Seagull GPK Bedienungsanleitung

Seagull #GPK

User Manual

Product: Seagull #GPK

Released: 2021-02-18

FW: 2.1

© 2021 Seagull UAV All Rights Reserved. 2
CONTENTS 
 
GENERAL INFORMATION ................................................................................................................................................................................. 3 
CONFIGURING #GPK ....................................................................................................................................................................................... 4 
GENERAL.......................................................................................................................................................................................................................... 4 
SETTINGS AND VALUES TABLE ....................................................................................................................................................................... 5 
FLIGHT CONTROLLER INTEGRATION................................................................................................................................................................ 6 
PIXHAWK /PIXRACER /ARDUPILOT BASED FC............................................................................................................................................................ 6 
PORT / PIN DEFINITIONS................................................................................................................................................................................. 7 
TROUBLESHOOTING........................................................................................................................................................................................ 8 
TECHNICAL SPECIFICATIONS.......................................................................................................................................................................... 8 
 
 

GENERAL INFORMATION

*** Please read this manual thoroughly before connecting and configuring Seagull #GPK ***

Seagull #GPK is an RTK/PPK/MB GNSS receiver which can be used as navigation device for your UAV platform and capable of logging

shutter events from the camera –without requiring external loggers!

#GPK can operate as both BASE and ROVER, depending on the user selection.

Typical precision that can be achieved with #GPK operating in kinematic modes is 1-2.5cm! Results may vary depending on

atmospheric conditions, baseline length, GNSS antenna, multipath conditions, satellite visibility and geometry.

#GPK features:

•High refresh rate –4Hz MB, 5Hz RTK, 10Hz RAW, 10Hz PVT GNSS

•Concurrent GNSS constellations supported –2

•High precision navigation in RTK –2.5cm!

•Internal data logging –RTK / PPK / PVT GNSS

•Event logging –Such as shutter release

•Two operational modes - BASE / ROVER

•Multiple NAV modes: Real Time Kinematic, Post Processed Kinematic, Moving Baseline

CONFIGURING #GPK

GENERAL

#GPK can be configured by “Seagull-GPK-Config.exe” that can be downloaded via the following link:

https://www.seagulluav.com/seagull-gpk-support/

Please use the C USB Port on #GPK to configure.

Seagull #GPK Configurator example photo

SETTINGS AND VALUES TABLE

SETTING NAME

SETTINGS

RANGE

DEFAULT

DESCRIPTION

GENRAL SETTINGS

GPS Function

MANUAL / BASE

/ ROVER

n/a

BASE

This setting defines the #GPK functionality whether

it should be established as base, rover or manually

configured by the user.

Navigation type

RTK / PPK / MB

n/a

RTK

GPS module navigation type whether its Real Time

Kinematic, Post Processed Kinematic or Moving

baseline.

Satellites

GPS and

Glonass / GPS

and Beidou

n/a

GPS /

Glonass

Satellite system to use:

GPS and GLONASS

GPS and BEIDOU

GPK Baudrate

Value

1200 -

960000

115200

Baud rate used for communicating with #MAP-X2 or

other devices that #GPK is connected to.

The baud rate must match the device that #GPK

relates to.

Navigation Frequency

1 –10Hz / AUTO

n/a

AUTO

Navigation rate set for the GNSS receiver. Typically,

it is set to AUTO so #GPK will set the navigation rate

to the maximum possible rate depending on the

navigation type set out.

FEEDBACK SETTINGS

Sync Feedback

DISABLE /

ENABLE

n/a

DISABLE

Enables EVENT PIN logging –only possible when

unit is functioning as ROVER.

Type of Logs

PPK / LLA /

BOTH

n/a

PPK

User can choose what type of log should be

generated –whether Post Processed Kinematic,

LAT/LONG/ALT or both.

IMG Name Prefix

n/a

DSC

User can define what name should be before

numbering of the logged co-ordinates, only valid for

LLA based logs.

BASE RTK SETTINGS

Survey time

Value in seconds

0 <> *a lot

(9e+15)

300

Auto survey for base lock time frame –will wait and

try to lock precise coordinate for the timeframe set

out to survey for.

Accuracy

Value in meters

0 <> *a lot

(9e+15)

Desired auto survey accuracy for the base. Will keep

surveying until the precision is achieved.

BASE FIXED POSITION

Latitude

Value in degrees

0 <> *a lot

(9e+15)

(disabled)

Known fixed position needs to be entered for

ultimate precision.

Longitude

Value in degrees

0 <> *a lot

(9e+15)

(disabled)

Known fixed position needs to be entered for

ultimate precision.

Altitude

Value in meters

0 <> *a lot

(9e+15)

(disabled)

Known fixed altitude needs to be entered for

ultimate precision.

Accuracy

Value in meters

0 <> *a lot

(9e+15)

(disabled)

Enter how accurate the coordinates provided are

Latitude + Longitude

FLIGHT CONTROLLER INTEGRATION

PIXHAWK / PIXRACER / ARDUPILOT BASED FC

Connect the #GPK module that is operating in ROVER mode to Pixhawk1, Pixhawk2, Pixracer or other ArduPilot based flight controllers

directly into the GPS marked ports. There is no need to setup any extra configuration, because all the necessary modes are set by

#GPK.

PORT / PIN DEFINITIONS

PORT

DEFINITION

PINS

Port for connecting to #X2 or

other loggers

VIN (3.9 -12V)

TX (3.3V)

RX (3.3V)

GND

COM

Communication port

PURPLE FOR BASE

GREEN FOR ROVER

VIN (3.9 -12V)

TX (3.3V)

RX (3.3V)

GND

Port for connecting to Flight

Controllers

VIN FC (typically 5V do

not exceed 3.9 –12V

limits)

RX (3.3V)

TX (3.3V)

GND

SYNC

EVENT PIN for internal

SIGNAL PIN

ACTIVATED LOGIC 0V

N / C

(NOT

CONNECTED)

GND

Internal logging START/STOP

button.

MCX style antenna connection

port.

Recommended to use

3.3V dual band active

antenna with LNA.

Controller USB and firmware

update port

The unit can be

powered via USB 4.4 –

12V useful when

operating as a BASE

GNSS USB for updating

firmware and manual setting

setup

TROUBLESHOOTING

To determine the current state of Seagull #GPK - simply read the output of the LEDs' and reference it to the table below:

TECHNICAL SPECIFICATIONS

•Ublox NEO-M8P-2 GNSS receiver

•Following signals supported: L1C/A, L1OF, B1I (GPS/GLONASS/ /BEIDOU)

•Refresh rate: up to 4Hz Moving Baseline, 8Hz Real Time Kinematic, 10Hz RAW (Post Processed Kinematic), 10Hz PVT (UBX

Binary)

•Supply voltage: 3.9 –12v (5v recommended –do NOT exceed 12v!)

•Current draw: 100mA AVERAGE

•Dimensions: 42.7mm x 44.5mm x 10.2mm

•Weight: 16g (without misc. cables, antenna etc.)

SD CARD

ACTION

Blinking

Micro SD card - is not present

Flashing rapidly

Micro SD card initialization error –please check format!

Fading

Micro SD card has been initialized and waiting for log to start

Solid on

Micro SD card –logging has been activated

GNSS LOCK

ACTION

Solid on

GNSS lock has been established

Off

No GNSS lock

RTK LOCK

ACTION

Blinking

RTK FLOAT

Solid on

RTK FIXED

Off

No RTK lock

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