经典电视剧高清无广告播放网站 ,av免费网站_高清全集在线观看

首頁» 往期文章» 2014» Issue 4» 石油地質(zhì)與地球物理

Petroleum Science >2014,??Issue 4:??508-518 DOI: https://doi.org/10.1007/s12182-014-0366-x

An ARM-based debugging system for multi-pole array acoustic logging tools Open?Access

文章信息

pdf下載
作者：Lu Junqiang,Ju Xiaodong and Men Baiyong
作者單位：

State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China Beijing Key Laboratory of Earth Prospecting and Information Technology, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China Beijing Key Laboratory of Earth Prospecting and Information Technology, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China Beijing Key Laboratory of Earth Prospecting and Information Technology, China University of Petroleum, Beijing 102249, China

投稿時間：2013-12-03
引用方式：Lu, J., Ju, X. & Men, B. Pet. Sci. (2014) 11: 508. https://doi.org/10.1007/s12182-014-0366-x

文章摘要

This paper presents a debugging system for multi-pole array acoustic logging (MPAL) tools. The debugging system proposed in this study can debug the MPAL tool system, sub-system and local electronics. In the test equipment, we have used principal and subordinate structures, and interconnected the host computer and the front-end machine via Ethernet. The front-end machine is based on the ARM7 (advanced reduced instruction set computing (RISC) machine) technique, the processor of which runs an embedded operating system, namely, uClinux OS. We have analyzed the system telecommunication, human-machine interface circuit, transmitter mandrel interface circuit, receiver mandrel interface circuit, and board-level test interface circuit. The software used in the system consists of the embedded
front-computer software and the host application software. We have explained in detail the flow chart of the boot loader in the embedded front-computer software. The host application software is composed of four application subroutines, which match with the functional modules of the system hardware. A net communication program based on the server/client mode is implemented by means of socket programming and multi-thread programming. Test results indicate that the data transmission rate of the system is higher than 1 MB/s, which completely meets the current requirements of the data transmission rate between the tool system and the wireline telemetry device. Application of the debugging system, which includes multiple level test methods, shows that the proposed system can fully meet the test requirements of MPAL at various levels.

關(guān)鍵詞

    Acoustic logging tool, debug system, advanced RISC machines, embedded technique, network interconnection