GPS02
Features
z 65 channel engine for high
performance acquisition z GPS L1 C/A Code
z Perform 8 million time-frequency
hypothesis testing per second z Open sky hot start 1 sec z Open sky cold start 33 sec
z Signal detection better than –160dBm z Acquisition sensitivity –145dBm z Accuracy 5m CEP z Tracking current < 50mA z Support active antenna z Small size 22.4 x 17.0 x 2.8 mm
(LxWxH)
GPS02
Low Cost Very High Performance SMD GPS Module
The GPS02 is a small form factor GPS module solution intended for a broad range of Original Equipment Manufacturer (OEM) products, where fast and easy system integration and minimal development risk is required.
The GPS02 GPS receiver’s -160dBm tracking sensitivity allows continuous position coverage in nearly all application environments. Its high performance search engine is capable of testing 8,000,000 time-frequency hypotheses per second, offering industry-leading signal acquisition and TTFF speed.
The receiver is optimized for applications requiring high performance, low power, and low cost; suitable for a wide range of OEM configurations including mobile phone, PND, asset tracking, and vehicle navigation products.
The very small 22.4mm x 17.0mm form factor and the SMT pads allow standard surface mount device pick-and-place process in fully automated assembly process; enabling high-volume, very cost-efficient production.
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GPS02
TECHNICAL SPECIFICATIONS
65 parallel channel, L1 C/A code
Accuracy Position 5m CEP Velocity 0.1m/sec 1PPS Timing +/-1us
Startup Time 1 second hot start under open sky 33 second cold start under open sky (average)
Reacquisition 2s
Sensitivity -145dBm acquisition -160dBm tracking
Update Rate 1Hz
2
Dynamics 4G (39.2m/sec)
Operational Limits Altitude < 18,000m or velocity < 515m/s
(COCOM limit, either may be exceeded but not both)
Serial Interface 3.3V LVTTL level
Protocol NMEA-0183 V3.01 GPGGA, GPGLL, GPGSA, GPGSV, GPRMC, GPVTG*2 Default 9600 baud rate, 8, N, 1
Datum Default WGS-84 User definable
Input Voltage 3.3V DC +/-5%
Input Current ~70mA acquisition ~50mA tracking
Dimension 22.4mm L x 17.0mm W x 2.8mm H
Weight: 3g
oo
Operating Temperature -40C ~ +85C
Storage Temperature -55 ~ +100oC
Humidity 5% ~ 95%
Receiver Type
2
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GPS02
BLOCK DIAGRAM
Module block schematic
ANTENNA
The GPS02 module is designed to work active antenna. Recommended active antenna should have gain of 15 ~ 30dB and noise figure less than 1.2dB.
PIN Assignment
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GPS02
PIN Description
Pin No. Name 1 NC Description 2 NC Serial Port 1，the is the main receiver channel and is used to3 TX receive software commands to the board from debug software orfrom user written software. Serial Port 1，the is the main transmitting channel and is used to 4 output navigation and measurement data to debug software or RX
user written software. 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
NC VCC GND VCCOUT NC RESET V_BAT GND GND GND GND RF_IN GND VCC-RF VCC_ANT
NC NC NC NC NC NC NC NC P1PPS
Main 3.3V±5% DC supply input Ground 3.3V Output
External active-low reset input.
Only needed when power supply rise time is very slow.
Backup supply voltage for RTC and backupmemory,2.0V~5.0V Ground Ground Ground Ground
GPS Signal Input,Connect to Active antenna. Ground
Voltage out for active antenna，3.3v DC Supply 3.3V for External Active antenna
1 pulse per second time mark
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GPS02
RECOMMENDED PCB FOOTPRINT
单位：mm
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GPS02
NMEA Messages
The serial interface protocol is based on the National Marine Electronics Association’s NMEA 0183 ASCII interface specification. This standard is fully define in “NMEA 0183, Version 3.01” The standard may be obtained from NMEA, www.nmea.org
GGA - Global Positioning System Fix Data
Time, position and fix related data for a GPS receiver.
Structure:
$GPGGA,hhmmss.sss,ddmm.mmmm,a,dddmm.mmmm,a,x,xx,x.x,x.x,M,,,,xxxx*hh 1 2 3 4 5 6 7 8 9 10 11 Example: $GPGGA,111636.932,2447.0949,N,12100.5223,E,1,11,0.8,118.2,M,,,,0000*02 Field Name Example Description 1 UTC Time 111636.932 UTC of position in hhmmss.sss format, (000000.000 ~ 235959.999) 2 Latitude 2447.0949 Latitude in ddmm.mmmm format Leading zeros transmitted 3 N/S Indicator N Latitude hemisphere indicator, ‘N’ = North, ‘S’ = South 4 Longitude 12100.5223 Longitude in dddmm.mmmm format Leading zeros transmitted 5 E/W Indicator E Longitude hemisphere indicator, 'E' = East, 'W' = West 6 GPS quality 1 GPS quality indicator indicator 0: position fix unavailable 1: valid position fix, SPS mode 2: valid position fix, differential GPS mode 3: GPS PPS Mode, fix valid 4: Real Time Kinematic. System used in RTK mode with fixed integers 5: Float RTK. Satellite system used in RTK mode. Floating integers 6: Estimated (dead reckoning) Mode 7: Manual Input Mode 8: Simulator Mode 7 Satellites Used 11 Number of satellites in use, (00 ~ 12) 8 HDOP 0.8 Horizontal dilution of precision, (00.0 ~ 99.9) 9 Altitude 108.2 mean sea level (geoid), (-9999.9 ~ 17999.9) 10 DGPS Station ID 0000 Differential reference station ID, 0000 ~ 1023 NULL when DGPS not used 11 Checksum 02 Note: The checksum field starts with a ‘*’ and consists of 2 characters representing a hex number. The checksum is the exclusive OR of all characters between ‘$’ and ‘*’. 6 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com GLL – Latitude/Longitude Latitude and longitude of current position, time, and status. Structure: $GPGLL,ddmm.mmmm,a,dddmm.mmmm,a,hhmmss.sss,A,a*hh Example: $GPGLL,2447.0944,N,12100.5213,E,112609.932,A,A*57 Field Name Example Description 1 Latitude 2447.0944 Latitude in ddmm.mmmm format Leading zeros transmitted 2 N/S Indicator N Latitude hemisphere indicator ‘N’ = North ‘S’ = South 3 Longitude 12100.5213 Longitude in dddmm.mmmm format Leading zeros transmitted 4 E/W Indicator E Longitude hemisphere indicator 'E' = East 'W' = West 5 UTC Time 112609.932 UTC time in hhmmss.sss format (000000.000 ~ 235959.999) 6 Status A Status, ‘A’ = Data valid, ‘V’ = Data not valid 7 Mode Indicator A Mode indicator ‘N’ = Data not valid ‘A’ = Autonomous mode ‘D’ = Differential mode ‘E’ = Estimated (dead reckoning) mode ‘M’ = Manual input mode ‘S’ = Simulator mode 8 Checksum 57 GPS02 7 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com GPS02 GSA – GNSS DOP and Active Satellites GPS receiver operating mode, satellites used in the navigation solution reported by the GGA or GNS sentence and DOP values. Structure: $GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh 1 2 3 3 3 3 3 3 3 3 3 3 3 3 4 5 6 7 Example: $GPGSA,A,3,05,12,21,22,30,09,18,06,14,01,31,,1.2,0.8,0.9*36 ‘M’ = Manual, forced to operate in 2D or 3D mode ‘A’ = Automatic, allowed to automatically switch 2D/3D 2 Mode 3 Fix type 1 = Fix not available 2 = 2D 3 = 3D 3 Satellite used 1~12 05,12,21,22,30Satellite ID number, 01 to 32, of satellite used in solution, ,09,18,06,14,0up to 12 transmitted 1,31,, 4 PDOP 1.2 Position dilution of precision (00.0 to 99.9) 5 HDOP 0.8 Horizontal dilution of precision (00.0 to 99.9) 6 VDOP 0.9 Vertical dilution of precision (00.0 to 99.9) 7 Checksum 36 8 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com GPS02 GSV – GNSS Satellites in View Number of satellites (SV) in view, satellite ID numbers, elevation, azimuth, and SNR value. Four satellites maximum per transmission. Structure: $GPGSV,x,x,xx,xx,xx,xxx,xx,…,xx,xx,xxx,xx *hh Example: $GPGSV,3,1,12,05,54,069,45,12,44,061,44,21,07,184,46,22,78,289,47*72 Field Name Example Description 1 Number of message3 Total number of GSV messages to be transmitted (1-3) 2 Sequence number 1 Sequence number of current GSV message 3 Satellites in view 12 Total number of satellites in view (00 ~ 12) 4 Satellite ID 05 Satellite ID number, GPS: 01 ~ 32, SBAS: 33 ~ 64 (33 = PRN120) 5 Elevation 54 Satellite elevation in degrees, (00 ~ 90) 6 Azimuth 069 Satellite azimuth angle in degrees, (000 ~ 359 ) 7 SNR 45 C/No in dB (00 ~ 99) Null when not tracking 8 Checksum 72 9 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com GPS02 RMC – Recommended Minimum Specific GNSS Data Time, date, position, course and speed data provided by a GNSS navigation receiver. Structure: $GPRMC,hhmmss.sss,A,dddmm.mmmm,a,dddmm.mmmm,a,x.x,x.x,ddmmyy,,,a*hh $GPRMC,111636.932,A,2447.0949,N,12100.5223,E,000.0,000.0,030407,,,A*61 Field Name Example Description 1 UTC time 0111636.932 UTC time in hhmmss.sss format (000000.00 ~ 235959.999) 2 Status A Status ‘V’ = Navigation receiver warning ‘A’ = Data Valid 3 Latitude 2447.0949 Latitude in dddmm.mmmm format Leading zeros transmitted 4 N/S indicator N Latitude hemisphere indicator ‘N’ = North ‘S’ = South 5 Longitude 12100.5223 Longitude in dddmm.mmmm format Leading zeros transmitted 6 E/W Indicator E Longitude hemisphere indicator 'E' = East 'W' = West 7 Speed over ground 000.0 Speed over ground in knots (000.0 ~ 999.9) 8 Course over ground000.0 Course over ground in degrees (000.0 ~ 359.9) 9 UTC Date 030407 UTC date of position fix, ddmmyy format 10 Mode indicator A Mode indicator ‘N’ = Data not valid ‘A’ = Autonomous mode ‘D’ = Differential mode ‘E’ = Estimated (dead reckoning) mode ‘M’ = Manual input mode ‘S’ = Simulator mode 11 checksum 61 10 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com GPS02 VTG – Course Over Ground and Ground Speed The actual course and speed relative to the ground. Structure: GPVTG,x.x,T,,M,x.x,N,x.x,K,a*hh Example: $GPVTG, 000.0,T,,M,000.0,N,0000.0,K,A*3D Field Name Example Description 1 Course 000.0 True course over ground in degrees (000.0 ~ 359.9) 2 Speed 000.0 Speed over ground in knots (000.0 ~ 999.9) 3 Speed 0000.0 Speed over ground in kilometers per hour (0000.0 ~ 1800.0) 4 Mode A Mode indicator ‘N’ = not valid ‘A’ = Autonomous mode ‘D’ = Differential mode ‘E’ = Estimated (dead reckoning) mode ‘M’ = Manual input mode ‘S’ = Simulator mode 5 Checksum 3D 11 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com GPS02 ORDERING INFORMATION Model Name GPS02 Description Default 9600 baud rate 12 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com 因篇幅问题不能全部显示，请点此查看更多更全内容