HI-204III-USB Ultra High Sensitive USB GPS Receiver General description of what .......................................... GPS is and how it works HI-204III-USB Series Introductions .............................. TROUBLESHOOTING .................................................. A. INTRODUCTION OF GPS USB DRIVER FILES ....... 1 4 27 29 B. WINDOWS 98 INTERFACE ....................................... 32 1. Install GPS USB Driver ........................................... 32 2. Check Enable COM Port Number ............................. 38 3. Remove GPS USB Driver ......................................... 44 C. WINDOWS XP INTERFACE ........................................ 45 1. Install GPS USB Driver ............................................. 45 2. Check Enable COM Port Number ............................. 48 3. Remove GPS USB Driver ......................................... 55 D. CHANGE COM PORT NUMBER APPLICATION PROGRAM .......................................... 56 E. IMPORTANT REMARK ................................................ 58 HI-204III-USB WATERPROOF Ultra High Sensitive USB 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 miles above by the Earth. They are continuously monitored 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 0.000000003, 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. 2 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. 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. 3 1. HI-204III-USB Series Introductions HI-204III-USB is a GPS receiver with USB interfaces and built-in active antenna for high sensitivity to tracking signal. HI-204III-USB is well suited to system integration and users who use any kinds LaptopPC. It satisfies a wide variety of applications for car navigation, personal navigation or touring devices, tracking and marine navigation purpose. Users can simply plug it into a LaptopPC 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. · HI-204III-USB GPS Receiver unit · Suction CUP · User Manual CD (including User Manual, HaiTest Testing Program) 4 USB port For notebook PC use: HI-204III-USB connect with a LaptopPC USB port. 5 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-USB 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. Its 20 parallel channels and 4000 search bins provide fast satellite signal acquisition and short startup time. Tracking sensitivity of -159dBm offers good navigation performance even in urban canyons having limited sky view. Satellite-based augmentation systems, such as WAAS and EGNOS, are supported to yield improved accuracy. 6 1.2 Features · 20 parallel channel GPS receiver · 4000 simultaneous time-frequency search bins · SBAS (WAAS, EGNOS) support · -159dBm tracking sensitivity · < 8 second hot start · < 40 second cold start 7 SECTION 2 RECEIVER OPERATION Upon power up, after initial self-test has completed, the HI-204III-USB 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 RTC time to achieve rapid GPS signal acquisition and fast TTFF. If the receiver is transported over a large distance across the globe, cold-start automaticlocate 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. 8 As soon as GPS signal is acquired and tracked, the HI-204III-USB 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-USB will perform 3D 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 HI-204III-USB 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. 9 2. Technical Specifications 2.1. Electrical Characteristics Items Chipset General GSP3F Frequency C/A code Channels Position Accuracy Velocity Datum Time Default Other Description SiRF StarIII technology L1, 1575.42 MHz 1.023 MHz chip rate 20 10 meters, 2D RMS 5 meters 2D RMS, WAAS corrected <5meters(50%), DGPS corrected 0.1 meters/second 1 microsecond synchronized to GPS time WGS-84 selectable for other Datum 0.1 sec., average 1 sec., average 8 sec., average 38 sec., average 42 sec., average 18,000 meters (60,000 feet) max. 515 meters/second (1000 knots) max. 4g, max. 20 meters/second3, max. Acquisition Reacquisition Rate (Open Sky Snap start & Stationary Requirements) Hot start Warm start Cold start Altitude Dynamic Conditions Velocity Acceleration Jerk Power Dimension Weight Main power input 5V DC input. Power consumption 0.38 W (continuous mode) Supply Current 75mA Backup power 3 V Lithium-Ion rechargeable battery 43mm L x 42mm W x 13mm H 23g 10 2.2 LED INDICATOR LED flashing 0.25Hz LED flashing 1Hz Signal Searching Position Fixed 11 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 Bottom View LED indicator 69±0.2 I/O Cable CPU Magnetic 73±0.2 12 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. 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). 13 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. 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. 14 SECTION 4 SOFTWARE INTERFACE This section describes the details of the serial port commands through which the HI-204III-USB 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 4800 bps, 8 data bits, 1 stop bit, and none parity. 4.1 NMEA OUTPUT MESSAGE SPECIFICATION The HI-204III-USB 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 RMC Recommended Minimum Specific GNSS Data VTG Course Over Ground and Ground Speed 15 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: $GPGGA,104549.04,2447.2038,N,12100.4990,E,1,06, 01.7,00078.8,M,0016.3,M,,*5C 16 Field Example Description 1 104549.04 UTC time in hhmmss.ss format, 000000.00 ~ 235959.99 2 2447.2038 Latitude in ddmm.mmmm format Leading zeros transmitted 3 N Latitude hemisphere indicator, 'N' = North, 'S' = South 4 12100.4990 Longitude in dddmm.mmmm format Leading zeros transmitted 5 E Longitude hemisphere indicator, 'E' = East, 'W' = West 6 1 Position fix quality indicator 0: position fix unavailable 1: valid position fix, SPS mode 2: valid position fix, differential GPS mode 7 06 Number of satellites in use, 00 ~ 12 8 01.7 Horizontal dilution of precision, 00.0 ~ 99.9 9 00078.8 Antenna height above/below mean sea level, -9999.9 ~ 17999.9 10 0016.3 Geoidal height, -999.9 ~ 9999.9 11 Age of DGPS data since last valid RTCM transmission in xxx format (seconds) NULL when DGPS not used 12 Differential reference station ID, 0000 ~ 1023 NULL when DGPS not used 13 5C Checksum Note: The checksum field starts with a '*' and consists of 2 characters representing a hex number. The checksum is the exclusive OR of all characters between '$' and '*'. 17 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 18 Field 1 2 3 4 5 6 7 Example Description Leading zeros transmitted 2447.2073 Latitude in ddmm.mmmm format N Latitude hemisphere indicator, 'N' = North, 'S' = South 12100.5022 Longitude in dddmm.mmmm format Leading zeros transmitted E Longitude hemisphere indicator, 'E' = East, 'W' = West 104548.04 UTC time in hhmmss.ss format, 000000.00 ~ 235959.99 A A Status, 'A' = valid position, 'V' = navigation receiver warning Mode indicator 'N' = Data invalid 'A' = Autonomous 'D' = Differential 'E' = Estimated 8 65 Checksum 19 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 1 2 3 4 5 6 7 Example A 3 Description Mode, 'M' = Manual, 'A' = Automatic Fix type, 1 = not available, 2 = 2D fix, 3 = 3D fix 26,21,,,09, PRN number, 01 to 32, of satellite 17,,,,,, 10.8 02.1 10.6 07 used in solution, up to 12 transmitted 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 Checksum 20 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>,<5>,<6>,<7> *<8> Example: $GPGSV,2,1,08,26,50,016,40,09,50,173,39,21,43,316, 38,17,41,144,42*7C $GPGSV,2,2,08,29,38,029,37,10,27,082,32,18,22,309, 24,24,09,145,*7B 21 Field 1 2 3 4 5 6 7 8 Example 2 1 08 26 50 016 40 7C Description Total number of GSV messages to be transmitted Number of current GSV message Total number of satellites in view, 00 ~ 12 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 dBNull when not tracking Checksum 22 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 23 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.mmmm format Leading zeros transmitted 4 N Latitude hemisphere indicator, 'N' = North, 'S' = South 5 12100.4990 Longitude in dddmm.mmmm format Leading zeros transmitted 6 E Longitude hemisphere indicator, 'E' = East, 'W' = West 7 016.0 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 Magnetic variation direction, 'E' = East, 'W' = West 12 A Mode indicator 'N' = Data invalid 'D' = Differential 'A' = Autonomous 'E' = Estimated 13 22 Checksum 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,<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 1 2 3 4 5 Example 221.0 224.3 016.0 0029.6 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 ~ 1800.0 kilometers per hour Mode indicator 'N' = Data invalid 'A' = Autonomous 6 1F Checksum 'D' = Differential 'E' = Estimated 25 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. output) GSV ON ( 5 sec. output) RMC ON ( 1 sec. output) VTG ON ( 1 sec. output) Checksum ON Baud Rate: Elevation Mask: DOP Mask: 4800 Baud 5 degrees DOP Select: Auto GDOP: 10 PDOP: 10 HDOP: 10 Receiver Operating Mode: Normal Mode (without 1PPS) Commands can be issued to the HI-204III 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. 26 TROUBLESHOOTING Problem No Position output but timer is counting Reasons Weak or no GPS signal can be received at the place of HI-204III-USB unit At outdoor space but GPS signal is blocked by building or car roof To try again, go to outdoor and press 'Reset' or connect external antenna on the side of HI-204III-USB to improve the poor GPS signal Can's open COM port The PS/II connector did not insert correctly or some other application is the COM port Can not find HI-204III-USB No signal Poor connection No action for few minites may causes PocketPC into the power saving mode. It could close the COM port at the same time. Weak or no GPS signal when using HI-204III-USB indoor or inside the car. Put HI-204III-USB to an open space or car roof, then, press the Reset button Check HI-204III-USB if Plug firmly Close all applications and exacute it again to re-open the COM port Plug HI-204III-USB connector firmly or close all other application that occupied the COM port Solutions Place the HI-204III-USB under an open space, then, press 'Reset' 27 USB Driver Setup Guide HI-204III-USB USB GPS Receiver 28 A. Introduction of GPS USB Driver Files The USB GPS driver group consists of 6 files. Files Name DRemover98_2K.exe Description of Specific Property Type: Application This execution file removes GPS USB driver from the PC. Serwpl.inf Type: Setup Information This file provides major setup information. Win2K\ser2pl.sys Type: System File This file provides Windows 2000 and Windows XP hardware specific interface. Win98_ME\ser9pl.sys Type: System File This file provides Windows 98 and Windows Millennium hardware specific interface. Win98_ME\serspl.inf Type: Setup Information This file provides Windows 98 and Windows Millennium setup information Win98_ME\serspl.vxd Type: Virtual Device Driver This file is virtual device driver. 29 Figure 1: Screen of GPS USB Driver Group Figure 2: Screen of GPS USB Driver Win 2000 and Win XP System File 30 Figure 3: Screen of GPS USB Driver Win 98 and Win ME Group 31 B.Windows 98 Interface 1. Install GPS USB Driver Before the installation of GPS USB driver, there are three procedures required. The first thing is to turn on PC in the Windows environment. The second thing is to copy USB driver into HDD. The third thing is to plug the GPS receiver into the USB port of PC and then follow the installation guide. 32 Step 1: Click the "Next" button Figure 4: Win 98 Automatic Installation Driver Screen 33 Step 2: Select "Automatically"and click the "Next" button Figure 5: Win 98 Automatic Installation Driver Screen 34 Step 3: Specific driver location and click the "Next"button Figure 6: Win 98 Automatic Installation Driver Screen 35 Step 4: Click the "Next"button Figure 7: Win 98 Automatic Installation Driver Screen 36 Step 5: Click the "Finish"button Figure 8: Win 98 Automatic Installation Driver Screen 37 2. Check Enable COM Port Number After you install GPS USB driver, you should know which COM port is available, and check enabled COM port number. You need to know the COM port assignment for the GPS receiver, when configuring map or chart software. Please notice that this remark is very important; if not configured properly, the mapping software will not communicate with the GPS receiver. To check your assigned COM port for the GPS receiver, please follow the instructions below. Step 1: Check enabled COM port number by double-clicking the icon show in Figure-9,and then a dialog window shown in Figure-10 will be pop up. Figure 9: My Computer Icon 38 Step 2: Double-click the "Control Panel" icon Figure 10: My Computer Screen 39 Step 3: Double-click the "System" icon Figure 11: Control Panel Screen 40 Step 4: Press"Device Manager" button Figure 12: System Properties Screen 41 Step 5: Slect "USB to Serial Port" (COM3) and click "Propertes" button Figure 13: System Properties Screen 42 Step 6: Browse COM3 properties Figure 14: System Properties Screen 43 3. Remove GPS USB Driver If you want to update the USB driver, you should remove existing driver and install new one. Step 1: Remove GPS USB driver by double-clicking the icon show in Figure-15. A dialog window shown in Figure-16 will be pop up. Figure 15: GPS USB Driver Remove Icon Step 2: Click "OK" button Figure 16: Remove Driver Screen Step 3: Click "Yes" Figure 17: Driver Remove Warning Screen 44 C. Windows XP Interface 1. Install GPS USB Driver Before the installation of GPS USB driver, there are three procedures required. The first thing is to turn on PC in the Windows environment. The second thing is to copy USB driver into HDD. The third thing is to plug the GPS receiver into the USB port of PC and then follow the installation guide. Step 1: Select "Install from a list or specific location (Advanced)" Figure 18: Win XP Automatic Installation Driver Screen 45 Step 2: Select "Include this location in the search" OR "Browse" to specific GPS USB driver location Figure 19: Win XP Automatic Installation Driver Screen Step 3: Click "Continue Anyway" button Figure 20: Win XP Automatic Installation Driver Screen 46 Step 4: Finish screen Figure 21: Win XP Automatic Installation Driver Screen Step 3: Click "Continue Anyway" button Figure 22: Win XP Automatic Installation Driver Screen 47 2. Check Enable COM Port Number After you install GPS USB driver, you should know which COM port is available, and check enabled COM port number. You need to know the COM port assignment for the GPS receiver, when configuring map or chart software. Please notice that this remark is very important; if not confingured properly, the mapping software will not communicate with the GPS receiver. TO check your assigned COM port for the GPS receiver, please follow the instructions below. Step 1: Check enabled COM port number by clicking "Start" § clicking "Control Panel" § double-clicking "System" icon 48