FixPosition NAV-RTK Operation Manual

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FixPosition NAV-RTK Operation Manual | Manualzz

MARCH 2019

OPERATION

MANUAL

NAV-RTK SYSTEM

ENGLISH

2

QUICK

NAVIGATION

Introduction

How to connect

Specifications

Port assignment

Pair to Wi-Fi

Software update

Page 5

6

9

11

13

15

For more information please visit Fixposition.com

5

INTRODUCTION

NAV-RTK is an RTK (Real Time Kinematic)

GNSS sensor that uses differential 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.

FEATURES

• 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

6

TO CONNECT

FOLLOW THESE STEPS

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 field

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 off

7 8

9

OUR SENSOR

SPECIFICATIONS

Size

Weight

Operation Range

Input Voltage

Current @ 12V

Protocol

Accuracy

Time to cm Accuracy

Connectivity

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

10

PORT

ASSIGNEMENT

Port 1: UART/I2C Connector

3

4

1

2

5

6

VCC

RXD

TXD

SCL

SDA

GND

Supply Voltage

Serial Port

Serial Port

DDC Clock

DDC Data

Ground

5V-20V

3.3V

3.3V

3.3V

3.3V

GND

Port 2: Micro-USB Connector

For Log-Data Download and Software Update

Please make sure the RTK sensor is powered on

Port 3: GNSS Connector

11

Port 2

25.40

13.05

Port 3

1.00

17.70

Port 1

10.75

Circuit No. 1

1.25

0.2

6.25

1.75

4.25

12

8.25

1.25

3.75

1.75

4.25

CONTENT OF

NAV-VR1.CFG

[network] ssid = “abcdef” psk = “1234567890”

[rtknav] reference-src = account:password@ip:port/mountpoint

13

PAIR TO WI-FI

AND SETUP NTRIP/CORS

1.

Connect the NAV-RTK Sensor via USB, a folder will open

2.

In the folder, you can find a file called “nav-vr1.cfg”

If it doesn’t exist, create a new file titled “nav-vr1.cfg” and enter the information you see on the left

3.

Input the ssid and psk values of your Wi-Fi

On Windows use Wordpad instead of Editor to get correct line breaks

4.

Input your NTRIP/CORS account in reference-src

(only for Network RTK)

5.

Save “nav-vr1.cfg” and close it

6.

Safely remove the drive (important)

7.

Remove the USB cable,

NAV-RTK will then connect to your Wi-Fi

14

SOFTWARE UPDATE

OF THE RTK SENSOR

UPDATE BY CABLE

1.

Power up the sensor

2.

Connect the sensor to your computer with Micro USB

3.

Open the now available mass storage called “DATA”

4.

Open the folder called “Firmware”

If there is no folder with this name please create it

5.

Copy “image.swu” to the folder “Firmware”

(provided by Fixposition)

6.

Safely remove the mass storage from the computer

This is important to ensure the file system doesn’t get corrupted

7.

Unplug the Micro USB cable from the sensor

8.

Wait until the sensor stops blinking

First it blinks quickly, after a few seconds it blinks slower while updating

9.

Your sensor is now successfully updated

15

F: DATA

Firmware logs nav-vr1.cfg

UPDATE BY WIFI

1.

Power up the sensor

2.

Connect the sensor to the wifi (See page 14)

3.

Find the IP address of the sensor

(Check your router or scan the network for NAV-VR1IP )

4.

On a computer in the same network open http:// IP :8080/

(For example http:// 192.168.43.19

:8080/)

5.

Upload “image.swu”

6. Wait until the sensor stops blinking

First it blinks quickly, after a few seconds it blinks slower while updating

7.

Your sensor is now successfully updated

16

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