Global Sat EM-408 Manual de usuario

環天衛星科技股份有限公司

PRODUCT USER MANUAL

GPS ENGINE BOARD

EM-408

GlobalSat Technology Corporation

台北縣中和市建一路 186 號16 樓(遠東世紀廣場)

16F ,No.186,Chien 1 Road, 235Chung Ho City,Taipei Hsien, Taiwan ,R.O.C.

Tel: 886-2-8226-3799(Rep.) Fax: 886-2-8226-3899

Web: www.globalsat.com.tw E-mail:[email protected]

Features:

SiRF starⅢhigh performance GPS Chip Set

Very high sensitivity (Tracking Sensitivity: -159 dBm)

Extremely fast TTFF (Time To First Fix) at low signal level

Compact size (36.4mm * 35.4 mm * 8.3mm) suitable for space-sensitive application

Support NMEA 0183 and SiRF binary protocol

Specification:

General

Chipset SiRFStarⅢ

Frequency L1, 1575.42 MHz

C/A code 1.023 MHz chip rate

Channels 20 channel all-in-view tracking

Sensitivity -159 dBm

Accuracy

Position 10 meters, 2D RMS

5 meters, 2D RMS, WAAS enabled

Velocity 0.1 m/s

Time 1us synchronized to GPS time

Datum

Default WGS-84

Acquisition Time

Reacquisition 0.1 sec., average

Hot start 1 sec., average

Warm start 38 sec., average

Cold start 42 sec., average

Dynamic Conditions

Altitude 18,000 meters (60,000 feet) max

Velocity 515 meters /second (1000 knots) max

Acceleration Less than 4g

Jerk 20m/sec **3

Power

Main power input 3.3V DC input

Power consumption 75mA (Continuous mode)

Interface

Dimension 36.4mm * 35.4mm * 8.3mm

Baud rate 4,800 to 57,600 bps adjustable

Electrical level TTL level, Output voltage level: 0V ~ 2.85V

Output message SiRF binary or

NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL

Environmental

Operating Temp -40℃to +85℃

Dimensions

Pin Assignment

Pin description

* VIN (DC power input):

This is the main DC supply for a 3.3V DC input power module board.

* GPS-TX:

This is the main transmits channel for outputting navigation and measurement

data to user’s navigation software or user written software.

Output TTL level, 0V ~ 2.85V

* GPS-RX:

This is the main receive channel for receiving software commands to the engine

board from SiRFdemo software or from user written software.

* GND:

GND provides the ground for the engine board. Connect all grounds.

* Enable/Disable:

On/Off

SOFTWARE COMMAND

NMEA Output Command

GGA-Global Positioning System Fixed Data

Table B-2 contains the values for the following example:

$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M,,,,0000*18

Table B-2 GGA Data Format

Name

Example

Units

Description

Messa

e ID

GPGGA GGA

rotocol heade

UTC Time 161229.487 hhmmss.sss

Latitude 3723.2475 ddmm.mmmm

/S Indicato

=north or S=south

Lon

itude 12158.3416 dddmm.mmm

E/W Indicato

W E=east or W=wes

Position Fix Indicato

1 See Table B-3

Satellites Use

07 Ran

e 0 to 12

HDOP 1.0 Horizontal Dilution of Precision

MSLAltitude19.0 meters

Units M meters

Geoid Se

aration1meters

Units M meters

e of Diff. Corr. second

ull fields when DGPS is not used

Diff. Ref. Station ID 0000

Checksu

*18

<CR><LF> End of messa

e termination

SiRF Technology Inc. does not support geoid corrections. Values are WGS84 ellipsoid heights.

Table B-3 Position Fix Indicator

Value Descri

tion

0 Fix not available or invali

1 GPS SPS Mode

fix vali

2 Differential GPS

SPS Mode

fix vali

3 GPS PPS Mode

fix vali

GLL-Geographic Position-Latitude/Longitude

Table B-4 contains the values for the following example:

$GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C

TableB-4GLLDataFormat

Name Exam

le Units Desc

tion

Messa

e ID

GPGLL GLL

rotocol heade

Latitude 3723.2475 ddmm.mmmm

/S Indicato

=north or S=south

Lon

itude 12158.3416 dddmm.mmm

E/W Indicato

W E=east or W=wes

UTC Position 161229.487 hhmmss.sss

Status A A=data valid or V=data not valid

Checksu

*2C

<CR><LF> End of messa

e termination

GSA-GNSS DOP and Active Satellites

Table B-5 contains the values for the following example:

$GPGSA,A,3,07,02,26,27,09,04,15,,,,,,1.8,1.0,1.5*33

TableB-5GSADataFormat

Name Example Units Description

Message ID $GPGSA GSA protocol header

Mode1 A See Table B-6

Mode2 3 See Table B-7

Satellite Used107 Sv on Channel 1

Satellite Used102 Sv on Channel 2

…..

Satellite Used1Sv on Channel 12

PDOP 1.8 Position dilution of Precision

HDOP 1.0 Horizontal dilution of Precision

VDOP 1.5 Vertical dilution of Precision

Checksum *33

<CR><LF> End of message termination

1. Satellite used in solution.

TableB-6Mode1

Value Description

M Manual-forced to operate in 2D or 3D mode

A 2Dautomatic-allowed to automatically switch 2D/3D

TableB-7Mode2

Value Description

1 Fix Not Available

2 2D

3 3D

GSV-GNSS Satellites in View

Table B-8 contains the values for the following example:

$GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71

$GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41

TableB-8GSVDataFormat

Name

Example

Description

Messa

e ID

GPGSV GSV

rotocol heade

umber of Messa

es12 Ran

e 1 to 3

Messa

e Numbe

11 Ran

e 1 to 3

Satellites in View 07

Satellite ID 07 Channel 1

(

Ran

e 1 to 32

)

Elevation 79 de

rees Channel 1

(

Maximum90

)

Azimuth 048 de

rees Channel 1

(

True

Ran

e 0 to 359

)

SNR

(

C/No

)

42 dBHz Ran

e 0 to 99

null when not trackin

……. …….

Satellite ID 27 Channel 4

(

Ran

e 1 to 32

)

Elevation 27 De

rees Channel 4

(

Maximum90

)

Azimuth 138 De

rees Channel 4

(

True

Ran

e 0 to 359

)

SNR

(

C/No

)

42 dBHz Ran

e 0 to 99

null when not trackin

Checksu

*71

<CR><LF> End of messa

e termination

Depending on the number of satellites tracked multiple messages of GSV data may be required.

RMC-Recommended Minimum Specific GNSS Data

Table B-10 contains the values for the following example:

$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598,,*10

TableB-10RMCDataFormat

Name

Example

Units

Description

Messa

e ID

GPRMC RMC

rotocol heade

UTC Time 161229.487 hh

mss.sss

Status A A=data valid or V=data not valid

Latitude 3723.2475 ddmm.mmmm

/S Indicator

=north or S=south

Lon

itude 12158.3416 dddmm.mmm

E/W Indicato

W E=east or W=wes

eed Over Ground 0.13 knots

Course Over Ground 309.62 de

rees True

Date 120598 ddmm

netic Variation2de

rees E=east or W=wes

Checksu

*10

<CR><LF> End of messa

e termination

SiRF Technology Inc. does not support magnetic declination. All “course over ground” data are

geodetic WGS48 directions.

VTG-Course Over Ground and Ground Speed

$GPVTG,309.62,T,,M,0.13,N,0.2,K*6E

Name

Example

Units

Description

Messa

e ID

GPVTG VTG

rotocol heade

Course 309.62 de

rees Measured headin

Reference T True

Course de

rees Measured headin

Reference M Ma

netic

eed 0.13 knots Measured horizontal s

eed

Units

Knots

eed 0.2 Km/h

Measured horizontal s

eed

Units K Kilometers

er hou

Checksu

*6E

<CR><LF> End of messa

e termination

2.2 NMEA Input Command

A). Set Serial Port ID:100 Set PORTA parameters and protocol

This command message is used to set the protocol(SiRF Binary, NMEA, or

USER1) and/or the communication parameters(baud, data bits, stop bits, parity).

Generally,this command would be used to switch the module back to SiRF Binary

protocol mode where a more extensive command message set is available. For

example,to change navigation parameters. When a valid message is received,the

parameters will be stored in battery backed SRAM and then the receiver will restart

using the saved parameters.

Format:

$PSRF100,<protocol>,<baud>,<DataBits>,<StopBits>,<Parity>*CKSUM

<protocol> 0=SiRF Binary, 1=NMEA, 4=USER1

<baud> 1200, 2400, 4800, 9600, 19200, 38400

<DataBits> 8,7. Note that SiRF protocol is only valid f8

Data bits

<StopBits> 0,1

<Parity> 0=None, 1=Odd, 2=Even

Example 1: Switch to SiRF Binary protocol at 9600,8,N,1

$PSRF100,0,9600,8,1,0*0C<CR><LF>

Example 2: Switch to User1 protocol at 38400,8,N,1

$PSRF100,4,38400,8,1,0*38<CR><LF>

**Checksum Field: The absolute value calculated by exclusive-OR the

8 data bits of each character in the Sentence,between, but

excluding “$” and “*”. The hexadecimal value of the most

significant and least significant 4 bits of the result are convertted

to two ASCII characters (0-9,A-F) for transmission. The most

significant character is transmitted first.

**<CR><LF> : Hex 0D 0A

Otros manuales para EM-408

Otros manuales de GPS de Global Sat

Global Sat

Global Sat SiRF star III BT-359 Manual de usuario

Global Sat

Global Sat BU-353N5 Manual de usuario

Global Sat

Global Sat GS-Traq TR-206 Manual de usuario

Global Sat

Global Sat BU-303 Manual de usuario

Global Sat

Global Sat TR-203A Manual de usuario

Global Sat

Global Sat BR-355S4 Manual de usuario

Global Sat

Global Sat ET-332 Manual de usuario

Global Sat

Global Sat ER-332 Manual de usuario

Global Sat

Global Sat BT-368i Manual de usuario

Global Sat

Global Sat Globalsat BT-359 Manual de usuario

Global Sat

Global Sat GD-102 Manual de usuario

Global Sat

Global Sat EB-3531 Manual de usuario

Global Sat

Global Sat TR-102 Manual de usuario

Global Sat

Global Sat TR-102 Manual de usuario

Global Sat

Global Sat ER-411 Manual de usuario

Global Sat

Global Sat Globalsat BT-359 Manual de usuario

Global Sat

Global Sat TR-600 Manual de usuario

Global Sat

Global Sat BT-318 Manual de usuario

Global Sat

Global Sat BU-353S4 Manual de usuario

Global Sat

Global Sat SD-502 SDIO Manual de usuario

Global Sat

Global Sat GB-1000 Manual de usuario

Global Sat

Global Sat GPS Director YE-GD101 Manual de usuario

Global Sat

Global Sat SD-502 SDIO Manual de usuario

Global Sat

Global Sat BT-368i Manual de usuario

Manuales populares de GPS de otras marcas

Raven

Raven Cruizer II Manual

Hama

Hama 53118 Manual de usuario

Garmin

Garmin SOUNDER 125 Manual de usuario

Garmin

Garmin DEZL 580 Manual de usuario

Jigabot

Jigabot EX Manual de usuario

Pointer

Pointer Cellocator CelloTrack XT LTE Guía de instalación

Queclink

Queclink GV55LITE Manual de usuario

Voxson

Voxson Voxtrack GPS500 Manual de instrucciones

Garmin

Garmin ECHOMAP PLUS Manual de usuario

Starcom Systems

Starcom Systems Kylos Compact Manual de usuario

Garmin

Garmin 15 H Series Manual de usuario

Cobra

Cobra Marine MC 600Ci Manual de usuario

Cellocator

Cellocator CelloTrack T Manual de usuario

Enfora

Enfora Mini-MT GSM2228UG001 Manual de usuario

Magellan

Magellan eXplorist 100 Manual de usuario

LTE

LTE G50B Manual de usuario

Garmin

Garmin DEZL OTR500 Manual de usuario

SkyGolf

SkyGolf SkyCaddie SG1 Manual de usuario