Library is the place of peace and silence where students get opportunity to study and view different reference materials. Peace and silence is the most important feature of library. But many times students dont give much attention to it and consider it to be the normal place. So students make noise in library and ruin its attribute. So taking this issue into consideration, we decided to fabricate a simple electronic device that can solve this problem.This project is for the design and construction of the NOISE DETECTOR IN LIBRARY. This device is able to detect the noise, compare the intensity of louder sound and hence producing the warning signal to the librarian. This system is very economical and helpful in maintaining peace in library.
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In this project we have designed a technology to detect the noise and produce the output according to the intensity of noise made. When the sound exceeds the threshold, it is considered as noise which in turn triggers the timer and an output is seen in the LED. Sources of our literature survey are mainly the books, websites and consultation with the faculty members and interaction with colleagues. All those sources were very much useful for us to get knowledge about different components and upgrading our project.