A fusion positioning method and device for real-time relative positioning and precise point positioning
A precision single-point positioning and fusion positioning technology, which is applied in the direction of measuring devices, satellite radio beacon positioning systems, instruments, etc., can solve the problems of limited applicable scenarios and poor reliability of positioning results, and achieve accelerated convergence, high industrial application value, The effect of improving reliability
Active Publication Date: 2022-06-28
QIANXUN SPATIAL INTELLIGENCE INC
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[0005] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a real-time relative positioning and precise point positioning fusion positioning method and device, which are used to solve the problems of limited applicable scenarios and relatively poor reliability of positioning results in the prior art. question
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[0018] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
[0019] Please see attached image. It should be noted that the diagrams provided in this embodiment are only to illustrate the basic concept of the present invention in a schematic way, and the drawings only show the components related to the present invention rather than the number, shape and number of components in actual implementation. For dimension drawing, the type, quantity and proportion of each component can be changed at will in act...
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The present invention provides a real-time relative positioning and precise point positioning fusion positioning method, including: receiving third-party service information and original observation information; using RTK engine to solve the third-party service information and original observation information; using The PPP engine filters the calculation results of the RTK engine, the information provided by the third-party service, and the original observation information. The present invention also provides a real-time relative positioning and precise point positioning fusion positioning device, including: an RTK engine and a PPP engine; the RTK engine is used to solve the double-difference fuzzy from the information provided by the third-party service and the original observation information Degree fixed solution information and the precise coordinates of the rover; the PPP engine is used to filter the double-difference ambiguity fixed solution information calculated by the RTK engine solution and the precise coordinates of the rover, and the information provided by the third-party service and the original observation information. The invention combines the advantages of the network RTK technology and the PPP technology, and greatly reduces the dependence on the network. At the same time, absolute external information is used to verify the parameter estimation of the engine, which improves the reliability of the positioning result.
Description
technical field [0001] The present invention relates to a positioning method and device, in particular to a positioning method and device that comprehensively uses real-time relative positioning and precise single-point positioning fusion positioning technology. Background technique [0002] The real-time relative positioning technology (Real-Time Kinematic, RTK) technology is a differential method of processing the observations of two measuring stations in real time. The network RTK technology is to send differential data to the user through the Internet, and the user uses the received differential data to perform relative positioning, thereby obtaining high-precision location information. This method can only be adapted to a scenario with network connection. The network is used to obtain the corresponding differential data, and the technology cannot be used without network communication. [0003] Precise Point Positioning (PPP) utilizes high-precision satellite orbital cl...
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IPC IPC(8): G01S19/45
CPCG01S19/45
Inventor 董冰全蒋智陈亮
Owner QIANXUN SPATIAL INTELLIGENCE INC