Multi-protocol data interaction method applied to information control system of launch vehicle

Abstract

The invention discloses a multi-protocol data interaction method applied to an information control system of a launch vehicle. The method comprises the following steps: step 1: establishing connection of each network segment and a gateway unit correspondingly; step 2, monitoring whether data sent from each network segment exists through the gateway unit, if so, performing step 3, and if not, re-performing step 2; step 3, saving the data sent from each network segment; step 4, identifying a data ID and data flow information, and adjusting the format of the data; step 5, sending the formatted data out according to the data ID and the data flow information; and then returning to step 2. The multi-protocol data interaction method applied to the information control system of the launch vehicle avoids the phenomenon that the multi-network segment data can only be placed on the same network segment, so that the system architecture is clear, the data is free from cross interference, the real-time transmission effect is better, a user is provided with various options like field distributed control and remote control, and the modernization level of the information system of the launch vehicle is improved.

Description

Technical field [0001] The present invention relates to the technical field of launch vehicle informatization control. More specifically, the present invention is a multi-protocol data interaction method applied to launch vehicle informatization control system. Background technique [0002] At present, CAN bus is a serial communication network that supports distributed control mode. Because of its high reliability, low transmission error rate, and convenient application, it has become one of the most widely used field buses. The control field has a wide range of applications. [0003] The main implementation of the conventional launch vehicle information control system is often a single CAN network mode, but a single CAN bus has only one network segment and only supports one CAN bus protocol, which results in multiple network segments data can only be placed on the same network segment The resulting data confusion issues have led to problems such as poor real-time performance, poo...

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Problems solved by technology

[0005] In order to solve the problems of multi-network segment data confusion, poor real-time performance, poor flexibility, and poor reliability existing in the existing launch vehicle information control method, the present invention innovatively proposes a multi-protocol data interaction applied to the launch vehicle information control system method, by setting a unified gateway unit for data reception and forwarding, thereby effectively solving the interaction problem of data transmitted according to different protocols, and greatly improving the real-time performance, flexibility and reliability of the information control of the launching vehicle

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