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Satellite navigation receiver and method for switching between real-time kinematic mode and precise positioning mode

A satellite navigation and receiver technology, applied in satellite radio beacon positioning systems, instruments, measuring devices, etc., can solve the problems of vehicle position jump, discontinuity, receiver accuracy reduction, position determination mode, etc.

Active Publication Date: 2018-02-16
DEERE & CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, transitions between RTK mode and pinpoint positioning mode may be abrupt or cause jumps or discontinuities in the position of the receiver or the vehicle associated with the receiver
Also, after an RTK signal is interrupted, corrupted, or lost, in some prior art satellite receivers can only provide accuracy consistent with the lost RTK mode for a maximum period of time (e.g., fifteen minutes)
If the RTK signal does not recover or recover within the maximum amount of time, the receiver may need to resort to a position determination mode with reduced accuracy

Method used

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  • Satellite navigation receiver and method for switching between real-time kinematic mode and precise positioning mode
  • Satellite navigation receiver and method for switching between real-time kinematic mode and precise positioning mode
  • Satellite navigation receiver and method for switching between real-time kinematic mode and precise positioning mode

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Embodiment Construction

[0019] In any of the above referenced figures herein, any block, component, module, multiplexer, memory, data storage, accumulator, data processor, electronic component, oscillator, signal generator or other electronic or software module is connected Any arrows or lines in a can include one or more of the following items: physical paths for electrical signals, physical paths for electromagnetic signals, logical paths for data, one or more data buses, circuit board traces, transmission lines; software Links, calls, communications or data messages between modules, programs, data or components; or transmission or reception of data messages, software instructions, modules, subroutines or components.

[0020] In one embodiment, the systems, methods, and receivers disclosed herein may include computer-implemented systems, methods, or receivers in which one or more data processors communicate via a data bus and one or more of the methods described herein and in the figures. A number ...

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Abstract

A receiver (12 or 30) or method uses an offset vector to provide seamless switching between a real-time kinematic (RTK) mode and a precise positioning mode (e.g., precise point positioning, PPP) mode.An offset module (130) or data processor (159) is arranged to determine an offset between precise position and the RTK position estimate. Upon loss of the RTK signal, switching to a precise positionmode is based on a last available RTK position (e.g., if the precise position mode is converged on a position solution with resolved ambiguities of the carrier phase), wherein the next precise position estimate is compensated by the offset or reference frame bias to avoid a jump or discontinuity in the next precise position estimate.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] Pursuant to 35 U.S.C. §119, this document, including the drawings, claims priority based on US Provisional Application No. 62 / 186,009, filed June 29, 2015, and US Provisional Application No. 62 / 219,880, filed September 17, 2015 rights and the benefit of the filing date, wherein these provisional applications are hereby incorporated by reference. technical field [0003] The present disclosure relates to satellite navigation receivers and methods for switching (seamless or smooth, accurate) between real-time motion mode and pinpoint mode. Background technique [0004] In some prior art, satellite navigation receivers can switch between a real-time kinematic (RTK) mode of position estimation and a precise positioning mode. To operate in RTK mode, the receiver needs a locally available RTK signal encoded with RTK correction data. If the RTK signal is interrupted, damaged or lost, RTK mode may be temporarily unavailable a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/44
CPCG01S19/426G01S19/43G01S19/071G01S19/14G01S19/45G01S19/13G01S19/44
Inventor F·阿迪卡·普拉蒂普塔·李迈克尔·A·塞特泽维邵云峰戴立文 L.
Owner DEERE & CO
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