基于无线传输的管道漏水检测仪设计

发布时间：2018-01-26 13:54

本文关键词： 漏水检测仪无线传输 CC2530 DSPIC30F6014A　出处：《内蒙古师范大学》2017年硕士论文　论文类型：学位论文

【摘要】：我国水资源的浪费情况十分严重,供水管道的泄露也会造成浪费。为了避免不必要的浪费,就要对输水管道的漏水检测技术进行研究。本文设计的漏水检测仪采用两个压电传感器探头采集漏水声音信号,并通过各自的无线发送模块把转化后的数字信号发送到主机模块,在主机模块中对两路声音信号进行滤波处理后,用相关算法计算漏水点位置,在LCD中显示。本设计主要包括无线传输模块和主机模块两大部分。无线传输部分采用CC2530为核心芯片,在数据传送之前,先对信号进行A/D转换,转换后的信号通过CC2530的RF无线电发送到主机模块,该模块有接收模块进行数据的接收。一个接收模块两个发送模块组成了一个ZigBee网络,在这个网络中实现数据的接收发送功能。硬件软件设计完成后,用MATLAB模拟漏水信号,并将其导入无线发送模块进行无线传输模块的功能测试。经测试,数据传输成功。主机部分采用DSPIC30F6014A为核心芯片,与接收模块的CC2530用异步串口连接,实现数据的传输。主机完成信号的滤波、相关算法的计算及漏水信号的LCD显示等功能。信号的滤波采用小波滤波加自适应滤波的方法,目的是滤除不同类型的噪声;滤波后两路信号进行相关算法,根据相关函数的最大值可以计算出漏水点的位置;计算出的漏水位置最后通过LCD显示。本文整体结构分为六章:第一章绪论介绍了本课题的研究背景及意义、研究现状、研究内容及组织结构;第二章首先阐述了本设计的总体方案,之后从无线模块和主机模块两个方面提出设计方案,并介绍设计中用到的相关理论;第三章是系统的硬件设计,分为无线发送模块和主机模块两个部分;第四章是系统的软件设计,分为无线传输模块和主机模块两个部分;第五章对两个模块进行了实际测试,测试结果表明本文设计方案可行。第六章对本设计的研究内容进行总结、提出研究的不足、今后研究方向的展望。
[Abstract]:The waste of water resources in our country is very serious, the leakage of water supply pipeline will also cause waste. In order to avoid unnecessary waste. It is necessary to study the leak detection technology of water conveyance pipeline. The leakage detector designed in this paper uses two piezoelectric sensors to collect leakage sound signals. The transformed digital signal is sent to the host module through the respective wireless transmission module. After the two channels of sound signal are filtered in the host module, the location of the leakage point is calculated by the correlation algorithm. Display in LCD. This design mainly includes two parts: wireless transmission module and host module. The wireless transmission part uses CC2530 as the core chip, before the data transfer. First, the signal is converted to A / D, and the converted signal is transmitted to the host module via the RF radio of the CC2530. This module has the receiving module to receive the data. A receiving module and two sending modules constitute a ZigBee network. In this network, the data receiving and transmitting function is realized. After the hardware and software design is completed. The leakage signal is simulated by MATLAB and imported into the wireless transmission module to test the function of the wireless transmission module. The data transmission is successful. The host part uses DSPIC30F6014A as the core chip, and the CC2530 of the receiving module is connected with the asynchronous serial port to realize the data transmission. The host computer completes the signal filtering. The calculation of correlation algorithm and the LCD display of leakage signal are performed. Wavelet filtering and adaptive filtering are used to filter different types of noise. After filtering, the correlation algorithm is used to calculate the location of the leakage point according to the maximum value of the correlation function. The overall structure of this paper is divided into six chapters: the first chapter introduces the research background and significance, research status, research content and organizational structure; In the second chapter, the overall scheme of the design is introduced firstly, then the design scheme is put forward from two aspects of wireless module and host module, and the relevant theories used in the design are introduced. The third chapter is the hardware design of the system, which is divided into wireless transmission module and host module. Chapter 4th is the software design of the system, which is divided into wireless transmission module and host module. In Chapter 5th, two modules are tested, and the results show that the design is feasible. Chapter 6th summarizes the research contents of this design, puts forward the deficiency of the research and the prospect of the future research direction.
【学位授予单位】：内蒙古师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU991.36;TN92;TP212.9

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