User's Manual

© 2017 M-Labs Technologies LLC
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3 Software Features
3.1 Basic Software
Items
Requirement
Network Interface
LTE B4, B13
IP Stack
IPV4/IPV6
Upgrade Method
Remote update/ PC tool
Remote Update
Supported – including OMA DM
Power Modes
Supported
AT Commands
Supported
Report
Supported
:
3000 records
Drivers
GPIO
，
LED
，
GPS
，
UART, USB Accelerometer
GPIOs
Interrupt for Ignition Status, Buzzer, Relay
LEDs
GPS Status, Network Status
Watch Dog
Supported
Reset
Soft reset, hard reset, GPS reset, RF reset
Startup Banner
Supported
3.2 Remote Update
The LTE-V supports OTA field upgrades of the resident application. An over the air TFTP
(Trivial File Transfer Protocol) connection is made over a n IP connection. A replacement file is
then transferred from a server to the LTE-V and that file replaces the previous application
image. Additionally the whole stack can be updated using an OMA- DM protocol.
3.3 Power Modes
The LTE-V device supports several power modes that are set by AT commands. In full power
mode the GPS is active and the cellular subsystem will maintain a persistent cellular
connection whenever service is available. IP connection is maintained according to the
configuration of the device.
The device can be put in low power mode whenever it runs on a backup battery or if the external
battery is low or if it is not moving. In low power mode the GPS is not running and the LED’s
are off. The device would return to full power whenever an event occurs that triggers a report.
Those events include:
• Periodic report
• GPIO change
• IP change
• Battery threshold
• Heartbeat
• Watchdog