Personal Emergency Signal (PES) Functions
Localisation functions
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Localisation functions
With the localisation functions, the personal emergency signal centre can determine
the location of the radio set. This requires that the radio set is equipped with a
receiver for the localisation systems such as the inductive localisation beacon
system, Bluetooth (FT5 only) or GPS/GNSS localisation that are in use. The location
of the radio set can be localised by one or more systems simultaneously insofar as
the required localisation receivers has been configured and activated.
For inductive localisation beacon localising, inductive localisation beacons (ILBs)
must be permanently installed on the premises of the personal emergency signal
system, Bluetooth localisation is achieved in a similar manner by means of BT bea-
cons. The radio sets store GPS (FT4/FT5) and GNSS (FT5 only) location data or the
identifier of the inductive localisation beacons (ILBs) and the BT beacons when the
radio sets are within range of the beacons.
The localisation functions can be used for the following application scenarios:
Localisation of the radio set in the event of an alarm
Tracking of the radio set in an alarm situation (p. 121)
Localisation of the radio set in the event of an alarm
After a personal alarm is triggered, the radio set transmits the codes of the last three
inductive localisation beacons (ILBs), or of the BT beacons or the GPS/GNSS posi-
tion data in the case of satellite localisation, to the personal emergency signal control
centre. By analysing these codes, the staff at the personal emergency signal control
centre can determine your location and reconstruct the path you have covered with
the radio set directly before the alarm was triggered.
Tracking of the radio set in an alarm situation
After a personal alarm is triggered, the radio set remains in in alarm condition until
the alarm is terminated, see section „Alarm and alarm processing“ (p. 133).
If the radio set detects additional codes of inductive localisation beacons (ILB), BT
beacons or GPS/GNSS position data, e. g. because you are fleeing from a danger
while carrying the radio set after triggering the personal alarm, the radio set will also
send these codes to the personal emergency signal control centre. In this way, the
staff at control centre can trace the escape route during the alarm condition.
