G-Mouse GPS Receiver
G-Mouse MR
User Manual
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
Usage Notice
Please read before you start to use the GPS receiver:
Ø
GPS(Global Position System) is found and operated by US Department of defense. The
Organization is responsible for accuracy and maintenance of the system with full authority. Any
change that is made by the organization will affect accuracy and function of GPS.
For your driving security, we strongly suggest that you do not operate the device during driving.
When satellite is navigating, if you are inside a building, tunnel or near huge blocks, it will affect
GPS satellite signal receiving. At this time, this device probably dose not have positioning
capability.
Ø
Ø
Ø
Ø
If you have a speed alarm in your car, the signal receiving of this device will be interfered. If this
situation happens, please stop using your speed alarm.
The receiver operating temperature is located between-10℃~70℃.For safety and lifetime of
Li-ion battery usage, do not place this device over two hours with overheated environment.
0. Quick Start
0.1 Check the package
A. Standard pack
G-Mouse MR (GPS receiver, including magnet pad), disc and quick use manual
B. Optional accessory
To collocate with different kinds of computers and handset devices, G-Mouse MR GPS receivers
you purchase may include different accessories as below:
1. Computer connector
2. Software (navigation or special software)
3. Other software/hardware
0.2 Check the connector
A.PS/2 to USB adapter. Before connecting,
please refer to Chapter 4: Install the driver
from the CD-Rom.
PS/2 to USB
0.3 Connect to your equipment
A. Connect the G-Mouse MR to your equipment
Page 2
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
B. Put G-Mouse MR in a appropriate place to receive the best GPS satellite signal.
C. Turn on your equipment (or switch the handhold device on)
D. Your G-Mouse MR will start to provide you GPS satellite positioning function.
1. Introduction
1.1 Introduction
G-Mouse MR is a total solution GPS receiver (G-MR instead below), designed based on most
high sensitivity MediaTek kernel architecture. 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 or TTL and saves critical satellite data by built–in backup memory. With
low power consumption, the G-Mouse tracks up to 32 satellites at a time, re-acquires satellite signals in
1 sec and updates position data every second. 4 power-saving mode allows the unit operates with ultra
low power request.
1.2 Features
G-MR provides a host of features that make it easy for integration and use.
1. Use the most advantage GPS module (MediaTek), the module got high performance CPU
inside(ARM CPU), allow users to design different applications, store in the module, to provide the
most economic solution for anybody.
2. High performance receiver tracks up to 32 satellites while providing first fast fix and low power
consumption.
3. Compact design ideal for applications with minimal space.
4. A rechargeable battery sustains internal clock and memory. The battery is recharged during normal
operation.
5. Auto switch-able power saving mode 1~4, reduce your power exhaust.
6. User initialization is not required.
7. Dual communication channels and user selectable baud rates allow maximum interface capability
and flexibility.
8. Optional communication levels, RS-232 and TTL meet ordinary application and new fashions of
connecting PDA with TTL or RS-232 output.
9. FLASH based program memory: New software revisions upgradeable through serial interface.
10. LED display status: The LED provides users visible positioning status. LED "Blinking" when
power connected and "On" when G-Mouse got positioned.
11. Industry level water proof design for all weather.
Page 3
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
1.3 Technical Specification
1.3.1 Dimension
Single construction integrated antenna/receiver.
Size:60.0 (L) x 54.0 (W) x 27.0 (H) (mm)。
2.36 (L) x 2.13 (W) x 1.06 (H) (Inch)。
1.3.2 Environmental Characteristics
1) Operating temperature: -10oC~70oC (internal)。
2) Storage temperature: -40oC ~85oC
1.3.3 Electrical Characteristics
1) Input voltage: +4.75~+5.5V DC
1.3.4 Performance
1) Tracks up to 32 satellites.
2) Update rate: 1Hz.
3) Acquisition time (average)
Hot start: 1 sec
Warm start: 36 sec
Cold start: 37 sec
4) Position accuracy:
A) None DGPS (Differential GPS)
Position: < 3m CEP (50%) without SA(horizontal)
Time: 0.1 ms synchronized GPS time
B) DGPS (Differential GPS)
Position: <2.5m
5) Dynamic Conditions:
Altitude: 18,000 m (60,000 feet)max
Velocity: 515 m/sec (700 knots)
Acceleration: 4G max
1.3.5 Interfaces
1) Dual channel RS-232 or TTL compatible level, with user selectable baud rate (4800, 9600-Default,
19200, 38400)
2) NMEA 0183 Version 3.01 ASCII output (Default：GGA,GSA,GSV,RMC,VTG,CHN).
2. Operational Characteristics
2.1 Initialization Setup
After the initial self-test is complete, the G-MR will begin the process of satellite acquisition and
tracking. The acquisition process is fully automatic and, under normal circumstances, will take
approximately 37 seconds to achieve a position fix (36 seconds if ephemeris data is know). After a
position fix has been calculated, valid position and time information will be transmitted over the output
channel(s).
The G-MR utilizes initial data such as last stored position, data and time as well as satellite orbital
data to achieve maximum acquisition performance. If significant inaccuracy exists in the initial data, or
if the orbital data is obsolete, it may take a long time to achieve a navigation solution. The G-MR
Auto-locate feature is capable of automatically determining a navigation solution without intervention
from the host system. However, acquisition performance can be improved if the host system initialized
the G-mouse following the occurrence of one or more of the following events:
Page 4
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
1) The GPS receiver is not in use for more than 3 months or transportation over distances further than
500 kilometers.
2) Power off the PDA main power without system standby power.
2.2 Navigation
After the acquisition process is complete, the G-MR will begin sending valid navigation information
over its output channels. These data include:
1) Latitude/longitude/altitude
2) Velocity
3) Date/time
4) Error estimates
5) Satellite and receiver status
3、Hardware Specification
3.1 Outline
Size: 60.0 (L) x 54.0 (W) x 27.0 (H) (mm)。
2.36 (L) x 2.13 (W) x 1.06 (H) (Inch)。
3.2 Hardware Interface
The G-MR intelligent satellite receiver, includes GPS receiver and an antenna in a unique style
gadget. Simply connect PS-2 male connector to one of the accessories linking to your notebook PC,
PDA or other devices. Optional color, input voltage and output connector are listed and described
bellow:
G-Mouse MR
PS/2 to USB adapter
PS：The picture only supplies the reference, please depend on the actual product.
Page 5
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
3.3 Output Connector
Cable length: 2 meter, Connector: PS/2 female.
Function definition of PS-2 female composite connectors.
Signal
RS-232+TTL
TX(RS232)
+5V DC
Tx(TTL)
Ground
Rx(TTL)
RX(RS232)
6
5
Pin
RS-232
Tx
+5V DC
NC
Ground
DGPS in
Rx
1
2
3
4
5
6
4
1
2
3
3.4 Accessories
In order to connect with different system, we provides several kinds of connectors to choose as
following:
3.4.1 PS/2 connector definition:
5
6
Pin Signal Name
1
2,3,5,6
4
+5V
N.C
Ground
1
4
N.C. :Not connection
3
2
3.4.2 USB connector
The USB type：A type
4
Pin Signal Name
1
2
3
4
+5V
D+
D-
1
Ground
3.4.3 Magnetic plate (Concurrently fixed stand)
The magnetic plate, a standard equipment, has been put in the G-MR base on delivery, can be put
on the car roof, the boat roof or the other brace and face to the sky.
4、G-Mouse USB Adapter Driver
4.1 System requirement
PC: IBM, Pentium or above or compatible PC。
Memory: 16MB or above。
Operation system: Windows 98/Me/2000/2000XP
Display card: VGA compatible.
Page 6
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
4.2 Install USB Driver
1) Insert the CD-ROM: [GPS Driver&Manual]
into the CD drive. Please make sure that the
auto-play function is enabled!
2) Please follow the screen guide and click
[Install/Remove G-Mouse Device Driver]
3) Please follow the screen to install the USB
driver. Maybe it is necessary to reboot PC,
please reboot as it says.
4) Insert the G-MR USB connector into any
empty USB slot, now your PC will
recognize the USB device automatically.
You may use the G-MR freely now.
4.3 Verify the Driver Installation
Please identify the COM port ID after you install the G-MR USB driver:
1) Click [Start], [Setup], and click the [Control Panel].
Page 7
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
2) While the windows of [Control Panel] shows up,
double click the [System], [Hardware] and click the
button [Device Manager]. Expend the tree node
[Ports(COM&LPT)], you should see the item
[Prolific USB-to Serial Comm Port (COM#)]. If so,
it means you can use G-MR correctly now.
3) The “#” mark means the COM port ID simulated by
the USB adapter. Most of the GPS navigate software
use COM1 as default settings. You should change it
to the corresponding port ID mapped by the USB
adapter, and G-Mouse can report GPS message
correctly.
5. Warranty
The G-MR is warranted to be free from defect in materials and functions for one year from the
date of purchase. Any failure of this product within the period under normal conditions will be replaced
at no charge to the customers.
This warranty does not cover failures due to abuse, misuse, accident, or unauthorized alteration or
repairs, inappropriate disassemble.
6. Trouble Shooting Guide
6.1 Satellite Signal Problem
It is normal if you found that the GPS satellite signal very low or absolute missing:
Ø
Ø
While you are in a tunnel, GPS signal isolated.
There is something cover above, GPS signal isolated.
Page 8
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
Ø
Ø
Ø
Inside of the building, GPS signal isolated.
Buildings near by, GPS signal interfered.
Inside the forest, lots of covers above, GPS signal level down.
n
n
If you use G-MR inside the car, some sun-control film will makes the GPS signal low or lost.
GPS satellite is owned by America army, sometimes they will tune-down the accuracy by
some reason. In such cases, the GPS position may not fixed exactly.
6.2 Position Fixing Problem
The position fix problem below does not mean the G-MR GPS receiver ’s ma lfunction:
Ø
You are driving on the freeway, but the GPS navigation
software shows you are on the road beside. Or the opposite
situation.
Ø
Ø
You are driving on a grid like lane, it is possible to show
your car on an incorrect lane, if these 2 lane very near.
If you translate the GPS receiver inside somewhere with no
satellite signal, the GPS position may stay at the position
before.
Page 9
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
6.3 GPS Not Fix Problems
If you see [GPS not Fix] message on the screen after you enable the G-MR GPS receiver, please
consider the possibility below:
n
n
Please wait few minutes more. GPS position fix may cost several minutes.
Please make sure that you put the G-MR GPS receiver at a proper place. Some sun-control
film for car may cutoff the satellite signal. You may replace it and try again.
Please make sure that you are not inside of somewhere the GPS signal shaded. Please reference the
chapter [Satellite Signal Problem] about this.
6.4 G-Mouse Driver Confliction Problem
If you notice that the PC’s mouse cursor is in panic, or you just can’t find GPS device in your GPS
navigation software, please follow the steps below to check:
1) Please disconnect the G-MR and the adapter in
your package, but leave the adapter connected
to your USB slot.
2) Click [Start], [Setup], and click the [Control
Panel].
3) After the window of [Control Panel] shows up,
double click [System], [Hardware], and click
[Device Manager]. Expand the tree node [Ports
(COM & LPT)], see if something like
[Microsoft Serial BallPoint] or [Microsoft
Serial Mouse] there.
4) Right click on it and select [Disable].
5) Re-connect the G-MR and your accessory, the
G-MR will back to work normally now.
Page 10
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
Appendix A Software Protocol
The protocolof G-MR is designed base on NMEA(National Marine Electronics Association) 0183
ASCII format. The full protocol is defined in “NMEA 0183, Version 3.01”.
A.1、NMEA Transmitted Message
G-MR GPS receiver use MediaTekas the core, and output NMEA-0183 standard format message.
The default communication parameters for NMEA output are 9600 baud, 8 data bits, stop bit, and no
parity.
Table A-1 NMEA-0183 Output Messages
NMEA Sentence
GPGGA
Description
Global positioning system fixed data
Geographic position latitude \ longitude
GNSS DOP and active satellites
GNSS satellites in view
GPGLL
GPGSA
GPGSV
GPRMC
GPVTG
GPZDA
Recommended minimum specific GNSS data
Course over ground and ground speed
Data and Time
A.1.1 Global Positioning System Fix Data (GGA)
Samples:
$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18
Table A-2 GGA Data Format
Name
Message ID
UTC Time
Description Units
$GPGGA
161229.487
Description
GGA protocol header
Hhmmss.sss
Latitude
3723.2475
ddmm.mmmm
N/S Indicator
Longitude
N
N = north or S = south
dddmm.mmmm
12158.3416
E/W Indicator
Position Fix Indicator
Satellites Used
HDOP
W
1
07
1.0
E = east or W = west
See Table4-3
Range 0 to 12
Horizontal Dilution of Precision
MSLAltitude
Units
Geoid Separation
Units
9.0
M
Meters
Meters
Meters
Meters
M
Age of Diff. Corr.
Diff. Ref. Station ID
Checksum
Second Null fields when DGPS is not used
0000
*18
Table A-3 Position Fix Indicator
Value
Description
0 Fix not available or invalid
GPS SPS Mode fix valid
0
1
2
Differential GPS, SPS Mode fix valid
Page 11
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
Value
Description
3
GPS PPS Mode fix valid
A.1.2 Geographic Position - Latitude/Longitude (GLL)
Samples:
$GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C
Table 1-4 GLL Data Format
Name
Example Units Description
Message ID
$GPGLL
GLL protocol header
Latitude
3723.2475
dd mm.mmmm
N/S Indicator
Longitude
E/W Indicator
UTC Position
Status
N
N = north or S = south
ddd mm.mmmm
E = east or W = west
hh mm ss.sss
12158.3416
W
161229.487
A
A = data valid or V = data not valid
Checksum
*2C
A.1.3 GNSS DOP and Active Satellites (GSA)
Samples:
$GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33
Table A-5 GSA Data Format
Name
Message ID
Mode 1
Example Units
$GPGSA
A
3
Description
GSA protocol header
See Table4-6
Mode 2
See Table4-7
Satellite Used *1 07
Satellite Used *1
… ..
SV on Channel 1
SV on Channel 2
… ...
Satellite Used *1
SV on Channel N
PDOP
HDOP
VDOP
Checksum
1.8
1.0
1.5
*33
Position Dilution of Precision
Horizontal Dilution of Precision
Vertical Dilution of Precision
*1 Satellite used in solution.
Table A-6 Mode 1
Value
Description
M
3
Manual – forced to operate in 2D or 3D mode
Automatic – allowed to automatically switch 2D/3D
Table A-6 Mode 2
Value
Description
1
2
3
Fix Not Available
2D
3D
A.1.4 GNSS Satellites In View (GSV)
Samples:
Page 12
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
$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
Table A-8 GSV Data Format
Name
Message ID
Number of
Example Units
$GPGSV
Description
GSV protocol header
2
Range 1 to 3
Messages1
Message Number 1 1
Satellites in View 07
Range 1 to 3
Range 1 to 12
Satellite ID
Elevation
Azimuth
SNR (C/No)
… ..
Satellite ID
Elevation
Azimuth
SNR (C/No)
Checksum
07
79
048
42
……
27
27
138
42
*71
Channel 1 (Range 1 to 32)
degreesChannel 1 (Maximum 90)
degreesChannel 1 (True, Range 0 to 359)
dBHz Range 0 to 99, null when not tracking
Channel 4 (Range 1 to 32)
degreesChannel 4 (Maximum 90)
degreesChannel 4 (True, Range 0 to 359)
dBHz Range 0 to 99, null when not tracking
NOTE: Item <4>,<5>,<6> and <7> repeat for each satellite in view to a maximum of four (4)
satellite per sentence. Additional satellites in view information must be sent in sentences. These
fields will be null if unused.
A.1.5 Recommended Minimum Specific GNSS Data (RMC)
Samples:
$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10
Table A-9 RMC Data Format
Name
Message ID
Example
$GPRMC
161229.487
A
Units
Description
RMC protocol header
Hh mm ss.sss
UTC Position
Status
A = data valid or V = data not valid
Latitude
3723.2475
N
12158.3416
W
dd mm.mmmm
N = north or S = south
ddd mm.mmmm
N/S Indicator
Longitude
E/W Indicator
E = east or W = west
Speed Over Ground 0.13
Course Over Ground 309.62
knots
degrees True
dd mm yy
Date
120598
Magnetic Variation1 02.6
degrees
E/W Indicator
Checksum
W
*10
E = east or W = west
A.1.6 Course Over Ground and Ground Speed (VTG)
Samples:
$GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E
Table A-10 VTG Data Format
Name
Example
Unit
Description
Message ID $GPVTG
VTG protocol header
Page 13
Download from Www.Somanuals.com. All Manuals Search And Download.
G-Mouse GPS Receiver User Manual
Course
Reference
Course
Reference
Speed
309.62
Degrees Measured heading
T
Degrees Measured heading
Magnetic*1
M
0.13
N
Knots
Measured horizontal speed
Units
Speed
Units
0.2
K
Km/hr Measured horizontal speed
Kilometer per hour
Checksum
*6E
Note *1:All "course over ground" data are geodetic WGS84.
A.1.7 Time & Date (ZDA)
Samples:
$GPZDA,114523.62,12,04,2001,10,34*6E
Table 1-11 ZDAData Format
Name
Message ID
Hour, Min, Sec, Sub Sec 114523.62
Example Units
$GPZDA
Description
ZDA protocol header
Hhmmss.ss
Day
Month
Year
12
4
2001
10
34
day in UTC, 01 to 31
month in UTC, 01 to 12
year in UTC
local zone hours, +/- 13 hours
local zone minutes, 0 to +59
Local Zone Hours
Local Zone Minutes
Checksum
*6E
Appendix B Coordinate Systemand Output Settings
B.1 Coordinate System
World standard coordinate system WGS84 is builds in.
B.2 Output Settings
Coordinate System: WGS84。
Baud rate: 9600
Output message: GGA, GSA, GSV, RMC, VTG,CHN
Page 14
Download from Www.Somanuals.com. All Manuals Search And Download.
|