基于嵌入式的新型井下以太网总线的设计

摘要

This page introduces a new switched Ethernet bus structure which is applicable for downhole logging instrument. This bus structure effectively overcomes the instability caused by share-mode Ethernet bus structure. Meanwhile, the embedded system makes this switched Ethernet bus structure much more simple and stable. This paper also elaborates the hardware designation of the switched Ethernet bus as well as its software designation. This designation completely fulfills nowaday requirements for network log.%介绍一种应用于井下测井仪器上的新型交换式以太网总线结构。该总线结构能有效克服共享式以太网总线所造成的不确定性，并利用嵌入式系统，使该网络总线设计更简洁、更稳定。同时研究交换式以太网总线的硬件及软件设计。经验证，该设计完全满足当下网络化测井的需求。