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How to use the results and systems of multi -level intact monitoring results

An integrity monitoring and integrity technology, applied in the direction of radio wave measurement system, satellite radio beacon positioning system, measurement device, etc., can solve the problems of not being suitable for handling jump input, positioning result jump, etc., to weaken the jump , smooth positioning results, and accurate comparison results

Active Publication Date: 2022-08-05
QIANXUN SPATIAL INTELLIGENCE INC
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

For example, the first-level monitoring result of a certain satellite is "available", while the second-level monitoring result is "warning". The satellite will be used for positioning calculation during the period of time, and the satellite will not be used during the time when the second-level monitoring results are effective, resulting in a jump in the positioning result
Also, most automatic control systems are not well suited to handle transition inputs

Method used

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  • How to use the results and systems of multi -level intact monitoring results
  • How to use the results and systems of multi -level intact monitoring results

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Embodiment Construction

[0050] In the following description, numerous technical details are set forth in order to provide the reader with a better understanding of the present application. However, those of ordinary skill in the art can understand that even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can be realized.

[0051] Explanation of some concepts:

[0052] Global Navigation Satellite System (GNSS): This system determines the user's location through ranging signals and broadcast messages broadcast by satellites. GNSS that have been put into use include GPS in the United States, GLONASS in Russia, Galileo in Europe, and Beidou satellite navigation in China.

[0053] Integrity: When the error exceeds the alarm threshold, the Integrity service has the ability to issue an alarm to the user in a timely manner. Integrity includes three parts: alarm threshold, alarm time and inte...

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Abstract

The present application relates to positioning technology, and discloses a method and system for using multi-level integrity monitoring results. The method includes: obtaining the continuous multi-level integrity monitoring results of a certain satellite or a certain correction number, and for any two consecutive integrity monitoring results, if the integrity monitoring result of the latter level is "alarm", and the former level is in good condition If the integrity monitoring result is not "alarm", the satellite or the correction number after the weight reduction is used to participate in the positioning calculation within the effective time of the next-level integrity monitoring result. The embodiments of the present application effectively weaken the jumping problem of the positioning result, which is beneficial to the application of the positioning result in the field of automatic control.

Description

technical field [0001] The present application relates to positioning technology, in particular to the technology of using multi-level integrity monitoring results. Background technique [0002] Users of the GNSS integrity service receive the monitoring results broadcast by the system to determine whether a certain correction or whether a certain satellite can participate in the positioning calculation. If it is determined that a certain correction number or the monitoring result of a certain satellite is an "alarm", the user generally cannot use the correction number or the satellite to participate in the positioning calculation. [0003] High-precision and high-integrity services generally use multi-level integrity monitoring. The algorithms used by each monitoring module are heterogeneous, and the time epochs of input data are also different. Due to these two differences, there are currently contradictory monitoring results at all levels. For example, the first-level mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/42G01S19/40G01S19/20
CPCG01S19/42G01S19/40G01S19/20
Inventor 陈杰
Owner QIANXUN SPATIAL INTELLIGENCE INC
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