M Labs Technologies TV02 Users manual

Download

Page 1

1 / 15

User

Manual

For

LTE-V

LTE-VB LTE-V -BA LTE-VB -BA

Vehicle Tracking Device

April 15, 2017

The information presented in this document is strictly confidential and contains trade secrets and other confidential information that are the exclusive property of M-Labs Technologies, LLC

R1.0

Page 2

2 / 15

Author Zeev

Revision Changes

1.0

Initial version

Date 2017-04-15

Page 3

3 / 15

Contents

1 Introduction ...................................................................................................................................... 4

2 Hardware Design ............................................................................................................................ 5

2.1 Basic Hardware....................................................................................................................... 5

GPS .................................................................................................................................................. 6

GPIO ................................................................................................................................................ 6

LED’s ................................................................................................................................................ 6

UART ............................................................................................................................................... 6

USB .................................................................................................................................................. 6

Relay Driver ..................................................................................................................................... 6

Power and Battery .......................................................................................................................... 7

Timers ............................................................................................................................................. 7

Watchdog ........................................................................................................................................ 7

Accelerometer ................................................................................................................................ 7

2.2 Basic RF Performance ................................................................................................................. 7

2.3 Certification and Safety .......................................................................................................... 8

3 Software Features ......................................................................................................................... 11

3.1 Basic Software ...................................................................................................................... 11

3.2 Remote Update ........................................................................................................................ 11

3.3 Power Modes ........................................................................................................................... 11

3.4 AT Commands ........................................................................................................................... 12

Command Summary ..................................................................................................................... 12

3.5 Ack’ed Mode ............................................................................................................................. 13

3.6 Event Report Format ................................................................................................................. 14

3.7 Reset ......................................................................................................................................... 14

3.7.1 Context Preservation .......................................................................................................... 14

3.8 Startup Banner ......................................................................................................................... 14

4 Test Method .................................................................................................................................. 15

4.1 Hardware .............................................................................................................................. 15

4.2 Software Test ........................................................................................................................ 15

Mechanical Structure (mm) .................................................................................................................. 16

FCC Statement ...................................................................................................................................... 17

RF Exposure Warning Statements: ........................................................................................................ 17

IC STATEMENT ....................................................................................................................................... 17

Page 4

4 / 15

1 Introduction

The LTE-V and derivatives are self-contained vehicle tracking device that combines GPS location with LTE CAT1 cellular connectivity. It is primarily a location reporting device that responds to requests (user, server) and events (timers, geo-fences). Data reports consist of a single record that contains all location data and system status.

The device comes pre-configured from the factory. It is ready to use. The LTE-V appears to a user or a server application as an endpoint device. It can be queried, updated and configured either through a serial connection, an over the air IP connection, or through SMS messaging. The LTE-V presents itself over these connections as an enhanced cellular modem with attached functional elements. These elements include:

• GPS location engine

• Accelerometer

• Input/outputs dedicated for ignition, relay, buzzer, and general purpose

• Serial UART port

• Timers

• Watchdog lockup protection

• Power management

• Event reporting

• Voltage monitoring

Access to these elements and general purpose interfaces is done through an extended AT command set. Configuration parameters are stored to flash memory and are automatically used

on the next power up event. For more details, please reference the AT Command document.

Diagram

This product is designed based on the Sequans Communications VZ120 Q (4G LTE CAT 1, wireless

Page 5

5 / 15

Items

Requirement

VZ120Q Baseband Module

Based on SQN3223 baseband chipset and

Cellular Network Interface

Support for LTE B13 and B4

Frequency

B4(MHZ): TX(1710-1755) RX(2110-2155)

Antenna

Internal Dual Antennas（Main & Diversity

GPS Antenna

Dedicate high performance ceramic antenna

UIM requirement

Support

2FF SIM Interrupt Mode

Battery Monitor

Internal analog input

Build in battery manager

Yes

Interface

Debug UART

Application UART

USB

12V DC Input（1A current

Ground

Relay Drive (12V Output ,500mA current)

Dedicated Output for buzzer control

Ignition Input

GPIO

Dedicate Timers

Yes

Watchdog

External HW via MCU

Motion Detect

Supported（GPS/G-Sensor

LED

2 LED Supported

Battery

Build in battery（80MAH Lion

Working Time

4 hours

Power switch

Power Cable color

10 colors

Power Cable connector type

10-pin connector

Power Consumption

< 5Watts

data/SQN3223) b

aseband module, which includes an ARM CPU, 4M serial flash,

LTE_B2&B4&B12 RF transceiver, and triple-band RF front end circuit.

Antennas for cellular and GPS are internal to the device.

2 Hardware Design

2.1 Basic Hardware

SQN3241 RF 4G Transceiver

B13(MHZ): TX(777-787) RX(746-756)

[B4&B13]

）

：

No Support：Hot Plug/Unplug

）,

）

1- RED; 1- Green

）

The LTE-V provides support for specialized hardware features through extended AT commands. The features supported include the following:

Page 6

6 / 15

Red

GPS

On: GPS satellites acquired and Locked

Off: No power or GPS subsystem fault

Green

Cellular

On:

LTE initialization but no data connection available

Off: No power or LTE subsystem fault

GPS

GPS location functionality is provided by th e device GPS receiver. NMEA GPS records can be extracted in real time from the unit via the UART co nn ection using sp ecial debu g comman ds that are outside the scope of this document.

GPIO

One dedicated input, two dedicated outputs, and one general purpose IO are presented to the external generate a report or drive logic levels to external devices. These lines are 2.8V logic level and are 16V tolerant. These pins default to input and are pulled down representing 0 when disconnected. They should be asserted to a known value if used.

environment

on the main connector. They are capable of providing system interrupts to

LED’s

Two LED status indicators are provided to verify correct installation and operation. The status LEDs are color coded and directly convey the status of the cellular and GPS subsystems as described in the table below. Their valid operation also indicates operational status and power.

LED

Function

Status

Flash Slow: GPS satellite search is in progress

Indicates LTE connection is made

Connection

The LTE-V provides user control allowing the LEDs to be extinguished once installation is verified. This feature reduces power and further conceals the LTE-V Tracker from untrained parties wishing to defeat its operation.

Flash Slow: LTE subsystem initialization in progress Flash Fast:

UART

There are two UART’s provided. A debug UART port is provided for AT commands, data interaction and optionally for application specific control. A second, application UART is provided to be used as an expansion port for sensors and other peripherals

USB

The USB port is provided for provisioning or debug.

Relay Driver

A 500mA sink capable output pin is provided. This pin is meant to drive a relay coil indented to interrupt the starter solenoid relay for the ignition circuit to a car.

Page 7

7 / 15

Remark

Main: <= -91dBm Div: <= -88dBm

RX receive sensitivity conducted – TIS

Board RF Specification

LTE_B4 RX

B4 Frequency range

2110-2155MHZ

Maximum output power

23dBm

Minimum control output power

<-40dBm

OBW

8.87MHZ (10MHZ Nominal)

IQ OFFSET

< -55.6dbc

Power and Battery

The battery monitor is internal analog input scaled such that the DC value of the power input pin to the LTE-V system is measured. This value is scaled to span the most significant 8 bits of the A/D and consequently covers a scale from 0 to 25.5 Volts.

Timers

Timers resident on the baseband chip generate periodic interrupts for power down wakeup, watchdog support, periodic report generation and other timer related functions.

Watchdog

SQN3223 chipset provides internal software Watchdog. Also the LTE-V includes an MCU that acts as a failsafe external watchdog. The MCU power cycles the system, if no activity is detected for 1 hour.

Accelerometer

The accelerometer can be used for motion detection and driver behavior monitoring.

2.2 Basic RF Performance

Items Requirements

TRP free space B4/B13: >= 20 dBm TRP free space TIS free space Antenna loss <= -3dB TRP-TX Power Conducted Antenna Loss

Sensitivity Dynamic range

<= -3dB

-99.5dBm (10MHZ_50RB_Downlink)

-23～-99.5dBm

LTE_B4 TX

B4 Frequency range Maximum Frequency error

1710MHz～1755MHz ±10Hz

TIS free space

ACLR

UTRA2: 46.48 UTRA1: 41.21 E-UTRA1:39.23 UTRA2: 43.87 UTRA1: 40.51 E-UTRA2:38.05

Page 8

8 / 15

<3%

LTE_B13_RX

-100dBm (10MHZ_50RB_Downlink)

Maximum output power

23dBm

Minimum control output power

<-40dBm

IQ OFFSET

< -54.7dbc

GPS

L1-band (1.57542GHz)

Items

Requirement

Altitude:

FCC Certification

FCC 47 CFR Part 22 and Part 24

Other Certifications

EVM

Frequency range Sensitivity Dynamic range

LTE_B13 _TX

Frequency range Maximum Frequency error

ACLR

OBW

EVM

Frequency Support

746MHz ~ 756MHz

-23 ~ -100dBm

777MHz ~ 787MHz

±10Hz

UTRA2: 45.48 UTRA1: 41.41 E-UTRA1:39.43 UTRA2: 44.87 UTRA1: 41.51 E-UTRA2:38.25

8.87MHZ (10MHZ Nominal)

<3%

Channels: 210 PRN， 66 Search， 22 Simultaneous tracking Sensitivity (UHIS):

Sensitivity

Tracking: -156dBm Reacquisition: -153dBm Acquisition: -144dBm Acquisition time: Hot: <2s

Tracking Time Requirement

Warm: <15s Cold: <60s Reacquisition: 2s - 10s Depends on signal level

2.3 Certification and Safety

Drop Design Temperature Range

Humidity:

Vehicle ISO Test

ESD Requirement Operator Certifications

1.2 meter 6 direction standard drop test

-20 to 40°C Operation

-30 to +80° C Storage 20% to 90% Operation 10% to 95% Storage

-500 to +18,000m ISO7637-2-2004; ISO7637-3-2007; ISO10605-2008; ISO16750-2-2010

Industry Canada (optional) 10KV non-Conductive Verizon

Page 9

11 / 15

Items

Requirement

Network Interface

LTE B4, B13

IP Stack

IPV4/IPV6

Upgrade Method

Remote Update

Supported – including OMA DM

Report

Supported: 3000 records

Drivers

GPIO，LED，GPS，UART, USB Accelerometer

GPIOs

Interrupt for Ignition Status, Buzzer, Relay

Startup Banner

3 Software Features

3.1 Basic Software

Remote update/ PC tool

Power Modes AT Commands

LEDs Watch Dog Reset

Supported Supported

GPS Status, Network Status Supported Soft reset, hard reset, GPS reset, RF reset Supported

3.2 Remote Update

The LTE-V supports OTA field upgrades of the resident application. An over the air (Trivial File Transfer Protocol) connection is made over a

n IP

connection. A replacement file is

TFTP

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

Page 10

12 / 15

• Power-up

• Ignition

• Trip start and stop

Any hardware or software reset will return the device to full power mode.

3.4 AT Commands

Extended AT commands are specific to the LTE-V device. They are closely based on commands that are as similar as possible industry common devices and are essentially subsets of standard LTE-V commands. Native AT command s supported by the SQN3223 modules are also available via the serial and USB interfaces.

Command Summary

The following commands are specific to the LTE-V. The commands listed are intended to be similar to counterparts found in other tracking products by the same vendor.

1. AT+IONAA: Set append mode

2. AT+IONACK: Set acknowledgement mode

3. AT+IONAPN: Set APN

4. AT+IONBIN: Read the factory core software version (read only)

5. AT+IONBZ: Buzzer setting

6. AT+IONCV: Configuration version

7. AT+IONDI: Set distance interval interrupt

8. AT+IONDTE: Set driving time events

9. AT+IONFR: Restore factory defaults

10. AT+IONGF: Set geo fence borders

11. AT+IONGFH: Set geo fence around current location

12. AT+IONGPIO: GPIO Read/Write

13. AT+IONGS: GPS State report

14. AT+IONHB: Heartbeat

15. AT+IONHC: Heading Change

16. AT+IONINFx: List system information segments

17. AT+IONIP: Set target server IP address and port number

18. AT+IONIPC: IP Change report

19. AT+IONIS: Ignition State

20. AT+IONLT: LEDs’ Timing and Intensity

21. AT+IONLPORT: Set the local IP port number

Page 11

13 / 15

22. AT+IONNR: Set time before IP session is closed and restarted

23. AT+IONNW: Set watchdog timeout if no network found

24. AT+IONPM: Set auto power down mode

25. AT+IONRF: Report Format – Binary

26. AT+IONRI: Set report timer interval

27. AT+IONRM: Report Mask

28. AT+IONRN: Queue report record for transmission

29. AT+IONRR: Set reset report

30. AT+IONRS: Reset setting - soft/hard, periodic

31. AT+IONSD: Set SMS response destination

32. AT+IONSI: Set interrupt

33. AT+IONSQ: Set queue length

34. AT+IONSR: Set relay driver (GP3) state high or low

35. AT+IONSV: Read the factory application software version (read only)

36. AT+IONTA: Tow Alert

37. AT+IONTID: CDMA tower ID and location data

38. AT+IONUA: Update application firmware OTA

39. AT+IONUC: Update configuration files OTA

40. AT+IONVO: Virtual Odometer

41. AT+IONVTO: Virtual Trip Odometer

3.5 Ack’ed Mode

UDP is not a 100% reliable connection and occasional reports or command/responses may be lost. Since all commands have responses, the server can repeat any command to which there is no response. In order to assure reliable reception of reports, LTE-V devices can be configured either in Normal or Ack’ed mode to send the reports. In the Normal mode the reports are simply sent “as is” with no acknowledgment from the server. In the Ack’ed mode every report sent is expected to be acknowledged by the server by sending back an ACK message back. If not received within the specified timeout, the report is re-sent. If the report is not acknowledged after the specified number of attempts, it is queued. If acknowledgement is received after the report is queued (i.e. past timeout

of the last attempt), it is ignored.

Report is not considered “complete” until its acknowledgement is received. Thus, if report X is sent and report X+1 is triggered while waiting for acknowledgement of X, report X+1 will be queued until such acknowledgement is received and only then sent. The LTE-V will attempt to re-send queued report(s) every time a new report is triggered. If there is more than one report

acknowledgement

Page 12

14 / 15

queued, the reports will attempt to be sent in the order of triggering and only once the report is acknowledged, the next report is attempted. This assures that reports are sent and received in order

Ack’ed mode assures that all reports are received, but adds overhead in time and data. Report that is not

acknowledged

is sent again and

eventually

will be queued and sent again. The number

and frequency of re-tries is configurable via the Report Acknowledgement command.

3.6 Event Report Format

Reports are encoded as binary hex. It is also echoed to the debug UART in ASCII format.

3.7 Reset

There are a number of resets available on the device. Soft reset only restarts the software running on the device. Hard reset is caused by resetting the whole basband module via a reset pin. There is also an option to reset the GPS and the cellular sub-systems individually.

3.7.1 Context Preservation

When a self-initiated reset is performed due to Network Watchdog or by the Reset command (modes 0,1), the context of the system is being preserved and is restored after the reset. The context includes all the periodic timers, the report queue, the odometer, etc. This allows to reset the unit as a troubleshooting

or preventive

measure without losing reports that are already in the queue or are pending on running timers. Note that the reset process may cause 1-2min of inaccuracy in the timers and should not be considered as very precise.

3.8 Startup Banner

After a reset a startup banner is printed through the UART only.

Page 13

15 / 15

Test Item

Description

4 Test Method

4.1 Hardware

Baseband Function Test

RF Test

• Power Input Test

• Power Consumption and Current Test

• Heat Dissipation Test

• UART Stability Test

• GPIO Level Test

• LED Stability Test

• Drop Down Test

• ESD Test

• High/Low Temperature Test

• Humidity Test

• RF Performance Test

• GPS Performance Test

• Antenna Performance Test

4.2 Software Test

Test Environment Construct

 Message Test environment

1. USB dongle and PC as message server

2. Send message to LTE-V  UDP Test environment

1. Connect dongle to PC and create dialup as ip server

2. LTE-V create IP connection to server  UART Test environment

1. Connect LTE-V to PC with com serial cable

2. Open Terminal tool and send at command

3. Response can be shown at terminal window

Page 14

16 / 15

Mechanical Structure (mm)

Page 15

17 / 15

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be dete interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible fo r compliance could void the user's authority to operate the equipment.

rmined by turning the equipment off and on, the user is encouraged to try to correct the

RF Exposure Warning Statements:

The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons during the normal operations.

ISEDC STATEMENT

This device complies with Industry Canada’s licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepte r tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

In order to avoid the possibility of exceeding the ISEDC radio frequency exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation.

Afin d'éviter la possibilité de dépasser les limites d'exposition aux fréquences radio de la ISEDC CNR102, la proximité humaine à l'antenne ne doit pas être inférieure à 20 cm (8 pouces) pendant le fonctionnement normal.