新一代航天电子系统现场总线及其应用

A new generation of fieldbus in aerospace electronic system and its application

摘要:

针对航天电子系统的特殊性，从航天电子系统现场总线技术的发展现状出发，结合现场总线技术的特点，分析了现场总线未来的发展方向。重点介绍了新一代航天电子系统现场总线——有限级联自动重构总线（FCARB）及其在某测量存储系统中的应用。测量存储系统可实现数据并发量10 M，时间同步精度750 ns，系统实时性260 ns。与传统的航天总线相比，新一代现场总线在自动重构、实时性、支持BIT模式、支持仪器总线等方面具有更高的性能，同时对用户更加友好，兼容性更强，能够适应高冲击、高动态等恶劣环境。

Abstract:

In view of the particularity of aerospace electronic system, starting from the development situation of fieldbus technology in aerospace electronic system, combined with the characteristics of fieldbus technology, the future development direction of fieldbus is analyzed. It focuses on the new generation of fieldbus in aerospace electronic system——Finite Cascading Auto-Reconfigurable Bus (FCARB) and its application in measurement storage system. The measurement storage system can achieve data concurrency of 10 M, time synchronization accuracy of 750 ns, and system real-time performance of 260 ns. Compared with the fieldbus in traditional aerospace electronic system, the new generation of fieldbus has higher performance in terms of auto-reconfigurable, real-time performance, support for BIT mode, support for instrument bus, etc. At the same time, it is more user-friendly, more compatible, and can adapt to harsh environments such as high impact and high dynamics.