Satellite position measurement system
AssigneesMitsui & Co., Ltd., Topcon Corporation
InventorsKoji Miyasaka, Masakazu Mori, Kazuyuki Sakaki, Kenichi Takasu, Yuji Kobayashi
Life of this patent
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Abstract
A GPS positioning system that has: at least one mobile station to measure a positional coordinate by receiving radio wave from a satellite; a plurality of fixed stations that have predetermined positional coordinates and receive radio wave from the satellite; and arithmetic processing means, which is connected with at least one mobile station and a plurality of fixed stations via communication, and that transmits correction data suitable for the mobile station to the mobile station based on positioning data transmitted from the mobile station.
Claims8
A GPS positioning system, comprising:
- at least one mobile station to measure a positional coordinate by receiving radio wave from a satellite;
- a plurality of fixed stations that have predetermined positional coordinates and receive radio wave from the satellite;
- and
- arithmetic processing means, which is connected with at least one mobile station and a plurality of the fixed stations via communication, and that transmits correction data suitable for the mobile station to the mobile station based on positioning data transmitted from the mobile station.
A data server for GPS positioning, comprising:
- a communication interface that receives positioning data from a mobile station whose positional coordinate is measurable by receiving radio wave from a satellite;
- a line interface whose positional coordinate is fixed at a known point, and that receives positioning data from a plurality of fixed stations that receive radio wave from the satellite;
- storage means that stores data regarding correction;
- and
- arithmetic processing means that reads out suitable correction data from the storage means and transmits the correction data to the mobile station based on the positioning data received via the communication interface.
Dependencies are inferred from the claim text.