POSITIONING METHOD AND POSITIONING TERMINAL
    2.
    发明申请

    公开(公告)号:US20200292714A1

    公开(公告)日:2020-09-17

    申请号:US16464188

    申请日:2017-09-15

    Inventor: Kazuyuki YOSHINO

    Abstract: A processor calibrates the velocity of a moving object by removing a velocity bias from the velocity of the moving object and calculates a DR solution based on the calibrated velocity of the moving object. In a case where a fixed solution is calculated in positioning calculation, the processor outputs the fixed solution as coordinates of the moving object, whereas in a case where a fixed solution is not calculated, the processor outputs the DR solution based on the calibrated velocity of the moving object as the coordinates of the moving object.

    COORDINATE OUTPUT METHOD AND COORDINATE OUTPUT DEVICE

    公开(公告)号:US20190049594A1

    公开(公告)日:2019-02-14

    申请号:US16076560

    申请日:2017-02-07

    Inventor: Kazuyuki YOSHINO

    Abstract: There is provided a coordinate output method capable of suppressing the influence of a positioning error (jump) of a float solution in a case where interferometric positioning by RTK method is applied to positioning of a moving body. Current coordinates of a moving body are estimated based on previous coordinates of the moving body and information on a speed of the moving body. In addition, interferometric wave positioning is executed based on the positioning data of a base station and the positioning data of a positioning station to calculate the current coordinates of the moving body as either a fix solution or a float solution. In a case where the fix solution may not be calculated after the fix solution is calculated for a predetermined time or more, the coordinates of the moving body estimated from the information on a speed are output.

    POSITIONING SYSTEM, BASE STATION, AND POSITIONING METHOD

    公开(公告)号:US20190313215A1

    公开(公告)日:2019-10-10

    申请号:US16470830

    申请日:2017-11-06

    Abstract: A positioning system includes a receiver that receives a positioning signal from a positioning satellite and generates carrier phase information, a base station that receives the carrier phase information from the receiver, and a communication terminal that performs wireless communication with the base station. The base station transmits information including the carrier phase information and the position information of the receiver as a carrier positioning signal to the communication terminal and the communication terminal performs carrier positioning using the carrier positioning signal transmitted by the base station. Here, the base station encrypts the position information of the receiver, in the carrier positioning signal to be transmitted.

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