| Concerns about Indoor Air Quality (IAQ) have been greatly increased since people more and more concern about environmental and health problems. With the researching of developing and designing of the indoor air quality detecting and controlling system, we introduced an indoor air quality detecting and controlling system based on metal-oxide gas sensor array, it's theory, implementation and applications. First, we introduced the actual research state of Indoor Air Quality - it's main pollutants and their effects and built indoor air models. Then, with the experiment using an indoor air quality testing device we designed, we obtain and analyzed the indoor air quality data, built the output models of the gas sensor array, find a method of temperature and humidity compensation and proposed concept and algorithm of overall index of indoor air quality. At last, we introduced the hardware and software of the indoor air quality detecting and controlling system. |
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