Acoustic noise monitoring for smart cities

人类活动和机械设备产生的噪声污染城市环境，并对健康产生一系列影响。暴露于高水平的噪音可能会导致烦恼、高血压、睡眠模式紊乱和听力受损。相比之下，较低的噪音水平与工作场所的福祉和绩效改善有关。此外，在医院和学校，良好、安静的空间也很重要。传统的室内噪声测量在低强度下不能提供精细的时间分辨率或高精度，不能收集 ** 频谱内容，并且不能同时测量多个位置。本计画将发展一个以自主式感测器节点为基础的噪音监测系统。该系统将是可扩展的，每个 ** 节点将运行至少一个月而无需充电。人工干预只需要安装和 ** 最终删除节点，而噪音数据的收集将自动进行。数据将存储在本地。当 ** 需要时，数据将被传输到基站，基站将编译数据库。将 ** 开发一个专用的Android应用程序来显示噪声图，包括强度水平、光谱内容和时间序列。所收集数据的准确性以及时间和 ** 空间粒度将允许更有效地控制噪声污染，并实现更舒适和更安全的 ** 工作环境，其中福祉和生产力得到提升，更舒适的教室，其中学习得到 ** 增强，以及更安静的医院单位，其中休息和恢复得到保护。Ontario

Acoustic noise generated by human activities and machinery pollutes the urban environment and has a series of health effects.**Exposure to high levels of noise may cause annoyance, hypertension, disturbance of sleep patterns, and hearing impairment. In**contrast, lower levels of noise are associated with improved well-being and performance in the workplace. In addition, good, quiet**spaces are critical in hospitals and schools.**Conventional indoor noise measurements do not provide fine time resolution or high accuracy at low intensity, do not collect**spectral content, and do not scale for measuring multiple locations at the same time.**This project will develop a noise monitoring system based on autonomous sensor nodes. The system will be scalable and each**node will operate for at least one month without need for recharging. Human intervention will be required only to install and**eventually remove the nodes, while the collection of noise data will proceed autonomously. The data will be stored locally. When**required, the data will be transferred to a base station that will compile a database. A dedicated Android application will be**developed to display the noise map with intensity levels, spectral content, and time sequences. The accuracy and the time and**space granularity of the collected data will allow to control noise pollution more effectively, and realize more pleasant and safer**workplace environments, where well-being and productivity are upgraded, more comfortable classrooms, where learning is**enhanced, and quieter hospital units, where rest and recovery are protected).**.**Ontario