HI-204III Ultra High Sensitive Mini-DIN GPS Receiver
HI-204III WATERPROOF Ultra High Sensitive GPS Receiver 1
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 continuously miles monitored above by the ground Earth. They stations are 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.
Although GPS was designed for military use, many thousands of civilians make use of it. The satellites actually broadcast two signals, one is only for military use, and the other can be used by both military and civilians. Since GPS is passive (you only need 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.
GLOBAL POSITIONING SYSTEM HI-204III GPS RECEIVER Pin Assignment Connectors 1 3 5 2 4 6 1800±30mm 1 2 PS/2 Connector Color Function CN1 Green TX 5 White RX 4 Red VCC 2 Black GND 1 4 1 Mini Din: 6 pin male connector 2 Wire: 3.6 ± 0.
Pocket PC HI-204III PS/II GPS receiver Can Connecting to a female PS/II Connector. One end from the female Connector is +12V car charger (charging PDA and GPS receiver simultaneously) the other end form the female PS/II connector is the PDA connector for connecting your PDA. For notebook PC use: HI-204III PS/II can also connect with a PS/II to DB9 PS-232 serial cable or USB connector.
1. HI-204 III Series Introductions HI-204III is a GPS receiver with PS/II mini-DIN interfaces and built-in active antenna for high sensitivity to tracking signal. HI-204III 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 applications for car navigation, personal navigation or touring devices, tracking and marine navigation purpose.
Optional Accessories: • PS/II to PDA connector and car charger • PS/II to DB9 adapting cable • PS/II to USB adapting cable HI-204III -USB HI-204III -XXXX (Pocket PC Plug) HI-204III -DB9 7
SECTION 1 INTRODUCTION 1.1 OVERVIEW Fast Acquisition Enhanced Sensitivity 20 Channels “All-In-View” Tracking GPS Sensor Module The receiver continuously tracks all satellites in view and provides accurate satellite positioning data. The HI-204III 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 vehicle navigation products.
Satellite-based augmentation systems, such as 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.
SECTION 2 RECEIVER OPERATION Upon power up, after initial self-test has completed, the HI-204 III 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.
As soon as GPS signal is acquired and tracked, the HI-204III will transmit valid navigation information through its serial interface. The navigation data contains following information: • Receiver position in latitude, longitude, and altitude • Receiver velocity • Time • DOP error-magnification factor • GPS signal tracking status The HI-204III will perform 3D navigation when four or more satellites are tracked.
2. Technical Specifications 2.1. Electrical Characteristics Chipset General Items GSP3F Frequency Description SiRF StarIII technology L1, 1575.42 MHz C/A code Channels 1.023 MHz chip rate 20 Position 10 meters, 2D RMS 5 meters 2D RMS, WAAS corrected <5meters(50%), DGPS corrected Velocity Time Default Other 0.
SECTION 3 HARDWARE INTERFACE 3.1 MECHANICAL DIMENSIONS Unit:mm Top View 69±0.2 I/O Cable Build-in patch antenna Lateral View 20±0.2 I/O Cable LED indicator Bottom View 69±0.2 I/O Cable CPU Magnetic 73±0.
3.2 ONE-PULSE-PER-SECOND (1PPS) OUTPUT The 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.
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 Signal 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.
SECTION 4 SOFTWARE INTERFACE This section describes the details of the serial port commands through which the HI-204III 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.
4.1.1 NMEA Messages The serial interface protocol is based on the National Marine Electronics Association's NMEA 0183 ASCII interface specification. This standard is fully define in "NMEA 0183, 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, HDOP, etc.). Format: $GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>, M,<10>,M,<11>,<12>,*<13> Example: $GPGGA,104549.04,2447.2038,N,12100.
Field Example Description 1 104549.04 UTC time in hhmmss.ss format, 000000.00 ~ 235959.99 2 2447.2038 Latitude in ddmm.mmmm format Leading zeros transmitted 3 N Latitude hemisphere indicator, 'N' = North, 'S' = South 4 12100.4990 Longitude in dddmm.
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,<1>,<2>,<3>,<4>,<5>,<6>,<7>*<8> Example: $GPGLL,2447.2073,N,12100.5022,E,104548.04,A, A*65 Field 1 Example Description 2447.2073 Latitude in ddmm.mmmm format Leading zeros transmitted 2 N Latitude hemisphere indicator, 'N' = North, 'S' = South 3 12100.5022 Longitude in dddmm.
4.1.4 GSA - GPS DOP AND ACTIVE SATELLITES GPS receiver operating mode, satellites used for navigation, and DOP values. Format: $GPGSA,<1>,<2>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>, <3>,<3>,<3>,<3>,<4>,<5>,<6>*<7> Example: $GPGSA,A,3,26,21,,,09,17,,,,,,,10.8,02.1,10.6*07 Field Example 1 A Description Mode, 'M' = Manual, 'A' = Automatic 2 3 Fix type, 1 = not available, 2 = 2D fix, 3 = 3D fix 3 26,21,,,09, PRN number, 01 to 32, of satellite 17,,,,,, 4 10.8 5 02.1 6 10.
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,<1>,<2>,<3>,<4>,<5>,<6>,<7>, ...
4.1.6 RMC - RECOMMANDED MINIMUM SPECIFIC GPS/TRANSIT DATA Time, date, position, course and speed data. Format: $GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>, <11>,<12>*<13> Example: $GPRMC,104549.04,A,2447.2038,N,12100.4990,E, 016.0,221.0,250304,003.3,W,A*22 Field Example Description 1 104549.04 UTC time in hhmmss.ss format, 000000.00 ~ 235959.99 2 A Status, 'V' = navigation receiver warning, 'A' = valid position 3 2447.2038 Latitude in dddmm.
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,<1>,T,<2>,M,<3>,N,<4>,K,<5>*<6> Example: $GPVTG,221.0,T,224.3,M,016.0,N,0029.6,K,A*1F Field Example 1 221.0 2 224.3 3 016.0 4 0029.6 5 A 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.
APPENDIX B DEFAULT VALUES The product has the following factory preset default values: Datum: NMEA Enable Switch: 000 (WGS-84) GGA ON ( 1 sec. output) GLL OFF GSA ON ( 5 sec. GSV ON ( 5 sec. RMC ON ( 1 sec. VTG ON ( 1 sec. Checksum ON Baud Rate: Elevation Mask: DOP Mask: Receiver Operating Mode: output) output) output) output) 4800 Baud 5 degrees DOP Select: Auto GDOP: 10 PDOP: 10 HDOP: 10 Normal Mode (without 1PPS) Commands can be issued to the HI-204III to change the settings of the receiver.
TROUBLESHOOTING Problem Reasons Solutions No Position output but Weak or no GPS signal can be received at the place of HI-204III unit Place the HI-204III under an open space, then, press At outdoor space but GPS signal is blocked To try again, go to outdoor and press 'Reset' or connect by building or car roof external antenna on the side of HI-204III to improve the poor GPS signal Execute Fail Wrong CPU type PocketPC support multiple typs of CPU.
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WATERPROOF GPS Receiver
