A portable embedded automobile exhaust detection device based on ARM11

There is an obvious pressing need for the rapid, sensitive and highly portable identification of automobile exhaust. In our study, a battery-operated, low-cost and portable embedded gas detection device is fabricated with ARM11 S3C6410 core as the main application processor. Results indicated that gas detection device exhibited outstanding properties such as stable and durable intensity. The automobile exhaust sensor system could cover a linear detection range of 20 ppm–3000 ppm (R=0.9981, n=7 ) and the detection limit of about 8ppm (S/N=3). Furthermore, the exhaust sensor system showed outstanding selectivity to automobile exhaust compared with other seven sorts of common volatile organic compounds (VOCs). This device shows how the discriminatory capacity utilizing CTL intensity pattern recognition. The performance of gas detection device suggested the promising application for the qualitative and quantitative identification of automobile exhaust in private cars.