数控测井编码信号处理系统研究与实现

发布时间：2018-03-19 10:24

本文选题：数控测井　切入点：编码　出处：《西安工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：本论文致力于数控测井编码处理系统的研究。在全面、细致地分析了井下仪器回传信号的类型、数据通信的特点,对以脉冲及编码信号形式进行针对性的深入研究,设计了一套基于ARM的嵌入式数控测井编码信号处理系统。本文首先介绍了数控测井系统的技术现状,分析数控系统的构成,确定了一套确实可行的系统整体方案。数控测井编码信号处理系统以微控制器LPC2294为核心,嵌入式实时操作系统μC/OS-Ⅱ为支撑,合理划分了编码信号调理、编码信号转换、深度信号转换、CAN通信及LCD显示的硬件功能模块,有机地结合相应的四个软件任务模块,实现了数控系统的编码信号处理功能,满足生产测井对编码测井信号处理要求,有效提升系统信号处理的实时性、数据传输的可靠性。本文的最后,搭建了数控测井编码信号处理系统的实物平台,利用电缆模拟器及多臂井径测井仪及相关传感器,完成了深度信号的测量、编码信号的解码、数据显示及CAN数据通信。通过调试结果表明,系统实现了对深度脉冲信号和编码信号的采集和解码处理,基本达到了系统的设计目的。
[Abstract]:This paper is committed to logging encoding processing system. In a comprehensive, detailed analysis of the types of downhole return signals, characteristics of the data communication, the pulse signal form and encoding for in-depth research, design a set of control logging signal processing system embedded encoding number based on ARM in this paper. The technical status of the digital logging system, analyzed the structure of CNC system, establishes a set of feasible solutions. Digital control logging system encoding signal processing system based on MCU LPC2294, embedded real-time operating system C/OS- II as the support, a reasonable division of the encoding signal conditioning, signal encoding depth conversion, signal conversion, hardware the function module of CAN communication and LCD display, the organic combination of the four task of software modules, to achieve the encoding signal processing function of CNC system can meet the students. Production logging for encoding the logging signal processing requirements, effectively improve the real-time signal processing system, the reliability of data transmission. At the end of this paper, set up the physical platform of digital logging encoding signal processing system, using cable simulator and multi arm caliper logging tool and related sensors, completed the depth measurement signal, encoding and decoding signal, data display and data communication in CAN. The debugging results show that the system realizes the acquisition and decoding depth of pulse signal and signal encoding, the basic design to achieve the objective of the system.

【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：P631.81;TN911.7

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