The Design of Dangerous Chemicals Monitoring System
HUANG Pei
Abstract：A gas detection system based on AT89S51 microcontroller is designed, which is based on the microcontroller. The system through the hydrogen chloride, hydrogen sulfide and sulfur dioxide gas concentration sensor will be measured and the current signal after processed by voltage transformation evacuation microcontroller, and through the LED digital display of the current concentration. Single chip microcomputer will measure the value and set the standard concentration of comparison, if more than the limit value will produce sound alarm. The system realizes real-time and accurate detection of hydrogen chloride, hydrogen sulfide and sulfur dioxide gas concentrations and can be a long time reliable and reliable alarm, has a very broad application prospects.
Keywords：Hazardous ChemicalsMultiple Gas SensorGas Concentration DetectionAT89S51
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 55-57,58 )