Real-time pnt service data traceability method and device

Abstract

The embodiment of the invention discloses a real-time PNT (Positioning ,Navigation and Timing) service data tracing method and device, which can carry out data tracing on a real-time PNT service. Themethod comprises the steps of: S1, acquiring a data source type identifier corresponding to PNT data acquired in the process that a PNT service terminal provides the PNT service, a type identifier ofa data source to which data obtained after each time of data optimization belongs, an algorithm identifier which aims at a result of each time of data optimization and is adopted by each time of datafusion, and a weight occupied by each type of data in the process of each time of data fusion; S2, according to the data acquired in the step S1, interpreting a data source to which the PNT data belongs, the data source to which the data obtained after each time of data optimization belongs and an algorithm adopted by each time of data fusion; and S3, acquiring a service result of the PNT service,and according to the weight occupied by each type of data in the process of each time of data fusion, the service result and an interpretation result, generating data tracing information of the PNT service.

Description

technical field [0001] Embodiments of the present invention relate to the field of PNT (Positioning, Navigation and Timing, positioning navigation and timing), and in particular to a method and device for real-time PNT service data traceability. Background technique [0002] The PNT architecture research is a research work started in the United States in 2005. It aims to integrate various available PNT resources, flexibly combine them with each other for redundancy, realize complementary advantages, make up for the defects and insufficiencies of a single system, and provide higher availability. , integrity, and robust PNT capabilities. The PNT system encourages the use of "multi-phenomenology" and "interchangeable" solutions to develop PNT services. "Multiple phenomenology" refers to a variety of different physical phenomena, such as radio frequency sensors, inertial sensors, and multiple data sources and data transmission paths that utilize those physical phenomena (such a...

AI Technical Summary

Problems solved by technology

[0011] In the existing technology, the annotation method is suitable for small systems, and it is difficult to provide detailed data origin information for fine-grained data in large systems, and requires large storage overhead and database query language support; the inversion method is complex to implement, and users need to provide inversion Setting functions and corresponding verification functions, the calculation time is high; the method of workflow log parsing can only get relatively simple and rough information, which cannot meet the needs of fine-grained data traceability; the method of redesigning the workflow engine is not suitable for the less feasible for the system

[0012] Therefore, the existing data traceability methods are difficult to meet the needs of real-time PNT service data traceability

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