IDD-213L User Manual
14
Data transmission between device and the server can be encrypted with AES 128bit,
the AES key is generated by device randomly and sent to the server with encryption
of RAS 2048bit. Each time device logs into the server it synchronizes the AES
key with the server. Encryption is disabled by default.
5.3 WiFi Hotspot
Up to 8 WiFi enabled devices can be connected to share high speed 4G LTE network.
5.4 Auto APN Identification
Device builds in an APN list of major telecom operators, in most cases APN can
be indentified automatically.
5.5 Location Inquiry
Upon receiving location inquiry message from server or via SMS, device reports
GPS data immediately.
5.6 Regular GPS data reporting
GPS data can be sampled by 3 means: by time interval, by distance or by heading
change. They can be enabled or disabled separately, only sampled by time interval
is enabled by default.
The sample rate for time interval can be 2-600s and default setting is 30s, for
distance interval can be 50-5000m and default setting is 500m, for heading change
can be 5-90
°
and default setting is 15
°.
There can be single or several groups of GPS data in one GPS message, determined
by groups of GPS data per message, device will not report GPS message until it
has collected specified groups of GPS data. Groups of GPS data per message can
be 1-30 and default setting is 1.
For example, sampled by time interval and sampled by distance are enabled, and
the respective settings are 10s and 500m, groups of GPS data per message is 5.
Assume that vehicle is running at speed of 72km/h (20m/s), then it takes 25s
to run out of 500m, so GPS data are sampled at 10th, 20th, 25th, 30th, 40th second
and reported at 40th second as 5 groups of GPS data have been collected at that
time.
The suggested minimal interval for GPS report is 10s. For example, if only sampled
by time interval is enabled, then the settings might be 10s of sample rate and
1 group of GPS data per message, or 5s of sample rate and 2 groups of GPS data
per message.
5.7 Regular G-Sensor Data Reporting
Device reports G-Sensor data (g-value of X/Y/Z axis) according to configured
time interval, this function is disabled by default.
The sample rate can be 200-6000ms and default setting is 1000ms.
There can be single or several groups of G-Sensor data in one G-Sensor message,
determined by groups of G-Sensor data per message, device will not report