基于LCM的分布式嵌入式消息通信中间件设计  

Design of Distributed Embedded Message Communication Middleware Based on LCM

作　　者：刘刚 

机构地区：[1]江苏自动化研究所,江苏连云港222006

出　　处：《工业控制计算机》2024年第8期13-15,18,共4页Industrial Control Computer

摘　　要：为了满足工业控制计算机在野外作业装备的分布式嵌入式系统任务迁移需求,设计了一种网络通信中间件方案。基于LCM的发布订阅模式框架以及中心节点的消息通信中间件,从而强化了LCMLite的多线程处理能力和消息通信中间件功能。该中间件能够促进任务迁移过程中各参与方之间的互动流程,并解决应用任务迁移后的网络通信续接和消息丢失问题。据测试结果,对于需要处理大量消息流量的场景,该网络通信中间件在消息传输方面的时间消耗非常少。In order to meet the task migration requirements of distributed embedded systems for industrial control computers in field operation equipment,a network communication middleware solution is designed in this paper.It is based on the publish subscribe mode framework of LCM and the message communication middleware of the central node,thereby strengthening the multithreading processing ability and message communication middleware function of LCMLite.This middleware can promote the interaction process between various parties involved in task migration,and solve the problems of network communication continuity and message loss after application task migration.According to the test results,for scenarios that require processing a large amount of message traffic,the network communication middleware consumes very little time in message transmission.

关 键 词：分布式嵌入式系统 任务迁移 LCM 发布订阅 消息通信中间件 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]