FixPosition NAV-RTK User manual

2
NAV-RTK SYSTEM
ENGLISHMARCH 2019
OPERATION
MANUAL

Introduction
Specications
How to connect
Port assignment
Pair to Wi-Fi
Software update
Page 5
9
6
11
13
15
QUICK
NAVIGATION
For more information please visit Fixposition.com

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• Maintains cm-precision even in challenging environments
Like between high buildings in cities or between trees in forests
• Precise navigation down to cm
1cm + ppm horizontal- and 1.5cm + ppm vertical-accuracy
• 5 Hz update rate for position, velocity and time
Higher update rates available via software upgrade
• RAW GNSS and real-time solution are logged
Ready for PPK (Post Processed Kinematics)
• Use up to three GNSS constellations
GPS, GLONASS, Galileo or BeiDou
• Ready for PX4 based drones
Like a Yuneec H520
• Network RTK or Base Station needed
• Additional inertial sensors
For RTK + IMU integrated navigation
FEATURES
NAV-RTK is an RTK (Real Time Kinematic)
GNSSsensorthatusesdierentialcarrierphase
positioning technology to provide cm-precision
positioning in real-time. It is the perfect choice for
mapping, inspection, or light-show swarm drones.
INTRODUCTION

7 8
1. Use screws to attach the NAV-RTK sensor to your drone
2. Attach your GNSS antenna on the top
3. Connect your GNSS antenna to the sensor
4. Plug in the Power and Data cables
5. Power up your drone
6.PlacetheBaseStationintoanemptyeld
7. Check the ST16 controller GPS Lock value
3D Lock: 1-5 m accurate
Floating: 0.1-1 m
Fixed: 1-2 cm
8.Whenyousee“Fixed”youcantakeo
FOLLOW THESE STEPS
TO CONNECT

910
5.6 x 2.6 x 2.4cm
76g (with case and Antenna)
-40°C to 85°C
5V to 20V
min. 70mA
avg. 120mA
max. 330mA
UBX; NMEA
Horizontal 1cm + ppm
Vertical 1.5cm + ppm
20s within 1km
30s within 5km
USB
Wi-Fi
Bluetooth
CAN
UART
SMA (GNSS)
I2C
Size
Weight
Operation Range
Input Voltage
Current @ 12V
Protocol
Accuracy
Time to cm Accuracy
Connectivity
SPECIFICATIONS
OUR SENSOR

11 12
1
2
3
4
5
6
Port 1: UART/I2C Connector
VCC
RXD
TXD
SCL
SDA
GND
Supply Voltage
Serial Port
Serial Port
DDC Clock
DDC Data
Ground
Port 2: Micro-USB Connector
Port 3: GNSS Connector
For Log-Data Download and Software Update
Please make sure the RTK sensor is powered on
ASSIGNEMENT
PORT
8.25
3.75
1.25 1.75
4.25
10.75
1.750.2
6.25
1.25
4.25
1.00
17.70
25.40
13.05
Port 1
5V-20V
3.3V
3.3V
3.3V
3.3V
GND
Circuit No. 1
Port 2 Port 3

13 14
AND SETUP NTRIP/CORS
PAIR TO WI-FI
CONTENT OF
NAV-VR1.CFG
[network]
ssid = “abcdef”
psk = “1234567890”
[rtknav]
reference-src = account:password@ip:port/mountpoint
Connect the NAV-RTK Sensor via USB, a folder will open
Inthefolder,youcanndalecalled“nav-vr1.cfg”
Ifitdoesn’texist,createanewletitled“nav-vr1.cfg”andenterthe 
information you see on the left
Input the ssid and psk values of your Wi-Fi
On Windows use Wordpad instead of Editor to get correct line breaks
Input your NTRIP/CORS account in reference-src
(only for Network RTK)
Save “nav-vr1.cfg” and close it
Safely remove the drive (important)
Remove the USB cable,
NAV-RTK will then connect to your Wi-Fi
1.
2.
3.
4.
5.
6.
7.

15 16
OF THE RTK SENSOR
SOFTWARE UPDATE
Power up the sensor
Connect the sensor to your computer with Micro USB
Open the now available mass storage called “DATA”
Open the folder called “Firmware”
If there is no folder with this name please create it
Copy “image.swu” to the folder “Firmware”
(provided by Fixposition)
Safely remove the mass storage from the computer
Thisisimportanttoensurethelesystemdoesn’tgetcorrupted
Unplug the Micro USB cable from the sensor
Wait until the sensor stops blinking
First it blinks quickly, after a few seconds it blinks slower while updating
Your sensor is now successfully updated
1.
2.
3.
4.
5.
6.
7.
8.
9.
UPDATE BY CABLE
Power up the sensor
Connectthesensortothewi(See page 14)
Find the IP address of the sensor
(Check your router or scan the network for NAV-VR1-IP)
On a computer in the same network open http://IP:8080/
(For example http://192.168.43.19:8080/)
Upload “image.swu”
Wait until the sensor stops blinking
First it blinks quickly, after a few seconds it blinks slower while updating
Your sensor is now successfully updated
UPDATE BY WIFI
1.
2.
3.
4.
5.
6.
7.
Firmware logs nav-vr1.cfg
F: DATA