Acoustic noise monitoring for smart cities

人类活动和机械产生的噪声污染了城市环境，并对健康产生了一系列影响。**接触高水平的噪音可能会引起烦恼、高血压、睡眠模式紊乱和听力损伤。相比之下，较低的噪音水平与工作场所的幸福感和表现有关。此外，在医院和学校，良好、安静的空间至关重要。**传统的室内噪声测量不能在低强度下提供良好的时间分辨率或高精度，不能收集**光谱含量，并且不能同时测量多个位置。**本项目将开发基于自主传感器节点的噪声监测系统。该系统具有可扩展性，每个节点至少可运行一个月而无需充电。人工干预只需要安装和最终移除节点，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，数据将被传输到一个基站，该基站将编译一个数据库。一个专门的Android应用程序将**开发，以显示噪音地图与强度水平，频谱内容和时间序列。所收集数据的准确性以及时间和空间粒度将有助于更有效地控制噪音污染，实现更舒适、更安全的工作环境，从而提升幸福感和生产力；更舒适的教室，从而增强学习；更安静的医院单元，从而保护休息和恢复)

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