Ear and labyrinth system for preventing the risk, integrating protection and information.

摘要

The invention consists in integrating into an individual hearing protection device operating by mechanical plugging of the auditory canal, a system which makes it possible to generate, in the region of the eardrum of the subject wearing the system, a pressure variation constituting an audible information signal. This information can also be broadcast in the environment of the subject, by an independent transducer. The information signal is generated when the RMS value or the peak value of the acoustic phenomenon picked up by a microphone in the immediate environment of the system exceeds known reference values. These are, for example, and without this being a limitation, those resulting from exposure to the characteristic levels supplied by the health and safety at work laws. A possible plugging device is represented in Figure 1, on which the boney part of the cranium has been represented at 1, the auditory canal at 2, with the outer ear at 3 and the eardrum at 4, which terminates and closes off the canal. A solid plug 5 closes off the canal, an electroacoustic transducer 6 integral with the plug makes it possible to generate a pressure variation, in front of the eardrum, constituting a perceptible acoustic signal. An optional transducer external to the system 7 broadcasts the information in the subject's environment. IMAGE