The machine in the hotel kitchen downstairs is ringing loudly. Is it infringement?

Kitchen noise sources mainly include exhaust fans and kitchen refrigeration equipment. Fan noise is one of the main noise sources of oil fume purifier, which belongs to aerodynamic noise. It is caused by rotating noise, eddy current noise and vibration noise. Rotating noise is produced by periodic impact on air when blades rotate, and eddy current noise is produced by boundary layer separation in surrounding airflow when blades rotate.

Noise is the sound with irregular and chaotic changes in the frequency and intensity of sound waves. Physiologically speaking, any sound that interferes with people's normal rest, study and work, as well as the sound that interferes with people's hearing. In this sense, there are many sources of noise, such as the noise of cars in the street, the voices in the quiet library, the noise of machines on the construction site, and the loud noise of the neighbor's TV. In the field of communication, the energy field that interferes with signal transmission is called noise. The source of this energy field can come from internal system or external environment.