At present, many kindergartens have a weak awareness of the harm of noise pollution, ignoring the harm of noise pollution and paying little attention to the prevention and control of noise pollution. During the break, the campus is full of dynamic music, which is more disturbing than the music in the dance hall. When I first entered kindergarten, I felt upset, and other colleagues felt the same way. I asked the teacher, saying it was to make the children active. In fact, the school ignored the danger of noise pollution when the sound was too loud. In other kindergartens, there is no awareness of the danger of noise pollution in the selection of ringtones and the volume of playing eye exercises. The small speakers in the classroom become tweeters, and the sound intensity is harsh. Students? long-term exposure to this noise environment is not good for their health, and it will also cause noise pollution to surrounding residential areas and seriously affect their living standards.

      Osen took a professional team into more than a dozen kindergartens in Guangzhou to install automatic noise monitoring system, which realized real-time monitoring of noise value, reminding of color change when exceeding the standard, uploading data to the platform, viewing data monitoring in the remote background, making corresponding solutions and adjustments for noise exceeding the standard in time, helping to create a smart campus environment with high-quality acoustic environment quality, and also promoting the construction of quiet residential areas around the campus.