RTK-GPS survey system
US7482974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2007 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | May 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is directed to an RTK-GPS survey system. The survey system includes a server (9) in an IP-VPN communication network 10 for establishing communications between base stations (16 and 17) that transmit correction data and a rover station 15 that receives the correction data. Each satellite positioning device constituting a base station and a rover station includes at least a satellite positioning unit (11) that receives radio waves from artificial satellites, a communication unit (12) that performs a communication between the satellite positioning device, and a control unit (13) that controls the satellite positioning unit (11) and the communication unit (12). The control unit (13) of the rover station 15 can receive interference information registered in the control unit (13) of each satellite positioning device of the base stations (16 and 17), and select a base station that transmits most appropriate correction data among the plural base stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.