Download
Share
Print this page
  1. Manuals
  2. Brands
  3. NavSpark Manuals
  4. Receiver
  5. PX1175RD
  6. Manual

NavSpark PX1175RD Manual

L1/l5 gnss rtk dead reckoning receiver
Hide thumbs Also See for PX1175RD:

Advertisement

Quick Links

Download this manual
Features
⚫
Centimeter accuracy RTK dead-reckoning receiver
⚫
3-axis accelerometer & gyroscope
⚫
Automatic sensor calibration
⚫
230 Channel receiver
⚫
GPS/GLONASS/Galileo/Beidou/QZSS/NavIC receiver
⚫
17mm x 22mm size
⚫
NMEA-0183 and RTCM 3.x protocol
⚫
Easy to integrate
⚫
Operating temperature -40 ~ +85ºC
⚫
RoHS compliant
Applications
⚫
4 Wheel Vehicle RTK Navigation
PX1175RD
L1/L5 GNSS RTK
Dead Reckoning Receiver
The PX1175RD GNSS RTK Dead-Reckoning receiver
module combines RTK position data, gyroscope data
(measuring
(measuring distance traveled) to formulate position
solution. This enables accurate navigation solution in
poor signal environment or signal blocked area. The
PX1175RD is ideal for 4-wheel vehicle applications
requiring accurate continuous navigation.
PX1175RD can operate in Automotive Dead Reckoning
(ADR) mode if the vehicle wheel-tick odometer signal is
connected; or operate in Odometer-less Dead Reckoning
(ODR) mode if the odometer signal is not connected.
The Extended Kalman Filter algorithm combines GNSS
and sensor data with weighting function dependent on
GNSS signal quality. In poor signal reception area, the
position error is reduced by dead reckoning.
The PX1175RD with dead-reckoning feature, position is
output as soon as power is applied to the module
without the need of getting GPS/GNSS position fix.
The receiver is suitable for RTK applications that require
high performance continuous positioning and velocity
data.
1
turning
angle),
and
odometer
data

Advertisement

loading
Need help?

Need help?

Do you have a question about the PX1175RD and is the answer not in the manual?

Questions and answers

Related Manuals for NavSpark PX1175RD

Summary of Contents for NavSpark PX1175RD

  • Page 1 Automatic sensor calibration solution. This enables accurate navigation solution in ⚫ poor signal environment or signal blocked area. The 230 Channel receiver PX1175RD is ideal for 4-wheel vehicle applications ⚫ GPS/GLONASS/Galileo/Beidou/QZSS/NavIC receiver requiring accurate continuous navigation. ⚫ 17mm x 22mm size PX1175RD can operate in Automotive Dead Reckoning ⚫...

  • Page 2: Technical Specifications

    TECHNICAL SPECIFICATIONS Receiver Type 230-channel PHOENIX engine GPS/QZSS L1/5, Galileo E1/E5a, BeiDou B1I/B2a, NavIC L5, GLONASS L1, SBAS L1 Accuracy Position < 1m CEP autonomous 1cm + 1ppm RTK mode Velocity 0.05m/sec* Time 12ns Startup Time 1 second hot start under open sky 28 second warm-start under open sky (average) 29 second cold-start under open sky (average) Reacquisition...

  • Page 3: Block Diagram

    BLOCK DIAGRAM Module block schematic Active antenna is required to use with PX1175RD. The received signal goes through a signal splitter, to individual L1 and L2/L5 SAW filters to remove out-band interference, then to the PX100-5R-01A GNSS receiver chip for RTK signal processing. Using correction data from an RTK base station, the PX1175RD computes the antenna position to centimeter-level accuracy relative to the base station.
  • Page 4 SUPPORTED RTCM MESSAGES When operating in rover mode, PX1175RD can decode following RTCM 3.3 messages: RTCM Message Type Description 1005 Stationary RTK reference station antenna reference point 1006 Stationary RTK reference station ARP with antenna height 1033 Receiver and antenna description...

  • Page 5: Pinout Description

    PINOUT PINOUT DESCRIPTION Pin No. Name Description Ground RF input RF_IN RTK Position: RF_IN antenna position Ground No connection, empty pin 4,5,6 Voltage for external LNA VCC_RF No connection, empty pin 8,9,10,11 Ground No connection, empty pin Ground No connection, empty pin UART serial data input, 3.3V LVTTL.
  • Page 6 HIGH. If the driving circuitry is powered independently of PX1175RD, ensure that this pin is not driven to HIGH when PX1175RD is put to sleep, or a 10K-ohm series resistor can be added to minimize leakage current.
  • Page 7 No connection, empty pin 46,47 Ground External active-low reset input to the baseband. RSTN Only needed when power supply rise time is very slow or software controlled reset is desired. No connection for normal use. Pull-low for loading firmware into empty or BOOT_SEL corrupted Flash memory from ROM mode.

  • Page 8: Mechanical Dimension

    MECHANICAL DIMENSION Symbol Dimension (mm) 17.00 22.00 3.85 1.05 1.90 1.10 0.80 1.50 3.65 3.25 2.10 1.10...

  • Page 9: Electrical Specifications

    ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter Minimum Maximum Condition Supply Voltage (VCC) -0.5 Volt Backup Battery Voltage (V_BCKP) -0.5 Volt Input Pin Voltage -0.5 VCC+0.5 Volt Input Power at RF_IN Storage Temperature +100 degC OPERATING CONDITIONS Parameter Unit Supply Voltage (VDD33) Volt Acquisition Current (exclude active antenna current) Tracking Current (exclude active antenna current)

  • Page 10: Application Circuit

    APPLICATION CIRCUIT...
  • Page 11 ODOMETER and DIRECTION pins. When changing between ADR and ODR mode of operation, cold start command should be issued, or the V_BCKP power should be removed such that internal DR state will be cleared and PX1175RD will re-do DR calibration. CALIBRATION of DR PX1175RD performs calibration of gyro bias and odometer scale automatically using GNSS.

  • Page 12: Antenna Considerations

    RTK performance. POWER SUPPLY REQUIREMENT PX1175RD requires a stable power supply, avoid ripple on VCC pin (<50mVpp). Power supply noise can affect the receiver’s sensitivity. Bypass capacitors should be placed close to the module VCC pin, with values adjusted depending on the amount and type of noise present on the supply line.

  • Page 13: 1Pps Output

    HANDLING GUIDELINE The PX1175RD modules are rated MSL4, must be used for SMT reflow mounting within 72 hours after taken out from the vacuumed ESD-protective moisture barrier bag in factory condition < 30degC / 60% RH. If this floor life time is exceeded, or if the received ESD-protective moisture barrier bag is not in vacuumed state, then the device need to be pre-baked before SMT reflow process.
  • Page 14 RTK Usage Guideline Below conditions are required for getting RTK fix solution. If the conditions are not met, PX1175RD will only have float or DGPS/3D solution and behave like a normal GNSS receiver. * Base and rover distance under 30Km...
  • Page 15 NMEA Output Description The output protocol supports NMEA-0183 standard. The implemented messages include GGA, GLL, GSA, GSV, VTG, RMC, ZDA and GNS messages. The NMEA message output has the following sentence structure: $aaccc,c–c*hh<CR><LF> The detail of the sentence structure is explained in Table 1. Table 1: The NMEA sentence structure character Description...
  • Page 16 The formats of the supported NMEA messages are described as follows: GGA – Global Positioning System Fix Data Time, position and fix related data for a GPS receiver. Structure: $GPGGA,hhmmss.sss,ddmm.mmmmmmm,a,dddmm.mmmmmmm,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF> 5 6 7 8 9 11 12 Example: $GPGGA,094242.000,2447.0954278,N,12100.5264041,E,4,25,0.6,96.501,M,19.600,M,1.000,0000*49<CR><LF> Field Name Example Description...
  • Page 17 GLL – Latitude/Longitude Latitude and longitude of current position, time, and status. Structure: $GNGLL,ddmm.mmmmmmm,a,dddmm.mmmmmmm,a,hhmmss.sss,A,a*hh<CR><LF> 6 7 8 Example: $GNGLL,2447.0954278,N,12100.5264041,E,094242.000,A,D*49<CR><LF> Field Name Example Description Latitude 2447.0954278 Latitude in ddmm.mmmmmmm format Leading zeros transmitted N/S Indicator Latitude hemisphere indicator ‘N’ = North ‘S’...
  • Page 18 GSA – GNSS DOP and Active Satellites GNSS receiver operating mode, satellites used in the navigation solution reported by the GGA or GNS sentence and DOP values. Structure: $GNGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x,x*hh<CR><LF> 1 2 3 3 3 3 3 3 3 3 3 3 3 3 4 5 6 7 8 Example: $GNGSA,A,3,10,25,26,28,32,194,195,196,199,,,,1.1,0.6,0.9,1*39<CR><LF>...
  • Page 19 *GNSS Signal ID identifies the GNSS signal name according to Table 3. Table 3: GNSS Identification Table for GSA, GSV System System ID (Talker) Signal ID Signal Name 1 (GP) All signals L1 C/A L1 P(Y) L2 P(Y) L2C-M L2C-L L5-I L5-Q GLONASS...
  • Page 20 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,x *hh<CR><LF> 1 2 3 4 5 6 7 4 5 6 7 8 9 Example: $GPGSV,3,1,10,194,71,084,45,32,71,078,51,199,60,166,39,196,59,170,45,1*55<CR><LF>...
  • Page 21 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.mmmmmmm,a,dddmm.mmmmmmm,a,x.x,x.x,ddmmyy,,,a,a*hh<CR><LF> 6 7 8 10 11 12 Example: $GNRMC,094242.000,A,2447.0954278,N,12100.5264041,E,000.0,000.0,270923,,,R,V*1F<CR><LF> Field Name Example Description UTC time 094242.000 UTC time in hhmmss.sss format (000000.00 ~ 235959.999) Status Status ‘V’...
  • Page 22 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<CR><LF> Example: $GNVTG,000.0,T,,M,000.0,N,000.0,K,D*16<CR><LF> Field Name Example Description Course 000.0 True course over ground in degrees (000.0 ~ 359.9) Speed 000.0 Speed over ground in knots (000.0 ~ 999.9) Speed 000.0 Speed over ground in kilometers per hour (000.0 ~ 1800.0)
  • Page 23 STI,20 Dead Reckoning Status message Structure: PSTI,xx,x,x,x,xx,x,x,x,xxx.xx,xx.xx,xx.xx,x.xx*xx<CR><LF> 1 2 3 4 5 6 7 8 11 12 13 Example: $PSTI,20,1,1,1,5,A,0,0,-58.48,20.14,0.01,1.01*73<CR><LF> Field Example Format Unit Description numeric Proprietary message identifier: 20 numeric DR Calibration Status 1: calibrated 0: not calibrated numeric Gyro Calibrate Status 1: calibrated 0: not calibrated...

  • Page 24: Ordering Information

    ORDERING INFORMATION Model Name Description PX1175RD GNSS RTK Dead Reckoning receiver module. GPS/QZSS L1/L5, Galileo E1/E5a, Beidou B1I/B2a, GLONASS L1 signal reception PX1175RD-01 GNSS RTK Dead Reckoning receiver module. GPS/QZSS L1/L5, Galileo E1/E5a, Beidou B1I/B2a, NavIC L5 signal reception...
  • Page 25 Revision History Revision Date Description Sep. 27, 2023 Initial release The information provided is believed to be accurate and reliable. These materials are provided to customers and may be used for informational purposes only. No responsibility is assumed for errors or omissions in these materials, or for its use. Changes to specification can occur at any time without notice.