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HI-204E HI-204E
Mini-DIN Mini-DIN
GPS Receiver GPS Receiver
User Manual
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HI-204E HI-204E WATERPROOF WATERPROOF GPS Receiver GPS Receiver 1
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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 preci
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Although GPS was designed for military use, many thousands of civi lians 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 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. G
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GLOBAL POSITIONING SYSTEM HI-204E GPS RECEIVER Pin Assignment 1800±30mm Connectors 1 1 3 5 2 2 4 6 PS/2 Connector 1 Function Mini Din: 6 pin male Color CN1 Green TX 5 connector White 4 RX 2 Red VCC 2 Wire: 3.6 ± 0.1mm Black GND 1 4
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Pocket PC HI-204E 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-204E PS/II can also connect with a PS/II to DB9 PS-232 serial cable or USB connector. 5
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1. HI-204E 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 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
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Optional Accessories: • PS/II to PDA connector and car charger • PS/II to DB9 adapting cable • PS/II to USB adapting cable HI-204E-USB HI-204E-XXXX (Pocket PC Plug) HI-204E-DB9 7
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SECTION 1 INTRODUCTION 1.1 OVERVIEW Fast Acquisition Enhanced Sensitivity 12 Channel GPS Sensor Module The 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,
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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. 1.2 Features • 12 parallel channel GPS receiver • 4000 simultaneous time-frequency search bins • SBAS (WAAS, EGNOS) support • -137dBm acquisition sensitivity • -145dBm tracking sensitivity • < 10 second hot start • < 45 second cold start • 5m CEP
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SECTION 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
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As soon as GPS signal is acquired and tracked, the HI-204E 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-204E 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
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2.1 TECHNICAL SPECIFICATIONS FEATURES DESCRIPTIONS Receiver Type 12 parallel channel, L1 C/A code Accuracy Position: 5m CEP Velocity: 0.1m/sec Startup Time < 10sec hot start < 35sec warm start < 45sec cold start Reacquisition 1s Sensitivity -137dBm acquisition -145dBm tracking Update Rate 1Hz Dynamics 4G (39.2m/sec2) Operational Limits Altitude < 18,000m or velocity < 515m/s (COCOM limit, either may be exceeded but not both) Serial Interface LVTTL level and RS-232 level Protocol NMEA
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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 13
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Patch Antenna pin-1 HI-204E Lateral View 3.2 PINOUT DESCRIPTION Pin Number Signal Name Description Asynchronous serial 1 Serial Data Out 1 output at LVTTL level, to output NMEA message Asynchronous serial input 2 Serial Data In 1 at LVTTL level, to input command message Asynchronous serial 3 Serial Data Out 2 output at RS-232 level, to output NMEA message Asynchronous serial input 4 Serial Data In 2 at RS-232 level, to input command message 5 Power 3.8V ~ 12.0V DC input 6 Ground Power an
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3.3 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
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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, sign
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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 protoc
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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,104549.04,2447.203
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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
