UNICORECOMM UB4B0 User manual

UB4B0
GPS/BDS/GLONASS/Galileo
All-Constellation Multi-Frequency High
Precision Board

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Revision History
Version
Revision History
Date
Ver. 1.0
First release
Aug. 2017
Disclaimer
Information in this document is subject to change without notice and does not
represent a commitment on the part of Unicore Communications, Inc. No part of this
manual may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, for any purpose without the express
written permission of a duly authorized representative of Unicore Communications, Inc.
The information contained within this manual is believed to be true and correct at the
time of publication. © Copyright 2009-2017 Unicore Communications, Inc. All rights
RSV.
Foreword
This <User Manual> offers you information in the features of the hardware, the
installation, specification and use of Unicore UB4B0 product.
For the generic version of this manual, please refer to different part of the manual according to your
purchased product configuration, concerning CORS, RTK and Heading.
Readers it applies to
This <User Manual> is applied to the technicists who know GNSS Receiver to some
extent but not to the general readers.

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Content
1OVERVIEW ............................................... 3
1.1 KEY FEATURES .................................................................................................................................... 4
2INSTALLATION ........................................... 4
2.1 PACKAGE INSPECTION .......................................................................................................................... 4
2.2 ESD PROTECTION ............................................................................................................................... 5
2.3 BOARD OVERVIEW .............................................................................................................................. 6
2.4 INSTALLATION GUIDE ........................................................................................................................... 7
3PC UTILITY CONFIGURATION（UPRECISE）................... 12
3.1 OVERVIEW....................................................................................................................................... 12
3.2 OPERATION STEPS............................................................................................................................. 13
4FIRMWARE UPDATE（WINCONFIG）........................... 14
5HARDWARE INTERFACE .................................... 20
5.1 POWER INPUT .................................................................................................................................. 20
5.2 RF INPUT ........................................................................................................................................ 20
5.3 EXTERNAL CLOCK INPUT ..................................................................................................................... 20
5.4 SERIAL PORT ACCESS .......................................................................................................................... 21
5.5 PIN FUNCTION ................................................................................................................................. 21
APPENDIX I MECHANICAL DRAWING............................ 25
APPENDIX II TECHNICAL SPECIFICATIONS ...................... 26

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1Overview
Thank you for purchasing and using UB4B0 GPS/BDS/GLONASS/Galileo
ALL-Constellation Multi-Frequency High Precision OEM Board. The UB4B0 can provide
reliable centimeter-level accuracy and high accuracy heading output at high update
rate .UB4B0 employ the new generation all-constellation multi-core high precision SoC chip,
Nebulas-II (432 channel tracking), based on mature base line chip (XINGYUN)，55nm low
power consumption，built in broadband ADC and anti-interference unit，integrated two
600MHz ARM processor and special High speed floating point processor，provides more
powerful satellite navigation signal process ability. UB4B0 provide millimeter-lever
carrier-phase observation data and centimeter-lever RTK position Output, supports advanced
multi-path mitigation and low angle tracking；UB4B0 is suitable for high precision surveying
and mapping application, especially for geodetic surveying engineering survey, deformation
monitoring, mechanical control, meteorological monitoring, Precision agriculture,
Continuous operation reference station（CORS）etc. advanced instantaneous RTK and
long-distance RTK.
Fig 1-1 UB4B0 Board

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1.1 Key Features
Based on Nebulas-II new generation multi-system multi-frequency high-performance
SoC Chip
432 channels，super tunnel and dedicated fast acquisition engine
Support BDS、GPS、GLONASS、Galileo、SBAS and QZSS etc.
Hardware size compatible with current GNSS OEM boards
Support GPS/BDS/GLONASS/Galileo single system positioning and multi-system
positioning
Support advanced multi-path mitigation and low angle tracking
Support Rover station RTK
Millimeter-lever Carrier-phase Observation Data
High reliability、High stability、suitable for challenging environment
On board MEMS integrated navigation *
Support RS232, Ethernet，1PPS，external clock input
2Installation
This section contains the list of the product package and the details of product installation.
2.1 Package Inspection
Please check the contents of the package carefully after receiving the package of UB4B0：
UB4B0 board and EVK suite (or evaluation board) (or enclosure)
User manual (CD attached)
Command manual (CD attached)
UPrecise software (CD attached)

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MMCX antenna cable
Cross serial Port cable
2.2 ESD Protection
A lot of components onUB4B0 susceptible to electrostatic damage, which affects IC circuits
and other components. Please follow the instructions below for ESD protection before open
the plastic package:
Electrostatic discharge (ESD) can damage components. Please use under anti-static
work bench, a conductive foam pad, and at the same time, wearing an anti-static wrist
strap. If ESD workstation is not available, wear an anti-static wrist strap and attaching it to
metal parts of your industrial PC in order to obtain protection against static electricity.
Please use the edge of the board, avoiding to touch the components on the board while
fetching or put the boards
Please carefully check for obviously loose or damaged components after removing the
package from the boards. Any questions, please contact your local dealer.
Please save package boxes and plastic containers，for storage and
transport.

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2.3 Board Overview
RF
Section Nebulas External CPU I/O
Antenna
External
Clock
Fig 2-1 structure diagram
1. RF part
The receiver gets filtered and enhanced GNSS signal from the antenna via a coaxial
cable. The RF part convert the RF input signals into the IF signal, and convert IF analog
signal into digital signals required for Nebulas die (UC4C0).
2. Nebulas SoC（UC4C0）
Nebulas-II (UC4C0) is Unicore’s new generation high precision GNSS SoC with
55nm low power design, supports up to 12 digital intermediate frequency or 8 analog
intermediate frequency signals, which can track 12 navigation signals with 432
channels.
3. MEMS*
This is an optional function. If selecting GNSS+INS，UB4B0 is integrated on-board

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MEMS chip, which can maintain excellent application experience even in the most
challenging environments such as urban canyons，and can effectively solve the
interruption of the positioning data caused by the satellite signal covered. It can
provide continuous, high quality and high output rate positioning results. In addition,
UB4B0 also supports odometer Input and external high-precision IMU interface,
providing better integrated navigation and positioning performance.
4. 1PPS
UB4B0 provides1 PPS with adjustable pulse width and polarity and 1 output pulse
width.
5. Event
UB4B0 provides 1 Event Mark Input.
6. I/O
Power input, data communication port, pulse trigger, LED etc.
2.4 Installation Guide
UB4B0 is delivered as a board, users can flexibly assemble according to the scenario and
the market need. Figure below shows the typical installation of UB4B0 with evaluation kit
(EVK), users can also use other enclosures to install receiver, using the same method.

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Fig 2-2 UB4B0 installation
For efficient installation, please get prepared for the following items before installation:
UB4B0 EVK suite (or evaluation board) (or enclosure)
User manual
Command manual
UPrecise software (CD attached)
Qualified antenna
MMCX antenna cable
PC or Laptop with serial ports (Windows XP/Win7 or later), with UPrecise
installed
After the above preparation is made, please follow the steps below to install: ：
Following the steps below to install the device:

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1. Align UB4B0 positioning holes and pins with EVK, and fix UB4B0 in the
EVK. EVK provides power supply and standard communication interface for the board,
to communicate with peripheral devices (such as PC, USB devices1, and so on)..
Fig 2-3 installation step 1
2. Select a GNSS antenna with appropriate gain, and mount it in a open sky
area. Connect the antenna to J1 MMCX port of UB4B0 via coaxial RF cable.
1Only for manufactory test

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Fig 2-4 installation step 2
The RF connector of the board is MMCX, please select the
appropriate cable. The signal gain to board RF connector should be
within 25 to 35dB. The Antenna connector provides 5VDC antenna
feed 。
3. Connect the PC with EVK through serial ports, or through Ethernet ports.
Fig 2-5 installation step 3

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Fig 2-6 installation step 3
4. Connect a 12V adapter with the EVK power input, and switch on to power
the device
Fig 2-7 installation step 4

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5. Start UPRECISE on the PC
6. Refer to UPRECISE online help to send commands or log data for the
receiver
Note: In case the card has not been in use for a long time, or the
distance from last time used location is above 1000Km, a slower fix
may occur. In that case, please use the FRESET command to clear
the older ephemeris and Almanac information (this command will
also clear the Board setup information). After the FRESET command
is executed, the board will be reset, it will take 15 minutes to collect
new ephemeris and Almanac information.
3PC Utility Configuration（UPrecise）
3.1 Overview
UB4B0 Unicore UPRECISE (Control and Display Tool) provides a user-friendly graphical interface to
control and display the operation of your receiver. User can access the functionality and information just
through several clicks。
UPrecise The following features are included in UPRECISE：
Connect the receiver, configure the baud rate
Graphic window for displaying Position of satellite, PRN, and Signal/Noise Ratio
(Constellation View)
Historical and present Trajectory of the receiver and display Position velocity, and
time（Trajectory View）
Graphic interface for data logging, send commands to the Receiver（Logging Control
View）
Console window for sending command to receiver (Console View)

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Sending commands to the Receiver
The trajectory view for displaying the present point and the past point of the Receiver
Upgrading the firmware
TTFF test
Fig 3-1 UPrecise Overview
3.2 Operation Steps
1. Follow the tutorial to install the board, and turn on the EVK switch
2. Click file - > connect the serial port, set the baud rate, the default baud rate is
115200bps
Fig 3-2 Configure baud rate

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3. Click the receiver settings button to configure the NMEA message output. It is
recommended to configure GPGGA, GPGSV, and other messages.
Fig 3-3 configure NMEA output
4. Click the receiver settings button, configure the NMEA message output, and click
send. It is recommended to configure GPGGA, GPGSV, and other statements. or
5. In the dialog window, click on "Send all Message" to complete all the NMEAmessage
output (update rate 1Hz). Right click in the data session window to adjust: output log
font size, stop / resume log output, or clear log content
6. Configure or type commands according to requirements in various UPrecise views
4Firmware Update（WinConfig）
WinConfig(in the attached CD) software is used for the remote update of UB4B0,
please follow the steps below to install the software:
During the firmware update of the board, please stop all the operations to
the device, including the cutoff of the power supply.

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Step 1: Click the program icon to run the software:
Figure 4-1 WinConfig Welcome Interface
Step 2: Click “Next” to browse the firmware update package:
Figure 4-2 Select Firmware Update Package

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Step 3: Click “Next” to display the communication type:
Figure 4-3 Select Communication Type
Step 4：Select the communication type as through Serial Port(COM), click “Next” to
configure:
Figure 4-4 Serial Port Communication Configuration

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Please use COM1 to update firmware.
Step 5: After the configuration of the COM port, click “Next” to prompt the
configuration summary dialog:
Figure 4-5 Serial Port Upgrade Configuration Summary
Step 6：Check the summary to make sure the receiver is correctly configured, then
click “Finish” to prompt the Upgrade window:

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Figure 4-6 Firmware Upgrade Window
Step 7: Click“Upgrade” to start the firmware upgrading process:
Figure 4-7 Serial Port Upgrade Success
The "Upgrade" button is gray and can’t be clicked while the receiver is in the
upgrading process, unless the upgrade is complete, or an error occurs during the
upgrade process.