基于无线传感器网络的机场噪声测试系统研究

发布时间：2019-01-18 08:18

【摘要】：随着我国航空业的迅速发展,机场噪声污染问题日益突出,并逐渐成为目前民航机场所面临的主要环境问题之一,机场噪声的评估也成为对机场进行扩建和改建的重要影响因素。本课题设计了一种基于ZigBee无线传感网络和嵌入式系统相结合的机场噪声测试系统,提出了对机场噪声数据进行采集、传输、分析和处理的完整的解决方案。系统的机场噪声数据采集和传输部分选用了CC2530模块,在此基础上构建了ZigBee网络。文中设计了机场噪声数据传输网络节点的软件,包括任务的添加、无线网络的建立、数据的发送和接收;构建了机场噪声数据采集前端,完成了机场噪声数据的AD转换和编解码过程的软硬件设计。系统的机场噪声数据处理部分选用了基于ARM9的TX2440A开发板。本文完成了U-Boot和嵌入式Linux操作系统内核的移植,制作了文件系统,建立了嵌入式数据库SQLite和图形界面库QtEmbedded。本文利用C语言和SQL语言编写了噪声数据存储程序,实现了利用嵌入式数据库存储机场噪声数据;使用Qt嵌入式图形库设计了嵌入式图形界面,能够直观的显示出所采集到的机场噪声的声强。根据采集到的机场噪声数据,本文利用Surfer软件完成了机场噪声等值线图的绘制。
[Abstract]:With the rapid development of the aviation industry in China, the noise pollution problem of the airport is becoming increasingly prominent, and gradually becoming one of the main environmental problems facing the civil aviation airport. Airport noise evaluation has also become an important factor in the expansion and reconstruction of the airport. In this paper, an airport noise testing system based on ZigBee wireless sensor network and embedded system is designed, and a complete solution of collecting, transmitting, analyzing and processing airport noise data is put forward. In the part of data acquisition and transmission of airport noise, the CC2530 module is selected, and the ZigBee network is constructed on this basis. In this paper, the software of airport noise data transmission network node is designed, including the addition of tasks, the establishment of wireless network, the transmission and reception of data. The front end of airport noise data acquisition is constructed, and the software and hardware design of AD conversion and coding and decoding of airport noise data is completed. In the part of airport noise data processing, the TX2440A development board based on ARM9 is selected. In this paper, the kernel transplantation of U-Boot and embedded Linux operating system is completed, the file system is made, the embedded database SQLite and the graphical interface library QtEmbedded. are established. In this paper, we use C language and SQL language to write the program of noise data storage, and realize the use of embedded database to store airport noise data. The embedded graphic interface is designed by using Qt embedded graphics library, which can display the sound intensity of the collected airport noise intuitively. According to the collected data of airport noise, the Surfer software is used to draw the contour map of airport noise.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：V351;TP212.9;TN929.5

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