云测试网络中数字噪声探头技术研究

云噪声测试网络可检测区域声音污染形态,将噪声值和噪声分布等信息发送至云服务器等处,协助有关部门实现噪声信息化监测。网络的底层,即物理层为噪声监测数字探头,是关键技术之一。文章详细描述了基于DSP 5509数字声级计技术,选用IIR数字滤波器实现噪声的A计权和C计权滤波,嵌入Zigbee无线通讯接口实现信息互联。实验表明,该数字声级计探头能够实时采集监测20 Hz~20 k Hz频域范围、40 d B~100 d B幅值动态范围的噪声信号,误差可控制在±1 d B范围之内。...

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Bibliographic Details
Published in电测与仪表 Vol. 53; no. 9; pp. 23 - 29
Main Author 吴仲华 李俊明 路洋
Format Journal Article
LanguageChinese
Published 中石化胜利石油工程公司钻井工艺研究院,山东东营,257017%中国电工仪器仪表质量监督检验中心,哈尔滨,150028%哈尔滨工业大学电气工程及自动化学院,哈尔滨,150001 2016
Subjects
DSP
云网络
噪声测量
DSP
噪声测量
云网络
noise measurement
cloud web
Online AccessGet full text
ISSN1001-1390

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Summary:云噪声测试网络可检测区域声音污染形态,将噪声值和噪声分布等信息发送至云服务器等处,协助有关部门实现噪声信息化监测。网络的底层,即物理层为噪声监测数字探头,是关键技术之一。文章详细描述了基于DSP 5509数字声级计技术,选用IIR数字滤波器实现噪声的A计权和C计权滤波,嵌入Zigbee无线通讯接口实现信息互联。实验表明,该数字声级计探头能够实时采集监测20 Hz~20 k Hz频域范围、40 d B~100 d B幅值动态范围的噪声信号,误差可控制在±1 d B范围之内。
Bibliography:23-1202/TH
noise measurement, DSP, cloud web
Wu Zhonghua , Li Junming, Lu Yang （1. Drilling Technology Research Institute, Sinopec Oilfield Service Shengli Corporation, Dongying 257017, Shandong, China. 2. China Quality Supervision and Inspection for Electrical Measuring Instruments, Harbin 150028, China. 3. School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China）
Cloud web of audio noise detection provides the local polluted information and sends the noise values and their distribution to sever of cloud web center or other websites. It serves Environmental Protection Authority for noise monitoring in digital and intelligent ways. Bottom layer of the web, namely physical layer, is the noise detection digit- al probe and is one of the major techniques. This paper describes a DSP5509 based digital noise measurement research n detail, in which IIR filter is developed to make A weighting or C weighting filter. Zigbee protocol WSN inter- face is embedded to realize inform
ISSN:1001-1390