Protocol encoding and decoding method based on protocol model

Abstract

The invention discloses a protocol encoding and decoding method based on a protocol model. The method comprises the steps of: classifying data of protocol contents into data tyep fields so as to form a protocol model consisting of the data type fields; storing the protocol model by the linking modes of sequencing numbers, data types and data lengths of the data type fields; encoding the numerical values of corresponding data type fields according to the sequencing numbers, the data lengths and the data types in the protocol model so as to form protocol frames after protocol encoding; and reverse decoding the data of the corresponding protocol frames according to the data lengths and the data types so as to obtain the protocol frames after the protocol decoding. The method carries out protocol encoding and decoding on the basis of the protocol model, has small code quantity, low redundancy and good reusability during encoding and can carry out program upgrade and maintenance.

Description

technical field [0001] The invention relates to a processing method related to protocols in the field of communication and control, in particular to a codec method of the protocol. Background technique [0002] Protocol encoding and decoding is a process involved in interactive communication and control applications based on protocols. A general protocol definition adopts a byte-oriented form, and data containing various contents is defined as a byte form organized in a protocol frame, and arranged sequentially from front to back in the protocol frame. The traditional protocol encoding and decoding method is to encode and decode the byte order specified in the protocol from front to back in the protocol frame byte by byte, because the code needs to be written byte by byte for the protocol frame during encoding, and for repeated and repeated occurrences in the protocol For bytes with the same format (such as 1-byte unsigned integer, Boolean, etc.), codes still need to be wri...

AI Technical Summary

Problems solved by technology

The traditional protocol encoding and decoding method is to encode and decode the byte order specified in the protocol from front to back in the protocol frame byte by byte, because the code needs to be written byte by byte for the protocol frame during encoding, and for repeated and repeated occurrences in the protocol For bytes with the same format (such as 1-byte unsigned integer, Boolean, etc.), it is still necessary to write code again, so this protocol encoding and decoding method has a large amount of code, high redundancy, and poor reusability

In addition, when the protocol changes, this method of protocol encoding and decoding needs to rewrite and change the code, which is not conducive to code maintenance and update

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