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PDF SKG09D Data sheet ( Hoja de datos )
| Número de pieza | SKG09D | |
| Descripción | Beidou/GPS Module | |
| Fabricantes | Skylab | |
| Logotipo |  |
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深圳市天工测控技术有限公司
SKG09D-Datasheet
Beidou/GPS Module
Datasheet
Name: High-performance BD/GPS Module
Model No.: SKG09D
Revision: 001
Revision History:
Revision
001
Description
Initial Release to 001
Approved
Woody
Date
20140225
1 SKG09D-DA-001,A/1
1 page  
深圳市天工测控技术有限公司
SKG09D-Datasheet
AlwaysLocate™
AlwaysLocateTM is an intelligent controller of periodic mode. Depending on the environment and motion conditions,
BD/GPS module can adaptively adjust working/standby time to achieve balance of positioning accuracy and power
consumption. In this mode, the host CPU does not need to control BD/GPS module until the host CPU needs the
BD/GPS position data. The following flow chart is an example to make BD/GPS module go into AlwaysLocateTm
mode and then back to normal operation mode.
AGPS Support for Fast TTFF (EPO™)
The AGPS (EPO™) supply the predicated Extended Prediction Orbit data to speed TTFF ,users can download the
EPO data to GPS engine from the FTP server by internet or wireless network ,the GPS engine will use the EPO data to
assist position calculation when the navigation information of satellites are not enough or weak signal zone .
EASY™
The EASY™ is embedded assist system for quick positioning, the GPS engine will calculate and predict
automatically the single emperies ( Max. up to 3 days )when power on ,and save the predict information into the
memory , GPS engine will use these information for positioning if no enough information from satellites , so the
function will be helpful for positioning and TTFF improvement under indoor or urban condition ,the Backup power
(VBACKUP) is necessary .
Embedded Logger function
The Embedded Logger function don’t need host CPU (MCU ) and external flash to handle the operation , BD/GPS
Engine will use internal flash (embedded in BD/GPS chipset ) to log the BD/GPS data (Data format : UTC, Latitude ,
longitude, Valid ,Checksum ), the max log days can up to 2 days under AlwaysLocate™ condition .
AIC_Multi-tone active interference canceller
Because different application (Wi-Fi , GSM/GPRS,3G/4G,Bluetooth )are integrated into navigation system , the
harmonic of RF signal will influence the BD/GPS reception , The multi- tone active-interference canceller can
reject external RF interference which come from other active components on the main board , to improve the
capacity of BD/GPS reception without any needed HW change in the design .SKG09D can cancel up to 12
independent channel interference continuous wave.
5 SKG09D-DA-001,A/1
5 Page 
深圳市天工测控技术有限公司
SKG09D-Datasheet
Software Protocol
NMEA 0183 Protocol
The NMEA protocol is an ASCII-based protocol, The Skylab SKG09D supports the following
Records start with a $ and with carriage return/line feed. NMEA-0183 messages: GGA, GLL, GSA, GSV, RMC
BD/GPS specific messages all start with $GNxxx where VTG, ZDA. The module default NMEA-0183 output is
xxx is a three-letter identifier of the message data that set up GGA、GSA、RMC、GSV , and default baud rate
follows. NMEA messages have a checksum, which is set up 9600bps.
allows detection of corrupted data transfers.
Table 1: NMEA-0183 Output Messages
NMEA Record
Description
Default
GNGGA
Global positioning system fixed data
Y
GNGLL
Geographic position—latitude/longitude
N
GPGSA
GPS DOP and active satellites for GPS
Y
BDGSA
Beidou DOP and active satellites for BD
Y
GPGSV
GPS satellites in view for GPS
Y
BDGSV
Beidou satellites in view for BD
Y
GNRMC
Recommended minimum specific GNSS data
Y
GNVTG
Course over ground and ground speed
N
GNZDA
Date and Time
N
GGA-Global Positioning System Fixed Data
This sentence contains the position, time and quality of the navigation fix.
See RMC for Fix Status, Fix Mode, Fix Date, Speed, and True Course.
See GSA for Fix Type, PDOP, and VDOP.
$GNGGA,013134.000,2232.1711,N,11401.1946,E,1,9,1.17,45.2,M,-2.2,M,,*70
Table 2: GGA Data Format
Name
Example
Units
Description
Message ID
$GNGGA
GGA protocol header
UTC Position
013134.000
hhmmss.sss
Latitude
2232.1711
ddmm.mmmm
N/S indicator
N
N=north or S=south
Longitude
11401.1946
dddmm.mmmm
E/W Indicator
E
E=east or W=west
Position Fix Indicator
1
See Table 2-1
Satellites Used
9
Range 0 to 12
HDOP
1.17
Horizontal Dilution of Precision
MSL Altitude
45.2
meters
Altitude (referenced to the Ellipsoid)
AltUnit
M
meters
Altitude Unit
11 SKG09D-DA-001,A/1
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet SKG09D.PDF ] | |
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