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Real-time GNSS data processing method and system

A data processing and data flow technology, applied in the field of global satellite navigation, can solve problems such as task processing failure and data loss

Active Publication Date: 2021-08-13
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to address the above technical problems and provide a real-time GNSS data processing method and system that can solve the problem of easy task processing failure and data loss.

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  • Real-time GNSS data processing method and system

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0036] In one embodiment, such as figure 1 As shown, a real-time GNSS data processing method is provided, comprising the following steps:

[0037] Step S220, the task management scheduling server obtains the GNSS data stream from each observation reference station in real time through Epoll single-thread multiplexing, and puts it into the corresponding message queue for processing according to the observation reference station to which each GNSS data stream belongs.

[0038] Among them, the GNSS data stream includes observation data detected by satellites, broadcast ephem...

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Abstract

The invention relates to a real-time GNSS data processing method and system. The method comprises the steps that a task management scheduling server obtains GNSS data streams from observation base stations in real time, and the task management scheduling server determines a resolving server for processing the GNSS data streams according to the load state of the resolving server; the resolving server obtains the GNSS data stream and the last processing result of the observation base station to which the GNSS data stream belongs; the resolving server carries out task processing according to the GNSS data stream and the last processing result; the resolving server monitors task processing; when the monitoring thread receives a feedback task processing completion message, the tracking information cached in the buffer area is emptied; and when the monitoring thread receives a feedback task processing failure message, processing is carried out again until a task processing completion message is obtained, and a GNSS data processing result is output. The task processing is monitored through the monitoring thread, so that the reliability of the task processing is ensured, and the problem of data missing is solved.

Description

technical field [0001] This application relates to the technical field of global satellite navigation, in particular to a real-time GNSS data processing method and system. Background technique [0002] The real-time GNSS data processing method is applied to real-time water vapor inversion, that is, a technology for real-time PPP calculation through real-time observation data of static monitoring points, broadcast ephemeris and SSR corrections to obtain real-time water vapor. Water vapor is one of the most important components of the troposphere, playing a key role in many climates and a range of weather phenomena, albeit a small one. GNSS real-time water vapor retrieval is mainly used for large-scale and high-density real-time water vapor monitoring, and provides reference for meteorological departments. Using modern technology to grasp the temporal and spatial changes of water vapor in the troposphere has an important impact on the vertical stability of the atmospheric str...

Claims

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Application Information

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IPC IPC(8): G06F9/50G06F9/54G01S19/42
CPCG06F9/505G06F9/5066G06F9/5083G06F9/5016G06F9/546G01S19/42G06F2209/548
Inventor 王宇轩艳刘佩琪
Owner HOHAI UNIV
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