警报
烟雾
报警信号
微型计算机
计算机科学
汽车工程
环境科学
模拟
工程类
电信
炸薯条
电气工程
废物管理
作者
Yang Wang,Lichun Han,Yonghui Zhao,Yuquan Xue,Liming Wang
出处
期刊:Journal of physics
[IOP Publishing]
日期:2021-11-01
卷期号:2113 (1): 012057-012057
标识
DOI:10.1088/1742-6596/2113/1/012057
摘要
Abstract With the rapid development of society and economy, various laboratories have become more complete in number and equipment, but subsequent laboratory accidents frequently occur. Therefore, it is imperative to construct a laboratory safety management system to ensure the safety of laboratory personnel and complete equipment. This article intends to design a smoke alarm, which mainly includes measuring the sensitivity of the smoke sensor to the concentration of smoke in the air, and the linear change of the sensor converting the corresponding analog signal into a digital signal. By designing the fan speed to be controlled by the change of smoke density, the speed of the motor is adjusted. And the alarm module can sound an alarm when the smoke concentration is certain, and at the same time, it can automatically cancel the alarm when the smoke concentration decreases. Finally, a simulation experiment is designed to simulate the effect of the sound alarm of the smoke alarm disperser on the dispersal of smoke under different working environments.
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