SIGNALLING-INFORMING ACOUSTOMETRIC SYSTEM Russian patent published in 2015 - IPC G06K15/00 G06F3/147 G01H17/00 A61B5/16 

FIELD: measurement equipment.

SUBSTANCE: invention relates to technical facilities for provision of life safety. The system comprises a metering microphone with a transmission device, connected to a noise meter along a radio channel, a four-mode signalling-information table connected to a computing unit along a radio channel, and an information input device. The computing unit comprises a receiving device, a noise meter, an indication unit, a power supply unit, a transceiving device to collect information from the metering microphone and to transmit information to the signalling-information table, a RAM, a ROM, a microcomputer made as capable to detect the average noise intensity (L, dBA), by means of "sliding window" mode and with account of characteristics of used ear muffs, and calculation of risk of erroneous actions (R), specified by noise impact, according to the formula R=1-(0.0003167e^0,061112L+1.10521), at the same time the risk of erroneous actions (R) is coded by colour and mode, and the signal is transmitted to the table in the form of green, at R<0.3 - low risk, yellow, at 0.3≤R<0.6 - pronounced risk, red, at 0.6≤R<0.9 - high risk, red pulsating, at R≥0.9 - very high risk.

EFFECT: use of the invention makes it possible to increase efficiency of information about risk of erroneous actions specified by impact of production noise.

1 dwg, 1 tbl