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3G, GPRS and SMS settings are described in further sections. FM3622 communicates with
server using special data protocol. Data protocol is described in “FMXXXX Protocols” document.
FM3622 can be managed by SMS commands. SMS Command list is described in SMS
COMMAND LIST section
.
Module configuration can be performed over TCP or via SMS.
Configuration parameters and modes are described in “FMXXXX Protocols” document.
5.2
Sleep modes
5.2.1
Sleep mode
FM3622 is able to go to Sleep mode after configured interval of time. While in sleep mode,
FM3622 sets GNSS receiver to sleep mode and it isn’t making periodic records (only event
records is being recorded with last known coordinate and sent to AVL server). As a result power
usage decreases allowing saving vehicle battery.
FM3622 can enter sleep mode if
ALL
of these conditions are met:
•
FM3622 has to be configured to work in Sleep mode and Sleep timeout set;
•
Device must be synchronized time with GNSS satellites or via NTP;
•
No movement by motion sensor is detected;
•
Ignition (DIN1) is off;
FM3622 exits sleep mode when if
ONE
of following conditions are true:
•
Movement by motion sensor is detected;
•
Ignition (DIN1) is turned on;
5.2.2
Deep Sleep mode
While in deep sleep mode, FM3622 sets GNSS receiver to sleep mode and turns off
GSM/GPRS/3G module (it is not possible to wake up device via SMS). Despite records with last
known coordinate are being saved and send to AVL server (GSM/GPRS/3G module is turned on
to send data and after that it is turned off again), power usage is decreased to save vehicle’s
battery. Note, that power saving depends on two configurable parameters: send period and min.
record saving period.
FM3622 can enter deep sleep mode if
ALL
of these conditions are met:
•
FM3622 has to be configured to work in Deep Sleep mode and Sleep timeout set;
•
Device must be synchronized time with GNSS satellites or via NTP;
•
No movement by motion sensor is detected;
•
Ignition (DIN1) is off;
•
Min. Record Saving Period (Data Acquisition Mode settings) must be bigger than
Active Data Link Timeout parameter, that FM3622 could close GPRS/3G link.
•
Difference between send period (Data Acquisition Mode settings) and Active Data
Link Timeout must be more than 90 sec., that FM3622 could close GPRS/3G link for
at least 90 sec.
•
USB cable is not connected.
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