GNSS message conversion verification method

A message and verification platform technology, applied in the field of message verification, can solve the problems of inconsistent data field standards, inconsistent data scope, poor compatibility in real-time, offline data processing, etc.

Active Publication Date: 2020-10-30
QIANXUN SPATIAL INTELLIGENCE INC
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] 1. The verification method is not uniform. For example, if you want to convert the CMR message to RTCM, after the conversion, verify whether the converted data is correct from the data error of the RTCM protocol. If you want to convert to the Novtel protocol again, you must follow the data of the Novtel protocol. Field standards are used for verification, and the data field standards of each protocol are inconsistent, which increases the complexity of verification
[0007] 2. The range of data is not uniform. In the existing technical solutions, in the data fields of each type of message, the range and meaning of each field are inconsistent
[0008] 3. Post-processing may be required after message conversion for verification
[0009] 4. Poor compatibility with real-time and offline data processing
The current verification method is basically only suitable for offline data

Method used

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  • GNSS message conversion verification method

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Embodiment Construction

[0035] The invention provides a flexible GNSS message conversion verification method. Hereinafter, the present invention will be further described in conjunction with the drawings and embodiments.

[0036] figure 1 It is a flowchart of verification of GNSS message content conversion results of the present invention, and specific message format detection, content conversion, and data verification can be unified into a unified message verification platform. Specifically divided into the following steps:

[0037] Step S1, to verify messages A and B, both messages A and B are input to the unified message verification platform.

[0038] Step S2, the unified message verification platform detects the source of the message output, if it is an offline file, it will be directly handed over to the subsequent steps for processing; if it is a real-time data stream, load the data conversion module, write the real-time data stream into the file, and then use files for comparison.

[0039...

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Abstract

The invention provides a method for GNSS message conversion verification, which is characterized in that it comprises the following steps: Step S1, inputting the message to the unified message verification platform; Step S2, the unified message verification platform detects the source of the message output, and performs corresponding processing ; Step S3, the unified message verification platform detects whether it supports message verification; step S4, if the unified message verification platform supports message verification, then detects whether the input file conforms to the format of the message, and checks the integrity of the content; step S5 After the verification of the integrity of the content is passed, the message is converted into a unified message format; step S6, the intermediate data format obtained by the message conversion is verified, and the verification result is output. The invention can eliminate the difference of each message, improve the verification accuracy and ease of use, and can verify both offline file data and real-time streaming data.

Description

technical field [0001] The invention relates to the technical field of message verification, in particular to a method for GNSS message conversion verification. Background technique [0002] With the development and popularization of satellite positioning technology, communication technology and computer network technology, the public's demand for location-based services is becoming more and more important. As a convenient method to significantly improve positioning accuracy, differential positioning has been widely accepted by the public. Various manufacturers are also promoting their own differential positioning technology and terminal equipment. Differential positioning technology needs to broadcast differential positioning messages to terminal devices. Differential messages currently have internationally accepted codes, such as RTCM (RTCM Radio Technical Commission for Maritime Services, International Radio Technical Commission for Maritime Services), but each manufactu...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L29/08H04L29/06
CPCH04L63/12H04L67/565
Inventor张达张体良谢志军
OwnerQIANXUN SPATIAL INTELLIGENCE INC