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RoyalTek RDR-3100 User Manual

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RDR-3100 User Manual
RDR-3100
User Manual
Version
1.8
2008/10/2
This document contains information highly confidential to RoyalTek Company LTD
(RoyalTek). It is provided for the sole purpose of the business discussions between
customer and RoyalTek and is covered under the terms of the applicable Non-
Disclosure Agreements. Disclosure of this information to other parties is prohibited
without the written consent of RoyalTek.
Prepared by
RoyalTek Company LTD.
nd
4F, No. 188, Wen Hwa 2
Rd.,
Kuei-Shan, Tao-Yuan 333, Taiwan
TEL: 886-3-3960001
FAX: 886-3-3960065
1

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Summary of Contents for RoyalTek RDR-3100

  • Page 1 2008/10/2 This document contains information highly confidential to RoyalTek Company LTD (RoyalTek). It is provided for the sole purpose of the business discussions between customer and RoyalTek and is covered under the terms of the applicable Non- Disclosure Agreements. Disclosure of this information to other parties is prohibited without the written consent of RoyalTek.

  • Page 2: Table Of Contents

    Product Picture.....................12 Mechanical Layout..................14 SW Protocol ....................15 8.1 GPS output Protocol ..................15 8.1.1 RoyalTek DR protocol – RTOEM,3 ...............15 8.1.2 GGA-Global Positioning System Fixed Data ..........16 8.1.3 GSA-GNSS DOP and Active Satellites ............18 8.1.4 GSV-GNSS Satellites in View ................19 8.1.5 RMC-Recommended Minimum Specific GNSS Data ........20 GPS DR (UART A) Input command ............21...

  • Page 3: Introduction

    Reckoning technology. The RDR-3100 includes dead reckoning sensors to track your vehicle's course when your GPS signal is blocked for example in urban areas or tunnels. If you lose GPS coverage in areas with tall buildings or tunnels, the RDR-3100 keeps on navigating.

  • Page 4: Specification

    RDR-3100 User Manual 3. Specification GPS Module - REB-3570 /LP GPS Chipset - Star III GPS Gsc3f/LP chipset Frequency - L1 1,575.42 MHz Channel - 20 channels C/A Code - 1,023 MHz chipset Fix time - Reacquisition: less than 0.1s...

  • Page 5: Reference Design Of Gyro And Odometer Circuit Design

    RDR-3100 User Manual 4. Reference design of Gyro and Odometer circuit design 4.1 System Block Diagram 12V input Convert Interface RTC +3.3V TX +3.3V TX +5V RX +3.3V RX +5V Boot +3.3V Boot +5V Odometer +3.3V Odometer +12V Back +3.3V...

  • Page 6: Application Circuit

    RDR-3100 system. The power of the gyro is 5Vwhich is different from the power of RDR-3100. Please use a separate analog ground for gyro. And please keep high speed signal away from the signal path of gyro and power when doing layout.
  • Page 7 RDR-3100 User Manual Figure 1. Odometer/Reverse Circuit V_5V V_5V V_3V3 V_3V3 LTV817S TP31 odometer_A/D rev erse_A/D Odometer 2SC2412K 1N4148 0.01uF 100K LTV817S TP32 Rev erse 2SC2412K 1N4148 0.01uF 100K...
  • Page 8 RDR-3100 User Manual Figure 2. Backup Battery Circuit V_3V3 Battery SCH TP37 RB705D RB705D PIN3(RTC_3V3)

  • Page 9: Hw Interface

    RDR-3100 User Manual 5. Interface 5.1 Connector Type：20 Pin Header，2.0 mm pitch (J2) Signal Name I/O Description Characteristics None connector GPS 5V +5V DC Power Input DC +5V ± 1%. RTC (Backup User Supply DC +2.6 ~ DC +2.6 ~ +3.6V.
  • Page 10 RDR-3100 User Manual 15 RXD2 (SiRF 3 Can bus data (Receive) Vih > 2V Vil<0.8V RXD2) Car PC (UAR2) 16 GND Ground Reference Ground 17 GND Ground 18 GND Ground Reference Ground 19 N.C 20 N.C GPS_5V This is the DC power supply input pin for system. .
  • Page 11 RDR-3100 User Manual This is the battery backup input that powers the SRAM and RTC when main power is removed. Typical current draw is 10uA. The supply voltage should be between 2.5V and 3.6V. BACK (Backward) This pin provides for connecting to backward signal.

  • Page 12: Rf Connector Type: Mcx Straight Pcb Jack (J1)

    RDR-3100 User Manual 5.2 RF connector type: MCX STRAIGHT PCB JACK (J1) RF IN: This pin receives GPS analog signal. The line on the PCB between the antenna (or antenna connector) has to be a controlled impedance line (Microstrip at 50Ω). This pin can provide maximum power 30mA @ 2.85V for active antenna.
  • Page 13 RDR-3100 User Manual Bottom:...

  • Page 14: Mechanical Layout

    RDR-3100 User Manual 7. Mechanical Layout...

  • Page 15: Sw Protocol

    GNSS DOP and active satellites GNSS satellites in view Recommended minimum specific GNSS data The RoyalTek DR protocols are NMEA like protocol to show the DR navigation and calibration information. 8.1.1 RoyalTek DR protocol – RTOEM,3 This sentence contains the navigation and calibration information of DR.

  • Page 16: Gga-Global Positioning System Fixed Data

    RDR-3100 User Manual Gyro Offset The voltage of Gyro input. The unit is 0.002v Odometer scale factor The scale factor of odometer pulse. The scale is cm/pulse Delta angle Vehicle’s Cog per second (unit = degree) The pulse count of last second of odometer sensor. The Pulse count unit is pulse / second.
  • Page 17 RDR-3100 User Manual MSL Altitude meters Units meters Geoid Separation meters Units meters Age of Diff. Corr. second Null fields when DGPS is not used Diff. Ref. Station ID 0000 Checksum End of message termination ＜CR＞＜LF＞ Table 1-2 Position Fix Indicators...

  • Page 18: Gsa-Gnss Dop And Active Satellites

    RDR-3100 User Manual 8.1.3 GSA-GNSS DOP and Active Satellites Table 1-5 contains the values of the following example: $GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33 Table 1-1 GSA Data Format Name Example Units Description Message ID $GPGSA GSA protocol header Mode 1...

  • Page 19: Gsv-Gnss Satellites In View

    RDR-3100 User Manual 8.1.4 GSV-GNSS Satellites in View Table 1-8 contains the values of the following example: $GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71 $GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41 Table 1-8 GSV Data Format Name Example Units Description Message ID $GPGSV GSV protocol header Number of Messages Range 1 to 3...

  • Page 20: Rmc-Recommended Minimum Specific Gnss Data

    RDR-3100 User Manual 8.1.5 RMC-Recommended Minimum Specific GNSS Data Table 1-9 contains the values of the following example: $GPRMC,161229.487,A,3723.2475, N,12158.3416,W,0.13,309.62,120598,,,A*10 Table 1-1 RMC Data Format Name Example Units Description Message ID $GPRMC RMC protocol header UTC Position 161229.487 hhmmss.sss Status...

  • Page 21: Gps Dr (Uart A) Input Command

    RDR-3100 User Manual GPS DR (UART A) Input command The input command is used to let the navigation program send command to DR. 8.2.1 $MMF This MMF command is used to let the navigation program send the map matching information to the DR module to update the current position and azimuth angle of device using known information.
  • Page 22 RDR-3100 User Manual Transfer Examples:  Get current GPS Position  Original: (24.106928,N,120.299588,E) (213.19)  (Unit = DD.MMSSSS)  Result: (to unit = degree)  Lat = 24 + 10/60 + 69.28/3600 (if S is used, Lat * ‐1.0) = 24.185911  Long = 120 + 29/60 + 95.88/3600 (if S is used, Long * ‐1.0) = 120.5100 Converter GPS Info Format  (Unit = degree)  Command Description:  Parameter: (156,A(para1),288,A(para2),10,A(para3))  Exposition:   Retrieved MMF Command   If para1 = ‘A’, Lat = Lat(24.1859) + 156 * 0.000001(unit = degree)  Message   If para2 = ‘A’, Long = Long(120.5100) + 288 * 0.000001(unit = degree)  If para3 = ‘A’, Cog = Cog(213.19) + 10 * 0.1  Updated GPS Position by Input MMF Message  Description:   Lat Format: DD.MMSSSS, N/S indicator  Converter GPS Info Format  (If lat value < 0.0, ‘S’ is used. Other is ‘N’)  (Unit = DD.MMSSSS)  Long Format: DDD.MMSSSS, E/W indicator  (If long value < 0.0, ‘W’ is used. Other is ‘E’)  Cog: unit = degree  Waiting for next MMF Command...

  • Page 23: Can Bus (Uart B) Protocol

    RDR-3100 User Manual 8.3 CAN bus (UART B) protocol The RDR-3100 provides a second port to receive the speed and reverse message from the input source. If the module receives the following input message then the DR module will stop reading the speed and reverse message from MCU.

  • Page 24: Gps Antenna Detection Output Message

    RDR-3100 User Manual 8.3.2 GPS antenna detection output Message This sentence contains the GPS antenna detector information which read from GPS module and send to the CAN bus. The protocol is illustrated as follows: Item Field Description Beginning of sentence...

  • Page 25: Nmea Output Message

    9 Calibration of DR 9.1 Self calibration of DR RDR-3100 calibrates the Gyro bias and odometer scale using the information of GPS satellites automatically. It also updates the position and azimuth using GPS navigation information automatically. Customer is not required to calibrate the Gyro bias and odometer scale factor.
  • Page 26 RDR-3100 User Manual Temperature Range - -40 ~ 85℃ Zero point voltage - +2.5±0.4V Sensitivity 25mV/(°/S) Frequency response(7Hz) - ＞–4dB Output voltage range - 0.3~4.7V - ＜10mVpp Output noise...

  • Page 27: Package Specification And Order Information

      H eadquarter: 4F, No. 188, Wen Hwa 2 Rd., Kuei Shan, Tao Yuan 333, Taiwan TEL: 886-3-3960001 FAX: 886-3-3960065   W eb Site: http://www.royaltek.com   W eb Site Customer Service: http://www.royaltek.com/contact 12. Revision History Revision Date Author Change notice...

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