User Guide | COMFORT LwM2M | NB-IoT / LTE-Cat-M1
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Parameters
Description
Default Configuration
Low Threshold Detection
Threshold below which the product
will trigger a sensor measurement
transmission
-
Hysteresis
Hysteresis value for high and low
thresholds
-
Threshold Status
Identifies an error in the
configuration of different
thresholds
-
For non-historical transmission, simply configure the transmission frequency to be equal to the sensor
sampling frequency.
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The content of a message related to periodic transmission and a message related to
threshold exceedance is identical.
When an alarm occurs at time t, all the stored data is sent. An alarm message is therefore
a "regular" message sent before the end of the PUSH mode transmission period.
After sending an alarm message, the periodic transmission timer is reset, meaning that the
next periodic transmission will be sent at "t+PUSH mode transmission period".
These parameters can be configured using the NFC IoT Configurator application or via the LwM2M
server.
Example
The product measures temperature, humidity every 30 minutes and saves the information. The
product performs 8 backups and transmits them every 4 hours.
The 8 measured values from each of the 2 sensors over 4 hours are included in the unique message
sent by the product every 4 hours.
These values are taken into account when calculating the minimum and maximum values measured
by each sensor.
The product triggers an alarm if the temperature exceeds 24°C. This alarm will be disabled if the
temperature drops below 22°C.
There are no alarms for relative humidity.
Configuration of Application Parameters to Use
Parameters
Unit
Value
Description