摘要(英) |
These days, labor consciousness is raising. To be capable of having safe and hygienic workplace, it is very important to work at a comfortable and healthy environment. ”Noise” is one of the dangerous physical factors at a workplace. Noise damages the hearing and affects the physical and psychological health which decreases work efficiency and increases the probability of accidental injury.
Basically, we use dosimeter to estimate the worker noise exposure. This instrument can measure the total personal noise exposure dose, but it can not identify the exact exposure location and the amount of staying. Understanding the reason, time, location, and the change of exposure can help engineers control noise economically and efficiently. These information can also assist hygienic promoters to set up more practical plans for protection from noise.
In order to measure worker’s location of exposure and dose of exposure precisely and provide the exposure information of noise immediately, this research combines noise sensing technology, wireless technology, electronic control technology, network technology and data management technology to build a noise exposure assessment and monitor system. This system can wirelessly send decibel that are instantly monitored making the worker’s location identified at once. The manager can monitor laborer’s working-hour, activity and dose of exposure by using this system. At the same time, when the dose of exposure exceeds the legal standard, the system will notify the laborers to invoke necessary protection.
The Laboratory tests showed that noise exposure dose measured by self-developed system were highly correlated with that obtained by the noise dosimeter (R=0.94) and there is no statistical difference. The results demonstrated that the system is capable of being a great method for worker’s noise exposure assessment and monitor. |
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