High-precision positioning Beidou ground-based augmentation system

A ground-based augmentation system and high-precision technology, which is applied in the field of Beidou ground-based augmentation system for high-precision positioning, can solve problems such as inability to complete multi-coordinate systems, broadcast signal positioning accuracy needs to be improved, and coverage is not comprehensive, so as to improve broadcasting capabilities, Improving the level of modernization and the effect of fast service speed

Pending Publication Date: 2022-03-11
苏州市测绘院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] "Easy to use in the sky, good on the ground" is the message of the first chief designer, Academician Sun Jiadong, to the Beidou system. However, the existing Beidou ground-based augmentation system mainly covers urban areas with large populations, and the coverage is not comprehensive. The positioning accuracy of broadcast signals It needs to be improved, and at the same time, it cannot complete the multi-coordinate system and broadcast the source list, so it is necessary to design a high-precision positioning Beidou ground-based augmentation system to solve the above problems

Method used

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  • High-precision positioning Beidou ground-based augmentation system

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Experimental program
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Embodiment 1

[0039] see Figure 1-3 , the present invention provides the following technical solutions: a Beidou ground-based augmentation system for high-precision positioning, including a user terminal 1 and a reference station system 2;

[0040] The user terminal 1 is a user's handheld terminal, and the user can send information through the handheld terminal to obtain the spatial information required by the user;

[0041] The user terminal 1 is connected to the reference station system 2 through the data communication network, providing users with comprehensive spatial information services;

[0042] The reference station system 2 includes an operation reference station network 21, a control server 22, an acquisition server 23 and a data server 24;

[0043] The operation reference station network 21 is connected with the user terminal 1 through the data communication network, receives the information sent by the user, and broadcasts the spatial information required by the user at the same...

Embodiment 2

[0059] The difference of this embodiment compared with embodiment 1 is:

[0060] Specifically, the control server 22 also includes a first instruction input module 221, which is used to input instructions for constructing a quasi-geoid model. The first instruction input module 221 is connected with a quasi-geoid model construction module 2291, which is used to The construction of the model, the quasi-geoid model building module 2291 is connected with the quasi-geoid model generation module 2292, which is used for the generation of the quasi-geoid model, and the quasi-geoid model generation module 2292 is connected with the quasi-geoid model application module 2293, for the application of the quasi-geoid model, the quasi-geoid model application module 2293 is connected with the coordinate transformation module construction module 222, and is used to provide elevation anomalies for the construction of the local coordinate transformation model;

[0061] The quasi-geoid model cons...

Embodiment 3

[0066] The difference of this embodiment compared with embodiment 2 is:

[0067] Specifically, the control server 22 also includes a reference station network type optimization module 226, and the reference station network type optimization module 226 is connected with the data acquisition module 232 for optimizing the existing reference station network type in real time. Optimization module 226 is connected with reference station site comparison module 223, and reference station site comparison module 223 is connected with data collection module 232, is used for comparing the reference station site to be added, and reference station site comparison module 223 is connected with proposed new Increase base station site list generation module 224, be used for the list generation that plans to add base station site, plan to add base station site list generation module 224 to be connected with plan to add base station site list display module 225, be used to plan to add Display of ...

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Abstract

The invention, which belongs to the technical field of the Beidou ground-based augmentation system, discloses a high-precision positioning Beidou ground-based augmentation system comprising a user terminal and a base station system. The user terminal is a user hand-held terminal, and a user can send information through the hand-held terminal to obtain space information required by the user; the user terminal is connected with a base station system through a data communication network and provides omnibearing space information service for a user; according to the method, the coordinate conversion model of each place is constructed through the three-dimensional coordinate system data of the base station and the urban place coordinate system data, when a user needs spatial information service, coordinate conversion acquisition can be performed through the corresponding place coordinate conversion model, the service speed is high, the positioning precision is high, real-time broadcasting of a multi-element coordinate system source list can be realized, and the user experience is improved. And the plane-coordinate system broadcasting capability of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of the Beidou ground-based augmentation system, and in particular relates to a Beidou ground-based augmentation system for high-precision positioning. Background technique [0002] The Beidou satellite navigation system, referred to as Beidou for short, is a global satellite navigation system independently developed and operated by China focusing on the needs of national security and economic and social development. It can provide high-precision, high-speed Reliable positioning, navigation, and timing services are important national space infrastructure. [0003] As an important weapon of a big country deployed in an integrated manner between heaven and earth, Beidou provides important spatio-temporal information guarantee for my country's economic and social development, which can effectively promote the development and transformation of geographic information surveying and mapping work, efficiently assist ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/13G01S19/14G01S19/24
CPCG01S19/13G01S19/14G01S19/243
Inventor 程宝银王敏周剑王斌刘闯
Owner 苏州市测绘院有限责任公司
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