星载数据管理系统OBDH中的数据总线

The Data Bus in the OBDH (On Board Data Hnadling)

本文讨论欧洲空间局ESA星载数据管理系统OBDH(On-Board Data Handling)数据总线的系统组成和功能,详细分析了总线的通信协议,在此基础上从系统角度讨论了总线关键部件——中央控制器CT、远程终端RT和远程终端接口RT1的结构和设计。

The Composition and function of ESA OBDH (On-Board data Handling) Sdatabus is dicussed in this paper, as well as the communication protocol, Then, the structure and the design of the key units——CT (central terminal), RT (remote terminal) and RTI(remote terminat interface) are presented systematically.