L16 GNSS Module Presentation · APB APB AHB 26M Hz TCX O RF_ I N V CC UART2 UART1 TI M EPLUSE V _...
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Wireless Module Expert Quectel Wireless Solutions L16 GNSS Module Presentation November , 2012
Transcript of L16 GNSS Module Presentation · APB APB AHB 26M Hz TCX O RF_ I N V CC UART2 UART1 TI M EPLUSE V _...
Wireless Module Expert
Quectel Wireless Solutions
L16 GNSS Module Presentation
November, 2012
www.quectel.com
Contents
General description
- Highlights
- Mechanical Dimensions
- Hardware Architecture
- Firmware
- Target Applications
Features
- Receiver Performance
- Specifications
- ST-AGPS
- Anti-Jamming
- L16 GPS+GLONASS vs GPS only
- L16 vs mCompany MXX2217
Support Package
www.quectel.com
Highlights
STMicroelectronics TeseoII
single chip solution
32 tracking channels
2 fast acquisition channels
Anti-Jamming
Available for both GPS and GLONASS
ST-AGPS
Supports self assisted-GPS without external memory
Multi-constellation systems
Simultaneously use
GLONASS /GPS /Galileo /QZSS
High dynamics indoor sensitivity
-162dBm @ Tracking mode
-146dBm @ Cold start
Highest Positioning Accuracy
1.5m CEP @ Positioning Accuracy
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Mechanical Dimension
Length: 22.4 mm
Width: 17.0 mm
Height: 3.0 mm
Weight: 2.2g
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Hardware Architecture
LNA
Saw
Filter
RF Front End
ARM946
Processor
Power
Management
Unit
2MB
SQI Flash
256KB SRAM
16K
B
Instru
ction
8K
B D
ata
16KB
ROM
UART0
UART2
1PPS
G3 Engine
RTC
32.768KHz
AHB
APB
APB
AHB
26MHz
TCXO
RF_INVCC
UART2
UART1
TIMEPLUSE
V_BCKP
VCC_OUT
V_ANT VCC_RF
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FirmWare
Protocol
• NMEA 0183 standard protocol
Configurable Operating Modes
• Selectable baud rate: up to 115200bps
• Selectable date update rate: up to 5Hz
• Selectable output NMEA messages
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Target Applications
Vehicle Management
Security System
Asset Tracking
Portable Devices
Connected PND
GIS Application
Industrial PDA
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Contents
General description
- Highlights
- Hardware Architecture
- Software Technology
- Mechanical Dimension
- Target Applications
Features
- Receiver Performance
- Specifications
- ST-AGPS
- Anti-jamming
- L16 GPS+GLONASS vs GPS only
- L16 vs mCompany MXX2217
Support Package
www.quectel.com
receiver performance
Benefits from high-speed location engine and strict design:
• Advanced Multi-GNSS receiver
• 32 tracking channels and 2 fast acquisition channels
• High performance ARM946 MCU (Up to 208MHz)
• In-Package SQI 16Mbits flash memory
• Full ESD protection on all pins
• Embedded LNA
• SAW filter design
L16 achieves:
• More satellites, higher accuracy
• More satellites, better visibility to satellites
• Superior performance even in urban canyons
• Simultaneously use GLONASS /GPS /Galileo /QZSS systems
www.quectel.com
Specifications
L16 Specifications
L1 Band Receiver
C/A code
Channel 32 Track
2 Fast Acq.
SBAS WAAS, EGNOS ,
MSAS
Position Accuracy Autonomous 1.5 m CEP
Timing Accuracy 1PPS <15ns
Reacquisition Time <2.5s
TTFF with AGPS
@Open Sky
Cold Start <30s
Warm Start <5s
Hot Start <2.5s
TTFF without AGPS
@Open Sky
Cold Start <35s
Warm Start <24s
Hot Start <2.5s
Sensitivity
Cold start -146dBm
Tracking -162dBm
Navigation -160dBm
Reacquisition -148dBm
Environmental
Operating
Temperature -40°C to 85°C
Storage Temperature -45°C to 125°C
UART Interface Adjustable 4800~115200 bps
Default 9600bps
Update rate 1Hz default, 5Hz Max
I/O Voltage 3.3V
Protocols NMEA 0183 Ver3.1
Power supply 3.0V ~ 3.6V
Power
Acquisition ① 120mA @ Passive antenna
Power Tracking① 85mA @ Passive antenna
Power Saving Backup mode
Antenna Type Passive or Active
Antenna Power External or Internal VCC_RF
① Measured in GPS+GLONASS mode under open sky ②ST-AGPS only supports GPS system now
Self-AGPS ST-AGPS②
DGPS SBAS
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ST-AGPS
With ST-AGPS technology, L16 speeds up TTFF obviously and supports up to 5 days.
Test Condition ST-AGPS Off ST-AGPS On
TTFF @ Open Sky
Cold Start <35s <30s
Warm Start <30s <5 s
The ST-AGPS technology is able to provide predicted ephemeris to the GPS engine in a
time frame less than the usual time (about 30 seconds) needed to download real
ephemeris from the sky. This reduces considerably the time to get fix especially in critical
environments when the ephemeris download time could be very long.
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Anti-Jamming
In both GPS/GALIEO and GLONASS branches, an adaptive notch filter block is
present. The Adaptive Notch Filter(ANF) is a filter capable of “self-tune”, through a
proper adaptation algorithm, to the position of the jammer frequency, searching
autonomously for the eventual presence of the Narrow Band Interferer(NBI). It’s able
to identify and to eliminate an eventual NBI without affecting the incoming signal.
The figure below shows the block diagram of Notch filter inside the acquisition and
tracker structure.
The ANF can operate in three different ways:
1. Always ON the signal passed always through the ANF
2. Auto Insertion Mode the signal passes through the ANF only if there is an NBI
3. Always OFF ANF disable
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L16 GPS+GLONASS vs GPS only
L16 GLONASS+GPS ( An average of 10 satellites all the time) Competitor GPS only ( An average of 5 satellites all the time)
Tracking Comparison
When driving under overhead road with tall buildings on each side,
L16 module can track an average of 10 satellites all the time, and
show good GPS+GLONASS positioning as well.
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L16 vs mCompany MXX2217(1)
L16 vs mCompany MXX2217
Product Features L16 mCompany MXX2217
Power supply 3.0V~3.6V 3.3V~5.0V
Sensitivity
Cold start -146dBm -144dBm
Hot start -160dBm -160dBm
Tracking -162dBm -161dBm
Re-acquisition -148dBm -144dBm
TTFF with
AGPS@
Open Sky
Hot start <2.5s 1s,.average
Warm start <5s 32s,.average
Cold start <30s 34s,.average
Position accuracy 1.5m CEP 2m CEP
Timing accuracy 1PPS <15ns <20ns
Data update rate Up to 5Hz 1Hz
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Tracking Comparison
L16 vs mCompany MXX2217(2)
When driving on the open road, L16 module can achieve the highest
performance in position fixing. Positioning failure will never happen to
the L16 module.
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Tracking Comparison
When driving in urban canyon, L16 module will not be influenced by
GPS drift due to its best position fixing system.
L16 vs mCompany MXX2217(3)
www.quectel.com
Tracking Comparison
While driving under overhead road, L16 module still shows its good
position fixing.
L16 vs mCompany MXX2217(4)
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Contents
General description
- Highlights
- Hardware Architecture
- Software Technology
- Mechanical Dimension
- Target Applications
Features
- Receiver Performance
- Specifications
- ST-AGPS
- Anti-Jamming
- L16 GPS+GLONASS vs Competitor GPS only
- L16 vs mCompany MXX2217
Support Package
www.quectel.com
Support Package(1)
Evaluating board
Interfaces • GNSS serial port
• Antenna interface
• Adapter interface
• Test points
• Power switch
• Firmware upgrade switch
• Reset Button
Accessories
• Serial port cable
• DC 5V/2A power adapter
• GNSS antenna
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Documents • Hardware design user guide
• GPS protocol manual
• Part&Decal in PADS and Protel format
• Evaluating board user guide
PC tool • Firmware Upgrade tool—— TeseoII X-Loader
Support Package(2)
www.quectel.com
• ST test tool- GPS testing tool
Support Package(3)
