Indoor Formaldehyde Pollution Intelligent Monitoring System Developed

Formaldehyde is an important chemical raw materials and organic solvents,are manufacturing paint,plastics,rubber,dyes and other raw materials.At present,the materials used in home decoration inevitable containing formaldehyde.In addition, formaldehyde as disinfectants,preservatives,fumigants are also commonly found in people's side,seriously endangering people's health.At present,there are a lot of formaldehyde detection methods,this paper formaldehyde gas sensors to build intelligent control system to detect the concentration of formaldehyde,when its concentration exceeded the national standards for open windows and ventilation in a timely manner at the same time voice and phone alarm.This article on how to build a formaldehyde-based intelligent control system development and research with AT89C51 single-chip microcomputer as the core solution. AT89C51 are 8-bit single-chip,cost-effective,rich peripheral circuits,the design uses a serial communication means,using a small amount of I / O interface,using TLC2543 Serial A/D conversion chips,the expansion of a data acquisition system,Serial communication module CR6269A the intelligent alarm system to expand and simplify the system configuration and to reduce design cost.