USB移动存储在油井检测中的应用

On The Application of USB Mass Storage to the Well-logging

在油井测井作业中,实时测井数据的事后分析和处理对油井作业具有重要的指导意义。为了实现对测井数据的实时保存和方便交换,本文利用USB总线主控芯片SL811HST为油井检测设备扩展了USB主机接口支持,设计了51单片机的USB主机接口电路以及USB总线批量传输协议和支持FAT文件系统的驱动程序,从而实现了油井检测系统对U盘的读写控制功能,大大提高了油井测井设备的便携性。

It is important to analyze and subsequently process real-time data of well-logging. To save and ex- change data of well measuring easily, the interface of USB host is extended into the instrument of well logging by USB host control chip SL811HST. In this research, the interface circuit of USB host, Bulk-only transfer protocol of USB and the driver which supports FAT file system are designed in the system of well measuring based on 8051 MCU. Accordingly the system of well measuring obtains the function of reading and writing U-disk and the flexibility of well logging instrument is improved.