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Network RTK positioning quality evaluation method and device and network RTK positioning system

A positioning quality and network technology, applied in the field of satellite positioning, can solve the problem of low reliability of data transmission, and achieve the effect of improving the efficiency of data processing and evaluation

Inactive Publication Date: 2020-04-17
QIANXUN SPATIAL INTELLIGENCE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a network RTK positioning quality evaluation method and device, and a network RTK positioning system, aiming to solve the problem in the prior art that data transmission reliability is low due to the need to retransmit data when the transmitted data is abnormal

Method used

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  • Network RTK positioning quality evaluation method and device and network RTK positioning system
  • Network RTK positioning quality evaluation method and device and network RTK positioning system
  • Network RTK positioning quality evaluation method and device and network RTK positioning system

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Embodiment 1

[0050] figure 1 A flow chart of a method for evaluating network RTK positioning quality provided by the first embodiment of the present invention is shown, the method includes:

[0051] Step S1, obtaining current positioning result data from the first receiver and the second receiver respectively;

[0052]Specifically, the current positioning result data are respectively obtained from the set first receiver and the second receiver, and the positioning result data is passed through the receiver PVT (Position / Velocity / Time, which means that the The GNSS data of the position point, the obtained corresponding position coordinates, speed value and time information) positioning result data after solving, preferably NMEA data, including the positioning coordinates and status data of the receiver; wherein, the first receiver is connected to The first antenna, the second receiver is connected to the second antenna, the first antenna and the second antenna are not in the same coordinat...

Embodiment 2

[0087] Such as Figure 4 As shown, it is a structural diagram of an evaluation device for network RTK positioning quality provided by the second embodiment of the present invention. The evaluation device includes: a first acquisition unit 1, a calculation unit 2 connected to the first acquisition unit 1, and a calculation unit 2 connected evaluation units 3 in which:

[0088] The first obtaining unit 1 is used to obtain current positioning result data from the first receiver and the second receiver respectively;

[0089] Specifically, the current positioning result data are respectively obtained from the set first receiver and the second receiver, the positioning result data is the positioning result data after the receiver PVT solution, preferably NMEA data, including the receiver Positioning coordinates and state data; wherein, the first receiver is connected to the first antenna, the second receiver is connected to the second antenna, and the first antenna and the second a...

Embodiment 3

[0122] Such as Figure 5 As shown, it is a structural diagram of a positioning system provided by the third embodiment of the present invention. The positioning system specifically includes, in addition to the positioning unit 50, it may also include: a first antenna 51 and a second antenna arranged on a mobile carrier 52. The first receiver 53 connected to the first antenna 51, the second receiver 54 connected to the second antenna 52, and the network RTK positioning quality all connected to the first receiver 51 and the second receiver 52 The evaluation device 55, the specific structure, working principle and technical effects of the evaluation device 55 are basically consistent with the description of the second embodiment above, and will not be repeated here. The first antenna 51 is connected with the first receiver 53 through the feeder, and the second antenna 52 is connected with the second receiver 54 through the feeder. The first antenna 51 and the second antenna 52 ar...

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Abstract

The method is suitable for the technical field of positioning. The invention provides a network RTK positioning quality evaluation method and device and a positioning system. The evaluation method comprises the steps of acquiring current positioning result data from a first receiver and a second receiver respectively, wherein the first receiver is connected with a first antenna, the second receiver is connected with a second antenna, and the first antenna and the second antenna are not located in the same coordinate; calculating an estimated distance between the positions of the first antennaand the second antenna based on the obtained positioning result data; and evaluating the network RTK positioning quality based on the absolute distance between the positions of the first antenna and the second antenna and the estimated distance, and obtaining an evaluation result. According to the invention, the network RTK positioning quality is dynamically evaluated based on the absolute distance between the positions of the first antenna and the second antenna and the current estimated distance, and the data processing and evaluation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of satellite positioning, in particular to a network RTK positioning quality evaluation method and device, and a network RTK positioning system. Background technique [0002] Network RTK (Real-timekinematic, carrier phase difference technology), also known as base station RTK, is a new technology established on the basis of conventional RTK and differential GPS in recent years. The final positioning effect of network RTK differential positioning technology (mainly fixed rate, positioning accuracy, etc.) involves many influencing factors, including differential (RTCM) data quality, original observation data of user terminals, terminal hardware / algorithm performance, communication network quality, etc., among which One or more faulty ones can result in suboptimal final positioning. [0003] In addition, RTKlib, TEQC and other open source precision positioning algorithms and data analysis tools are mainly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24H04L29/08G01S19/43G01S19/41G01S19/23
CPCG01S19/235G01S19/41G01S19/43H04L41/14H04L43/062H04L67/10
Inventor 浮玉涛
Owner QIANXUN SPATIAL INTELLIGENCE INC
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