Impact of strong noise on psychology
The noise caused by special environments such as ships, vehicles, aircrafts and other heavy machinery and equipment may be as high as 150dB, and personnel are easily injured by noise during training and work. Hearing loss surveys show that 34.5% of heavy machinery occupants have noise-induced hearing loss.
The noisy environment will have an impact on people's psychology, thus affecting work and work efficiency. Under the long-term effects of noise, the human cerebral cortex is prone to dysregulation and suppression, difficulty in concentration, emotional instability, irritability, irritability, unresponsive thinking, decreased learning ability, memory and cognitive ability, and alertness. , Spatial imagination and logical reasoning ability change, resulting in reduced work ability and work efficiency. Being in a noisy environment for a long time can also lead to a reduction in the ability to respond to alarm signals in the work environment, affecting the identification of interference signals, and thus affecting personnel communication and work efficiency. Therefore, it is one of the effective measures to improve personnel communication and work efficiency to develop noise protection technology for workers in special environments and to reduce noise interference to people in a continuous noise work environment.
The strong noise environment will have an irreversible effect on hearing, which will affect the work efficiency and ability of personnel. A report by the National Institute of Occupational Safety and Health states that continuous exposure to noise levels above 85dB can cause severe, or even permanent, hearing loss and affect frequency selection. Impaired hearing and reduced frequency selectivity can result in inaccurate detection, localization, and identification of sound sources in the environment, which can affect personnel work and work efficiency and endanger safety. When hearing is affected, language communication obstacles also occur. Especially when there is any type of background noise, it will be very difficult to communicate with others in language, which will seriously affect the ability of people to work together. Therefore, the development of hearing protection technology for workers in special environments and effective protection of personnel is one of the necessary measures to ensure and improve the working ability of personnel.
The continuous or impulse noise generated by modern equipment will seriously harm the physical and mental health of personnel, affecting the work efficiency of a single person or the entire team. When exposure to a strong noise environment is unavoidable, noise protection and hearing protection devices are one of the protective equipment necessary for workers in special environments. Although the noise protection and hearing protection of workers in special environments have gradually received attention, the performance of protective equipment still needs to be further improved. In order to solve the problem of noise protection and hearing protection for workers in special environments, Insigma has taken a step forward in the application of key technologies in hearing protection.
