基于485总线的无线通信低时延流控技术研究  

Research on low latency data flow control technology of wire-less communication based on 485 bus

作　　者：刘明洋 张剑[1] 吴桐 王思洋 张昊亮 LIU Mingyang;ZHANG Jian;WU Tong;WANG Siyang;ZHANG Haoliang(China Academy of Space Technology(Xi’an),Xi’an 710000,China)

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2021年第5期80-87,共8页Space Electronic Technology

基　　金：国家重点实验室稳定支持基金(编号:2020SSFNKLSMT-10)。

摘　　要：在航天器内部,短距离无线传输作为传统有线传输的替代,正得到越来越多的关注。面向航天器设计的工程实践,通过对航天器短距离无线传输应用背景的分析,总结出三种常见的应用场景。针对广泛应用的RS485总线系统,分析了其转型为无线RS485系统所需要考虑的设计要素,提出了基于RS485总线的无线通信系统设计方案以及具体的低时延流控技术。该技术可以高可靠性地实现对有线RS485通信系统的“无感”替代,实现低时延的无线传输,扩展RS485总线的应用场景。In the interior of spacecraft,short-distance wireless transmission,as an alternative to traditional wired transmission,is attracting more and more attention.This paper is aimed at the engineering practice of spacecraft design.Through the analysis of the application background of spacecraft short-distance wireless transmission,three common application scenarios are summarized.In particular,for the widely used RS485 bus system,the design elements that need to be considered when it transforms into wireless RS485 system are analyzed.The design scheme of wireless communication system based on RS485 bus and the specific low latency data flow control technology are proposed.This technology can replace the wired RS485 communication system reliably,realize wireless transmission with low delay and expand application scenarios of RS485 bus.

关 键 词：RS485总线 低时延 流控 无线通信 

分 类 号：TN927[电子电信—通信与信息系统]