基于移动终端和3G网络的分布式噪声监测系统

Distributed Noise Monitoring System Based on Mobile Terminal and 3rd Generation Mobile Network

针对噪声污染具有时间上的突发性和空间上的不连续性,设计了由移动终端、外接传声器、移动网络、接收终端组成的分布式噪声网络检测系统。移动终端和外接传声器组成数据采集节点,采集节点采集实时的噪声分贝值,利用移动终端的定位技术,定位到采集节点的当前位置,用移动终端的3G移动网络与接收终端连接,将噪声信息和位置信息打包发送到接收终端,接收终端负责接收各个节点的噪声信息和位置信息,利用LBS的Web技术,将数据以二维地图的方式展示,并且作为服务器提供信息查询服务。实验证明,系统稳定、可靠、成本低,为城市噪声测试提供了一种解决方案。

In order to solve the noise monitoring problems in the city, a multi-nodes-distributed noise monitoring system composed of mobile terminal, external microphone, mobile network and receiving terminal was designed. Firstly, mobile terminal and external microphone make up the data acquisition node to acquire the realtime noise data, and get the current position using locating technology. Secondly, the mobile terminal is connected with the receiving terminal through 3rd generation mobile network, the location information together with noise information are sent to the receiving terminal. Thirdly, the receiving terminal displays the data in a twodimension map by using LBS Web technology, and offers information inquiry service as a server. Experiments show that this system is stable, reliable, low-cost, and can be a solution to city noise measurement.