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1. Startup Time lt 10sec hot start lt 35sec warm start lt 45sec cold start Reacquisition 1s Sensitivity Update Rate 137dBm acquisition 145dBm tracking 1Hz Dynamics 4G 39 2m sec2 Operational Limits Altitude lt 18 000m or velocity lt 515m s COCOM limit either may be exceeded but not both Serial Interface LVTTL level and RS 232 level Protocol NMEA 0183 V3 01 GPGGA GPGLL GPGSA GPGSYV GPRMC GPVTG GPZDA 4800 baud 8 1 Datum Default WGS 84 User definable Interface Connector Two 1 0mm pitch WTB S R wafer 87213 SMT R A type connector Input Voltage Current Consumption 3 3V DC 100 3 8V 12 0V 90 110 Dimension 43mm L x 42mm W x 13mm H Weight 23 Operating Temperature 2 2 LED INDICATOR 40 C 85 C LED flashing 0 25Hz Signal Searching LED flashing 1Hz Position Fixed SECTION 3 HARDWARE INTERFACE 3 1 MECHANICAL DIMENSIONS Unit mm Top View 69 0 2 x Cable Build in patch antenna Lateral View 20 0 2 I O Cable Bottom View LED indicator 441 69 0 2 Dist 3 3 35 a Cable CPU E 13 Patch Antenna 204 Lateral View 3 2 PINOUT DESCRIPTION Serial Data Out 1 Serial Data In 1 Serial Data Out 2 Serial Data In 2 Asynchronous serial output at LVTTL level t2. 24045 ORS MESAM User Manual 2 BRAHE WA OO General description of what GPS is and how it works GPS Global Positioning System is the only system today able to show you your exact position on the Earth anytime in any weather anywhere GPS satellites 24 in all orbit at 11 000 nautical miles above the Earth They are continuously monitored by ground stations located worldwide The satellites transmit signals that can be detected by anyone with a GPS receiver Using the receiver you can determine your location with great precision The satellites are positioned so that we can receive signals from six of them nearly 100 percent of the time at any point on Earth You need that many signals to get the best position information Satellites are equipped with very precise clocks that keep accurate time to within three nanoseconds that s 0 00000000 or three billionths of a second This precision timing is important because the receiver must determine exactly how long it take s for signals to travel from each GPS satellite The receiver uses this information to calculate its position Although GPS was designed for military use many thousands of make use of it The satellites actually broadcast two signals one is only formilitary use and the ther can be used by both military and civilians Since GPS is passive you only n
3. RMC Recommended Minimum Specific GNSS Data VTG Course Over Ground and Ground Speed 17 4 1 1 The serial interface protocol is based on National Marine Electronics Association s NMEA 0183 ASCII interface specification This standard is fully define in NMEA 0188 Version 3 01 The standard may be obtained from NMEA www nmea org 4 1 2 GGA GPS FIX DATA Time position and position fix related data number of satellites in use Format GPGGA lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt M lt 10 gt M lt 11 gt lt 12 gt lt 13 gt lt CR gt lt LF gt Example 104549 04 2447 2038 12100 4990 1 06 01 7 00078 8 M 0016 3 M 5C lt CR gt lt LF gt 18 Field Example Description 1 104549 04 UTC time in hhmmss ss format 000000 00 235959 99 244 7 2038 Latitude in ddmm mmmm format Leading zeros transmitted Latitude hemisphere indicator N North S South 12100 4990 Longitude in dddmm mmmm format Leading zeros transmitted Longitude hemisphere indicator East W West Position fix quality indicator position fix unavailable 1 valid position fix SPS mode 2 valid position fix differential GPS mode 7 06 Number of satellites in use 00 12 8 01 7 Horizontal dilution of precision 00 0 99 9 9 00078 8 Antenna height above below mean sea level 9999 9 17999 9 1
4. vehicle navigation products Its 12 parallel channels and 4000 search bins provide fast satellite signal acquisition and short startup time Acquisition sensitivity of 137 and tracking sensitivity of 145dBm offers good navigation performance even in urban canyons having limited sky view Satellite based augmentation systems such WAAS and EGNOS are supported to yield improved accuracy Both the LVTTL level and RS232 level serial interface are provided on the interface connector Supply voltage of 3 3V or 3 8V 12V are supported 1 2 Features e 12 parallel channel GPS receiver e 4000 simultaneous time frequency search bins SBAS WAAS EGNOS support e 137dBm acquisition sensitivity 145dBm tracking sensitivity e lt 10 second hot start e lt 45 second cold start e 5m CEP accuracy 10 2 RECEIVER OPERATION Upon power up after initial self test has completed the HI 204E will begin satellite acquisition and tracking process Under normal open sky condition position fix can be achieved within approximately 35 seconds within 10 seconds if valid ephemeris data is already collected from recent use After receiver position has been calculated valid position velocity and time information are transmitted through the on board serial interface The receiver uses the latest stored position satellite data and current RIC time to achieve rapid GPS signal acquisition and fast TTFF
5. 0 0016 3 Geoidal height 999 9 9999 9 11 Age of DGPS data since last valid RTCM transmission in xxx format Seconds NULL when DGPS not used 12 Differential reference station ID 0000 1023 NULL when DGPS not used 13 5C Checksum Note The checksum field starts with a and consists of 2 characters representing a hex number The checksum is the exclusive OR of all characters between and 19 20 4 1 3 GLL LATITUDE AND LONGITUDE WITH TIME OF POSITION FIX AND STATUS Latitude and longitude of current position time and status Format GPGLL lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt CR gt lt LF gt Example GPGLL 2447 2073 N 12100 5022 E 104548 04 A A 65 lt CR gt lt LF gt Field Example Description 1 2447 2073 12100 5022 104548 04 Latitude in ddmm mmmm format Leading zeros transmitted Latitude hemisphere indicator North S South Longitude in dddmm mmmm format Leading zeros transmitted Longitude hemisphere indicator East West UTC time in hhmmss ss format 000000 00 235959 99 Status valid position V navigation receiver warning Mode indicator Data invalid D Differential Autonomous Estimated 8 65 Checksum 4 1 4 GSA GPS DOP AND ACTIVE SATELLITES GPS receiver operating mode satellites used for navigation and DOP values Format G
6. If the receiver is transported over a large distance across the globe cold start automatic locate sequence is invoked The first position fix may take up to 50 sec searching the sky for the GPS signal The acquisition performance can be improved significantly if the host initializes the receiver with a rough estimate of time and user position As soon as GPS signal is acquired and tracked the 204 will transmit valid navigation information through its serial interface The navigation data contains following information e Receiver position in latitude longitude and altitude lt Receiver velocity e Time DOP error magnification factor e GPS signal tracking status The 204 will perform navigation when four or more satellites are tracked When three or fewer satellites are tracked altitude hold is enabled using the last computed altitude and 2D navigation mode is entered With signal blockage or rising and setting of the satellites where a change in satellite constellation used for position fix occurred large position error may result The 204 incorporates a proprietary algorithm to compensate the effect of satellite constellation change and maintains an accurate smooth estimate of the receiver position velocity and heading 11 12 FEATURES 2 1 TECHNICAL SPECIFICATIONS DESCRIPTIONS Receiver Type 12 parallel channel L1 C A code Accuracy Position 5m CEP Velocity
7. PGSA lt 1 gt lt 2 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt CR gt lt LF gt Example GPGSA A 3 26 21 09 17 10 8 02 1 10 6 07 lt CR gt lt LF gt _ Description Mode M Manual Automatic Fix type 1 not available 2 2D fix 3 3D fix 26 21 09 PRN number 01 to 32 of satellite 17 25 used solution up to 12 transmitted 10 8 Position dilution of precision 00 0 to 99 9 Horizontal dilution of precision 00 0 to 99 9 Vertical dilution of precision 00 0 to 99 9 7 07 Checksum 21 22 4 1 5 GSV GPS SATELLITE IN VIEW Number of satellites in view PRN number elevation angle azimuth angle and C No Only up to four satellite details are transmitted per message Additional satellite in view information is sent in subsequent GSV messages Format GPGSV lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt CR gt lt LF gt Example GPGSV 2 1 08 26 50 016 40 09 50 173 39 21 43 316 38 17 41 144 42 7C lt CR gt lt LF gt GPGSV 2 2 08 29 38 029 37 10 27 082 32 18 22 309 24 24 09 145 7B lt CR gt lt LF gt Satellite PRN number GPS 01 32 SBAS 33 64 33 PRN120 Satellite elevation number 00 90 degrees Satellite azimuth angle 000 359 degrees C No 00 99 dBN
8. al remains active If signal blockage prevents the receiver from generating valid position fix the 1PPS output will drift away from the GPS second and the 1PPS Valid Signal will become inactive Upon re acquiring enough satellites to generate consecutive valid position fixes the 1PPS Valid Signal will become active again signaling that the 1PPS output is again synchronized with the GPS second For best stable operation of the 1PPS signal it is to be operated in static environment having clear view of the sky SECTION 4 SOFTWARE INTERFACE This section describes the details of the serial port commands through which the HI 204E is controlled and monitored The serial port commands allow users to set the receiver parameters configure output message type and retrieve status information The baud rate and protocol of the host COM port must match the baud rate and protocol of the GPS receiver serial port for commands and data to be successfully transmitted and received The default receiver protocol is 480065100 8 data bits 1 stop bit and none parity 4 1 NMEA OUTPUT MESSAGE SPECIFICATION 204 supports NMEA 0183 output format as defined by the National Marine Electronics Association http www nmea org The currently supported NMEA messages for GPS applications are GGA Global Positioning System Fix Data GLL Geographic Position Latitude Longitude GSA GNSS DOP and Active Satellites GSV GNSS Satellites in View
9. applications for car navigation personal navigation or touring devices tracking and marine navigation purpose Users can simply plug it into a PDA or other type of handheld PC running with suitable mapping and routing software for navigation 1 1 Standard Package Before you start up make sure that your package includes the following items If any items are missing or damaged contact your dealer immediately e HI 204E GPS Receiver unit e Suction CUP e User Manual CD including User Manual HaiTest Testing Program Driver for PCMCIA card slot of Notebook PC Optional Accessories to PDA connector and car charger to DB9 adapting cable e PS II to USB adapting cable r HI 204E XXXX HI 204E USB Pocket PC Plug HI 204E DB9 SECTION 1 INTRODUCTION 1 1 OVERVIEW Fast Acquisition Enhanced Sensitivity 12 Channel GPS Sensor Module HI 204E is a compact all in one GPS module solution intended for a broad range of Original Equipment Manufacturer OEM products where fast and easy system integration and minimal development risk is required The receiver continuously tracks all satellites in view and provides accurate satellite positioning data The HI 204E is optimized for applications requiring good performance low cost and maximum flexibility suitable for a wide range of OEM configurations including handhelds sensors asset tracking PDA centric personal navigation system and
10. auses PocketPC into the power saving mode It could close the COM port at the same time Close all applications and exacute it again to re open the COM port Weak or no GPS signal when using HI 204E indoor or inside the car Put HI 204E to an open space or car roof then press the Reset button
11. eed to receive the signal there are no restrictions on who can use the signal available to civilians GPS technology can be used in a variety of fields besides providing navigation for vehicles on the sea in the air and on the ground GPS applications also include keeping track of where a fleet of trucks trains ships or planes are and how fast they are moving directin gemergency vehicles to the scene of an accident mapping where a city s assets are located and providing precise timing for endeavors that require large scale coordination GLOBAL POSITIONING SYSTEM HI 204E GPS RECEIVER Pin Assignment 1800 30mm Connectors 0 Mini Din 6 pin male connector Wire 3 6 0 1mm Pocket 204 PS II GPS receiver Can Connecting a female Connector One end from the female Connector is 12V car charger charging PDA and GPS receiver simultaneously the other end form the female connector is the PDA connector for connecting your PDA For notebook PC use 204 PS II can also connect with a PS II to 9 PS 232 serial cable or USB connector 1 204 Series Introductions HI 204E is a GPS receiver with PS II mini DIN interfaces and built in active antenna for high sensitivity to tracking signal HI 204E is well suited to system integration and users who use any kinds of mobile devices such as PDA notebook PC Tablet PC etc It satisfies a wide variety of
12. o output message Asynchronous serial input at LVTTL level to input command message Asynchronous serial output at RS 232 level to output message Asynchronous serial input at RS 232 level to input command message 3 3 ONE PULSE PER SECOND 1PPS OUTPUT one pulse per second output is provided for applications requiring precise timing measurements The output pulse is 1usec in duration Rising edge of the output pulse is accurate to 1usec with respect to the start of each GPS second Accuracy of the one pulse per second output is maintained only when the GPS receiver has valid position fix The 1PPS output is always generated when the GPS receiver iS powered on Proper adjustment of the 1PPS output to align with the GPS second requires calculation of the receiver clock offset and clock drift rate as part of the position velocity time PVT solution When enough satellite signals are received to generate valid position fixes the 1PPS output is adjusted to align with the GPS second in several seconds When the 1PPS output is brought in sync with the GPS second the 1PPS Valid Signal on the I O pin becomes active HIGH when the 1PPS output is not yet in sync with the GPS second the 1PPS Valid Signal remains inactive LOW 15 16 As long as enough satellite signals are received to generate valid position fixes the 1PPS output remains synchronized to the GPS second and the 1PPS Valid Sign
13. t lt 6 gt lt CR gt lt LF gt Example GPVTG 221 0 T 224 3 M 016 0 N 0029 6 K A 1F lt CR gt lt LF gt Example 221 0 224 3 016 0 0029 6 6 1F Description True course over ground 000 0 359 9 degrees Magnetic course over ground 000 0 359 9 degrees Speed over ground 000 0 999 9 knots Speed over ground 0000 0 1800 0 kilometers per hour Mode indicator Data invalid Autonomous D Differential Estimated Checksum 4 1 8 ZDA TIME AND DATE Format GPZDA lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt CR gt lt LF gt Example GPZDA 104548 04 25 03 2004 6C lt CR gt lt LF gt Field Example Description 1 6 104548 04 25 03 UTC time in hhmmss ss format 000000 00 235959 99 UTC time day 01 31 UTC time month 01 12 UTC time year 4 digit year Local zone hour Not being output by the receiver NULL Local zone minutes Not being output by the receiver NULL 7 6C Checksum Binary Messages See Binary Message Protocol User s Guide for detailed descriptions 25 MECHANICAL CHARACTERISTICS 1 0 1 5 36 1 T unit mm APPENDIX DEFAULT VALUES The product has the following factory preset default values Datum 000 WGS 84 NMEA Enable Switch GGA ON GLL ON GSA ON GSV ON RMC ON VTG ON Checksum ON Ba
14. ud Rate 4800 Bps Elevation Mask 5 degrees DOP Mask DOP Select Auto 20 PDOP 15 HDOP 8 Receiver Operating Mode Normal Mode without 1PPS Commands can be issued to the HI 204E to change the settings of the receiver The new settings will remain effective on next power on as long as the on board rechargeable backup battery is not discharged After the backup battery is discharged factory preset default settings will be used 27 28 TROUBLESHOOTING No Position output but timer is counting Weak or no GPS signal can be received at the place of HI 204E unit Place the HI 204E under an open space then press Reset At outdoor space but GPS signal is blocked by building or car roof To try again go to outdoor and press or connect external antenna on the side of HI 204E to improve the poor GPS signal Execute Fail Wrong CPU type PocketPC support multiple typs of CPU Make sure you download the correct testing or mapping software You can use the PDA smart menu s setting function to see wether the CPU type is correct or not Can s open COM port The PS II connector did not insert correctly or some other application is the COM port Plug HI 204E connector firmly or close all other application that occupied the COM port Can not find HI 204E Poor connection Check HI 204E if Plug firmly No signal No action for few minites may c
15. ull when not tracking Checksum 4 1 6 RECOMMANDED MINIMUM SPECIFIC GPS TRANSIT DATA Time date position course and speed data Format GPRMC lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt lt 10 gt lt 11 gt lt 12 gt lt 13 gt lt CR gt lt LF gt Example S GPRMC 104549 04 A 2447 2038 N 12100 4990 E 016 0 221 0 250304 003 3 W A 22 lt CR gt lt LF gt Field Example Description 1 104549 04 2447 2038 12100 4990 7 016 0 UTC time in hhmmss ss format 000000 00 235959 99 Status V navigation receiver warning valid position Latitude in dddmm mmmm format Leading zeros transmitted Latitude hemisphere indicator N North S South Longitude in dddmm mmmm format Leading zeros transmitted Longitude hemisphere indicator East W West Speed over ground 000 0 999 9 knots 8 221 0 Course over ground 000 0 359 9 degrees 9 250304 UTC date of position fix ddmmyy format 10 003 3 Magnetic variation 000 0 180 0 degrees 11 W 13 22 Magnetic variation direction East West Mode indicator N Data invalid D Differential A Autonomous Estimated Checksum 23 24 4 1 7 VTG COURSE OVER GROUND AND GROUND SPEED Velocity is given as course over ground COG and speed over ground SOG Format GPVTG lt 1 gt T lt 2 gt M lt 3 gt N lt 4 gt K lt 5 g
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