GPS6021-X6 –CF-Card High Sensitivity GPS Receiver

GPS6021-X6 –CF-Card High Sensitivity GPS Receiver
0. Quick Use
0.1 Check GPS Package
0.1.1 Standard Package
GPS-6021-X6 (GPS Receiver) + CD + Warranty Card + quick installation reference.
0.1.2 Optional Package
The shop may bundle different accessories for you as follows:
1. Active Antenna
2. PCMCIA Adapter
3. PDA Holder
4. Software (Navigation Software + Digital Map)
5. Others
0.2 Check CF Card Slot
1. The GPS-6021-X6 is a Type I CF device. Many new PDAs are equipped with Type II CF slot.
Make sure to slot in properly to avoid damage.
2. When you connect GPS-6021-X6 with your PC (Webpad PC, Tablet PC, Laptop PC or other
PCs) with PCMCIA adapter, you need to point to an installation file included in the CD.
0.3 Connect GPS-6021-X6 to your machine.
0.4 Turn on your machine.
0.5 Start GPS function
You may need to execute navigation software, then link to GPS device. Your GPS-6021-X6
starts to
provide you full GPS function.
1. Introduction
1.1 Overview
The SPK GPS-6021-X6 High Sensitivity CF GPS Receiver is a total solution GPS receiver,
designed
based on SiRF Star II Architecture with the newest high sensitivity system. This revolutionary
system
provides you unbelievable positioning sensitivity allowing you to have easy position fix in
urban canyon
conditions. This positioning application meets strict needs such as car navigation, mapping,
surveying, security,
agriculture and so on. Only clear view of sky and certain power supply are necessary to the
unit. It
communicates with other electronic utilities via compatible dual-channel through RS-232 and
saves critical
satellite data by built–in backup memory. With low power consumption, the GPS-6021-X6
tracks up to 12
satellites at a time, re-acquires satellite signals in 100 ms and updates position data every
second.
Trickle-Power allows the unit operates a fraction of the time and Push-to-Fix permits user to
have a quick
position fix even though the receiver usually stays off.
1.2 Features
The GPS-6021-X6 provides a host of features that make it easy for integration and use.
1. SiRF Star II chipset with embedded ARM7TDMI CPU available for customized applications in
firmware.
2. High performance receiver tracks up to 12 satellites while providing first fast fix and low
power consumption.
3. Differential capability utilizes real-time RTCM corrections producing 1-5 meter position
accuracy.
4. Compact design ideal for applications with minimal space.
5. A rechargeable battery sustains internal clock and memory. It is recharged during normal
operation.
6. User initialization is not required.
7. Dual communication channels and user selectable baud rates allow maximum interface
capability and flexibility.
8. FLASH based program memory: New software revisions upgradeable through serial
interface.
9. LED display status: The LED will be “ON” when power connected.
10. Built-in WAAS / EGNOS demodulator.
11. Small size.
1.3 Technology specifications
1.3.1 Physical Dimension
Single construction integrated antenna/receiver.
Size: 83.0(H) x 47.5(W) x 14.5(D) (mm)
3.27"(H) x 1.87"(W) x 0.57"(D).
1.3.2 Environmental Characteristics
1) Operating temperature: -40oC to +85oC(internal temperature).
2) Storage temperature: -55oC to +100oC.
1.3.3 Electrical Characteristics
1) Input voltage: +2.5 ~ 5.5 VDC without accessories.
2) Backup power: 3V Rechargeable Lithium cell battery, up to 767 hours (31.9 days) discharge.
1.3.4 Performance
1) Tracks up to 12 satellites.
2) Update rate: 1 second.
3) Acquisition time
Reacquisition 0.1 sec., averaged
Hot start 8 sec., averaged
Warm start 38 sec., averaged
Cold start 45 sec., averaged
4) Position Accuracy
A) Non DGPS (Differential GPS)
Position
5-25 meter CEP with SA off
Velocity
0.1 meters/second, with SA off
Time
1 microsecond synchronized GPS time
B) DGPS (Differential GPS)
Position
1 to 5 meter, typical
Velocity
0.05 meters/second, typical
5) Dynamic Conditions:
Altitude
18,000 meters (60,000 feet) max
Velocity
515 meters / second (1000 knots) max
Acceleration 4 G, max
Jerk
20 meters/second3, max
1.3.5 Interfaces
1) Dual channel RS-232 level, with user selectable baud rate (4800-Default, 9600, 19200, 38400).
2) NMEA 0183 Version 2.2 ASCII output (GPGGA, GPGLL, GPGSA, GPGSV, GPRMC, GPVTG).
3) Real-time Differential Correction input (RTCM SC-104 message types 1, 5 and 9).
4) SiRF protocol.
2. Operational characteristics
2.1 Initialization
As soon as the initial self-test is complete, the GPS-6021-X6 begins the process of satellite
acquisition and
tracking automatically. Under normal circumstances, it takes approximately 45 seconds to
achieve a position fix, 38 seconds if ephemeris data is known. After a position fix has been
calculated, information about valid position, velocity and time is transmitted over the output
channel.
The GPS-6021-X6 utilizes initial data, such as last stored position, date, time and satellite
orbital data, to
achieve maximum acquisition performance. If significant inaccuracy exists in the initial data, or
the orbital data is obsolete, it may take more time to achieve a navigation solution. The GPS6021-X6 Auto-locate feature is capable of automatically determining a navigation solution
without intervention from the host system. However, acquisition performance can be improved
when the host system initializes the GPS-6021-X6 in the following situation:
1) Moving further than 1,500 kilometers.
2) Failure of data storage due to the inactive internal memory battery.
2.2 Navigation
After the acquisition process is complete, the GPS-6021-X6 sends valid navigation information
over output
channels. These data include:
1) Latitude/longitude/altitude
2) Velocity
3) Date/time
4) Error estimates
5) Satellite and receiver status
The GPS-6021-X6 sets the default of auto-searching for real-time differential corrections in
RTCM SC-104
standard format, with the message types 1, 5, or 9. It accomplishes the satellite data to
generate a differential (DGPS) solution. The host system, at its option, may also command the
GPS-6021-X6 to output a position whenever a differential solution is available.
3. Hardware interface
3.1 Dimension
Size: 83.0(H) x 47.5(W) x 14.5(D) (mm)
3.27"(H) x 1.87"(W) x 0.57"(D).
3.2 Hardware Interface
The GPS-6021-X6 includes an antenna in a unique style gadget. Simply put it into a CF card
slot or
insert it into PCMCIA slot through a PCMCIA adapter of any type of PC with Windows OS. The
interface is
through a standard 50-pin PCMCIA connector with RS-232 level.
.3 Connector
1) Standard 50-pin CF female connector.
2) Optional active antenna female connector.
3.3.1 Function definition of CF card connector
Please download detail at http://compactflash.org/specdl1.htm
3.4 Accessories
3.4.1 Active Antenna
A-10302-M Active Antenna with 2 meter 180°° MMCX connector
A-10305-M Active Antenna with 5 meter 180°° MMCX connector
4. PCMCA Installation File
4.1 System Requirements
IBM, Pentium or other compatible PC, Windows 98/Me/2000.
4.2 Installation
1. Turn your PC.
2. Your PC will show new device found.
3. Indicate to the direction you store GPS-6021-X6.inf file.
4. Click “Yes”. Your PC will installation the file automatically.
Note: 1// The GPS-6021-X6.inf installation file is needed when a PCMCIA adapter used.
2// PDA does not need to install any extra file.
Appendix A Software Interface
The GPS-6021-X6 interface protocol is based on the National Marine Electronics Association's
NMEA
0183 ASCⅡ
Ⅱ interface specification, which is defined in NMEA 0183, Version 2.2 and the Radio
Technical
Commission for Maritime Services (RTCM Recommended Standards For Differential Navstar
GPS Service, Version 2.1, RTCM Special Committee No.104).
A.1 NMEA Transmitted Messages
The GPS-6021-X6 supported by SiRF Technology Inc. also outputs data in NMEA-0183 format
as defined
by the National Marine Electronics Association (NMEA), Standard.
The default communication parameters for NMEA output are 4800 baud, 8 data bits, stop bit,
and no parity.
A.1.1 Global Positioning System Fix Data (GGA)
Table A-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
A.1.2 Geographic Position with Latitude/Longitude (GLL)
Table A-4 contains the values for the following example:
$GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C
A.1.3 GNSS DOP and Active Satellites (GSA)
Table A-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
A.1.4 GNSS Satellites in View (GSV)
Table A-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
NOTE: Items <4>,<5>,<6> and <7> repeat for each satellite in view to a maximum of four (4)
satellites per
sentence. Additional satellites in view information must be sent in subsequent sentences.
These fields will be
null if unused.
A.1.5 Recommended Minimum Specific GNSS Data (RMC)
Table A-9 contains the values for the following example:
$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10
(1) SiRF Technology Inc. does not support magnetic declination. All “course over ground” data
are
geodetic WGS84 directions.
A.1.6 Course Over Ground and Ground Speed
Table A-10 contains the values for the following example:
$GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E
(1) SiRF Technology Inc. does not support magnetic declination. All “course over ground” data
are
geodetic WGS84 directions.
A.2 RTCM Received Data
The default communication parameters for DGPS Input are 9600 baud, 8 data bits, stop bit, and
no parity.
Position accuracy of less than 5 meters can be achieved with the GPS-6021-X6 by using
Differential GPS
(DGPS) real-time pseudo-range correction data in RTCM SC-104 format, with message types 1,
5, or 9. As
using DGPS receiver with different communication parameters, GPS-6021-X6 may decode the
data correctly to
generate accurate messages and save them in battery-back SRAM for later computing.
Appendix B Earth Datums & Output Setting
B.1 Earth Datums
The GPS-6021-X6 is built in earth datum with WGS84.
B.2 Setting
B.2.1 Manufacturing Default
Datum: WGS84.
Baud Rate: 4800.
Output: GGA, GSA, GSV, RMC.
B.2.2 Baud Rate and Output Sentences Setting
B.2.2.1 By SiRFdemo Program
1// Connect your GPS-6021-X6 to PC (through PCMCIA adapter)
2// Execute SiRFdemo.exe (Program is in the CD)
3// When “Data Source Setup” shows, select the port (COM 1, 2 or 3….) you used, click “OK”.
4// Click “Action”, select “Open Data Source”, Then you will see lots of sentences shows. All
the sentences start with $GPxxxx. This is NMEA protocol. If you do not see these
sentences, please click “View”, “Select Message”, then click “Development”. The message
will appear. If it still shows nothing, then continue below steps.
5// There is a screen “Selection of Target Receiver Software” might appear, please select
“SiRFstar II”.
6// Click “Action”, Select “Switch to SiRF Protocol”. Then you will see SiRF binary and the
sentences start with #Time, shows every 4 lines and you can not see the sentences start
with $GP. These sentences are for setting or viewing the GPS receiver’s performance. If
your software is using standard NMEA protocol, please do the following:
7// Click “Action”, Select “Switch to NMEA Protocol”. You will see GGA, GSV, GSA and RMC in
black and the Baud Rate is 4800. These are the default we put inside the receiver. Please
click “OK”. Then you can use it as a standard GPS receiver. If your software uses different
sentence, please choose the sentences you need.
After above actions, the new setting will be kept in SRAM. If no power supplied to GPS-6021-X6
for more
than 30 days, user must re-set again when power on.
B.2.2.2 By other SiRF based demo program . Please watch out the Internet.
Appendix C Ordering Information
C.1 Product Options
C.1.1 Standard Package
GPS-6021-X6: CF GPS with main unit, CD, Warranty card and quick reference.
C.1.2 Optional Accessories
C.1.2.1 Active Antenna
A-10302-M Active Antenna with 2 meter 180°° MMCX connector
A-10305-M Active Antenna with 5 meter 180°° MMCX connector
C.1.2.1 PDA Holder