Gas Concentration Monitoring System

Abstract

This design is a gas concentration monitoring system based on single chip microcomputer, is mainly composed of gas concentration degree testing parts, main control parts, display, and control of four main modules. The first to use gas concentration with modulus conversion function MQ - 9 degree of sensor to collect the current environment of gas concentration, and then sends the data to analyze the STC89C52RC MCU and processing. On the other hand the data and procedures set by the gas temperature range, when the environment gas is higher than the set value, single-chip signal alarm control buzzer sounded the alarm, at the same time control relay for the exhaust and a buzzer. After debugging, all requirements of this design has reached the expected.