精选优质文档-倾情为你奉上摘 要设计采用AT89C51单片机作为核心控制芯片,通过传感器采集空气中H2S浓度，并采用蜂鸣器报警和LED发光双重报警,有效提高了报警效率和质量,提升了生产安全性1。本文给出了报警系统的设计方案、声光报警原理并从软件和硬件两个方面给出了设计的实现方案，同时进行了对设计电路仿真分析。关键词：单片机；H2S；报警；仿真 。AbstractDesign uses AT89C51 microcontroller as the core control chip, collect the concentration of H2S in the air by sensor, and use LED light and buzzer alarm as dual alarm, it can effectively improve the efficiency and quality, enhance production safety. This p
