Instruction filtering method and device for specifications of ARINC661

Abstract

The invention discloses an instruction filtering method and device for specifications of ARINC661. The instruction filtering method comprises the following steps of designing a filtering expression; explaining the filtering expression; executing filtering. According to the instruction filtering method, characteristic attributes of ARINC661 instruction blocks are extracted as key words for designing filtering rules, and the filtering expression is designed to combine the filtering rules. On the method for executing filtering, according to the method, a tree-shaped structure is designed for storing the filtering rules, a method for calculating a filtering result is designed based on the tree-shaped structure, and good executing efficiency is realized. The device provided by the embodiment of the invention comprises a filtering-condition configuration module, a filtering-rule-base module, a filtering-expression interpretive module and a filtering execution module, wherein the filtering-condition configuration module is used for assisting a user to design out the filtering expression flexibly; the filtering-rule-base module is used for storing the historical filtering expression; and the filtering-expression explaining module and the filtering execution module are used for executing interpretation of the filtering expression and executing the filtering method.

Description

technical field [0001] The invention relates to an instruction filtering method and device for the ARINC661 standard, in particular to a data processing technology in a cockpit display system based on the ARINC661 standard, which belongs to the data bus processing technology in the aviation field. Background technique [0002] With the rapid development of the integrated avionics system, the cockpit display system, which is an important part of the avionics system, is also developing towards an open architecture. In order to adapt to this development trend, the ARINC661 specification came into being and developed rapidly. This specification isolates the logic function of UA (User Applications, user application) from the screen generation function of CDS (Cockpit Display System, cockpit display system), and provides a standardized interface for the two. [0003] The screen display content of CDS is determined by DF (Definition File, definition file). The DF file is defined by...

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Problems solved by technology

[0004] At present, there is no special research on the instruction filtering method based on the ARINC661 specification. From the perspective of engineering application, the present invention designs an instruction filtering method and device for the ARINC661 specification, which is convenient for users to design filter expressions flexibly, and has high execution efficiency

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