Seagull GPK Bedienungsanleitung

Seagull #GPK

User Manual

Product: Seagull #GPK

Released: 2018-12-06

FW: 1.0

CONTENTS

GENERAL INFORMATION................................................................................................... 3

CONFIG FILE.................................................................................................................. 4

GENERAL ........................................................................................................................................................4

EDITING ..........................................................................................................................................................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

PPK LOGGING................................................................................................................ 9

PPK PROCESSING...........................................................................................................................................9

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 integrated into

#MAP-X2 for ultimate camera trigger and logging precision.

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

When operating in BASE mode, #GPK can LOG RAW messages for use with PPK processing.

Typical precision that can be achieved with #GPK via RTK is 1-2cm!

#GPK features:

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

•High precision navigation –1-2cm!

•Easy configuration - via internal microSD card

•Base role - PPK BASE Logging

•Dual configurable capabilities - BASE and ROVER

•#MAP-X2 Compatibility - for precision triggering and navigation

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

CONFIG FILE

GENERAL

The CONFIG.txt is located on the SD card within the #GPK. This file is used to configure the modes, settings and parameters for the

specific needs with its application or use case.

To edit the CONFIG.txt file, simply insert it to a PC/Mac and edit the values after the ":" (comma) in the file.

EDITING

Please note than when saving the changes, please keep the text format in "ANSI" –other formats might lead to corruption of the

CONFIG.txt file.

Also, don't insert any spaces or other characters than listed within the brackets –doing so will corrupt the file, so it can't be read by

#GPK.

NOTE: In a case that the CONFIG.txt file becomes corrupt or deleted, it will be re-created if an empty card is inserted, during the

powerup of #GPK and will be initiated with DEFAULT values.

Example of default #GPK - CONFIG.txt file:

SETTINGS AND VALUES TABLE

SETTING NAME

SETTINGS

RANGE

DEFAULT

DESCRIPTION

GPS GENRAL SETTINGS

GPS type

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.

GNSS configuration

G&R / G&B

n/a

G&R

Satellite system to use:

G&R –GPS and GLONASS

G&B –GPS and BEIDOU

Baud rate

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 rate

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.

BASE AUTO SURVEY

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

COM

Communication port

PURPLE FOR BASE

GREEN FOR ROVER

1: VIN (3.9 -12V)

2: TX (3.3V)

3: RX (3.3V)

4: GND

LOG

Port for connecting to #X2 or

other loggers

1: VIN (3.9 -12V)

2: TX (3.3V)

3: RX (3.3V)

4: GND

Port for connecting to Flight

Controllers

1: VIN FC (typically 5V

do not exceed 3.9 –

12V limits)

2: RX (3.3V)

3: TX (3.3V)

4: GND

PPK BASE logging button

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

•u-blox NEO-M8P-2, L1/B1, GPS/GLONASS/BEIDOU GNSS receiver –update rate up to 10Hz

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

•Current draw: 80mA MIN, 100mA AVERAGE, 120mA MAX

•Dimensions: 45mm x 41mm x 11mm

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

POWER

ACTION

Solid on

The unit is powered on

Off

The unit is powered off

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

PPK LOGGING

#GPK is capable of PPK logging when settings are configured in the CONFIG.txt file on the #GPK internal microSD card.

If the #GPK unit is set to operate as a BASE, then PPK logging can be initiated via press of the LOGGING button that is present on the

#GPK module.

If the #GPK unit is set to operate as a ROVER PPK, then button push logging is disabled and messages are only to be logged with

#MAP-X2.

PPK PROCESSING

Generated LOG is in u-blox UBX format, in order to do the post processing please use RTKLIB conv to convert the PPK UBX file to

RINEX 3.03.

*** Download RTKLIBv2.4.3.zip from HERE ***

STEP 1: Open "RTKLIB CONV" and select the following options.

STEP 2: Add "PPK.bin" file and choose format "u-blox".

STEP 3: Click "Convert" for the LOGS generated from #MAP-X2 and the #GPK units.

STEP 4: Open "RTKPOST" and input "BASE.obs" file, "ROVER.obs" and "ROVER.nav" files.

STEP 5: Click "Options" and set the following settings:

"SETTINGS 1" tab

Positioning mode: Kinematic/Static

Elevation Mask / SNR Mask: 20

REC Dynamics: ON

"SETTINGS 2" tab

Integer Ambiguity Res: Fix and Hold

Max Pos Var for AR / AR Filter: ON

"POSITIONS" tab

Base Station: RINEX Header Position

STEP 6: Click "EXECUTE" and wait until process is complete.

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