A general data decoding method based on arinc429 bus communication

A technology of general data and decoding method, applied in the field of data decoding and data decoding based on ARINC429 bus communication, can solve the problems of error-prone, tedious and cumbersome programs, difficult to change, etc., and achieve the effect of high reliability and good expansibility

Active Publication Date: 2021-01-26
JIANGXI HONGDU AVIATION IND GRP
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Problems solved by technology

If it is realized by direct shifting method, the program will be lengthy and cumbersome, difficult to change and error-prone in implementation

Method used

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  • A general data decoding method based on arinc429 bus communication
  • A general data decoding method based on arinc429 bus communication

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0026] see figure 1 , a kind of general data decoding method based on ARINC429 bus communication of the present invention, comprises the following steps:

[0027] 1) Represent the information of the information identifier, effective data length and scale in a structure;

[0028] 2) Establish a communication structure of each physical quantity according to the information of each physical quantity to be sent;

[0029] 3) According to the total length of the established communication structure byte, divide by the structure byte length of a single physical quantity, and calculate the total number of physical quantities to be resolved;

[0030] 4) Collect the data in the ARINC429 bus buffer, judge whether the data is correct according to the parity bit, if correct then enter step 5), otherwise terminate the d...

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Abstract

The invention relates to a general data decoding method based on ARINC429 bus communication, which includes establishing communication structures of various physical quantities, calculating the total number of physical quantities to be resolved, collecting data in the ARINC429 bus cache, calculating information identifiers, and finding effective The steps of data length and scale, converting the binary number of the data bits into the corresponding decimal data, and decoding to obtain the physical quantity. The decoding method of the invention has the characteristics of flexibility, versatility, good expansibility and high reliability.

Description

technical field [0001] The invention belongs to the communication field, relates to a data decoding method, and is mainly aimed at data decoding based on ARINC429 bus communication. Background technique [0002] ARINC429 communication is carried out in units of 4 bytes. The effective bits of character transmission are 32 bits, among which: the lower 8 bits are the information identifier, bit 32 is the parity bit, which is used for error detection and correction, bits 9 and 10 are the destination / source receiving identification code, bits 11-29 For the data bits to be transmitted, bits 30 and 31 are the symbol / state matrix. [0003] The data types transmitted by ARINC429 include BNR data, BCD data and discrete data. BNR data and discrete data represent data in binary and can be directly transmitted. When the data type transmitted by ARINC429 is BCD data, that is, decimal numbers expressed in binary, the data area is divided into four bits as a unit from low bit to high bit...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L1/00G06F13/42
CPCG06F13/42H04L1/0045H04L1/0061
Inventor姜芳芳夏云凡吴克松江海雷芦勤桑刘林林廖峰张望成周平平张俊罗海鹰潘新平樊金明周晓波张洪宇罗兵
OwnerJIANGXI HONGDU AVIATION IND GRP