G-Mouse vMR_GMR75_ user`s guide_V03_Eng
Contents
1. S gnal RS 232 TTL RS232 TX RS232 Tx a Goma Ground RX RS232 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 N C Not connection 3 4 2 USB connector The USB typed A type 3 Db 3 4 3 Magnetic plate Concurrently fixed stand The magnetic plate a standard equipment has been put in the GMR75 base on delivery can be put on the car roof the boat roof or the other brace and face to the sky 4 GMR75 USB Adapter Drive 4 1 System requirement PC IBM Pentium or above or compatible PCT Memory 16MB or above Operation system Windows 98 Me 2000 2000XP Display card VGA compatible Page 6 GMR75 GPS Receiver User Manual 4 2 Install USB Driver 1 Insert the CD ROM GPS Driverg Manual into the CD drive Please make sure that the auto play function is enabled pi El Ce I ELM WE EL A WO mR E E Fi 2 Please follow the screen guide and click f Install Remove GMR75 Device Driver en IL OLIM ie FC Pees LIED ne MU dr e Ph E a i aiia 3 Please follow the screen to install the USB ae MO I7 driver Maybe it is necessary to reboot PC please reboot as it says EN META Timid A 4 Insert the GMR75 USB connector into any wet empty USB slot now your PC will recognize the USB device automatically LEM You may use the2. 32 satellites 2 Update rate 1 Hz 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 lt 3m CEP 50 without SA horizontal Time 0 1 ms synchronized GPS time B DGPS Differential GPS Position lt 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 VTGCHN 2 Operational Characteristic 2 1 Initialization Setup After the initial self test is complete the GMR75 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 GMR75 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 n the initial data or if the orbital data is obsolete it may take a long time to achieve a navigation solution The GMR75 Auto locate feature is capable of automatically d
3. GMR75 freely now AS 4 3 Verify the Driver Installation Please identify the COM port ID after you install the GMR75 USB driver 1 Click Start Setup and click the Control Panel d S DARRERE TATIE RRA DEAT Page 7 GMR75 GPS Receiver User Manual BH o NELH dedi am Se DEE qa Gr ETa HM HTH m racc Taur 2 While the windows of Control Panel shows up s uns double click the System Hardware and click the ene button Device Manager Expend the tree node 5 summer Ports COMS LPTD you should see the item BEE A Prolific USB to Serial Comm Port COM If so L5 sess it means you can use GMR75 correctly now lt 3 The mark means the COM port ID simulated by the USB adapter Most of the GPS navigate software use COMI as default settings You should change it to the corresponding port ID mapped by the USB adapter and GMR75 can report GPS message correctly The GMR75 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 gt While you
4. 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 Industry level water proof design for all weather Page 3 GMR75 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 10 C 70 C internal 2 Storage temperature 40 C 85 C 1 3 3 Electrical Characteristics 1 Input voltage 4 75 5 5V DC 1 3 4 Performance 1 Tracks up to
5. 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 atellites in View atellite ID levation Azimuth NR C No atellite ID levation Azimuth NR C No Checksum Messages1 Azimuth be o Azimuth Checksum T Units Description GPGSV GSV protocol header EN A Chamnel4 Range 1to32 __________ EN Range 1to3 O EN ERBEN NOTE Item lt 4 gt lt 5 gt lt 6 gt 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 Message ID GPRMC RMC protocol header UTC Position 161229 487 Hhmm ss sss A data valid or V data not valid Latitude 3723 2475 dd mm mmmm N O N S Indicator N ddmmmmmm IN north or S south Longitude 11215839416 dddmm mmmm EW Indicator W jE eastoW west Speed Over Ground 0 13 knos Date 120598 ddmmyy Magnetic Variation 026 degres 1 1 1 1 Wo E W Indicator W JE east or W west LS Checksum io A 1 6 Course Over Ground and Ground Speed VTG Samples G
6. 5 will back to work normally now Page 10 GMR75 GPS Receiver User Manual A ppendix A Software Protoco The protocolof GMR75 is designed base on NMEA National Marine Electronics Association 0183 ASCH format The full protocol is defined in NMEA 0183 Version 3 01 A 1 NMEA Transmitted Message GMR75 GPS receiver use MediaTek as 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 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 Description Units ipti Message ID GPGGA GGA protocol header DENN d l TC Time 161229 487 atitude 3723 2475 ddmm mmmm ll JN nothorS souh dddmmmmmm E eastorW west_______ JSeeTabe43 NEN NEN Meters S Indicator N ongitude 12158 3416 W Indicator W osition Fix Indicator 1 atellites Used 07 0 Range 0 to 12 DOP 1 Horizontal Dilution of Precision MSL Altitude Meters nits M___ Meters 0 00 0 0 EEE eoid Separation nits M ge of Diff Corr Second Null fields when DGPS is not used iff Ref Station ID 0000 MEN EEE hecksum A jo oo ooo Table A 3 Position Fix Indicator 0 Fix not available or invalid 1 GPS SPS Mode fix valid Page 11 GMR75 GP
7. G Mouse GPS Receiver GMR75 User Manual GMR75 GPS Receiver User Manual Table of Contents Usage rte ne es ee 2 IS A T O 2 DALSCHECK the pac have ee een dd 2 02 Check the connection a NEL A Coes RE 2 03 Connectionto your equipe NG a ee asu 2 E EO AUS eere EE E daa aa ba tid 3 ET OGUE O i S E d oed tatto i timme ds es ste aatetsch daha haa tala 3 I2 21 AE Are O O ea E eu dimos toate de A coelitus D EE es 3 3 Technical Special on area ae es 4 2 Operational Characters iGS oe us dese Ebo dti ood IRE o pbi saddle subi uat ES iud 4 2 1 HitttaltzattoOn Se aee paese tue bU Eds A does 4 2 2 Nay CAI OM eye een RENTE 5 D Hardware Spears 5 om ESI LC 5 3 2 onnectioD DES ETIO E ois DEop oue rite A ais 5 3 3 OULDUL COME obtained ee 6 SINCE SEMIS E ERE TC TE TL LE m S SLUT 6 A OMR O USB DIC ua a 7 ZI Svstem decuibetmelib sooo aaa E N a iced bd Midi 7 SN tsm ponts tion 7 4 3 Verily the driver nstallat on zz s il 8 SeN a ET 8 6 Trouble Shooting Guides cede sie cee ansehe 8 6 1 Satellite Sinaloa 8 6 2 POSTOR TINE POL ii ee ES AAA AA adds 9 037 CES NOU PIOoBE Soria eo A a ie Ure at 10 6 4 GMR75 driver confliction problem ssssesssseeesssesesseenensneneneeenenennnn 10 APpendix A SOL Wwate Protocol in char Dalias 11 As NMEA tansmiled DE SER ner ne iu era leder 11 Appendix B Coordinate System and Output SettidgsS ooooococconncccnncnnnononnnrnrrcn cnn nnn rra 14 b C oordie syste Meore aie una a Re Aia 15 BZ Output
8. PVTG 309 62 T M 0 13 N 0 2 K 6E Table A 10 VTG Data Format Name Example Unit Description Page 13 GMR75 GPS Receiver User Manual Message ID GPVTG VTGprotocolheader Reference T o ooo Couse Degrees Measured heading Reference M Magnetic Unts N A JJ 9 Units K d Kilometerperhour Checksum E Note All course over ground data are geodetic WGS84 A 1 7 Time amp Date ZDA Samples GPZDA 114523 62 12 04 2001 10 34 6E Table 1 11 ZDA Data Format Name Example Units Description MessagelD GPZDA ZDAprotocolheader______ Hour Min Sec Sub Sec 114523 62 Hhmmss ss la Day 12 fdayin UTC O1to 31 3 Month 4 monthinUTC Oitot2_ Yer 2001 lyearinUTC_ ______ Local Zone Hours 10 llocalzone hours 13 hours _ Local Zone Minutes 34 localzone minutes Oto 59 BEE 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 VIG CHN Page 14
9. S Receiver User Manual Value Description Differential GPS SPS Mode fix valid 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 ae up Rue 00 Latitude 3723 2475 dd mm mmmm N S Indicator N N northorS south__ Longitude 12158 3416 dddmm mmmm E WIndicator W E eastorW west UTC Position 161229 487 hhmmssss ud ER A data valid or V data not valid ME S S S S S BI 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 Tabb A 5 GSA Data Format Name Example Units Description Message ID____ GPGSA GSAprotocolheader___ Modei A 9 SeeTable46 X Moe2 3 SeeTable4 7 Satelite Used 1 07 SVonChameli EEE EE 1 Satellite Used 1 SV on Channel 2 PEPA tere S 1 C SEE Satelite Used t HDOP 10 Horizontal Dilution of Precision _ 1 5 __ Vertical Dilution of Precision Checksum ja S Satellite used 1n solution Table A 6 Mode 1 Manual forced to operate in 2D or 3D mode 3 Automatic allowed to automatically switch 2D 3D Table A 6 Mode 2 Fix Not Available A 1 4 GNSS Satellites In View GSV Page 12 Samples GMR75 GPS Receiver User Manual GPGSV 2 1 07 07 79
10. are in a tunnel GPS signal isolated gt There is something cover above GPS signal isolated Page 8 GMR75 GPS Receiver User Manual gt Inside of the building GPS signal isolated gt Buildings near by GPS signal interfered Inside the forest lots of covers above GPS signal level down Bg if you use GMR75 inside the car some sun control film will makes the GPS signal low or lost B 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 GMR75 GPS receiver s malfunction You are driving on the freeway but the GPS navigation software shows you are on the road beside Or the opposite situation 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 GMR75 GPS Receiver User Manual 6 3 GPS Not Fix Problems If you see GPS not Fix message on the screen after you enable the GMR75 GPS receiver please consider the possibility below B Please wait few minutes more GPS position fix may cost several minutes B Please make sure that you put the GMR75 GPS receiver at a proper place Some sun control film for car may cutoff the satellite sig
11. etermining a navigation solution without intervention from the host system However acquisition performance can be improved if the host system initialized the GMR75 following the occurrence of one or more of the following events Page 4 GMR75 GPS Receiver User Manual 1 The GPS receiver 1s 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 GMR75 will begin sending valid navigation information over 1ts output channels These data include 1 Latitude longitude altitude 2 Velocity 3 Date time 4 Error estimates 5 Satellite and receiver status 3 Hardware Specificatio 3 1 Outline Size 60 0 L x 54 0 W x 27 0 H mmy 2 36 L x 2 13 W x 1 06 H Inch 3 2 Hardware Interface The GMR75 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 PS 2 to USB adapter PS The picture only supplies the reference please depend on the actual product Page 5 GMR75 GPS Receiver User Manual 3 3 Output Connector Cable length 2 meter Connector PS 2 female Function definition of PS 2 female composite connectors
12. nal 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 GMR75 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 GMR75 and the adapter in your package but leave the adapter connected to your USB slot re WD er ee E T a BI 2 mic MS 2 Click Start Setup and click the Control Panel BM O Ju ME Hm wm HL mmu PETIT sh Ter NES n LE TEE Mira SmE HME E aui FE a dedi pde A TURCA x PARAE mi RH 3 After the window of Control Panel shows up double click System Hardware and click Device Manager Expand the tree node Ports COM amp LPT see if something like Microsoft Serial BallPoint or Microsoft Serial Mouse there A qx ME PERE 9 der HELD rou EIS Emb PEETA zy MAE ed La CHEF E EHRT E ma EEE LH E t d a LE H B LFT ECT ADA LITA ESTE i PROTECT Edi Filii NWSb k i el SA EEE di clas Wem RE ner Legiscko zcamnpatibh Elem FL EES s NE urs EJ HU pono MPA m TT mm 4 Right click on it and select Disable 5 Re connect the GMR75 and your accessory the GMR7
13. seines aus BEE ee BIS a a LLLA IP N 15 Appendix Order IOMA ad entre 15 CGMRT7SPacKases ne nen tere a dee 15 EN SI ee Eee 15 Suo IUS HEIC ru an een sen REN res 15 Page 1 GMR75 GPS Receiver User Manual Usage Notice Please read before you start to use the GPS receiver gt 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 s made by the organization will affect accuracy and function of GPS gt 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 gt 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 gt The receiver operating temperature is located between 10 C 70 C 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 GMR75 GPS receiver including magnet pad disc and quick use manual B Optional accessory To collocate with different kinds of computers and handset devices GMR75 GPS receivers you purchase ma
14. y 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 GMR75 to your equipment r GMR75 GPS Receiver User Manual B Put GMR75 in a appropriate place to receive the best GPS satellite signal C Turn on your equipment or switch the handhold device on D Your GMR75 will start to provide you GPS satellite positioning function 1 Introduction 1 1 Introduction GMR75 is a total solution GPS receiver GMR75 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 GMR75 tracks up to 32 satellites at a time re acquires satellite signals in l sec and updates position data every second 4 power saving mode allows the unit operates with ultra low power request 1 2 Features GMR75 provides a host of features that make it easy for integration and use 1
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