การพัฒนาและวิเคราะห์สมรรถนะของอุปกรณ์ตรวจวัดคุณภาพอากาศอย่างง่าย

Abstract

This independent research aims to develop and analyze the accuracy of the simple air quality monitoring equipment generated compare with data from the Pollution Control Department's standard meter. It compared data from the Department of Pollution Control at measurement station 36. Yupparaj Wittayalai School , Si Phum Sub-district, Mueang District, Chiang Mai Province.And Internet of Things technology has been used to send and transmit the concentration of sensor-readable pollutants to the Internet, which saves significantly compares to the typical cost of measuring and air pollution reporting using four modules: PMS3003 , MQ131 , MQ136 and CCS811.To measure particulate matter (PM2.5 and PM10), ozone, carbon monoxide and volatile organic matter in the air respectively. According to the analysis, the PMS3003 module used to measure PM2.5 and PM10 has hourly correlation values of 0.7972 , 0.6785 respectively and 24-hour correlation up to 0.9527 , 0.9453 respectively. PM2.5 accuracy is 74.48 % , PM 10 is 76.78 % but MQ131 module is used to measure the concentration of ozone. There is a low accuracy value and statistical insignificant which differs from the MQ136 module used to measure carbon monoxide concentrations. There is an hourly correlation value and 24 hours at just 0.1403 , 0.0002 respectively with an accuracy value of 86.44 % and the CCS811 module used to measure the total amount of volatile organic matter. It is not possible to measure the type of volatile organic matter in the general atmosphere. Therefore , in conclusion the PMS3003 module and the MQ136 module have sufficient accuracy to be used as a spot surveillance value. But it cannot be used as a standard because there is a large amount of data error in the measurement.