ConnectMe Tunstall Vi+ Installation and Programming Manual
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Virtual Sensors
Virtual sensor processing is the technique of combining event information from basic
sensors to produce more intelligent responses and alarms.
Virtual sensors are pre-defined and the customer defines the behaviour of the sensor
within these pre-defined constraints by means of standard parameter based
configuration. The home unit supports three types of pre-defined virtual sensors:
Inactive client (in room)
- The purpose of this virtual sensor is to generate
an alarm if a client has remained in a particular room for longer than a
considered safe period of time (configurable). A client entering the monitored
room is detected by a sensor (Fast PIR or Door Usage Sensor) and a timer is
started. If the timer expires, an Inactive Client event is generated. If the client
leaves the monitored room, before the timeout expires, this is detected by a
suitable sensor and the virtual sensor is reset. The home unit supports four
Inactive Client virtual sensors.
Bed/Chair Absence Sensor
- The virtual bed/chair absence sensor works
like the conventional bed/chair occupancy sensor generating an alarm if a
client has got out of bed (or chair) during a monitoring time window (e.g.
night) for longer than a considered safe period of time (configurable). When
the client gets out of the bed/chair (during the monitoring period), the timer is
started. If the timer expires before the client has got back into the bed/chair
then a Virtual Bed/Chair Absence event is generated. However the virtual
sensor also provides the ability to extend the time period if user activity is
detected elsewhere in the property e.g. client has gone downstairs to make a
drink, therefore reducing false calls. The home unit supports two Bed/Chair
Absence virtual sensors. It is also possible to set an alarm to be raised if the
user does not go to bed or fails to get up out of bed at a configurable time.
Different Not In/Not Out times can be set for weekdays and weekends.
If the virtual bed sensor is used with an X10 controller and lamp module the
lamp can be set to illuminate for a number of hours before the monitoring
period starts.
Property Exit Sensor (PES)
- The virtual property exit sensor works in the
same way as the conventional property exit sensor however a simple Fast
PIR and door usage sensor can be used to create the complete solution. The
sensor generates an alarm if a user has left the property, during a monitoring
time window, for longer than a considered safe period of time (configurable).
When the client leaves the property (during the monitoring period), the timer
is started. If the timer expires before the client has returned to the property
then a Virtual PES event is generated. A quick code (650x) is provided to
allow a carer etc. to leave the property without causing an alarm to be raised.
This quick code is keyed into the series telephone connected to the home unit
and disables the Virtual PES for the number of minutes specified by x to give
enough time for the carer to leave the property. The home unit supports a
single Virtual PES which can be used to monitor multiple doors.
It is also possible to monitor weekdays, weekends or
both
.
NOTE:
The home unit’s clock must be set to operate virtual sensors.
