基于时间同步1553B总线通信协议的总线监视与仿真软件设计

Bus Monitor and Simulation Software Design Based on Time Synchronization 1553B communication protocol

摘要:

ECSS（European Cooperation for Space Standardization，欧洲空间标准化组织）在美军标的基础上提出了一种基于时间同步的1553B总线通信协议，提供了更为上层的接口服务。目前商用的1553B总线仿真软件由于不能模拟上层协议，因而无法满足使用这种通信协议的型号仿真测试需求。对基于时间同步的1553B总线通信协议中的五种服务进行了详细的分析，总结了满足此协议要求的RT（Remote Terminal，总线终端）行为。在此基础上，提出了满足基于时间同步的1553B总线通信协议的RT仿真需求，通过商用总线仿真卡进行二次开发，实现了一种基于时间同步1553B总线通信协议的总线监视与仿真软件，在提供对1553B总线进行总线监视、数据存档、回放以及查询等基本功能的基础上，实现了满足时间同步1553B总线通信协议要求的RT仿真。该软件已在多个型号中得到了应用。

Abstract:

A communication protocol for MIL-STD-1553B data bus based on the time synchronization is proposed by ECSS，which provides upper layer interface services. Since the commercial 1553B bus simulation software does not supports these upper layer services, it can’t satisfy the bus function test needs of spacecraft applying such protocol The five kinds of services offered by the time synchronization communication protocol are analyzed concretely, and the typical RT action under this protocol is defined. Based on this, the RT simulation demands based on the time synchronization communication protocol is brought up in this article and the bus test software supporting services proposed by the time synchronization communication protocol is designed accordingly by making a secondary development of the commercial software, which provides basic functions such as 1553B bus monitoring, data filing, replaying and data enquiry, as well as RT simulation under the time synchronization communication protocol. This software introduced in this article has been applied in multiple spacecrafts.