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        • 标题: GP208T
        • 型号: Beidou GPS positioning and orientation board
        • 概述:
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        General Description

        The description of technical status, parameters and user interface suit for the double beidou positioning and orientation board GP208T.

        Special note

        Antenna installation condition: due to the proper work subject to GPS and BD satellite, so the external receiving(sending) antenna not only should be installed in open area without shield and obvious electromagnetic environment, but also be prevented from direct shoot of high power radio transmission equipment, by which damage of antenna even host machine maybe caused.

        Salt-mist and water proof: the antenna is installed outside at height by bracket and without shield, so salt-mist and water-proof should be taken good care to protect it. Water-proof tape around connectors and frequent clean should be performed.

         Function

        GP208T could provide position, speed, time, heading and pitch angle. It carries on the technology advantage of our company in satellite navigation measurement. By GPS L1, L2, Beidou B1, B3 signals and heading algorithm, it precisely figure out antenna position value and the included angle between two antenna phase position center tie line and true north. When positioning, it could receive differential data link from GPS ground-reference station, realizing carrier phase differential positioning function in real time and improving accuracy to 2cm.

         

        system configuration

        Table 1 system configuration

        receiver

        1 set

        satellite antenna of four frequency range

        2 pieces

        Demonstration software and instruction disk

        1 piece

        certificate

        1 copy

         technical index

        Table main technical index

        system accuracy

        heading

        0.2°good satellite signal, base line≥2m);

        Single point positioning accuracy

        Single point2mCEP)(good satellite signal

        Precision of pseudo

        GPSL1=10cm(18)/L2=10cm(30)/L5=5cm

        BDSB1=10cm(13)/B2=10cm(6)/B3=5cm

        signal carrier precision

        L1=0.5mm/L2=1mm/L5=0.5mm

        B1=0.5mm/B2=0.5mm /B3=0.5mm

        static accuracy

        level:±(2.5 +1×10-6×D)mm

        vertical:±(5 + 1×10-6×D)mm

        RTK accuracy

        level:±(10+1×10-6×D)mm

        vertical:±(20+1×10-6×D)mm

        Time service accuracy

        GPS 50ns

        BDS 50ns

        GPS+BDS 30ns

        speed measuring precision

        0.2m/s(95%)

        acceleration

        4g

        overload

        15g

        RTK initialization

        RTK initialization time

        <10s(base line<20km),

        Reliability of initialization> 99.9%

        E-RTK initialization

        (base line<100km)

        RTK initialization time:<1s

        Reliability of initialization:> 99.9%

        Signal tracing

        Cold start-up

        <50s

        Warm start-up

        <30s

        Hot start-up

        <15s

        Signal re-acquisition

        <2s

        Interface trait.

        Interface type

        RS-232

        Baud rate

        115200 bpsdefault

        electrical parameters

        Supply power

        12VDC nominal(1032VDC

        Power rating

        ≤3W

        condition

        Working temp.

        -40℃+75℃

        Store temp.

        -45℃— +85℃

        RH

        95% non-condensing

        features

        dimension

        120mm×84mm×43mm

        weight

        240gwithout antenna and cable

        I/O interface

        7-pin air-plug

        data refresh rate

        Positioning orientation data refresh rate

        1Hz2Hz5Hz10Hz optional

        Basic data refresh rate

        1Hz2Hz5Hz10Hz optional

        height

        unrestricted

        speed

        unrestricted

         hardware

        GPS antenna

        GPS antenna use GPS L1\L2, beidou B1\B3 dual system measure type antenna, easy to install.

        Antenna feeder line

        Standard feeder line matches standard antenna very well in impedance, gain. Standard length is 5m, please note us ahead if customized length is needed.

        Cardinal plate: GP208T receiver, the one marked by front antenna must be fixed on the front of the car.

        See table below for the data interface definition of receiver.

        A

        VCC Input DC  Card power

        In

        DC power input

        +6-30VDC power input

        B

        GND

        GND

        GND

         

        C

        COMA_Rx

        In

        COMA_RX port

        RS232 level

        D

        COMA_Tx

        Output

        COMA_TX port

        RS232 level

        receiver dimension

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