Mobile reference station for production of correction signals for a differential position-finding device
First Claim
1. A reference station for production of correction signals for a differential position-finding device positioned remotely from the reference station, the reference station comprising:
- a position-finding signal receiver for reception of signals from satellites in a position-finding system;
an electronic processor, which is coupled by a transmission unit to a radio antenna and is designed to receive position signals from the position-finding signal receiver and to derive correction data from these position signals, which correction data can be modulated by the transmission unit onto a radio frequency signal for transmission via the radio antenna to the differential position- finding device; and
the processor further connected to an inertial sensor at the reference station, the processor operable to use signals from the inertial sensor to calculate a variable which is dependent on any position change of the reference station and to produce an error signal when the variable exceeds a predetermined threshold value.
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Accused Products
Abstract
A reference station produces correction signals for a differential position-finding device. The station utilizes a position-finding signal receiver for reception of signals from satellites in a position-finding system and an electronic processor, which is connected by a transmission unit to a radio antenna. The electronic processor is designed to receive position signals from the position-finding signal receiver and to derive correction data from these position signals. The correction data can be modulated by the transmission unit onto a radio frequency signal and can be transmitted via the radio antenna. The processor is connected to an inertial sensor to calculate any position change of the reference station, and to produce an error signal when the calculated magnitude of the position change exceeds a predetermined threshold value.
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Citations
18 Claims
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1. A reference station for production of correction signals for a differential position-finding device positioned remotely from the reference station, the reference station comprising:
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a position-finding signal receiver for reception of signals from satellites in a position-finding system; an electronic processor, which is coupled by a transmission unit to a radio antenna and is designed to receive position signals from the position-finding signal receiver and to derive correction data from these position signals, which correction data can be modulated by the transmission unit onto a radio frequency signal for transmission via the radio antenna to the differential position- finding device; and the processor further connected to an inertial sensor at the reference station, the processor operable to use signals from the inertial sensor to calculate a variable which is dependent on any position change of the reference station and to produce an error signal when the variable exceeds a predetermined threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification