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前一时期,多路传输领域中与航空航天有关的大部分工作都采用命令响应型结构和控制方式。虽然MIL—STD-1553允许动态总线分配,但已公布的有关确定一套准则来利用这个特征的成果却极少。在美国海军航空发展中心(NADC)为先进飞机电气系统(AAES)模拟器研制的航空多路传输系统(AMUX)中,实现了命令响应和查询竞争两种方式。本文主要涉及查询竞争方式,提出了基于输入数据的变动而在各终端间传递总线控制器功能的技术,讨论了在总线效率和数据等待时间方面的改进。并阐述了有关的一些问题及其解决办法。
In the previous period, much of the aerospace-related work in the multiplex transmission area was conducted using command response structures and controls. Although MIL-STD-1553 allows for dynamic bus distribution, the published results on a set of guidelines to take advantage of this feature are minimal. In the Aeronautical Multiplex System (AMUX) developed by the United States Naval Aeronautic Development Center (NADC) for Advanced Aircraft Electrical System (AAES) simulators, both command response and query competition are implemented. This paper mainly involves inquiring about the competition mode, proposes the technology of transferring the bus controller function between the terminals based on the change of the input data, and discusses the improvements in bus efficiency and data waiting time. And explained some related problems and their solutions.