Design and implementation of portable CO gas leak multi-mode alarm device

Aiming at issues exist in gas leak detection and alarm device leak such as detection precision is low,alarm mode is single,design a portable CO gas leak alarm device. The alarm uses MSP430F135 chip as control core,use sound and light,vibration,SMS module as alarm body,CO volume fraction is obtained by CO sensor,through data de-noising,amplification,A / D conversion,security authentication,real-time display,alarm trigger and other processess to complete real-time monitoring and processing of gas leak. In order to both satisfy two ways of installation and portability,built an external power supply and charging module automatically switches,real-time display battery charge and reminders,through laboratory and field test,the gas alarm device has convenient,highprecision,low power consumption,multi-mode alarm,easy to operate,and other advantages.