Patent ID: 11921220
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A positioning system comprising:
a plurality of first base stations;
a mobile station;
a management station for controlling handover between the first base stations; and
a base station position calculation system;
wherein the first base station includes a first receiving device that receives positioning signals transmitted from a plurality of positioning satellites as first positioning signals, is set as a position reference station for position measurement, and serves as a base station of a mobile phone network,
the mobile station includes a second receiving device that receives positioning signals transmitted from a plurality of positioning satellites as second positioning signals,
the management station controls switching of the first base station, which serves as the position reference station, in conjunction with handover for communication of the mobile telephone network,
the first receiving device of the first base station transmits, as first positioning information, positioning information that is obtained from the first positioning signal and includes at least a carrier phase integrated value and a pseudo range to the base station position calculation system,
the first base station includes a communication interface for transmitting information for correcting an error in positioning based on the second positioning signal to the mobile station as correction information along with station position information of the first base station;
the mobile station includes a position calculation unit that performs mobile station position calculation processing that calculates a mobile station position, which is a position of the mobile station, using a real-time kinematic method, based on the carrier phase integrated value derived from the second positioning signal and the carrier phase integrated value derived from the station position information of the first base station transmitted from the first base station and the first positioning signal,
the base station position calculation system includes:
a receiving unit that collects the first positioning information transmitted from each of the plurality of first base stations;
a coordinate calculation unit that calculates a position of the first base station in the world geodetic coordinate system based on the first positioning information collected within a predetermined time and obtains the calculated position as accurate position information; and
a transmission unit that transmits the accurate position information of each of the plurality of first base stations, which is calculated by the coordinate calculation unit, to the corresponding first base station.