RTK positioning method and system for multi-source dynamic grid network, terminal and storage medium

A grid and network technology, applied in the field of RTK algorithm positioning, can solve problems such as limited base station network coverage, and achieve the effect of improving coverage

Active Publication Date: 2020-02-18
BEIJING CNTEN SMART TECH CO LTD
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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the present application provides a multi-source dynamic grid network RTK positioning method, system, terminal and storage medium, which solves the problem that the service scope of the dynamic grid network RTK algorithm in the prior art is limited. Issues such as the coverage of the reference station network

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  • RTK positioning method and system for multi-source dynamic grid network, terminal and storage medium
  • RTK positioning method and system for multi-source dynamic grid network, terminal and storage medium
  • RTK positioning method and system for multi-source dynamic grid network, terminal and storage medium

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[0053] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0054] Please refer to figure 1 , figure 1 The multi-source dynamic gridded network RTK positioning method provided by the embodiment of the present application includes:

[0055] S101: Obtain external grid data, and store the external grid data in a local grid data cache, the external grid data including external grid point coordinates and correspo...

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Abstract

The invention provides a multi-source dynamic grid network RTK positioning method and system, a terminal and a storage medium. The method comprises the following steps: obtaining external grid data, storing the external grid data in a local grid data cache, and enabling the external grid data to comprise external grid point coordinates and corresponding virtual reference station service data; extracting general coordinates of the user positioning request, calculating nearby grid points of the user according to the general coordinates, and screening binding grid points of the user from the nearby grid points; and searching the virtual reference station service data bound with the grid points from the grid data cache, and calculating the accurate coordinates of the user according to the virtual reference station service data and the approximate coordinates of the user. According to the method, the dynamic gridding network RTK algorithm and the external grid data can be fused, the coverage range of an existing high-precision positioning service is widened, and meanwhile the application of the external grid data in the current service field is expanded. And a win-win mode of internal high-precision service expansion and external high-precision data industry application diversification is started.

Description

technical field [0001] The present application relates to the technical field of RTK algorithm positioning, in particular to a multi-source dynamic gridded network RTK positioning method, system, terminal and storage medium. Background technique [0002] Virtual reference station technology (Virtual Reference Station, referred to as virtual reference station), also known as virtual reference station technology, is a network real-time kinematic measurement (RTK) technology, by establishing multiple GPS reference stations that form a mesh coverage in a certain area , establish a virtual reference station near the mobile station, calculate the virtual observation value of the virtual reference station according to the actual observation values ​​of the surrounding reference stations, and realize the high-precision positioning of the user station. [0003] The realization process of virtual reference station dynamic grid network RTK algorithm includes three functionally independ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S19/41G01S19/42H04W28/08H04W28/14
CPCG01S19/41G01S19/42H04W64/00H04W64/006
Inventor 滑中豪李宁吴东东梁肖
Owner BEIJING CNTEN SMART TECH CO LTD
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