additional record with high priority flag and sends event packet immediately to
the server by GPRS. Panic priority triggers same actions as a high priority, but if
GPRS fails, it sends AVL packet using SMS mode if SMS data sending is
enabled
in SMS settings
.
High and Low levels
– define I/O value range. If I/O value enters or exits this
range, DB3 Plug&Play generates an event. “Generate event” parameter defines
when to generate event – when value enters defined range, exits it or both.
Averaging constant
– it is an I/O event delay parameter. In some applications,
there is no need to generate events on every I/O range enter/exit immediately.
Sometimes it is necessary to wait some time interval before event generating.
Averaging constant allows setting I/O event delay (averaging). If I/O value is
entering or leaving the predefined range, it must have the same value for
Averaging constant time. 1 Averaging constant value equals about 100
milliseconds.
Param = AvgConst(sek) * 10. For example, Value 3 = 300ms. In Deep Sleep
mode there is no Averaging.
Note
: I/O element’s “Movement” Averaging constant is
interpreted as Start Move Timeout in seconds (from 1 to 59).
Start Move Timeout – is a time interval required for the
accelerometer to be in the moving state, to consider the vehicle as moving.
5.12.1 Event Generating
Events happen when the value of enabled I/O intersects thresholds (enter, exit
or on both) predefined by High and Low-level thresholds. The table below
defines all available values of I/O settings.
Setting
Value
Priority
low, high
High level
maximum threshold
Low level
minimum threshold