井下仰角钻孔测井系统

发布时间：2018-02-21 23:07

本文关键词： 测井系统 CAN 协议数据管理　出处：《安徽理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：本文提出了一种新的测井系统的设计方案,整个测井系统分为孔中和孔外两部分。我们将孔中系统的数据采集层和孔外系统的数据传输层分为两个独立层次结构。数据采集层和数据传输层之间的通信部分采用了CAN总线的方式。采用这样的层次结构使得数据采集层的扩展成为了可能,进行一次下井探测就可以同时完成轨迹、自然伽马、电阻率等多项测井任务。屏蔽电缆长距离通信的抗干扰能力同时保证了通信的可靠性；数据传输层与PC主机通信部分引入串口通讯协议。本系统的主要特点：结构合理,方便了组装与维护；本安防爆,具有低功耗的特性；实现有缆和无缆两种方式测井；设计CAN总线应用层协议,实现了多个探管的协同工作,提高了数据传输的实时性和稳定性；编写上位机软件,实现人机交互。经过实验室和矿井现场的检验,本系统适合井下全方位、复杂耦合介质钻孔的探测,尤其适用于仰孔、干孔的测量。系统的测试结果表明,我们所设计的系统稳定、可靠、扩展灵活,具有较好的实用价值,可以很好的满足煤矿企业的需要,值得在煤矿企业推广使用。我们期望通过本测井系统的开发与应用,能够对我国煤田测井系统的发展和煤炭的综合开发与利用做出一些贡献。本文开始首先论述了测井系统的应用背景、意义和一些测井的原理知识；然后介绍了本测井系统的整体构架,对探管控制节点和上位机主控制站的硬件构架作了重点说明。并介绍了本系统的软件设计方案；然后介绍了本系统的硬件设计,重点介绍了测斜探管控制节点和上位机主控板的各功能模块的实现；然后就本测井系统的软件实现做了相关介绍,重点论述了探管控制节点各模块的软件编写。同时介绍了本系统中CAN总线和串口的通讯协议的应用与实现；最后介绍了本系统在矿井现场的进行的实际功能的测试,分析了系统调试过程中存在的问题以及今后工作努力的方向。
[Abstract]:In this paper, a new design scheme of logging system is presented. The whole logging system is divided into two parts: the data acquisition layer in the hole system and the data transmission layer outside the hole. The communication between the data acquisition layer and the data transmission layer is divided into two independent hierarchies. The CAN bus is adopted. This hierarchical structure makes it possible to extend the data collection layer. A single downhole detection can complete the trajectory at the same time, natural gamma, resistivity and other logging tasks. The anti-interference ability of shielded cable long distance communication also ensures the reliability of communication. Serial communication protocol is introduced in the part of communication between data transfer layer and PC host. The main features of the system are as follows: reasonable structure, convenient assembly and maintenance, low power consumption, low power consumption, low power consumption, cable and no cable logging, design of CAN bus application layer protocol, and cooperative work of multiple probe tubes, the main features of the system are as follows: (1) the system has a reasonable structure, which is convenient for assembly and maintenance, and has the characteristics of low power consumption. The real-time and stability of data transmission is improved, and computer software is written to realize man-machine interaction. The system is suitable for borehole detection of all-directional and complex coupling medium, especially for the measurement of upside-hole and dry-hole. The test results of the system show that the system designed is stable and reliable. The expansion is flexible, has the good practical value, may satisfy the coal mine enterprise's need very well, is worth popularizing use in the coal mine enterprise. We hope through this logging system development and the application, It can make some contributions to the development of coalfield logging system and the comprehensive development and utilization of coal in China. At the beginning of this paper, the application background, significance and some knowledge of logging principle of logging system are discussed, and then the whole structure of this logging system is introduced. The hardware structure of the pipe probe control node and the main control station of the upper computer is explained emphatically. The software design scheme of the system is introduced, and the hardware design of the system is introduced. The realization of each function module of the control node and the main control board of the upper computer is introduced emphatically, and the software realization of the logging system is introduced. The software programming of each module of pipe probe control node is discussed emphatically. The application and realization of communication protocol between CAN bus and serial port in this system are introduced. Finally, the actual function test of the system in mine field is introduced. The problems existing in the debugging process of the system and the direction of the future work are analyzed.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD175

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