Design of Indoor Harmful Gas Monitor System

Abstract:

As people live or work on indoor environment of the perfect pursue, for from the household decorates the toxic gas such as formaldehyde, CO, and combustible gas of main composition methane (natural gas) will pay more attention to low concentration requirements. in order to build a safe and healthy environment, we design a simple and practical monitoring system, when the harmful gas exceeds bid, it can tell people in indoor gas solubility and promptly report to the police [1]. In this paper, we design the monitoring system using the MQ₂ gas sensor as a receiver, STC89C52 single-chip microcomputer as the core, 1602 LCD for displaying output, used for indoor and toxic gas detection, according to at the same time equipped with a buzzer alarm output.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 2376-2379
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.2376
• Online since: September 2013
• Authors: Yan Ling Yang, Zhi Ying Xie
• Keywords: A/D Converter, MQ₂ Gas Sensor, Poisonous Gases, STC89C52 Single-Chip Microcomputer

References

[1] YongHuaLiu. Architectural decoration cause indoor air pollution research [D]. Chongqing: chongqing university, 2004, In Chinese.

[2] ChongJin Liu. The development of gas sensors and the developing direction of [D]. 1999. 7 (2) computer automatic measurement and control. In Chinese.

[3] Yiping Huang, meng zhou. Progress in the development of liquid crystalline polymer (LCP) and [D]. Anhui chemicals STC89C52 SCM user manual , In Chinese.

[4] Wei-di Li, Qiang Guo. Application technology of LCD displays. China Publishing House of Electronics Industry[J]. 2000. 13.