System Description

TD 93025US
9 May 2019 / Ver. I 94
System Description
teleCARE IP
9.13.2 Supervised Exit Detection (Buddying)
The wireless module of a resident can be configured to allow “All staff members” or just
one single staff member to act as buddy.
1 A resident approaches a normally unlocked door which has an exit beacon (Active NILF). The
NILF periodically transmits an LF signal containing the NILF ID which is received by the resident’s
NITX mobile transceiver.
2 When the NITX receives the exit beacon ID signal it transmits an RF signal which
contains the resident’s NITX ID and the ID of the exit beacon. This message is received
by the NIRX that is mounted on the NIRC3 room controller.
3 A carer accompanies the resident in the area of the normally unlocked door with the exit
beacon. The LF signal containing the NILF ID is received by the carer’s NITX mobile transceiver.
4 When the NITX receives the exit beacon ID signal it transmits an RF signal which
contains the carer’s NITX ID and the ID of the exit beacon. This message is received by
the NIRX that is mounted on the NIRC3 room controller.
5 The NIRX then transmits a message which includes the identity of both NITXs and the identity
of the NILF to the wireless server (NISM2) for processing. If the residents NITX ID and the carer’s
NITX ID is recognized as a “Buddying” combination then the NISM2 does not send a message
to the NIRC3 room controller to lock the door. The door remains unlocked and the resident
accompanied by the carer can pass through the door.
6 If the carer’s NITX has exit detection configured for this location, the presence status of the NITX
of both the carer and resident will be set to “absent”.
Note: If the resident is not accompanied by a carer, or the resident and carer are not
recognized as a “Buddying” combination (in a single buddy configuration only), then the
NISM2 will send a message to the NIRC3 room controller to lock the door (as shown in
example “Wander Control Sequence with Door Control (Closed Door)” on page 88).
Note: An exit beacon cannot be used to return the state back to “Present” when a resident
arrives back at the site. For returning to the “Present” state, an active location beacon that
is not configured as exit beacon is required.
See “Returning at the Site” on page 95.
Note: If a system only consists of a teleCARE wireless infrastructure, access control will not
be possible since locking or unlocking doors requires hard wired peripherals.