed with an
Inactivity Start Time
and an
Inactivity
Stop Time
. If we imagine that these are set to 9am and 4pm respectively, then Lifeline 4000 will
expect to detect movement at least once between these two times. In other words, when the
clock reaches the 4pm (the
Inactivity Stop Time
) Lifeline 4000 asks itself,
Has there been any
activity since 9am (the Inactivity Start Time)?
If there has been no activity then Lifeline 4000 will
raise an alarm.
Using the stopwatch and clock methods together.
Let us imagine that there is a resident who is
at risk from a medical condition, but who insists upon living alone. If you use the stopwatch
method you may have to wait 12 or 14 hours before you find out that this person has collapsed
and needs help. If you use the clock method you might also have to wait a long time. The answer
is to use both methods.
The clock times (the
Inactivity Start Time
and the
Inactivity Stop Time
) should be set for the
times when the resident gets up and when the resident goes to bed. Let us imagine that the
Summary of Contents for Lifeline 4000
Page 4: ...4 Lifeline 4000 Advanced User Guide B Copyright 2000 Tunstall Group Ltd...
Page 24: ...24 Lifeline 4000 Advanced User Guide B Copyright 2000 Tunstall Group Ltd...
Page 72: ...72 Lifeline 4000 Advanced User Guide B Copyright 2000 Tunstall Group Ltd...
Page 74: ...74 Lifeline 4000 Advanced User Guide B Copyright 2000 Tunstall Group Ltd...
Page 79: ...Copyright 2000 Tunstall Group Ltd Lifeline 4000 Advanced User Guide B 79...
