An Extensible Communication Protocol Data Package and Its Communication System

Abstract

An extensible communication protocol data packet disclosed by the present invention includes a 12-byte data header and a variable data body. The data header includes a start bit unit, a version number unit, a command unit, and a request reply packet to distinguish Unit, data packet length unit, data packet error unit and check unit; the variable data body is freely combined by a plurality of fields, and each field includes a field length, a unique field identification number and field content. An extensible communication protocol data packet disclosed by the present invention adds a unique field identification number to multiple fields in the data body, so that each field is uniquely identified, so that the front and rear positions of each field can be adjusted freely, It is suitable for the data instruction package that needs to be processed first, not only has strong scalability, but also has good flexibility.

Description

technical field [0001] The invention relates to a communication field, in particular to an expandable communication protocol data packet. Background technique [0002] In the network application system, the interaction between modules is essential. They exchange data through different transmission methods and different communication protocols to achieve different business functions. In this process, the data communication protocol is like a language, which defines the rules of communication between modules. In terms of granularity, a module can be used as a subsystem in an application system to interact internally with other subsystems in the same application, or as an external interface module of an application system to interact externally with other applications. Then, in such different application scenarios, each module has different requirements for data interaction, and also has different requirements for data transmission security and stability, and the rules for def...

AI Technical Summary

Problems solved by technology

[0003] Currently the most common communication protocol, its data content position is fixed, that is to say, the front and rear positions of each field are in order when the packet is assembled, which makes the flexibility of the data packet poor, and the general communication protocol cannot To achieve data expansion, even if the data can be expanded, the position of adding data will increase sequentially, which is very unreasonable for some data instructions that need to be processed first

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