冠天HOLUX GPS导航设备-GR-86说明书.pdf-资料库

GPS Product series With HOLUX, You never lose the way! GR-86 GPS Engine Board User’s Guide Mar. 17, 2005 Version A HOLUX Technology Inc. 1F, No. 30, R&D Rd. II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan. Phone: +886-3-6687000 Fax: +886-3-6687111 E-Mail: info@holux.com.tw Web: www.holux.com.tw All Right Reserved HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw 1

GPS Product series With HOLUX, You never lose the way! TABLE OF CONTENTS 1. Introduction .................................................................................................3 2. Main Feature .............................................................................................3 3. Technical Specifications..................................................................4 3.1. Electrical Characteristics.................................................................4 3.2. Environmental Characteristics .....................................................5 3.3. Physical Characteristics ...................................................................5 4. Software Interface ................................................................................6 4.1 NMEA Transmitted Messages .......................................................6 4.2 RTCM Received Data ......................................................................12 4.3 . Manufacturing Default: ................................................................13 5. Mechanical Dimensions ...............................................................14 5.1 . GR-86 outline:...................................................................................14 5.2 . Pin assignment of connector : ...................................................14 6. Operation and Test ............................................................................15 HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw 2

GPS Product series With HOLUX, You never lose the way! 1. Introduction HOLUX GR-86 is a high performance, low power consumption, small size, very easy integrated GPS engine board designed for a broad spectrum of OEM system applications. This product is based on the proven technology found in other HOLUX 20 channel GPS receivers and SiRFstar III chipset solution. The GPS engine board will track up to 20 satellites at a time while providing fast time-to-first-fix and one-second navigation updates. Its far reaching capability meets the sensitivity requirements of car navigation as well as other location-based applications. Therefore, HOLUX GR-86 engine board is very fit to the customers who devote themselves to AVL system integration and location-based service. The GR-86 design utilizes the latest surface mount technology (BGA) and high level circuit integration to achieve superior performance while minimizing space and power requirements. This hardware capability combined with software intelligence makes the board easy to be integrated and used in all kinds of navigation applications or products. The application system may communicate with the engine board set via TTL voltage level. 2. Main Feature Build on high performance SiRFstarIII chipset. Average Cold Start time and under 42 seconds. Low power consumption 20 channels “All-in-View” tracking. Integrated ARM7TDMI CPU with software engineering services and available for embedded customer defined applications. On chip 4Mb SRAM. Dual TTL level serial ports with one for GPS receiver command message interface, another one for RTCM-104 DGPS input. Compact Board Size 24x24x2.7mm for easy integration into hand-held device. Reacquisition Time：0.1 seconds Support Standard NMEA-0183 and SiRF Binary protocol Support Accurate 1PPS Output Signal Aligned with GPS Timing Multi-path Mitigation Hardware On-board RTCM SC-104 DGPS and WAAS /EGNOS Demodulator HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw 3

GPS Product series With HOLUX, You never lose the way! 3. Technical Specifications 3.1. Electrical Characteristics 3.1.1 General 1). Frequency：L1, 1575.42 MHz. 2). C/A code：1.023 MHz chip rate. 3). Channels：20 3.1.2 Accuracy (Open Sky) 1). Position：10 meters, 2D RMS. 2). 7 meters 2D RMS, WAAS corrected. 3). 1-5 meters, DGPS corrected. 4). Time 1 microsecond synchronized to GPS time. 3.1.3 Datum 1). Default：WGS-84. 2). Other Support different datum by request. 3.1.4 Acquisition Rate (Open sky, stationary requirements) 1). Reacquisition：0.1 sec., average. 2). Hot start：1 sec., average. 3). Warm start：38 sec., average. 4). Cold start：42 sec., average. 3.1.5 Dynamic Conditions 1). Altitude : 18,000 meters (<60,000 feet) Max 2). Velocity：736 m/s (<1,000 knots) Max 3). Acceleration：4 G, Max 4). Jerk：20 meters/second, Max 3.1.6 Power 1). Input power input：3.3~5.5VDC input 2). Input current: Less than 80mA (without antenna) 3.1.7 RF interface 1). Minimum signal tracked: -159dBm HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw 4

GPS Product series With HOLUX, You never lose the way! 3.1.8 Serial Port 1). Two full duplex serial communication, TTL interface, with user selectable baud rate (4800-Default, 9600, 19200, 38400) 2). NMEA 0183 Version 2.2 ASCII output (GGA, GSA, GSV, RMC (VTG , GLL and ZDA for optional)) 3). DGPS protocol RTCM SC-104 message types 1, 2 and 9 4). SiRF binary-position, velocity, altitude, status output 3.1.9 TIMEMARK-1PPS Pulse 1). Level TTL 2). Pulse duration 100ms 3). Time reference At the pulse positive edge 4). Measurements Aligned to GPS second, ±1 microsecond 3.2. Environmental Characteristics 1). Operating temperature range -40 ℃ to +85 ℃ 2). Storage temperature range -45 ℃ to +100 ℃ . 3.3. Physical Characteristics 1) Active Size: 24(W) x 24(D) x 2.7(H) (mm) 2) Weight: less than 2 g HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw 5

GPS Product series With HOLUX, You never lose the way! 4. Software Interface The GR-86 interface protocol is based on the National Marine Electronics Association's NMEA 0183 ASCⅡ interface specification, which is defined in NMEA 0183, Version 2.2 and the Radio Technical Commission for Maritime Services (RTCM Recommended Standards For Differential Navstar GPS Service, Version 2.1, RTCM Special Committee No.104). As soon as the initial self-test is complete, the GR-86 begins the process of satellite acquisition and tracking automatically. Under normal circumstances, it takes approximately 42 seconds to achieve a position fix, 38 seconds if ephemeris data is known. After a position fix has been calculated, information about valid position, velocity and time is transmitted over the output channel. The GR-86 utilizes initial data, such as last stored position, date, time and satellite orbital data, to achieve maximum acquisition performance. If significant inaccuracy exists in the initial data, or the orbital data is obsolete, it may take more time to achieve a navigation solution. The GR-86 Auto-locate feature is capable of automatically determining a navigation solution without intervention from the host system. However, acquisition performance can be improved as the host system initializes the GR-86 in the following situation: 4.1 NMEA Transmitted Messages The default communication parameters for NMEA output are 4800 baud, 8 data bits, stop bit, and no parity. Table 4-1 NMEA-0183 Output Messages NMEA Record Description GPGGA GPGLL GPGSA GPGSV GPRMC GPVTG GPMSS GPZDA Global positioning system fixed data Geographic position- latitude/longitude GNSS DOP and active satellites GNSS satellites in view Recommended minimum specific GNSS data Course over ground and ground speed Radio-beacon Signal-to-noise frequency, etc. PPS timing message (synchronized to PPS) ratio, signal strength, HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw 6

GPS Product series With HOLUX, You never lose the way! 4.1.1 Global Positioning System Fix Data (GGA) Table 4-2 contains the values for the following example: $GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18 Table 4-2 GGA Data Format Units Description Example $GPGGA 161229.487 3723.2475 GGA protocol header hhmmss.sss ddmm.mmmm N=north or S=south dddmm.mmmm E=east or W=west See Table 5-3 Range 0 to 12 Horizontal Dilution of Precision Name Message ID UTC Time Latitude N/S Indicator Longitude E/W Indicator Position Fix Indicator Satellites Used HDOP MSL Altitude (1) Units Geoid Separation(1) Units Age of Diff. Corr. Diff. Ref. Station ID Checksum (1). SiRF Technology Inc. does not support geoid corrections. Values are WGS84 ellipsoid heights. Table 4-3 Position Fix Indicator Meters Meters Meters Meters second Null fields when DGPS is not used End of message termination N W 1 07 1.0 9.0 M M 0000 *18 12158.3416 Value 0 1 2 3 Description 0 Fix not available or invalid GPS SPS Mode, fix valid Differential GPS, SPS Mode, fix valid GPS PPS Mode, fix valid 4.1.2 Geographic Position with Latitude/Longitude(GLL) Table 4-4 contains the values for the following example: HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw 7

GPS Product series With HOLUX, You never lose the way! $GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C Table 4-4 GLL Data Format Units Description Name N W Example $GPGLL 3723.2475 12158.3416 161229.487 Message ID Latitude N/S Indicator Longitude E/W Indicator UTC Position Status Checksum 4.1.3 GNSS DOP and Active Satellites (GSA) Table 4-5 contains the values for the following example: A *2C GLL protocol header ddmm.mmmm N/S Indicator N N=north or S=south dddmm.mmmm E=east or W=west hhmmss.sss A=data valid or V=data not valid End of message termination $GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33 Table 4-5 GSA Data Format Units Description Example $GPGSA A 3 07 02 1.8 1.0 1.5 *33 Name Message ID Mode 1 Mode 2 Satellite Used(1) Satellite Used(1) …… Satellite Used(1) PDOP HDOP VDOP Checksum 1. Satellite used in solution. HOLUX Technology, Inc. 1F, No.30, R&D Rd.II, Hsin-Chu City 300, Science-based Industrial Park, Taiwan TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw GSA protocol header See Table 5-6 See Table 5-7 Sv on Channel 1 Sv on Channel 2 …. Sv on Channel 12 Position Dilution of Precision Horizontal Dilution of Precision Vertical Dilution of Precision End of message termination 8

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冠天HOLUX GPS导航设备-GR-86说明书.pdf

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