RoyalTek RDR-3100 User Manual
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 NonDisclosure Agreements. Disclosure of this information to other parties is prohibited
without the written consent of RoyalTek.
Prepared by
RoyalTek Company LTD.
4F, No. 188, Wen Hwa 2nd Rd.,
Kuei-Shan, Tao-Yuan 333, Taiwan
TEL: 886-3-3960001
FAX: 886-3-3960065
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RDR-3100 User Manual
Content
1. Introduction....................................................................................................3
2. Product Feature ..............................................................................................3
2.1 Product Applications ............................................................................................3
3. Specification ..................................................................................................4
4. Reference design of Gyro and Odometer circuit design................................5
4.1 System Block Diagram ........................................................................................5
4.2 Application Circuit...............................................................................................6
5. HW Interface..................................................................................................9
5.1 Connector Type：20 Pin Header，2.0 mm pitch (J2).........................................9
5.2 RF connector type: MCX STRAIGHT PCB JACK (J1) ...................................12
6. Product Picture............................................................................................. 12
7. Mechanical Layout.......................................................................................14
8. 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
8.2 GPS DR (UART A) Input command ...........................................................21
8.2.1 $MMF .............................................................................................................21
8.3 CAN bus (UART B) protocol ............................................................................23
8.3.1 Speed, Reverse status input Message..............................................................23
8.3.2 GPS antenna detection output Message..........................................................24
8.4 NMEA Output Message...............................................................................25
9 Calibration of DR.........................................................................................25
9.1 Self calibration of DR ........................................................................................25
9.2 Calibration Criterion ..........................................................................................25
9.3 Calibration of DR using digital map information..............................................25
9.4 Gyro Electric Characteristics .............................................................................25
10. Package Specification and Order Information...................................................27
11. Contact Royaltek................................................................................................27
12. Revision History ................................................................................................ 27
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RDR-3100 User Manual
1. Introduction
RoyalTek RDR-3100 is the newest generation of RoyalTek GPS module integrated Dead
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.
This document describes the recommended schematic and layout design of gyro and odometer
circuit, and is designed to operate with RDR-3100 algorithm correctly. This document also
describes the application of DR protocol and illustrates how to optimize the performance of
DR using known digital map information.
2. Product Feature
20 parallel channels
Screw holes type
Newest generation of RoyalTek GPS module integrated Dead Reckoning technology
Keep on producing an accurate position after loosing contact to the GPS satellites.
Enhanced algorithm for navigation stability and minimizes the effects of GPS outages,
And provide improved position accuracy in urban environments.
Excellent sensitivity for urban canyon and foliage environments.
2.1 Product Applications
Automotive navigation
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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
(Open sky)
Accuracy - Position: within 10m for 90%
Interface Protocol - NMEA 0183 ver 3.0, GGA, GSA, GSV (5), RMC
DGPS - Default is Disable
WAAS - Default WAAS is Disable
Dynamics
Altitude - 18,000 meter maximum
Velocity - 514 meter/second maximum
MCU - Silicon Lab C8051F353
Antenna
Active Antenna RF
Connector
External Antenna
input Voltage
Power
Voltage Type - DC +5V ± 1%
Screw Hole type
Antenna Detect function
GPIO; Follow customer GPS antenna detector protocol
Interface
Connector
Physical and Environment
Dimension - 71±0.3mm(L) x 40.8±0.3mm(W) x 18.6mm±0.3mm (H)
Weight
Temperature - Operating : -40 ~ 85℃
- Reacquisition: less than 0.1s
- Hot start: 1 sec
- Warm start: 35 sec
- Cold start: 35 sec
- Velocity: 0.1m/s
- SiRF Protocol + DR protocol + Map Matching Protocol
- 38400 bps, 8 data bits, no parity, 1 stop bits
- MCX (Male Head), 180 degree 8mm (standard)
- Option for any kind of RF Connector
- Recommend using 2.7V~3.3V
Port 2 baud Rate: 38400bps
1: YES / 0:NO
20 Pin Header，2.0 mm pitch (J2) Male seat
- ≦17(g)
- Storage : -40 ~ 85℃
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RDR-3100 User Manual
4. Reference design of Gyro and Odometer circuit design
4.1 System Block Diagram
+5V
RTC +3.3V
TX +3.3V
RX +3.3V
Odometer +3.3V
Back +3.3V
Convert
Interface
12V input
TX +5V
RX +5V
Boot +5V Boot +3.3V
Odometer +12V
Back +12V
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RDR-3100 User Manual
4.2 Application Circuit
Figure 1 illustrates the proposed schematic diagram of Gyro, odometer and RDR-3100. RDR-3100 supports the Gyro, Panasonic EWT S84/86.
Please care about the ground partition design among Gyro circuit, RDR-3100 and odometer input. It would be better to use 2 kinds of ground.
The input of odometer is around 12V typically. It transfers the voltage level to accommodate the I/O voltage level of RDR-3100. The photo
coupling transistors also isolate the noise of car from the 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.
Figure 2 illustrates the proposed schematic diagram of Backup Battery
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Figure 1.
Odometer/Reverse Circuit
RDR-3100 User Manual
V_5V
V_5V
V_3V3V_3V3
Odometer
Reverse
TP32
1
1
D1
1N4148
D2
1N4148
R17 22K
0.01uF
R24 22K
0.01uF
C10
C11
R22
100K
R25
100K
R47
R12
220
R14
0
3
1
3
1
Q1
2SC2412K
R23
0
Q2
2SC2412K
2
2
R13
220
U4
2 3
2 3
U5 LTV817S
LTV817S
0
41
41
R19
0
R11
1k
R18
270
R15 20
TP31
1
1
odometer_A/D
reverse_A/D
7
Figure 2.
Backup Battery Circuit
V_3V3
RDR-3100 User Manual
R40 220
B1
Battery SCH
TP37
1
1
12
2
1
D13
RB705D
3
PIN3(RTC_3V3)
2
1
D12
RB705D
3
8
<
≤
≤
≤
≤
RDR-3100 User Manual
5. Interface
5.1 Connector Type：20 Pin Header，2.0 mm pitch (J2)
Pin
Signal Name I/O Description Characteristics
NO
1 N.C None connector
2 GPS 5V I +5V DC Power Input DC +5V ± 1%.
3 RTC (Backup
voltage)
4 GPS 5V I +5V DC Power Input
5 Reset I Reset (Active low)
6 Boot I Boot mode
7 Back (Reverse
line)
8 N.C None connector
9 Odometer I Odometer Input frequency<32k HZ
10 GND G Ground Reference Ground
11 TXD1 (SiRF 3
TXD1)
12 RXD1 (SiRF 3
RXD1)
13 GND G Ground Reference Ground
14 TXD2 (SiRF 3
TXD2)
I User Supply DC +2.6 ~
+3.6V
DC +2.6 ~ +3.6V.
Current ≤ 10uA w/o battery
8.0 2.3V V
>
IH
IL
VV
ILIH
I Forward or Back Forward (Hi level :>2V)
Backward (Lo level: <0.8V)
Vih > 2V Vil<0.8V
O NMEA (transmit) Car PC
≥≥
(UAR1)
38400bps, 8 data bits, no
parity, 1 stop bit
I NMEA (Receive) Car PC
(UAR1)
O Can bus data (transmit)
Car PC (UAR2)
Vih > VDD-0.1V Vil<0.6V
VDD:3.3V for MCU
VVVV
855.00.3V- 995.115.3 ≥≥
VV
715.0 VVV 375.285.2
OLOH
VVVVV
855.00.3V- 995.115.3 ≤≥≥
ILIH
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