發(fā)布時間：2018-01-26 13:54

  本文關鍵詞： 漏水檢測儀 無線傳輸 CC2530 DSPIC30F6014A　出處：《內(nèi)蒙古師范大學》2017年碩士論文　論文類型：學位論文

【摘要】：我國水資源的浪費情況十分嚴重,供水管道的泄露也會造成浪費。為了避免不必要的浪費,就要對輸水管道的漏水檢測技術(shù)進行研究。本文設計的漏水檢測儀采用兩個壓電傳感器探頭采集漏水聲音信號,并通過各自的無線發(fā)送模塊把轉(zhuǎn)化后的數(shù)字信號發(fā)送到主機模塊,在主機模塊中對兩路聲音信號進行濾波處理后,用相關算法計算漏水點位置,在LCD中顯示。本設計主要包括無線傳輸模塊和主機模塊兩大部分。無線傳輸部分采用CC2530為核心芯片,在數(shù)據(jù)傳送之前,先對信號進行A/D轉(zhuǎn)換,轉(zhuǎn)換后的信號通過CC2530的RF無線電發(fā)送到主機模塊,該模塊有接收模塊進行數(shù)據(jù)的接收。一個接收模塊兩個發(fā)送模塊組成了一個ZigBee網(wǎng)絡,在這個網(wǎng)絡中實現(xiàn)數(shù)據(jù)的接收發(fā)送功能。硬件軟件設計完成后,用MATLAB模擬漏水信號,并將其導入無線發(fā)送模塊進行無線傳輸模塊的功能測試。經(jīng)測試,數(shù)據(jù)傳輸成功。主機部分采用DSPIC30F6014A為核心芯片,與接收模塊的CC2530用異步串口連接,實現(xiàn)數(shù)據(jù)的傳輸。主機完成信號的濾波、相關算法的計算及漏水信號的LCD顯示等功能。信號的濾波采用小波濾波加自適應濾波的方法,目的是濾除不同類型的噪聲;濾波后兩路信號進行相關算法,根據(jù)相關函數(shù)的最大值可以計算出漏水點的位置;計算出的漏水位置最后通過LCD顯示。本文整體結(jié)構(gòu)分為六章:第一章緒論介紹了本課題的研究背景及意義、研究現(xiàn)狀、研究內(nèi)容及組織結(jié)構(gòu);第二章首先闡述了本設計的總體方案,之后從無線模塊和主機模塊兩個方面提出設計方案,并介紹設計中用到的相關理論;第三章是系統(tǒng)的硬件設計,分為無線發(fā)送模塊和主機模塊兩個部分;第四章是系統(tǒng)的軟件設計,分為無線傳輸模塊和主機模塊兩個部分;第五章對兩個模塊進行了實際測試,測試結(jié)果表明本文設計方案可行。第六章對本設計的研究內(nèi)容進行總結(jié)、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.
【學位授予單位】：內(nèi)蒙古師范大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU991.36;TN92;TP212.9

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