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Related Manuals for UNICORECOMM UM4B0
Summary of Contents for UNICORECOMM UM4B0
- Page 1 INSTALLATION AND OPERATION USER MANUAL WWW.UNICORECOMM.COM UM4B0 GPS/BDS/GLONASS/Galileo All-constellation All-frequency RTK Positioning Module Copyright© 2009-2021, Unicore Communications, Inc. Data subject to change without notice.
- Page 2 Revision History Version Revision History Date Ver. 1.0 First Edition Feb. 2017 R3.1 Add the related description to clarify the VCC restrictions 2019-08-22 R3.2 Chapter 2.2: add the working current info of No.17 pin 2019-09-18 2.5 Physical Specifications: update the weight value from R3.3 8.8 to 9.2 2020-02-26...
- Page 3 Foreword This <User Manual> offers you information in the features of the hardware, the installation, specification and use of UNICORECOMM UM4B0 product. This manual is a generic version. Please refer to the appropriate part of the manual according to your purchased product configuration, concerning CORS, RTK and Heading.
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Page 4: Table Of Contents
LECTRICAL PECIFICATIONS ......................7 PERATIONAL ONDITIONS ......................7 HYSICAL PECIFICATIONS 3 HARDWARE DESIGN ........8 ......................8 ESIGN IN ONSIDERATIONS UM4B0 R ......................9 EFERENCE ESIGN ............................10 PCB P ........................11 ACKAGING ..........................12 ESET IGNAL ..........................12 NTENNA .................... -
Page 5: Introduction
1 Introduction 1.1 Overview UM4B0 is a high precision positioning and heading RTK module developed by Unicore Communications, targeting light robots, UAVs, intelligent vehicles, GIS information collection, etc. By employing a single UC4C0 (432 channel tracking) baseband chip and a single RF chip, using single-sided SMD packaging, UM4B0 has achieved the smallest size (30x40mm) in this industry with high accuracy heading and positioning output. -
Page 6: Technical Specifications
UM4B0 User Manual 1.3 Technical Specifications Table 1-1 Performance Specifications 432 channels, based on Channels RTK Initialization Time <5s (typical) NebulasII SoC GPS L1/L2/L5 BDS B1I/B2I/B3I/B1C/B2a Initialization Frequency GLONASS L1/L2 >99.9% Reliability Galileo E1/E5a/E5b Qzss L1/L2/L5 Horizontal: 1.5m Cold Start <25s... -
Page 7: Hardware
12 navigation signals with 432 channels. 3. 1PPS UM4B0 outputs 1 PPS with adjustable pulse width and polarity. 4. Event UM4B0 provides 1 Event Mark Input with adjustable pulse width and polarity. 2 Hardware 2.1 Dimensions Table 2-1 Dimensions Min. -
Page 8: Pin Definition (Top View)
UM4B0 User Manual Figure 2-1 Mechanical Dimensions 2.2 Pin Definition (Top View) Figure 2-2 UM4B0 Pin Diagram... - Page 9 Table 2-2 Pin Definition Description Ground ANT_IN GNSS antenna signal input Ground Ground ANT_PWR GNSS antenna power supply Ground GNSS antenna open circuit indicator ANT_NLOD 1: normal 0: antenna is open circuit GNSS antenna short circuit indicator ANT_FFLG 1: normal 0: antenna is short circuit Power DGND/GND...
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Page 10: Electrical Specifications
UM4B0 User Manual Description SPI_CLK SPI clock SPI_SS0 SPI chip select 0 SPI_SS1 SPI chip select 1 3.3V_VCC Power Power Supply (+3.3V) 3.3V_VCC Power Power Supply (+3.3V) Ground Ground TXD1 COM 1 transmit RXD1 COM 1 receive TXD2 COM 2 transmit... -
Page 11: Operational Conditions
Item Unit Maximum ESD stress VESD(HBM) ±2000 2.4 Operational Conditions Table 2-4 Operational Conditions Item Typical Unit Condition Power Supply (VCC) Pulse current* Iccp Vcc = 3.3 V LOW Level Input Vin_low_1 -0.3 VCC*0.3 Voltage High Level Input Vin_high_1 VCC*0.7 VCC+0.3 Voltage LOW Level Output... -
Page 12: Hardware Design
3 Hardware Design 3.1 Design in Considerations To make UM4B0 work properly, you need to properly connect the following: The module VCC power-on behavior is repeatable, the initial level is lower than 0.4V, and the undershoot and ringing should be guaranteed to be within 5% VCC ... -
Page 13: Um4B0 Reference Design
Antenna interface: Make sure the antenna impedance matches, and the cable is short without any kinks, try to avoid all acute angles Try to avoid designing in any circuits underneath UM4B0 This module is a temperature sensitive device, so dramatic changes in temperature will result in reduced performance. -
Page 14: Pins
UM4B0 User Manual Figure 3-2 UM4B0 Reference Design 3.3 Pins Table 3-1 Pin Notes Pin Name Description Notes Power 31, 32 Power Voltage Supply Stable, clean low ripple power Supply supply, peak ripple power lower than 50mVpp is preferred ANT_PWR... -
Page 15: Pcb Packaging
Data Restore factory settings by System FRESET_N Hardware lowering FRESET_N for no less Reset (low than 5 seconds effective) PPS signal EVENT EVENT signal Event 3.4 PCB Packaging Figure 3-3 UM4B0 recommended PCB Packaging (unit: mil, in brackets: mm) -
Page 16: Reset Signal
UM4B0 User Manual 3.5 Reset Signal UM4B0 module can’t work properly unless it is correctly reset after power on. To ensure effective reset, the reset pin (RST) and power supply pin (VCC) must meet the following time sequence requirement. To reset UM4B0 during normal operation, please pull RST pin to low level for more than 5ms. - Page 17 ANT_BIAS ANT_IN ANT_PWR UM4B0 Figure 3-6 UM4B0 External Antenna Feed Reference Circuit Remarks: L1, feed inductor, 68nH RF inductor in 0603 package is recommended; C1, decoupling capacitor, it is recommended to connect two capacitors of 100nF/100pF in parallel; C2, DC blocking capacitor, recommended 100pF capacitor.
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Page 18: Installation And Configuration
Step 1: Make sure to take all the anti-static measures, such as wearing an anti- static wrist strap, grounding the workbench; Step 2: Align UM4B0 transfer board positioning holes and pins with EVK, and fix it in the EVK. EVK provides power supply and standard communication interface... - Page 19 Step 3: Select the GNSS antenna with appropriate gain, and fix it in a stable, non- block area, using the coaxial radio frequency cable to connect the antenna to UM4B0 EVK; Step 4: Connect the PC to the EVK serial port through direct serial cable;...
- Page 20 UM4B0 User Manual Figure 4-3 Connect the Serial Port Step 5: Connect a 12V adapter to the EVK power input, and switch on to power the device; Figure 4-4 Connect the Antenna Step 6: Open the UPrecise software on the PC;...
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Page 21: Start Up
4.3 Start Up The power supply for UM4B0 is 3.3VDC. Before powering on the device, please connect UM4B0 serial port to the GNSS antenna. The receiver is started and the communication is connected after powering up. Testing tools are provided for module testing. -
Page 22: Operation Procedures
UM4B0 User Manual 4.4.1 Operation Procedures Step 1. Follow 4.2 Installation Guide to connect the power source, antenna to the board, and turn on the EVK switch Step 2. Click file - > connect the serial port, and set the baud rate; the default baud... -
Page 23: Configuration Commands
(If parameters are null, there will be only one heading in the command). Header field contains the command name or message headers. UM4B0 is simple to use, and common instructions are shown in the following table: Command Name Description Restore the factory default settings. -
Page 24: Rtk Reference Station Configuration
UM4B0 User Manual Command Name Description mode movingbase Set the moving base station mode Set the default rover station mode (This command mode rover transfers the receiver from base station mode to rover mode.) rtcm1033 comx 10 rtcm1006 comx 10... -
Page 25: Rtk Rover Configuration
rtcm1124 com2 1 saveconfig 5.2 RTK Rover Configuration RTK Rover stations (rover station) receive differential correction data sent from reference stations and receive satellite signals to provide an RTK positioning solution and realize RTK high-precision positioning with cm or mm-level accuracy. Common instructions for configuring RTK rover are as follows: gngga 1 saveconfig... -
Page 26: Antenna Detection
If the antenna is not fed by ANT_PWR but by other means, the query result is invalid. 7 Firmware Upgrade Uprecise software is used for the remote update of UM4B0. Please follow the steps below to upgrade the device: Figure 7-1 Update Interface Click “…”... - Page 27 Figure 7-2 Update Steps Waiting for the process to complete 100% (the upgrade time is normally within 5min): Figure 7-3 Update Steps Please use COM1 only to update firmware.
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Page 28: Production Requirement
UM4B0 User Manual 8 Production Requirement Recommended thermal cycle curve is as follows: Figure 8-1 Soldering Temperature Temperature rising stage Rising slope: Max. 3℃/s Rising temperature range:50℃-150℃ Preheating stage Preheating time: 60 – 120 s Preheating temperature range: 150 - 180℃... -
Page 29: Packaging
9 Packaging UM4B0 modules are delivered in trays, which is suitable for mainstream SMT equipment. Each box contains 5 trays, so there are 150 UM4B0 modules in the box. Table 9-1 Package Information Description 10 trays/box 10 antistatic packaging boxes/tray... - Page 30 和芯星通科技（北京）有限公司 Unicore Communications, Inc. 北京市海淀区丰贤东路7号北斗星通大厦三层 F3, No.7, Fengxian East Road, Haidian, Beijing, P.R.China, 100094 www.unicorecomm.com Phone: 86-10-69939800 Fax: 86-10-69939888 info@unicorecomm.com www.unicorecomm.com...
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